JP2002269687A - Safe running support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe running support device capable of providing not only the information indicating the presence or absence of an obstacle but also the information by an information board while taking a situation occurring in an accompanying manner after the obstacle occurs into account. SOLUTION: A road for an automobile is provided with the information board for displaying a traffic situation in a curve section making it impossible for a driver to see far ahead in a section on the upstream side in the section making it impossible for the driver to see far ahead, a sensor head provided to monitor the traffic situation in the curve section making it impossible for the driver to see far ahead, a sensor head output processing device for processing an output of the sensor head, and a road side processing device having a function for performing computation for displaying the existence of a decelerating vehicle in front of an accident vehicle when the accident vehicle occurs in the part making it impossible for the driver to see far ahead on the information board based on the results of computation of a computing means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safe driving support device as roadside (infrastructure) equipment when a vehicle runs on a road.

[0002]

2. Description of the Related Art In order to support the safe driving of vehicles traveling on a road, an information board (display board) is installed on the side of a road or directly above a road lane, and information provided to a driver is displayed as necessary. Has been adopted. In particular, if an obstacle (an accident vehicle, a falling object, etc.) occurs on the road, information boards such as "There is an obstacle ahead" are displayed on the information board to prevent collision with the obstacle. Means of displaying information have been taken.

[0003]

However, there is the following problem in providing information only with the presence / absence information such as "there is an obstacle ahead" as in the prior art. (1) In the case of a road having a plurality of lanes, it is insufficient to transmit the traffic condition of each lane. (2) A case in which a vehicle traveling toward an obstacle avoids the obstacle by changing lanes may be considered. As described above, it is necessary to consider how an obstacle existing in a certain lane affects an adjacent lane. (3) When a vehicle running toward an obstacle decelerates to prevent a collision with the obstacle, it is necessary to prevent a collision from occurring. (4) When an obstacle occurs over a plurality of lanes, a vehicle traveling toward the obstacle decelerates, and a following vehicle passes the vehicle, thereby increasing the risk of collision with the obstacle. (5) When there is an obstacle in the oncoming lane, the vehicle traveling toward the obstacle may run off the opposite lane.

The present invention has been made in view of such circumstances, and not only provides information on the presence / absence of an obstacle using an information board, but also predicts a situation accompanying the obstacle after the occurrence of the obstacle. It is an object of the present invention to propose a device capable of providing information by using the above.

[0005]

[Means for Solving the Problems]

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. (Structure of Embodiment) The structure of the embodiment of the present invention is shown in FIG.
Shown in This embodiment is constituted by the following units. In FIG. 1, a road 1 represents two lanes on one side, and an accident vehicle 2 is stopped at the end of a curve. Accident car 2
In the lane 3 where the vehicle stops, a vehicle 4 traveling toward the accident vehicle 2 and a vehicle 5 are traveling. A vehicle 7 is running in the other lane 6.

[0007] Since the curve section has poor visibility from the straight section, the sensor heads 9A and 9B are provided so that the road condition can be monitored. Sensor head 9A, 9B
Does not particularly limit the sensor type such as a visible camera and an infrared camera. The outputs of the sensor heads 9A and 9B are processed by the sensor head output processing device 10 and the sensor head output processing device 11, and the position and speed of the vehicle existing in the curve section are obtained as a processing result.

The outputs of the sensor head output processing device 10 and the sensor head output processing device 11 are sent to a roadside processing device 12, where information to be displayed on an information plate 13 is created. Sent. Information board 1
In 3, information is provided to the driver by displaying according to the information sent from the roadside processing device 12.

