WO2013136699A1

WO2013136699A1 - Road information creation / distribution system, road information creation / distribution device, vehicle-mounted device, road information creation / distribution method

Info

Publication number: WO2013136699A1
Application number: PCT/JP2013/001206
Authority: WO
Inventors: 晃洋松下; 平松　真知子
Original assignee: 日産自動車株式会社
Priority date: 2012-03-14
Filing date: 2013-02-28
Publication date: 2013-09-19

Abstract

It is determined whether or not the previous travel frequency, i.e., the number of times that a vehicle has previously traveled a road intersecting a stored no-signal intersection, exceeds a pre-set previous travel determining frequency, and if the road for which the previous travel frequency was determined to exceed the previous travel determining frequency is determined to be a non-priority road, then the stopping target position is set on the basis of travel information of only the vehicle for which the previous travel frequency was determined to exceed the previous travel determining frequency, and if the road for which the previous travel frequency was determined not to exceed the previous travel determining frequency is determined to be a non-priority road, then the stopping target position is set on the basis of travel information of multiple vehicles including the vehicle for which the previous travel frequency was determined to not exceed the previous travel determining frequency.

Description

Road information creation / distribution system, road information creation / distribution device, in-vehicle device, road information creation / distribution method

The present invention relates to a road information creation / distribution system, a road information creation / distribution device for setting a stop target position for stopping a vehicle on a non-priority road that intersects at an intersection where no traffic signal exists and needs to be temporarily stopped The present invention relates to in-vehicle devices and road information creation / distribution methods.

As a technique for detecting a point that needs to be temporarily stopped on a road, for example, there is a technique described in Patent Document 1.
In the technique described in Patent Document 1, the speed and position of each vehicle are detected by a plurality of vehicles, and travel information including the detected speed and position is collected by a base station via a communication path. . The base station that collects the travel information determines a non-priority road including a point that needs to be temporarily stopped, and sets a stop target position of the vehicle according to the non-priority road. Further, information indicating the determined non-priority road and the set stop target position is transmitted to the vehicle via the communication path. And in the vehicle which received the information from the base station, the information indicating the approach to the temporary stop intersection where the non-priority road intersects the driver, the information indicating the stop target position, etc. are notified to the driver by an in-vehicle speaker or the like. .

Japanese Patent No. 4715170

In the technique described in Patent Document 1, the driving information detected by a plurality of vehicles is used to determine a non-priority road and set a stop target position, and to the driver of the vehicle who has received information from the base station. Announcement is made.
For this reason, even when a vehicle that has received information from the base station travels on a non-priority road that travels frequently, such as a road on a commuting route, another driving operation is performed to the driver of this vehicle. Notification based on traveling information detected by a plurality of vehicles driven by a person is performed.

However, when a notification is made based on the travel information detected by a plurality of other vehicles when traveling on a road with a high frequency of travel, the driver of the vehicle traveling on the road with a high travel frequency is notified. There is a possibility of feeling uncomfortable or annoying from the information.
The present invention has been made paying attention to the above problems, and a road information creation / distribution system and road information creation capable of setting a stop target position according to the frequency of traveling on a non-priority road. -An object is to provide a distribution device, an in-vehicle device, and a road information creation / distribution method.

In order to solve the above-described problem, according to one aspect of the present invention, the number of times the vehicle has traveled in the past on a road that intersects at a stored signal-free intersection is a preset number of times that the vehicle has already been determined. Determine if it has exceeded. Then, if the road that has been determined that the number of already-running times exceeds the number of times of already-running determination is a non-priority road that has been determined, only the vehicle that has been determined to have exceeded the number of times of already-running determination A stop target position is set based on the information. On the other hand, if the road that has been determined that the number of already-running times is less than or equal to the number of times of already-traveling determination is a non-priority road that has been determined, A stop target position is set based on the travel information of the vehicle.

According to one aspect of the present invention, it is possible to set a stop target position according to the frequency of traveling on a non-priority road. It becomes possible to perform notification based on the travel information detected by the vehicle that is driving.
For this reason, it becomes possible to reduce a possibility that the driver of the vehicle traveling on the non-priority road having a high traveling frequency receives a sense of incongruity or annoyance from the notified information.

It is a figure showing a schematic structure of a road information creation and distribution system of a first embodiment of the present invention. It is a figure which shows the structure of the vehicle-mounted apparatus mounted in the vehicle. It is a figure which shows distribution based on the distance from the center of a no signal intersection to the stop position on a non-priority road. It is a flowchart which shows an example of the process which a vehicle-mounted apparatus performs. It is a flowchart which shows an example of the process which a vehicle-mounted apparatus performs. It is a flowchart which shows an example of the process which a road information preparation and distribution apparatus performs.

Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
Hereinafter, a first embodiment of the present invention (hereinafter referred to as the present embodiment) will be described with reference to the drawings.
(System configuration)
FIG. 1 is a diagram illustrating a schematic configuration of a road information creation / distribution system S according to the present embodiment, and is a system diagram of an information providing apparatus including an in-vehicle device 1 and a road information creation / distribution device 2. In addition, in FIG. 1, illustration of the detailed structure of the vehicle-mounted apparatus 1 is abbreviate | omitted.

As shown in FIG. 1, a vehicle C is mounted on the in-vehicle device 1. The road information creation / distribution device 2 is provided in the base station B. The in-vehicle device 1 and the road information creation / distribution device 2 transmit or receive information signals (information) via a communication path 4 formed by a wireless communication path or the like.
In the present embodiment, a case will be described in which a plurality of (two) vehicles C1 and C2 and one base station B are connected via a communication path 4 so that information can be transmitted or received. In FIG. 1, only two vehicles C1 and C2 are illustrated as vehicles on which the in-vehicle device 1 is mounted. However, in the present embodiment, other vehicles not shown are also connected via the communication path 4. The road information creation / distribution device 2 transmits or receives information.

(Configuration of in-vehicle device 1)
Hereinafter, the configuration of the in-vehicle device 1 will be described with reference to FIG.
FIG. 2 is a diagram illustrating a configuration of the in-vehicle device 1 mounted on the vehicle C. Since the configurations of the vehicle C1 and the vehicle C2 are the same, the configuration of the vehicle C1 and the vehicle C2 is shown as the configuration of the vehicle C in FIG.
As shown in FIG. 2, the in-vehicle device 1 includes a vehicle speed detection unit 6, a vehicle position detection unit 8, a ROM 10, and a RAM 12. In addition, the in-vehicle device 1 includes a vehicle-side database 14, a controller 16, a notification unit 18, a vehicle-side travel information recording unit 20, a vehicle-side transmission unit 22, and a vehicle-side reception unit 24.

The vehicle speed detector 6 is formed by a vehicle speed sensor, for example.
Moreover, the vehicle speed detection part 6 detects the present speed of the vehicle C using the rotation speed etc. of the wheel (not shown) with which the vehicle C is provided. Then, the vehicle speed detection unit 6 outputs an information signal (hereinafter may be described as “vehicle speed signal”) including the detected current speed (hereinafter may be described as “vehicle speed”) to the controller 16. To do.
The vehicle position detection unit 8 is formed by a navigation device having a GPS (Global Positioning System) receiver, for example.
For example, the GPS receiver detects coordinates indicating the position (current position) of the vehicle C based on radio waves transmitted by GPS satellites.

The navigation device is formed by using a general car navigation system.
In addition, the vehicle position detection unit 8 transmits an information signal (hereinafter sometimes referred to as “own vehicle position signal”) including the position information (current position information) of the vehicle C received by the GPS receiver to the controller 16. Output to.
The ROM 10 is formed of a known read-only storage device (Read Only Memory) and stores a control program and the like.

Further, the ROM 10 outputs an information signal including a stored control program and the like to the controller 16 in accordance with processing performed by the controller 16.
The RAM 12 is formed of a known storage device (Random Access Memory) capable of reading and writing.
Further, the RAM 12 outputs the stored / accumulated information to the controller 16 in accordance with the processing performed by the controller 16.

The vehicle-side database 14 includes a vehicle-side map data storage unit 26 that stores map data such as road types in a preset range such as in Japan. In addition, you may update the map data which the vehicle side map data storage part 26 memorize | stores as needed using a storage medium, data communication, etc.
Further, the vehicle-side database 14 may be described as an information signal (hereinafter referred to as “vehicle-side map signal”) including map data stored in the vehicle-side map data storage unit 26 in accordance with processing performed by the controller 16. Is output to the controller 16.

Here, the map data stored in the vehicle-side map data storage unit 26 includes information indicating the position of the intersection existing within the set range, and whether or not there is a traffic signal at each intersection (presence of traffic signal). Contains information indicating. The map data stored in the vehicle-side map data storage unit 26 indicates whether the road type is a general road or a highway (toll road) for each road existing within the set range. Contains information.

The controller 16 generates an information signal including travel information of the vehicle C using the vehicle speed signal received from the vehicle speed detection unit 6 and the own vehicle position signal received from the vehicle position detection unit 8. In addition to this, an information signal (hereinafter, sometimes referred to as “travel information signal”) in which identification information (for example, a vehicle ID number) unique to the vehicle C is associated with an information signal including travel information of the vehicle C is generated. To do. Then, the generated travel information signal is output to the vehicle-side travel information recording unit 20. That is, the travel information signal output by the vehicle C includes information that can identify the vehicle C. Further, identification information unique to the vehicle C (own vehicle) is stored in the controller 16.

Further, the controller 16 performs processing according to the state (ON state / OFF state) of an ignition switch (not shown). The processing performed by the controller 16 in accordance with the ignition switch state will be described later. Here, the ignition switch is formed by, for example, a button (ignition button) operated by the driver of the vehicle C.
In addition, the controller 16 includes a travel frequency determination unit 28, a vehicle-side road characteristic determination unit 30 includes a vehicle-side stop target position setting unit 32, a stop target position selection unit 34, and a notification content generation unit 36.

The traveling frequency determination unit 28 stores the vehicle speed signal received from the vehicle speed detection unit 6 and the own vehicle position signal received from the vehicle position detection unit 8 in the vehicle-side map data storage unit 26 when the vehicle C is traveling. Check the stored map data. And it is determined whether the road from which the own vehicle C provided with the vehicle-mounted device 1 will travel is a road on which the own vehicle C has traveled in the past. Here, the road on which the host vehicle C including the in-vehicle device 1 will travel is a road that intersects at a no-signal intersection among the intersections stored in the map data stored in the vehicle-side map data storage unit 26. . The no-signal intersection is an intersection that requires a temporary stop and does not have a traffic signal.

