JP6967885B2 - Traffic information notification device and traffic information notification method - Google Patents

Description

The present invention relates to a traffic information notification device and a traffic information notification method.

Conventionally, in an in-vehicle navigation device that guides a route along a set route, a configuration has been proposed in which the type of the traffic light is notified when the vehicle approaches the traffic light during the route guidance (for example, Patent Document). 1). As a type of traffic light, a standard traffic light, a time difference type traffic light, an arrow type traffic light and the like are set.

Japanese Unexamined Patent Publication No. 2007-232573

According to the in-vehicle navigation device described in Patent Document 1, the driver can know in advance the type of the traffic light installed at the waypoint to be driven, so that the driver can know in advance the type of the traffic light when driving at an intersection. You can reduce confusion.
However, even when the type of the traffic light is notified to the driver in advance, there may be a problem between the own vehicle and another vehicle when traveling at the intersection.
The present invention has been made in view of the above background, and provides a traffic information notification device and a traffic information notification method that prevent a hindrance between the own vehicle and another vehicle when traveling at an intersection. The purpose is.

The first aspect of the traffic information notification device of the present invention is a traffic information notification device used in a vehicle, which acquires road information including a current position detection unit for detecting the current position of the vehicle and a type of traffic light. Based on the road information acquisition unit, the current position of the vehicle detected by the current position detection unit, and the road information acquired by the road information acquisition unit, the vehicle is specified to have a staggered signal installed. The specific intersection approach detection unit for detecting that the vehicle is traveling toward the intersection and the distance between the vehicle and the specific intersection is equal to or less than a predetermined distance, and the specific intersection approach detection unit for the specific intersection detection unit. When it is detected that the vehicle is approaching an intersection, the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side both display permission to proceed at the specific intersection in the own lane in which the vehicle is traveling. Therefore, either the time difference type signal on the oncoming lane side is the priority lane in which the progress stop display is switched first, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side are both from the progress permission display. comprising either recognizing the priority lane recognition unit lane side of the staggered type traffic signal is a non-priority lane switching to arrest the progress displayed first, and a notification unit that performs a predetermined notification in accordance with the recognition result by the priority lane recognition unit When the priority lane recognition unit recognizes that the own lane is the non-priority lane, the notification unit is opposed even after the signal on the own lane side is switched to the progress stop display as the predetermined notification. It is characterized by notifying that the progress permission display of the traffic light on the lane side is continued.

Further, when the priority lane recognition unit recognizes that the own lane is the priority lane, the notification unit first changes the progress permission display to the progress stop display of the signal on the oncoming lane side as the predetermined notification. It may be configured to notify the switching.

A second aspect of the traffic information notification device of the present invention is a traffic information notification device used in a vehicle, in which a current position detecting unit for detecting the current position of the vehicle and road information including the type of a traffic light are used. A staggered traffic light is installed for the vehicle based on the road information acquisition unit to be acquired, the current position of the vehicle detected by the current position detection unit, and the road information acquired by the road information acquisition unit. The specific intersection approach detection unit and the specific intersection approach detection unit that detect that the vehicle is traveling toward the specific intersection and the distance between the vehicle and the specific intersection is equal to or less than a predetermined distance. When it is detected that the vehicle is approaching the specific intersection, the vehicle is traveling in the own lane, and the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side both advance at the specific intersection. From the permission display, either the time difference type signal on the oncoming lane side is the priority lane that switches to the progress stop display first, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side are both from the progress permission display. A priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that first switches to the progress stop display, and a notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit. The intersection traveling direction estimation unit for estimating the traveling direction of the vehicle at the specific intersection is provided, and the notification unit is based on the recognition result by the priority lane recognition unit and the estimation result by the intersection traveling direction estimation unit. When the priority lane recognition unit recognizes that the own lane is the priority lane and the intersection traveling direction estimation unit estimates that the vehicle goes straight on the specific intersection. The predetermined notification is characterized in that a right-turn vehicle caution notification is performed to call attention to a right-turn vehicle from an oncoming lane.

Further, the road information acquisition unit acquires signal display information indicating the display state of the time difference type traffic light installed at the specific intersection, and the notification unit obtains signal display information on the own lane side based on the signal display information. It was recognized that the time difference type traffic light on the opposite lane side of the own lane is switched to the progress stop display from the state where both the time difference type traffic light and the time difference type traffic light on the opposite lane side of the own lane are the progress permission display. Occasionally, the right-turning vehicle caution notification may be performed.

Further, the third aspect of the traffic information notification device of the present invention is a traffic information notification device used in a vehicle, in which the current position detection unit for detecting the current position of the vehicle and road information including the type of a traffic light are obtained. A staggered traffic light is installed for the vehicle based on the road information acquisition unit to be acquired, the current position of the vehicle detected by the current position detection unit, and the road information acquired by the road information acquisition unit. The specific intersection approach detection unit and the specific intersection approach detection unit that detect that the vehicle is traveling toward the specific intersection and the distance between the vehicle and the specific intersection is equal to or less than a predetermined distance. When it is detected that the vehicle is approaching the specific intersection, the vehicle is traveling in the own lane, and the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side both advance at the specific intersection. From the permission display, either the time difference type signal on the oncoming lane side is the priority lane that switches to the progress stop display first, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side are both from the progress permission display. A priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that first switches to the progress stop display, and a notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit. The intersection traveling direction estimation unit for estimating the traveling direction of the vehicle at the specific intersection is provided, and the notification unit is based on the recognition result by the priority lane recognition unit and the estimation result by the intersection traveling direction estimation unit. When the priority lane recognition unit recognizes that the own lane is the priority lane and the intersection traveling direction estimation unit estimates that the vehicle turns right at the specific intersection. The predetermined notification is characterized in that the signal on the oncoming lane side is notified that the progress permission display is first switched to the progress stop display.

Further, the fourth aspect of the traffic information notification device of the present invention is a traffic information notification device used in a vehicle, in which a current position detecting unit for detecting the current position of the vehicle and road information including a type of a signal are used. A staggered traffic light is installed for the vehicle based on the road information acquisition unit to be acquired, the current position of the vehicle detected by the current position detection unit, and the road information acquired by the road information acquisition unit. The specific intersection approach detection unit and the specific intersection approach detection unit that detect that the vehicle is traveling toward the specific intersection and the distance between the vehicle and the specific intersection is equal to or less than a predetermined distance. When it is detected that the vehicle is approaching the specific intersection, the vehicle is traveling in the own lane, and the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side both advance at the specific intersection. From the permission display, either the time difference type signal on the oncoming lane side is the priority lane that switches to the progress stop display first, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side are both from the progress permission display. A priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that first switches to the progress stop display, and a notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit. The road information acquisition unit includes an intersection travel direction estimation unit that estimates the travel direction of the vehicle at the specific intersection, and the road information acquisition unit acquires signal display information indicating the display state of the staggered signal installed at the specific intersection. Then, the notification unit performs the predetermined notification based on the recognition result by the priority lane recognition unit and the estimation result by the intersection traveling direction estimation unit, and the priority lane recognition unit causes the own lane to be the priority lane. When the vehicle is estimated to turn right at the specific intersection by the intersection traveling direction estimation unit, the time difference type signal on the own lane side and the self are based on the signal display information. When it is recognized that the time difference type signal on the opposite lane side of the lane is switched from the state in which the progress permission display is displayed to the time difference type signal on the opposite lane side of the own lane, the predetermined notification is given. , It is characterized by giving a right turn possible notification to urge a right turn.

