JP6791933B2 - Information provision system, information provision method, and computer program - Google Patents

Description

The present invention relates to an information providing system, an information providing method, and a computer program.

In recent years, a system has been introduced in which information on the weather detected by various sensors is transmitted to a server via a communication network, and the server transmits the received information on the weather and its accompanying information to another vehicle via the communication network. Proposed.
For example, in Non-Patent Document 1, the vehicle not only detects information such as slipperiness of the road surface based on the wheel speed signal and provides the detected information to the passengers of the own vehicle, but also via a communication network. It is disclosed that it will be delivered to other vehicles.

Further, in Patent Document 1, the vehicle transmits the detected information indicating the wobbling of the own vehicle to the server via the communication network, and the server generates a crosswind based on the received information indicating the wobbling and the map information. An information system that identifies a position and transmits the position of occurrence to another vehicle via a communication network is disclosed.

Sumitomo Rubber Industries, Ltd., "Development of tire sensing technology" SENSING CORE "", [online], May 16, 2017, [Search on August 27, 2018], Internet <http://www.srigroup.co .jp / newsrelease / 2017 / sri / 2017_054.html ＞

Japanese Unexamined Patent Publication No. 2014-141191 Japanese Unexamined Patent Publication No. 2001-247027

In the above system, if there is a road section where the traveling speed of the vehicle is significantly reduced due to a slippery road surface or a strong crosswind, or a road section where the vehicle cannot travel, such a road section is avoided. It is desirable to be able to provide the passengers of the vehicle with a safe driving route.

In view of such circumstances, it is an object of the present invention to provide the passengers of a vehicle with information on a traveling route avoiding a road section in which the traveling of the vehicle is hindered by weather conditions.

The information providing system according to one aspect of the present invention includes a first vehicle-mounted terminal mounted on the first vehicle, a second vehicle-mounted terminal mounted on the second vehicle, and the first vehicle-mounted terminal and the second vehicle-mounted terminal, respectively. An information providing system including a communication information providing device, wherein the first in-vehicle terminal transmits weather-related information regarding the weather conditions around the first vehicle and position information of the first vehicle to the outside. The second vehicle-mounted terminal includes one vehicle-mounted communication unit, and the second vehicle-mounted terminal includes a second vehicle-mounted communication unit that transmits route information that can identify a traveling route from the departure point to the destination of the second vehicle to the outside, and provides the information. The device receives the weather-related information and the position information from the first vehicle-mounted communication unit, and receives the route information from the second vehicle-mounted communication unit, and the device is based on the weather-related information and the position information. , A specific unit that identifies a road section that hinders the running of a vehicle due to the weather conditions, a determination unit that determines whether or not the travel route includes the road section based on the route information, and the determination. When the determination result of the unit is affirmative, the alternative route information regarding the alternative travel route avoiding the road section is generated for the travel route, and the generated alternative route information is transmitted to the second vehicle-mounted terminal. It is an information providing system including a processing unit that controls a communication unit.

The information providing method according to one aspect of the present invention is an information providing method executed by an information providing device that communicates with each of the first in-vehicle terminal mounted on the first vehicle and the second in-vehicle terminal mounted on the second vehicle. Therefore, the weather-related information regarding the weather conditions around the first vehicle and the position information of the first vehicle are received from the first vehicle-mounted terminal, and the departure point of the second vehicle is received from the second vehicle-mounted terminal. A receiving step for receiving route information capable of specifying a traveling route from to a destination, and a specific step for identifying a road section in which the traveling of a vehicle is hindered by the weather conditions based on the weather-related information and the position information. And, based on the route information, a determination step for determining whether or not the travel route includes the road section, and when the determination result of the determination step is affirmative, the road section is selected for the travel route. This is an information providing method including a generation step of generating alternative route information regarding the avoided alternative traveling route and controlling communication so that the generated alternative route information is transmitted to the second vehicle-mounted terminal.

The computer program according to one aspect of the present invention is a computer for functioning as an information providing device that communicates with each of a first in-vehicle terminal mounted on a first vehicle and a second in-vehicle terminal mounted on a second vehicle. In the program, the computer receives the weather-related information regarding the weather conditions around the first vehicle and the position information of the first vehicle from the first vehicle-mounted terminal, and receives the position information of the first vehicle from the second vehicle-mounted terminal. 2 A communication unit that receives route information that can identify the travel route from the departure point to the destination of the vehicle, and a road section in which the vehicle's travel is hindered by the weather conditions based on the weather-related information and the position information. When the determination result of the specific unit for specifying the above, the determination unit for determining whether or not the travel route includes the road section based on the route information, and the determination result of the determination unit are positive, the travel route A computer program for generating alternative route information related to an alternative traveling route avoiding the road section and functioning as a processing unit for controlling the communication unit so as to transmit the generated alternative route information to the second in-vehicle terminal. Is.

According to the present invention, it is possible to provide the passengers of a vehicle with information on a traveling route avoiding a road section in which the traveling of the vehicle is hindered by weather conditions.

It is an overall block diagram of the information provision system which concerns on embodiment of this invention. It is a block diagram which shows an example of the internal structure of an in-vehicle terminal. It is a flowchart which shows the process which the information providing apparatus executes. It is explanatory drawing which shows the service example of the information provision system.

