WO2016021001A1 - 警告通知システム、警告通知方法及びプログラム - Google Patents
警告通知システム、警告通知方法及びプログラム Download PDFInfo
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- WO2016021001A1 WO2016021001A1 PCT/JP2014/070726 JP2014070726W WO2016021001A1 WO 2016021001 A1 WO2016021001 A1 WO 2016021001A1 JP 2014070726 W JP2014070726 W JP 2014070726W WO 2016021001 A1 WO2016021001 A1 WO 2016021001A1
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- route
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3697—Output of additional, non-guidance related information, e.g. low fuel level
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
- G01C21/3415—Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3484—Personalized, e.g. from learned user behaviour or user-defined profiles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3691—Retrieval, searching and output of information related to real-time traffic, weather, or environmental conditions
Definitions
- the present invention relates to a warning notification system, a warning notification method, and a program.
- the present invention relates to a warning notification system, a warning notification method, and a program that appropriately notify a vehicle of a warning.
- a moving body warning device that determines whether or not the vehicle is traveling on a road that the driver is accustomed to from a past driving history and notifies a warning according to the determination result.
- This moving body warning device distinguishes and notifies warnings according to the usage frequency of the road (for example, see Patent Document 1).
- the present invention has been made to solve the above problems, and provides a highly reliable warning notification system, a warning notification method, and a program capable of appropriately notifying a warning even on a familiar road.
- the purpose is to do.
- a warning notification system includes: A route acquisition unit that acquires travel route information indicating a travel route of the vehicle; A route determination unit that determines whether or not the travel route is a route familiar to running; When the route determination unit determines that the travel route is a familiar route, a situation acquisition unit that acquires a past travel state of the travel route and a current travel state of the travel route; A warning determination unit that determines whether to notify a warning regarding an event associated with the travel route based on a past travel status of the travel route and a current travel status of the travel route; And
- the warning notification method includes: The route acquisition unit acquires travel route information indicating the travel route of the vehicle, The route determination unit determines whether or not the travel route is a familiar route to run, When the situation acquisition unit determines that the travel route is a familiar route by the route determination unit, the past acquisition situation of the travel route and the current travel situation of the travel route are acquired, The warning determination unit determines whether to notify a warning related to an event associated with the travel route based on a past travel status of the travel route and a current travel status of the travel route. To do.
- the program according to the present invention is: Route acquisition processing for acquiring travel route information indicating the travel route of the vehicle; A route determination process for determining whether or not the travel route is a route familiar to running; When the route determination process determines that the travel route is a familiar route, a situation acquisition process for acquiring a past travel situation of the travel route and a current travel situation of the travel route; Causing the computer to execute warning determination processing for determining whether or not to issue a warning regarding an event associated with the travel route based on the past travel status of the travel route and the current travel status of the travel route. .
- the warning determination unit determines whether or not to notify the warning about the event based on the past traveling state and the current traveling state of the moving route. Even if it exists, a warning can be appropriately notified.
- FIG. 1 is a block configuration diagram illustrating an example of a block configuration of a warning notification system according to Embodiment 1.
- FIG. It is a figure which shows an example of a structure of the vehicle information which concerns on Embodiment 1.
- FIG. It is a figure which shows an example of a structure of the environmental condition information which concerns on Embodiment 1.
- FIG. 2 is a diagram illustrating an example of a hardware configuration of a server device, an in-vehicle device, and a mobile terminal device according to Embodiment 1.
- FIG. 1 is a block configuration diagram illustrating an example of a block configuration of a warning notification system according to Embodiment 1.
- FIG. It is a figure which shows an example of a structure of the vehicle information which concerns on Embodiment 1.
- FIG. It is a figure which shows an example of a structure of the environmental condition information which concerns on Embodiment 1.
- FIG. It is a figure which shows an example of a structure of the notification determination condition information which concerns on
- FIG. 5 is a flowchart illustrating an example of an operation of a warning notification method (processing, process) in the warning notification system according to the first embodiment.
- 3 is a flowchart illustrating an example of a determination processing algorithm according to the first embodiment. It is a figure which shows an example of the block configuration of the warning notification system which concerns on Embodiment 2.
- FIG. 12 is a flowchart illustrating an example of an operation of a warning notification method in the warning notification system according to the second embodiment.
- FIG. 1 is a block configuration diagram showing an example of a block configuration of a warning notification system 500 according to the present embodiment.
- the warning notification system 500 is a driving support system for notifying a driver who drives a vehicle of a warning regarding danger information and the like on a moving route scheduled to travel from now on, and supporting driving.
- a block configuration of a warning notification system 500 according to the present embodiment will be described with reference to FIG.
- the warning notification system 500 includes a server device 100 and an in-vehicle device 200.
- Server device 100 and in-vehicle device 200 are connected via network 300.
- the server device 100 is, for example, a server computer installed in a data center or the like, or another computer.
- the server device 100 is an example of a warning notification device that is connected to an in-vehicle device 200 mounted on a vehicle via a network 300 and notifies the vehicle of a warning.
- the in-vehicle device 200 is, for example, a navigation device.
- the in-vehicle device 200 may be a combination of a navigation device or DA (Display / Audio) and a mobile terminal (for example, a smartphone, a tablet, or a mobile phone).
- DA Display / Audio
- mobile terminal for example, a smartphone, a tablet, or a mobile phone.
- HUD Head / Up / Display
- the in-vehicle device 200 includes a route acquisition unit 210, a route determination unit 240, a vehicle information collection unit 250, a device communication unit 260, and a display unit 270.
- the in-vehicle device 200 stores the travel history 220 and the vehicle information 230 in a storage device.
- the travel history 220 is stored in the storage device by the travel history storage unit.
- the vehicle information 230 is stored in the storage device by the vehicle information storage unit.
- the route acquisition unit 210 acquires travel route information indicating the travel route of the vehicle. For example, the route acquisition unit 210 acquires a travel route when the driver sets a destination in the in-vehicle device 200 that is a navigation device.
- the route determination unit 240 determines whether or not the travel route acquired by the route acquisition unit 210 is a road (route) familiar to the user. For example, a route that has been ridden in the past corresponds to the familiar route. Moreover, it may not have traveled in the past. For example, when the travel route is around the home, the route is familiar to the user because it is a familiar road and scenery for the user. Although it can set arbitrarily with the periphery of home, for example, the range within several kilometers from home corresponds. The user here corresponds to a vehicle driver or a passenger.
- the route determination unit 240 determines, for example, whether or not the vehicle is a familiar road depending on whether or not the vehicle has traveled a travel route within a predetermined period in the past (for example, within the past year). Alternatively, the route determination unit 240 may determine whether or not it is a familiar road depending on whether the vehicle has traveled a predetermined number of times or more within a predetermined period in the past.
- the route determination unit 240 determines that the travel route is a familiar route
- the route determination unit 240 travels the travel route information indicating the travel route, the time zone during which the travel route is normally traveled, and the current (current) travel route.
- the scheduled time zone is output to the device communication unit 260.
- the time zone in which the travel route travels corresponds to, for example, the time zone in which the travel route has been traveled in the past.
- the vehicle information collection unit 250 collects information related to driving operations such as an accelerator, a brake, and a handle, information related to the motion of the vehicle itself such as vehicle speed, acceleration, and yaw rate, and information obtained from sensors such as a camera and a radar.
- the vehicle information collection unit 250 is realized by a hardware interface that collects information from sensors.
- the vehicle information collection unit 250 may be the sensor itself.
- the vehicle information collection unit 250 may be implemented as a program that executes a function of collecting information from sensors and the like.
- the vehicle information storage unit stores the information collected by the vehicle information collection unit 250 as vehicle information 230 in a storage device.
- the device communication unit 260 sends the travel route information output from the route determination unit 240, the time zone in which the travel route is normally traveled, and the time zone in which the travel route is scheduled to travel this time through the network 300. Transmit to device 100. Further, the device communication unit 260 receives warning information from the transmission unit 190 of the server device 100. The display unit 270 displays a warning on the display device based on the warning information received by the device communication unit 260.
- the warning notification is not limited to video display, and may be voice notification, vibration notification, or a combination thereof.
- the network 300 is, for example, a combination of a mobile communication network and the Internet.
- the server apparatus 100 includes a reception unit 110, an event acquisition unit 120, a situation acquisition unit 160, a warning determination unit 170, and a transmission unit 190. Further, the risk management information 130, the vehicle state information 140, the environmental situation information 150, and the notification determination condition information 180 are stored in a storage device provided in the server device 100.
- the danger management information 130 is managed by the danger information management unit and stored in the storage device.
- the vehicle state information 140 is managed by the vehicle state management unit and stored in the storage device.
- the environmental status information 150 is managed by the environmental status management unit and stored in the storage device.
- the notification determination condition information 180 is stored in the storage device by the notification determination condition storage unit.