A fifth aspect of the traffic information notification device of the present invention is a traffic information notification device used in a vehicle, in which a current position detecting unit for detecting the current position of the vehicle and road information including the type of a traffic light are used. A staggered traffic light is installed for the vehicle based on the road information acquisition unit to be acquired, the current position of the vehicle detected by the current position detection unit, and the road information acquired by the road information acquisition unit. The specific intersection approach detection unit and the specific intersection approach detection unit that detect that the vehicle is traveling toward the specific intersection and the distance between the vehicle and the specific intersection is equal to or less than a predetermined distance. When it is detected that the vehicle is approaching the specific intersection, the vehicle is traveling in the own lane, and the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side both advance at the specific intersection. From the permission display, either the time difference type signal on the oncoming lane side is the priority lane that switches to the progress stop display first, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side are both from the progress permission display. A priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that first switches to the progress stop display, and a notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit. The intersection traveling direction estimation unit for estimating the traveling direction of the vehicle at the specific intersection is provided, and the notification unit is based on the recognition result by the priority lane recognition unit and the estimation result by the intersection traveling direction estimation unit. When the priority lane recognition unit recognizes that the own lane is the non-priority lane and the intersection traveling direction estimation unit estimates that the vehicle turns right at the specific intersection. The predetermined notification is characterized in that the progress permission display of the traffic light on the oncoming lane side is extended.

Further, the sixth aspect of the traffic information notification device of the present invention is a traffic information notification device used in a vehicle, in which a current position detection unit for detecting the current position of the vehicle and road information including the type of a traffic light are acquired. A staggered traffic light is installed for the vehicle based on the road information acquisition unit, the current position of the vehicle detected by the current position detection unit, and the road information acquired by the road information acquisition unit. The specific intersection approach detection unit for detecting that the vehicle is traveling toward the specific intersection and the distance between the vehicle and the specific intersection is equal to or less than a predetermined distance, and the specific intersection approach detection unit are used to detect the approach to the specific intersection. When it is detected that the vehicle is approaching a specific intersection, the lane in which the vehicle is traveling is allowed to proceed at the specific intersection by both the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side. From the display, either the time difference type signal on the oncoming lane side is the priority lane in which the progress stop display is switched first, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side are both from the progress permission display. A priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that first switches to the progress stop display, a notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit, and the above. The road information acquisition unit includes an intersection travel direction estimation unit that estimates the travel direction of the vehicle at a specific intersection, and the road information acquisition unit acquires signal display information indicating the display state of the staggered signal installed at the specific intersection. The notification unit performs the predetermined notification based on the recognition result by the priority lane recognition unit and the estimation result by the intersection traveling direction estimation unit, and the priority lane recognition unit causes the own lane to be the non-priority lane. When the vehicle is estimated to turn right at the specific intersection by the intersection traveling direction estimation unit, the time difference type signal on the own lane side and the self are based on the signal display information. When it is recognized that the time difference type signal on the opposite lane side of the lane is switched from the state where the progress permission display is displayed to the time difference type signal on the own lane side, the time difference type signal on the own lane side is switched to the progress stop display. It is characterized by giving a right turn warning to alert straight-ahead vehicles in the oncoming lane.

Further, a route information acquisition unit for acquiring information on the planned travel route of the vehicle is provided, and the intersection travel direction estimation unit estimates the travel direction of the vehicle at the specific intersection based on the information on the planned travel route. It may be configured.

Further, the intersection traveling direction estimation unit determines at which of the traveling direction-specific lanes at the specific intersection the current position of the vehicle detected by the current position detecting unit belongs to the specific intersection. It may be configured to estimate the traveling direction of the vehicle.

Further, the road-to-vehicle communication unit for communicating with the road facility may be provided, and the road information acquisition unit may be configured to acquire the road information by communication with the road facility by the road-to-vehicle communication unit.

Next, the traffic information notification method of the present invention is a method executed by a traffic information notification device used in a vehicle, and the traffic information notification device includes a current position detection step for detecting the current position of the vehicle. , The road information acquisition step in which the traffic information notification device acquires road information including the type of signal, the current position of the vehicle detected by the traffic information notification device in the current position detection step, and the road information. Based on the road information acquired by the acquisition step, the vehicle travels toward a specific intersection in which a staggered signal is installed, and the distance between the vehicle and the specific intersection is specified to be less than or equal to a predetermined distance. When the specific intersection approach detection step that detects that the vehicle is approaching an intersection and the specific intersection approach detection step detects that the vehicle is approaching the specific intersection, the own lane in which the vehicle is traveling is described as described above. At a specific intersection, whether the time difference type signal on the own lane side and the time difference type signal on the oncoming lane are both priority lanes in which the progress permission display is switched to the time difference type signal on the oncoming lane side first and the progress stop display is displayed. Priority lane that recognizes whether the time difference type signal on the own lane side and the time difference type signal on the oncoming lane are both non-priority lanes in which the progress permission display is switched to the progress stop display first. The notification step includes a recognition step and a notification step for performing predetermined notification according to a recognition result by the priority lane recognition step , and the notification step recognizes that the own lane is the non-priority lane by the priority lane recognition step. At that time, the predetermined notification is characterized in that even after the signal on the own lane side is switched to the progress stop display, the progress permission display of the signal on the oncoming lane side continues .

According to the traffic information notification device and the traffic information notification method of the present invention, when a vehicle approaches an intersection in which a staggered signal is installed, the own lane is the priority lane (the traffic light on the oncoming lane side is displayed for permission to proceed first. It is recognized whether it is a non-priority lane (the traffic light on the own lane first switches from the progress permission display to the progress stop display). Then, by performing the notification according to the recognition result, it is possible to support the own vehicle to travel at the intersection while considering the situation of the other vehicle according to the specification of the time difference type signal. As a result, it is possible to prevent an obstacle from occurring between the own vehicle and another vehicle when traveling at an intersection.

Configuration diagram of the traffic information notification device. The first flowchart of the traffic information notification device. The second flowchart of the traffic information notification device. The third flowchart of the traffic information notification device. An explanatory diagram showing a vehicle traveling straight in the priority lane and a vehicle waiting for a right turn in a non-priority lane at an intersection where a staggered traffic light is installed. An explanatory diagram of a situation in which a vehicle traveling straight in the priority lane and a vehicle turning right from the non-priority lane approach each other at an intersection where a staggered traffic light is installed. An explanatory diagram of a situation where a vehicle in the priority lane is waiting for a right turn at an intersection where a staggered traffic light is installed. An explanatory diagram of a situation in which a traffic light on the non-priority lane side is switched from a green light display to a red light display while a vehicle in the priority lane is waiting for a right turn at an intersection where a staggered traffic light is installed.

An embodiment of the present invention will be described with reference to FIGS. 1 to 8.
[1. Configuration of traffic information notification device]
The configuration of the traffic information notification device in the present embodiment will be described with reference to FIG. 1. The traffic information notification device 10 of the present embodiment is configured as a part of a function of an in-vehicle device (including a navigation device 30, an audio device (not shown), etc. mounted on the vehicle 1 (own vehicle).

