JP2017173096A - Parking lot information guide system, information terminal device, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a parking lot information guide system that can guide a user with information indicating comfortableness of a vehicle or a parking lot for each time during parking.SOLUTION: A parking lot information guide system 100 comprises: a comfortableness function calculation part 23 that calculates a comfortableness function that is a function of comfortableness to a parking time for a parking lot or each position in the parking lot; and an output control part 26 that displays, on a display 3, a guide screen for a parking lot or parking position generated by using the comfortableness function.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a parking lot information guidance system for guiding information related to a parking lot, an information terminal device for a parking lot information guidance system, and a program for an information terminal device.

  2. Description of the Related Art Conventionally, a system has been developed that searches for a parking lot in map data and guides information related to the parking lot or a travel route including the parking lot. In the conventional system, after stopping the vehicle in the parking lot, guidance is performed without considering the environment of the vehicle or the parking lot when the vehicle is taken out from the parking lot. For this reason, there has been a problem that the environment of the vehicle or the parking lot when the vehicle is taken out from the parking lot becomes uncomfortable for the user.

  In response to this problem, the parking lot information retrieval system of Patent Document 1 stores the required parking time information obtained as a result of prediction using past statistics in correspondence with the parking lot conditions at the departure of the parking lot. doing. Moreover, the parking lot information search system of patent document 1 acquires the parking lot conditions when the vehicle carrying the mobile communication device leaves the parking lot, and searches the retrieval required time information according to the parking lot conditions. The travel route passing through the parking lot is searched in consideration of the required delivery time of the same required delivery time information. Thereby, the guidance of the driving | running route which considered the time required for leaving when leaving a vehicle from a parking lot is enabled.

JP 2003-57057 A

  The parking lot information search system of Patent Document 1 uniquely determines a time when the user returns to the parked vehicle after stopping the vehicle in the parking lot, and searches for a travel route in consideration of the required time for leaving at this time. . For this reason, for example, when the user is not sure whether to return one hour or two hours after the start of parking, or when the time to return to the vehicle cannot be uniquely determined, guidance on the travel route in consideration of the required departure time is provided. There was a problem that could not be done.

  Moreover, the parking lot information search system of Patent Document 1 does not consider the environment of the parking lot at the time of delivery except for the time required for delivery, and does not consider the environment in the vehicle at the time of delivery. For this reason, about the environment other than the congestion situation in a parking lot or the parking lot periphery, there existed a problem which becomes unpleasant for a user like the conventional system.

  This invention is made in order to solve the above subjects, and shows the comfort of the vehicle or the parking lot at each parked time for a user who has not decided the time to return to the parked vehicle. It aims at providing the parking lot information guidance system which can guide information. Moreover, it aims at providing the information terminal device for this parking lot information guidance system, and the program for this information terminal device.

  The parking lot information guidance system of the present invention is generated by using a comfort level function calculation unit that calculates a comfort level function that is a function of the comfort level with respect to the parking time and a comfort level function for each parking lot or parking position in the parking lot. And an output control unit for displaying a guidance screen for a parking lot or parking position on a display device.

  The information terminal device of the present invention is an information terminal device that is mounted on or carried in a vehicle, and calculates a comfort level function that is a function of the comfort level with respect to the parking time for each parking lot or parking position in the parking lot. A function calculation unit and an output control unit that displays a guidance screen for a parking lot or a parking position generated using the comfort function on a display device.

  The program of the present invention includes a comfort level function calculation unit that calculates a comfort level function that is a function of a level of comfort with respect to parking time, for each parking position in a parking lot or a parking lot. It functions as an output control unit that displays a guidance screen for a parking lot or a parking position, which is generated using a degree function, on a display device.

  Since the parking lot information guidance system of this invention was comprised as mentioned above, it can guide the information which shows the comfort of the vehicle or parking lot in each time during parking. Moreover, according to this invention, the information terminal device for this parking lot information guidance system and the program for this information terminal device can be obtained.

It is explanatory drawing which combined the system block diagram of the parking lot information guidance system which concerns on Embodiment 1 of this invention, and the functional block diagram which shows the principal part of an information terminal device and a server apparatus. It is a hardware block diagram which shows the principal part of the information terminal device which concerns on Embodiment 1 of this invention. It is another hardware block diagram which shows the principal part of the information terminal device which concerns on Embodiment 1 of this invention. It is a hardware block diagram which shows the principal part of the server apparatus which concerns on Embodiment 1 of this invention. It is another hardware block diagram which shows the principal part of the server apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the information terminal device which concerns on Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the server apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the environmental information memorize | stored in the environmental information database which concerns on Embodiment 1 of this invention. It is a flowchart which shows the other operation | movement of the information terminal device and server apparatus which concern on Embodiment 1 of this invention. It is a flowchart which shows the other operation | movement of the information terminal device and server apparatus which concern on Embodiment 1 of this invention. It is explanatory drawing which shows the information which the parking lot search part which concerns on Embodiment 1 of this invention output to the information transmission part for output. It is explanatory drawing which shows the weather prediction information which the weather prediction information acquisition part which concerns on Embodiment 1 of this invention acquired from the weather information database. It is a flowchart which shows the other operation | movement of the information terminal device and server apparatus which concern on Embodiment 1 of this invention. It is explanatory drawing which shows the guidance screen which the output control part which concerns on Embodiment 1 of this invention displayed on the display apparatus. It is explanatory drawing which shows the other guidance screen which the output control part which concerns on Embodiment 1 of this invention displayed on the display apparatus. It is explanatory drawing which shows the other environmental information memorize | stored in the environmental information database which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the other weather forecast information which the weather forecast information acquisition part which concerns on Embodiment 1 of this invention acquired from the weather information database. It is explanatory drawing which shows the other information which the parking lot search part which concerns on Embodiment 1 of this invention output to the information transmission part for output. It is explanatory drawing which shows the other environmental information memorize | stored in the environmental information database which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the other weather forecast information which the weather forecast information acquisition part which concerns on Embodiment 1 of this invention acquired from the weather information database. It is explanatory drawing which shows the other information which the parking lot search part which concerns on Embodiment 1 of this invention output to the information transmission part for output. It is explanatory drawing which combined the other system block diagram which shows the principal part of the information terminal device and the server apparatus with the other system block diagram of the parking lot information guidance system which concerns on Embodiment 1 of this invention. It is explanatory drawing which combined the system block diagram of the parking lot information guidance system which concerns on Embodiment 2 of this invention, and the functional block diagram which shows the principal part of an information terminal device and a server apparatus. It is explanatory drawing which shows the color of the icon image in the guidance screen which concerns on Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the information terminal device which concerns on Embodiment 2 of this invention. It is explanatory drawing which shows the guidance screen which the output control part which concerns on Embodiment 2 of this invention displayed on the display apparatus. It is explanatory drawing which shows the other guidance screen which the output control part which concerns on Embodiment 2 of this invention displayed on the display apparatus. It is explanatory drawing which combined the system block diagram of the parking lot information guidance system which concerns on Embodiment 3 of this invention, and the functional block diagram which shows the principal part of an information terminal device and a server apparatus. It is explanatory drawing which shows the other environmental information memorize | stored in the environmental information database which concerns on Embodiment 3 of this invention. It is explanatory drawing which shows the other information which the parking lot search part which concerns on Embodiment 3 of this invention output to the output information transmission part. It is explanatory drawing which shows the other weather forecast information which the weather forecast information acquisition part which concerns on Embodiment 3 of this invention acquired from the weather information database. It is a flowchart which shows operation | movement of the information terminal device which concerns on Embodiment 3 of this invention. It is explanatory drawing which shows the guidance screen which the output control part which concerns on Embodiment 3 of this invention displayed on the display apparatus. It is explanatory drawing which shows the other guidance screen which the output control part which concerns on Embodiment 3 of this invention displayed on the display apparatus. It is explanatory drawing which shows the other guidance screen which the output control part which concerns on Embodiment 3 of this invention displayed on the display apparatus. It is explanatory drawing which shows the other guidance screen which the output control part which concerns on Embodiment 3 of this invention displayed on the display apparatus. It is explanatory drawing which shows the other guidance screen which the output control part which concerns on Embodiment 3 of this invention displayed on the display apparatus. It is explanatory drawing which shows the other guidance screen which the output control part which concerns on Embodiment 3 of this invention displayed on the display apparatus. It is explanatory drawing which combined the system block diagram of the parking lot information guidance system which concerns on Embodiment 4 of this invention, and the functional block diagram which shows the principal part of an information terminal device and a server apparatus. It is a flowchart which shows operation | movement of the information terminal device which concerns on Embodiment 4 of this invention. It is explanatory drawing which shows the guidance screen which the output control part which concerns on Embodiment 4 of this invention displayed on the display apparatus.

Embodiment 1 FIG.
FIG. 1 is an explanatory diagram combining a system configuration diagram of a parking lot information guidance system according to Embodiment 1 of the present invention and a functional block diagram showing main parts of an information terminal device and a server device. The system configuration of the parking lot information guidance system 100 will be described with reference to FIG.

  The host vehicle 1 includes an information terminal device 2, a display device 3 that displays image data generated by the information terminal device 2 as an image, and an audio output device 4 that outputs audio data generated by the information terminal device 2 as sound. And an operation input device 5 that receives an operation input to the information terminal device 2.

  The information terminal device 2 is, for example, an in-vehicle information terminal such as a car navigation device mounted on the host vehicle 1 or a portable information terminal such as a smartphone, a tablet computer, or a PND (Portable Navigation Device) brought into the host vehicle 1. It is configured.

  The display device 3 is configured by a display such as a liquid crystal display, an organic EL (Electro Luminescence) display, a plasma display, or a cathode ray tube display. The audio output device 4 is constituted by a speaker, for example. The operation input device 5 is configured by, for example, a touch panel integrated with the display of the display device 3. As shown in FIG. 1, the display device 3, the audio output device 4, and the operation input device 5 may be separate from the information terminal device 2 or may be integrated with the information terminal device 2.

  A plurality of vehicles different from the own vehicle 1 (hereinafter collectively referred to as “other vehicles”) include the same information terminal device 2, display device 3, audio output device 4 and operation input device 5 as the own vehicle 1. Have. In FIG. 1, illustration of other vehicles is omitted.

  The information terminal device 2 of each vehicle is capable of wireless communication with the server device 6. The server device 6 is capable of wireless communication with the first external server device 7 and is capable of wireless communication with the second external server device 8.

  The first external server device 7 has a weather information database 71. The weather information database 71 stores weather history information and weather prediction information for each region. Specifically, for example, weather history information indicating temperature, weather, humidity, atmospheric pressure, wind speed, and the like every predetermined time interval (for example, 15 minutes) in a period from five years ago to the present is stored. Further, for example, weather prediction information indicating temperature, weather, humidity, atmospheric pressure, wind speed, and the like every predetermined time interval (for example, 15 minutes) in the period from the present to the third day is stored.

  The second external server device 8 has a parking lot information database 81. The parking lot information database 81 stores parking lot information regarding each of a plurality of parking lots. Specifically, for example, each parking lot address, name, position, fee, area, discount conditions, business hours, waiting time, fullness, corresponding vehicle type, presence of incidental facilities, presence of road paving, presence of roofs, Parking information indicating the presence / absence of a floor, the presence / absence of a solid, the presence / absence of a tower, the presence / absence of a basement, and the like is stored.

  A parking lot information guidance system 100 is configured by the host vehicle 1, another vehicle, the server device 6, the first external server device 7, and the second external server device 8.

