CN206441349U - A kind of bend collision early warning system - Google Patents

Abstract

The utility model discloses a kind of bend collision early warning system, system respectively sets a monitoring early-warning device in the crook that enters at bend two ends, each monitoring early-warning device includes detecting the millimetre-wave radar into curved direction vehicle, to the alarm indication screen for entering curved direction display information, main control unit and wireless communication module, the millimetre-wave radar outputs signal to main control unit, the main control unit output alarm signal is to alarm indication screen, the wireless communication module communicates with main control unit, the wireless communication module of two monitoring early-warning devices is communicated.The system can effectively improve the security of hill path curve traffic, reduce contingency occurrence probability.

Description

A Curve Anti-Collision Warning System

technical field

The utility model relates to the field of intelligent transportation, in particular to an early warning device for preventing vehicle collisions on curved roads in mountainous areas.

Background technique

With the continuous improvement of people's living standards, the number of trips is also increasing, especially some primitive ecological scenic spots in mountainous areas are more popular. In view of the special geographical environment in mountainous areas, the road has many curves and the line of sight is seriously blocked, which makes it impossible to observe the other car from a long distance at the curve. In addition, the lane is narrow. Most drivers tend to drive in the middle of the road for safety, occupying part of the reverse direction. Lanes have brought potential hidden dangers to the safety of driving in curves. The commonly used method is to add warning signs at the corners. This normalized reminder method, regardless of whether there is danger or not, causes most drivers to be paralyzed by the reminder information, and then ignore it, and no obvious warning effect can be achieved. In addition, there are also patents that mention the installation of radar or video monitoring modules on vehicles to detect the road conditions ahead, but they only detect the road conditions in curves, and it is impossible to determine whether there is an incoming car in the opposite direction of the curve. The reminder effect is similar to that of roadside signs. If there is an intelligent detection device installed at both ends of the curve to detect the vehicles approaching the curve at a long distance and communicate with the intelligent detection device at the other end through wireless communication, and pass electronic road signs and voice in advance (simulating vehicle horn) to remind, just can avoid the occurrence of this kind of traffic accident greatly.

Utility model content

The technical problem to be solved by the utility model is to realize an early warning device that can give vehicle safety prompts to avoid collisions when driving on curves in mountainous areas.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a curve anti-collision early warning system, the system is provided with a monitoring and early warning device at the corners at both ends of the curve, each of the monitoring and early warning devices includes The millimeter-wave radar of the direction vehicle, the alarm display screen that displays information in the direction of entering the curve, the main control unit and the wireless communication module, the millimeter-wave radar outputs signals to the main control unit, and the main control unit outputs alarm signals to the alarm display screen , the wireless communication module communicates with the main control unit, and the wireless communication modules of the two monitoring and early warning devices communicate.

Each of the monitoring and early warning devices is provided with a voice alarm module, and the voice alarm module is connected with the main control unit.

Each of the monitoring and early warning devices is provided with a visual monitoring system, and the visual monitoring system outputs signals to the main control unit.

The system is equipped with an auxiliary lighting device at the curve, and the auxiliary lighting device includes a communication unit, a lighting unit and a control unit, the communication unit communicates with the wireless communication modules of the two monitoring and early warning devices, and the communication unit communicates with the control unit The control unit communicates with the unit, and the control unit outputs the switching signal to the lighting unit.

The auxiliary lighting device also includes two road condition display screens, the road condition display screens are suspended and fixed above the curve, and the two road condition display screens are respectively facing two corner-entry directions, and each road condition display screen is equipped with a night vision Functional video monitoring module, the video monitoring module is fixed next to the display screen to collect road conditions in the direction of the incoming curve, and the video monitoring module that collects road conditions in one direction of the curve outputs video information to the road condition display screen facing the other direction of the curve.

The millimeter-wave radar is connected to the main control unit through the CAN bus and sends the radar detection result information to the main control unit through the CAN bus,

The visual monitoring module is also connected to the main control unit through the CAN bus to send the visual detection result information to the main control unit, and the main control unit fuses the radar and visual detection result information and sends it to the control decision software of the main control unit module, the output result of the decision-making module of the main control unit is sent to the intelligent monitoring and anti-collision early warning device at the other end through the wireless communication module, and the intelligent monitoring and early warning device controls the alarm display through the main control module screen and voice alarm module to remind, while controlling the auxiliary lighting device for advance lighting. The warning display screens are respectively facing two directions of entering the bend.