The traffic information notification device 10 is an electronic circuit unit composed of a CPU (Central Processing Unit) (not shown), a memory, various interface circuits, and the like. By executing the control program for the traffic information notification device 10 held in the memory, the CPU executes the current position detection unit 11, the road information acquisition unit 12, the specific intersection approach detection unit 13, the priority lane recognition unit 14, and the intersection progress. It functions as a direction estimation unit 15, a notification unit 16, and a route information acquisition unit 17.

Further, the current position detection step, the road information acquisition step, and the road information acquisition step in the traffic information notification method of the present invention are performed by the current position detection unit 11, the road information acquisition unit 12, the specific intersection approach detection unit 13, the priority lane recognition unit 14, and the notification unit 16. , A specific intersection approach detection step, a priority lane recognition step, and a notification step are executed, respectively.

The traffic information notification device 10 is connected to a touch panel 20, a microphone 21, a speaker 22, a navigation device 30, and a camera 26. The touch panel 20 is composed of a display 20b (liquid crystal panel or the like) and a touch switch 20a provided on the surface of the display 20b. The operation signal of the touch switch 20a is input to the traffic information notification device 10, and the display screen of the display 20b is changed by the control signal output from the traffic information notification device 10.

The navigation device 30 includes a GPS (Global Positioning System) unit 31 that detects the current position (latitude, longitude) of the vehicle 1, map data 32 that records map information, and a gyro sensor 33 that detects the angular velocity of the vehicle 1. ing. The navigation device 30 guides the driver of the vehicle 1 according to the set route (planned travel route) to the destination based on the detection signals of the GPS unit 31 and the gyro sensor 33 and the map data 32. I do. The navigation device 30 provides route guidance by displaying on the display 20b and outputting voice from the speaker 22.

Further, the sound detection signal by the microphone 21, the information on the current position of the vehicle 1 detected by the navigation device 30 (position information on the road where the vehicle 1 is located), and the image of the surroundings of the vehicle 1 captured by the camera 26. The data is input to the traffic information notification device 10.

The traffic information notification device 10 communicates with a vehicle ECU (Electronic Control Unit) provided in the vehicle 1 and also via an external communication unit 23 (including the function of the road-to-vehicle communication unit of the present invention). , Communicates with the roadside unit 51 (corresponding to the road facility of the present invention) installed in the traffic light 50 (road-to-vehicle communication). In the present embodiment, as shown in the traffic light 50, the progress permission display is performed by lighting the blue light source 50b (green signal display), the caution display is performed by lighting the yellow light source 50y (yellow signal display), and the progress stop display is performed. An example is an example of a traffic light in which the red light source 50r is lit (red signal display).

Further, the detection signals of the vehicle speed sensor 24 and the winker switch 25 provided in the vehicle 1 are input to the traffic information notification device 10. The vehicle speed sensor 24 detects the traveling speed of the vehicle 1. The winker switch 25 outputs a signal indicating the operation state (right turn or left turn) of the winker lever by the driver of the vehicle 1 to the traffic information notification device 10.

The current position detection unit 11 detects the current position of the vehicle 1 (current position on the map) from the current position information output from the navigation device 30. The road information acquisition unit 12 includes the current position of the vehicle 1 detected by the current position detection unit 11 and road information included in the map data 32 (type of traffic light installed on the road, priority lane and non-priority lane described later). Information on the road on which the vehicle 1 is traveling is acquired based on (including information such as the setting of).

The specific intersection approach detection unit 13 is based on the current position of the vehicle 1 detected by the current position detection unit 11 and the information on the road on which the vehicle 1 is traveling acquired by the road information acquisition unit 12. It is detected that the vehicle travels toward a specific intersection that is an intersection in which a time difference type traffic light is installed, and that the vehicle 1 and the specific intersection are in an approaching state where the distance between the vehicle 1 and the specific intersection is equal to or less than a predetermined distance.

When the specific intersection approach detection unit 13 detects that the vehicle 1 is in the specific intersection approach state, the priority lane recognition unit 14 acquires the current position of the vehicle 1 detected by the current position detection unit 11 and road information. Based on the information acquired by the unit 12, it recognizes whether the lane in which the vehicle 1 is traveling (own lane) is a priority lane or a non-priority lane at a specific intersection.

Here, the priority lane at a specific intersection means that, of the two lanes facing each other at the specific intersection, the traffic light in each lane is displayed in green light, and the traffic light in the oncoming lane is switched to red light first (green light). Display → Yellow traffic light display → Red traffic light display) It is a lane. The non-priority lane at a specific intersection is the lane in which the traffic light on the own lane is switched to the red light display first from the state where the traffic light of each lane is both green light display among the two lanes facing each other at the specific intersection. be.

Information on priority lanes and non-priority lanes at a specific intersection is recorded in the map data 32, and the road information acquisition unit 12 recognizes priority lanes and non-priority lanes at a specific intersection with reference to this information.

The route information acquisition unit 17 acquires information on the route to the destination set by the navigation device 30 by communicating with the navigation device 30. The intersection traveling direction estimation unit 15 estimates the traveling direction (straight, right turn, left turn) of the vehicle 1 at the specific intersection based on the route information to the destination acquired by the route information acquisition unit 17.

Further, the intersection traveling direction estimation unit 15 defines the traveling direction of the vehicle 1's own lane at the specific intersection according to the traveling direction (straight lane, right turn lane, etc.) from the road information acquired by the road information acquisition unit 12. When it is recognized that the vehicle is in the same lane, it is estimated that the traveling direction according to the traveling direction classification lane in which the vehicle 1 is located is the traveling direction of the vehicle 1 at the specific intersection.

When the vehicle 1 approaches the specific intersection and when the vehicle 1 passes through the specific intersection, the notification unit 16 gives a predetermined notification according to whether the own lane of the vehicle 1 is a priority lane or a non-priority lane. , The output of the voice guidance from the speaker 22 is performed.

[2. Notification of staggered traffic lights]
Next, according to the flowchart shown in FIGS. 2 to 4, the processing of notification regarding the staggered traffic light executed by the traffic information notification device 10 will be described.

Steps S1, S2, S6, and S9 of FIG. 2 are processes by the current position detection unit 11, the road information acquisition unit 12, and the specific intersection approach detection unit 13. In step S1, the specific intersection approach detection unit 13 determines whether or not the route guidance by the navigation device 30 is being executed (route guidance is in progress). Then, the specific intersection approach detection unit 13 proceeds to step S2 when the route is being guided, and proceeds to step S60 of FIG. 4 when the route is not being guided.

In step S2, the specific intersection approach detection unit 13 is based on the current position of the vehicle 1 detected by the current position detection unit 11 and the information on the road on which the vehicle 1 is traveling acquired by the road information acquisition unit 12. , The vehicle 1 is traveling toward an intersection (specific intersection) in which a time difference type traffic light is installed, and the distance between the vehicle 1 and the specific intersection is a predetermined distance (for example, 300 m) or less. Judge whether or not.

Then, when the specific intersection approach detection unit 13 determines that the specific intersection approach state is reached, the process proceeds to step S3. Step S3 is a process by the intersection traveling direction estimation unit 15, and the intersection traveling direction estimation unit 15 estimates whether or not the vehicle 1 goes straight on the specific intersection based on the set route.