Next, with reference to FIG. 1, the principal part of the information terminal device 2 and the server apparatus 6 is demonstrated.
The navigation function unit 10 uses a GPS signal received from a GPS satellite by a GPS (Global Positioning System) receiver (not shown), or output signals of a gyro sensor, an acceleration sensor, and a wheel speed sensor (not shown). The position is calculated. The navigation function unit 10 searches for a travel route from the current position of the host vehicle 1 to a destination set by the operation of the operation input device 5 using map data stored in a storage device (not shown). . The navigation function unit 10 selects a travel route to be guided from the search results, generates various image data used for guiding the travel route, and generates various audio data used for guiding the travel route. It is.

  The output control unit 26 causes the display device 3 to display the image data generated by the navigation function unit 10 as an image. The output control unit 26 causes the audio output device 4 to output the audio data generated by the navigation function unit 10 as audio.

  The stop determination unit 11 determines whether or not the host vehicle 1 is stopped. Specifically, when the side brake of the host vehicle 1 operates, when the information terminal device 2 receives a parking signal, when the accessory power source (hereinafter referred to as “ACC”) of the host vehicle 1 is turned off, When the engine of the vehicle 1 is turned off, the stop determination unit 11 determines that the host vehicle 1 has started to stop. Thereafter, when the side brake of the host vehicle 1 is released, when parking is released, when the ACC of the host vehicle 1 is turned on, or when the engine of the host vehicle 1 is turned on, the stop determination unit 11 It is determined that 1 has stopped. The stop determination unit 11 notifies the comfort level information generation unit 12 whether or not the host vehicle 1 is stopped.

  The comfort level information generating unit 12 generates information indicating some index corresponding to the comfort level for the user (hereinafter referred to as “comfort level information”). Hereinafter, in Embodiment 1, the temperature in the passenger compartment of the host vehicle 1 is used as the index. In this case, the comfort level information generation unit 12 generates comfort level information indicating the temperature in the passenger compartment using a thermometer (not shown) provided in the host vehicle 1.

  The comfort information generation unit 12 can identify the own vehicle 1 by using the information acquired from the navigation function unit 10 and the comfort information generation position information indicating the position of the own vehicle 1 when the comfort information is generated. The vehicle identification information, which is information, the parking start date / time information indicating the date and time when the host vehicle 1 started parking, and the comfort level information generation date / time information indicating the date and time when the comfort level information is generated are generated. . The comfort level information generation date / time information may indicate an elapsed time since the host vehicle 1 started parking. The comfort level information generation unit 12 may be referred to as comfort level information, comfort level information generation position information, vehicle identification information, parking start date / time information, and comfort level information generation date / time information (hereinafter collectively referred to as “comfort level information”). .) Is generated at a predetermined time interval (for example, every 15 minutes) while the host vehicle 1 is parked in the parking lot.

  The comfort level information transmitting unit 13 transmits the comfort level information generated by the comfort level information generating unit 12 by wireless communication. The comfort level information receiving unit 14 receives the comfort level information transmitted by the comfort level information transmitting unit 13 and outputs it to the environment information generating unit 15.

  The environment information generation unit 15 displays the weather history information corresponding to the comfort level information, the comfort level information generation position information, and the comfort level information generation date / time information among the comfort level information received by the comfort level information receiving unit 14. 71 is obtained from 71. Specifically, for example, when the comfort level information is information indicating the temperature in the passenger compartment, the environment information generation unit 15 sets the comfort level information generation date / time information in the area including the position indicated by the comfort level information generation position information. The weather history information indicating the temperature, weather, humidity, and atmospheric pressure in the time section including the date and time to be acquired is acquired from the weather information database 71.

  The environment information generation unit 15 generates information (hereinafter referred to as “environment information”) in which the comfort level information received by the comfort level information reception unit 14 and the weather history information acquired from the weather information database 71 are associated with each other. The information is stored in the environment information database 16.

  The environment information database 16 accumulates and stores environment information generated by the environment information generation unit 15. In other words, the environment information database 16 stores environment information generated using comfort level information received from a plurality of vehicles including the host vehicle 1 and other vehicles.

  When a search for a parking lot is instructed by an operation of the operation input device 5, the search information generation unit 17 generates information used for searching a parking lot (hereinafter referred to as “search information”). The search information includes information indicating the current position of the host vehicle 1 or the position of the destination generated by the navigation function unit 10. Further, the search information includes a reference value (hereinafter simply referred to as “reference value”) to be compared with the value indicated by the comfort level information. For example, when the comfort level information is information indicating the temperature in the passenger compartment, the reference value is a value indicating the current temperature setting of the vehicle 1 and the current vehicle of the vehicle 1 detected by a temperature sensor (not shown). It is a value indicating the indoor temperature or a value preset by the user.

  The search information transmission unit 18 transmits the search information generated by the search information generation unit 17 by wireless communication. The search information receiving unit 19 receives the search information transmitted by the search information transmitting unit 18 and outputs it to the parking lot search unit 20.

  The parking lot search unit 20 uses the search information received by the search information receiving unit 19 and uses the search information received from the parking lot information database 81 to store the current position of the host vehicle 1 or the vicinity of the destination. A parking lot located within a radius of 200 meters (for example, hereinafter referred to as “guide parking lot”) is searched. The parking lot search unit 20 acquires the parking lot information related to each guidance target parking lot from the parking lot information database 81, and distance information indicating the linear distance from the current position of the host vehicle 1 to each guidance target parking lot, And the expected arrival date information which shows the estimated date when the own vehicle 1 arrives at each guidance object parking lot is produced | generated.

  The parking lot search unit 20 outputs information indicating the position of the guidance target parking lot in the parking lot information related to each guidance target parking lot and expected arrival date and time information to the weather prediction information acquisition unit 21. is there. The parking lot search unit 20 outputs a reference value included in the search information to the comfort function calculation unit 23. The parking lot search unit 20 outputs at least a part of information including information indicating the position of the guidance target parking lot among the parking lot information regarding each guidance target parking lot, distance information, and estimated arrival date and time information. This is output to the use information transmitting unit 24.

  The weather prediction information acquisition unit 21 acquires, from the weather information database 71, weather prediction information after the date and time indicated by the predicted arrival date and time information in the area including the position of each guidance target parking lot. When there are a plurality of areas including the position of the guidance target parking lot, the weather prediction information acquisition unit 21 acquires the weather prediction information of each area. The weather prediction information acquisition unit 21 outputs the acquired weather prediction information to the environment information search unit 22 in association with the information indicating the position of the guidance target parking lot and the predicted arrival date / time information.

  The environment information search unit 22 performs the following first search process, second search process, third search process, and fourth search process for each guidance target parking lot. The first search process is a process of searching for environmental information having comfort level information and the like generated at a position close to the guidance target parking lot from among the environmental information stored in the environmental information database 16. A 2nd search process is a process which searches the environmental information produced | generated with the vehicle which started parking at the date near the estimated arrival date of the said guidance object parking lot among the environmental information contained in the result of a 1st search process. is there. The third search process has weather history information close to the weather forecast information of the area including the guidance target parking lot among the environmental information included in the result of the second search process, and the forecast date and time of the weather forecast information This is a process of searching for environmental information having a date and time close to (year is excluded from the comparison target). In the fourth search process, the environmental information including the comfort level information generated by the same vehicle among the environmental information included in the result of the third search process is a predetermined number (for example, three) of environmental information. This is a search process. The environmental information search unit 22 outputs environmental information included in the result of the fourth search process to the comfort function calculation unit 23 in association with the weather prediction information for each guidance target parking lot.

  The comfort function calculation unit 23 uses the reference value included in the search information, the comfort value indicated by the environment information searched by the environment information search unit 22, and the weather prediction information associated with the environment information. Thus, a function of comfort level (hereinafter referred to as “comfort level function”) with respect to the elapsed time (hereinafter referred to as “parking time”) from the estimated arrival date and time is calculated. The comfort level function calculating unit 23 calculates a comfort level function for each guidance target parking lot.

  The output information transmission unit 24 uses the parking lot information, distance information, and predicted arrival date / time information output by the parking lot search unit 20, and information indicating the comfort function calculated by the comfort function calculation unit 23, Information (hereinafter referred to as “output information”) associated with information indicating the position of the parking lot is transmitted by wireless communication. The output information receiving unit 25 receives the output information transmitted by the output information transmitting unit 24 and outputs it to the output control unit 26.

  The output control unit 26 uses the output information received by the output information receiving unit 25 to generate image data that guides various types of information regarding each guidance target parking lot, and the image data is displayed on the display device 3 as an image. It is what is displayed. Moreover, the output control part 26 produces | generates the audio | voice data which guides the various information regarding each guidance object parking lot using the output information which the output information receiving part 25 received, and outputs the said audio | voice data as audio | voice. It is made to output to the apparatus 4.

  At this time, the output control unit 26 causes the display device 3 to display a screen including a characteristic diagram showing the comfort function of each guidance target parking lot. The sort control unit 27 rearranges a plurality of characteristic diagrams displayed on the display device 3 by the output control unit 26 in accordance with the operation of the operation input device 5.

  Navigation function unit 10, stop determination unit 11, comfort level information generation unit 12, comfort level information transmission unit 13, search information generation unit 17, search information transmission unit 18, output information reception unit 25, output control unit 26, and The sort control unit 27 is provided in the information terminal device 2. Comfort information receiver 14, environment information generator 15, environment information database 16, search information receiver 19, parking lot search unit 20, weather forecast information acquisition unit 21, environment information search unit 22, comfort function calculation unit 23 The output information transmitting unit 24 is provided in the server device 6.

Next, the hardware configuration of the information terminal device 2, the display device 3, the audio output device 4, and the operation input device 5 will be described with reference to FIGS. 2 and 3.
FIG. 2 shows an example of the hardware configuration of the information terminal device 2, the display device 3, the audio output device 4, and the operation input device 5. As shown in FIG. 2, the display device 3 shown in FIG. 1 is realized by a display 40, the audio output device 4 is realized by a speaker 41, and the operation input device 5 is realized by a touch panel 42 integrated with the display 40. The comfort information transmitting unit 13 and the search information transmitting unit 18 shown in FIG. 1 are realized by a transmitter 43 for wireless communication, and the output information receiving unit 25 is realized by a receiver 44 for wireless communication.

  Further, in the memory 45, the functions of the navigation function unit 10, the stop determination unit 11, the comfort level information generation unit 12, the search information generation unit 17, the output control unit 26, and the sort control unit 27 illustrated in FIG. Is stored. When the processor 46 reads out and executes the program stored in the memory 45, the navigation function unit 10, the stop determination unit 11, the comfort level information generation unit 12, the search information generation unit 17, the output control unit 26, and the sort control unit 27 functions are realized.

  The processor 46 is configured by, for example, a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit). The memory 45 is, for example, a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory), or an EEPROM (Electrically Erasable Programmable Memory). A flexible disk, an optical disk, a magneto-optical disk, or the like is used.

  Alternatively, as shown in FIG. 3, the navigation function unit 10, the stop determination unit 11, the comfort level information generation unit 12, the search information generation unit 17, the output control unit 26, and the sort control unit 27 shown in FIG. 47 may be realized. The processing circuit 47 is, for example, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), a system LSI (Large-Scale Integration), or a combination thereof. The functions of the navigation function unit 10, the stop determination unit 11, the comfort level information generation unit 12, the search information generation unit 17, the output control unit 26, and the sort control unit 27 may be realized by processing circuits. These may be realized together with a processing circuit.

