JP2001349740A - Parking lot guidance method and navigation device - Google Patents

Abstract

(57) [Summary] [Problem] Immediately display a parking lot according to a user's request in consideration of a business hours, a vehicle-specific regulation condition, a fee, and the like. SOLUTION: A map data reading means 102 reads data related to a parking lot, and a parking lot search means 108 searches a parking lot near a destination or a point inputted from the data. Parking lot extraction means 109
However, from among the parking lots, parking lots that are open on the current date, day and time, parking lots that meet the conditions of the vehicle width, height or type of car, parking lots with a low price per unit time Is extracted, and the parking lot weighting means 110 arranges the parking lots in ascending order or closer order and displays them on the display means 105. Further, the parking lot route search means 111 searches for and displays a route from the current position of the own vehicle to the parking lot.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation apparatus for displaying the current position of a car or the like together with a map, and more particularly to a navigation apparatus having a parking lot guide means for extracting and displaying a parking lot according to a user's request. .

[0002]

2. Description of the Related Art FIG. 4 shows an outline of a conventional on-vehicle navigation device. In FIG. 4, a direction sensor 1 detects a relative running direction of an automobile, and a vibration gyro or the like is used. The distance sensor 2 calculates a traveling distance based on a pulse generated according to the number of rotations of the wheel. The various sensor signals 3 are an ON / OFF signal of a parking switch, a power supply voltage monitoring signal, and the like. The sensor signal processing unit 4 processes sensor signals of the direction sensor 1, the distance sensor 2, and the like. GPS (Global Positioning System) receiver 5
Calculates the position (latitude, longitude) of a receiving point by receiving and calculating radio waves transmitted from a plurality of satellites. The CD-ROM drive 6 is a CD-R on which map data is recorded.
It reads map data from OM7, and recently, DVD-RO reads map data from DVD-ROM.
The M drive is frequently used. The display / operation unit 8
A liquid crystal display 8A for displaying a map, a current traveling position, an azimuth of the automobile, and the like, and a touch panel 8B provided on a front surface of the liquid crystal display 8A. The touch panel 8B is used to instruct the display map to be enlarged or reduced. A switch, a switch for instructing a route search, a switch for selecting a destination from the place names displayed on the liquid crystal display 8A, and moving a cursor displayed on the screen in an arbitrary direction and inputting a selected position on the screen. The cursor key 8C is provided. GPS receiver 5, C
The D-ROM drive 6 and the display / operation unit 8 are arranged on an instrument panel of the vehicle, and are connected to an apparatus main body 9 arranged in a trunk room of the vehicle by an in-vehicle LAN.

Next, the configuration of the apparatus main body 9 will be described. CPU (Central Processing Unit) 10 that performs various calculations
It operates according to a program stored in a program ROM (read only memory) 11. A DRAM (random-write memory 12 requiring a memory holding operation) 12
Direction sensor 1, distance sensor 2, GPS receiver 5, CD
-Store data from the ROM drive 6 and the like, calculation results in the CPU 10, and the like. An SRAM (randomly written and read memory that does not require a memory holding operation) 13 is a backup memory for holding necessary data even when power supply to the apparatus main body 9 is stopped. Kanji / Font R
The OM 14 is a memory in which patterns such as characters and symbols to be displayed on the liquid crystal display 8A are stored. The image processor 15 forms a display image based on map data, current position data of the vehicle, and the like. The VRAM 16 has a CP
The map data and current position data output from U10 and the kanji such as town names and road names output from the kanji / font ROM 14 are combined with fonts to form a liquid crystal display 8
A is a memory for storing an image to be displayed on A. The RGB conversion unit 17 converts the output data of the VRAM 16 into a color signal and outputs it to the liquid crystal display 8A. The communication interface 18 controls communication between the GPS receiver 5, the CD-ROM drive 6, the display / operation unit 8, and the device body 9.