In addition, when the traveling frequency determination unit 28 determines that the road on which the host vehicle C will travel is a road on which the host vehicle C has traveled in the past, the traveling frequency that is the number of times the host vehicle C has traveled on the determined road. However, it is determined whether it exceeds the preset number of times for already-running determination.
In this embodiment, as an example, the number of times of already-running determination is set to 5 times. Further, in the present embodiment, as an example, the number of times of already-running determination is set as the number of times of determination using the number of already-running times during one month.
Then, when it is determined that the number of already traveled times exceeds the number of times for already traveling determination, an information signal indicating the determination result is output to the vehicle-side road characteristic determining unit 30.

In addition, when the traveling frequency determination unit 28 determines that the number of existing travelings is equal to or less than the number of times of already traveling determination, information including a road number (link number) on which the own vehicle C will travel and a non-priority road information transmission request Signals (hereinafter referred to as “non-priority road information transmission request signal”) are associated. Then, a non-priority road information transmission request signal associated with the link number is transmitted to the base station B. Here, the non-priority road information transmission request transmits, to the base station side database 38 described later, information on the non-priority road intersecting at the no-signal intersection associated with the link number to the host vehicle C. It is a request.

In addition, the travel frequency determination unit 28 outputs an information signal including a determination result as to whether or not the number of already traveled times exceeds the number of times of already traveled determination to the vehicle-side stop target position setting unit 32 and the stop target position selection unit 34. To do.
When the vehicle-side road characteristic determining unit 30 receives an input of an information signal indicating a determination result determined from the traveling frequency determining unit 28 that the number of already traveled times exceeds the number of times for already traveling determination, the vehicle side road characteristic determining unit 30 performs processing described below. Do.

First, the probability that the speed of the host vehicle C including the in-vehicle device 1 within the predetermined determination range from the no-signal intersection stored in the vehicle-side map data storage unit 26 is equal to or lower than the predetermined determination speed is set in advance. Roads including points that are equal to or higher than the set determination probability are extracted. Then, the extracted road is determined as a non-priority road including a point that needs to be temporarily stopped among roads intersecting at a no-signal intersection stored in the vehicle-side map data storage unit 26. Here, the above-described road extraction is performed based on the traveling information of the host vehicle C generated by the controller 16.
In the present embodiment, as an example, the determination range is set to a radius of 30 [m] from the center of the no-signal intersection. In this embodiment, as an example, the determination speed is set to 10 [km / h].

Hereinafter, specific processing when the vehicle-side road characteristic determination unit 30 determines a non-priority road will be described.
First, the map data stored in the vehicle-side map data storage unit 26 is referred to, and one signal-free intersection is selected from each intersection existing within the set range.
In addition, when performing the process of selecting one no-signal intersection, for example, a signal that is present at a position closest to the current position of the host vehicle C from a predicted route that is a route predicted by the host vehicle C to travel. Select no intersection. Moreover, the process which selects an intersection without a signal is performed based on the driving information mentioned above in addition to the map data which the vehicle side map data storage part 26 has memorize | stored, for example.

Here, the predicted route is calculated based on, for example, a destination set by the driver of the host vehicle C operating the navigation device or a travel route corresponding to the destination.
Next, of the total number of times that the host vehicle C has entered the no-signal intersection, it is determined whether or not the number of times of traveling at a speed of 10 km / h or less is equal to or greater than the number of times of entry set in advance according to the total number of times. judge. As a result, it is determined whether or not the probability that the speed of the host vehicle C that has entered the no-signal intersection is 10 [km / h] or less is equal to or higher than a preset determination probability. In the following description, the probability that the speed of the host vehicle C that has entered the no-signal intersection is 10 [km / h] or less may be referred to as a “slowing probability”.

In this embodiment, as an example, the determination probability is set to 90 [%]. Therefore, for example, when the total number of times described above is 100 times, the number of times of entering is set to 90 times.
Next, it is determined whether or not a point having a slowing probability of 90 [%] or more is within a predetermined determination range from the no-signal intersection.
If it is determined that a point having a slowing probability of 90% or more is within a radius of 30m from the center of the no-signal intersection, a road including a point having a slowing probability of 90% or more is selected. Extract from roads that intersect at signalless intersections. Furthermore, the extracted road is determined as a non-priority road regulated by a sign (road sign). The sign may include a road sign.

If it is determined that a point having a slowing probability of 90 [%] or more is within a radius of 30 [m] from the center of the no-signal intersection, an information signal including a driving tendency transmission request is sent to the driving tendency extracting unit 42F described later. (Hereinafter referred to as “driving tendency transmission request signal”). Here, the driving tendency transmission request is a request for transmitting the driving tendency of the driver driving the host vehicle C to the host vehicle C.

Furthermore, an information signal (hereinafter referred to as “vehicle-side non-priority road signal”) including vehicle-side non-priority road information associated with a signal no-intersection at which the non-priority road determined by the vehicle-side road characteristic determination unit 30 intersects may be described. Is output to the vehicle-side stop target position setting unit 32. In addition, the vehicle-side non-priority road signal is output to the vehicle-side database 14. The vehicle-side database 14 that has received the input of the vehicle-side non-priority road signal stores / updates the non-priority road including the point where the slowing probability is 90% or more for each associated signal no-intersection.
On the other hand, if it is determined that the point where the slowing probability is 90% or more is not within the radius 30 [m] from the center of the no-signal intersection, the non-priority road information transmission request signal associated with the link number is transmitted to the base station B. Send to.

Further, the vehicle-side road characteristic determination unit 30 calculates an information signal including information (node number, node coordinate) regarding the determined no-signal intersection, a road number (link number) connected to the determined no-signal intersection, and the like. As a result, the data is output to the vehicle-side map data storage unit 26. Receiving the calculation result, the vehicle-side map data storage unit 26 stores and accumulates the calculation result of the vehicle-side road characteristic determination unit 30. Here, the above-mentioned “node number” is a unique number of a point designated at an arbitrary position on a no-signal intersection. The “node coordinates” are the coordinates of a point designated at an arbitrary position on the no-signal intersection.

As a result, the vehicle-side road characteristic determining unit 30 stores and accumulates information regarding the determined no-signal intersection, a road number connected to the no-signal intersection, and the like in the vehicle-side map data storage unit 26.
The vehicle-side stop target position setting unit 32 receives an information signal including a determination result that the number of already-running times exceeds the number of times of already-running determination from the traveling frequency determining unit 28, and receives the information signal from the vehicle-side road characteristic determining unit 30 When an input of a non-priority road signal is received, processing described below is performed.

First, the travel information of the host vehicle C generated by the controller 16 and the non-priority road included in the vehicle-side non-priority road signal are referred to. Then, a stop target position for temporarily stopping the vehicle C on the non-priority road determined by the vehicle-side road characteristic determination unit 30 is set.
The target stop position is set based on a point on the non-priority road determined by the vehicle-side road characteristic determination unit 30 where the speed of the host vehicle C is 10 [km / h] or less.

Specifically, using the travel information of the host vehicle C generated by the controller 16 on the non-priority road determined by the vehicle-side road characteristic determination unit 30, the vehicle speed is within a radius of 30 [m] from the center of the no-signal intersection. A plurality of positions with the lowest value are extracted. Then, using a plurality of extracted positions, a plurality of distances from the center of the no-signal intersection are calculated. Further, the average value of the calculated plurality of distances is used as the distance from the extracted no-signal intersection, and a position suitable for temporary stop is determined.

In other words, the vehicle-side stop target position setting unit 32 sets the vehicle-side stop target position based on the travel information of only the vehicle that has been determined that the number of already running times exceeds the number of times of already-running determination, that is, the own vehicle To do. This setting is performed when the road that has been determined by the travel frequency determination unit 28 that the number of already-running times exceeds the number of times of already-running determination is a non-priority road that has been determined by the vehicle-side road characteristic determining unit 30.

The vehicle-side stop target position setting unit 32 that has set the stop target position is described as an information signal including vehicle-side stop target position information that is information on the set stop target position (hereinafter referred to as “vehicle-side stop target position signal”). Is output to the vehicle-side map data storage unit 26. Receiving the input of the vehicle-side stop target position signal, the vehicle-side map data storage unit 26 stores and updates the set vehicle-side stop target position for each selected no-signal intersection.

In addition, the vehicle-side stop target position setting unit 32 that has set the stop target position outputs the above-described vehicle-side stop target position signal to the stop target position selection unit 34.
The stop target position selection unit 34 determines whether or not a deviation tendency vehicle signal has been received from the driving tendency extraction unit 42 </ b> F that has received the driving tendency transmission request signal transmitted by the vehicle-side road characteristic determination unit 30.
And if it determines with having received the deviation tendency vehicle signal from the driving tendency extraction part 42F, the identification information intrinsic | native to the vehicle C which the deviation tendency vehicle information contains will be detected with reference to the received deviation tendency vehicle information. Then, it is determined whether the identification information unique to the vehicle C (own vehicle) stored in the controller 16 is the same as the identification information unique to the vehicle C included in the deviation tendency vehicle information.

When the two pieces of identification information described above are the same, the stop target position selection unit 34 transmits a non-priority road information transmission request signal associated with the link number to the base station B. And when the base station side stop target position signal mentioned later is received, the actual use stop target position which uses the base station side stop target position which this received base station side stop target position signal contains in the process of the alerting | reporting content generation part 36 Choose as. Furthermore, the base station side stop target position included in the base station side stop target position signal is stored and accumulated in the vehicle side travel information recording unit 20.

In other words, the stop target position selection unit 34 corresponds to the identification information corresponding to the received divergence tendency vehicle information that is determined by the traveling frequency determination unit 28 to determine that the number of existing travelings exceeds the number of times of previous traveling determination. In this case, the base station side stop target position is selected as the stop target position.
On the other hand, when the two pieces of identification information described above are different, the stop target position selection unit 34 receives an input from the travel frequency determination unit 28, and determines whether or not the number of already traveled times exceeds the number of times for already traveling determination. Refer to the containing information signal. Furthermore, the referred determination result is collated with the non-priority road determined by the vehicle-side road characteristic determination unit 30.