The utility model has the following advantages:

The vehicle detection and alarm devices of the utility model are respectively installed at both ends of the curve to monitor the vehicles in real time. Only when there is a danger of collision, it will call the police, which overcomes the defect that the fixed reminder of the street sign is easy to make people paralyzed;

The vehicle detection and alarm devices of the utility model are respectively installed at both ends of the curve to monitor the vehicles in real time. Overcome the shortcomings of installing a vision system on the vehicle that only recognizes curves and that curves are not easy to recognize under night conditions;

The utility model visually reminds the vehicles approaching the curve through the electronic display screen above the road in front of the curve, and simultaneously controls the horn to emit the sound of the vehicle horn to simulate the horn sound from the approaching vehicle at the other end of the curve to remind the vehicle approaching the curve , improving the effectiveness of danger reminders;

The utility model adopts the combination mode of the visual video monitoring module and the millimeter wave radar to detect the vehicle, which overcomes the deficiency of a single sensor.

Description of drawings

The following is a brief description of the content expressed by each piece of accompanying drawing in the specification sheet of the utility model:

Fig. 1 is a hardware block diagram of the curve anti-collision warning system;

Fig. 2 is the flow chart of the control method of the curve anti-collision warning system;

Figure 3 is a schematic diagram of the scene installation of the curve anti-collision warning system.

detailed description

The system installs vehicle detection devices on the roadside or above the road at both ends of the curve in the mountainous area, detects the speed and distance of the vehicle coming from the distance in the lane and judges the time of entering the curve, and sends it to the other end of the curve through the wireless communication module 4 The detection device at the other end also detects the incoming vehicles in the lane in real time, and recognizes the speed and distance of the incoming vehicles, and judges the time to enter the curve. If possible, vehicles from two directions enter at the same time within a short period of time. For curves, the LED display screen installed above the lane at the curve will give danger reminders and sound a simulated vehicle horn to remind the approaching vehicle on the other side of the curve, reminding them to slow down and drive in the right lane.

As shown in Figure 1, the monitoring and early warning device is used to detect vehicles approaching the curve on the road ahead of the curve. The two functions are the same, they can communicate with each other, and give danger warning reminders, including through large-screen electronic display screens and horn reminders . The monitoring and early warning device includes a millimeter-wave radar 2 for detecting vehicles approaching in front of a curve, a visual perception system, a control unit, a wireless communication module 4 , an LED warning display 5 and a voice warning module 6 .

The millimeter wave radar 2 is used to detect in real time the relative distance, speed and azimuth angle of the approaching vehicle ahead of the curve, and send it to the main control unit 1 through CAN communication.

The visual monitoring system 3 is used to cooperate with the millimeter wave radar 2 to further identify the validity of the vehicle, and send the identification result to the main control unit 1 through the CAN bus. The information fusion of radar and vision can effectively improve the accuracy and effectiveness of the environment perception ahead of the curve.

The main control unit 1 sends the information sent by the millimeter wave radar 2 and the visual monitoring system 3 through the CAN bus to the monitoring unit at the other end of the curve through the wireless communication module 4, and at the same time combines the information sent by the monitoring device at the other end of the curve. Based on the information detected at one end, it is judged whether the vehicles at both ends of the curve enter the curve at the same time or within a short period of time. The voice alarm module 6 sends the sound of simulating the vehicle horn, reminding that the other end of the curve has a vehicle approaching.

Vehicle detection uses the combination of millimeter-wave radar 2 and video monitoring module to detect vehicles coming to the lane, and improves the accuracy of detection through data fusion. At the same time, it solves the problem that the vehicle detection effect of the night video monitoring module is significantly reduced and is affected by environmental factors.

In addition, the system is equipped with an auxiliary lighting device at the curve. The auxiliary lighting device includes a communication unit, a lighting unit and a control unit. The communication unit communicates with the wireless communication modules 4 of the two monitoring and early warning devices, and the communication unit communicates with the control unit. The control unit outputs a switching signal to the lighting unit, and the lighting level can be selectively increased through detection.

The auxiliary lighting device also includes two road condition display screens, which are suspended and fixed above the curve, and the two road condition display screens are respectively facing two directions of entering the bend, and each road condition display screen is equipped with a video surveillance system with night vision function. Module, the video monitoring module is fixed next to the display screen to collect the road conditions in the incoming bend direction, and the video monitoring module that collects the road conditions in one bend-in direction outputs video information to the road condition display screen facing the other bend-in direction, that is, each bend-in direction You can observe the image information of the road conditions at the corner of the incoming vehicle through the road condition display screen. In order to improve the safety of the equipment, you can add a rainproof and dustproof cover outside the video monitoring module and the road condition display. The rainproof and dustproof cover can be Dark opaque, reducing the impact of strong light on the screen.