FIG. 5 shows a format of data stored in the CD-ROM 7, and includes a disk label 21,
A drawing parameter 22, map management information 23, map (map data) 24, and the like are defined. The leaf 24 stores background data, character data, road data, and the like.
Data for each unit map obtained by dividing a topographic map of Japan by latitude and longitude is stored, and maps that broadly describe a wide area and maps that detail a narrow area are set. Each figure is composed of map display levels A, B, and C describing the same area, and B is described more in detail than A and C is described in more detail than B. Each of the map display levels A, B, and C is composed of map display level management information and a plurality of units. Each unit describes a divided area obtained by dividing each map display area into a plurality of areas. Each unit includes a unit header, a character / symbol layer, a background layer, a road layer, an option layer, and the like. The character / symbol layer records place names, road names, facility names, and the like displayed on the map, the background layer records data for drawing roads, facilities, and the like. As shown in Fig. 6, coordinate points (nodes) and lines (links) describing roads including intersections
Related data, for example, a node number of a node, a latitude and a longitude, a link number of a link, a link distance, and the like are stored. In FIG. 6, white circles (○) indicate nodes, and lines between the nodes indicate links. A black circle (丸) of the node number 4 indicates an intersection node. The data recorded in the road layer does not directly participate in the map display, but is used as road network information for map matching.

[0005] In FIG. 5, as the route search data 25, search data is recorded for each layer from layer 0 for a small area to layer n for a large area. The search data of each layer includes node connection data 26, route search evaluation value (link cost) data 27, route display data 28
It is composed of The node connection data 26 is data indicating to which other node each node is connected. The link cost data 27 is an evaluation value set for a link between the nodes, and the link cost is an evaluation value indicating an estimated passage time of the link. The route display data 28 records data for displaying the route selected by the route search on the display map.

Next, the operation of the navigation device configured as described above will be described. In FIG. 4, the output of the direction sensor 1 and the output of the distance sensor 2 are sent to the CPU 10 via the sensor processing unit 4. The CPU 10 calculates the current position of the vehicle, and obtains the latitude and longitude of the current position. The current position is corrected based on the data from the GPS receiver 5. The map data of the unit corresponding to the current position is obtained by the CD-ROM drive 6 based on the current position obtained in this manner.
7 and stored in the DRAM 12 via the communication interface 18. DRAM
A part of the map data stored in 12 is read by the CPU 10, converted into image data by the image processor 15, and written into the image memory 16. The image data stored in the image memory 16 is converted into color signals by the RGB conversion unit 17 and sent to the liquid crystal display 8A, where a map of a predetermined range centering on the current position is displayed. DRAM1
In the case where the map data read from Step 2 includes a character code or a symbol code, a pattern corresponding to the character code or the symbol code is read from the kanji / font ROM 14 and is displayed on the liquid crystal display 8A together with the map. Symbols such as letters and school are displayed. Further, the current position displayed on the liquid crystal display 8A is sequentially changed based on the traveling speed and the traveling azimuth sequentially obtained as the vehicle travels.

Next, the conventional route search processing will be described with reference to FIGS. As shown in FIG. 7, first, a destination is set in step S1. The setting of the destination is performed by operating the touch panel 8B, for example, by inputting the name and address of the destination, or by specifying a point on the map displayed on the liquid crystal display 8A. . Step S
In 2, it is determined whether to start a route search. This determination is made based on whether or not the route search switch on the touch panel 8B of the operation / display device 8 has been operated. Step S2
If it is determined that the route search switch has been operated, the process proceeds to step S3 where a route search is performed. In this route search, the link costs of all the routes from the starting point (current position node) to the destination node are added, and the route with the lowest link cost is selected. The route selected in step S3 is displayed, for example, in red on the map displayed on the liquid crystal display 8A in step S4.

FIG. 8 shows a step S of the route search in FIG.
3 is shown in further detail. In FIG. 8, first, in step S11, a departure node and a destination node closest to the departure and destination positions are selected. Next, step S12
Then, the route search data including the departure node is read from the CD-ROM 7, and a route search on the departure point side is performed in step S13. As described above, this route search selects a route with the lowest total link cost. Next, in step S14, it is determined whether the route searched in step S13 is connected to the destination node.
The distance from the departure point to the destination is relatively short, and step S
If the destination node is included in the data read from the CD-ROM 7 at 12, the determination is YES in step S14, but if the destination is far from the departure point,
No is determined in step S14, and the process proceeds to step S15. In step S15, route search data including the destination node is read from the CD-ROM 7, and in step S16, a route search on the destination side is performed. In step S17, it is determined whether or not the route selected by the route search on the destination side in step S16 is connected to the search route on the departure side. As a result, when it is determined as No, the search hierarchy is raised by one rank in step S18. Step S1
2. If the read data in step S15 is the route search data of layer 0, the rank is raised to layer 1 in step S18. Next, in step S19, the starting node and the destination node are reset, and the process returns to step S12.
If the answer is YES in step S14 or step S17, a route from the departure place to the destination is formed in step S20, route display data is created in step S20A, and this process ends. The route selected by the above route search process is displayed on the map displayed on the liquid crystal display 8A.