Next, the hardware configuration of the server device 6 will be described with reference to FIGS. 4 and 5.
FIG. 4 shows an example of the hardware configuration of the server device 6. As shown in FIG. 4, the output information transmitter 24 shown in FIG. 1 is realized by a transmitter 50 for wireless communication, and the comfort information receiver 14 and the search information receiver 19 are received by a receiver 51 for wireless communication. The environment information database 16 is realized by the second memory 52. Further, in the first memory 53, the functions of the environment information generation unit 15, the parking lot search unit 20, the weather prediction information acquisition unit 21, the environment information search unit 22, and the comfort function calculation unit 23 shown in FIG. Is stored. When the processor 54 reads out and executes the program stored in the first memory 53, the environment information generation unit 15, the parking lot search unit 20, the weather prediction information acquisition unit 21, the environment information search unit 22, and the comfort function calculation unit. 23 functions are realized.

  A specific example of the processor 54 is the same as the processor 46 shown in FIG. A specific example of the first memory 53 is the same as the memory 45 shown in FIG. A specific example of the second memory 52 is the same as the memory 45 shown in FIG.

  Alternatively, as shown in FIG. 5, the functions of the environment information generation unit 15, the parking lot search unit 20, the weather forecast information acquisition unit 21, the environment information search unit 22, and the comfort function calculation unit 23 shown in FIG. 1 are dedicated processing circuits. It may be realized by 55. A specific example of the processing circuit 55 is the same as the processing circuit 47 shown in FIG.

Next, operations of the stop determination unit 11, the comfort level information generation unit 12, and the comfort level information transmission unit 13 of the information terminal device 2 will be described with reference to the flowchart of FIG.
First, in step ST1, the stop determination unit 11 determines whether or not the host vehicle 1 is stopped. If the host vehicle 1 is stopped (step ST1 “YES”), then in step ST2, the comfort level information generating unit 12 generates comfort level information and the like. Next, in step ST3, the comfort level information transmission unit 13 transmits the comfort level information generated by the comfort level information generation unit 12 in step ST2. The processes of steps ST2 and ST3 are executed at predetermined time intervals (for example, every 15 minutes) while the host vehicle 1 is parked in the parking lot.

Next, operations of the comfort information receiving unit 14 and the environment information generating unit 15 of the server device 6 will be described with reference to the flowchart of FIG.
First, in step ST11, the comfort level information receiving unit 14 receives the comfort level information transmitted by the comfort level information transmitting unit 13 in step ST3 of FIG. The comfort level information receiving unit 14 outputs the received comfort level information and the like to the environment information generating unit 15.

  Next, in step ST12, the environment information generation unit 15 includes the comfort level information, the comfort level information generation position information, and the comfort level information generation date and time information among the comfort level information received by the comfort level information reception unit 14 in step ST11. The weather history information corresponding to is acquired from the weather information database 71. Specifically, when the comfort level information is information indicating the temperature in the passenger compartment, the temperature in the time interval including the date and time indicated by the comfort level information generation date and time information in the region including the position indicated by the comfort level information generation position information The weather history information indicating the weather, humidity, and atmospheric pressure is acquired from the weather information database 71.

  Next, in step ST13, the environment information generation unit 15 associates the comfort level information received by the comfort level information reception unit 14 in step ST11 with the weather history information acquired from the weather information database 71 in step ST12. Information is generated and stored in the environment information database 16.

  FIG. 8 shows an example of environment information stored in the environment information database 16. As shown in FIG. 8, the environment information associates comfort level information received from each vehicle with weather history information acquired from the weather information database 71. Each environment information is assigned a serial number (hereinafter referred to as “record”) indicating the order stored in the environment information database 16. The records are given for the sake of clarity in describing the embodiment, and need not be stored in the actual environment information database 16.

  The environmental information of the records 01 to 05 shown in FIG. 8 includes comfort level information generated by the same vehicle. Since the information terminal device 2 of the vehicle is a dedicated vehicle-mounted information terminal and can identify the vehicle by an identifier (hereinafter referred to as “ID”) assigned to the vehicle-mounted information terminal, the ID is used as vehicle identification information. Used. When the information terminal device 2 is a portable information terminal, for example, information indicating a vehicle identification number or information indicating the contents of a license plate is acquired from the vehicle side, and the information is used as vehicle identification information.

Next, operations of the search information generation unit 17 and the search information transmission unit 18 of the information terminal device 2 will be described with reference to a part I surrounded by a solid line in the flowchart of FIG.
First, in step ST <b> 21, the search information generation unit 17 determines whether a search for a parking lot is instructed by an operation of the operation input device 5. If a search for a parking lot is instructed (step ST21 “YES”), then in step ST22, the search information generation unit 17 generates search information. Next, in step ST23, the search information transmitting unit 18 transmits the search information generated by the search information generating unit 17 in step ST22.

Next, referring to the portion II surrounded by the solid line in the flowchart of FIG. 10, the search information receiving unit 19, the parking lot search unit 20, the weather prediction information acquisition unit 21, and the environment information search unit of the server device 6. 22, the operation of the comfort function calculation unit 23 and the output information transmission unit 24 will be described.
First, in step ST31, the search information receiving unit 19 receives the search information transmitted by the search information transmitting unit 18 in step ST23 of FIG. The search information receiving unit 19 outputs the received search information to the parking lot search unit 20.

  Next, in step ST32, the parking lot search unit 20 uses the search information received by the search information receiving unit 19 in step ST31, and among the parking lots whose information is stored in the parking lot information database 81. The guidance target parking lot in the vicinity of the current position of the vehicle 1 or the destination is searched.

  Next, in step ST33, the parking lot search unit 20 acquires the parking lot information related to each guidance target parking lot from the parking lot information database 81, and from the current position of the host vehicle 1 to each guidance target parking lot. Distance information indicating a straight line distance and predicted arrival date information indicating the predicted date and time when the host vehicle 1 arrives at each guidance target parking lot are generated.

  At this time, the parking lot search unit 20 outputs information indicating the position of each guidance target parking lot and arrival prediction date / time information to the weather prediction information acquisition unit 21. The parking lot search unit 20 outputs the reference value included in the search information to the comfort function calculation unit 23. The parking lot search unit 20 outputs at least a part of information including information indicating the position of the guidance target parking lot among the parking lot information regarding each guidance target parking lot, distance information, and estimated arrival date and time information. The data is output to the information transmission unit 24.

  FIG. 11 shows an example of information that the parking lot search unit 20 outputs to the output information transmission unit 24. In the example of FIG. 11, the parking lot search unit 20 searches for three guidance target parking lots “XX first parking lot”, “ΔΔ motor pool”, and “□□ front parking lot”. The parking lot search part 20 shows the information which shows the position (coordinate value of latitude and longitude) of each guidance object parking lot among the parking lot information acquired from the parking lot information database 81, the information which shows a name, and a charge. Information is output to the output information transmitter 24. In addition, the parking lot search unit 20 outputs distance information and estimated arrival date information of each guidance target parking lot to the output information transmission unit 24.

  Next, in step ST <b> 34, the weather prediction information acquisition unit 21 acquires, from the weather information database 71, weather prediction information after the date and time indicated by the predicted arrival date and time information in an area including the position of each guidance target parking lot. The weather prediction information acquisition unit 21 outputs the acquired weather prediction information to the environment information search unit 22 in association with the information indicating the position of the guidance target parking lot and the predicted arrival date / time information.

  FIG. 12 shows an example of weather prediction information acquired by the weather prediction information acquisition unit 21. FIG. 12 shows that when the date and time indicated by the arrival prediction date and time information is 12:00 on September 2, 2015, the weather prediction information acquisition unit 21 performs every 15 minutes from 14:00 to 15:00 on the same day. The example which acquired the weather forecast information of is shown.

  Next, in step ST35, the environment information search unit 22 performs a first search process, a second search process, a third search process, and a fourth search process for each guidance target parking lot. In the first search process, the environment information search unit 22 searches the environment information stored in the environment information database 16 for environment information having comfort level information and the like generated at a position close to the guidance target parking lot. To do. In the second search process, the environment information search unit 22 is generated by a vehicle that has started parking at a date and time that is close to the expected arrival date and time of the guidance target parking lot in the environment information included in the result of the first search process. Search for environmental information. In the third search process, the environment information search unit 22 has weather history information close to the weather forecast information of the area including the guidance target parking lot among the environment information included in the result of the second search process, and The environment information having a date and time (year is excluded from the comparison target) close to the forecast date and time of the weather forecast information is searched. In the fourth search process, the environment information search unit 22 includes a predetermined number (for example, 3) of environment information including comfort level information generated by the same vehicle among the environment information included in the result of the third search process. Search for existing environmental information.

  Hereinafter, specific examples of the first search process, the second search process, the third search process, and the fourth search process will be described. The environment information database 16 stores environment information of records 01 to 05 shown in FIG. The parking lot search unit 20 searches for the three guidance target parking lots shown in FIG. The weather prediction information acquisition unit 21 acquires the weather prediction information shown in FIG. 12 in the area including “XX first parking lot”.

  First, the first search process will be described. The environment information search unit 22 subtracts the latitude coordinate value indicated by the comfort level information generation position information of the record 01 shown in FIG. 8 from the latitude coordinate value of “XXX first parking lot” shown in FIG. Convert value to distance. In this case, the difference value of the coordinate values is 34.887100−34.887017 = 0.000083, which is about 9.2 meters (m) in terms of distance.

  Further, the environment information search unit 22 subtracts the longitude coordinate value indicated by the comfort level information generation position information of the record 01 shown in FIG. 8 from the longitude coordinate value of “XXX first parking lot” shown in FIG. 11. The difference value is converted into a distance. In this case, the difference value of the coordinate values is 135.231800−135.231758 = 0.000042, which is about 3.8 m in terms of distance.

  Similarly, the environment information search unit 22 calculates the latitude coordinate value indicated by the comfort level information generation position information of the records 02 to 05 shown in FIG. 8 from the latitude coordinate value of “XX first parking lot” shown in FIG. 11. And each difference value is converted into a distance. Further, the longitude coordinate value indicated by the comfort level information generation position information of the records 02 to 05 shown in FIG. 8 is subtracted from the longitude coordinate value of “XXX first parking lot” shown in FIG. Is converted to distance.

  The environment information search unit 22 converts the distance obtained by converting the difference value of the latitude in the environment information of the records 01 to 05 illustrated in FIG. 8 within a predetermined range (for example, 10 m or less) and converts the difference value of the longitude. The environmental information whose distance is within a predetermined range (for example, 10 m or less) is searched. In this example, all the environment information of the records 01 to 05 is included in the result of the first search process.

  Next, the second search process will be described. The environment information search unit 22 compares the date indicated by the predicted arrival date / time information of “XX first parking lot” shown in FIG. 11 with the date indicated by the parking start date / time information of the record 01 shown in FIG. Calculate the day difference. In this case, the difference in date between September 1 and September 2 is one day. It is not necessary to compare years.

  Further, the environment information search unit 22 compares the time indicated by the estimated arrival date / time information of “XX first parking lot” shown in FIG. 11 with the time indicated by the parking start date / time information of the record 01, and calculates the difference in time. Is calculated. In this case, the time difference between 14:00 and 14:00 is 0 minutes.

  Similarly, the environment information search unit 22 obtains the date indicated by the predicted arrival date / time information of “XX first parking lot” shown in FIG. 11 and the date indicated by the parking start date / time information of records 02 to 05 shown in FIG. 8. Compare each and calculate the difference between the month and day. Moreover, the environment information search part 22 respectively shows the time which the arrival estimated date information of "XX 1st parking lot" shown in FIG. 11 and the time which the parking start date information of the records 02-05 shown in FIG. 8 show. In comparison, a time difference is calculated.