When the intersection traveling direction estimation unit 15 estimates that the vehicle 1 will go straight on the specific intersection based on the estimation result, the process proceeds from the following steps S4 to S5. Further, when it is not estimated that the vehicle 1 goes straight on the specific intersection, the process proceeds from step S4 to step S15. Then, when it is estimated that the vehicle 1 turns right at the specific intersection, the intersection traveling direction estimation unit 15 proceeds from step S15 to step S30 in FIG. Further, when the vehicle 1 estimates that the vehicle 1 will turn left at the specific intersection, the intersection traveling direction estimation unit 15 proceeds to step S12, and in this case, the notification regarding the staggered traffic light is not performed.

Step S5 is a process by the notification unit 16. The notification unit 16 outputs, for example, voice guidance such as "It is a staggered signal about 300 m ahead. Please be careful." From the speaker 22. The next step S6 is a process by the specific intersection approach detection unit 13, and when the specific intersection approach detection unit 13 detects that the vehicle 1 has further approached the specific intersection, the process proceeds to step S7.

Step S7 is a process by the priority lane recognition unit 14. The priority lane recognition unit 14 determines whether the own lane of the vehicle 1 is the priority lane at the specific intersection based on the information of the road on which the vehicle 1 is traveling acquired by the road information acquisition unit 12 in step 7. Recognize whether it is a priority lane.

Then, when the priority lane recognition unit 14 recognizes that the own lane of the vehicle 1 is the priority lane at the specific intersection, the process proceeds to step S8 based on the recognition result, and the own lane of the vehicle 1 is not at the specific intersection. When it is recognized that the vehicle is in the priority lane, the process proceeds to step S12.

Subsequent step S8 is a process by the notification unit 16, and the notification unit 16 outputs, for example, a voice guidance such as "It will be a staggered signal soon" from the speaker 22. The next step S9 is a process by the specific intersection approach detection unit 13. When the specific intersection approach detection unit 13 detects that the vehicle 1 has entered the specific intersection, the process proceeds to step S10.

Step S10 is a process by the road information acquisition unit 12 and the notification unit 16. The road information acquisition unit 12 performs road-to-vehicle communication with the roadside unit of the staggered traffic light installed at a specific intersection via the external communication unit 23, and displays a signal indicating the display state of the traffic light on the oncoming lane side. Get information.

Then, when the notification unit 16 recognizes from the signal display information acquired by the road information acquisition unit 12 that the traffic light in the oncoming lane will soon become a yellow signal display (within a predetermined time), the processing is performed in step S11. Proceed. Step S11 is a process by the notification unit 16. The notification unit 16 outputs, for example, voice guidance (notice of right-turning vehicle attention) saying "Please be careful of vehicles turning right from the oncoming lane" from the speaker 22.

Next, with reference to FIG. 3, a notification process when the vehicle 1 turns right at a specific intersection during route guidance will be described. Step S30 in FIG. 3 is a process by the notification unit 16. In step S30, the notification unit 16 outputs voice guidance from the speaker 22, for example, "Approximately 300 m ahead, to the right. This intersection is a staggered signal. Please be careful."

Subsequent step S31 is a process by the specific intersection approach detection unit 13. When the specific intersection approach detection unit 13 detects that the vehicle 1 has further approached the specific intersection (for example, within 100 m) based on the current position of the vehicle 1 detected by the current position detection unit 11, the step is taken. Proceed to S32.

Step S32 is a process by the priority lane recognition unit 14. The priority lane recognition unit 14 recognizes whether the own lane of the vehicle 1 is a priority lane or a non-priority lane at a specific intersection. Then, when the priority lane recognition unit 14 recognizes that it is a priority lane, the process proceeds to step S33, and when it recognizes that it is a non-priority lane, the process proceeds to step S50.

Step S33 is a process by the notification unit 16. In step S33, the notification unit 16 outputs a voice guidance from the speaker 22, for example, "Soon, it is a staggered signal. At this intersection, the signal in the oncoming lane turns red first."

Subsequent step S34 is a process by the specific intersection approach detection unit 13. When the specific intersection approach detection unit 13 detects that the vehicle 1 has entered the specific intersection, the process proceeds to step S35. Step S35 is a process by the notification unit 16. The notification unit 1 outputs, for example, voice guidance such as "This signal is on the right" from the speaker 22.

The next step S36 is a process by the road information acquisition unit 12 and the notification unit 16. The road information acquisition unit 12 performs road-to-vehicle communication with the roadside unit of the staggered traffic light installed at a specific intersection via the external communication unit 23, and acquires the signal display information of the traffic light on the oncoming lane side. ..

Then, when the notification unit 16 recognizes from the signal display information of the traffic light on the oncoming lane side acquired by the road information acquisition unit 12, the traffic light on the oncoming lane side will soon (within a predetermined time) a yellow signal display. , Step S37. Step S37 is a process by the notification unit 16. The notification unit 16 outputs voice guidance (notification that a right turn is possible) such as "Only the signal in the oncoming lane turns red. You can turn right." From the speaker 22.

Next, the processes of steps S50 to S54, which are the processes when the own lane of the vehicle 1 is recognized as the non-priority lane in step S33, will be described. Step S50 is a process by the notification unit 16. In step S50, the notification unit 16 gives voice guidance (notification that the traffic light in the oncoming lane continues to display the green signal, for example, "It is a staggered signal soon. This intersection will extend the blue signal in the oncoming lane." ) Is output from the speaker 22.

Subsequent step S51 is a process by the specific intersection approach detection unit 13. When the specific intersection approach detection unit 13 detects that the vehicle 1 has entered the specific intersection, the process proceeds to step S52. Step S52 is a process by the notification unit 16. The notification unit 16 outputs, for example, voice guidance such as "This signal is on the right" from the speaker 22.

The next step S53 is a process by the road information acquisition unit 12 and the notification unit 16. The road information acquisition unit 12 performs road-to-vehicle communication with the roadside unit of the staggered traffic light installed at a specific intersection via the external communication unit 23, and acquires the signal display information of the traffic light on the oncoming lane side. ..

Then, when the notification unit 16 recognizes from the signal display information of the traffic light on the oncoming lane side acquired by the road information acquisition unit 12, the traffic light on the oncoming lane side will soon (within a predetermined time) a yellow signal display. , Step S54. Step S54 is a process by the notification unit 16. The notification unit 16 outputs voice guidance (right turn caution notification) from the speaker 22, for example, "The signal in the oncoming lane remains blue. Please be careful of vehicles traveling straight when turning right."

Next, the processes of steps S60 to S65 and steps S70 to S73 of FIG. 4, which are the processes when it is determined in step S1 of FIG. 2 that the route is not being guided, will be described.

Step S60 in FIG. 4 is a process by the specific intersection approach detection unit 13. The specific intersection approach detection unit 13 is based on the current position of the vehicle 1 detected by the current position detection unit 11 and the information on the road on which the vehicle 1 is traveling acquired by the road information acquisition unit 12. When it is detected that the vehicle is in an approaching state, the process proceeds to step S61.

Step S61 is a process by the priority lane recognition unit 14. The priority lane recognition unit 14 recognizes whether the lane in which the vehicle 1 is traveling (own lane) is a priority lane or a non-priority lane at a specific intersection. Then, the priority lane recognition unit 14 proceeds to step S62 when the own lane is the priority lane, and proceeds to step S70 when the own lane is the non-priority lane.