[Explanation of Embodiments of the Present Invention]
First, the contents of the embodiments of the present invention will be listed and described.
(1) The information providing system according to the embodiment of the present invention includes a first vehicle-mounted terminal mounted on the first vehicle, a second vehicle-mounted terminal mounted on the second vehicle, and the first vehicle-mounted terminal and the second vehicle-mounted terminal. An information providing system including an information providing device that communicates with each of the terminals, wherein the first in-vehicle terminal transmits weather-related information regarding the weather conditions around the first vehicle and the position information of the first vehicle to the outside. The second vehicle-mounted terminal includes a first vehicle-mounted communication unit for transmitting, and the second vehicle-mounted terminal includes a second vehicle-mounted communication unit that transmits route information that can identify a traveling route from the departure point to the destination of the second vehicle to the outside. The information providing device receives the weather-related information and the position information from the first vehicle-mounted communication unit, and also receives the route information from the second vehicle-mounted communication unit, and the weather-related information and the position information. Based on the above, a specific unit that identifies a road section that hinders the traveling of the vehicle due to the weather conditions, and a determination unit that determines whether or not the traveling route includes the road section based on the route information. If the determination result of the determination unit is affirmative, the alternative route information regarding the alternative travel route avoiding the road section is generated for the travel route, and the generated alternative route information is transmitted to the second vehicle-mounted terminal. A processing unit that controls the communication unit is provided.

According to the information providing system, the information providing device receives the weather-related information regarding the weather conditions around the first vehicle and the position information of the first vehicle from the first in-vehicle terminal, and is based on the weather-related information and the position information. The road section in which the traveling of the vehicle is hindered by the weather conditions is specified. Then, when the specified road section is included in the traveling route from the departure point to the destination of the second vehicle, the information providing device provides alternative route information regarding the alternative traveling route avoiding the road section for the traveling route. Is transmitted to the second in-vehicle terminal of the second vehicle. Thereby, the alternative route information regarding the alternative traveling route can be provided to the passenger of the second vehicle.

(2) The weather-related information preferably includes information indicating a friction coefficient between the road surface and the tire of the first vehicle.
In this case, the information providing device can identify a road section in which the tires are likely to slip due to freezing of the road surface, rainwater on the road surface, or the like, based on the information indicating the friction coefficient between the road surface and the tires. As a result, it is possible to provide the passengers of the second vehicle with alternative route information regarding the alternative traveling route avoiding the road section where the tires are likely to slip.

(3) The weather-related information may include information indicating the strength of the crosswind with respect to the first vehicle.
In this case, the information providing device can identify the road section in which the vehicle is likely to sway due to the crosswind based on the information indicating the strength of the crosswind. As a result, it is possible to provide the passengers of the second vehicle with alternative route information regarding the alternative traveling route that avoids the road section in which the vehicle tends to sway due to crosswinds.

(4) The alternative route information preferably includes information indicating the alternative travel route and information indicating the road section included in the travel route.
In this case, the information providing device transmits not only the information indicating the alternative traveling route but also the information indicating the road section included in the traveling route to the second vehicle-mounted terminal. As a result, the passenger of the second vehicle grasps that the traveling route to the destination includes a road section in which the traveling of the vehicle is hindered by the weather condition, based on the information indicating the road section. be able to.

(5) When the determination result of the determination unit is negative, the processing unit generates information indicating that the road section is not included in the traveling route, and transmits the generated information to the second vehicle-mounted terminal. It is preferable to control the communication unit so as to transmit.
In this case, the information providing device includes the road section in the traveling route unless the traveling route from the starting point to the destination of the second vehicle includes a road section in which the traveling of the vehicle is hindered by the weather conditions. Information indicating that it is not included is transmitted to the second vehicle-mounted terminal of the second vehicle. As a result, the passenger of the second vehicle grasps that the traveling route from the second in-vehicle terminal to the destination does not include a road section that hinders the traveling of the vehicle due to weather conditions. can do.

(6) The communication unit receives the weather-related information and the position information from the first vehicle-mounted terminals mounted on the plurality of the first vehicles, and also receives the weather-related information and the position information from the second vehicle-mounted terminals mounted on the plurality of the second vehicles. Upon receiving the route information, the specific unit identifies a road section in which the vehicle travel is hindered by the weather conditions based on the plurality of weather-related information and the position information, and the determination unit has a plurality of determination units. Based on the route information, it is determined whether or not the road section is included in the traveling route of each of the plurality of second vehicles, and the processing unit determines that the determination result of the determination unit is positive. It is preferable to control the communication unit so as to generate the alternative route information for the traveling route and transmit the generated alternative route information to the corresponding second vehicle-mounted terminal.
In this case, the information providing device provides the passengers of each of the plurality of second vehicles with alternative route information corresponding to the second vehicle, based on the weather-related information and the position information received from the plurality of first vehicles. be able to.

(7) The information providing method according to the embodiment of the present invention is an information providing method executed by the information providing device constituting the above-mentioned information providing system. Therefore, the information providing method of the present embodiment has the same effect as the above-mentioned information providing system.