(Operation of Embodiment) Before describing the operation of this embodiment, the behavior of each vehicle will be considered. In FIG. 1, the following behaviors (1) to (3) are mainly considered as the behavior of the vehicle 4 heading for the accident vehicle 2. (1) The vehicle 4 is prevented from colliding with the accident vehicle 2 by decelerating and stopping before the accident vehicle 2. (2) The vehicle 4 changes the lane if the vehicle 4 decelerates before the accident vehicle 2 and the adjacent vehicle is vacant.
Avoid collisions. (3) If the adjacent lane is vacant, the vehicle 4 does not decelerate, but changes lanes to avoid collision with the accident vehicle 2. At this time, the following effect (4) can be considered as an effect on the adjacent lane. (4) When the vehicle 4 decelerates and then changes lanes to an adjacent lane as described in (2) above, it is expected that the speed of the following vehicle 7 is higher than the traveling speed of the vehicle 4 after the lane change. Therefore, there is a risk that the vehicle 7 will collide with the vehicle 4.

In addition, the following (5) and (6) can be considered as effects on the lane where the accident vehicle exists. (5) As described in (1) above, when the vehicle 4 is decelerated and stopped in front of the accident vehicle 2 to prevent collision with the accident vehicle, there is a risk that the following vehicle 5 will collide with the vehicle 4. There is. (6) When the accident vehicle 2 stops over two lanes as shown in FIG. 2, the following vehicle 5 that does not notice the existence of the accident vehicle 2 There is also a risk of trying to pass and colliding with the accident vehicle 2.

Further, as the influence on the oncoming lane, the following (7) can be considered. (7) When the accident vehicle 2 stops over two lanes, there is a possibility that the vehicle 4 runs off the oncoming lane to avoid a collision with the accident vehicle 2 as shown in FIG.

With respect to the situations (1) to (7) described above, the present invention can provide accurate information by the following operations. First, in FIG.
The accident vehicle 2 is detected by the sensor head 9A. The output signal of the sensor head 9A is output from the sensor head output processing device 1
0, and the position coordinates of the accident vehicle 2 are calculated. The calculation result is sent to the roadside processing device 12 and converted into coordinates on the road (longitudinal coordinates of the road and coordinates of the road width direction) and stored. From the roadside processing device 12,
The position information of the accident vehicle is sent to the information board 13, and information on the presence or absence of the accident vehicle is displayed on the information board.

On the other hand, in FIG. 1, the sensor head 9A,
9B monitors the behavior of the vehicle 4. Sensor head 9
The output signals of A and 9B are processed by the sensor head output processing device 10 and the sensor head output processing device 11, respectively, and the coordinates relating to the position and speed of the vehicle 4 are calculated.
The calculation result is sent to the roadside processing device 12, converted into coordinates on the road (longitudinal coordinates of the road and coordinates of the road width direction) and stored.

The roadside processing device 12 transmits the prediction result to the information board 13 when the possibility of the lane change to the adjacent lane is predicted from the change in the position and speed of the vehicle 4. The information board also indicates that there is a vehicle whose lane is being changed, in addition to the above-described accident vehicle presence / absence information, and alerts the following vehicle (for example, the vehicle 7).

When the accident vehicle 2 stops over two lanes as shown in FIG. 2, the vehicle 4 cannot avoid the accident vehicle due to the lane change. I have to stop. However, the following vehicle 5
If it is not informed that the accident vehicle 2 has stopped over two lanes, the vehicle attempts to run past the side of the vehicle 4 and collide with the accident vehicle 2.

In preparation for such a situation, the present invention operates as follows. First, the output of the senshed 9A is sent to the sensor head output device 10, and the sensor head output processing device 10 calculates the position coordinates of the tip of the accident vehicle 2, the position coordinates of the tail, and the vehicle width. The calculation result is sent to the roadside processing device 12, which calculates the area occupied by the accident vehicle 2 on the road. After recognizing that the vehicle has stopped over two lanes, the recognition result is displayed on the information board 13.
Send to

In the information board, in addition to the information on the presence or absence of the accident vehicle,
The fact that the accident vehicle has stopped over two lanes is displayed, and the following vehicle (for example, the vehicle 5) is warned. Also,
If accident vehicle 2 is stopped over two lanes,
As shown in FIG. 3, the vehicle 4 is used to avoid a collision with the accident vehicle 2.
There is also the possibility of going out on the opposite lane.