- the risk management information 130 is so-called hazard map that associates map information with a risk event (an example of an event) that may occur at a position on the map.
- vehicle information 230 is collected from time to time from subscribers who have subscribed to a warning notification service provided by the warning notification system 500.
- the vehicle information 230 may be transmitted to the server device 100 at predetermined intervals.
- the vehicle information 230 including the dangerous information related to the dangerous event may be transmitted even if it is not at a predetermined interval.
- the danger information management unit of the warning notification system 500 receives the vehicle information 230 indicating the state of the vehicle from the in-vehicle device 200, and generates the danger management information 130 based on the received vehicle information 230. As described above, the risk information management unit generates the risk management information 130 based on the risk information collected from the subscriber.
- the vehicle state management part of the server apparatus 100 memorize
- FIG. 2 is a diagram showing an example of the configuration of the vehicle information 230 according to the present embodiment.
- a vehicle identifier for identifying the vehicle, time, position (latitude, longitude), type of dangerous event when a dangerous event occurs, vehicle speed, number of passengers, etc. are set. Is done.
- the vehicle state management unit stores the received vehicle information 230 in the storage device for each vehicle identifier and sets it as the vehicle state information 140. Alternatively, the vehicle state management unit may accumulate the received vehicle information 230 as it is in the storage device.
- FIG. 3 is a diagram showing an example of the configuration of the environmental status information 150 according to the present embodiment.
- the environmental status information 150 includes weather information 151, traffic jam information 152, construction information 153, and the like.
- the environmental status information 150 such as the weather information 151, the traffic jam information 152, and the construction information 153 may be acquired based on the vehicle information 230 received from the vehicle.
- the environmental condition management unit may detect a traffic jam position at a position on the map based on the vehicle information 230 received from the in-vehicle device 200. Or you may acquire from an external weather database, a road information database, a construction information database, etc. Further, when only the external weather database, road information database, and construction information database are used, the environmental status information 150 is not necessary.
- the receiving unit 110 receives travel route information indicating the travel route of the vehicle from the in-vehicle device 200 via the network 300.
- the travel route information is position information indicating the travel route.
- the event acquisition unit 120 acquires risk information (an example of event information) representing a risk event (an example of an event) associated with the travel route based on the risk management information 130.
- risk information an example of event information
- a risk event an example of an event associated with the travel route based on the risk management information 130.
- a dangerous event associated with a travel route is a risk event associated with a possibility of occurring at a location on the travel route. Alternatively, it is a dangerous event associated with occurring at a location on the travel route.
- dangerous events include events such as slip, sharp curve, sudden brake, lane decrease, construction, caution for forward collision, pop-out caution, step difference, and the like. Events other than these dangerous events may be used.
- the danger information is information including event information representing a dangerous event and event position information representing a dangerous position (an example of the position of the event) that is the position of the dangerous event.
- the dangerous position is, for example, a position where this dangerous event has occurred in the past.
- the risk management information 130 is, for example, information in which a dangerous event such as popping out attention is associated with a dangerous position indicating a point where the popping out occurs.
- the situation acquisition unit 160 A travel situation at a past time point, which is a past time point on which the travel route was traveled, and a travel situation at a current time point, which is the current time point, are acquired.
- the driving situation at the past time may be referred to as a normal driving situation
- the driving situation at the present time may be referred to as a current driving situation.
- the normal driving situation may be expressed as a past driving condition
- the current driving condition may be expressed as a current driving condition.
- the situation acquisition unit 160 acquires a normal running situation in the danger range (an example of the event range) in the travel route and a current running situation in the danger range.
- the danger range is a designated range that is designated in advance including the danger position, and is, for example, a range within a 10-meter range, a 50-meter range, or a 100-meter range from the danger position.
- the situation acquisition unit 160 acquires the normal running situation and the current running situation based on the vehicle condition information 140 and the environmental situation information 150. A method by which the situation acquisition unit 160 acquires the normal running situation and the current running situation will be described in detail later.
- the traveling state is, for example, the state of the vehicle, the traveling time zone of the vehicle, the environment around the vehicle, and the like.
- the vehicle state is, for example, the speed of the vehicle when traveling on the travel route, the number of passengers when traveling on the travel route, and the like.
- the traveling time zone of the vehicle is, for example, a time zone when traveling on a moving route.
- the environment around the vehicle includes the weather during traveling, the state of the moving route, and the like.
- the travel route state includes a state where a high-rise building is constructed along the travel route, a state where the travel route is under construction, and the like. For example, when the map is updated, the travel status changes because the state of the travel route is updated.
- the illustration of the traveling situation described above is an example, and any other situation may be used as long as it represents the situation when the vehicle travels on the travel route.
- the notification determination condition information 180 stores a dangerous event in association with a notification determination condition 181 for determining whether to notify a warning regarding this dangerous event.
- the notification determination condition 181 is a condition for determining whether or not to issue a warning based on determination information regarding a difference between the traveling state at the past time point and the traveling state at the present time point.
- the determination information is information of a result of determining whether or not there is a change between the driving situation at the past time point and the driving situation at the current time point. If the current driving situation is “Currently, the number of passengers is six”, the information “There are more passengers than usual” corresponds to the determination information.
- FIG. 4 is a diagram showing an example of the configuration of the notification determination condition information 180 according to the present embodiment.
- a dangerous event on a familiar road and a notification determination condition 181 for determining whether or not to warn about the dangerous event are set.
- the notification determination condition information 180 whether or not a dangerous event on a familiar road is notified when the speed is higher than the normal time (past time), the normal time and the time zone are displayed. Whether to notify when there is a difference, whether to notify when the number of passengers is larger than normal, whether to notify when the map has been updated from normal, or in case of stormy weather than normal A plurality of notification determination conditions 181 are set.
- the notification determination condition 181 may be other than the conditions described in FIG. 4 as long as it can be determined whether or not a warning is to be notified based on determination information related to a difference in traveling conditions between the normal time and the current time. It doesn't matter if it's a condition.
- “-”, “ ⁇ ”, “ ⁇ ” indicate the presence / absence of warning notification, among which “-” means no notification, “ ⁇ ” means normal notification, “ “” Means to give notice of emphasis.
- the normal notification is notification of a warning by a normal method.
- the emphasis notification is notification that emphasizes a warning more. For example, if the normal notification is to display the warning in the normal display manner on the display device, the highlighting is more warning than in the case of the normal notification, for example, by flashing the warning or displaying it with an alarm. To emphasize.
- the priority of “ ⁇ ”, “ ⁇ ”, and “ ⁇ ” set in the notification determination condition information 180 is “priority of“ ⁇ ”> priority of“ ⁇ ”> priority of“ ⁇ ”.
- the priority is set. For example, when the determination result to be notified of emphasis overlaps with the determination result not to be notified, the emphasis notification with higher priority is adopted.
- the warning determination unit 170 determines whether or not to issue a warning regarding a dangerous event based on the normal driving state and the current driving state.
- the warning determination unit 170 determines whether or not the normal traveling state and the current traveling state are different from each other by the processing device, and acquires determination information including the normal traveling state and the current traveling state when it is determined that they are different.
- the warning determination unit 170 determines whether to notify a warning using the acquired determination information and the notification determination condition 181.
- the situation acquisition unit 160 acquires “running from 11:00 to 12:00 at normal time (past time)” as the normal running situation, and the current running It is assumed that “currently traveling from 7 o'clock to 8 o'clock” is acquired as the situation.
- the warning determination unit 170 obtains determination information including the normal traveling state and the current traveling state, that is, information “differing between normal and time zone”.
- the warning determination unit 170 Based on the notification determination condition information 180, the warning determination unit 170 has a low risk level for the dangerous event “attention to jump out” during normal daytime (11:00 to 12:00), but at present the morning ( It is determined that the warning is highlighted because the travel is from 7 o'clock to 8 o'clock) and the risk is high.
- the situation acquisition unit 160 acquires “running from 11:00 to 12:00 at normal time (past time)” as the normal running condition, and currently running It is assumed that “currently traveling from 7 o'clock to 8 o'clock” is acquired as the situation.
- the warning determination unit 170 determines that there is no increase in the degree of risk due to the time zone for the dangerous event “steep curve”, and therefore determines that the warning is not notified.
- the warning notification due to the time zone condition is “-(not notify)”, but the warning notification due to the increase in the number of passengers is “ ⁇ (normal notification)”, so it is determined that the warning is normally displayed. This is because it is determined that it is necessary to notify a warning because the weight of the vehicle increases, and the danger level due to a sharp curve increases in the current state than in the normal state.
- the warning determination unit 170 outputs warning information including information indicating the content of the warning and information indicating the strength of the warning notification to the transmission unit 190.
- the transmission unit 190 transmits the warning information acquired from the warning determination unit 170 to the in-vehicle device 200 via the network 300.
