JPH10302200A - Traffic control system for preventing accident - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a traffic accident especially due to sudden encounter by giving a caution and a warning to each of traveling objects like automobiles which are approaching an intersection between a priority road and an alley or the like crossing it from both directions. SOLUTION: A traveling object detection means 11 is arranged before the intersection between a priority road 1 and an alley 2 crossing it, and the classification and the speed of a traveling object 3 are detected when it reaches a position of a prescribed distance S before. A danger report device 20 set in the vicinity of the intersection receives information related to the traveling object 3 from the detection means 11 and discriminates whether the speed is proper or not and gives a warning by an information display plate 24 set at the intersection in the case of the detected speed exceeding a proper speed. An on-vehicle speed controller mounted on each of automobiles approaching the intersection on the priority road displays a warning and controls the speed to the proper speed based on danger information which consists of the classification and the speed related to the traveling object 3 from the danger report device 20, various traffic information related to the priority road 1, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a traffic control system for a car accident or the like.

[0002]

2. Description of the Related Art With the aim of preventing traffic accidents that continue to increase, a warning device is issued when a running vehicle exceeds a dangerous speed, and a safety device for alerting a driver to prevent a traffic accident is provided. Many control systems have been proposed.

[0003] For example, there is an automobile speed management system described in Japanese Patent Application Laid-Open No. 6-295398. In this case, a means for transmitting a speed limit signal to the vehicle is provided in addition to a signal board and a display board (sign) indicating traffic regulation and the like. A modulated ultrasonic wave or a radio signal wave corresponding to the warning from them is transmitted to the automobile. An automobile is equipped with a receiver and a speed detector for detecting a current traveling speed. The received signal and the current speed detection signal are compared, and a command to set the regulated speed to the drive function unit and a warning display / warning sound are issued. The parking function unit is driven by this command signal, and the vehicle speed is automatically managed and controlled. Thus, even if the driver of the automobile consciously or unconsciously steps on the accelerator to increase the speed, the system controls the traveling speed so as not to increase more than the commanded speed.

In the on-vehicle navigation system described in Japanese Patent Application Laid-Open No. Hei 5-11700, a radio device receives a radio wave from a position beacon and detects a direction of the vehicle by a sensor. This gives us vehicle location information,
The road traffic regulation information corresponding to this position information is stored on CD-RO.
Read from M and display on the display. Further, the traffic violation determination unit compares the position information with the road traffic regulation information, and warns with a display, a warning light, and a speaker when the vehicle violates the traffic.

Further, there is an alarm device based on the effective braking stop distance described in Japanese Patent Application Laid-Open No. 60-85045.
In the case of this device, the control unit usually includes weather, rain,
Conditions such as snow-covered road surface freezing and the like, and basic data of numerical conversion on the braking stop distance under those conditions are selectively stored and stored in advance. Further, in each weather condition, a signal is input to the control unit as a result of sensing the distance between the vehicle speed detected by the speed sensing device and the immediately preceding tangible object in the straight traveling direction by the headway sensing device using an oscillating radio wave or the like. The control unit issues a warning to the warning device when the vehicle enters within the required distance for sudden stop according to the vehicle speed at that time.

[0006]

However, in such a conventional apparatus or system, a moving body is approaching from a road on one side and a road on the other side toward an intersection.
If one of the mobiles overlooks a warning message or warning or consciously ignores it, there is a case that an accident at an intersection cannot be avoided.

SUMMARY OF THE INVENTION It is an object of the present invention to issue a warning message or a warning to each of moving bodies approaching from an intersection at an intersection with an alley or the like which intersects a priority road, thereby preventing a traffic accident at a particular intersection. An object of the present invention is to provide an accident prevention traffic control system capable of preventing accidents.

[0008]

SUMMARY OF THE INVENTION An accident prevention traffic control system according to the present invention is disposed at a position a predetermined distance before an intersection of a second road intersecting with a first road. A moving body detecting means for detecting the type and speed of the moving body approaching the road toward the intersection when the moving body reaches a predetermined distance, and the speed of the moving body detected by the moving body detecting means is appropriate. A danger notification device that determines whether or not the vehicle is at a speed and issues a warning if the speed exceeds the appropriate speed, and is disposed near the intersection so that a moving object approaching the intersection on the second road can be visually recognized. An information display board for displaying a warning sent from the notification device toward the moving object, and an information display board mounted on a vehicle approaching the first road toward the intersection, and a second road transmitted from the danger notification device at the intersection. Type related to moving objects approaching And risk information consisting of speed and, first
And an on-vehicle speed regulation device that receives various traffic information related to the road, displays a warning based on the information, and controls the speed to an appropriate speed.