[0009] In recent navigation devices, search functions are extremely enhanced, and genres, names, addresses,
In addition to searching by telephone number or the like, destinations and facilities around an arbitrary point can be searched. FIG. 9 shows the details of the data format of the CD-ROM 7 storing the index data of these facilities. The index data 29 for facility search includes a table 30 for searching for a facility from the Japanese syllabary, a word list 31 for searching for a facility from words included in the name, and the facility name, type, latitude and longitude of each facility. , An administrative area code, parking lot information, and the like. By using the table 30, the facility can be searched from the input kana, and by using the word list 31, the facility can be searched from the input word, and the facility information list 33 is used privately. Thereby, the parking lot information 33 can be searched.

FIG. 10 shows a process for searching for a parking lot and searching for a route to the parking lot. In FIG.
In step S21, a target facility is set. The setting of the facility can be performed, for example, by designating the facility on the map displayed on the liquid crystal display 8A with the cursor 8C.
Alternatively, this is done by inputting the readings or words of the facility. When the destination is set by inputting the kana or word of the facility, the index data 29 recorded on the CD-ROM 7 is used. Step S22
Then, the parking lot information 33 of the facility information list 32 of the facility set in step S21 is read from the CD-ROM 7. In step S23, the presence or absence of a parking lot is determined from the parking lot information 33 acquired in step S21. If it is determined in step S23 that there is a parking lot, the process proceeds to step S34. If it is determined that there is no parking lot, the process proceeds to step S24. In step S24, a selection screen as to whether or not to select the parking lot approach guide is displayed on the liquid crystal display 8A. If "Yes" is selected on the selection screen with the cursor, the process proceeds to step S25, and a parking lot within a predetermined distance range around the destination is searched. Next step S
At 26, a list of searched parking lots is created, and a mark indicating the parking lot is displayed at the position of the searched parking lot on the map displayed on the liquid crystal display 8A. In the next step S27, when one of the parking lot marks is selected with the cursor 8C, the liquid crystal display 8A displays detailed data such as the name of the parking lot, business hours, the number of accommodations, and the usage fee. Next, in step S28, step S27
The parking lot selected in is set as the destination, and step S29
A route search to this destination is performed. Step S3
At 0, the parking lot selected in step S27 is set as a departure place, the facility set in step S21 is set as a destination, and a route search is performed in step S31. In step S32, the route searched in the route search in step S29 is displayed on the map displayed on the liquid crystal display 8A, and in step S33, from the parking lot searched in the route search in step S31 to the target facility. Is displayed on the map of the liquid crystal display 8A.

As described above, even in the conventional navigation apparatus, whether or not there is a parking lot around the destination is searched. If there is, a route from the destination to the parking lot as a departure point and its parking place are searched. Since a route from the departure point to the destination can be searched and displayed, extremely useful and convenient information can be provided for the user.

[0012]

However, in the above-mentioned conventional navigation device, it is possible to search for a parking lot around a destination and to search for a route to the parking lot. Must read the detailed information on the screen again to confirm whether the car is actually open at that date, whether the car model of the car can be parked, and whether the parking fee is appropriate. There was a problem that a parking lot could not be selected immediately.

The present invention is to solve such a conventional problem. In consideration of the business hours of the parking lot, the regulation conditions for each type of vehicle, the fee, and the like, the parking lot according to the user's request can be immediately established. It is an object of the present invention to provide a parking lot guidance method and a navigation device that can be displayed.

[0014]

In order to achieve the above object, a parking lot guidance method according to the present invention comprises the steps of: inputting a destination or a point; ), And retrieves a parking lot near the input destination or point based on the acquired parking lot data. If there is a parking lot, the parking lot is searched from among the parking lots. A parking lot that is open at a predetermined date and time is extracted and displayed. According to this method, the parking lot currently available can be immediately displayed, so that useful and practical parking lot information for the user can be provided.