When the road frequency determined by the driving frequency determination unit 28 is determined to be greater than the number of times of the already-running determination, the vehicle-side stop target position included in the vehicle-side stop target position signal is notified. It selects as an actual use stop target position used by the process of the production | generation part 36. FIG. Then, the vehicle-side stop target position included in the vehicle-side stop target position signal is stored and accumulated in the vehicle-side travel information recording unit 20.

On the other hand, if the road determined by the travel frequency determination unit 28 to be less than or equal to the number of times already used for traveling determination is a non-priority road, the base station side stop target position included in the base station side stop target position signal is notified. The actual use stop target position used in the processing of the content generation unit 36 is selected. Furthermore, the base station side stop target position included in the base station side stop target position signal is stored and accumulated in the vehicle side travel information recording unit 20.

The notification content generation unit 36 generates a command signal to be output to the notification unit 18 according to the travel information of the host vehicle C generated by the controller 16 and the actual use stop target position selected by the stop target position selection unit 34. A specific process when the notification content generation unit 36 generates the command signal will be described later.
Then, the notification content generation unit 36 outputs the generated command signal to the notification unit 18.
The notification unit 18 is formed of, for example, a monitor and a speaker, and is attached to the vehicle interior.
In addition, the notification unit 18 presents at least one of the video information displayed on the monitor and the audio information output from the speaker to the driver of the vehicle C according to the command signal output from the controller 16. This alerts the driver of the vehicle C to prompt deceleration or temporary stop.

Note that the video information displayed on the monitor includes, for example, a still image including a message prompting deceleration (such as “Please decelerate”) and a message prompting temporary stop (such as “Fast stop brake”). It is a still image. The audio information output from the speaker is, for example, an audio message (a specific example will be described later) or an alarm buzzer (buzzer sound).
The vehicle side travel information recording unit 20 is formed by peripheral components of a CPU (Central Processing Unit) such as a RAM, for example.

The vehicle-side travel information recording unit 20 receives a travel information signal generated by the controller 16. The vehicle-side travel information recording unit 20 stores and accumulates travel information included in the travel information signal.
The vehicle-side travel information recording unit 20 stores and accumulates the calculation results included in the information signal received from the controller 16.
Further, the vehicle-side travel information recording unit 20 outputs a travel information signal received from the controller 16 to the vehicle-side transmission unit 22.
The vehicle-side travel information recording unit 20 receives various information signals from the base station B via the vehicle-side receiving unit 24. And the vehicle side driving information recording part 20 memorize | stores and accumulate | stores the calculation result which the information signal received from the base station B contains based on the various information signals input. The calculation result included in the information signal received from the base station B will be described later.

Further, the vehicle-side travel information recording unit 20 outputs an information signal including the accumulated travel information and calculation results to the controller 16 in accordance with the processing performed by the controller 16.
The vehicle-side transmission unit 22 transmits the travel information signal received from the vehicle-side travel information recording unit 20 to the road information creation / distribution device 2 via the communication path 4.
The vehicle-side receiving unit 24 receives various information signals transmitted by the road information creation / distribution device 2 via the communication path 4.
Further, the vehicle-side receiving unit 24 outputs the received various information signals to the vehicle-side travel information recording unit 20.

(Configuration of road information creation / distribution device 2)
The road information creation / distribution device 2 includes a base station side database 38, a base station side travel information recording unit 40, a road condition determination unit 42, a base station side reception unit 44, and a base station side transmission unit 46.
The base station side database 38 includes, for example, a base station side map data storage unit 48 that stores map data such as road types in a preset range such as in the country, like the vehicle side map data storage unit 26. Similar to the vehicle-side map data storage unit 26, the map data stored in the base station-side map data storage unit 48 may be updated as necessary using a storage medium, data communication, or the like.

Further, the base station side database 38 is an information signal (hereinafter referred to as “base station side map signal”) including map data stored in the base station side map data storage unit 48 in accordance with processing performed by the road condition determination unit 42. Is output to the road condition determination unit 42.
Here, the map data stored in the base station side map data storage unit 48 includes information indicating the position of the intersection existing within the set range and the traffic signal at each intersection, as in the vehicle side map data storage unit 26. Includes information indicating whether or not a signal exists (the presence or absence of a traffic light).
Similarly to the vehicle-side travel information recording unit 20, the base station-side travel information recording unit 40 is formed of peripheral components of the CPU.
The base station side travel information recording unit 40 includes an overall travel information storage unit 50 and individual travel information storage units 52.

The overall travel information accumulation unit 50 receives a travel information signal from a plurality of vehicles C via the base station side reception unit 44. Further, the overall travel information accumulation unit 50 receives an information signal input from the road condition determination unit 42. Then, the overall travel information storage unit 50 identifies the overall travel information, which is travel information received from all the vehicles C that have received the input of the travel information signal, based on various input information signals, as identification information unique to the vehicle C. Are stored and stored without associating them. In addition, the calculation results included in the information signal received from the road condition determination unit 42 are stored and accumulated. The calculation result included in the information signal received from the road condition determination unit 42 will be described later.

Further, the overall travel information accumulation unit 50 outputs an information signal including the accumulated overall travel information and the calculation result to the road situation determination unit 42 according to the processing performed by the road situation determination unit 42.
Each individual travel information storage unit 52 receives input of travel information signals from a plurality of vehicles C via the base station side receiving unit 44. Further, each individual travel information storage unit 52 receives an input of an information signal from the road condition determination unit 42. Each individual travel information accumulation unit 52 is each travel information of all the vehicles C that has received the travel information signal based on various input information signals, and each individual travel associated with identification information unique to the vehicle C. Information is stored and stored separately for each vehicle C. In addition, the calculation results included in the information signal received from the road condition determination unit 42 are stored and accumulated.

In addition, each individual traveling information accumulation unit 52 outputs an information signal including each individual traveling information and calculation result stored therein to the road condition determining unit 42 in accordance with the processing performed by the road condition determining unit 42.
The road situation determination unit 42 receives an input of a base station side map signal from the base station side database 38. Further, the road condition determination unit 42 receives an input of an information signal including the accumulated travel information (whole travel information, individual travel information) from the base station side travel information recording unit 40.
The road condition determination unit 42 includes a base station side road characteristic determination unit 42A, a base station side stop target position setting unit 42B, an overall driving tendency calculation unit 42C, an individual driving tendency calculation unit 42D, and driving by driver. A tendency determining unit 42E and a driving tendency extracting unit 42F are provided.

The base station side road characteristic determination unit 42A determines the probability that the speeds of the plurality of vehicles C within the determination range from the no-signal intersection stored in the base station side map data storage unit 48 are equal to or less than the determination speed. Extract roads that include points that are more than the probability of use. Then, the extracted road is determined as a non-priority road including a point that needs to be temporarily stopped among roads intersecting at a no-signal intersection stored in the base station side map data storage unit 48. Here, the above-described road extraction is performed based on the total travel information received from the total travel information storage unit 50.

Hereinafter, specific processing when the base station side road characteristic determination unit 42A determines a non-priority road will be described.
First, the map data stored in the base station side map data storage unit 48 is referred to, and a signal-free intersection is selected from each intersection existing within the set range.
In addition, when performing the process of selecting one signal no-intersection, for example, a signal no-intersection exists at a position closest to the current position of the vehicle C on the predicted route that is a route predicted by the vehicle C to travel. Select. Moreover, the process which selects a no-signal intersection is performed based on the travel information mentioned above in addition to the map data which the base station side map data storage part 48 has memorize | stored, for example.

Here, the predicted route is calculated based on, for example, a destination set by the driver of the vehicle C by operating the navigation device or a travel route corresponding to the destination.
Next, based on the total travel information received from the total travel information storage unit 50, the total number of detections of the travel information detected by the plurality of vehicles C is greater than or equal to the detection count for determination with respect to the selected no-signal intersection. It is determined whether or not there is.

If it is determined that the total number of times travel information detected by a plurality of vehicles C is equal to or greater than the number of detections for determination, it is determined whether or not the slowing probability is greater than or equal to the determination probability. It is determined whether or not the above point is within the determination range from the no signal intersection.
If it is determined that a point having a slowing probability of 90% or more is within a radius of 30m from the center of the no-signal intersection, a road including a point having a slowing probability of 90% or more is selected. Extract from roads that intersect at signalless intersections. Furthermore, the extracted road is determined as a non-priority road regulated by a sign (road sign).

Furthermore, an information signal (hereinafter referred to as “base station non-priority road signal”) including base station-side non-priority road information associated with a signal no-intersection at which the non-priority road intersected by the base station-side road characteristic determination unit 42A intersects. Is output to the base station side stop target position setting unit 42B. Furthermore, the base station side non-priority road signal is output to the general driving tendency calculation unit 42C.
In addition, the base station side non-priority road signal is output to the base station side database 38. Receiving the input of the base station side non-priority road signal, the base station side database 38 stores / updates the non-priority road including the point where the slowing probability is 90% or more for each associated signal no-intersection. .

The above processing is performed for other signal no-intersections as well as one selected signal no-intersection. Thereby, the base station side road characteristic determination unit 42A determines a non-priority road with respect to a signal no-intersection existing in the set range in the map data stored in the base station side map data storage unit 48. I do.
In addition, the base station side road characteristic determination unit 42A uses the base station side travel information recording unit 40 as a calculation result of an information signal including information regarding the determined no signal intersection, a road number connected to the determined no signal intersection, and the like. Output to. Receiving the calculation result, the base station side travel information recording unit 40 stores and accumulates the calculation result of the base station side road characteristic determination unit 42A.

Thereby, the base station side road characteristic determination unit 42A stores and accumulates information on the determined no-signal intersection, a road number connected to the no-signal intersection, and the like in the base station-side travel information recording unit 40.
The base station stop target position setting unit 42B temporarily stops the vehicle C on the non-priority road determined by the base station side road characteristic determination unit 42A based on the total travel information received from the total travel information storage unit 50. The base station side stop target position for this is set.
The base station side target stop position is set based on a point where the speed of the plurality of vehicles C is 10 [km / h] or less on the non-priority road determined by the base station side road characteristic determination unit 42A.