(8) The computer program according to the embodiment of the present invention is a computer program for causing a computer to function as an information providing device constituting the above-mentioned information providing system. Therefore, the computer program of the present embodiment has the same function and effect as the above-mentioned information providing system.

[Details of Embodiments of the present invention]
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, at least a part of the embodiments described below may be arbitrarily combined.
[Overall configuration of information provision system]
FIG. 1 is an overall configuration diagram of an information providing system according to an embodiment of the present invention. As shown in FIG. 1, the information providing system 1 of the present embodiment includes a first vehicle-mounted terminal 3A mounted on the first vehicle 2A, a second vehicle-mounted terminal 3B mounted on the second vehicle 2B, a traffic control center, and the like. The information providing device 6 installed in the above is provided. The information providing device 6 can communicate with a plurality of first vehicle-mounted terminals 3A and a plurality of second vehicle-mounted terminals 3B via a public communication network 7 including the Internet or the like.

The information providing device 6 of the present embodiment is based on the weather-related information regarding the weather conditions around the first vehicle 2A and the position information of the first vehicle 2A received from the first vehicle-mounted terminal 3A, and the information providing device 6 of the vehicle is based on the weather conditions. Identify road sections that interfere with driving. Then, when the information providing device 6 receives the route information capable of specifying the traveling route from the departure point to the destination of the second vehicle 2B from the second vehicle-mounted terminal 3B, the traveling route includes the road section. In this case, it is possible to execute an alternative route information providing service that transmits alternative route information regarding the alternative traveling route to the second vehicle-mounted terminal 3B.

In the present specification, the term "vehicle" refers to all vehicles that can pass on the road, and includes vehicles under the Road Traffic Act (automobiles, motorized bicycles, light vehicles, trolley buses, etc.), as well as motorcycles and the like. Is done. Hereinafter, when the common matters of the first vehicle 2A and the second vehicle 2B are explained, they are collectively referred to as the vehicle 2.
The "vehicle-mounted terminal" is a terminal device mounted on a vehicle capable of communicating with the information providing device 6, and is, for example, a car navigation device in which an application for using alternative route information received from the information providing device 6 is installed. Consists of. Hereinafter, when the common items of the first vehicle-mounted terminal 3A and the second vehicle-mounted terminal 3B are described, they are collectively referred to as the vehicle-mounted terminal 3.

[Internal configuration of in-vehicle terminal]
FIG. 2 is a block diagram showing an example of the internal configuration of the in-vehicle terminal 3. As shown in FIG. 2, the in-vehicle terminal 3 includes a control unit (ECU: Electronic Control Unit) 30, a GPS receiver 31, a gyro sensor 32, a wheel rotation speed sensor 33, a storage unit 34, a display 35, a speaker 36, and an input device. 37, a crosswind detection sensor 38, an in-vehicle communication unit 39, and the like are provided.

The control unit 30 searches the route of the vehicle 2 and controls other electronic devices 31 to 39.
The in-vehicle communication unit 39 includes a wireless communication device having an amplifier circuit, a frequency conversion circuit, a modulation and demodulation circuit, and the like, which are necessary for wireless communication with a base station (not shown) connected to the public communication network 7.

The GPS receiver 31, the gyro sensor 32, and the wheel rotation speed sensor 33 are sensors that measure the current position, orientation, and speed of the vehicle 2.
The control unit 30 obtains the vehicle position of its own vehicle from the GPS signal periodically acquired by the GPS receiver 31. The control unit 30 complements the vehicle position and direction based on the input signals of the gyro sensor 32 and the wheel rotation speed sensor 33, and grasps the accurate current position and direction of the vehicle 2. The output signal of the wheel rotation speed sensor 33 is also used for ABS (Antilock Brake System) control.

The storage unit 34 includes a map database. The map database provides road map data to the control unit 30. The road map data includes link data and node data, and is stored in a recording medium such as a DVD, CD-ROM, memory card, or HDD. The storage unit 34 reads out necessary road map data from the recording medium and provides it to the control unit 30.

The display 35 and the speaker 36 are output devices for notifying the passengers of the vehicle 2 of various information generated by the control unit 30.
Specifically, the display 35 displays an input screen at the time of route search, a map image around the own vehicle, information on the route to the destination, and the like. The speaker 36 outputs an announcement or the like for guiding the vehicle 2 to the destination by voice. These output devices can also notify the passenger of the provided information received from the information providing device 6 by the vehicle-mounted communication unit 39.

The input device 37 is a device for the passenger of the vehicle 2 to perform various input operations. The input device 37 is a combination of an operation switch provided on the handle, a joystick, a touch panel provided on the display 35, and the like. The voice recognition device that accepts input by the voice recognition of the passenger may be the input device 37. The input signal generated by the input device 37 is transmitted to the control unit 30.

The control unit 30 is composed of an arithmetic processing unit such as a microcomputer that executes various control programs stored in the storage unit 34. By executing the above control program, the control unit 30 has a function of displaying a map image on the display 35, a function of calculating a traveling route from the starting point to the destination, and guiding the vehicle 2 to the destination according to the calculated traveling route. It is possible to execute various navigation functions such as the function to perform.