In this case, if the first road is a priority road having a wide road width, the accident prevention traffic system is effective when the second road is an alley having a narrow road width.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an accident prevention traffic control system according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a plan view schematically showing an intersection where a system according to the present embodiment is installed. In this case, a branch road such as an alley 2 having a narrow road width intersects with a wide priority road 1 in a T-shape, and an intersection with no sign signal is not provided.

As shown in FIG. 2, in the alley 2, at a position of a predetermined distance S before entering the intersection with the priority road 1,
The moving body detecting means 11 is installed using an existing or newly installed telephone pole 10 or the like. The moving body detecting means 11 detects the moving body 3 traveling on the alley 2 toward the intersection of the priority road 1. That is, for example, the moving body detecting means 11 is arranged in a plurality of stages above and below in the vertical direction, and corresponds to the size of the moving body 3 such as an automobile, a motorcycle, a bicycle, and a person approaching an intersection. And sound them, light, heat,
Detection is performed based on the radio wave and the height of the moving object, and a detection signal is output.

Further, a danger notification device 20 is attached near the moving body detecting means 11 by using the electric pole 10. As shown in FIG. 3, this danger notification device 20
It has a data processing unit 21 for processing the detection signal sent from the moving body detection means 11. The danger notification device 20 has a traffic data receiving unit 22 to which traffic data on the priority road 1 such as traffic conditions, road regulations, and road information are input in real time. The data is sent to the processing unit 21. Further, it has a wireless transmission unit 23,
Can be transmitted to the automobiles 4 and 5 traveling on the priority road 1. At the same time, an alarm display command signal based on the processing is sent from the data processing unit 21 to the information display board 24 installed at the intersection of the alley 2. In this information display board 24,
The alarm is activated by an alarm display command signal from the data processing unit 21, and the alarm can be displayed in the form of voice, text, buzzer sound, or the like.

On the other hand, vehicles 4 and 5 running on priority road 1
In the vehicle, the vehicle speed control device 30 shown in FIG.
Is installed.

That is, the vehicle speed control device 30
Has a receiving unit 31 that wirelessly receives the traffic information transmitted from the above-described danger notification device 20 installed near the intersection of the alley 2 and receives the traffic information from the danger notification device 20 received here. And an information analysis unit 32 for performing analysis. In addition, a vehicle speed control device 33 by a microcomputer is provided. In this case, an analysis signal from the information analysis unit 32 is received and various processes including comparison and calculation are performed to appropriately control the vehicle speed. Furthermore, car navigation 3
4, the warning display and the warning sound are displayed on the screen of the monitor 35 and the meter panel 36 based on the instruction from the information analysis unit 32, so that the drivers of the automobiles 4 and 5 are notified and recognized. ing.

Next, with the above configuration, the traffic control system of the present embodiment operates and operates as follows.
Moving body 3 approaching alley 2 toward priority road intersection
Is detected by the moving body detecting means 11 when the distance reaches the detection point S in the case of a motorcycle, bicycle, or person other than an automobile. In the data processing unit 21 of the danger notification device 20,
By processing the detection signal from the moving body detecting means 11, it is determined whether the moving body 3 is a motorcycle, a bicycle, or a person. If the moving bodies 3 exceed the preset speed at the stage where the detection point distance S just before the intersection is reached, a warning signal is output from the data processing unit 21 that has determined that, and the information before the intersection is output. The warning is displayed on the display panel 24 as a danger warning. That is, the danger warning is notified and displayed by voice, text, buzzer sound, or the like, and the mobile unit 3 approaching the intersection is recognized.