The reminder method is reminded through the large LED screen above the vehicle road. When there is no danger, an advertisement can be played, and when there is danger, a danger reminder is displayed, accompanied by animation. At the same time, by controlling the high-power horn to emit the sound of simulating the horn of the car on the other side of the curve, reminding the car to slow down and drive in the right lane. It overcomes the problem that the horn at one end of the curve cannot be heard at the other end and the problem of insensitivity to ordinary voice reminders, and improves the effectiveness of danger reminders.

Based on the above system, the control method is shown in Figure 2, including the following steps:

1) After the system is powered on, the monitoring and early warning devices perform self-inspection and interactive fault detection results; including the self-inspection of the radar system, visual monitoring system 3, wireless communication module 4, LED alarm display 5, and voice alarm module 6 and other subsystems , and at the same time send the self-test result to the monitoring and early warning device, and then perform step B;

2) If there is a fault in the system, a fault alarm will be issued, otherwise C will be executed;

3) Real-time monitoring of vehicles entering the curve and information interaction between the two monitoring devices, and at the same time determine whether the vehicles at both ends enter the curve at the same time or enter the curve at the same time within a very short interval. If yes, go to step 4, otherwise go to step 3;

4) The main control unit 1 controls the LED alarm display screen 5 to display the danger warning warning display, and at the same time controls the voice alarm module 6 to issue a horn sound simulating the approaching vehicle on the other side of the curve to carry out the danger warning warning reminder.

If the millimeter-wave radar 2 detects that the vehicle is speeding, an alarm will be given to avoid the vehicle entering the curve too fast and reduce the probability of accidents; if the millimeter-wave radar 2 detects that a vehicle is entering the curve, the lighting of the auxiliary lighting device will be turned on The unit, through lighting, allows the driver to focus on it, increases the brightness of the lighting at the corner, and allows the driver to observe the road conditions more clearly. If the millimeter wave radar 2 detects that a vehicle is entering the curve, the road condition display and video will be activated. monitoring module, if there is no new vehicle entering the curve within the preset rated time, the road condition display screen and video monitoring module will be turned off, and the incoming video information will be displayed, which is more convenient for the driver to understand the incoming road conditions. Through the switch setting of the system, Avoid the long-term work of the video surveillance module and road condition display to affect the working life.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned methods, as long as various insubstantial improvements are made by adopting the method concept and technical solutions of the utility model, or Directly applying the ideas and technical solutions of the utility model to other occasions without improvement is within the protection scope of the utility model.

Claims (5)

1. a kind of bend collision early warning system, it is characterised in that：System respectively sets a monitoring in the crook that enters at bend two ends Prior-warning device, each monitoring early-warning device includes detecting millimetre-wave radar into curved direction vehicle, shown to entering curved direction Alarm indication screen, main control unit and the wireless communication module of information, the millimetre-wave radar output signal to main control unit, The main control unit output alarm signal to alarm indication screen, the wireless communication module communicates with main control unit, two The wireless communication module of the monitoring early-warning device is communicated.

2. bend collision early warning system according to claim 1, it is characterised in that：Each monitoring early-warning device is set There is voice alarm module, the voice alarm module is connected with main control unit.

3. bend collision early warning system according to claim 1 or 2, it is characterised in that：Each monitoring and early warning dress Visual monitor system is installed, the visual monitor system outputs signal to main control unit.

4. bend collision early warning system according to claim 1, it is characterised in that：System is shone in corner provided with auxiliary Bright device, the auxiliary lighting apparatus includes communication unit, lighting unit and control unit, described in the communication unit and two The wireless communication module communication of monitoring early-warning device, the communication unit is communicated with control unit, and described control unit output is opened OFF signal is to lighting unit.

5. bend collision early warning system according to claim 4, it is characterised in that：The auxiliary lighting apparatus also includes Two road conditions display screens, the road conditions display screen is suspended vacantly above corner, and two road conditions display screens are respectively facing two Enter curved direction, and each road conditions display screen is furnished with the video monitoring module with night vision function, the video monitoring module is fixed Gathered by display screen come to entering curved direction road conditions, and collection one enters the video monitoring module output video letter of curved direction road conditions Breath extremely enters the road conditions display screen in curved direction towards another.