Specifically, using the overall travel information on the non-priority road determined by the base station side road characteristic determination unit 42A, the position where the vehicle speed is the minimum value within the radius 30 [m] from the center of the no-signal intersection is determined. Extract multiple locations. Then, using a plurality of extracted positions, a plurality of distances from the center of the no-signal intersection are calculated. Further, the average value of the calculated plurality of distances is used as the distance from the extracted no-signal intersection, and a position suitable for temporary stop is determined.

The base station-side stop target position setting unit 42B that has set the base station-side stop target position outputs a base station-side stop target position signal to the base station-side map data storage unit 48. Here, the base station side stop target position signal is an information signal including base station side stop target position information which is information on the set base station side stop target position. Receiving the input of the base station side stop target position signal, the base station side map data storage unit 48 stores and updates the set base station side stop target position for each selected no-signal intersection.

The base station side stop target position setting unit 42B that has set the base station side stop target position outputs the base station side stop target position signal described above to the base station side transmission unit 46.
The overall driving tendency calculation unit 42C refers to the entire traveling information received from the entire traveling information storage unit 50, and based on the traveling information for a plurality of vehicles, the comprehensive driving tendency calculation unit 42C The total driving tendency, which is a normal driving tendency, is calculated. Further, the total driving tendency calculation unit 42C outputs an information signal including the calculated total driving tendency (hereinafter, may be described as “total driving tendency signal”) to the driving tendency determination unit 42E for each driver.

The total driving tendency is calculated using the base station side non-priority road signal received from the base station side road characteristic determination unit 42A and values detected by various detection units (sensors) such as the vehicle speed. . In the present embodiment, as an example, a case where the total driving tendency is calculated using the vehicle speed of the vehicle C detected by the vehicle speed detection unit 6 and the position of the vehicle C detected by the vehicle position detection unit 8 will be described.
Specifically, first, reference is made to non-priority road information included in the base station-side non-priority road signal. Furthermore, the total number of detections of the travel information detected by the plurality of vehicles C for the same non-priority road based on the total travel information received from the total travel information storage unit 50 is equal to or greater than the detection count for determination. It is determined whether or not.

Next, on all non-priority roads that have received travel information on the same non-priority road determined that the total number of times travel information detected by a plurality of vehicles C is equal to or greater than the number of detection times for determination, The stop position on the top is detected.
And the distance from the center of a no signal intersection to the stop position on a non-priority road is detected for all the vehicles C. Further, as the total driving tendency, for example, as shown in FIG. 3, a distribution based on the distance from the center of the no-signal intersection to the stop position on the non-priority road is calculated.

FIG. 3 is a diagram showing a distribution based on the distance from the center of the no-signal intersection to the stop position on the non-priority road. In FIG. 3, the vertical axis indicates the detected number of stops (in the figure, “stop count”), and the horizontal axis indicates the distance from the center of the no-signal intersection to the stop position (in the figure). , Described as “distance to the center of the intersection”). In FIG. 3, the average value of speed elements is indicated as “average value”, and the standard deviation is indicated as “σ”. Further, in FIG. 3, a sign indicating a temporary stop (a temporary stop sign) is indicated by a symbol “ST”.

In the present embodiment, as an example, a case will be described in which the distribution calculated as the total driving tendency by the total driving tendency calculating unit 42C is represented by a normal distribution shown in FIG.
The individual driving tendency calculation unit 42D refers to the individual traveling information received from the individual traveling information storage unit 52, and operates the vehicle C selected from the plurality of vehicles C based on the traveling information for a plurality of vehicles. The individual driving tendency which is the driving tendency of the person is calculated.

The calculation of the individual driving tendency is performed by using the base station side non-priority road signal received from the base station side road characteristic determination unit 42A and the value used by the total driving tendency calculation unit 42C for calculating the total driving tendency. Therefore, in the present embodiment, as an example, a case where the individual driving tendency is calculated using the vehicle speed of the vehicle C detected by the vehicle speed detection unit 6 and the position of the vehicle C detected by the vehicle position detection unit 8 will be described.

Specifically, first, reference is made to non-priority road information included in the base station-side non-priority road signal. Furthermore, the total number of detections of the travel information detected by the selected one vehicle C for the same non-priority road based on the individual travel information received from the individual travel information storage unit 52 is equal to or greater than the determination detection number. It is determined whether or not.
Next, in the same non-priority road that is determined that the total number of detections of the travel information detected by the selected vehicle C is equal to or greater than the number of detections for determination, the non-priority road is selected for the selected vehicle C. Detect the stop position above.

Then, the distance from the center of the no-signal intersection to the stop position on the non-priority road is detected as an individual driving tendency for the selected vehicle C.
The process for detecting the stop position on the non-priority road and the process for detecting the distance from the center of the no-signal intersection to the stop position on the non-priority road are similarly performed for all the vehicles C. That is, the calculation of the individual driving tendency is performed for all of the plurality of vehicles C.

Then, the individual driving tendency calculation unit 42D uses an information signal (hereinafter, may be referred to as an “individual driving tendency signal”) in which identification information unique to the vehicle C is associated with the calculated individual driving tendency. It outputs to the tendency determination part 42E.
The driver-specific driving tendency determination unit 42E receives the input of the total driving tendency signal from the total driving tendency calculation unit 42C, and receives the input of the individual driving tendency signal from the individual driving tendency calculation unit 42D. Based on the total driving tendency and the individual driving tendency, whether the individual driving tendency deviates from the total driving tendency by a predetermined deviation degree threshold value or more for all the drivers who drive the plurality of vehicles C. Determine whether or not.

Specifically, for the distribution (see FIG. 3) calculated as the total driving tendency by the total driving tendency calculation unit 42C, the same type of travel information as that used by the individual driving trend calculation unit 42D for calculating the total driving tendency. The individual driving tendency calculated using is collated.
Then, if the individual driving tendency collated with the distribution calculated as the total driving tendency deviates from the average value by the standard deviation σ or more, it is determined that the individual driving tendency deviates from the total driving tendency by the deviation degree threshold value or more. To do. And the information signal containing the driving | running | working information used for calculation of the individual driving tendency which has deviated more than the deviation degree threshold value from the total driving tendency is output to the driving tendency extracting unit 42F.

That is, the divergence degree threshold value is a value set in advance according to the distribution (see FIG. 3) calculated as the total driving tendency by the total driving tendency calculation unit 42C. The deviation degree threshold is stored in the driver-specific driving tendency determination unit 42E.
When the driving tendency extraction unit 42F receives an input of an information signal including driving information used for calculation of the individual driving tendency that deviates from the total driving tendency to a deviation degree threshold value or more from the driving tendency determination unit 42E by driver, This traveling information is referred to. Then, identification information unique to the vehicle C associated with the referenced traveling information is extracted.

Next, a driver who drives one vehicle C that has been determined to deviate from the total driving tendency by a deviation degree threshold value or more is defined as a deviation tendency driver. In addition, using the extracted identification information, deviation tendency vehicle information that is information corresponding to identification information unique to the vehicle C driven by the deviation tendency driver is generated.
In other words, the divergence tendency driver is a driver that the driving tendency determination unit 42E according to the driver determines that the divergence degree exceeds the divergence degree threshold value from the total driving tendency.

Next, the driving tendency extraction unit 42F determines whether or not the driving tendency transmission request signal transmitted by the traveling frequency determination unit 28 has been received. And if it determines with having received the driving tendency transmission request signal from the driving frequency determination part 28, it may describe as the information signal containing the deviation tendency vehicle information produced | generated as mentioned above (henceforth "divergence tendency vehicle signal"). Is output to the base station side transmitter 46.
The base station side receiving unit 44 receives the travel information transmitted by the vehicle side transmitting unit 22 included in the plurality of vehicles C via the communication path 4.

In addition, when receiving the driving tendency transmission request signal transmitted from the stop target position selection unit 34, the base station side receiving unit 44 outputs the received driving tendency transmission request signal to the driving tendency extraction unit 42F.
The base station side transmission unit 46 transmits the base station side non-priority road signal and the base station side stop target position signal to the vehicle side reception unit 24 included in the plurality of vehicles C via the communication path 4.
Further, when the base station side transmission unit 46 receives an input of the deviation tendency vehicle signal from the driving tendency extraction unit 42 </ b> F, the vehicle including the plurality of vehicles C includes the deviation tendency vehicle signal via the communication path 4. To the side receiver 24.

(Specific processing when the notification content generation unit 36 generates a command signal)
Hereinafter, specific processing when the notification content generation unit 36 generates a command signal will be described.
The notification content generation unit 36 generates a command signal to be output to the notification unit 18 according to the traveling information of the vehicle C generated by the controller 16 and the non-priority road information and stop target position information received by the vehicle side reception unit 24. To do. Then, the generated command signal is output to the notification unit 18.
Specifically, the vehicle-side non-priority road information or the base station-side non-priority road information is collated with the map data stored in the vehicle-side map data storage unit 26. Further, based on the traveling information of the vehicle C generated by the controller 16, it is determined whether or not the road on which the vehicle C will travel is a non-priority road.

When it is determined that the road on which the vehicle C is going to travel is a non-priority road, the traveling vehicle C is actually using the stop target position selected by the stop target position selection unit 34 (base station side stop target position or vehicle side stop). It is determined whether or not the target position is approaching. This determination is made based on the map data stored in the vehicle-side map data storage unit 26, the travel information of the vehicle C generated by the controller 16, and the actual use stop target position selected by the stop target position selection unit 34. .

When the vehicle C is traveling on a non-priority road toward a no-signal intersection, the current use of the vehicle C is determined based on the actual use stop target position selected by the stop target position selection unit 34 and the current position of the vehicle C. The distance from the position to the actual use stop target position is calculated.
Next, it is determined whether or not the following formula (1) is satisfied.
L <Vt + V ² / (2a) (1)
In the above formula (1), “L” is the distance from the current position of the vehicle C to the actual use stop target position, and V [m / s] is the current vehicle speed of the vehicle C. Further, t [s] is a set value of a reaction time from when the information is presented from the notification unit 18 until the driver performs a braking operation (depresses the brake pedal), and a [m / s ² ] is This is the deceleration setting value.