  The environment information search unit 22 includes, for example, the environment information of the records 01 to 05 shown in FIG. 8 in which the difference between the month and day by the comparison is within 2 days and the difference in time is within 1 hour. Search for. In this example, all the environment information of the records 01 to 05 is included in the result of the second search process.

  Next, the third search process will be described. The environment information search unit 22 indicates the date and time corresponding to the weather forecast information in the first row of the matrix-like weather forecast information shown in FIG. 12 and the comfort level information generation date and time information of the records 01 to 05 shown in FIG. The date and time are compared, and the difference between the month and day and the difference in time are calculated. It is not necessary to compare years. The environment information search unit 22 includes the calculated date difference within the predetermined range (for example, within two days) in the environmental information of the records 01 to 05, and the calculated time difference within the predetermined range (for example, 1). Select environmental information that is within time). In this case, all the environment information of the records 01 to 05 is selected.

  The environment information search unit 22 also includes the temperature, weather, humidity, and air pressure indicated by the weather forecast information in the first row shown in FIG. 12, and the temperature, weather, Compare humidity and barometric pressure. In this case, for example, regarding the weather history information of record 01, the temperature difference is 35.0-36.0 = −1 degree (° C.), the weather is clear and the same, and the humidity difference is 11-11 = 0 percent (%). The difference in atmospheric pressure is 1017-1017 = 0 hectopascals (hPa). The environment information search unit 22 compares the records 02 to 05 in the same manner.

  Similarly, the environment information search unit 22 obtains the date and time corresponding to the weather prediction information on and after the second line shown in FIG. 12 and the date and time indicated by the comfort level information generation date and time information of the records 01 to 05 shown in FIG. In comparison, environment information in which both the date difference and the time difference are within a predetermined range is selected. The environment information search unit 22 includes the temperature, weather, humidity, and atmospheric pressure indicated by the weather forecast information in the second and subsequent lines shown in FIG. 12, and the temperature, weather indicated by the weather history information in the environmental information selected for the weather forecast information. Compare the humidity and barometric pressure respectively.

  The environmental information search unit 22 has a temperature difference within ± 2 ° C., the same weather, and a humidity difference of ± 10 from the weather prediction information, among the environmental information of the records 01 to 05 shown in FIG. %, And the environmental information whose atmospheric pressure difference is within ± 10 hPa is searched. When there are a plurality of environmental information satisfying the condition for one weather prediction information, the environmental information with the smallest difference is searched. In this example, all the environment information of the records 01 to 05 is included in the result of the third search process.

  Next, the fourth search process will be described. The environmental information search unit 22 refers to the vehicle identification information of the records 01 to 05 shown in FIG. 8 and searches for environmental information in which there are three or more pieces of environmental information including comfort level information generated by the same vehicle. To do. In this example, since the comfort level information and the like of the records 01 to 05 are all generated by the same vehicle, all the environment information of the records 01 to 05 is included in the result of the fourth search process.

  Similarly, the environment information search unit 22 executes a first search process, a second search process, a third search process, and a fourth search process for “ΔΔ motor pool”. In addition, the environment information search unit 22 performs a first search process, a second search process, a third search process, and a fourth search process for “pre-parking lot”. The environment information search unit 22 associates the environment information included in the result of the fourth search process with the weather prediction information and outputs it to the comfort function calculation unit 23 for each guidance target parking lot.

  Next, in step ST36, the comfort function calculation unit 23 uses the reference value output by the parking lot search unit 20 in step ST33 and the environmental information and weather prediction information output by the environment information search unit 22 in step ST35. Then, a comfort level function is calculated for each guidance target parking lot.

  Hereinafter, a specific example of the process for calculating the comfort function will be described. The comfort level information is information indicating the temperature in the passenger compartment, and the reference value is set to 25 ° C.

The result of the fourth search process related to “XXX first parking lot” in step ST35 includes the environment information of records 01 to 05 shown in FIG. The comfort level function calculation unit 23 calculates the absolute value of the difference value between the value of the comfort level information and the reference value in each of the records 01 to 05 as in the following formula (1).
| 25.1-25.0 | = 0.1
| 35.0-25.0 | = 10.0
| 40.0-25.0 | = 15.0 (1)
| 43.0-25.0 | = 18.0
| 42.0-25.0 | = 17.0

The comfort level function calculation unit 23 obtains an approximate function for the calculated value of Expression (1). Specifically, for example, the following equation (2), which is a cubic polynomial with respect to time, is obtained by the method of least squares. In Equation (2), t is a time corresponding to the date and time in the weather prediction information, the unit of t is time (hour), and the value of t is 0 or more. The comfort level function calculation unit 23 calculates the reciprocal number of Equation (2) as the comfort level function.
f (t) = 4.8t ³ −34.4t ² + 46.5t + 0.17 (2)

  Similarly, the comfort level function calculation unit 23 calculates the comfort level function by obtaining an approximate function related to “ΔΔ motor pool” and taking the reciprocal of the approximate function. In addition, the comfort level function calculation unit 23 calculates the comfort level function by obtaining an approximate function related to “□□ front parking lot” and taking the reciprocal of the approximate function. The comfort level function calculation unit 23 outputs information indicating the comfort level function for each guidance target parking lot to the output information transmission unit 24.

  Next, in step ST37, the output information transmitting unit 24 transmits the output information. The output information includes the information shown in FIG. 11 output by the parking lot search unit 20 in step ST33 and the information indicating the comfort function calculated by the comfort function calculation unit 23 in step ST36. It is linked with information indicating the position. The association is performed by the output information transmission unit 24.

Next, operations of the output information receiving unit 25, the output control unit 26, and the sort control unit 27 of the information terminal device 2 will be described with reference to a part III surrounded by a solid line in the flowchart of FIG.
First, in step ST41, the output information receiving unit 25 receives the output information transmitted by the output information transmitting unit 24 in step ST37 of FIG. The output information receiving unit 25 outputs the received output information to the output control unit 26.

  Next, in step ST42, the output control unit 26 uses the output information received by the output information receiving unit 25 in step ST41 to generate image data that guides various information related to each guidance target parking lot, The image data is displayed on the display device 3 as an image. At this time, the output control unit 26 causes the display device 3 to display a screen including a characteristic diagram showing the comfort function of each guidance target parking lot.

  FIG. 14 shows an example of a guidance screen displayed on the display device 3. In the display area A that occupies the left half of the display screen, a map image generated using map data shows a triangular icon image indicating the current position of the host vehicle 1 and the position of each guidance target parking lot. A screen in which the icon images of “P1”, “P2”, and “P3” are superimposed is displayed.

  In the display areas B1 to B3 adjacent to the right of the display area A, information related to the guidance target parking lots P1 to P3 is displayed. Specifically, for each guidance target parking lot, information indicating a name, a direction viewed from the host vehicle 1, a straight distance from the current position of the host vehicle 1, a fee, and an estimated arrival time is displayed.

  Moreover, the characteristic view which shows the comfort function of each guidance object parking lot is displayed on display area B1-B3. In these characteristic diagrams, the characteristic line is not displayed in the time interval in which the value of the comfort function is infinite. Also, a time interval in which the value of the comfort function is less than 0 is regarded as a time interval in which the value of the comfort function is infinite, and the characteristic line is not displayed.

  Next, in step ST43, the sort control unit 27 determines whether or not the operation of the operation input device 5 is instructed to rearrange the display areas B1 to B3 including the characteristic diagram. That is, in the display area C adjacent to the display area B1, the button a for instructing the rearrangement of the display areas B1 to B3 is displayed. When the button a is pressed by the operation input device 5 (step ST43 “YES”), as shown in FIG. 14, menus b1 to b3 for selecting in which order the display areas B1 to B3 are rearranged are so-called “ It is displayed in the “pull-down menu” format.

  Next, in step ST <b> 44, the sort control unit 27 determines whether or not rearrangement in order of comfort level is instructed by the operation of the operation input device 5. That is, when the menus b1 and b2 are selected by the operation of the operation input device 5 (step ST44 “NO”), then, in step ST45, the sort control unit 27 is in order from the current position of the host vehicle 1 or The display areas B1 to B3 are rearranged in ascending order of charge.

  On the other hand, when the menu b3 is selected by the operation of the operation input device 5 (step ST44 “YES”), the sort control unit 27 rearranges the display areas B1 to B3 in descending order of the comfort function value.

  Here, a circular cursor c is displayed so as to be superimposed on the characteristic line of at least one of the display areas B1 to B3. The cursor c is movable along the characteristic line according to the operation of the operation input device 5. When the menu b3 is selected (step ST44 “YES”), the sort control unit 27 calculates the time corresponding to the position of the cursor c for each guidance target parking lot and the value of the comfort function at that time. (Step ST46), the display areas B1 to B3 are rearranged in descending order of the calculated values (Step ST47). For example, when the display areas B1 to B3 are rearranged in descending order of the comfort function value 3 hours after the estimated arrival time at each guidance target parking lot, the result is as shown in FIG.

  The comfort index may be any index as long as the user can feel pleasant or uncomfortable according to the value of the index, and is not limited to the temperature in the passenger compartment. Hereinafter, an example using different indexes will be described.

  First, the comfort index may be the amount of yellow sand or pollen scattering or the amount of snow in the parking lot. In this case, the comfort level information generation unit 12 generates comfort level information indicating an increase in weight every predetermined time (for example, 15 minutes) from the parking start time using a weight scale (not shown) provided in the host vehicle 1. . This increase amount corresponds to the amount of yellow sand, pollen or snow accumulated in the host vehicle 1.

  The weather history information included in the environment information is information indicating the temperature, weather, humidity, and wind speed of the area. An example of the environmental information stored in the environmental information database 16 is shown in FIG. Similarly, the weather prediction information acquired by the weather prediction information acquisition unit 21 from the weather information database 71 is also information indicating the temperature, weather, humidity, and wind speed of the area. An example of the weather prediction information acquired by the weather prediction information acquisition unit 21 is shown in FIG.

  In addition, the search information transmitted by the search information transmitting unit 18 does not include a reference value, but includes only position information.

  The operation of the environment information search unit 22 differs in part of the third search process from the case where the comfort index is the temperature in the passenger compartment. In the third search process, the environment information search unit 22 determines that the difference in date and time between the temperature, weather, humidity, and wind speed of each record in FIG. 16 and the record in the weather prediction information shown in FIG. Compare the temperature, weather, humidity, and wind speed of the weather forecast information. At this time, the wind speed is searched for a difference within a predetermined range (for example, within ± 3 meters per second (m / s)). For example, when the guidance target parking lot is shown in FIG. 18, the environmental information of all records 01 to 05 is included in the result of the third search process for “XX first parking lot”.

The operation of the comfort level function calculation unit 23 is as follows. The result of the fourth search process related to “XXX first parking lot” by the environment information search unit 22 includes the environment information of records 01 to 05 shown in FIG. 16. The comfort level function calculation unit 23 calculates the absolute value of the comfort level information in each of the records 01 to 05 as in the following formula (3).
| 0 | = 0
| 200 | = 200
| 250 | = 250 (3)
| 270 | = 270
| 280 | = 280

The comfort level function calculation unit 23 obtains an approximate function for the calculated value of Expression (3). Specifically, for example, the approximate function is a logarithmic function, the coefficient of the logarithmic function is determined by the calculated value of the formula (3), and the following formula (4) is obtained. In Equation (4), t is a time corresponding to the date and time in the weather forecast information, the unit of t is time (hour), and the value of t is 0 or more. The comfort level function calculation unit 23 calculates the reciprocal number of Equation (4) as the comfort level function.
f (t) = 58.624ln (t) +284.69 (4)

  Similarly, the comfort index may be the amount of volcanic ash scattered.