The wheel rotation speed sensor 33 is a sensor that detects the rotation speed of the wheels. The wheel rotation speed sensor 33 detects the rotation speed of the wheels at predetermined time (for example, several seconds).
The wheel rotation speed sensor 33 is a wheel speed sensor that generates rotation pulses using an electromagnetic pickup or the like to measure the rotation speed of the wheels from the number of pulses, and generates power by using rotation like a dynamo, and the voltage thereof. An angular velocity sensor or the like including one that measures the rotational speed of the wheel can be used.

Each time the wheel rotation speed sensor 33 detects the rotation speed of the wheel, the control unit 30 calculates the coefficient of friction between the road surface and the tire using a well-known analysis method based on the detected rotation speed. Based on the calculated friction coefficient, the control unit 30 causes the passengers who are driving to output a warning to an output device such as the display 35.
For example, when the friction coefficient is equal to or less than the threshold value, the control unit 30 causes the display 35 to output a warning to reduce the vehicle speed because the tires are slippery.

The crosswind detection sensor 38 is a sensor that detects crosswinds for the vehicle 2. The crosswind detection sensor 38 detects the crosswind every predetermined time (for example, several seconds).
As the crosswind detection sensor 38, a rolling sensor that detects the rolling (tilt in the left-right direction) of the vehicle 2, a lateral acceleration sensor that detects the lateral acceleration acting on the vehicle 2, and the like can be used.

Each time the crosswind detection sensor 38 detects a crosswind, the control unit 30 calculates the strength of the crosswind (for example, wind speed) based on the detected value, and based on the calculated strength of the crosswind, pays attention to the occupant during operation. The arousal is output to an output device such as the display 35.
For example, when the strength of the crosswind is equal to or higher than the threshold value, the control unit 30 causes the display 35 to output a warning to urge the reduction of the vehicle speed because the vehicle tends to sway due to the crosswind.

Each time the wheel rotation speed sensor 33 detects the rotation speed of the wheels, the control unit 30 generates information indicating the friction coefficient calculated as described above as weather-related information regarding the weather conditions around the vehicle 2. Further, each time the wheel rotation speed sensor 33 detects the rotation speed of the wheel, the control unit 30 provides information indicating the vehicle position measured by the GPS receiver 31 or the like at the time of detection of the wheel rotation speed sensor 33 in the vehicle 2 It is generated as the position information of.

Each time the crosswind detection sensor 38 detects a crosswind, the control unit 30 generates information indicating the strength of the crosswind calculated as described above as weather-related information regarding the weather conditions around the vehicle 2. Further, each time the crosswind detection sensor 38 detects a crosswind, the control unit 30 generates information indicating the vehicle position measured by the GPS receiver 31 or the like as the position information of the vehicle 2 when the crosswind detection sensor 38 detects the crosswind. To do.

The control unit 30 causes the in-vehicle communication unit 39 to transmit the generated weather-related information (information indicating the friction coefficient, information indicating the strength of the crosswind) and the position information to the information providing device 6.
Therefore, the vehicle-mounted communication unit 39 of the first vehicle-mounted terminal 3A functions as a first vehicle-mounted communication unit that transmits weather-related information regarding the weather conditions around the first vehicle 2A and the position information of the first vehicle 2A to the outside.

The control unit 30 generates information indicating the traveling route from the starting point of the vehicle 2 to the destination calculated by the above navigation function as route information capable of specifying the traveling route from the starting point to the destination of the vehicle 2. .. The control unit 30 causes the vehicle-mounted communication unit 39 to transmit the generated route information to the information providing device 6.
Therefore, the vehicle-mounted communication unit 39 of the second vehicle-mounted terminal 3B functions as a second vehicle-mounted communication unit that transmits route information that can identify the traveling route from the departure point to the destination of the second vehicle 2B to the outside.

The control unit 30 of the present embodiment causes the vehicle-mounted communication unit 39 to transmit the weather-related information, the position information, and the route information to the information providing device 6, but the control unit 30 of the first vehicle-mounted terminal 3A is at least weather-related. The information and the location information may be transmitted to the information providing device 6 by the vehicle-mounted communication unit 39. Further, the control unit 30 of the second vehicle-mounted terminal 3B may transmit at least the route information to the information providing device 6 by the vehicle-mounted communication unit 39.

[Internal configuration of information providing device]
As shown in FIG. 1, the information providing device 6 includes a communication unit 61, a storage unit 62, a control unit 63, and the like.
The communication unit 61 includes a communication device having an amplifier circuit, a frequency conversion circuit, a modulation and demodulation circuit, and the like, which are necessary for wired communication with the public communication network 7. The communication unit 61 received information (weather-related information, location information) received from the plurality of first vehicle-mounted terminals 3A via the public communication network 7 and received from the plurality of second vehicle-mounted terminals 3B via the public communication network 7. Information (route information) is given to the control unit 63. Further, the communication unit 61 can transmit the information given by the control unit 63 to the plurality of first vehicle-mounted terminals 3A and the plurality of second vehicle-mounted terminals 3B via the public communication network 7.