Step S62 is a process by the notification unit 16. The notification unit 16 outputs voice guidance from the speaker 22, for example, "The next intersection is a staggered signal. The signal in the oncoming lane turns red first." Subsequent step S63 is a process by the intersection traveling direction estimation unit 15. The intersection traveling direction estimation unit 15 estimates that the vehicle 1 is waiting for a right turn when the current position of the vehicle 1 detected by the current position detection unit 11 is the right turn lane, and proceeds to the process in step S64. On the other hand, when it is estimated that the vehicle 1 is not waiting for a right turn, the intersection traveling direction estimation unit 15 proceeds to step S66 (end of notification processing).

The next step S64 is a process by the road information acquisition unit 12 and the notification unit 16. The road information acquisition unit 12 performs road-to-vehicle communication with the roadside unit of the staggered traffic light installed at a specific intersection via the external communication unit 23, and acquires the signal display information of the traffic light on the oncoming lane side. ..

Then, when the notification unit 16 recognizes from the signal display information acquired by the road information acquisition unit 12 that the traffic light on the oncoming lane side will soon (within a predetermined time) a yellow signal display, the processing is performed in step S65. Proceed. Step S65 is a process by the notification unit 16. The notification unit 16 outputs voice guidance (notification that a right turn is possible) from the speaker 22, for example, "Only the signal in the oncoming lane has turned red. You can turn right."

Next, step S70 is a process by the notification unit 16. The notification unit 16 outputs voice guidance from the speaker 22, for example, "The next intersection is a staggered signal. The green signal in the oncoming lane is extended."

Subsequent step S71 is a process by the intersection traveling direction estimation unit 15. When the current position of the vehicle 1 detected by the current position detection unit 11 is the right turn lane, the intersection traveling direction estimation unit 15 estimates that the vehicle 1 is in the right turn standby state and proceeds to the process in step S72. On the other hand, when it is estimated that the vehicle 1 is not waiting for a right turn, the intersection traveling direction estimation unit 15 proceeds to step S66 (end of notification processing).

The next step S72 is a process by the road information acquisition unit 12 and the notification unit 16. The road information acquisition unit 12 performs road-to-vehicle communication with the roadside unit of the staggered traffic light installed at a specific intersection via the external communication unit 23, and acquires the signal display information of the traffic light on the oncoming lane side. ..

Then, when the notification unit 16 recognizes from the signal display information acquired by the road information acquisition unit 12 that the traffic light on the oncoming lane side will soon (within a predetermined time) a yellow signal display, the processing is performed in step S73. Proceed. Step S73 is a process by the notification unit 16. The notification unit 16 outputs voice guidance (right turn caution notification) from the speaker 22, for example, "The signal in the oncoming lane remains blue. Please be careful of vehicles traveling straight when turning right."

[3. Effect of notification when own vehicle goes straight in the priority lane]
The effect of performing the processing according to the flowchart of FIGS. 2 to 4 described above to notify the specific intersection where the staggered traffic light is installed will be described with reference to FIGS. 5 to 8.

First, with reference to FIGS. 5 and 6, the effect of notification when the vehicle 1 (own vehicle) goes straight on the priority lane at a specific intersection in which a time difference type traffic light is installed will be described. In FIGS. 5 and 6, 61 to 64 are staggered traffic lights, and the blue light source is indicated by the reference numeral b, the yellow light source is indicated by the reference numeral y, and the red light source is indicated by the reference numeral r. There is. For example, the staggered traffic light 61 includes a blue light source 61b, a yellow light source 61y, and a red light source 61r.

Further, the lighting state of the blue light source is indicated by a plurality of concentric circle displays (see the blue light source 61b of the staggered traffic light 61), and the lighting state of the yellow light source is indicated by a grid line display (the yellow light source of the staggered traffic light 63 in FIG. 6). (Refer to 63y), the lighting state of the red light source is indicated by a parallel line display (see the red light source 62r of the time difference type traffic light 62). Each time difference type traffic light 61 to 64 is controlled so that only one of the blue light source, the yellow light source, and the red light source is lit, and in the following, the state in which only the blue light source is lit is displayed as a green signal (progress permission display). ), The state where only the yellow light source is lit is called the yellow signal display (caution display), and the state where only the red light source is lit is called the red signal display (progress stop display).

5 and 6 describe a case where the vehicle 1 travels on a road in the vertical direction of a specific intersection, in which the lane L1 is set as the priority lane and the lane L2 is set as the non-priority lane. That is, the time difference type traffic light 61 and the time difference type traffic light 63 are both set to switch from the state where the green signal display is displayed (the state shown in FIG. 5) to the red signal display via the yellow signal display first.

In FIG. 5, it is assumed that C1 is the own vehicle 1, C1 goes straight on the priority lane L1 at the specific intersection, and the oncoming vehicle C2 turns right from the non-priority lane L2 at the specific intersection. In this situation, C1 goes straight at a specific intersection according to the green light display of the staggered traffic light 61 in the own lane. On the other hand, the oncoming vehicle C2 is stopped after waiting for the oncoming vehicle to be interrupted (waiting for a right turn).

Then, as shown in FIG. 6, when the time difference type traffic light 63 on the non-priority lane L2 side first switches from the green light display to the yellow light display, the driver of the oncoming vehicle C2 identifies that the time difference type traffic light is installed. If you do not recognize that it is an intersection, the following problems may occur.

That is, the driver of the oncoming vehicle C2 erroneously recognizes that when the traffic light 63 on the non-priority lane L2 side switches from the green signal display to the yellow signal display, the traffic light 61 on the priority lane L1 side also switches to the yellow signal display at the same timing. Then, assuming that the vehicle C1 will stop, the vehicle starts turning right. However, in reality, the traffic light 61 on the priority lane L1 side still displays a green light.

Therefore, the vehicle C1 may go straight through the specific intersection without stopping and may come into contact with the vehicle C2 that has turned right from the non-priority lane L2. Therefore, in the vehicle C1 (own vehicle 1), when the traffic information notification device 10 is in the process of route guidance, please note that in step S5 of FIG. 2 described above, for example, "a staggered signal about 300 m ahead." "Voice guidance is given. Further, the traffic information notification device 10 gives voice guidance in step S8, for example, "It will be a time difference area signal soon."

Further, the traffic information notification device 10 provides voice guidance in step S11 of FIG. 2, based on the fact that the own lane is the priority lane, for example, "Please be careful of vehicles turning right from the oncoming lane." By the notification by these voice guidances, the driver of the vehicle C1 can be alerted to the right-turning vehicle from the oncoming lane, and the contact between the vehicle C1 and the right-turning vehicle C2 can be prevented.

Further, even when the route is not being guided, in the vehicle C1 (own vehicle 1), the traffic information notification device 10 is described in step S62 of FIG. 4 described above, for example, "The next intersection is a staggered signal. Will turn red first. " By the notification by this voice guidance, the driver of the vehicle C1 is in the oncoming lane based on the fact that the vehicle 1 is approaching the intersection where the staggered traffic light is installed and that the vehicle lane is the priority lane. It is possible to recognize that the traffic light of is turned red first. Then, the driver of the vehicle C1 can be alerted to the right-turning vehicle from the oncoming lane, and the contact between the vehicle C1 and the oncoming vehicle C2 can be prevented.

[4. Effect of notification when own vehicle turns right from non-priority lane]
Next, with reference to FIGS. 5 and 6, the effect of notification when the vehicle 1 (own vehicle) turns right from the non-priority lane L2 at a specific intersection in which a time difference type traffic light is installed will be described.