- the warning determination unit 170 and the transmission unit 190 have different block configurations, but the functions of the warning determination unit 170 and the transmission unit 190 may be realized by one block.
- the notification classification condition 181 is classified as “ ⁇ ”, “ ⁇ ”, “ ⁇ ”, but it is not always necessary to classify in this manner. Yes) and “-” (not notified).
- FIG. 5 is a diagram illustrating an example of a hardware configuration of the server device 100 and the in-vehicle device 200 according to the present embodiment.
- a hardware configuration example of the server device 100 and the in-vehicle device 200 will be described with reference to FIG.
- the server device 100 and the in-vehicle device 200 are computers, and each element of the server device 100 and the in-vehicle device 200 can be realized by a program.
- an arithmetic device 901, an external storage device 902, a main storage device 903, a communication device 904, and an input / output device 905 are connected to the bus.
- the arithmetic device 901 is a CPU (Central Processing Unit) that executes a program.
- the arithmetic device 901 may be expressed as a processing device, a processor, or a processing circuit.
- the external storage device 902 is, for example, a ROM (Read Only Memory), a flash memory, or a hard disk device.
- the main storage device 903 is a RAM (Random / Access / Memory).
- the communication device 904 is, for example, a communication board or the like, and is connected to a LAN (Local / Area / Network) or the like.
- LAN Local / Area / Network
- the communication device 904 is not limited to a LAN, but includes an IP-VPN (Internet, Protocol, Private, Network), a wide area LAN, an ATM (Asynchronous / Transfer / Mode) network, a WAN (Wide / Area / Network), or the Internet. It does not matter if it is connected to. LAN, WAN, and the Internet are examples of networks.
- the input / output device 905 is, for example, a mouse, a keyboard, a display device, or the like. Instead of the mouse, a touch panel, a touch pad, a trackball, a pen tablet, or other pointing devices may be used.
- the display device may be an LCD (Liquid / Crystal / Display), a CRT (Cathode / Ray / Tube), or another display device.
- the display device is an example of the display unit 270 described in the embodiment.
- the program is normally stored in the external storage device 902, and is loaded into the main storage device 903 and sequentially read into the arithmetic device 901 and executed.
- the program is a program that realizes a function described as “unit” shown in the block configuration diagram.
- the program product (computer program product) includes a storage medium, a storage device, and the like on which a program that realizes the function of “ ⁇ unit” shown in the block configuration diagram is recorded.
- a program product loads a computer-readable program regardless of its appearance.
- an operating system is also stored in the external storage device 902. At least a part of the OS is loaded into the main storage device 903, and the arithmetic device 901 executes the OS while the block configuration diagram of FIG. The program that realizes the function of “to part” shown is executed.
- An application program is also stored in the external storage device 902, and is sequentially executed by the arithmetic device 901 while being loaded in the main storage device 903.
- a program for realizing the functions of the reception unit 110, the event acquisition unit 120, the situation acquisition unit 160, the warning determination unit 170, and the transmission unit 190, the risk management information 130, the vehicle state information 140, the environmental state information 150, and the notification determination condition Information 180 is stored in the external storage device 902, and the arithmetic device 901 executes the above-described program using various types of information stored in the external storage device 902, thereby realizing processing. That is, by combining the hardware that is the arithmetic device 901 and the software that is the program, the functions of “ ⁇ unit” shown in the block configuration diagram of FIG. 1 are realized.
- the arithmetic unit 901 is programmed to realize the functions of “ ⁇ unit” shown in the block configuration diagram of FIG. Note that these functions are not limited to a combination of hardware and software, and the program may be implemented in the arithmetic device 901 and realized by hardware alone.
- Information such as “ ⁇ table” is also stored in the external storage device 902.
- “determining”, “determining”, “extracting”, “detecting”, “setting”, “registering”, “selecting”, “generating”, Information, data, signal values, and variable values indicating processing results such as “input of” and “output of” are stored in the main storage device 903.
- data received by the server device 100 and the in-vehicle device 200 is stored in the main storage device 903.
- an encryption key / decryption key, a random number value, and a parameter may be stored in the main storage device 903.
- FIG. 5 is merely an example of the hardware configuration of the server device 100 and the in-vehicle device 200, and the hardware configuration of the server device 100 and the in-vehicle device 200 is not limited to the configuration illustrated in FIG. Other configurations may be used.
- FIG. 6 is a flowchart showing an example of the operation of the warning notification method (process, process) in the warning notification system 500 according to the present embodiment.
- the operation of the warning notification method (processing, process) in the warning notification system 500 according to the present embodiment will be described with reference to FIG.
- the route acquisition unit 210 of the in-vehicle device 200 acquires the travel route of the vehicle as the travel route.
- the route acquisition unit 210 acquires a travel route from the current location of the vehicle to the destination based on the destination set by the user in the in-vehicle device 200 that is a navigation device.
- the route acquisition unit 210 may acquire a road that is within a predetermined range from the current location of the vehicle as a travel route.
- the route acquisition unit 210 may acquire a travel route from the tendency of past travel routes.
- the route determination unit 240 of the in-vehicle device 200 determines, based on the travel history 220, whether or not the travel route is a road familiar to the driver of the vehicle. For example, the route determination unit 240 determines whether or not the vehicle has traveled the travel route in the past using the travel history 220, and determines that the travel route is familiar with the travel route when it has traveled in the past. To do. Alternatively, the route determination unit 240 counts the number of travels of the travel route using the travel history 220, and determines that the travel route is a familiar road when the travel number is equal to or greater than a threshold value. Alternatively, the route determination unit 240 may determine that the travel route is a familiar road when the travel route is within a predetermined distance from the driver's home.
- the route determination unit 240 When the route determination unit 240 determines that the travel route is a familiar road, the route determination unit 240 usually acquires a time zone for traveling on the travel route as a normal travel time zone.
- the route determination unit 240 acquires a normal travel time zone using the travel history 220. For example, the route determination unit 240 extracts a time zone in which the travel route has been traveled in the past from the travel history 220, and acquires a time zone indicating a predetermined ratio or more among all the extracted time zones as a normal travel time zone.
- the process proceeds to S103. If the route determination unit 240 determines that the route is not familiar with the travel route, the process ends. However, when the route determination unit 240 determines that the route is not familiar with the moving route, the warning is not notified, and a normal warning notification process is executed to notify an appropriate warning.
- the device communication unit 260 of the in-vehicle device 200 includes a travel route acquired by the route acquisition unit 210, a normal travel time zone acquired by the route determination unit 240, and a current travel time zone that is a time zone for traveling on the current travel route. Are transmitted to the server apparatus 100 via the network 300.
- ⁇ Route reception process (step): S201>
- the reception unit 110 of the server device 100 receives the travel route, the normal travel time zone, and the current travel time zone from the device communication unit 260 of the in-vehicle device 200 via the network 300.
- ⁇ Event acquisition process (process): S202>
- the event acquisition unit 120 acquires danger information representing a dangerous event associated with the movement route based on the movement route received by the reception unit 110 and the danger management information 130. For example, it is assumed that the event acquisition unit 120 has acquired a dangerous position A that warns of jumping out on a moving route as danger information.
- ⁇ Status acquisition process (process): S203>
- the situation acquisition unit 160 uses the vehicle state information 140 and the environmental situation information 150 based on the danger information acquired by the event acquisition unit 120, the travel route, the normal travel time zone, and the current travel time zone, and the normal travel situation. And the current driving situation.
- the situation acquisition unit 160 acquires the normal running situation of the vehicle that has traveled the travel route from the vehicle status information 140 and the environmental situation information 150 in the past.
- a certain driver may not always have only one traveling situation at a past time. If a certain travel route has been traveled a plurality of times in the past, there are a plurality of travel conditions such as sunny at some times and rain at other times.
- the situation acquisition unit 160 acquires the normal running situation based on a plurality of running situations when the travel route has been run a plurality of times in the past. For example, the situation acquisition unit 160 may acquire, from the vehicle state information 140 and the environmental situation information 150, an average state of a plurality of traveling situations of a vehicle that has traveled a travel route during the normal traveling time period as the normal traveling situation. Alternatively, the situation acquisition unit 160 may acquire the latest driving situation among the past driving situations as the normal driving situation. Alternatively, the situation acquisition unit 160 may select a driving situation closest to the current driving situation from a plurality of past driving situations, and acquire the selected driving situation as a normal driving situation. Alternatively, the situation acquisition unit 160 may acquire, as a normal running situation, a past running situation that has the same value or the closest value for a specific item of the current running situation.
- the status acquisition unit 160 acquires the current traveling status of the vehicle traveling on the current route from the vehicle status information 140 and the environmental status information 150.
- the situation acquisition unit 160 may acquire, from the vehicle state information 140 and the environment state information 150, the average state of the traveling state of the vehicle that has traveled the travel route in a predetermined time zone including the current time as the current traveling state. .