The method for guiding a parking lot according to the present invention searches and displays a route to the extracted parking lot. According to this method, the method for guiding a parking lot extracted from a destination, a point, or a departure place to a parking lot is provided. Since the route can be displayed, it is possible to provide useful and practical parking information for the user.

Further, the parking lot guidance method of the present invention predicts the arrival time to the inputted destination or point, and extracts and displays the parking lot which is open at the estimated arrival time. Since it is determined whether the business is open at the time of arrival rather than the business at the present time, it is possible to provide useful and practical parking lot information for the user.

Further, the parking lot guidance method of the present invention is characterized in that congestion information and / or vacancy information of the parking lot is obtained by communication with the outside, and live information on the parking lot is obtained in real time. Can be done.

Further, the navigation device of the present invention includes a means for obtaining map data including parking lot data, a means for inputting a destination or a point, and a method for converting a parking lot near the input destination or point into the map. It is provided with a means for searching from data, a means for extracting a parking lot which is open at a predetermined date and time among the searched parking lots, and a means for displaying the extracted parking lot. With this configuration,
The currently available parking lot can be immediately displayed, and useful and practical parking lot information can be provided for the user.

Further, in the navigation apparatus according to the present invention, the means for extracting the parking lot extracts a parking lot which meets conditions of a vehicle width, a vehicle height or a vehicle type of the vehicle. With this configuration, it is possible to immediately display a parking lot that satisfies the vehicle type conditions of the own vehicle among the parking lots currently available, and to provide useful and practical parking information for the user. You can do it.

Further, the navigation device of the present invention is characterized in that the extracting means extracts a parking lot having the lowest price, and with this configuration, a parking lot which is currently available can be used. , You can instantly see the parking lot that meets your vehicle requirements and has the cheapest price,
It is possible to provide useful and practical parking information for the user.

Further, the navigation apparatus according to the present invention further comprises a means for displaying the plurality of parking lots in the order of proximity according to the distance from the destination or point when there are a plurality of the extracted parking lots. With this configuration, a parking lot as close as possible to the destination or point can be selected, and useful and practical parking lot information for the user can be provided.

Further, the navigation apparatus according to the present invention is provided with a means for displaying the plurality of parking lots in the order of cheaper price in accordance with the fee when there are a plurality of the extracted parking lots. It is possible to select a parking lot that is as cheap as possible, and to provide useful and practical parking lot information for the user.

Further, the navigation device of the present invention is provided with a means for searching for and displaying the route to the extracted parking lot. With this configuration, the vehicle stops at the parking lot, and after the vehicle is placed there, The user can go to the ground or point and can provide useful and practical route information for the user.

[0024] Further, the navigation device of the present invention includes a means for searching for a route to the input destination or point, a means for searching for a path to the extracted parking lot, and a means for searching for the destination or point. Means for switching which of the route to search for and the route to the parking lot. With this configuration, a normal destination route search mode is used at a destination or point that does not require a toll parking lot, and a parking lot route search mode is used at a destination or point that requires a toll parking lot. This makes it possible to provide useful and practical route information for the user.

[0025] The navigation device of the present invention is characterized in that when there is no parking lot near the inputted destination or point, a route to the destination or point is searched and displayed. With this configuration, when there is no parking lot, the route search mode can be automatically switched to the destination route search mode,
It is possible to provide useful and practical route information for the user.

The navigation device of the present invention further comprises means for estimating the arrival time to the input destination or point, and the extracting means comprises: It is characterized by extracting parking lots that are open to the public at this time, and this configuration determines whether or not it is open at the time of arrival, and whether it is open at the time of arrival. It is possible to provide comprehensive parking information.

Further, the navigation device of the present invention is provided with means for acquiring the map data through communication with the outside, and the acquiring means acquires congestion information and / or vacancy information of a parking lot. Therefore, live information on the parking lot can be obtained in real time.

Further, the present invention is a recording medium in which a program that realizes the above-mentioned parking lot guidance method by software is recorded, and the parking lot guidance program can be handled independently for a navigation device, and a normal navigation device is provided. By adding this parking lot guidance program to the user, useful and practical parking lot information for the user can be obtained.