In FIG. 5, it is assumed that the vehicle C2 is the own vehicle 1 and the vehicle C2 enters the specific intersection from the non-priority lane L2 and turns right at the specific intersection. In this situation, the traffic light 63 on the non-priority lane L2 side, which is the own lane of the vehicle C2, is displayed as a green light, but the vehicle C2 is stopped because the flow of the vehicle on the priority lane L1 side, which is the oncoming lane, is not interrupted. (Waiting for a right turn).

Then, as shown in FIG. 6, when the traffic light 63 on the non-priority lane L2 side first turns to the yellow traffic light, the driver of the vehicle C2 recognizes that it is a specific intersection where the staggered traffic light is installed. If not, the above [3. As explained in [Effect of notification when going straight in the priority lane], there is a possibility that the vehicle C2 that has started to turn right and the straight vehicle C1 come into contact with each other.

Therefore, in the vehicle C2 (own vehicle 1), when the traffic information notification device 10 is in the process of route guidance, in step S50 of FIG. The blue color will be extended. " Further, the traffic information notification device 10 is based on the fact that the own lane is a non-priority lane in step S54 of FIG. Please give a voice guidance saying "Please."

By notifying the driver of the vehicle C2 by these voice guidances, the straight-ahead vehicle is made aware that the intersection to be turned right is a specific intersection and it is necessary to pay attention to the straight-ahead vehicle C1 in the priority lane L1. Contact with C1 can be prevented.

Further, even when the route is not being guided, in the vehicle C2 (own vehicle 1), the traffic information notification device 10 is based on the fact that the own lane is a non-priority lane in step S70 of FIG. The intersection is a staggered signal. The green light in the oncoming lane will be extended. "

Further, the traffic information notification device 10 gives voice guidance in step S73 of FIG. 4, for example, "The signal in the oncoming lane remains blue. Please be careful of vehicles traveling straight when turning right." By notifying the driver of the vehicle C2 by these voice guidances, the driver of the vehicle C2 is made aware that the intersection to be turned right is a specific intersection and it is necessary to pay attention to the oncoming vehicle C1 traveling straight in the priority lane L1. It is possible to prevent contact with the straight-ahead vehicle C1.

[5. Effect of notification when own vehicle turns right from the priority lane]
Next, with reference to FIGS. 7 and 8, the effect of the vehicle 1 (own vehicle) turning right from the priority lane at the specific intersection where the staggered traffic light is installed will be described.

In FIG. 7, it is assumed that the vehicle C1 is the own vehicle 1 and the vehicle C1 enters the specific intersection from the priority lane L1 and turns right at the specific intersection. In this situation, the traffic light 61 on the priority lane L1 side, which is the own lane of the vehicle C1, has a green light display, but the traffic light 63 on the non-priority lane L2 side, which is the oncoming lane, also has a green light display, and the non-priority lane L2. Vehicle C1 is stopped (waiting for a right turn) because the flow of the vehicle is not interrupted.

Then, as shown in FIG. 8, when the traffic light 63 on the non-priority lane L2 side first switches from the green signal display to the red signal display via the yellow signal display, the driver of the vehicle C1 is installed with the staggered traffic light. When it is not recognized that the vehicle is waiting for a right turn in the priority lane of the specific intersection, the traffic light 63 on the non-priority lane L2 side is also erroneously recognized as still displaying the green light.

Then, due to this misrecognition, the driver of the vehicle C1 did not start the right turn even though the vehicle C1 was actually switched to the situation where the vehicle C1 could turn right, and as a result, the following vehicle C3 honked the horn. Problems such as confusion for the driver of the vehicle C1 may occur.

Therefore, in the vehicle C1 (own vehicle 1), when the traffic information notification device 10 approaches a specific intersection in step S30 of FIG. 3 described above when the route is being guided, for example, "This intersection is a time difference type. This is a signal. Please be careful. " Further, when the traffic information notification device 10 is further approached to a specific intersection, in step S33, for example, a voice guidance saying, "Soon, it is a staggered signal. At this intersection, the signal in the oncoming lane turns red first." I do.

Further, when the vehicle C1 enters the specific intersection, the traffic information notification device 10 gives voice guidance in step S37, for example, "Only the signal in the oncoming lane has turned red. You can turn right."

With these voice guidances, the driver of vehicle C1 is made to recognize that the intersection to be turned right is the intersection where the staggered signal is installed, and the traffic light on the non-priority lane L2 side of the oncoming lane is displayed as a red light. When you switch, you can promptly make a right turn. As a result, it is possible to prevent the timing of the right turn from being delayed.

Further, even when the route is not being guided, in the vehicle C1 (own vehicle 1), the traffic information notification device 10 is described in step S62 of FIG. 4 described above, for example, "The next intersection is a staggered signal. Will turn red first. " Further, the traffic information notification device 10 gives voice guidance in step S65, for example, when the signal in the oncoming lane turns yellow soon, for example, "Only the signal in the oncoming lane has turned red. You can turn right."

With these voice guidances, the driver of vehicle C1 is made to recognize that the intersection to be turned right is the intersection where the time difference type traffic light is installed, and the traffic light on the non-priority lane L2 side of the oncoming lane is displayed as a red light. When you switch, you can promptly make a right turn. As a result, it is possible to prevent the timing of the right turn from being delayed.

[6. Other embodiments]
In the above embodiment, the current position detection unit 11 detects the current position of the vehicle 1 based on the position detection signal by the GPS unit 31 output from the navigation device 30, the map data 32, and the detection signal of the gyro sensor 33. .. As another configuration for detecting the current position of the vehicle 1, for example, by acquiring information on the installation location of the roadside unit 51 by road-to-vehicle communication with the roadside unit 51 via an external communication unit 23, the vehicle 1 You may detect the current position of.

Further, as another configuration for estimating the traveling direction of the vehicle 1 by the intersection traveling direction estimation unit 15, for example, the traveling direction of the vehicle 1 at the specific intersection is determined based on the operating state of the winker lever detected by the winker switch 25. The estimation configuration may be adopted. Alternatively, by analyzing the image captured in front of the vehicle 1 by the camera 26 and recognizing the division of the lane in which the vehicle 1 is traveling (right turn lane, straight lane, left turn lane, etc.), the vehicle 1 at a specific intersection It may be configured to estimate the traveling direction.

Further, although the notification unit 16 outputs the voice guidance from the speaker 22 to perform the predetermined notification of the present invention, the notification unit 16 may perform the predetermined notification by displaying on the display 20b, or the notification by the voice guidance and the display 20b. May also be notified by. Further, a vibrator may be provided in the driver's seat of the vehicle 1 and a predetermined notification may be performed by the operation of the vibrator, and the predetermined notification by the vibrator and the predetermined notification by the voice guidance or the display of the display 20b may be combined. May be good.

In the above embodiment, the traffic information notification device 10 is configured as a part of the function of the in-vehicle device mounted on the vehicle, but the function of the portable navigation device or the communication terminal such as a smartphone to be brought into the vehicle and used. It may be configured as part.

Further, in the above embodiment, the driver of the vehicle 1 is notified by voice guidance when traveling at the intersection where the time difference type traffic light is installed, but the vehicle 1 is an automatically traveling vehicle (operator of the driver). The present invention can also be applied to a vehicle that travels independently regardless of the vehicle). When the vehicle 1 is an autonomous vehicle, the vehicle ECU 2 of the vehicle 1 is notified about a specific intersection in which a time difference type traffic light is installed.