- the situation acquisition unit 160 acquires a driving situation in a designated range (an example of an event range) designated in advance from the dangerous position A of the dangerous event “attention to jump out” acquired by the event acquisition unit 120.
- a designated range an example of an event range
- the range designated in advance can be set by the system administrator of the warning notification system warning notification system 500. For example, it can be designated as within a 10 meter range, within a 50 meter range, within a 100 meter range, or the like.
- ⁇ Warning determination process (process): S204>
- the warning determination unit 170 sets the notification determination condition information 180 based on the dangerous event of the travel route acquired by the event acquisition unit 120, the normal traveling state and the current traveling state acquired by the state acquisition unit 160.
- the processing device determines whether or not to notify the warning.
- FIG. 7 is a flowchart showing an example of an algorithm for determination processing according to the present embodiment.
- the arithmetic device 901 executes a determination process by the warning determination unit 170, that is, a program for realizing the determination process of step S204 by executing the algorithm shown in FIG. 7 (the process of step S204-1 to the process of step S204-5). Has been.
- the warning determination unit 170 acquires a dangerous event from the event acquisition unit 120, and acquires a normal traveling state and a current traveling state from the state acquisition unit 160 (step S204-1).
- notification determination is executed when a dangerous event is popping out.
- the normal travel time zone is acquired from 12:00 to 13:00 (daytime)” as the normal travel status
- the current travel time zone is from 7 o'clock to 8:00 (morning)” as the current travel status.
- “30 kilometers per hour” is acquired as the normal traveling state
- “50 kilometers per hour” is acquired as the current traveling state.
- “1 passenger” is acquired as the normal travel status
- “5 passengers” is acquired as the current travel status.
- the warning determination unit 170 reads the notification determination condition information 180 from the storage device (step S204-2).
- the notification determination condition information 180 among the notification determination conditions 181 for the dangerous event “jump out caution” shown in FIG. 4, “normal and time zone are different”, “speed is faster than normal”, “boarding than normal” Read out the location for “Many people”.
- the warning determination unit 170 refers to the notification determination condition information to determine whether the notification determination condition for the dangerous event is satisfied (step S204-3).
- the notification determination condition 181 “Normal and time zone are different” is satisfied.
- the warning determination unit 170 determines whether other notification determination conditions 181 remain (step S204-4). If not, the process proceeds to step S204-5. If remaining, the process returns to step S204-3. Here, since the remaining notification determination conditions 181 remain, step S204-3 is performed for these. Since the normal traveling state is “30 kilometers per hour” and the current traveling state is “50 kilometers per hour”, the notification determination condition 181 “faster than usual” is satisfied. In addition, since the normal traveling state is “1 passenger” and the current traveling state is “5 passengers”, the notification determination condition 181 “more passengers than normal” is satisfied. Next, the warning determination unit 170 determines whether or not to notify a warning (step S204-5).
- the notification determination condition 181 “the time zone is different from the normal time”, “the speed is higher than normal”, and “the number of passengers is higher than normal” are all satisfied.
- the notification determination condition 181 “the number of passengers is greater than normal” is “ ⁇ ” without notification for the dangerous event “caution popping out”, but the notification determination condition 181 “difference between normal and time zone” Since “higher than normal” is highlighted “ ⁇ ”, the warning determination unit 170 determines to notify the driver or the like of the warning related to the dangerous event “jumping attention” by highlighting.
- the warning notification is not limited to video display, and may be voice notification, vibration notification, or a combination thereof.
- the warning determination unit 170 acquires the dangerous event, the normal traveling state that is the past traveling state, and the current traveling state that is the current traveling state in step S204-1, and then the notification determination condition information Reading is performed, but the present invention is not limited to this.
- the warning determination unit 170 first determines whether or not the normal traveling state of the travel route is different from the current traveling state, and if there is a difference, the processing after step S204-2, that is, whether or not to notify the warning. Such determination processing may be performed. By doing so, when there is no difference between the past driving situation and the current driving situation, the processing after step S204-2 including reading of the notification determination condition information can be omitted, and the processing load is reduced. Can be lowered.
- the processing ends. If the warning determination unit 170 determines to notify the warning (notify in S204), the process proceeds to S205.
- the transmission unit 190 receives warning information for displaying a warning from the warning determination unit 170.
- the warning information includes information indicating the content of the warning and information indicating the strength of the warning notification.
- the warning determination unit 170 determines to make a notice of emphasis on the warning “jump out” in the vicinity of the dangerous position A.
- the warning determination unit 170 outputs warning information including a warning “attention to popping out” and an emphasis notification to the transmission unit 190.
- the transmission unit 190 transmits the warning information received from the warning determination unit 170 to the in-vehicle device 200 via the network 300.
- the device communication unit 260 of the in-vehicle device 200 receives the warning information from the transmission unit 190 of the server device 100.
- the display unit 270 displays a warning on the display device based on the warning information received by the device communication unit 260.
- the warning may be notified by voice other than the method of displaying on the display device.
- an announcement such as “Please be careful about slips” is output as voice, and in the case of a highlight notification, an announcement with a sense of tension such as “Dangerous! Dangerous! May be.
- the warning may be notified by vibration, and the warning may be notified as normal vibration in the case of normal notification and as vibration stronger than normal vibration in the case of emphasis notification. Moreover, you may notify combining voice, the display to a display apparatus, and a vibration.
- priority information indicating the priority of each of the plurality of notification determination conditions 181 may be assigned to each of the plurality of notification determination conditions 181. Then, the warning determination unit 170 selects at least one notification determination condition 181 from the plurality of notification determination conditions 181 based on the priority assigned to each of the plurality of notification determination conditions 181, and selects at least one selected notification The notification determination process may be executed based on the determination condition 181.
- the timing at which the warning notification system 500 displays a warning on the display device may be, for example, a predetermined distance before the dangerous position. For example, it is assumed that the system administrator designates 3 kilometers before and 2 kilometers before the dangerous position. Or when a driver
- the warning notification system 500 since the change in the driving situation can be acquired even on a familiar road, the risk increases due to the change in the driving situation. Can be alerted appropriately. For example, the road in front of school that you are used to is usually less busy during the day. However, this time, when traveling in the evening school time zone, a warning of jumping out notice is given and appropriate attention can be given.
- the server device side determines whether the warning notification is necessary, and transmits the warning information to the in-vehicle device side only when the notification is necessary.
- the amount can be reduced, and the load on the network can be reduced.
- the notification determination condition information 180 since the notification determination condition information 180 is provided, whether or not a warning regarding a dangerous event is to be notified is finely determined depending on the content of the dangerous event on a familiar road. Can be determined. Since only one type of condition is determined as one notification determination condition 181, the determination process can be simplified. In addition, the notification determination condition 181 can be easily changed.
- the warning notification system 500 it is unnecessary to accurately acquire a change in the driving situation on a familiar road and notify the warning when the degree of danger does not change from the normal time. It is possible to reduce the number of warnings, and to realize an accurate warning notification such that a warning is always highlighted when the degree of danger is higher than normal. Furthermore, the load on the network can be reduced.
- Embodiment 2 FIG. In the present embodiment, differences from the first embodiment will be mainly described. In this embodiment, components having the same functions as those described in Embodiment 1 are denoted by the same reference numerals, and the description thereof may be omitted.
- the server device 100 acquires danger information on the travel route, and whether or not a warning notification is required. Is determined by the warning determination unit 170, and when notification is required, warning information is transmitted to the in-vehicle device 200.
- the server apparatus 100 transmits the danger information, the normal traveling state, and the current traveling state acquired by the event acquisition unit 120 and the situation acquisition unit 160 to the in-vehicle device 200, and the in-vehicle device 200 needs to notify the warning. A method for determining the above will be described.
- the in-vehicle device 200 is an example of a warning notification device that determines whether or not a warning notification is necessary.
- FIG. 8 is a diagram showing an example of a block configuration of the warning notification system 501 according to the present embodiment.
- the in-vehicle device 200 includes a warning determination unit 170 and notification determination condition information 180 in addition to the configuration described in the first embodiment.
- the server apparatus 100 does not include the warning determination unit 170 and the notification determination condition information 180.
- the functional configurations of the warning determination unit 170 and the notification determination condition information 180 are the same as those described in the first embodiment.
- FIG. 9 is a flowchart showing an example of the operation of the warning notification method in the warning notification system 501 according to the present embodiment. An example of the operation of the warning notification method in the warning notification system 501 will be described with reference to FIG.
- the transmission unit 190 transmits the danger information acquired by the event acquisition unit 120, the normal traveling state and the current traveling state acquired by the state acquisition unit 160, to the in-vehicle device 200.
- ⁇ Reception process S103a>
- the device communication unit 260 receives the danger information, the normal traveling state, and the current traveling state from the server device 100.