  Alternatively, the comfort index may be rainfall in the parking lot. In this case, the comfort level information generation unit 12 uses the rain gauge (not shown) provided in the host vehicle 1 to obtain the comfort level information indicating precipitation per unit time (1 hour) per unit area (for example, 1 square meter). Generate.

  The weather history information included in the environment information is information indicating the temperature, weather, humidity, and wind speed of the area. An example of the environment information stored in the environment information database 16 is shown in FIG. Similarly, the weather prediction information acquired by the weather prediction information acquisition unit 21 from the weather information database 71 is also information indicating the temperature, weather, humidity, and wind speed of the area. An example of the weather prediction information acquired by the weather prediction information acquisition unit 21 is shown in FIG.

  In addition, the search information transmitted by the search information transmitting unit 18 does not include a reference value, but includes only position information.

  The operation of the environment information search unit 22 is the same as when the comfort index is the amount of yellow sand or pollen scattering or the amount of snow. For example, when a guidance object parking lot is what is shown in FIG. 21, the environmental information of all the records 01-05 is included in the result of a 1st search process-a 4th search process about all the guidance object parking lots.

The operation of the comfort level function calculation unit 23 is as follows. The result of the fourth search process related to “XXX first parking lot” by the environment information search unit 22 includes the environment information of records 01 to 05 shown in FIG. The comfort level function calculating unit 23 calculates the absolute value of the comfort level information in each of the records 01 to 05 as in the following equation (5).
| 22 | = 22
| 25 | = 25
| 26 | = 26 (5)
| 24 | = 24
| 20 | = 20

The comfort level function calculation unit 23 obtains an approximate function for the calculated value of Expression (5). Specifically, for example, the following equation (6), which is a cubic polynomial with respect to time, is obtained by the method of least squares. In Equation (6), t is a time corresponding to the date and time in the weather prediction information, the unit of t is time (hour), and the value of t is 0 or more. The comfort level function calculation unit 23 calculates the reciprocal of Equation (6) as the comfort level function.
f (t) = (3 × 10 ⁻¹⁴ ) t ³ −1.2143t ² + 4.3571t + 21.971
(6)

  In each of the above examples, the approximate function is obtained as a cubic polynomial or logarithmic function, but the approximate function is not limited to these. Any approximate function such as an nth-order polynomial (n is an integer of 1 or more), an exponential function, or a logarithmic function is obtained according to the comfort index, the amount of environmental information data, or the processing capability of the server device 6. Also good.

  Alternatively, the comfort index may be a congestion degree of a vehicle around the parking lot. In this case, the comfort level information generation unit 12 detects the number of vehicles passing through the road along the parking lot per unit time using a sensor or a camera (not shown) provided in the host vehicle 1 and Detect the number of large vehicles. The comfort level information generation unit 12 calculates the value of the congestion level or the change amount of the congestion level per unit time using these detection results, and generates the comfort level information indicating this value.

  The weather history information included in the environmental information is information indicating the temperature, weather, and wind speed of the area. Similarly, the weather prediction information acquired from the weather information database 71 by the weather prediction information acquisition unit 21 is also information indicating the temperature, weather, and wind speed of the area.

  The search information transmitted by the search information transmitting unit 18 does not include a reference value but includes only position information. The comfort level function calculation unit 23 calculates the absolute value of the congestion level indicated by the environment information, and calculates an approximate function of the calculated value. In the case of the change amount, the comfort level function calculation unit 23 obtains the degree of congestion using the previous value and then takes the absolute value and calculates an approximate function of the absolute value.

  Alternatively, the comfort index may be a congestion level of pedestrians around the parking lot. In this case, the comfort level information generation unit 12 detects the number of pedestrians passing through the road along the parking lot per unit time using a sensor or a camera (not shown) provided in the host vehicle 1. The comfort level information generation unit 12 calculates the value of the congestion level or the change amount of the congestion level per unit time using these detection results, and generates the comfort level information indicating this value.

  The weather history information included in the environmental information is information indicating the temperature, weather, humidity, atmospheric pressure, and wind speed of the area. Similarly, the weather prediction information acquired by the weather prediction information acquisition unit 21 from the weather information database 71 is also information indicating the temperature, weather, humidity, atmospheric pressure, and wind speed of the area.

  The search information transmitted by the search information transmitting unit 18 does not include a reference value but includes only position information. The comfort level function calculation unit 23 calculates the absolute value of the congestion level indicated by the environment information, and calculates an approximate function of the calculated value. In the case of the change amount, the comfort level function calculation unit 23 obtains the degree of congestion using the previous value and then takes the absolute value and calculates an approximate function of the absolute value.

  Alternatively, the comfort index may be the degree of congestion in the parking lot. In this case, the comfort level information generation unit 12 acquires information indicating the number of parked cars in the parking lot at the current time from the parking lot side, and generates comfort level information indicating the number of parked cars or the amount of change. Alternatively, the comfort level information generation unit 12 does not generate comfort level information, and the environment information generation unit 15 uses information on the number of parked vehicles stored in the parking lot information database 81 as comfort level information.

  The weather history information included in the environmental information is information indicating the temperature, weather, and wind speed of the area. Similarly, the weather prediction information acquired from the weather information database 71 by the weather prediction information acquisition unit 21 is also information indicating the temperature, weather, and wind speed of the area.

  The search information transmitted by the search information transmitting unit 18 does not include a reference value but includes only position information. The comfort level function calculation unit 23 divides the value of the number of parked vehicles indicated by the environment information by the value of the area of the parking lot, and calculates an approximate function of the absolute value of the divided value. In the case of the amount of change, the comfort level function calculation unit 23 obtains the number of parked cars using the previous value and divides by the area of the parking lot. Information indicating the area of the parking lot is stored in the parking lot information database 81.

  Alternatively, the comfort index may be the brightness of the passenger compartment. In this case, the comfort level information generation unit 12 calculates the value of the illuminance in the passenger compartment or the amount of change in illuminance using an illuminance sensor (not shown) provided in the host vehicle 1, and the comfort level information indicating this value is calculated. Generate.

  The weather history information included in the environmental information is information indicating the temperature, weather, humidity, atmospheric pressure, and wind speed of the area. Similarly, the weather prediction information acquired by the weather prediction information acquisition unit 21 from the weather information database 71 is also information indicating the temperature, weather, humidity, atmospheric pressure, and wind speed of the area.

  The search information transmitted by the search information transmitting unit 18 includes a reference value. The reference value in this case is, for example, an illuminance value detected by the illuminance sensor at the start of parking, a normal illuminance value in the daytime, or a value set in advance by the user. The comfort level function calculation unit 23 calculates an absolute value of a difference value between the illuminance value indicated by the environment information and the reference value, and calculates an approximation function of the absolute value. In the case of the change amount, the comfort function calculation unit 23 obtains the illuminance using the previous value, then takes the absolute value of the difference value from the reference value, and calculates an approximation function of this absolute value.

  Alternatively, the comfort index may be the temperature of the vehicle body or the window glass. In this case, the comfort level information generation unit 12 calculates the value of the temperature of the vehicle body or the window glass or the value of the change in temperature using a thermometer (not shown) provided in the host vehicle 1, and the comfort level indicating this value. Generate information.

  The weather history information included in the environmental information is information indicating the temperature, weather, humidity, atmospheric pressure, and wind speed of the area. Similarly, the weather prediction information acquired by the weather prediction information acquisition unit 21 from the weather information database 71 is also information indicating the temperature, weather, humidity, atmospheric pressure, and wind speed of the area.

  The search information transmitted by the search information transmitting unit 18 includes a reference value. The reference value in this case is, for example, a room temperature (25 ° C.), a set temperature for air conditioning, a value indicating the temperature of the vehicle body or window glass at the start of parking, or a value set in advance by the user. The comfort function calculation unit 23 calculates an absolute value of a difference value between the temperature value indicated by the environment information and the reference value, and calculates an approximation function of the absolute value. In the case of the change amount, the comfort function calculation unit 23 obtains the temperature using the previous value, then takes the absolute value of the difference value from the reference value, and calculates an approximation function of this absolute value.

  In the above examples, the comfort function is calculated for each parking lot. However, the comfort function may be calculated for each parking position in the parking lot. Moreover, on the guidance screen displayed on the display device 3 by the output control unit 26, a characteristic diagram of the comfort function may be displayed for each parking position. Thereby, for example, in a parking lot having a large area, or a parking lot in which a parking position having a roof and a parking position having no roof are mixed, the guidance accuracy of the comfort level can be improved. Furthermore, by adding the positional information to the longitude and latitude coordinate values and indicating the height, it is possible to improve the guidance accuracy of the comfort level in the multilevel parking lot.

  Further, the parking lot search unit 20, the weather prediction information acquisition unit 21, the environment information search unit 22, and the comfort level function calculation unit 23 may be provided in the information terminal device 2 instead of the server device 6. A block diagram in this case is shown in FIG. In this case, the search information transmitting unit 18, the search information receiving unit 19, the output information transmitting unit 24, and the output information receiving unit 25 shown in FIG. 1 are unnecessary.

  Further, in the system configuration shown in FIG. 1 or FIG. 22, the weather information database 71 and the parking lot information database 81 may be provided in the server device 6. Thereby, the 1st external server apparatus 7 and the 2nd external server apparatus 8 can be made unnecessary, and the system structure of the parking lot information guidance system 100 can be simplified.

  Further, the operation input device 5 is not limited to a touch panel, and may be a physical button provided adjacent to the display device 3, for example. The audio output device 4 is not limited to a speaker, and may be a headphone or an earphone.

  Further, the parking lot information guidance system 100 of the first embodiment can be used not only for automobiles but also for bicycles or motorcycles, particularly when the comfort index is set to the degree of congestion or the degree of congestion. In other words, the meaning of the term “vehicle” described in the claims of the present application is not limited to a four-wheeled vehicle, and at least a two-wheeled, three-wheeled or four-wheeled vehicle and a two-wheeled, three-wheeled or four-wheeled vehicle. Includes bicycles such as wheels. The meaning of the term “parking lot” described in the claims of the present application is not limited to a parking lot for a four-wheeled vehicle, but includes a parking lot for a two-wheeled vehicle, so-called “bicycle parking”. It is a waste.

  As described above, the parking lot information guidance system 100 according to the first embodiment calculates the comfort function function unit 23 that calculates a comfort function that is a function of the comfort level with respect to the parking time for each parking position in the parking lot or the parking lot. And an output control unit 26 that causes the display device 3 to display a parking lot or parking position guidance screen generated using the comfort function. By displaying the guidance screen generated using the comfort level function, it is possible to guide information related to the temporal change in the comfort level. Thereby, it is possible to guide information indicating the comfort of the vehicle or the parking lot at each parking time to a user who has not decided the time to return to the parked vehicle.

  Moreover, the output control part 26 displays the guidance screen containing the characteristic view which shows the comfort level function of each parking lot or parking position. The parking lot information guidance system 100 includes a sort control unit 27 that rearranges a plurality of characteristic diagrams included in the guidance screen by an operation input to the operation input device 5. By displaying the guidance screen including the characteristic diagram of the comfort level function, it is possible to display the temporal change in the comfort level of each parking lot in an easily understandable manner.

  Further, the output control unit 26 displays a cursor that can be moved along the characteristic line by operating the operation input device 5 so as to be superimposed on the characteristic line of the characteristic diagram, and the sort control unit 27 is provided for each parking lot or parking position. Then, the value of the comfort function at the time corresponding to the position of the cursor is calculated, and the characteristic diagrams are rearranged in descending order of the calculated value. Thereby, the comparative examination of the parking lot based on the time change of a comfort level can be made easy.