The storage unit 62 is made of a magnetic storage medium or a non-volatile storage medium such as a flash memory. The control unit 63 includes a microcomputer including a CPU, RAM, ROM, flash memory, and the like.
The control unit 63 realizes various processes and functions by reading and executing the computer program recorded in the storage unit 62 by the CPU. The processing executed by the control unit 63 includes, for example, a processing for identifying a road section (hereinafter referred to as a traveling obstruction section) in which the vehicle travel is hindered due to weather conditions, and an alternative route relating to an alternative traveling route avoiding the traveling obstruction section. There is a process to generate information.

The storage unit 62 stores, for example, a traffic situation map. A traffic situation map is a collection of data (virtual database) in which dynamic information that changes from moment to moment is superimposed on high-definition road map data that is static information. In the traffic condition map of the present embodiment, weather-related information and position information received from the plurality of first in-vehicle terminals 3A and information on the traveling obstacle section generated by the control unit 63 (described later) are superimposed as dynamic information. Will be done.

The control unit 63 updates the dynamic information of the traffic condition map stored in the storage unit 62 at predetermined update cycles. For example, the control unit 63 collects weather-related information and location information from a plurality of first vehicle-mounted terminals 3A at predetermined update cycles, and dynamically based on the collected weather-related information and location information, the traffic condition map is dynamic. Update the information.

[Functional configuration of the control unit of the information providing device]
In FIG. 1, the control unit 63 of the information providing device 6 includes a specific unit 631, a determination unit 632, and a processing unit 633 as a function of executing a process for transmitting alternative route information to the second vehicle-mounted terminal 3B. These functions are functions realized in the CPU of the control unit 63 by reading and executing a program of one or a plurality of computers stored in the storage unit 62. However, at least some functions may be realized by hardware such as electronic circuits.

The identification unit 631 identifies the traveling hindrance section at regular time intervals (for example, several minutes) based on the weather-related information and the position information of the traffic condition map updated during that period.
The specific unit 631 of the present embodiment includes a road section in which tires are likely to slip due to freezing of the road surface or rainwater on the road surface (hereinafter referred to as “slip section”) and a road section in which the vehicle is likely to sway due to crosswinds. (Hereinafter referred to as "crosswind section") is specified.

For example, the specific unit 631 extracts weather-related information including information indicating the friction coefficient at which the friction coefficient is equal to or less than the threshold value, and based on the position information and road map data corresponding to the extracted weather-related information, the friction coefficient. The road section where is equal to or less than the threshold is specified as the slip section.
The identification unit 631 sets the position of the specified slip section and the type of the travel hindrance as information on the travel hindrance section, and updates the dynamic information of the traffic condition map. The driving obstacle type is a type of the traveling obstacle section, and in the present embodiment, the type such as a slip section and a crosswind section is shown.

The specific unit 631 extracts weather-related information including information indicating the strength of the crosswind whose crosswind intensity is equal to or higher than the threshold value, and based on the position information and road map data corresponding to the extracted weather-related information, the crosswind A road section whose intensity is equal to or higher than the threshold value is specified as a crosswind section.
The specific unit 631 sets the position of the specified crosswind section and the type of driving obstacle as information on the traveling obstacle section, and updates the dynamic information of the traffic condition map.

When the communication unit 61 receives the route information from the vehicle-mounted communication units 39 of the plurality of second vehicle-mounted terminals 3B, the determination unit 632 acquires the route information from the communication unit 61. The determination unit 632 determines whether or not the travel hindrance section is included in the travel route from the departure point to the destination of each of the second vehicles 2B based on the acquired route information and the road map data. Based on the acquired route information, the determination unit 632 of the present embodiment determines whether or not the traveling route to the destination of the second vehicle 2B includes at least one of the slip section and the crosswind section. ..

When, for example, a slip section is included in the travel path to the destination of the second vehicle 2B, the second vehicle 2B may reduce the vehicle speed or cannot travel in order to safely travel in the slip section. You will have to turn back from the slip section to another road. Therefore, if the travel route to the destination of the second vehicle 2B includes a slip section, the arrival time of the destination will be delayed. Therefore, when there is a travel route in which the determination result of the determination unit 632 is affirmative, the processing unit 633 provides the alternative route information regarding the alternative travel route avoiding the slip section and the crosswind section for the travel route. The process for transmitting to the in-vehicle terminal 3B is executed.

Specifically, when there is a travel route for which the determination result of the determination unit 632 is affirmative, the processing unit 633 determines the travel hindrance section (slip section, crosswind section) for the travel route based on the road map data. Search for an alternative driving route that has been avoided.
The processing unit 633 generates information including information indicating the searched alternative traveling route and information indicating a traveling obstacle section included in the traveling route for which the determination result is affirmative as the alternative route information. The information indicating the traveling obstacle section includes, for example, the position of the traveling obstacle section and the type of the traveling obstacle.

The processing unit 633 controls the communication unit 61 so as to transmit the generated alternative route information to the corresponding second vehicle-mounted terminal 3B. It should be noted that the alternative route information may include at least information indicating an alternative travel route.