- the process of S103b is the same as S204 described in FIG. 6 of the first embodiment. That is, the warning determination unit 170 of the in-vehicle device 200 acquires the danger information, the normal traveling state, and the current traveling state via the device communication unit 260. The warning determination unit 170 refers to the notification determination condition information 180 based on the normal traveling state and the current traveling state, and determines whether or not a warning of a dangerous event is necessary. If the warning determination unit 170 determines to notify, the warning determination unit 170 outputs warning information including the content of the warning and the notification method to the display unit 270. In S104, the display unit 270 displays a warning on the display device according to the warning information. The process of S104 is the same process as S104 described in FIG. 6 of the first embodiment.
- the notification determination condition is dynamically changed on the vehicle side (driver side).
- the driver is not good at responding to a specific dangerous event, so in the case of a warning for this specific dangerous event, the condition for notifying the warning as much as possible should be reduced. Can be set.
- a veteran driver a driver having advanced driving technology, etc., it is possible to increase the warning notification condition and set the warning notification only when it is really necessary.
- the warning notification system described so far is not limited to a system composed of the server device 100 and the in-vehicle device 200, that is, a system composed of a plurality of devices, but includes the server device 100 alone or the in-vehicle device 200 alone. It is a concept that also includes That is, the warning notification system may refer to the server device 100, or may refer to the server device 100 that further includes a part or all of the functions of the in-vehicle device 200. Further, the warning notification system may refer to the in-vehicle device 200, or may refer to the in-vehicle device 200 further having a part or all of the functions of the server device 100. The same applies to the following description.
- Embodiment 3 FIG. In the present embodiment, differences from Embodiments 1 and 2 will be mainly described. In the present embodiment, components having the same functions as those described in the first and second embodiments are denoted by the same reference numerals, and the description thereof may be omitted.
- a portable terminal device 400 carried by a user is used as a navigation device.
- the portable terminal device 400 is, for example, a smartphone or a tablet terminal.
- the server device 100 transmits the danger information, the normal traveling state, and the current traveling state acquired by the event acquisition unit 120 and the situation acquisition unit 160 to the mobile terminal device 400, and the mobile terminal device 400 notifies the warning.
- a method for determining necessity is described.
- the mobile terminal device 400 also has a function of determining whether the travel route is a familiar road.
- the mobile terminal device 400 is an example of a warning notification device that determines whether a warning notification is necessary.
- FIG. 10 is a diagram illustrating an example of a block configuration of the warning notification system 502 according to the present embodiment.
- the warning notification system 502 includes a server device 100, an in-vehicle device 200, and a mobile terminal device 400.
- Server device 100, in-vehicle device 200, and portable terminal device 400 are connected to each other via network 300.
- the mobile terminal device 400 includes a route acquisition unit 210, a route determination unit 240, a travel history 220, a warning determination unit 170, notification determination condition information 180, a display unit 410, and a device communication unit 440.
- the point that the server apparatus 100 does not have the warning determination unit 170 and the notification determination condition information 180, and the point that the vehicle-mounted device 200 does not have the route acquisition unit 210, the route determination unit 240, and the travel history 220 are the first embodiment. Different from 2.
- the mobile terminal device 400 is loaded with an application for a navigation device.
- the portable terminal device 400 functions as a navigation device.
- the functional configurations of the route acquisition unit 210, the route determination unit 240, the travel history 220, the warning determination unit 170, and the notification determination condition information 180 are the same as those described in the first embodiment.
- the display unit 410 displays map information, destination information, and the like when the mobile terminal device 400 functions as a navigation device on the display device. Further, the display unit 410 displays a warning determined to be notified by the warning determination unit 170 on the display device.
- the device communication unit 440 executes communication between the mobile terminal device 400, the server device 100 connected to the mobile terminal device 400 via the network 300, and the in-vehicle device 200.
- FIG. 11 is a flowchart showing an example of the operation of the warning notification method in the warning notification system 502 according to the present embodiment. An example of the operation of the warning notification method in the warning notification system 502 will be described with reference to FIG.
- the route acquisition unit 210 of the mobile terminal device 400 acquires the travel route of the vehicle as a travel route.
- the route acquisition unit 210 acquires a travel route from the current location of the vehicle to the destination based on the destination set by the user in the mobile terminal device 400 that is a navigation device.
- the processing of S301 to S303 is the same as S101 to S103 described in FIG. 6 of the first embodiment.
- the transmission unit 190 transmits the danger information acquired by the event acquisition unit 120, the normal travel time zone acquired by the situation acquisition unit 160, and the current travel time zone to the mobile terminal device 400 (smart phone, tablet terminal). To do.
- the device communication unit 440 receives the danger information, the normal travel time zone, and the current travel time zone from the server device 100.
- the process of S303a is the same as S103a described in FIG. 6 of the first embodiment.
- the process of S303b is the same as S204 described in FIG. 6 of the first embodiment. That is, the warning determination unit 170 of the mobile terminal device 400 acquires the danger information, the normal travel time zone, and the current travel time zone from the server device 100.
- the warning determination unit 170 refers to the notification determination condition information 180 based on the situation information, and determines whether or not warning of a dangerous event is necessary.
- the warning determination unit 170 determines to notify
- the warning determination unit 170 outputs warning information including the content of the warning and the notification method to the display unit 410.
- the display unit 410 displays a warning on the display device based on the acquired warning information.
- the warning determination unit 170 may transmit warning information including the content of the warning and a notification method to the in-vehicle device 200.
- the device communication unit 260 of the in-vehicle device 200 outputs the warning information to the display unit 270 of the in-vehicle device 200.
- the display unit 270 of the in-vehicle device 200 displays a warning on the display device of the in-vehicle device 200.
- the warning determination unit 170 may output the warning information to the display unit 410 and transmit the warning information to the in-vehicle device 200.
- the display unit 410 displays a warning on the display device according to the warning information.
- the process of S304 is the same process as S102 described in FIG. 6 of the first embodiment.
- the notification determination condition information 180 is provided in the mobile terminal device 400 that functions as a navigation device, so notification determination is performed on the vehicle side (driver side). Conditions can be changed dynamically. Even if the vehicle is changed, if there is a mobile terminal device, the warning notification service by the warning notification system 502 can be easily received.
- the warning notification system described in the present embodiment is not limited to a system including the server device 100, the in-vehicle device 200, and the mobile terminal device 400, that is, not only a system including a plurality of devices, but also the mobile terminal device 400. It is a concept that includes simple substances. That is, the warning notification system may refer to the mobile terminal device 400 alone. Further, the function blocks of the warning notification system described in the present embodiment may be distributed and arranged in the server device 100, the in-vehicle device 200, and the mobile terminal device 400.
- the block configuration of the warning notification system is not limited to the block configuration described in the first to third embodiments. You may implement
- the event acquisition unit and the situation acquisition unit may be one functional block
- the determination unit and the communication unit may be one functional block.
- the functional block can be variously changed as necessary as long as it does not contradict, and the above block configuration is arbitrary. Further, the functional blocks described in the first to third embodiments may be distributed in any manner in the warning notification system as long as they do not contradict each other.
- the route determination unit 240 and the travel history 220 may be arranged in the server device 100. In this case, it is not necessary to notify the server device of the normal travel time zone from the vehicle side.