As a result, the distance L from the current position of the vehicle C to the actual use stop target position is compared with the distance until the driver who received the alert performs a braking operation and the traveling vehicle C actually stops. .
And when said Formula (1) is materialized, it is determined whether the present vehicle speed V is 10 [km / h] or less.
When the above equation (1) is established and the current vehicle speed V exceeds 10 [km / h], the audio information output from the notification unit 18 is, for example, “Further stop brake”. Set the message to prompt a pause or deceleration. This notifies the driver of the vehicle C of the presence of the temporary stop sign and guides the position where the vehicle C stops to the actual use stop target position.

(Processes performed by the road information creation / distribution system S)
Hereinafter, the processing performed by the road information creation / distribution system S of the present embodiment will be described in detail with reference to FIGS. 1 to 3 and FIGS. 4 to 6.
(Processing performed by the in-vehicle device 1)
First, an example of processing performed by the in-vehicle device 1 among processing performed by the road information creation / distribution system S will be described.
4 and 5 are flowcharts showing processing performed by the in-vehicle device 1.
As shown in FIGS. 4 and 5, when the in-vehicle device 1 starts processing (START), first, in step S10, it is determined whether or not the ignition switch is in an ON state (“IGN ON? )).

If it is determined in step S10 that the ignition switch is in the ON state ("Y" shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S20.
On the other hand, when it is determined in step S10 that the ignition switch is in the OFF state ("N" shown in the figure), the in-vehicle device 1 repeats the process of step S10.
In step S20, the vehicle speed detection unit 6 detects the vehicle speed, and the vehicle position detection unit 8 detects the current position ("detects the current position and vehicle speed of the vehicle" shown in the figure). In step S20, when the vehicle speed and the current position of the vehicle C are detected, the processing performed by the in-vehicle device 1 proceeds to step S30.

In step S30, the current position of the vehicle C detected in step S20, the map data stored in the vehicle-side map data storage unit 26, the calculation result, and the like are referred to. Then, a road where the vehicle C is currently traveling and an intersection where the road intersects are detected (“detect a road and an intersection” shown in the figure). In step S30, when a road where the vehicle C is currently traveling and an intersection where the road intersects are detected, the processing performed by the in-vehicle device 1 proceeds to step S40.

In step S40, the road on which the vehicle C is currently traveling is a general road or a highway with reference to the map data stored and stored in the vehicle-side map data storage unit 26 detected in step S30. Is determined (“general road?” Shown in the figure).
If it is determined in step S40 that the road on which the vehicle C is currently traveling is a general road ("Y" shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S50.

On the other hand, if it is determined in step S40 that the road on which the vehicle C is currently traveling is an expressway ("N" shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S230.
In step S50, the stored / accumulated travel information (travel history) is read from the vehicle-side travel information recording unit 20 ("reading past travel record" shown in the figure). In step S50, when the traveling information is read from the vehicle-side traveling information recording unit 20, the processing performed by the in-vehicle device 1 proceeds to step S60.

In step S60, it is determined whether or not the travel information (travel history) read in step S50 includes information on the road on which the vehicle C is currently traveling detected in step S30 ("road shown in the figure" Do you have any information? ”).
In step S60, when it is determined that the road information detected in step S30 is included in the travel information read in step S50 ("Y" shown in the drawing), the processing performed by the in-vehicle device 1 proceeds to step S70. Transition.

On the other hand, if it is determined in step S60 that the road information detected in step S30 is not included in the travel information read in step S50 ("N" in the figure), The process proceeds to S150.
In step S70, the road information detected in step S30 and the driving information of the vehicle C on the road detected in step S30 are stored and accumulated in the vehicle-side driving information recording unit 20 ("road information and driving information shown in the figure"). Record "). In step S70, when the road information and the travel information are stored and accumulated in the vehicle-side travel information recording unit 20, the processing performed by the in-vehicle device 1 proceeds to step S80.

In step S80, the traveling frequency determination unit 28 determines whether or not the number of times of traveling that is the number of times the host vehicle C has traveled on the road detected in step S30 exceeds the number of times of traveling determination (five times) (FIG. "The number of times of already traveling> the number of times of already traveling determination?"
In step S80, when it is determined that the number of already traveled times exceeds the number of times of already traveled determination ("Y" shown in the drawing), the processing performed by the in-vehicle device 1 proceeds to step S90.

On the other hand, if it is determined in step S80 that the number of already traveled is equal to or less than the number of times for already traveled determination ("N" shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S150.
In step S90, it is determined whether or not the vehicle speed of the vehicle C (own vehicle) traveling on the road detected in step S30 is equal to or lower than 10 [km / h] (determination speed). This determination is performed for a range (within a determination range) within a radius of 30 [m] from the center of the intersection detected in step S30 (shown in the figure as “the vehicle speed is 10 km / h or less within a predetermined range before the intersection). ? ").

In step S90, when it is determined that the vehicle speed of the vehicle C traveling on the road detected in step S30 is 10 km / h or less ("Y" shown in the drawing), the processing performed by the in-vehicle device 1 is as follows. The process proceeds to step S100.
On the other hand, when it is determined in step S90 that the vehicle speed of the vehicle C traveling on the road detected in step S30 is not less than 10 [km / h] (“N” shown in the figure), the in-vehicle device 1 performs. The process proceeds to step S150.

In step S100, it is determined whether or not the number of times the vehicle C has traveled at a speed of 10 km / h or less out of the total number of times the vehicle C has entered the intersection detected in step S30 is 90% or more of the total number (shown in the figure). “Is the number of times of traveling at a speed of 10 km / h or less 90% or more of the total number of times?”). Of the total number of times the vehicle C has entered the intersection detected in step S30, the number of times it has traveled at a speed of 10 km / h or less is the number of times that the road detected in step S30 has been determined as a non-priority road.

When it is determined in step S100 that the number of times of traveling at a speed of 10 km / h or less is 90% or more of the total number ("Y" shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S110. .
On the other hand, if it is determined in step S100 that the number of times of traveling at a speed of 10 km / h or less is less than 90% of the total number of times (“N” in the figure), the processing performed by the in-vehicle device 1 proceeds to step S150. Transition.

In step S110, the vehicle-side stop target position setting unit 32 sets the vehicle-side stop target position (“sets the vehicle-side stop target position” shown in the figure). In step S110, when the vehicle-side stop target position is set, the processing performed by the in-vehicle device 1 proceeds to step S120.
In step S120, a driving tendency transmission request signal is transmitted to the base station B ("Send driving tendency transmission request signal" shown in the figure). If the driving tendency transmission request signal is transmitted in step S120, the processing performed by the in-vehicle device 1 proceeds to step S130.

In step S130, the stop target position selection unit 34 receives a deviation tendency vehicle signal from the driving tendency extraction unit 42F. Then, it is determined whether the identification information unique to the vehicle C stored in the controller 16 is the same as the identification information unique to the vehicle C included in the deviation tendency vehicle information. Thus, in step S130, it is determined whether or not the driver (Dr) of the host vehicle is a deviation-prone driver ("Dr is a deviation-prone driver" in the figure).

If it is determined in step S130 that the driver of the host vehicle is not a driver with a tendency to diverge (“N” in the drawing), the processing performed by the in-vehicle device 1 proceeds to step S140.
On the other hand, if it is determined in step S130 that the driver of the host vehicle is a driver with a tendency to diverge (“Y” in the figure), the processing performed by the in-vehicle device 1 proceeds to step S150.

In step S140, the stop target position selection unit 34 selects the vehicle-side stop target position included in the vehicle-side stop target position signal as the actual use stop target position used in the processing of the notification content generation unit 36. Then, the vehicle-side stop target position included in the vehicle-side stop target position signal is stored and stored in the vehicle-side travel information recording unit 20 (“recording / accumulating in the vehicle-side travel information recording unit” shown in the figure). In step S140, when the vehicle-side stop target position is selected as the actual use stop target position, and the vehicle-side stop target position is stored and stored in the vehicle-side travel information recording unit 20, the processing performed by the in-vehicle device 1 proceeds to step S180. Transition.

In step S150, the travel frequency determination unit 28 transmits a non-priority road information transmission request signal to the base station B ("inquiry to the base station" shown in the figure). In step S150, when the non-priority road information transmission request signal is transmitted to the base station B, the processing performed by the in-vehicle device 1 proceeds to step S160.
In step S160, the stop target position selector 34 determines whether a base station side stop target position signal is received from the base station B. Thus, in step S160, it is determined whether or not there is information on the base station side target stop position ("There is information on the base station side target stop position?" Shown in the figure).

If it is determined in step S160 that there is information on the base station side stop target position ("Y" shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S170.
On the other hand, if it is determined in step S160 that there is no information on the base station side stop target position ("N" shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S180.

In step S170, the stop target position selection unit 34 selects the base station side stop target position included in the base station side stop target position signal as the actual use stop target position used in the processing of the notification content generation unit 36 (in the figure). "Select base station side stop target position"). Then, the base station-side stop target position included in the base station-side stop target position signal is stored and accumulated in the vehicle-side travel information recording unit 20. In step S170, when the base station side stop target position is selected as the actual use stop target position, and the base station side stop target position is stored and accumulated in the vehicle side travel information recording unit 20, the processing performed by the in-vehicle device 1 The process proceeds to S180.

In step S180, the current position detected by the vehicle position detection unit 8 and the vehicle-side non-priority road information or the base station-side non-priority road information are collated with map data stored in the vehicle-side map data storage unit 26. Thus, it is determined whether or not the road on which the vehicle C is traveling is a non-priority road ("running on a non-priority road?" Shown in the figure).
If it is determined in step S180 that the road on which the vehicle C is traveling is a non-priority road ("Y" in the figure), the processing performed by the in-vehicle device 1 proceeds to step S190.

On the other hand, when it is determined in step S180 that the road on which the vehicle C is traveling is not a non-priority road ("N" shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S230.
In step S190, a distance L from the current position of the vehicle C to the actual use stop target position is calculated based on the actual use stop target position selected by the stop target position selection unit 34 and the current position of the vehicle C (in the figure). "Calculate the distance L from the current vehicle position to the target stop position"). When the distance L from the current position of the vehicle C to the actual use stop target position is calculated in step S190, the processing performed by the in-vehicle device 1 proceeds to step S200.