  Moreover, the information terminal device 2 of Embodiment 1 is the information terminal device 2 that is mounted on or brought into the vehicle, and is a comfort level that is a function of the comfort level with respect to the parking time for each parking position in the parking lot or the parking lot. A comfort level function calculation unit 23 that calculates a function, and an output control unit 26 that displays a parking lot or parking position guide screen generated using the comfort level function on the display device 3 are provided. Such an information terminal device 2 can realize a parking lot information guidance system 100 as shown in FIG.

Embodiment 2. FIG.
FIG. 23 is an explanatory diagram combining a system configuration diagram of the parking lot information guidance system according to Embodiment 2 of the present invention and a functional block diagram showing the main parts of the information terminal device and the server device. With reference to FIG. 23, the parking lot information guidance system 100 of Embodiment 2 is demonstrated. In addition, the same code | symbol is attached | subjected to the block similar to the parking lot information guidance system 100 of Embodiment 1 shown in FIG. 1, and description is abbreviate | omitted.

  The output control unit 26 uses the output information received by the output information receiving unit 25 to generate image data that guides various types of information regarding each guidance target parking lot, and the image data is displayed on the display device 3 as an image. It is what is displayed.

  In the second embodiment, the output control unit 26 displays a screen in which an icon image indicating each guidance target parking lot is superimposed on a map image generated using map data stored in a storage device (not shown). It has become. Further, the output control unit 26 displays a slidable operation bar according to the operation of the operation input device 5, and the slide position of the operation bar is determined from the estimated arrival time at each guidance target parking lot. It corresponds to the elapsed time (parking time).

  The information terminal device 2 has an icon control unit 28 instead of the sort control unit 27 shown in FIG. When the operation bar is operated by operating the operation input device 5, the icon control unit 28 calculates the value of the comfort function at the time corresponding to the position of the operation bar for each guidance target parking lot, and sets the calculated value to the calculated value. Accordingly, the appearance of the icon image is changed.

  Specifically, for example, the icon control unit 28 changes the color of each icon image according to the value of the comfort function. That is, as shown in FIG. 24, when the comfort function value is 0, it is red, when it is 0.1, it is orange, when it is 0.2, green when it is 0.5, and when it is 1 or more, it is blue. Thus, the color is continuously changed along the color spectrum. In this way, the information terminal device 2 is configured.

  The operations of the stop determination unit 11, the comfort level information generation unit 12, and the comfort level information transmission unit 13 of the information terminal device 2 are the same as those described with reference to FIG. Description is omitted.

  Since the operations of the comfort level information receiving unit 14 and the environment information generating unit 15 of the server device 6 are the same as those described with reference to FIG. 7 in the first embodiment, illustration and description thereof are omitted.

  Since the operations of the search information generation unit 17 and the search information transmission unit 18 of the information terminal device 2 are the same as those described with reference to FIG. 9 in the first embodiment, illustration and description thereof are omitted.

  The operations of the search information receiving unit 19, the parking lot search unit 20, the weather prediction information acquisition unit 21, the environment information search unit 22, the comfort function calculation unit 23, and the output information transmission unit 24 of the server device 6 are described in the embodiment. 1 is the same as that described with reference to FIG.

Next, operations of the output information receiving unit 25, the output control unit 26, and the icon control unit 28 of the information terminal device 2 will be described with reference to the flowchart of FIG.
First, in step ST51, the output information receiving unit 25 receives the output information transmitted by the output information transmitting unit 24 in step ST37 of FIG. The output information receiving unit 25 outputs the received output information to the output control unit 26.

  Next, in step ST52, the output control unit 26 uses the output information received by the output information receiving unit 25 in step ST51 to generate image data that guides various information related to each guidance target parking lot, The image data is displayed on the display device 3 as an image. At this time, the output control unit 26 displays a screen in which an icon image indicating each guidance target parking lot is superimposed on the map image and displays an operation bar corresponding to the parking time.

  FIG. 26 shows an example of a guidance screen displayed on the display device 3. In the display area D occupying most of the display screen, a triangular icon image indicating the current position of the host vehicle 1 and a position of each guidance target parking lot are displayed on a map image generated using map data. A screen in which the icon images of “P1”, “P2”, and “P3” are superimposed is displayed. An operation bar d is displayed at the lower end of the display area D. The operation bar d is slidable in the left-right direction by operating the operation input device 5. The slide position of the operation bar d corresponds to the elapsed time (parking time) from the estimated arrival time at each guidance target parking lot.

  In the display areas E1 to E3 adjacent to the right of the display area D, information related to the guidance target parking lots P1 to P3 is displayed. Specifically, for each guidance target parking lot, information indicating a name, a direction viewed from the host vehicle 1, a straight distance from the current position of the host vehicle 1, a fee, and an estimated arrival time is displayed.

  Next, in step ST <b> 53, the icon control unit 28 determines whether or not the operation bar d is operated by the operation input device 5. When the operation bar d is operated (step ST53 “YES”), then, in step ST54, the icon control unit 28 calculates a time corresponding to the slide position of the operation bar d for each guidance target parking lot, The value of the comfort function at the time is calculated.

  Next, in step ST55, the icon control unit 28 changes the appearance of the icon images P1 to P3 according to the value of the comfort function calculated in step ST54. Specifically, for example, the color of the icon image is changed according to the example of FIG.

  For example, in the initial state in which the guidance screen is displayed, as shown in FIG. 26, the operation bar d indicates the estimated arrival time (that is, the parking time is 0 hour and 0 minutes) at each guidance target parking lot. It is assumed that the value of the comfort function of the guidance target parking lot is 1 or more. In this case, the icon images P1 to P3 are all displayed in blue.

  On the other hand, it is assumed that the operation bar d is operated and slid to a position two hours after the estimated arrival time at each guidance target parking lot as shown in FIG. At this time, the value of the comfort function of “XX first parking lot” is 0.2, the value of the comfort function of “△△ motor pool” is 0.5, and the comfort function of “□□ front parking lot” The value of is assumed to be 9. In this case, the icon image of P1 is displayed in yellow, the icon image of P2 is displayed in green, and the icon image of P3 is displayed in blue.

  When the comfort function value is infinite, the icon control unit 28 regards the comfort function value as 1 or more and displays the icon image in blue. Further, when the value of the comfort function is less than 0, the value can be regarded as infinite. Similarly, the icon control unit 28 regards the value of the comfort function as 1 or more and displays the icon image. Display in blue.

  While the operation bar d is sliding, the icon control unit 28 continuously changes the color of each icon image. When the operation bar d stops (step ST56 “YES”), the icon control unit 28 ends the process. When the process is finished, the color of the icon image indicating each parking lot is a color corresponding to the comfort level in the parking time pointed to by the operation bar d at the end.

  The appearance of the icon image that is changed by the icon control unit 28 is not limited to color. The icon control unit 28 may change the size, shape, pattern, blinking speed, transparency, saturation, thickness of the border line, etc. of the icon image instead of or in addition to the color of the icon image. It may be changed in combination.

  Further, the value of the comfort function corresponding to the change of the icon image is not limited to the value illustrated in FIG. As shown in FIG. 24, when an icon image having a particularly low comfort level (less than 1) has an appearance different from that of the remaining icon images, it becomes easy for the user to identify a parking lot having a low comfort level. It can fulfill the function of “filtering”.

  In addition, the parking lot information guidance system 100 according to the second embodiment can employ various modifications similar to those described in the first embodiment. That is, the parking lot information guidance system 100 may calculate a comfort function for each parking position instead of each parking lot and display an icon image for each parking position. In addition, the comfort index includes the temperature in the passenger compartment, the amount of yellow sand or pollen scattered or accumulated in the parking lot, the amount of volcanic ash scattered in the parking lot, the amount of rainfall in the parking lot, the degree of congestion of vehicles around the parking lot, the parking lot Any of the degree of congestion of the surrounding pedestrians, the degree of congestion in the parking lot, the brightness of the vehicle interior, the temperature of the vehicle body or the window glass, and the like may be used. Further, the parking lot search unit 20, the weather forecast information acquisition unit 21, the environment information search unit 22, and the comfort level function calculation unit 23 may be provided in the information terminal device 2 instead of the server device 6.

  The weather information database 71 and the parking lot information database 81 may be provided in the server device 6. The operation input device 5 is not limited to a touch panel, and the audio output device 4 is not limited to a speaker. The parking lot information guidance system 100 can also be used for vehicles other than four-wheeled vehicles.

  Moreover, in the parking lot information guidance system 100 of Embodiment 2, the sort control part 27 similar to Embodiment 1 may be provided so that the display areas E1 to E3 can be rearranged.

  As described above, the output control unit 26 of Embodiment 2 displays a guidance screen in which an icon image indicating each parking lot or parking position is superimposed on a map image. The parking lot information guidance system 100 includes an icon control unit 28 that changes the appearance of each icon image according to the value of the comfort function by an operation input to the operation input device 5. Thereby, the time change of the comfort level of each parking lot can be displayed in an easily understandable manner, and the comparison of the parking lots based on the time change of the comfort level can be facilitated.

  The output control unit 26 is slidable by the operation of the operation input device 5 and displays a guidance screen including an operation bar whose slide position corresponds to the parking time. The icon control unit 28 displays a parking lot or a parking lot. The value of the comfort function at the time corresponding to the slide position of the operation bar is calculated for each position, and the color of the icon image is changed according to the calculated value. With the operation bar, it is possible to realize a user interface that can be easily operated for the comparative study.

Embodiment 3 FIG.
FIG. 28 is an explanatory diagram combining a system configuration diagram of a parking lot information guidance system according to Embodiment 3 of the present invention and a functional block diagram showing main parts of the information terminal device and the server device. With reference to FIG. 28, the parking lot information guidance system 100 of Embodiment 3 is demonstrated. In addition, the same code | symbol is attached | subjected to the block similar to the parking lot information guidance system 100 of Embodiment 1 shown in FIG. 1, and description is abbreviate | omitted.

  The parking lot information guidance system 100 according to the first embodiment includes a temperature in a passenger compartment, an amount of yellow sand or pollen scattered or snowy in a parking lot, a volcanic ash scattering amount in a parking lot, a rainfall in a parking lot, and a vehicle around a parking lot. For each parking lot or for parking, based on one of the indicators of congestion, congestion of pedestrians around the parking lot, congestion in the parking lot, brightness in the passenger compartment, or the temperature of the car body or window glass The comfort function for each position was calculated.

  On the other hand, the parking lot information guidance system 100 of Embodiment 3 calculates a plurality of comfort level functions based on different indexes for each parking lot or each parking position. The information terminal device 2 has a comfort index setting unit 29 for setting which index based comfort function is used for generating the guidance screen by operating the operation input device 5.

  Further, the information terminal device 2 includes a comfort level function adding unit 30 that adds a comfort level function based on each set index when a plurality of indexes are set by the comfort level index setting unit 29. The comfort level function adding unit 30 outputs the added function to the output control unit 26, and sets the output control unit 26 to use the function for generating the guidance screen instead of the comfort level function indicated by the output information. To do. In this case, the output control unit 26 causes the display device 3 to display a guidance screen including a characteristic diagram of the function after the addition by the comfort function adding unit 30 instead of the comfort function indicated by the output information. Yes.

  Hereinafter, with respect to the operation of the parking lot information guidance system 100, for each guidance target parking lot, a comfort function based on the temperature in the passenger compartment, a comfort function based on the amount of yellow sand or pollen scattered in the parking lot or the amount of snow, and parking An example of calculating the comfort function based on the rainfall in the parking lot will be mainly described.