- 100 server device 110 receiving unit, 120 event acquiring unit, 130 danger management information, 140 vehicle status information, 150 environmental status information, 151 weather information, 152 traffic jam information, 153 construction information, 160 status acquiring unit, 170 warning determining unit, 180 notification determination condition information, 181 notification determination condition, 190 transmission unit, 200 in-vehicle device, 210 route acquisition unit, 220 traveling history, 230 vehicle information, 240 route determination unit, 250 vehicle information collection unit, 260 device communication unit, 270 display Unit, 300 network, 400 mobile terminal device, 410 display unit, 440 device communication unit, 500, 501, 502, 503 warning notification system, 901 arithmetic device, 902 external storage device, 903 main storage device, 904 communication device, 905 input Output device
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Abstract
Description
車両の移動ルートを示す移動ルート情報を取得するルート取得部と、
前記移動ルートが走り慣れたルートであるか否かを判定するルート判定部と、
前記ルート判定部により前記移動ルートが走り慣れたルートであると判定された場合に、前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とを取得する状況取得部と、
前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とに基づいて、前記移動ルートに関連付けられた事象に関する警告を通知するか否かを判定する警告判定部とを備えることを特徴とする。
ルート取得部が、車両の移動ルートを示す移動ルート情報を取得し、
ルート判定部が、前記移動ルートが走り慣れたルートであるか否かを判定し、
状況取得部が、前記ルート判定部により前記移動ルートが走り慣れたルートであると判定された場合に、前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とを取得し、
警告判定部が、前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とに基づいて、前記移動ルートに関連付けられた事象に関する警告を通知するか否かを判定することを特徴とする。
車両の移動ルートを示す移動ルート情報を取得するルート取得処理と、
前記移動ルートが走り慣れたルートであるか否かを判定するルート判定処理と、
前記ルート判定処理により前記移動ルートが走り慣れたルートであると判定された場合に、前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とを取得する状況取得処理と、
前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とに基づいて、前記移動ルートに関連付けられた事象に関する警告を通知するか否かを判定する警告判定処理とをコンピュータに実行させる。
図1は、本実施の形態に係る警告通知システム500のブロック構成の一例を示すブロック構成図である。
警告通知システム500は、車両を運転する運転者に対し、これから走行する予定の移動ルートにおける危険情報などに関する警告を通知し、運転を支援する運転支援システムである。
図1を用いて、本実施の形態に係る警告通知システム500のブロック構成について説明する。
サーバ装置100は、車両に搭載される車載装置200とネットワーク300を介して接続され、車両に警告を通知する警告通知装置の一例である。
ルート判定部240は、例えば、車両が移動ルートを過去の所定期間内(例えば、過去1年以内など)に走行したことがあるか否かによって慣れた道か否かを判定する。あるいは、ルート判定部240は、過去の所定期間内に所定回以上走行したことがあるかによって慣れた道か否かを判定してもよい。
車両情報記憶部は、車両情報収集部250により収集された情報を車両情報230として記憶装置に記憶する。
また、装置通信部260は、サーバ装置100の送信部190から、警告情報を受信する。
表示部270は、装置通信部260により受信された警告情報に基づいて、警告を表示装置に表示する。警告の通知については、映像の表示に限らず、音声通知でもいいし、振動による通知でもいいし、これらの組み合わせであってもよい。
例えば、警告通知システム500では、運転者が車載装置200のナビゲーション機能により移動ルートを設定すると、所定間隔ごとに車両情報230がサーバ装置100に送信されるとしてもよい。また、車両走行中に危険事象が発生した場合には、所定間隔でなくても危険事象に関する危険情報を含む車両情報230を送信するとしてもよい。
図2は、本実施の形態に係る車両情報230の構成の一例を示す図である。
車両状態管理部は、受信した車両情報230を車両識別子ごとに記憶装置に記憶し、車両状態情報140とする。あるいは、車両状態管理部は、受信した車両情報230をそのまま記憶装置に蓄積してもよい。
図3に示すように、環境状況情報150は、天候情報151、渋滞情報152、工事情報153などが含まれる。天候情報151、渋滞情報152、工事情報153などの環境状況情報150は、車両から受信する車両情報230に基づいて取得してもよい。
例えば、環境状況管理部は、車載装置200から受信した車両情報230に基づいて、地図上の位置における渋滞位置を検知するものとしてもよい。あるいは、外部の天候データベース、道路情報データベース、工事情報データベースなどから取得してもよい。
また、外部の天候データベース、道路情報データベース、工事情報データベースのみを利用する場合には、環境状況情報150はなくてもよい。
受信部110は、車載装置200からネットワーク300を介して、車両の移動ルートを示す移動ルート情報を受信する。移動ルート情報とは、移動ルートを示す位置情報である。
危険情報は、危険事象を表す事象情報と、この危険事象の位置である危険位置(事象の位置の一例)を表す事象位置情報とを含む情報である。危険位置は、例えば、過去にこの危険事象が発生した位置である。
危険管理情報130は、例えば、飛び出し注意という危険事象と、飛び出しが発生した地点を示す危険位置とが対応付けられた情報である。
状況取得部160は、車両状態情報140と環境状況情報150とに基づいて、通常走行状況と現状走行状況とを取得する。状況取得部160が通常走行状況及び現状走行状況を取得する方法については、後で詳しく説明する。
上述した走行状況の例示は、一例であり、車両が移動ルートを走行する際の状況を表すものであれば、その他の状況でもよい。
図4に示すように、通知判定条件情報180には、慣れた道での危険事象と、この危険事象に関する警告を通知するか否かを判定するための通知判定条件181とが設定される。
図4に示すように、通知判定条件情報180には、慣れた道での危険事象に対して、通常時(過去時点)より速度が速い場合に通知するか否か、通常時と時間帯が相違する場合に通知するか否か、通常時より乗車人数が多い場合に通知するか否か、通常時から地図更新がされた場合に通知するか否か、通常時より荒天の場合に通知するか否か、の複数の通知判定条件181が設定される。
通知判定条件181は、通常時と現在との走行状況の相違に関する判定情報に基づいて、警告を通知するか否かを判定することができるものであれば、図4に記載された条件以外の条件でも構わない。
例えば、通常通知が警告を表示装置に通常の表示の仕方で表示するものとすると、強調表示は、例えば、警告を点滅させたり、アラームとともに表示したりして、通常通知の場合よりもより警告を強調する。
警告判定部170は、通常走行状況と現在走行状況とを含む判定情報、つまり、「通常と時間帯が相違」という情報を取得する。
警告判定部170は、通知判定条件情報180に基づいて、危険事象「飛び出し注意」については、通常時は日中(11時から12時)の走行であり危険度は低いが、現在は朝(7時から8時)の走行であり危険度は高いため、警告を強調表示すると判定する。
警告判定部170は、通知判定条件情報180に基づいて、危険事象「急カーブ」については時間帯による危険度の増加はないと考えられるため、警告を通知しないと判定する。
なお、このとき、さらに、通常走行状況として「通常時は乗車人数は1人」を取得し、現在走行状況として「現状は乗車人数は6人」を取得したとする。この場合は、時間帯の条件による警告通知は「-(通知しない)」であるが、乗車人数の増加による警告通知は「○(通常通知)」であるため、警告を通常表示すると判定する。これは、車両の重みが増加し、通常よりも現状の方が急カーブによる危険度が増加するため、警告を通知する必要があると判断されるためである。
送信部190は、警告判定部170から取得した警告情報を、ネットワーク300を介して車載装置200に送信する。
本実施の形態では、警告判定部170と送信部190とは異なるブロック構成としているが、1つのブロックで警告判定部170と送信部190との機能を実現しても構わない。なお、ここでは通知判定条件181には優先度を持たせるため「◎」、「○」、「-」のように分類したが、必ずしもこのように分類する必要はなく、単に「○」(通知する)と「-」(通知しない)のように分類してもよい。
図5を用いて、サーバ装置100、車載装置200のハードウェア構成例について説明する。
サーバ装置100、車載装置200のハードウェア構成としては、バスに、演算装置901、外部記憶装置902、主記憶装置903、通信装置904、入出力装置905が接続されている。
外部記憶装置902は、例えばROM(Read・Only・Memory)やフラッシュメモリ、ハードディスク装置である。
主記憶装置903は、RAM(Random・Access・Memory)である。