On the other hand, when the determination result of the determination unit 632 is negative, the processing unit 633 generates information indicating that the travel hindrance section is not included in the travel route to the destination of the second vehicle 2B. The processing unit 633 controls the communication unit 61 so as to transmit the generated information to the second vehicle-mounted terminal 3B.

In the present embodiment, the slip section and the crosswind section are set as the traveling hindrance section, but only one section of the slip section and the crosswind section may be set as the running hindrance section. Further, the traveling hindrance section may be a road section other than the slip section and the crosswind section as long as it is a road section in which the traveling of the vehicle is hindered by the weather conditions. For example, a road section in which visibility in front of the vehicle is deteriorated due to fog, rain, or the like may be a traveling hindrance section.

[Processing of information providing device]
FIG. 3 is a flowchart showing a process executed by the information providing device 6. As shown in FIG. 3, the information providing device 6 receives the weather-related information and the position information from the first vehicle 2A at predetermined time intervals (step ST11), and the traffic condition map is based on the received weather-related information and the position information. Update the dynamic information of.
The information providing device 6 identifies the travel hindrance section based on the weather-related information and the position information of the traffic condition map updated during the fixed time period (step ST12), and based on the information on the identified travel hindrance section. Update the dynamic information of the traffic situation map.

When the information providing device 6 receives the route information from the second vehicle 2B (in the case of "Yes" in step ST13), the information providing device 6 proceeds to the next step ST14. On the other hand, if the information providing device 6 does not receive the route information from the second vehicle 2B (in the case of "No" in step ST13), the information providing device 6 repeatedly executes the processes of steps ST11 to ST12.
In step ST14, the information providing device 6 determines whether or not the traveling hindrance section is included in the traveling route to the destination of the second vehicle 2B based on the route information received from the second vehicle 2B. The specific determination method is as described above.

When the determination result in step ST14 is affirmative, the information providing device 6 generates alternative route information regarding the alternative traveling route avoiding the traveling obstruction section for the traveling route to the destination of the second vehicle 2B (step ST15). .. The specific method of generating the alternative route information is as described above. The information providing device 6 transmits the generated alternative route information to the second vehicle 2B (step ST16), and ends the process.

On the other hand, when the determination result in step ST14 is negative, the information providing device 6 generates information indicating that the traveling route to the destination of the second vehicle 2B does not include the traveling obstacle section (step ST17). .. Then, the information providing device 6 transmits the generated information to the second vehicle 2B (step ST18), and ends the process.

[Service example of information provision system]
FIG. 4 is an explanatory diagram showing a service example of the information providing system 1.
As shown in FIG. 4, the first vehicle 2A is traveling through the slip section and the crosswind section. Therefore, when the first vehicle 2A passes through the slip section, the first vehicle 2A transmits the weather-related information including the information indicating the friction coefficient and the position information to the information providing device 6 at predetermined time intervals. Further, when the first vehicle 2A passes through the crosswind section, the first vehicle 2A transmits weather-related information including information indicating the intensity of the crosswind and position information to the information providing device 6 at predetermined time intervals (step S21). The information providing device 6 updates the traffic condition map based on the weather-related information received from the first vehicle 2A.

The information providing device 6 receives and updates the slip section (traveling) at regular intervals based on the information (weather-related information) indicating the friction coefficient of the traffic condition map and the position information, which are received and updated from the first vehicle 2A during that period. Identify the obstruction section). Further, the information providing device 6 receives and updates the information providing device 6 from the first vehicle 2A at regular intervals, based on the information (weather-related information) indicating the friction section of the traffic condition map and the position information, and the crosswind section. (Traveling obstacle section) is specified (step S22).

On the other hand, the second vehicle 2B heading from the departure place to the destination transmits the route information regarding the traveling route from the departure place to the destination calculated by the navigation function to the information providing device 6 (step S23).
When the information providing device 6 receives the route information from the second vehicle 2B, it determines whether or not the traveling route to the destination of the second vehicle 2B includes a slip section or a crosswind section (step S24). The specific determination method is as described above.

In the example of FIG. 4, since the traveling route to the destination of the second vehicle 2B includes the slip section and the crosswind section, the information providing device 6 determines that the traveling route includes the slip section or the crosswind section. Then, the information providing device 6 searches for an alternative traveling route that avoids the slip section and the crosswind section for the traveling route, and shows the information indicating the searched alternative traveling route and the slip section and the crosswind section included in the traveling route. Alternate route information including the information is generated (step S25). Then, the information providing device 6 transmits the generated alternative route information to the second vehicle 2B (step S26).

Based on the received alternative route information, the second vehicle 2B is included in the travel route from the departure point to the destination for the passengers who are driving, for example, by the display 35 and the speaker 36 (see FIG. 2). The position of the slip section and the crosswind section is notified, and an alternative driving route avoiding the slip section and the crosswind section is proposed.

[Effect of this embodiment]
According to the information providing system 1 of the present embodiment, the information providing device 6 receives weather-related information regarding the weather conditions around the first vehicle 2A and the position information of the first vehicle 2A from the first vehicle-mounted terminal 3A, and the information providing device 6 receives the weather-related information and the position information of the first vehicle 2A. Identify the driving obstacle section based on the weather-related information and location information. Then, when the specified travel hindrance section is included in the travel route from the departure point to the destination of the second vehicle 2B, the information providing device 6 substitutes for the alternative travel route avoiding the travel obstruction section for the travel route. The route information is transmitted to the second vehicle-mounted terminal 3B of the second vehicle 2B. Thereby, the alternative route information regarding the alternative traveling route can be provided to the passenger of the second vehicle 2B.