For example, when the vehicle C1 in FIG. 5 is the own vehicle 1 and the vehicle C1 goes straight through a specific intersection, and the vehicle C1 is an autonomous vehicle, the notification unit 16 makes a "right turn from the oncoming lane" to the vehicle ECU 2. Notify that "Be careful of the vehicle" (output a notification signal). Upon receiving this notification signal, the vehicle ECU 2 recognizes the presence or absence of a right-turning vehicle from the oncoming lane by using an image captured by the camera 26 or an object detection signal by a radar (not shown) provided in the vehicle 1 in the specific intersection. Automatically drive.

Note that FIG. 1 is a schematic diagram showing the functional configurations of the traffic information notification device 10 classified according to the main processing contents in order to make the invention of the present application easy to understand, and the configuration of the traffic information notification device 10 is shown. , It is also possible to classify into more components according to the processing content. It can also be categorized so that one component performs more processing. Further, the processing of each component may be executed by one hardware or may be executed by a plurality of hardware. Further, the processing of each component may be realized by one program or may be realized by a plurality of programs.

Further, in the traffic information notification device 10 shown in FIG. 1, the program executed by the CPU is downloaded from an external server via, for example, an external communication unit 23 and a communication network, and then loaded into a memory such as a RAM. It may be executed by the CPU. Further, it may be directly loaded from an external server onto a memory such as RAM via the external communication unit 23 and the network, and may be executed by the CPU. Alternatively, the storage medium connected to the traffic information notification device 10 may be loaded onto a memory such as a RAM.

Further, the processing units of the flowcharts shown in FIGS. 2 to 4 are divided according to the main processing contents in order to facilitate understanding of the processing by the traffic information notification device 10. The invention of the present application is not limited by the method and name of division of the processing unit. The processing of the traffic information notification device 10 can be further divided into more processing units according to the processing content. It is also possible to divide one processing unit so as to include more processing. Further, as long as the same processing result can be obtained, the processing order of each of the above flowcharts is not limited to the illustrated example.

1 Vehicle (own vehicle)
10 Traffic information notification device 11 Current position detection unit 12 Road information acquisition unit 13 Specific intersection approach detection unit 14 Priority lane recognition unit 15 Intersection travel direction estimation unit 16 Notification unit 20 Touch panel 20a Touch switch 20b Display 21 Mike 22 Speaker 23 External communication Unit 24 Vehicle speed sensor 25 Winker switch 26 Camera 30 Navigation device 31 GPS unit 32 Map data 33 Gyro sensor 50 Staggered traffic light 51 Roadside traffic light 61-64 Staggered traffic light L1 Priority lane L2 Non-priority lane C1-C3 Vehicle

Claims (12)