The moving object 3 approaching the intersection on the alley 2
In the case of a vehicle as shown in the figure, if the vehicle speed exceeds the set speed when the vehicle reaches the detection point distance S just before the intersection, the moving body detecting means 11 detects the speed and outputs a signal to the danger notification device 20. Send to processing section 21. The data processing unit 21 determines that there is danger in the processing based on the detection signal, and transmits a danger warning signal from the transmission unit 23 to the cars 4 and 5 running on the priority road 1.

In the automobiles 4 and 5 that are traveling, the danger notification device 2 is provided in the receiving unit 31 of the vehicle speed control device 30.
The danger warning signal transmitted from 0 is received. The information analysis unit 32 sends the danger warning signal to the vehicle speed control device 33 to appropriately control the speed. In synchronism with this, the warning is sent to the car navigation system 34, a danger warning is displayed on the monitor screen 35, and a warning sound is sounded on the meter panel 36. Attention is urged to prevent encounter accidents at intersections.

At this time, the danger notification device 20 in the alley 2
From, for cars 4 and 5 running on priority road 1,
The traffic data on the priority road 1 such as traffic conditions, road regulations, and road information is reported in real time.
That is, various traffic information collected by the traffic data receiving unit 22 of the danger notification device 20 is once processed by the data processing unit 21, and the data of the various traffic information is transmitted from the data processing unit 21 to the on-vehicle speed regulation of each of the vehicles 4 and 5. Sent to device 30. In each of the automobiles 4 and 5, it is possible to manage to an appropriate speed based on the received traffic data.

[0020]

As described above, the traffic control system for preventing accidents according to the present invention is particularly effective when installed near an intersection of a T-shaped intersection with a wide priority road. A warning can be given to a car, a bicycle, or the like approaching the vehicle by warning and displaying a danger when the speed limit is exceeded. On the other hand, for vehicles approaching the intersection on the priority road,
The speed information of the car or the bicycle approaching the intersection from the alley is warned as a danger signal. As a result, a warning is simultaneously given to the moving body traveling on both the priority road and the alley, and an excellent effect of preventing an accident at a meeting, etc. can be exhibited. This is much more effective than conventionally known curve mirrors and the like.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing a case where an embodiment of an accident prevention traffic control system according to the present invention is installed at a T-shaped intersection.

FIG. 2 is a front view showing a system configuration of the present embodiment installed at an alley intersection.

FIG. 3 is a block diagram showing a configuration of a warning device according to the present embodiment installed at an alley intersection.

FIG. 4 is a block diagram illustrating a configuration of a vehicle speed regulation on-vehicle system;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Priority road (1st road) 2 Alley (2nd road) 3 Moving body such as a car 4, 5 Car running on a priority road 11 Moving body detection means 20 Danger notification device 21 Data processing unit 24 Information display board 30 In-vehicle speed regulation device 32 Information analysis unit 33 Vehicle speed control device 35 Monitor screen

Claims (4)

[Claims] 1. A moving body which is arranged at a position a predetermined distance before an intersection of a second road intersecting with a first road and which is approaching the second road toward the intersection, is located at a predetermined distance. Moving body detecting means for detecting the type and speed of the moving body when the distance has been reached; and determining whether or not the speed of the moving body detected by the moving body detecting means is a proper speed, and exceeding the proper speed. If so, a danger notification device that issues a warning, and the second road is disposed near the intersection so that the moving body approaching the intersection can be visually recognized, and the warning sent from the danger notification device is An information display board that is displayed toward a moving object, mounted on a vehicle approaching the first road toward an intersection, and the information road board that is approaching the intersection on the second road transmitted from the danger notification device; Type and speed for moving objects And a vehicle-based speed regulation device that receives the various danger information and the various traffic information related to the first road, displays a warning based on the information, and controls the speed to an appropriate speed. Accident prevention traffic control system. 2. When the moving object is an automobile, the moving object detection means detects whether the vehicle is approaching an intersection and has performed either a deceleration operation or an acceleration operation, and outputs a detection signal. The accident prevention traffic system according to claim 1, wherein the traffic is transmitted to the danger notification device. 3. The information display board according to claim 1, wherein a warning can be displayed by using any one of characters, voice, blinking, and alarm sound or a combination thereof.
Accident prevention traffic system described in. 4. The accident prevention traffic according to claim 1, wherein said first road is a wide road priority road, and said second road is a narrow road alley. system.