In step S200, it is determined whether or not the above equation (1) holds (“L <Vt + V ² / (2a)?” Shown in the figure).
When it is determined in step S200 that the above-described expression (1) is satisfied (“Y” shown in the drawing), the processing performed by the in-vehicle device 1 proceeds to step S210.
On the other hand, if it is determined in step S200 that the above equation (1) does not hold ("N" shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S230.

In step S210, it is determined whether or not the current vehicle speed V exceeds 10 [km / h] (“V> 10 km / h?” Shown in the figure).
If it is determined in step S210 that the current vehicle speed V exceeds 10 [km / h] (“Y” shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S220.
On the other hand, if it is determined in step S210 that the current vehicle speed V is 10 [km / h] or less (“N” shown in the figure), the processing performed by the in-vehicle device 1 proceeds to step S230.

In step S220, it is determined that it is difficult to stop the running vehicle C at the stop target position at the current vehicle speed V and position, and a warning that prompts deceleration / stop is output from the notification unit 18 (in the drawing). (Warning notification) shown in FIG. If the process which outputs the warning of the content which accelerates | stimulates deceleration / stop from the alerting | reporting part 18 is performed in step S220, the process which the vehicle equipment 1 performs will transfer to step S230.

In step S230, it is determined whether or not the ignition switch is in an OFF state ("IGN OFF?" Shown in the figure).
If it is determined in step S230 that the ignition switch is in the OFF state (“Y” shown in the figure), the in-vehicle device 1 ends the process (END).
On the other hand, if it is determined in step S230 that the ignition switch is in the ON state ("N" shown in the figure), the processing performed by the in-vehicle device 1 returns to the processing in step S20.

(Processing performed by the road information creation / distribution device 2)
Next, an example of processing performed by the road information creation / distribution apparatus 2 among the processing performed by the road information creation / distribution system S will be described.
FIG. 6 is a flowchart showing processing performed by the road information creation / distribution device 2.
As shown in FIG. 6, when the road information creation / distribution device 2 starts processing (START), first, processing in step S300 is performed.
In step S300, it is determined whether or not an information signal (travel information) transmitted via the communication path 4 from the vehicle-side transmitter 22 included in the plurality of vehicles C is received ("travel information reception shown in the figure"). ?)).

If it is determined in step S300 that the travel information transmitted from the vehicle-side transmitter 22 is received ("Y" in the figure), the processing performed by the road information creation / distribution device 2 proceeds to step S310. To do.
On the other hand, if it is determined in step S300 that the travel information transmitted from the vehicle-side transmitter 22 has not been received ("N" in the figure), the road information creation / distribution device 2 performs the process of step S300. repeat.

In step S310, the entire traveling information is recorded in the entire traveling information storage unit 50 based on the traveling information transmitted from the vehicle-side transmission unit 22 provided in the plurality of vehicles C. In addition to this, based on the travel information transmitted from the vehicle-side transmission unit 22 included in the plurality of vehicles C, each individual travel information is stored in each individual travel information storage unit 52 ("travel information (Dr separate / all vehicles) shown in the figure"). To record "). In step S310, when the total travel information is recorded in the total travel information storage unit 50 and each individual travel information is recorded in each individual travel information storage unit 52, the processing performed by the road information creation / distribution device 2 proceeds to step S320.

In step S320, it is determined whether or not the total travel information recorded in the total travel information storage unit 50 and each individual travel information recorded in each individual travel information storage unit 52 has reached a preset accumulated information amount (FIG. "Running information ≥ amount of stored information?" Here, the amount of accumulated information is, for example, 5 or more for the entire traveling information and each individual traveling information.
In step S320, when it is determined that the total travel information and the individual travel information have reached the accumulated information amount ("Y" in the figure), the processing performed by the road information creation / distribution device 2 proceeds to step S330. .

On the other hand, if it is determined in step S320 that the total travel information and each individual travel information have not reached the accumulated information amount ("N" in the figure), the processing performed by the road information creation / distribution device 2 proceeds to step S300. Return.
In step S330, the overall travel information is read from the overall travel information storage unit 50, and the individual travel information is read from each individual travel information storage unit 52 ("reading travel information" shown in the figure). In step S330, when the overall traveling information and the individual traveling information are read, the processing performed by the in-vehicle device 1 proceeds to step S340.

In step S340, the number of times of traveling on a road that intersects at one selected no-signal intersection is calculated. This calculation is performed for all the vehicles C using the entire traveling information, and similarly for all the vehicles C, for one vehicle C selected using the individual traveling information (in the figure). "Dr./Calculation of the number of travels for each vehicle"). When the number of times of traveling is calculated in step S340, the processing performed by the in-vehicle device 1 proceeds to step S350.

In step S350, it is determined whether or not a point where the slowing probability detected by a plurality of vehicles C is 90 [%] or more is within the determination range from the no-signal intersection (“vehicle speed is 10 km / The number of times the position that is equal to or less than h falls within the determination range is 90% or more? ").
In step S350, when it is determined that the point where the slowing probability is 90% or more is within the determination range from the no-signal intersection ("Y" in the figure), the road information creation / distribution device 2 performs the determination. The process proceeds to step S360.

On the other hand, when it is determined in step S350 that the point where the slowing probability is 90 [%] or more is not within the determination range (“N” shown in the drawing) from the no-signal intersection, the road information creation / distribution device 2 The process performed by the process proceeds to step S400.
In step S360, the road determined as the non-priority road in step S350 is determined to be a non-priority road (ie, “non-priority road and judge. If the non-priority road is determined in step S360, the processing performed by the in-vehicle device 1 proceeds to step S370.

In step S370, the base station side target stop position setting unit 42B sets the base station side target stop position ("set base station side target stop position" shown in the figure). When the base station side target stop position is set in step S370, the processing performed by the in-vehicle device 1 proceeds to step S380.
In step S380, the driver-specific driving tendency determination unit 42E determines whether the individual driving tendency deviates from the total driving tendency to a deviation degree threshold value or more. Here, the determination as to whether or not the individual driving tendency deviates from the total driving tendency beyond the deviation degree threshold is made for all drivers (Dr) driving a plurality of vehicles C (shown in the figure). “Dr. driving tendency is determined”). If it is determined in step S380 whether or not the individual driving tendency deviates from the total driving tendency to a deviation degree threshold value or more for all the drivers who drive the plurality of vehicles C, the road information creation / distribution device 2 The processing to be performed moves to step S390.

In step S390, the non-priority road signal including the base station-side non-priority road information associated with the signal no-intersection at which the non-priority road determined in step S360 intersects is output to the base station-side database 38. Thereby, the base station side non-priority road information is registered in the base station side database 38 ("Register in road information database" shown in the figure). In step S390, when the base station side non-priority road information is registered in the base station side database 38, the processing performed by the road information creation / distribution device 2 proceeds to step S400.

In step S400, it is determined whether or not at least one of the non-priority road information transmission request signal and the driving tendency transmission request signal is received from the in-vehicle device 1 (“There is an information transmission request from the in-vehicle device? )).
When it is determined in step S400 that at least one of the non-priority road information transmission request signal and the driving tendency transmission request signal is received ("Y" shown in the figure), the processing performed by the road information creation / distribution device 2 Proceeds to step S410.

On the other hand, if it is determined in step S400 that the non-priority road information transmission request signal and the driving tendency transmission request signal have not been received ("N" shown in the figure), the processing performed by the road information creation / distribution device 2 is: Return to step S300 (RETURN).
In step S410, when the driving tendency transmission request signal is received from the in-vehicle device 1, the driving tendency extraction unit 42F outputs the deviation tendency vehicle signal to the base station side transmission unit 46. Thereby, in step S410, a deviation tendency vehicle signal is transmitted to the base station B ("transmission tendency vehicle signal shown in the figure" is transmitted to the base station). In step S410, when the divergence tendency vehicle signal is transmitted to the base station B, the processing performed by the road information creation / distribution device 2 proceeds to step S420.

In step S420, when the non-priority road information transmission request signal is received from the in-vehicle device 1, the base station-side non-priority road information related to the non-priority road information transmission request signal is extracted from the base station side database 38. In step S420, the base station side stop target position information set for the base station side non-priority road related to the non-priority road information transmission request signal is extracted ("each information is extracted" shown in the figure). When the base station side non-priority road information and the base station side stop target position information are extracted in step S420, the processing performed by the road information creation / distribution device 2 proceeds to step S430.

In step S430, the base station side non-priority road information and base station side stop target position information extracted in step S420 are transmitted from the base station side transmission unit 46 via the communication path 4 to the above-described request signal. 1 ("extracted information is transmitted to the in-vehicle device" shown in the figure). In step S430, when the base station-side non-priority road information and the base station-side stop target position information are transmitted to the in-vehicle device 1 that has transmitted the request signal, road information generation / distribution system S includes road information. The processing performed by the creation / distribution apparatus 2 ends (END).

(Operation)
Next, an example of the operation performed by the road information creation / distribution system S of the present embodiment will be described with reference to FIGS.
When the traveling vehicle C (own vehicle C) determines that the road to be traveled is a road on which the own vehicle C has traveled in the past, it determines whether or not the number of times of traveling has exceeded the number of times of traveling determination. To do. Then, when the number of already running times exceeds the number of times for already running judgment, the non-priority road is judged based only on the running information detected by the own vehicle C. Further, when it is determined that the road on which the host vehicle C is going to travel is a non-priority road, it is determined whether or not the point where the slowing probability is 90% or more is within the determination range from the no-signal intersection.

Next, when it is determined that a point where the slowing probability is 90 [%] or more is within the determination range from the no-signal intersection, the vehicle-side stop target position is set based only on the travel information detected by the host vehicle C.
Here, in this embodiment, the stop target position selection unit 34 determines whether the identification information unique to the host vehicle C is the same as the identification information unique to the vehicle C included in the deviation tendency vehicle information.

If the two pieces of identification information described above are the same, the base station-side stop target position set based on the total travel information stored in the total travel information storage unit 50 is selected as the actual use stop target position.
On the other hand, when the two pieces of identification information described above are different, the vehicle-side stop target position set based only on the travel information detected by the host vehicle C is selected as the actual use stop target position.