[0029]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a navigation device according to an embodiment of the present invention. In FIG. 1, a control unit 101 including a microcomputer controls the entire apparatus according to a program stored in a memory (not shown). The map data reading means 102 is a driver in which road map data, parking lot data, and the like are recorded and read out from a storage medium such as a CD-ROM, a DVD-ROM, a semiconductor memory, and a hard disk. The current position detecting means 103 includes:
The current position of the vehicle is detected based on information from a GPS receiver or the like. The route searching means 104 includes the current position detecting means 10
Operation input means 1 based on the current position of the vehicle detected by
In step 06, a recommended route to the destination or point input is searched. The display means 105 is a map data reading means 1
02 and the current position detecting means 10
3. The current position of the own vehicle determined by step 3 and the route search means 10
4 is a liquid crystal display that displays a route searched by the user and displays information necessary for operation. The operation input unit 106 is a remote controller for inputting an arbitrary point including a destination and a facility and for selecting an item displayed on the display unit 105. The clock calendar means 107 measures and outputs the current date and time.

The parking lot search means 108 is provided by the operation input means 1
The parking lot near the destination or point inputted from 06 is searched from the map data read by the map data reading means 102. The parking lot extraction unit 109 includes a parking lot that is open on the current date, day of the week, and time among the searched parking lots, a parking lot that matches the conditions of the vehicle width, the vehicle height, and the vehicle type of the own vehicle. Extract parking lots with low hourly rates. When there are a plurality of extracted parking lots, the parking lot weighting means 110 displays the plurality of parking lots in a priority order according to a distance from a destination or a point, or displays a priority order according to a fee per unit time. Rank. The parking lot route searching means 111 searches for a route from the current position of the vehicle detected by the current position detecting means 103 to the selected parking lot, and displays the route on the display means 105. It is also used as route search means 104 for searching for a route to a ground or point. The search mode switching means 112 includes a parking lot route search mode for searching for a route from the current position of the vehicle to the parking lot, a destination route search mode for searching for a route from the current position of the vehicle to the destination or point. Switch. The arrival time estimating means 113 calculates the current time data obtained by the clock calendar means 107, the distance data from the current location to the destination or point read from the map data reading means 102, and the average hourly speed data. Predict the arrival time of. VICS (registered trademark) information receiving means 114 receives road traffic information from a road beacon or FM broadcast. The Internet connection means 115 acquires necessary map data, detailed information about the parking lot, congestion information and free space information from the server through the provider.

Next, the operation of this embodiment will be described. Since the basic operation of the navigation device is the same as that described in the section of the prior art, the operation relating to the parking lot guide which is the subject of the present invention will be described here. FIG. 2 shows a flow of a parking lot guidance process in the present embodiment. In FIG. 2, first, when the name of a destination or an arbitrary point is input from the operation input means 106 (step S101), the control means 101 reads data related to the parking lot from the map data reading means 102 and searches for the parking lot. (Step S10)
2). The parking lot search means 108 acquires parking lot data near the destination or point (including the destination and point itself) from the parking lot data (step S10).
3) It is determined whether or not there is a parking lot near the destination or point (step S104). If there is no parking lot, the process is terminated, or the process returns to step S101 to input another destination or point and repeat the process. If there is a parking lot, the parking lot extraction means 109 determines the current parking lot or the plurality of parking lots based on the data acquired by the clock calendar means 107 from the plurality of parking lots. The parking lot that is open on the date, day of the week, and time is extracted (step S105), and it is determined whether there is a corresponding parking lot (step S106). If there is no corresponding parking lot, the process is ended, or the process returns to step S101 to input another destination or point and repeat the process. If there is a corresponding parking lot, the parking lot extracting means 109 then determines the width of the vehicle in the parking lot,
A parking lot that matches the conditions of the vehicle height and the vehicle type is extracted (step S107), and it is determined whether there is a corresponding parking lot (step S108). If there is no corresponding parking lot, the process is ended, or the process returns to step S101 to input another destination or point and repeat the process. If there is a corresponding parking lot, the parking lot extracting unit 109 extracts a parking lot with a low fee per unit time from the parking lot, and the parking lot weighting unit 110 makes the parking lot cheap. It is displayed on the display means in order (Step S10
9) Further, according to the user's selection, the parking lots are arranged and displayed in an order close to the destination or point (step S1).
10). When the user selects a favorite parking lot from the displayed parking lots (step S111), the parking lot route searching means 111 moves from the current position of the own vehicle detected by the current position detecting means 103 to the parking lot. The route is searched for and displayed, and the process ends (step S112). The route search method is the same as the method described in the section of the related art.