  The operations of the stop determination unit 11, the comfort level information generation unit 12, and the comfort level information transmission unit 13 of the information terminal device 2 are the same as those described in Embodiment 1 with reference to FIG. In step ST2, the comfort level information generating unit 12 generates comfort level information indicating the weight increase detected by the weight scale and the precipitation detected by the rain gauge in addition to the temperature in the passenger compartment detected by the thermometer. .

  The operations of the comfort level information receiving unit 14 and the environment information generating unit 15 of the server device 6 are the same as those described with reference to FIG. 7 in the first embodiment. In step ST12, the environment information generation unit 15 acquires weather history information indicating the wind speed in addition to the temperature, weather, humidity, and atmospheric pressure of the area. In step ST <b> 13, the environment information generation unit 15 obtains environment information in which comfort level information including information indicating temperature, weight increase, and precipitation received from the information terminal device 2 is associated with weather history information. It is generated and stored in the environment information database 16.

  FIG. 29 shows an example of environment information stored in the environment information database 16. As shown in FIG. 29, the environment information includes comfort level information indicating the temperature, weight increase, and precipitation in the passenger compartment, and weather history information indicating the temperature, weather, humidity, atmospheric pressure, and wind speed in the area. ing.

  The operations of the search information generating unit 17 and the search information transmitting unit 18 of the information terminal device 2 are the same as those described with reference to FIG. 9 in the first embodiment.

  The operations of the search information receiving unit 19, the parking lot search unit 20, the weather prediction information acquisition unit 21, the environment information search unit 22, the comfort function calculation unit 23, and the output information transmission unit 24 of the server device 6 are described in the embodiment. 1 is the same as that described with reference to FIG.

  FIG. 30 shows an example of information that the parking lot search unit 20 outputs to the output information transmission unit 24 in step ST33. FIG. 31 shows an example of weather prediction information acquired from the weather information database 71 by the weather prediction information acquisition unit 21 in step ST34. The weather prediction information is acquired so as to cover various data (all types of temperature, weather, humidity, pressure, and wind speed in the example of FIG. 31) corresponding to all the comfort index.

  In step ST <b> 35, the environment information search unit 22 executes a first search process to a fourth search process for each guidance target parking lot and for each comfort index. In the third embodiment, the environment information database 16 may be one in which comfort level information of each index and weather prediction information corresponding to all indices are stored together as shown in FIG. 29, or each index. Meteorological prediction information corresponding to may be stored separately for each index. The environment information search unit 22 may execute a search process on a database that stores weather prediction information corresponding to all the indicators together, or a database that stores weather prediction information separately for each indicator. A search process may be executed.

  In step ST36, the comfort function calculation unit 23 calculates a comfort function for each guidance target parking lot and for each comfort index. In this example, for the three parking lots subject to guidance, “1st parking lot”, “△△ motor pool”, and “□□ front parking lot”, “air temperature in the passenger compartment”, “scattering amount of yellow sand or pollen, or snow cover”, respectively. Three comfort functions based on the indexes of “volume” and “rainfall” are calculated.

  In step ST37, the output information transmitter 24 transmits the information shown in FIG. 30 and the information indicating the total nine comfort functions calculated by the comfort function calculator 23 in step ST36 as output information. . At this time, the output information transmitting unit 24 uses the information indicating the position of the guidance target parking lot to transmit the comfort level function in association with each guidance target parking lot.

Next, with reference to the flowchart of FIG. 32, about operation | movement of the output information receiving part 25 of the information terminal device 2, the output control part 26, the sort control part 27, the comfort index setting part 29, and the comfort function addition part 30 explain.
First, in step ST61, the output information receiving unit 25 receives the output information transmitted by the output information transmitting unit 24 in step ST37 of FIG. The output information receiving unit 25 outputs the received output information to the output control unit 26.

  Next, in step ST62, the output control unit 26 uses the output information received by the output information receiving unit 25 in step ST61 to generate image data that guides various information related to each guidance target parking lot, The image data is displayed on the display device 3 as an image. At this time, the output control unit 26 causes the display device 3 to display a screen including a characteristic diagram indicating a comfort level function based on any of the indicators related to each guidance target parking lot.

  FIG. 33 shows an example of a guidance screen displayed on the display device 3. The contents of the display area A occupying the left half of the display screen and the contents of the display areas B1 to B3 adjacent to the right of the display area A are the same as the example of the guidance screen shown in FIG. In the initial state, which characteristic map of the comfort function based on which index is displayed in the display areas B1 to B3 may be set in advance at the time of shipment of the information terminal device 2 or may be set by the user good. In the example of FIG. 33, a characteristic diagram of the comfort function based on the temperature in the passenger compartment is displayed.

  Next, in step ST63, the comfort index setting unit 29 determines whether or not an instruction to change the index of the characteristic diagram displayed in the display areas B1 to B3 is given by the operation of the operation input device 5. That is, in the display area C adjacent to the display area B1, in addition to the button a for instructing the rearrangement of the display areas B1 to B3, which index is used to display the characteristic diagram of the comfort function is set. A button e is displayed. When the button e is pressed by operating the operation input device 5, as shown in FIG. 33, menus f1 to f4 for selecting a comfort index and a menu g for determination are displayed in a so-called pull-down menu format.

  The user selects an arbitrary index by pressing the menus f1 to f4, and determines the selected index by pressing the menu g. For example, FIG. 33 shows a state in which the menu f1 is determined, and the determined menu f1 is displayed in a color different from the other menus f2 to f4 (dark black in the figure). When the menu f1 is pressed in this state, the menu f1 is deselected and becomes the same color as the other menus f2 to f4. Next, when any one of the menus f1 to f4 is pressed, the pressed menu is selected and displayed in a color different from the other menus (light black in the drawing). FIG. 34 shows an example of a state in which the menu f2 is selected. When the menu g is pressed in a state where at least one of the menus f1 to f3 or the menu f4 is selected (step ST63 “YES”), the selected index is determined.

  Next, in step ST64, the comfort index setting unit 29 determines whether or not a plurality of indexes are selected in step ST63. That is, when the menu g is pressed in a state where any one of the menus f1 to f3 is selected, the comfort index setting unit 29 determines that one index is selected (step ST64 “NO”). On the other hand, if the menu g is pressed in a state where any two or more of the menus f1 to f3 or the menu f4 is selected, it is determined that a plurality of indices are selected (step ST64 “YES”). .

  When one index is selected (step ST64 “NO”), then in step ST65, the comfort index setting unit 29 performs output control so as to display a characteristic diagram of the comfort function based on the selected index. The unit 26 is set. FIG. 35 shows an example of a screen in a state determined by selecting menu f2. FIG. 36 shows an example of a screen in which the characteristic diagram of the comfort function based on the index of the menu f2 is displayed in the display areas B1 to B3 after FIG.

  On the other hand, when a plurality of indices are selected (step ST64 “YES”), then in step ST66, the comfort index setting unit 29 adds the comfort function based on the selected indices. 30. In step ST66, the comfort level function adding unit 30 adds a comfort level function based on the selected index for each guidance target parking lot. The comfort level function adding unit 30 outputs information indicating the added function to the output control unit 26, and sets the output control unit 26 to display a characteristic diagram based on the function instead of the comfort level function. . In step ST67, the output control unit 26 displays the characteristic diagram of the function added by the comfort function adding unit 30. FIG. 37 shows an example of a screen in a state where all the menus f1 to f3 are selected and determined. FIG. 38 shows an example of a screen in which, after FIG. 37, a characteristic diagram of a function obtained by adding a comfort function based on the indices of menus f1 to f3 is displayed in display areas B1 to B3.

  When the comfort level function adding unit 30 adds the comfort level function, if there is a time interval in which the value of any comfort level function to be added is less than 0, the comfort level function in the time interval is included. Are assumed to be preset values (for example, a constant value of 10), and the values of the respective comfort function are added. This value is preferably set to a relatively large value relative to the value of the comfort function in other time intervals.

  In addition, when there is a time interval in which the value of any comfort function to be added is infinite, the value of the comfort function in the time interval is limited to a preset value (for example, 10). It is assumed that the value is adjusted so that the characteristic line of the time section is continuous with the characteristic line of another adjacent time region, and the value of each comfort function is added. This upper limit value is preferably set to a relatively large value relative to the value of the comfort function in other time intervals.

  Hereinafter, the processing contents of steps ST68 to ST72 by the sort control unit 27 are the same as ST43 to ST47 shown in FIG.

  In addition, the information terminal device 2 is good also as a structure which removed the comfort level function addition part 30 shown in FIG. In this case, when a plurality of indexes are selected, the comfort level index setting unit 29 displays the characteristic diagrams of the comfort level functions based on the respective indexes side by side for each guidance target parking lot. Set. Alternatively, the comfort index setting unit 29 sets the output control unit 26 to display a plurality of characteristic lines based on different indexes in the characteristic diagrams of the respective parking lots for guidance.

  In addition, the parking lot information guidance system 100 according to the third embodiment can employ various modifications similar to those described in the first embodiment. That is, the parking lot information guidance system 100 may calculate a comfort function for each parking position, not for each parking lot. In addition, the comfort index includes the temperature in the passenger compartment, the amount of yellow sand or pollen scattered or accumulated in the parking lot, the amount of volcanic ash scattered in the parking lot, the amount of rainfall in the parking lot, the degree of congestion of vehicles around the parking lot, the parking lot Any two or more of the degree of congestion of the surrounding pedestrians, the degree of congestion in the parking lot, the brightness of the passenger compartment, the temperature of the vehicle body or the window glass may be used. Further, the parking lot search unit 20, the weather forecast information acquisition unit 21, the environment information search unit 22, and the comfort level function calculation unit 23 may be provided in the information terminal device 2 instead of the server device 6.

  The weather information database 71 and the parking lot information database 81 may be provided in the server device 6. The operation input device 5 is not limited to a touch panel, and the audio output device 4 is not limited to a speaker. The parking lot information guidance system 100 can also be used for vehicles other than four-wheeled vehicles.

  As described above, the comfort function calculation unit 23 according to Embodiment 3 calculates a plurality of comfort functions based on different comfort index for each parking lot or parking position. The parking lot information guidance system 100 includes a comfort index setting unit 29 that sets, based on an operation input to the operation input device 5, which index is used to generate a comfort function based on the index. As a result, the user can arbitrarily select an index of comfort level, and can visually guide the change in comfort level over time based on the index.

  Moreover, the parking lot information guidance system 100 includes a comfort level function adding unit 30 that adds a comfort level function based on each set index when a plurality of indexes are set by the comfort level index setting unit 29. The output control unit 26 displays a guidance screen generated using the function added by the comfort function adding unit 30. Thereby, the time change of the comfort level based on the combination of a plurality of indices can be guided in an easily understandable manner.

Embodiment 4 FIG.
FIG. 39 is an explanatory diagram combining a system configuration diagram of the parking lot information guidance system according to the fourth embodiment of the present invention and a functional block diagram showing main parts of the information terminal device and the server device. With reference to FIG. 39, the parking lot information guidance system 100 of Embodiment 4 is demonstrated. The same blocks as those in the parking lot information guidance system 100 of the second embodiment shown in FIG. 23 or the parking lot information guidance system 100 of the third embodiment shown in FIG. .

  The parking lot information guidance system 100 according to the second embodiment includes an air temperature in the passenger compartment, an amount of yellow sand or pollen scattered or accumulated in the parking lot, an amount of volcanic ash scattered in the parking lot, a rainfall in the parking lot, and a vehicle around the parking lot. For each parking lot or for parking, based on one of the indicators of congestion, congestion of pedestrians around the parking lot, congestion in the parking lot, brightness in the passenger compartment, or the temperature of the car body or window glass The comfort function for each position was calculated.