Therefore, in the present embodiment, for the driver of the own vehicle C traveling on a non-priority road (commuting route, etc.) where the number of already traveling exceeds the number of times for the already traveling determination, this driver corresponds to the vehicle tendency information. When not, it becomes possible to alert | report the warning of the content according to the vehicle side stop target position.
Further, in the present embodiment, when the driver corresponds to the divergence tendency vehicle information with respect to the driver of the own vehicle C traveling on the non-priority road whose number of already traveling exceeds the number of times of already traveling determination, It is possible to notify a warning having contents corresponding to the station-side stop target position.

Further, in the present embodiment, a warning of the content corresponding to the base station side stop target position is notified to the driver of the host vehicle C traveling on a non-priority road whose number of traveling is less than or equal to the number of times of traveling determination. It becomes possible.
For this reason, it is possible to reduce the possibility that the driver of the vehicle C traveling on the non-priority road that travels frequently will receive a sense of incongruity or annoyance from the information notified from the notification unit 18. Become.

As described above, the road information creation / distribution method implemented by the operation of the road information creation / distribution apparatus 2 of the present embodiment determines whether or not the number of already running runs exceeds the number of times for running judgment. Then, the road including the point where the slowing probability is equal to or higher than the determination probability is extracted from the stored no signal intersection, and the road intersecting at the stored signal no intersection is extracted. Of these, it is determined that the road is a non-priority road that includes a point that needs to be temporarily stopped. Furthermore, a stop target position for temporarily stopping the vehicle on the determined non-priority road is set, and a warning of the content corresponding to the stop target position is notified to the driver of the vehicle C. In this method, if the road that has been determined that the number of times of traveling has exceeded the number of times of determination for traveling is a non-priority road that has been determined, the vehicle C that has been determined that the number of times of traveling has exceeded the number of times of determination for traveling The stop target position is set based on the traveling information only. In addition to this, when the road that has been determined that the number of already-running times is less than or equal to the number of times of already-traveling determination is a non-priority road that has been determined, the vehicle C that has been determined that the number of already-running times is less than or equal to the number of times of already-traveling determination is included. Based on the traveling information of the plurality of vehicles C, the stop target position is set.

(Effects of the first embodiment)
The road information creation / distribution system S of the present embodiment can achieve the effects described below.
(1) If the road that the stop target position setting unit has determined by the travel frequency determination unit 28 that the number of already-running times exceeds the number of times of already-running determination is a non-priority road, the number of already-running traveling times The stop target position is set based on the travel information of only the vehicle C that is determined to exceed. In addition to this, when the road that has been determined by the travel frequency determination unit 28 that the number of already traveled is less than or equal to the number of times for already traveled determination is a non-priority road, the number of already traveled is determined to be less than or equal to the number of times for already traveled determination. Based on the traveling information of a plurality of vehicles C including the vehicle C, the stop target position is set.

Therefore, the stop target position set based on the traveling information of only the vehicle C for the driver of the host vehicle C traveling on a non-priority road (commuting route or the like) where the number of times of traveling exceeds the number of times of determination for traveling It is possible to notify a warning having a content corresponding to
As a result, the stop target position can be set according to the frequency of traveling on the non-priority road, and a warning of the content corresponding to the set stop target position can be notified to the driver of the vehicle C. Become.

Therefore, it is possible to suppress notification based on the traveling information of other vehicles when traveling on a non-priority road that travels frequently. For this reason, it is possible to reduce the possibility that the driver of the vehicle C traveling on the non-priority road that travels frequently will receive a sense of incongruity or annoyance from the information notified from the notification unit 18. Become.
As a result, the driver is distrusted by the performance of the road information creation / distribution system S, and the problem is that it is difficult to accept the information provided and notified from the road information creation / distribution system S. Occurrence can be suppressed.

In addition, when traveling on a non-priority road that travels less frequently, such as a non-priority road that travels for the first time, the content according to the stop target position set based on the travel information of other vehicles already traveling on the non-priority road The warning can be notified to the driver of the vehicle C.
For this reason, it is possible to alert the driver of the vehicle C traveling on a non-priority road that travels less frequently to prompt appropriate deceleration or temporary stop.

(2) The overall traveling information accumulation unit 50 accumulates the entire traveling information, which is traveling information received from the plurality of vehicles C, based on the received traveling information for a plurality of vehicles. In addition, the base station-side stop target position setting unit 42B temporarily places the vehicle C on the non-priority road determined by the base station-side road characteristic determination unit 42A based on the total travel information stored in the total travel information storage unit 50. Set the base station stop target position to stop.

For this reason, when the number of already traveled times is equal to or less than the number of times of already traveled determination, the base station-side stop target position can be set based on the overall travel information accumulated in the overall travel information accumulation unit 50.
As a result, the base station side set based on the overall travel information accumulated in the overall travel information accumulation unit 50 for the driver of the own vehicle C traveling on the non-priority road whose number of existing travels is equal to or less than the number of times of already travel determination It is possible to notify a warning having contents corresponding to the stop target position.

(3) The driver-specific driving tendency determination unit 42E determines whether or not the individual driving tendency deviates from the total driving tendency to a predetermined deviation degree threshold value or more for all drivers. In addition, the driving tendency extraction unit 42F extracts identification information unique to the vehicle C driven by the deviation tendency driver, and the base station side transmission unit 46 transmits the deviation tendency vehicle information corresponding to the extracted identification information. It transmits to the in-vehicle device 1.

For this reason, it is possible to determine whether or not the driver corresponds to the divergence tendency vehicle information for the driver of the own vehicle C traveling on the non-priority road whose number of already traveling exceeds the number of times for the already traveling determination. It becomes possible.
As a result, a warning of the content corresponding to the stop target position on the base station side set based on the overall travel information stored in the overall travel information storage unit 50 is notified to the driver of the host vehicle C corresponding to the deviation tendency vehicle information. It becomes possible to do.

Thus, for example, for a driver with a driving tendency to stop within a no-signal intersection or a driver with a driving tendency to pass through a non-priority road without temporarily stopping, based on the driving information of other drivers It is possible to notify a warning having contents corresponding to the set base station side stop target position.
For this reason, for example, for drivers who tend to stop within a no-signal intersection or drivers who tend to drive through non-priority roads without stopping temporarily, etc. It is possible to call attention.

(4) The traveling frequency determination unit 28 determines whether or not the number of already traveling exceeds the number of times for already traveling determination based on the traveling information of only the host vehicle C. Further, if the road on which the vehicle-side stop target position setting unit 32 has determined that the number of already running times exceeds the number of times of already-running determination is the non-priority road determined by the vehicle-side road characteristic determining unit 30, A vehicle-side stop target position is set based on the traveling information of C only.

In addition to this, if the road that the stop target position selection unit 34 has determined that the number of already running times exceeds the number of times for the already-running determination is a non-priority road, the vehicle-side stop is set as the stop target position corresponding to the content of the warning. Select the target position. Furthermore, if the road that has been determined that the number of already running is less than or equal to the number of times for already running is a non-priority road, the base station side stop target position is selected as the stop target position corresponding to the content of the warning.

For this reason, according to the vehicle-side stop target position set based on the traveling information of only the vehicle C, the driver of the host vehicle C traveling on the non-priority road whose number of traveling times exceeds the number of times of traveling determination. The content warning can be notified. In addition to this, the base station set based on the total travel information accumulated in the total travel information accumulation unit 50 for the driver of the host vehicle C traveling on the non-priority road whose number of previous travels is equal to or less than the number of times of previous travel determination It is possible to notify a warning having contents corresponding to the side stop target position.

As a result, the stop target position can be set according to the frequency of traveling on the non-priority road, and a warning of the content corresponding to the set stop target position can be notified to the driver of the vehicle C. Become.
In addition, when the road that has been determined that the number of already-running times exceeds the number of times of already-running determination is a non-priority road, the processing can be performed only by the in-vehicle device 1, and the road information creation / distribution system S It is possible to reduce the load related to the arithmetic processing.

(5) When the stop target position selection unit 34 corresponds to the identification information corresponding to the received divergence tendency vehicle information that corresponds to a vehicle that has been determined that the number of already-running times exceeds the number of times of already-running determination, The base station side stop target position is selected as the corresponding stop target position.
For this reason, for example, a driver with a driving tendency to stop within a no-signal intersection or a driver with a driving tendency to pass through a non-priority road without performing a temporary stop is based on the driving information of other drivers. It is possible to notify a warning having contents corresponding to the set base station side stop target position.
As a result, for example, to encourage drivers who tend to stop within signal-free intersections, or drivers who tend to drive on non-priority roads without stopping temporarily, to promptly decelerate or pause It is possible to call attention.

(6) In the road information creation / distribution method according to the present embodiment, if the road that has been determined to have exceeded the number of times of already-traveled determination is a non-priority road that has been determined, The stop target position is set based on the travel information of only the vehicle C determined to exceed the number of times. In addition to this, when the road that has been determined that the number of already running is less than or equal to the number of times for already running is a non-priority road, a plurality of vehicles including the vehicle C that has been determined that the number of already running is less than or equal to the number of times for already running Based on the traveling information of the vehicle C, the stop target position is set.

For this reason, for the driver of the host vehicle C traveling on a non-priority road whose number of times of traveling exceeds the number of times of determination for already traveling, the content corresponding to the stop target position set based on the traveling information of only the vehicle C A warning can be notified.
As a result, the stop target position can be set according to the frequency of traveling on the non-priority road, and a warning of the content corresponding to the set stop target position can be notified to the driver of the vehicle C. Become.

Therefore, it is possible to suppress notification based on the traveling information of other vehicles when traveling on a non-priority road that travels frequently. For this reason, it becomes possible to reduce the possibility that the driver of the vehicle C traveling on the non-priority road that travels frequently receives a sense of incongruity or annoyance from the notified information.
When the vehicle travels on a non-priority road that is less frequently traveled, the driver of the vehicle C is warned of a content corresponding to the stop target position set based on the travel information of another vehicle already traveling on the non-priority road. Can be notified. For this reason, it is possible to alert the driver of the vehicle C traveling on a non-priority road that travels less frequently to prompt appropriate deceleration or temporary stop.