When the weather-related information includes information indicating a friction coefficient between the road surface and the tire, the information providing device 6 causes the tire to freeze due to freezing of the road surface, rainwater on the road surface, or the like based on the information indicating the friction coefficient. It is possible to specify a slip section that is likely to slip. Thereby, the passenger of the second vehicle can be provided with the alternative route information regarding the alternative traveling route avoiding the slip section.

When the weather-related information includes information indicating the strength of the crosswind with respect to the first vehicle 2A, the information providing device 6 identifies a crosswind section in which the vehicle is likely to sway due to the crosswind based on the information indicating the strength of the crosswind. Can be done. Thereby, it is possible to provide the passenger of the second vehicle with the alternative route information regarding the alternative traveling route avoiding the crosswind section.

The information providing device 6 transmits not only the information indicating the alternative traveling route but also the information indicating the traveling obstacle section included in the traveling route to the second vehicle-mounted terminal 3B. As a result, the passenger of the second vehicle 2B can grasp that the traveling obstruction section is included in the traveling route to the destination based on the information indicating the traveling obstruction section.

When the traveling route from the departure point to the destination of the second vehicle 2B does not include the traveling obstruction section, the information providing device 6 provides information indicating that the traveling obstruction section is not included in the traveling obstruction section. It is transmitted to the second in-vehicle terminal 3B of the vehicle 2B. As a result, the passenger of the second vehicle 2B can grasp that the traveling hindrance section is not included in the traveling route from the second vehicle-mounted terminal 3B to the destination based on the above information.

When the information providing device 6 receives weather-related information and position information regarding the weather conditions around the plurality of first vehicles 2A and receives route information from the plurality of second vehicles 2B, these weather-related information and positions Identify the driving obstacle section based on the information. Then, the information providing device 6 determines whether or not each of the traveling routes from the departure point to the destination of the plurality of second vehicles 2B includes a traveling obstacle section, and the traveling with a positive determination result. About the route The alternative route information regarding the alternative traveling route avoiding the traveling obstruction section is transmitted to the corresponding second vehicle 2B. As a result, the information providing device 6 provides the passengers of the plurality of second vehicles 2B with the alternative route corresponding to the second vehicle 2B based on the weather-related information and the position information received from the plurality of first vehicles 2A. Information can be provided.

[Other]
The second vehicle-mounted terminal 3B of the present embodiment generates information indicating the traveling route as route information capable of specifying the traveling route from the starting point to the destination of the second vehicle 2B. Information indicating the destination may be generated as the route information. In this case, the information providing device 6 estimates the traveling route from the departure point to the destination of the second vehicle 2B based on the route information received from the second vehicle-mounted terminal 3B, and the traveling obstacle section is included in the estimated traveling route. It may be determined whether or not it is included.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is indicated by the scope of claims, not the above-mentioned meaning, and is intended to include the meaning equivalent to the scope of claims and all modifications within the scope.

1 Information providing system 2A 1st vehicle 2B 2nd vehicle 3A 1st in-vehicle terminal 3B 2nd in-vehicle terminal 6 Information providing device 7 Public communication network 30 Control unit 31 GPS receiver 32 Gyro sensor 33 Wheel rotation speed sensor 34 Storage unit 35 Display 36 Speaker 37 Input device 38 Crosswind detection sensor 39 In-vehicle communication unit (1st in-vehicle communication unit, 2nd in-vehicle communication unit)
61 Communication unit 62 Storage unit 63 Control unit 631 Specific unit 632 Judgment unit 633 Processing unit

Claims (5)