A traffic information notification device used in vehicles.
The current position detection unit that detects the current position of the vehicle and
The Road Information Acquisition Department, which acquires road information including the types of traffic lights,
Based on the current position of the vehicle detected by the current position detection unit and the road information acquired by the road information acquisition unit, the vehicle travels toward a specific intersection where a staggered traffic light is installed. In addition, a specific intersection approach detection unit that detects that the distance between the vehicle and the specific intersection is a predetermined distance or less and is in a specific intersection approach state.
When the specific intersection approach detection unit detects that the specific intersection is approaching, the own lane in which the vehicle is traveling is at the specific intersection, the time difference type signal on the own lane side and the oncoming lane side. The time difference type signal of both is the priority lane in which the time difference type signal on the oncoming lane side is switched to the progress stop display first from the progress permission display, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side. Both have a priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that switches to the progress stop display first from the progress permission display.
It is provided with a notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit.
When the priority lane recognition unit recognizes that the own lane is the non-priority lane, the notification unit receives the oncoming lane even after the signal on the own lane side is switched to the progress stop display as the predetermined notification. A traffic information notification device characterized in that it notifies that the progress permission display of the signal on the side is continued. When the priority lane recognition unit recognizes that the own lane is the priority lane, the notification unit first switches the oncoming lane side signal from the progress permission display to the progress stop display as the predetermined notification. The traffic information notification device according to claim 1 , wherein the traffic information is notified. A traffic information notification device used in vehicles.
The current position detection unit that detects the current position of the vehicle and
The Road Information Acquisition Department, which acquires road information including the types of traffic lights,
Based on the current position of the vehicle detected by the current position detection unit and the road information acquired by the road information acquisition unit, the vehicle travels toward a specific intersection where a staggered traffic light is installed. In addition, a specific intersection approach detection unit that detects that the distance between the vehicle and the specific intersection is a predetermined distance or less and is in a specific intersection approach state.
When the specific intersection approach detection unit detects that the specific intersection is approaching, the own lane in which the vehicle is traveling is at the specific intersection, the time difference type signal on the own lane side and the oncoming lane side. The time difference type signal of both is the priority lane in which the time difference type signal on the oncoming lane side is switched to the progress stop display first from the progress permission display, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side. Both have a priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that switches to the progress stop display first from the progress permission display.
A notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit , and
An intersection traveling direction estimation unit for estimating the traveling direction of the vehicle at the specific intersection is provided.
The notification unit performs the predetermined notification based on the recognition result by the priority lane recognition unit and the estimation result by the intersection traveling direction estimation unit, and the own lane is the priority lane by the priority lane recognition unit. When it is estimated by the intersection traveling direction estimation unit that the vehicle goes straight on the specific intersection, the right-turning vehicle caution notification for calling attention to the right-turning vehicle from the oncoming lane is performed as the predetermined notification. A traffic information notification device characterized by this. The road information acquisition unit acquires signal display information indicating the display state of the staggered traffic light installed at the specific intersection.
Based on the signal display information, the notification unit is in a state where both the time difference type traffic light on the own lane side and the time difference type traffic light on the opposite lane side of the own lane are in progress permission display, and the notification unit is in the own lane. The traffic information notification device according to claim 3 , wherein when it recognizes that the time difference type traffic light on the oncoming lane side switches to the progress stop display, the right turn vehicle caution notification is given. A traffic information notification device used in vehicles.
The current position detection unit that detects the current position of the vehicle and
The Road Information Acquisition Department, which acquires road information including the types of traffic lights,
Based on the current position of the vehicle detected by the current position detection unit and the road information acquired by the road information acquisition unit, the vehicle travels toward a specific intersection where a staggered traffic light is installed. In addition, a specific intersection approach detection unit that detects that the distance between the vehicle and the specific intersection is a predetermined distance or less and is in a specific intersection approach state.
When the specific intersection approach detection unit detects that the specific intersection is approaching, the own lane in which the vehicle is traveling is at the specific intersection, the time difference type signal on the own lane side and the oncoming lane side. The time difference type signal of both is the priority lane in which the time difference type signal on the oncoming lane side is switched to the progress stop display first from the progress permission display, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side. Both have a priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that switches to the progress stop display first from the progress permission display.
A notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit , and
An intersection traveling direction estimation unit for estimating the traveling direction of the vehicle at the specific intersection is provided.
The notification unit performs the predetermined notification based on the recognition result by the priority lane recognition unit and the estimation result by the intersection traveling direction estimation unit, and the own lane is the priority lane by the priority lane recognition unit. When the vehicle is estimated to turn right at the specific intersection by the intersection traveling direction estimation unit, the traffic light on the oncoming lane side first switches from the traveling permission display to the traveling stop display as the predetermined notification. A traffic information notification device characterized by notifying that. A traffic information notification device used in vehicles.
The current position detection unit that detects the current position of the vehicle and
The Road Information Acquisition Department, which acquires road information including the types of traffic lights,
Based on the current position of the vehicle detected by the current position detection unit and the road information acquired by the road information acquisition unit, the vehicle travels toward a specific intersection where a staggered traffic light is installed. In addition, a specific intersection approach detection unit that detects that the distance between the vehicle and the specific intersection is a predetermined distance or less and is in a specific intersection approach state.
When the specific intersection approach detection unit detects that the specific intersection is approaching, the own lane in which the vehicle is traveling is at the specific intersection, the time difference type signal on the own lane side and the oncoming lane side. The time difference type signal of both is the priority lane in which the time difference type signal on the oncoming lane side is switched to the progress stop display first from the progress permission display, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side. Both have a priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that switches to the progress stop display first from the progress permission display.
A notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit , and
An intersection traveling direction estimation unit for estimating the traveling direction of the vehicle at the specific intersection is provided.
The road information acquisition unit acquires signal display information indicating the display state of the staggered traffic light installed at the specific intersection.
The notification unit performs the predetermined notification based on the recognition result by the priority lane recognition unit and the estimation result by the intersection traveling direction estimation unit, and the own lane is the priority lane by the priority lane recognition unit. And when it is estimated by the intersection traveling direction estimation unit that the vehicle turns right at the specific intersection, based on the signal display information, the time difference type signal on the own lane side and the own lane When it is recognized that the time difference type signal on the opposite lane side of the own lane is switched to the progress stop display from the state where both the time difference type signal on the oncoming lane side is the progress permission display, turn right as the predetermined notification. A traffic information notification device characterized by providing notification that a right turn is possible. A traffic information notification device used in vehicles.
The current position detection unit that detects the current position of the vehicle and
The Road Information Acquisition Department, which acquires road information including the types of traffic lights,
Based on the current position of the vehicle detected by the current position detection unit and the road information acquired by the road information acquisition unit, the vehicle travels toward a specific intersection where a staggered traffic light is installed. In addition, a specific intersection approach detection unit that detects that the distance between the vehicle and the specific intersection is a predetermined distance or less and is in a specific intersection approach state.
When the specific intersection approach detection unit detects that the specific intersection is approaching, the own lane in which the vehicle is traveling is at the specific intersection, the time difference type signal on the own lane side and the oncoming lane side. The time difference type signal of both is the priority lane in which the time difference type signal on the oncoming lane side is switched to the progress stop display first from the progress permission display, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side. Both have a priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that switches to the progress stop display first from the progress permission display.
A notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit , and
An intersection traveling direction estimation unit for estimating the traveling direction of the vehicle at the specific intersection is provided.
The notification unit performs the predetermined notification based on the recognition result by the priority lane recognition unit and the estimation result by the intersection traveling direction estimation unit, and the priority lane recognition unit changes the own lane to the non-priority lane. When it is recognized that there is, and it is estimated by the intersection traveling direction estimation unit that the vehicle turns right at the specific intersection, the advance notification of the traffic light on the oncoming lane side is extended as the predetermined notification. A traffic information notification device characterized by doing so. A traffic information notification device used in vehicles.
The current position detection unit that detects the current position of the vehicle and
The Road Information Acquisition Department, which acquires road information including the types of traffic lights,
Based on the current position of the vehicle detected by the current position detection unit and the road information acquired by the road information acquisition unit, the vehicle travels toward a specific intersection where a staggered traffic light is installed. In addition, a specific intersection approach detection unit that detects that the distance between the vehicle and the specific intersection is a predetermined distance or less and is in a specific intersection approach state.
When the specific intersection approach detection unit detects that the specific intersection is approaching, the own lane in which the vehicle is traveling is at the specific intersection, the time difference type signal on the own lane side and the oncoming lane side. The time difference type signal of both is the priority lane in which the time difference type signal on the oncoming lane side is switched to the progress stop display first from the progress permission display, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side. Both have a priority lane recognition unit that recognizes whether the time difference type signal on the own lane side is a non-priority lane that switches to the progress stop display first from the progress permission display.
A notification unit that performs predetermined notification according to the recognition result by the priority lane recognition unit , and
An intersection traveling direction estimation unit for estimating the traveling direction of the vehicle at the specific intersection is provided.
The road information acquisition unit acquires signal display information indicating the display state of the staggered traffic light installed at the specific intersection.
The notification unit performs the predetermined notification based on the recognition result by the priority lane recognition unit and the estimation result by the intersection traveling direction estimation unit, and the priority lane recognition unit changes the own lane to the non-priority lane. When it is recognized that there is, and the vehicle is estimated to turn right at the specific intersection by the intersection traveling direction estimation unit, the time difference type traffic light on the own lane side and the own lane are based on the signal display information. When it is recognized that the time difference type traffic light on the oncoming lane side is switched from the state where the progress permission display is displayed to the progress stop display on the own lane side, the predetermined notification is when turning right. A traffic information notification device characterized by providing a right turn warning to alert a straight-ahead vehicle in the oncoming lane. It is equipped with a route information acquisition unit that acquires information on the planned travel route of the vehicle.
The intersection traveling direction estimating portion, based on the information of the scheduled travel route according to any one of claims 8 from claim 3, wherein estimating the traveling direction of the vehicle at the specific intersection Traffic information notification device. The intersection traveling direction estimation unit determines whether the current position of the vehicle detected by the current position detecting unit belongs to any of the traveling direction-specific lanes at the specific intersection, thereby determining which vehicle belongs to the vehicle at the specific intersection. The traffic information notification device according to any one of claims 3 to 9 , wherein the traveling direction of the vehicle is estimated. Equipped with a road-to-vehicle communication unit that communicates with road facilities
The traffic information according to any one of claims 1 to 10 , wherein the road information acquisition unit acquires the road information by communication with the road facility by the road-to-vehicle communication unit. Notification device. A method performed by a traffic information information device used in a vehicle.
The current position detection step in which the traffic information notification device detects the current position of the vehicle, and
The road information acquisition step in which the traffic information notification device acquires road information including the type of traffic light, and
The vehicle is installed with a staggered traffic light based on the current position of the vehicle detected by the current position detection step and the road information acquired by the road information acquisition step. A specific intersection approach detection step for detecting that the vehicle is traveling toward a specific intersection and the distance between the vehicle and the specific intersection is equal to or less than a predetermined distance.
When it is detected by the specific intersection approach detection step that the specific intersection is approaching, the own lane in which the vehicle is traveling is the time difference type signal on the own lane side and the oncoming lane side at the specific intersection. The time difference type signal of both is the priority lane in which the time difference type signal on the oncoming lane side is switched to the progress stop display first from the progress permission display, or the time difference type signal on the own lane side and the time difference type signal on the oncoming lane side. Both have a priority lane recognition step that recognizes whether the time difference type signal on the own lane side is a non-priority lane that first switches to the progress stop display from the progress permission display.
Including a notification step of performing predetermined notification according to a recognition result by the priority lane recognition step.
In the notification step, when the own lane is recognized as the non-priority lane by the priority lane recognition step, the oncoming lane is displayed even after the signal on the own lane side is switched to the progress stop display as the predetermined notification. A traffic information notification method characterized by notifying that the progress permission display of the signal on the side is continued.

Images