In the above-described processing, when a parking lot is located near a destination or point and a desired parking lot is selected, the route to the parking lot is displayed uniformly. The search mode switching unit 112 can switch between the route to the parking lot and the route to the parking lot. This is to make it possible to perform a route search to a normal destination or point when a parking lot search is not performed. FIG. 3 shows a search mode switching process according to the present embodiment. The control unit 101 determines whether the search mode switching unit 112 is in the destination route search mode or the parking lot route search mode (step S201). If the search mode switching unit 112 is in the destination route search mode, Perform destination route search as before,
If it is in the parking lot route search mode, it is determined whether there is a desired parking lot near the destination or point (step S202), and if not, step S202.
Then, a destination route search is performed in the same manner as in the related art, and only when there is a parking lot according to the request, a route from the current position of the own vehicle to the parking lot is searched and displayed (step S204). .

Further, in the processing of FIG.
Although the process of extracting parking lots that are open on the current date, day of the week, and time is performed in step 5, even if they are open at this time, it is not known whether they are open at the time of arrival.
After the processing in step S105, the arrival time prediction means 113
Thus, the arrival time to the parking lot is predicted based on the current time data obtained by the clock calendar means 107, the distance data from the current position to the destination or the point read from the map data reading means 102, and the average speed data. Then, the parking lot extraction means 109 may determine whether the parking lot is open at the expected arrival time and extract only the parking lot that is open. that time,
The determination may be made by adding the traffic jam information received by the VICS information receiving means 114. In addition, it is preferable to refer to the free space information and congestion information of the parking lot at that time received through the Internet connection means 115.

As described above, according to the present embodiment, the destination or the point is input from the operation input means 106, the map data reading means 102 reads out the data on the parking lot, and the parking lot search means 108 Searches for a parking lot near the destination or point input from, and if there is a parking lot, the parking lot extracting means 109 selects a parking lot that is open on the current date, day of the week, and time from the parking lot. Extract the parking lot, and furthermore, the width of the car in the parking lot,
A parking lot that meets the conditions of the vehicle height and the type of car is extracted, a parking lot with a low fee per unit time is extracted from the parking lots, and the parking lot weighting means 110 sorts the parking lots in ascending order. Since the information is displayed on the display means or the parking lots are arranged and displayed in an order close to the destination or point, the user can immediately select a favorite parking lot from the displayed parking lots, and Since the parking lot route searching means 111 searches and displays a route from the current position of the own vehicle detected by the current position detecting means 103 to the parking lot, first stop at the parking lot, place the vehicle, and Or you can go to the point.

[0035]

As described above, according to the parking lot guidance method of the present invention, a destination or point is input, parking data near the input destination or point is acquired, and the acquired parking lot data is Based on the input, a search is made for a parking lot near the destination or point, and if there is a parking lot, a parking lot that is open at a predetermined date and time is extracted from the parking lot. From among the parking lots, the parking lots that match the conditions of the vehicle width, height or model of the car are extracted, and the parking lots with the lowest rates are extracted and displayed from the parking lots in ascending order. Since the route to the route is searched for and displayed, the parking lot currently available can be immediately displayed, and useful and practical parking lot information for the user can be provided.

Further, the navigation device of the present invention includes a means for acquiring map data including parking lot data, a means for inputting a destination or a point, and a method for converting a parking lot near the input destination or point from the map data. Means for searching, extracting parking lots that are open at a predetermined date and time from the searched parking lots, further extracting parking lots that match the conditions of the width, height or type of the own vehicle, and further Means for extracting the cheapest parking lot, and means for prioritizing and displaying the extracted parking lot according to the distance from the destination or point or according to the fee. It is provided with a means for searching for and displaying a route, and a parking lot that is currently available can be immediately displayed, so that useful and practical parking lot information for the user can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a navigation device according to an embodiment of the present invention.