  In contrast, the parking lot information guidance system 100 according to the fourth embodiment calculates a plurality of comfort level functions based on different indexes for each parking lot or each parking position. That is, the parking lot information guidance system 100 of the fourth embodiment is similar to the parking lot information guidance system 100 of the second embodiment, as shown in FIG. A degree function adding unit 30 is added.

  The operations of the stop determination unit 11, the comfort level information generation unit 12, and the comfort level information transmission unit 13 of the information terminal device 2 are the same as those in the third embodiment. The operations of the comfort level information receiving unit 14 and the environment information generating unit 15 of the server device 6 are the same as those in the third embodiment. The operations of the search information generation unit 17 and the search information transmission unit 18 of the information terminal device 2 are the same as those in the third embodiment. The operations of the search information receiving unit 19, the parking lot search unit 20, the weather prediction information acquisition unit 21, the environment information search unit 22, the comfort function calculation unit 23, and the output information transmission unit 24 of the server device 6 are described in the embodiment. Same as 3.

Next, with reference to the flowchart of FIG. 40, about operation | movement of the output information receiving part 25 of the information terminal device 2, the output control part 26, the icon control part 28, the comfort level parameter | index setting part 29, and the comfort level function addition part 30 explain.
First, in step ST81, the output information receiving unit 25 receives the output information transmitted by the output information transmitting unit 24 in step ST37 of FIG. The output information receiving unit 25 outputs the received output information to the output control unit 26.

  Next, in step ST82, the output control unit 26 uses the output information received by the output information receiving unit 25 in step ST81 to generate image data that guides various information related to each guidance target parking lot, The image data is displayed on the display device 3 as an image. At this time, the output control unit 26 displays a screen in which an icon image indicating each guidance target parking lot is superimposed on the map image and displays an operation bar corresponding to the parking time.

  FIG. 41 shows an example of a guidance screen displayed on the display device 3. In the display area D occupying most of the display screen, a triangular icon image indicating the current position of the host vehicle 1 and a position of each guidance target parking lot are displayed on a map image generated using map data. A screen in which the icon images of “P1”, “P2”, and “P3” are superimposed is displayed. An operation bar d is displayed at the lower end of the display area D. The operation bar d is slidable in the left-right direction by operating the operation input device 5. The slide position of the operation bar d corresponds to the elapsed time (parking time) from the estimated arrival time at each guidance target parking lot.

  Next, in step ST83, the comfort index setting unit 29 determines whether or not an instruction to change an index serving as a reference for the appearance of the icon images P1 to P3 is given by the operation of the operation input device 5. That is, on the upper end portion of the display area D, a button h for setting whether to change the appearance of the icon image according to the value of the comfort function based on which index is displayed. When the button h is pressed by operating the operation input device 5, as in the third embodiment, a menu for selecting an index of comfort and a menu for determining are displayed in a so-called pull-down menu format.

  The menu for selecting the comfort index (hereinafter referred to as “selection menu”) is the same as the menus f1 to f4 shown in FIG. 33, and the menu for determining the comfort index (hereinafter referred to as “determination menu”). .) Is the same as the menu g shown in FIG. That is, the user selects an arbitrary index by pressing the selection menu, and the selected selection menu is displayed in a different color from the other selection menus. When the determination menu is pressed while at least one selection menu is selected, the selected index is determined.

  Next, in step ST84, the comfort index setting unit 29 determines whether or not a plurality of indexes are selected in step ST83. If one index is selected (step ST84 “NO”), then in step ST85, the comfort index setting unit 29 changes the appearance of the icon image in accordance with the value of the comfort function of the selected index. The output control unit 26 is set so that

  On the other hand, when a plurality of indexes are selected (step ST84 “YES”), the comfort level index setting unit 29 instructs the comfort level function adding unit 30 to add the comfort level function based on the selected index. In step ST86, the comfort level function adding unit 30 adds a comfort level function based on the selected index for each guidance target parking lot. In step ST87, the comfort level function adding unit 30 outputs information indicating the added function to the output control unit 26, and the output control unit 26 is configured to change the appearance of the icon image according to the value of the function. Set.

  Thereafter, the processing contents of steps ST88 to ST91 by the icon control unit 28 are the same as ST53 to ST56 shown in FIG.

  In addition, the information terminal device 2 is good also as a structure which removed the comfort level function addition part 30 shown in FIG. In this case, when a plurality of indices are selected by the comfort index setting unit 29, for example, a plurality of icon images are displayed side by side for each guidance target map in the display area D, and the color of each icon image is changed. It changes according to the value of the comfort function of each different index. Alternatively, each icon image is divided into a plurality of areas in the display area D, and the color of each area is changed according to the value of the comfort function of different indices.

  In addition, the parking lot information guidance system 100 according to the fourth embodiment can employ various modifications similar to those described in the first embodiment. That is, the comfort function may be calculated for each parking position instead of for each parking lot. In addition, the comfort index includes the temperature in the passenger compartment, the amount of yellow sand or pollen scattered or accumulated in the parking lot, the amount of volcanic ash scattered in the parking lot, the amount of rainfall in the parking lot, the degree of congestion of vehicles around the parking lot, the parking lot Any two or more of the degree of congestion of the surrounding pedestrians, the degree of congestion in the parking lot, the brightness of the passenger compartment, the temperature of the vehicle body or the window glass may be used.

  Further, the parking lot search unit 20, the weather prediction information acquisition unit 21, the environment information search unit 22, and the comfort level function calculation unit 23 may be provided in the information terminal device 2 instead of the server device 6. The weather information database 71 and the parking lot information database 81 may be provided in the server device 6. The operation input device 5 is not limited to a touch panel, and the audio output device 4 is not limited to a speaker. The parking lot information guidance system 100 can also be used for vehicles other than four-wheeled vehicles.

  As described above, in the parking lot information guidance system 100 according to the fourth embodiment, the comfort level function calculation unit 23 calculates a plurality of comfort level functions based on different comfort level indexes for each parking lot or parking position. . The parking lot information guidance system 100 includes a comfort index setting unit 29 that sets, based on an operation input to the operation input device 5, which index is used to generate a comfort function based on the index. As a result, the user can arbitrarily select an index of comfort level, and can visually guide the change in comfort level over time based on the index.

  Moreover, the parking lot information guidance system 100 includes a comfort level function adding unit 30 that adds a comfort level function based on each set index when a plurality of indexes are set by the comfort level index setting unit 29. The output control unit 26 displays a guidance screen generated using the function added by the comfort function adding unit 30. Thereby, the time change of the comfort level based on a plurality of indices can be visually and easily guided.

  In the present invention, within the scope of the invention, any combination of the embodiments, or any modification of any component in each embodiment, or omission of any component in each embodiment is possible. .

  DESCRIPTION OF SYMBOLS 1 Own vehicle, 2 Information terminal device, 3 Display apparatus, 4 Sound output device, 5 Operation input device, 6 Server apparatus, 7 1st external server apparatus, 8 2nd external server apparatus, 10 Navigation function part, 11 Stop determination part , 12 Comfort level information generator, 13 Comfort level information transmitter, 14 Comfort level information receiver, 15 Environmental information generator, 16 Environmental information database, 17 Search information generator, 18 Search information transmitter, 19 Search Information receiving unit, 20 Parking lot search unit, 21 Weather forecast information acquisition unit, 22 Environmental information search unit, 23 Comfort function calculation unit, 24 Output information transmission unit, 25 Output information reception unit, 26 Output control unit, 27 Sort control unit, 28 Icon control unit, 29 Comfort index setting unit, 30 Comfort function addition unit, 40 Display, 41 Speaker, 42 Touch panel, 43 transmitter, 44 receiver, 45 memory, 46 processor, 47 processing circuit, 50 transmitter, 51 receiver, 52 second memory, 53 first memory, 54 processor, 55 processing circuit, 71 weather information database, 81 Parking information database, 100 parking information guide system.

Claims (12)

For each parking position in the parking lot or the parking lot, a comfort function calculation unit that calculates a comfort function that is a function of the comfort level with respect to the parking time;
An output control unit configured to display a guide screen of the parking lot or the parking position generated using the comfort function on a display device;
A parking lot information guidance system. The output control unit displays the guidance screen including a characteristic diagram showing the comfort function of each parking lot or the parking position,
The parking lot information guidance system according to claim 1, further comprising: a sort control unit that rearranges the plurality of characteristic diagrams included in the guidance screen by an operation input to the operation input device. The output control unit displays a cursor that is movable along the characteristic line by operating the operation input device, superimposed on the characteristic line of the characteristic diagram,
The sort control unit calculates a value of the comfort function at a time corresponding to the position of the cursor for each parking lot or the parking position, and rearranges the characteristic diagram in descending order of the calculated value. The parking lot information guidance system according to claim 2. The output control unit displays the guidance screen in which an icon image indicating each parking lot or the parking position is superimposed on a map image,
The parking lot information guidance system according to claim 1, further comprising: an icon control unit that changes an appearance of each icon image according to a value of the comfort function by an operation input to the operation input device. The output control unit is slidable by an operation input to the operation input device, and displays the guidance screen including an operation bar whose slide position corresponds to the parking time,
The icon control unit calculates a value of the comfort function at a time corresponding to the slide position of the operation bar for each parking lot or the parking position, and changes the color of the icon image according to the calculated value. The parking lot information guidance system according to claim 4. The comfort function calculation unit calculates a plurality of comfort functions based on different comfort indexes for each of the parking lot or the parking position,
The parking degree according to claim 1, further comprising: a comfort index setting unit configured to set which comfort index function based on which index is used to generate the guidance screen by an operation input to the operation input device. Parking information guide system. When a plurality of the indexes are set by the comfort index setting unit, a comfort function adding unit that adds the comfort function based on each set index for each parking lot or the parking position is provided. ,
The parking output information guidance system according to claim 6, wherein the output control unit displays the guidance screen generated using the function added by the comfort level function adding unit.   The comfort function calculation unit includes: a temperature in the passenger compartment, a dust or snowfall amount of yellow sand or pollen in the parking lot, a volcanic ash scattering amount in the parking lot, a rain amount in the parking lot, and a crowded vehicle around the parking lot. Calculating the comfort function based on at least one of the degree of congestion of pedestrians around the parking lot, the degree of congestion in the parking lot, the brightness of the passenger compartment, or the temperature of the vehicle body or the window glass. The parking lot information guidance system according to any one of claims 1 to 7, characterized in that: The comfort function calculation unit is provided in an information terminal device that is mounted on or carried in a vehicle, or a server device that is capable of wireless communication with the information terminal device,
The parking output information guidance system according to any one of claims 1 to 8, wherein the output control unit is provided in the information terminal device. The server device has an environment information database that stores and stores information generated by the information terminal device included in each of a plurality of vehicles.
The parking space information guidance system according to claim 9, wherein the comfort level function calculation unit calculates the comfort level function using information stored in the environment information database. An information terminal device mounted on or brought into a vehicle,
For each parking position in the parking lot or the parking lot, a comfort function calculation unit that calculates a comfort function that is a function of the comfort level with respect to the parking time;
An output control unit configured to display a guide screen of the parking lot or the parking position generated using the comfort function on a display device;
An information terminal device comprising: A computer installed or brought into the vehicle
For each parking position in the parking lot or the parking lot, a comfort function calculation unit that calculates a comfort function that is a function of the comfort level with respect to the parking time;
An output control unit configured to display a guide screen of the parking lot or the parking position generated using the comfort function on a display device;
Program to function as.

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