The first in-vehicle terminal mounted on the first vehicle, the second in-vehicle terminal mounted on the second vehicle, the display device mounted on the second vehicle, the first in-vehicle terminal and the second in-vehicle terminal, respectively. An information providing system equipped with an information providing device that communicates with
The first in-vehicle terminal includes a first in-vehicle communication unit that transmits weather-related information regarding the weather conditions around the first vehicle and position information of the first vehicle to the outside.
The second vehicle-mounted terminal includes a second vehicle-mounted communication unit that transmits route information that can identify a traveling route from the departure point to the destination of the second vehicle to the outside.
The information providing device is
A communication unit that receives the weather-related information and the location information from the first vehicle-mounted communication unit and receives the route information from the second vehicle-mounted communication unit.
Based on the weather-related information and the position information, the road section in which the vehicle's running is hindered by the weather conditions includes a crosswind section in which the vehicle tends to sway due to crosswind and a slip section in which the tire easily slips. With a specific part that identifies
Based on the route information, a determination unit for determining whether or not the traveling route includes at least one of the crosswind section and the slip section, and
When the determination result of the determination unit is affirmative, alternative route information relating to the alternative traveling route avoiding at least one of the crosswind section and the slip section is generated for the traveling route, and the generated alternative route information is used as the first alternative route information. 2 A processing unit that controls the communication unit so as to transmit to the in-vehicle terminal is provided.
The alternative route information includes information indicating the alternative travel route and information indicating the travel obstruction section and the type of the travel obstruction section included in the travel route.
When the information indicating the type of the traveling obstruction section included in the alternative route information received by the second vehicle-mounted terminal indicates a crosswind section, the display device indicates that the traveling obstruction section is a crosswind section. when showing the position of the running inhibition interval, display and said alternate travel routes, the information indicating the type of the running inhibition sections included in the alternative route information received by the second vehicle terminal slip section, the An information providing system that displays that the travel obstruction section is a slip section, the position of the travel obstruction section, and the alternative travel route . When the determination result of the determination unit is negative, the processing unit generates information indicating that the travel hindrance section is not included in the travel route, and transmits the generated information to the second vehicle-mounted terminal. The information providing system according to claim 1, wherein the communication unit is controlled as described above. The communication unit receives the weather-related information and the position information from the first vehicle-mounted terminals mounted on the plurality of first vehicles, and the route from the second vehicle-mounted terminals mounted on the plurality of second vehicles. Receive information,
The specific unit identifies the crosswind section and the slip section based on the plurality of weather-related information and the position information.
Based on the plurality of route information, the determination unit determines whether or not the traveling route of each of the plurality of second vehicles includes at least one of the crosswind section and the slip section.
The processing unit generates the alternative route information for the traveling route for which the determination result of the determination unit is affirmative, and transmits the generated alternative route information to the corresponding second vehicle-mounted terminal. The information providing system according to claim 1 or 2, which controls a communication unit. It is an information providing method executed by an information providing device that communicates with each of the first in-vehicle terminal mounted on the first vehicle and the second in-vehicle terminal mounted on the second vehicle.
From the first in-vehicle terminal, weather-related information regarding the weather conditions around the first vehicle and the position information of the first vehicle are received, and from the second in-vehicle terminal, the departure point to the destination of the second vehicle. A reception step that receives route information that can identify the travel route to
Based on the weather-related information and the position information, the road section in which the vehicle's running is hindered by the weather conditions includes a crosswind section in which the vehicle tends to sway due to crosswind and a slip section in which the tire easily slips. With specific steps to identify
A determination step for determining whether or not the traveling route includes at least one of the crosswind section and the slip section based on the route information.
When the determination result of the determination step is affirmative, alternative route information relating to the alternative travel route avoiding at least one of the crosswind section and the slip section is generated for the travel route, and the generated alternative route information is used as the first alternative route information. 2 Includes a processing step that controls communication so that it is transmitted to the in-vehicle terminal.
The alternative route information includes information indicating the alternative travel route and information indicating the travel obstruction section and the type of the travel obstruction section included in the travel route.
The prior SL case shown a second said running inhibition information crosswind section indicating the type of sections included in the alternative route information received by the vehicle-mounted terminal, the mounted on the second vehicle display device, said running inhibition zone The crosswind section, the position of the travel hindrance section, and the alternative travel route are displayed, and the information indicating the type of the travel obstruction section included in the alternative route information received by the second vehicle-mounted terminal is displayed. When indicating a slip section , information is provided that the display device mounted on the second vehicle in the previous term displays that the travel hindrance section is a slip section, the position of the travel hindrance section, and the alternative travel route. Method. It is a computer program for operating a computer as an information providing device that communicates with each of the first in-vehicle terminal mounted on the first vehicle and the second in-vehicle terminal mounted on the second vehicle.
Computer,
From the first in-vehicle terminal, weather-related information regarding the weather conditions around the first vehicle and the position information of the first vehicle are received, and from the second in-vehicle terminal, the departure point to the destination of the second vehicle. A communication unit that receives route information that can identify the travel route to
Based on the weather-related information and the position information, the road section in which the vehicle's running is hindered by the weather conditions includes a crosswind section in which the vehicle tends to sway due to crosswind and a slip section in which the tire easily slips. With a specific part that identifies
Based on the route information, a determination unit for determining whether or not the traveling route includes at least one of the crosswind section and the slip section, and
When the determination result of the determination unit is affirmative, alternative route information relating to the alternative traveling route avoiding at least one of the crosswind section and the slip section is generated for the traveling route, and the generated alternative route information is used as the first alternative route information. 2 To function as a processing unit that controls the communication unit so that it is transmitted to the in-vehicle terminal.
The alternative route information includes information indicating the alternative travel route and information indicating the travel obstruction section and the type of the travel obstruction section included in the travel route.
The prior SL case shown a second said running inhibition information crosswind section indicating the type of sections included in the alternative route information received by the vehicle-mounted terminal, the mounted on the second vehicle display device, said running inhibition zone The crosswind section, the position of the travel hindrance section, and the alternative travel route are displayed, and the information indicating the type of the travel obstruction section included in the alternative route information received by the second vehicle-mounted terminal is displayed. When indicating a slip section, a computer program in which the display device mounted on the second vehicle in the previous term displays that the travel hindrance section is a slip section, the position of the travel hindrance section, and the alternative travel route. ..

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