FIG. 2 is a flowchart of a parking lot guidance process according to the embodiment of the present invention.

FIG. 3 is a flowchart of a search mode switching process according to the embodiment of the present invention.

FIG. 4 is a block diagram of a conventional navigation device.

FIG. 5 shows a conventional example of a CD-R storing map data.
OM data format diagram

FIG. 6 is a schematic diagram of road data on map data in a conventional example.

FIG. 7 is a flowchart of a destination setting process in a conventional example.

FIG. 8 is a flowchart of a route search process in a conventional example.

FIG. 9 shows a conventional example of a CD-R storing map data.
OM data format diagram

FIG. 10 is a flowchart of a route search process in a conventional example.

[Explanation of symbols]

 101 control means 102 map data reading means 103 current position detection means 104 route search means 105 display means 106 operation input means 107 clock calendar means 108 parking lot search means 109 parking lot extraction means 110 parking lot weighting means 111 parking lot route search means 112 Search mode switching means 113 Arrival time estimation means 114 VICS information receiving means 115 Internet connection means

Continued on the front page F-term (reference) 2C032 HB02 HB06 HB08 HB22 HB23 HB24 HB25 HC14 HC22 HC27 HD03 HD16 2F029 AA02 AB07 AB13 AC02 AC06 AC09 AC14 AC19 5H180 AA01 BB13 BB15 EE02 EE10 FF05 FF13 FF13 FF13 FF33 FF33 FF22

Claims (15)

[Claims] 1. A destination or point is input, parking data near the input destination or point is acquired, and parking at or near the input destination or point is acquired based on the acquired parking data. A parking lot guidance method for searching for a parking lot and, if there is a parking lot, extracting and displaying a parking lot that is open at a predetermined date and time from the parking lot. 2. The parking lot guidance method according to claim 1, wherein a route to the extracted parking lot is searched for and displayed. 3. The parking lot guidance method according to claim 1, wherein the arrival time to the inputted destination or point is predicted, and the parking lot which is open at the predicted arrival time is extracted and displayed. 4. The parking lot guidance method according to claim 1, wherein congestion information and / or vacancy information of the parking lot is obtained by communication with the outside. 5. Means for acquiring map data including parking lot data, means for inputting a destination or point, means for searching for a parking lot near the input destination or point from the map data, A navigation device comprising: means for extracting a parking lot open at a predetermined date and time from the searched parking lots; and means for displaying the extracted parking lot. 6. The navigation apparatus according to claim 5, wherein said means for extracting a parking lot extracts a parking lot that meets conditions of a vehicle width, a vehicle height, or a vehicle type of the own vehicle. 7. The navigation device according to claim 5, wherein the means for extracting the parking lot extracts a parking lot with the lowest price. 8. When there are a plurality of the extracted parking lots,
8. The apparatus according to claim 5, further comprising a unit configured to display the plurality of parking lots in order of nearer distance according to a distance from the destination or the point.
The navigation device according to any one of the above. 9. When there are a plurality of the extracted parking lots,
The navigation device according to any one of claims 5 to 7, further comprising means for displaying the plurality of parking lots in ascending order according to a fee. 10. The navigation device according to claim 5, further comprising means for searching for and displaying a route to the extracted parking lot. 11. A means for searching for a route to the input destination or point, a means for searching for a path to the extracted parking lot, a path to the destination or point and to the parking lot The navigation device according to any one of claims 5 to 10, further comprising: means for switching which one of the routes is searched. 12. The navigation device according to claim 11, wherein when there is no parking lot near the input destination or point, a route to the destination or point is searched for and displayed. . 13. A means for predicting an arrival time to the input destination or point, wherein the means for extracting the parking lot operates at the expected arrival time among the searched parking lots. The navigation device according to any one of claims 5 to 12, wherein a parking lot is extracted. 14. The apparatus according to claim 5, further comprising: means for acquiring the map data through external communication, wherein the acquiring means acquires congestion information and / or vacancy information of a parking lot. The navigation device according to any one of the above. 15. A recording medium storing a program that implements the parking lot guidance method according to any one of claims 1 to 4 by software.