In preparation for this case, the present invention operates as follows. The output signal of the sensor head 9B is processed by the sensor head output processing device 11, and coordinates relating to the position and speed of the vehicle 4 are calculated. The calculation result is sent to the roadside processing device 12, converted into coordinates on the road (longitudinal coordinates of the road and coordinates of the road width direction) and stored.

The roadside processing device 12 transmits the prediction result to the information board of the oncoming lane when the possibility of the lane change to the oncoming lane is predicted from the change in the position and speed of the vehicle 4. The information board also indicates that there is a vehicle that has deviated from the lane and warns the user.

As described above, in the embodiment of the present invention, (1) When an accident vehicle occurs in a poor visibility part, the present invention determines that a vehicle decelerating in front of the accident vehicle is present in a following vehicle. Since it is configured to transmit, collision and collision of head-on collisions are avoided. (2) In the case where an accident vehicle occurs in a part with poor visibility, the present invention captures the phenomenon that a vehicle heading for the accident vehicle avoids the accident vehicle by changing lanes and transmits the phenomenon to a subsequent vehicle. Secondary disasters in lanes that do not exist can be prevented. (3) When the accident vehicle has stopped over a plurality of lanes in the poor visibility section, the present invention is configured to transmit the state in which the accident vehicle has stopped over a plurality of lanes to a subsequent vehicle. Therefore, it is possible to prevent a vehicle attempting to decelerate and stop in front of the accident vehicle from overtaking and colliding with the accident vehicle. (4) In the poor visibility section, when the accident vehicle stops over a plurality of lanes, there is a possibility that the vehicle heading for the accident vehicle runs off the oncoming lane and avoids the accident vehicle. The present invention, in preparation for such a situation, is configured to warn the presence of a vehicle deviating from the lane on the display panel of the oncoming lane, so that it is possible to prevent the spread of the lane where the accidental vehicle exists to the oncoming lane. .

In the above-described embodiment, a form in which an object is captured as an image, such as a visible camera or an infrared camera, is proposed as a sensor. However, any sensor capable of capturing the motion of an accident vehicle or a vehicle is proposed. For example, the type of the sensor is not particularly limited. Also, if you need to add more sensors to monitor poor visibility,
The number of sensors is not particularly limited. If the number of information boards needs to be increased according to the road shape, the number of information boards is not particularly limited.

[0022]

As described above, the present invention has the following effects. When an accident vehicle occurs in the poor line-of-sight portion, the existence of the vehicle decelerating in front of the accident vehicle is transmitted to the following vehicle, so that there is an effect of avoiding a collision and collision. In addition, when an accident vehicle occurs in a poor visibility part, the present invention captures a phenomenon in which a vehicle heading for the accident vehicle avoids the accident vehicle by changing lanes and transmits the phenomenon to a subsequent vehicle. This has the effect of preventing secondary disasters in lanes that do not occur. Furthermore, in the poor visibility section, when the accident vehicle has stopped over a plurality of lanes, the present invention is configured to transmit the state in which the accident vehicle has stopped over a plurality of lanes to a subsequent vehicle. This has the effect of preventing a vehicle attempting to decelerate and stop in front of the accident vehicle to overtake the accident vehicle. Further, when the accident vehicle stops over a plurality of lanes in the poor visibility section, there is a possibility that the vehicle heading for the accident vehicle runs off the opposite lane and avoids the accident vehicle. The present invention prepares for such a situation, and is configured to warn the presence of a vehicle deviating from the lane on the display panel of the oncoming lane. Have.

[Brief description of the drawings]

FIG. 1 is an operation explanatory diagram of an embodiment of the present invention.

FIG. 2 is a diagram illustrating a different operation from the above.

FIG. 3 is an explanatory diagram of still another operation of the above.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Road, 2 ... Accident car, 3 ... Lane, 4 ... Vehicle, 5 ... Vehicle, 6 ... Lane, 7 ... Vehicle, 9A ... Sensor head, 9B ...
Sensor head, 10 ... Sensor head output processing device, 11
... Sensor head output processor, 12 ... Roadside processor, 1
3. Information board.