通信装置904は、例えば通信ボード等であり、LAN(Local・Area・Network)等に接続されている。通信装置904は、LANに限らず、IP-VPN(Internet・Protocol・Virtual・Private・Network)、広域LAN、ATM(Asynchronous・Transfer・Mode)ネットワークといったWAN(Wide・Area・Network)、或いは、インターネットに接続されていても構わない。LAN、WAN、インターネットは、ネットワークの一例である。
入出力装置905は、例えばマウス、キーボード、ディスプレイ装置等である。マウスの代わりに、タッチパネル、タッチパッド、トラックボール、ペンタブレット、或いは、その他のポインティングデバイスが用いられてもよい。ディスプレイ装置は、LCD(Liquid・Crystal・Display)、CRT(Cathode・Ray・Tube)、或いは、その他の表示装置でもよい。ディスプレイ装置は、実施の形態で説明する表示部270の一例である。
プログラムは、ブロック構成図に示す「~部」として説明している機能を実現するプログラムである。
プログラムプロダクト(コンピュータプログラムプロダクト)は、ブロック構成図に示す「~部」の機能を実現するプログラムが記録された記憶媒体、記憶装置などから構成される。プログラムプロダクトは、外観に関わらず、コンピュータ読み取り可能なプログラムをロードしているものである。
また、アプリケーションプログラムも外部記憶装置902に記憶されており、主記憶装置903にロードされた状態で、順次演算装置901により実行される。例えば、受信部110、事象取得部120、状況取得部160、警告判定部170、送信部190の機能を実現するプログラムと、危険管理情報130、車両状態情報140、環境状況情報150、通知判定条件情報180とが外部記憶装置902に記憶され、演算装置901が、外部記憶装置902に記憶された各種情報を用いて上記プログラムを実行することにより、処理を実現する。つまり、演算装置901であるハードウェアと上記プログラムであるソフトウェアとを組み合わせることにより、図1のブロック構成図に示す「~部」の機能を実現する。換言すると、演算装置901は、図1のブロック構成図に示す「~部」の機能を実現するようプログラムされているとも言える。なお、これら機能は、ハードウェアとソフトウェアとの組み合わせに限らず、演算装置901に上記プログラムをインプリメントし、ハードウェア単体で実現するようにしてもよい。
また、サーバ装置100、車載装置200が受信したデータが主記憶装置903に記憶される。
また、暗号鍵・復号鍵や乱数値やパラメータが、主記憶装置903に記憶されてもよい。
図6を用いて、本実施の形態に係る警告通知システム500における警告通知方法(処理、工程)の動作について説明する。
S101において、車載装置200のルート取得部210は、車両の走行ルートを移動ルートとして取得する。ルート取得部210は、ユーザがナビゲーション装置である車載装置200に設定した行先に基づいて、車両の現在地から行先までの移動ルートを取得する。或いは、ルート取得部210は、車両の現在地から所定の範囲内にある道路を移動ルートとして取得してもよい。或いは、ルート取得部210は、過去の走行ルートの傾向から移動ルートを取得してもよい。
S201において、車載装置200のルート判定部240は、走行履歴220に基づいて、移動ルートが車両の運転者にとって慣れた道であるか否かを処理装置により判定する。
例えば、ルート判定部240は、走行履歴220を用いて、車両が移動ルートを過去に走行したか否かを判定し、過去に走行したことがある場合に移動ルートを慣れた道であると判定する。あるいは、ルート判定部240は、走行履歴220を用いて、移動ルートの走行回数をカウントし、走行回数が閾値以上である場合に移動ルートを慣れた道であると判定する。あるいは、ルート判定部240は、移動ルートが運転者の自宅から所定距離の範囲内である場合に、移動ルートを慣れた道であると判定してもよい。
ルート判定部240が移動ルートを慣れていない道であると判定した場合、処理を終了する。ただし、ルート判定部240が移動ルートを慣れていない道であると判定した場合には、警告を通知しないわけではなく、通常の警告通知処理を実行し、適切な警告を通知する。
車載装置200の装置通信部260は、ルート取得部210により取得された移動ルートと、ルート判定部240により取得された通常走行時間帯と、今回移動ルートを走行する時間帯である現状走行時間帯とを、ネットワーク300を介してサーバ装置100に送信する。
S201において、サーバ装置100の受信部110は、車載装置200の装置通信部260から、移動ルート、通常走行時間帯、現状走行時間帯を、ネットワーク300を介して受信する。
S202において、事象取得部120は、受信部110が受信した移動ルートと、危険管理情報130とに基づいて、移動ルートに関連付けられた危険事象を表す危険情報を取得する。
例えば、事象取得部120は、移動ルート上に飛び出し注意の危険位置Aを危険情報として取得したものとする。
S203において、状況取得部160は、事象取得部120が取得した危険情報、移動ルート、通常走行時間帯、現状走行時間帯に基づき、車両状態情報140及び環境状況情報150を用いて、通常走行状況と現状走行状況とを取得する。
状況取得部160は、車両状態情報140及び環境状況情報150から、過去時点に移動ルートを走行した車両の通常走行状況を取得する。
なお、ある運転者にとって過去時点における走行状況は1つのみとは限らない場合がある。ある移動ルートを過去に複数回走行していれば、ある時は晴れ、ある時は雨等、複数の走行状況が存在する。このような場合は、状況取得部160は、過去に移動ルートを複数回走行した場合の複数の走行状況に基づいて、通常走行状況を取得する。
例えば、状況取得部160は、車両状態情報140及び環境状況情報150から、通常走行時間帯に移動ルートを走行した車両の複数の走行状況の平均の状態を通常走行状況として取得してもよい。あるいは、状況取得部160は、過去の走行状況のうちの最新の走行状況を通常走行状況として取得してもよい。あるいは、状況取得部160は、複数の過去の走行状況から、現在の走行状況に最も近い走行状況を選択し、選択した走行状況を通常走行状況として取得してもよい。あるいは、状況取得部160は、現在の走行状況の特定の項目について、値が一致するか、値がもっとも近い過去の走行状況を通常走行状況として取得してもよい。
ここで、予め指定された範囲は、警告通知システム警告通知システム500のシステム管理者が設定することができるものとする。例えば、10メートル範囲内、50メートル範囲内、100メートル範囲内などと指定することができるものとする。
S204において、警告判定部170は、事象取得部120により取得された移動ルートの危険事象と、状況取得部160により取得された通常走行状況及び現状走行状況とに基づいて、通知判定条件情報180を参照し、警告を通知するか否かを処理装置により判定する。
次に、警告判定部170は、記憶装置から通知判定条件情報180を読み出す(ステップS204-2)。ここでは、通知判定条件情報180のうち、図4に示す危険事象「飛び出し注意」に対する通知判定条件181のうち「通常と時間帯が相違」、「通常より速さが速い」、「通常より乗車人数多い」に関する個所を読み出す。
次に、警告判定部170は、通知判定条件情報を参照し、危険事象に対する通知判定条件を満たすかを判断する(ステップS204-3)。ここでは、通常走行状況が「通常走行時間帯は12時から13時(日中)」で、現状走行状況が「現状走行時間帯は7時から8時(朝方)」のため、通知判定条件181「通常と時間帯が相違」を満たす。
警告判定部170は、他の通知判定条件181が残っているかを判断し(ステップS204-4)、残っていない場合はステップS204-5へ進み、残っている場合はステップS204-3に戻る。ここでは、残りの通知判定条件181が残っているため、これらについてステップS204-3を実施する。通常走行状況が「時速30キロメートル」で、現状走行状況が「時速50キロメートル」のため、通知判定条件181「通常より速さが速い」を満たす。また、通常走行状況が「乗車人数1人」で、現状走行状況が「乗車人数5人」のため、通知判定条件181「通常より乗車人数多い」を満たす。
次に、警告判定部170は、警告を通知するか否かを判定する(ステップS204-5)。ここでは、通知判定条件181「通常と時間帯が相違」、「通常より速さが速い」、「通常より乗車人数多い」の全てを満たす。図4に示すように、通知判定条件181「通常より乗車人数多い」は危険事象「飛び出し注意」に対しては通知なし「-」であるが、通知判定条件181「通常と時間帯が相違」、「通常より速さが速い」に関しては強調表示「◎」であるため、警告判定部170は、危険事象「飛び出し注意」に関する警告を強調表示により運転手等に通知すると判定する。なお、警告の通知については、映像の表示に限らず、音声通知でもいいし、振動による通知でもいいし、これらの組み合わせであってもよい。
なお、ここでは、警告判定部170は、ステップS204-1で危険事象、過去の走行状況である通常走行状況、及び、現在の走行状況である現状走行状況を取得した後、通知判定条件情報の読み出しを行っているが、これに限らない。例えば、警告判定部170は、移動ルートの通常走行状況と現状走行状況とが相違するか否かを先に判定し、相違する場合にステップS204-2以降の処理、すなわち警告を通知するか否かの判定処理を行うようにしてもよい。そうすることで、過去の走行状況と現在の走行状況とに相違がない場合には、通知判定条件情報の読み出しをはじめとするステップS204-2以降の処理を省略することができ、処理負担を下げることができる。
警告判定部170は、警告の通知をすると判定した場合には(S204で通知する)、S205に進む。
送信部190は、警告判定部170から警告を表示するための警告情報を受け取る。警告情報には、警告の内容を示す情報と、警告の通知の強弱を示す情報とが含まれる。
例えば、警告判定部170が、危険位置A近傍において警告「飛び出し注意」の強調通知をすると判定する。警告判定部170は、送信部190に対し、警告「飛び出し注意」と強調通知とを含む警告情報を出力する。
車載装置200の装置通信部260は、サーバ装置100の送信部190から、警告情報を受信する。
表示部270は、装置通信部260により受信された警告情報に基づいて、表示装置に警告を表示する。警告を通知する方法としては、表示装置に表示する方法以外に、例えば、音声により警告を通知してもよい。通常通知の場合は、「スリップに注意してください」等のアナウンスを音声出力し、強調通知の場合は、「危険です!危険です!前方追突注意!」等と緊迫感のあるアナウンスを音声出力してもよい。また、振動により警告を通知し、通常通知の場合は通常の振動、強調通知の場合は通常の振動よりも強い振動として警告を通知してもよい。また、音声、表示装置への表示、振動を組み合わせて通知してもよい。
しかし、優先度の設定方法として、例えば、複数の通知判定条件181のそれぞれに、複数の通知判定条件181のそれぞれの優先度を表す優先度情報を付与してもよい。そして、警告判定部170は、複数の通知判定条件181のそれぞれに付与された優先度に基づいて、複数の通知判定条件181から少なくとも1つの通知判定条件181を選択し、選択した少なくとも1つの通知判定条件181に基づいて、通知判定処理を実行するものとしてもよい。