(Modification)
(1) In the present embodiment, the message content of the voice information output from the notification unit 18 is changed according to the position of the stop target position and the host vehicle, the vehicle speed of the host vehicle, and the like, but is not limited to this. For example, the volume of the voice information may be changed along with the change of the message content.
(2) In the present embodiment, the deviation tendency vehicle information is used for determination of a deviation tendency driver, but the use of the deviation tendency vehicle information is not limited to this. In other words, for example, the driving characteristics of the driver may be calculated based on the divergence tendency vehicle information, and may be used for setting the optional car insurance. In this case, the divergence tendency vehicle information can be transmitted via the communication path 4 to an insurance company or the like that handles the optional car insurance.

As described above, the entire contents of the Japanese Patent Application 2012-057861 (filed on Mar. 14, 2012) to which the present application claims priority form part of the present disclosure by reference.
Although the present invention has been described with reference to a limited number of embodiments, the scope of rights is not limited thereto, and modifications of each embodiment based on the above disclosure are obvious to those skilled in the art.

DESCRIPTION OF SYMBOLS 1 In-vehicle apparatus 2 Road information creation and distribution apparatus 4 Communication path 6 Vehicle speed detection part 8 Vehicle position detection part 10 ROM
12 RAM
DESCRIPTION OF SYMBOLS 14 Vehicle side database 16 Controller 18 Notification part 20 Vehicle side driving | running | working information recording part 22 Vehicle side transmission part 24 Vehicle side receiving part 26 Vehicle side map data memory | storage part 28 Traveling frequency determination part 30 Vehicle side road characteristic determination part 32 Vehicle side stop target Position setting unit 34 Stop target position selection unit 36 Notification content generation unit 38 Base station side database 40 Base station side travel information recording unit 42 Base station side road condition determination unit 42A Base station side road characteristic determination unit 42B Base station side stop target position Setting unit 42C Comprehensive driving tendency calculation unit 42D Individual driving tendency calculation unit 42E Driver-specific driving tendency determination unit 42F Driver tendency extraction unit 44 Base station side reception unit 46 Base station side transmission unit 48 Base station side map data storage unit 50 Overall Travel information storage unit 52 Individual travel information storage unit S Road information creation / distribution system C Vehicle (C1, C2
B base station ST stop sign

Claims

A map data storage unit storing the position of a no-signal intersection where no traffic lights exist;
Based on travel information including vehicle speed and position information, the number of times the vehicle has traveled in the past on a road intersecting at a no-signal intersection stored in the map data storage unit is set in advance. A travel frequency determination unit that determines whether or not the number of times for the existing travel determination has been exceeded,
Based on the travel information, the probability that the speed of the vehicle is equal to or lower than a predetermined determination speed within a predetermined determination range from the no-signal intersection stored in the map data storage unit is set in advance. A road including a point that is equal to or greater than the probability is extracted, and the extracted road is determined as a non-priority road including a point that needs to be temporarily stopped among roads that intersect at a no-signal intersection stored in the map data storage unit. A road characteristic determination unit;
A stop target position setting unit for setting a stop target position for temporarily stopping the vehicle on the non-priority road determined by the road characteristic determination unit based on the travel information;
A notification unit for notifying a driver of the vehicle of a warning corresponding to the stop target position;
The stop target position setting unit is a non-priority road determined by the road characteristic determination unit, the road determined by the travel frequency determination unit that the number of already traveled exceeds the number of times for the existing travel determination, The stop target position is set based on the travel information of only the vehicle for which it is determined that the number of already traveled exceeds the number of times for the already traveled determination, and the number of already traveled is determined by the travel frequency determining unit. When the road determined to be less than or equal to the number of times of use is a non-priority road determined by the road characteristic determination unit, a plurality of vehicles including vehicles that have been determined that the number of already-traveled times is less than or equal to the number of times of already-traveled determination A road information creation / distribution system characterized in that the stop target position is set based on vehicle travel information.
A road information creation / distribution device provided in the road information creation / distribution system according to claim 1,
A base station side receiving unit for receiving the travel information transmitted by the vehicle;
A base station side map data storage unit storing the position of the no-signal intersection;
Based on the received traveling information for the plurality of vehicles, the speed of the plurality of vehicles within the determination range set in advance from the no-signal intersection stored in the base station side map data storage unit is the determination speed. A road including a point having a probability of being equal to or higher than the determination probability is extracted, and the non-priority among roads intersecting the extracted road at a signal-free intersection stored in the base station side map data storage unit A base station-side road characteristic determination unit for determining a road;
Based on the received travel information for a plurality of vehicles, an overall travel information accumulation unit that accumulates overall travel information that is travel information received from a plurality of the vehicles;
A base station that sets a base station-side stop target position for temporarily stopping the vehicle on the non-priority road determined by the base station-side road characteristic determination unit based on the overall travel information stored in the overall travel information storage unit Side stop target position setting section,
A road information creation / distribution device comprising: a base station side transmission unit that transmits base station side stop target position information corresponding to the base station side stop target position set by the base station side stop position setting unit .
The travel information includes identification information unique to the vehicle that transmitted the travel information,
Based on the received traveling information for a plurality of vehicles, each traveling information storage unit that individually accumulates each traveling information of the plurality of vehicles as individual traveling information,
Based on the overall travel information stored in the overall travel information storage unit, for the plurality of vehicles, an overall driving tendency calculation unit that calculates an overall driving tendency corresponding to the overall driving tendency of all drivers;
Based on each individual travel information stored in each individual travel information storage unit, an individual driving tendency corresponding to the driving tendency of the driver of one vehicle selected from the plurality of vehicles for all the plurality of vehicles. An individual driving tendency calculation unit to calculate,
Based on the total driving tendency calculated by the total driving tendency calculation unit and the individual driving tendency calculated by the individual driving trend calculation unit, the individual driving tendency is preset from the total driving trend for each of the drivers, respectively. A driving tendency determination unit for each driver that determines whether or not the deviation is greater than the threshold value
A vehicle driven by a divergence tendency driver who is a driver determined by the driver-specific driving tendency determination unit to deviate from the total driving tendency to the divergence degree threshold or more from the received traveling information for a plurality of vehicles. A driving tendency extraction unit that extracts identification information unique to the
The road information creation / distribution device according to claim 2, wherein the base station side transmission unit transmits deviation tendency vehicle information corresponding to identification information unique to a vehicle driven by the deviation tendency driver.
An in-vehicle device that comprises the road information creation / distribution system according to claim 1 and communicates with the road information creation / distribution device according to claim 2 or claim 3,
A vehicle speed detector for detecting the speed of a vehicle equipped with the in-vehicle device;
A vehicle position detector for detecting the position of the vehicle;
A vehicle-side map data storage unit storing the position of the no-signal intersection;
Based on travel information including information on the speed detected by the vehicle speed detection unit and the position detected by the vehicle position detection unit, within the determination range from the no-signal intersection stored in the vehicle-side map data storage unit, A road including a point where the probability that the speed of the vehicle is equal to or lower than the determination speed is equal to or higher than the determination probability is extracted, and the extracted road is a signal-free intersection stored in the vehicle-side map data storage unit. A vehicle-side road characteristic determining unit that determines a non-priority road including a point that needs to be temporarily stopped among intersecting roads;
A vehicle-side stop target position setting unit for setting a vehicle-side stop target position for temporarily stopping the vehicle on the non-priority road determined by the vehicle-side road characteristic determination unit based on the travel information;
According to the determination result by the travel frequency determination unit, a stop target position selection unit that selects a stop target position corresponding to the content of the warning notified from the notification unit to the driver;
A vehicle-side transmitter that transmits the travel information to the road information creation / distribution device;
A vehicle-side receiving unit that receives the base station-side stop target position information transmitted by the road information creation / distribution device,
Whether the traveling frequency determination unit exceeds the number of times of the existing traveling determination with respect to a road that intersects at a no-signal intersection stored in the vehicle-side map data storage unit based on the traveling information. Determine whether or not
The vehicle-side stop target position setting unit is a non-priority road that has been determined by the vehicle-side road characteristic determination unit as a road that has been determined by the travel frequency determination unit that the number of previous travels exceeds the number of times of previous travel determination. And the vehicle-side stop target position is set based on the travel information of only the vehicle that has been determined that the number of already-running times exceeds the number of times of already-running determination,
The stop target position selecting unit is a non-priority road determined by the vehicle-side road characteristic determining unit, which is determined by the travel frequency determining unit that the number of already traveled exceeds the number of times of already-running determination. And the road on which the vehicle-side stop target position is selected as the stop target position corresponding to the content of the warning, and the travel frequency determination unit determines that the existing travel count is less than or equal to the existing travel determination count, The vehicle-mounted device, wherein the base station-side stop target position is selected as a stop target position corresponding to the content of the warning if the road is a non-priority road determined by the vehicle-side road characteristic determination unit.
An in-vehicle device that is provided in the road information creation / distribution system according to claim 1 and communicates with the road information creation / distribution device according to claim 3,
The vehicle-side receiving unit receives the deviation tendency vehicle information,
The stop target position selection unit has determined that the number of already traveled times exceeds the number of times of already traveled determination by the travel frequency determining unit based on the identification information corresponding to the deviation tendency vehicle information received by the vehicle side receiving unit. The in-vehicle device according to claim 4, wherein, when a vehicle is applicable, the base station side stop target position is selected as a stop target position corresponding to the content of the warning.
Memorize the position of no signal crossing where there is no traffic light,
Based on traveling information including vehicle speed and position information, the number of times of traveling that is the number of times the vehicle has traveled in the past on the road that intersects at the signal-free intersection is a preset number of times for determination of traveling To determine whether or not
Based on the travel information, a point where the probability that the speed of the vehicle is equal to or lower than a predetermined determination speed is equal to or higher than a predetermined determination probability within a predetermined determination range from the stored no signal intersection And the extracted road is determined as a non-priority road that includes a point that needs to be temporarily stopped among the roads that intersect at the stored signal-free intersection,
Based on the travel information, set a stop target position for temporarily stopping the vehicle on the determined non-priority road,
Notifying the driver of the vehicle of a warning corresponding to the stop target position,
A vehicle that has been determined that the number of existing runs exceeds the number of times of existing travel when the road that has been determined to have exceeded the number of times of previous travel determination is the determined non-priority road The stop target position is set based on only the travel information, and if the road that has been determined that the number of already traveled is less than or equal to the number of times for the already traveled determination is the determined non-priority road, A road information creation / distribution method, wherein the stop target position is set based on traveling information of a plurality of vehicles including vehicles determined to be equal to or less than the number of times of already traveling determination.