Claims (8)

[Claims] 1. An automobile road, comprising one or more information boards for displaying traffic conditions in a curve section with poor visibility in an upstream section of the section with poor visibility, and a traffic condition in a curve section with poor visibility. One or a plurality of sensor heads provided for monitoring, a sensor head output processing device for processing the output of the sensor head, and the information board based on a calculation result of the sensor head output processing device. And a roadside processing device having a function of performing an operation for displaying the presence of a vehicle decelerating in front of the accident vehicle that has occurred in the poor visibility part. 2. The safe driving support device according to claim 1, wherein the information board predicts and displays a phenomenon that a vehicle heading for the accident vehicle that occurred in the poor visibility part avoids the accident vehicle by changing lanes. A safe driving support device comprising a roadside processing device having a function of performing an operation. 3. The safe driving support device according to claim 1, further comprising a function of performing an operation for displaying a situation in which an accident vehicle has occurred over a plurality of lanes in an information board, and in a poor visibility part, in the information board. A safe driving support device comprising a roadside processing device. 4. On a road for automobiles, one or a plurality of information boards for displaying a traffic condition in a curve section with poor visibility on the opposite lane side of the section with poor visibility, and a traffic condition in a curve section with poor visibility. One or a plurality of sensor heads provided for monitoring, a sensor head output processing device for processing the output of the sensor head, and a sensor head output processing device based on a calculation result of the sensor head output processing device. And a roadside processing device having a function of performing a calculation for displaying the presence of the accident vehicle in the poor line-of-sight portion. 5. The safe driving support device according to claim 4, wherein the information board has a function of performing an operation for displaying a situation in which an accident vehicle occurs over a plurality of lanes in a poor visibility part. A safe driving support device comprising a roadside processing device. 6. On a road for automobiles, one or a plurality of information boards for displaying a traffic condition in a curve section with poor visibility in an upstream section of the section with poor visibility, and a traffic condition in a curve section with poor visibility. One or a plurality of sensor heads provided for monitoring, a sensor head output processing device for processing the output of the sensor head, and an information board based on a calculation result of the sensor head output processing device. , In addition to the function to display the presence of a vehicle decelerating in front of the accident vehicle that occurred in the poor visibility area, the vehicle heading for the accident vehicle that occurred in the poor visibility area avoids the accident vehicle by changing lanes. A roadside processing device having a function of performing an operation for predicting and displaying a phenomenon is provided. 7. On a road for automobiles, one or a plurality of information boards for displaying a traffic condition in a curve section with poor visibility in an upstream section of the section with poor visibility, and a traffic condition in a curve section with poor visibility. One or a plurality of sensor heads provided for monitoring, a sensor head output processing device for processing the output of the sensor head, and an information board based on a calculation result of the sensor head output processing device. A roadside processing device having a function of performing a calculation for displaying a situation in which an accident vehicle has occurred over a plurality of lanes in a poor visibility portion, where a vehicle decelerates in front of the accident vehicle that occurred in the poor visibility portion; A safe driving support device comprising: 8. On a road for automobiles, one or a plurality of information boards for displaying a traffic condition in a curve section with poor visibility in an upstream section of the section with poor visibility, and monitoring a traffic condition in a curve section with poor visibility. One or a plurality of sensor heads provided to perform the processing, the sensor head output processing device for processing the output of the sensor head, and the information plate based on the calculation result of the sensor head output processing device, Presence of a vehicle decelerating in front of the accident vehicle in the poor visibility area In addition to the function to display the situation in which the accident vehicle occurs in multiple lanes in the poor visibility area, And a roadside processing device having a function of performing a calculation for predicting and displaying a phenomenon in which a vehicle heading for the accident vehicle that has occurred avoids the accident vehicle due to a lane change. Safety driving support apparatus.