本実施の形態では、主に、実施の形態1と異なる点について説明する。
本実施の形態において、実施の形態1で説明した構成部と同様の機能を有する構成部については同一の符号を付し、その説明を省略する場合がある。
本実施の形態では、サーバ装置100が事象取得部120及び状況取得部160で取得した危険情報、通常走行状況及び現状走行状況を車載装置200に送信し、車載装置200が警告の通知の要否を判定する方式について説明する。車載装置200は、警告の通知の要否を判定する警告通知装置の一例である。
図8に示すように、車載装置200は、実施の形態1で説明した構成に加え、警告判定部170及び通知判定条件情報180を有する。そして、実施の形態1で説明した構成と異なり、サーバ装置100が警告判定部170及び通知判定条件情報180を有していない。
警告判定部170及び通知判定条件情報180の機能構成については、実施の形態1で説明したものと同様である。
図9を用いて、警告通知システム501における警告通知方法の動作の一例について説明する。
S103aにおいて、装置通信部260は、サーバ装置100から危険情報と通常走行状況及び現状走行状況とを受信する。
S103bの処理は、実施の形態1の図6で説明したS204と同様である。すなわち、車載装置200の警告判定部170は、装置通信部260を介して危険情報と通常走行状況及び現状走行状況とを取得する。警告判定部170は、通常走行状況及び現状走行状況に基づいて通知判定条件情報180を参照し、危険事象の警告の要否を判定する。そして、警告判定部170は、通知すると判定した場合に、警告の内容と通知の方法とを含む警告情報を表示部270に対して出力する。
S104において、表示部270は、警告情報に従って、警告を表示装置に表示する。S104の処理は、実施の形態1の図6で説明したS104と同様の処理である。
本実施の形態では、主に、実施の形態1,2と異なる点について説明する。
本実施の形態において、実施の形態1,2で説明した構成部と同様の機能を有する構成部については同一の符号を付し、その説明を省略する場合がある。
本実施の形態では、サーバ装置100が事象取得部120及び状況取得部160で取得した危険情報、通常走行状況及び現状走行状況を携帯端末装置400に送信し、携帯端末装置400が警告の通知の要否を判定する方式について説明する。また、携帯端末装置400は、移動ルートが慣れた道かを判定する機能も有するものとする。携帯端末装置400は、警告の通知の要否を判定する警告通知装置の一例である。
図10に示すように、警告通知システム502は、サーバ装置100、車載装置200、携帯端末装置400を備える。サーバ装置100、車載装置200、携帯端末装置400は、互いにネットワーク300を介して接続されている。
表示部410は、携帯端末装置400がナビゲーション装置として機能する場合の地図情報、行先情報などを表示装置に表示する。また、表示部410は、警告判定部170により通知が必要と判定された警告を表示装置に表示する。
装置通信部440は、携帯端末装置400と、この携帯端末装置400とネットワーク300を介して接続されたサーバ装置100、車載装置200との通信を実行する。
図11を用いて、警告通知システム502における警告通知方法の動作の一例について説明する。
図11において、S301~S303の処理は、実施の形態1の図6で説明したS101~S103と同様である。
或いは、警告判定部170は、警告を通知すると判定した場合に、警告情報を表示部410に出力するとともに、車載装置200に対して送信してもよい。
例えば、警告通知システムにおいて、事象取得部と状況取得部とを1つの機能ブロックとし、判定部と通信部とを1つの機能ブロックとしてもよい。
例えば、ルート判定部240と走行履歴220とがサーバ装置100に配置されていてもよい。この場合、車両側からサーバ装置に通常走行の時間帯を通知する必要はない。
なお、以上の実施の形態は、本質的に好ましい例示であって、本発明、その適用物や用途の範囲を制限することを意図するものではなく、矛盾しない範囲であれば必要に応じて種々の変更が可能である。
Claims (18)
- 車両の移動ルートを示す移動ルート情報を取得するルート取得部と、
前記移動ルートが走り慣れたルートであるか否かを判定するルート判定部と、
前記ルート判定部により前記移動ルートが走り慣れたルートであると判定された場合に、前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とを取得する状況取得部と、
前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とに基づいて、前記移動ルートに関連付けられた事象に関する警告を通知するか否かを判定する警告判定部と
を備えることを特徴とする警告通知システム。 - 前記警告判定部は、前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とが相違する場合に、前記事象に関する警告を通知するか否かを判定することを特徴とする請求項1に記載の警告通知システム。
- 前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とが相違する場合に警告を通知するか否かを決定するための通知判定条件を前記事象と対応付けて記憶する通知判定条件記憶部を備え、
前記警告判定部は、前記通知判定条件に基づいて前記事象に関する警告を通知するか否かを判定することを特徴とする請求項1または2に記載の警告通知システム。 - 前記事象には複数の前記通知判定条件が対応づけられることを特徴とする請求項3に記載の警告通知システム。
- 前記通知判定条件には警告の優先度が付与され、
前記警告判定部は、前記優先度に基づき複数の前記通知判定条件のうち少なくとも1つの前記通知判定条件を選択し、選択した前記通知判定条件に基づいて前記事象に関する警告を通知するか否かを判定することを特徴とする請求項4に記載の警告通知システム。 - 前記ルート判定部は、前記車両が過去に前記移動ルートを走行した場合に前記移動ルートが走り慣れたルートであると判定することを特徴とする請求項1から5のいずれか1項に記載の警告通知システム。
- 前記ルート判定部は、前記移動ルートが自宅周辺にある場合に、前記移動ルートが走り慣れたルートであると判定することを特徴とする請求項1から6のいずれか1項に記載の警告通知システム。
- 前記状況取得部は、
前記車両が過去に前記移動ルートを複数回走行した場合の複数の走行状況に基づいて、前記過去の走行状況を取得することを特徴とする請求項1から7のいずれか1項に記載の警告通知システム。 - 前記走行状況は前記車両の状態であることを特徴とする請求項1から8のいずれか1項に記載の警告通知システム。
- 前記走行状況は前記車両の周囲の環境であることを特徴とする請求項1から9のいずれか1項に記載の警告通知システム。
- 前記状況取得部は、
前記移動ルートのうち前記事象の位置を含む事象範囲における過去の走行状況と、前記事象範囲における現在の走行状況とを取得することを特徴とする請求項1から10のいずれか1項に記載の警告通知システム。 - 前記ルート取得部と前記ルート判定部と前記状況取得部と前記警告判定部とは、前記車両に搭載される車載装置と通信可能なサーバ装置に設けられることを特徴とする請求項1から11のいずれか1項に記載の警告通知システム。
- 前記ルート取得部と前記ルート判定部と前記状況取得部と前記警告判定部とは、前記車両に搭載される車載装置に設けられることを特徴とする請求項1から11のいずれか1項に記載の警告通知システム。
- 前記警告通知システムは、サーバ装置と、前記車両に搭載され、前記サーバ装置と通信する車載装置とを備え、
前記ルート取得部と前記ルート判定部とは、前記車両に搭載される車載装置に設けられ、前記状況取得部と前記警告判定部とは、前記車載装置と通信可能なサーバ装置に設けられることを特徴とする請求項1から11のいずれか1項に記載の警告通知システム。 - 前記ルート取得部と前記ルート判定部と前記状況取得部と前記警告判定部とは、ユーザが携帯する携帯端末装置に設けられることを特徴とする請求項1から11のいずれか1項に記載の警告通知システム。
- 前記ルート取得部と前記ルート判定部と前記警告判定部とは、ユーザが携帯する携帯端末装置に設けられ、前記状況取得部は、前記携帯端末装置と通信可能なサーバ装置に設けられることを特徴とする請求項1から11のいずれか1項に記載の警告通知システム。
- ルート取得部が、車両の移動ルートを示す移動ルート情報を取得し、
ルート判定部が、前記移動ルートが走り慣れたルートであるか否かを判定し、
状況取得部が、前記ルート判定部により前記移動ルートが走り慣れたルートであると判定された場合に、前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とを取得し、
警告判定部が、前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とに基づいて、前記移動ルートに関連付けられた事象に関する警告を通知するか否かを判定する
ことを特徴とする警告通知システムの警告通知方法。 - 車両の移動ルートを示す移動ルート情報を取得するルート取得処理と、
前記移動ルートが走り慣れたルートであるか否かを判定するルート判定処理と、
前記ルート判定処理により前記移動ルートが走り慣れたルートであると判定された場合に、前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とを取得する状況取得処理と、
前記移動ルートの過去の走行状況と前記移動ルートの現在の走行状況とに基づいて、前記移動ルートに関連付けられた事象に関する警告を通知するか否かを判定する警告判定処理と
をコンピュータに実行させるプログラム。
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US15/329,182 US20170219375A1 (en) | 2014-08-06 | 2014-08-06 | Warning notification system, warning notification method, and computer readable medium |
DE112014006858.6T DE112014006858T5 (de) | 2014-08-06 | 2014-08-06 | Warnungsmeldungssystem, Warnungsmeldungsverfahren und Programm |
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JP2018101321A (ja) * | 2016-12-21 | 2018-06-28 | パイオニア株式会社 | 報知装置 |
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