Radar sensors are used in rural road traffic blind spot early warning

China’s rural road traffic accidents have shown a serious upward trend. The reasons for this are as follows: “motorization” is growing at a higher rate, and safety hazards are rising; The characteristics of “hollowing”, “elderly drivers” and “left-behind children” are prominent; Backward traffic safety facilities, “road risk, man-made disaster” risk coexists; The task of “reducing and controlling the large” is arduous.

There are a large number of U-shaped, Z-shaped, Y-type, T-shaped and other intersections that cause traffic accidents in rural areas. Due to the obstruction of sight, the speed of the car is faster, which can easily cause serious traffic accidents. Most of the major traffic accidents in rural areas in the past ten years are vehicle overturns, and the stock of high-risk sections such as water, cliffs, sharp bends and steep slopes is still relatively large.

Our company took the lead in proposing the traffic convergence collision theory model – accident trajectory value, the size of which is related to time, vehicle speed, direction angle and other elements. In the same time and space, the closer the “accident trajectory value” of the vehicle traveling to the “accident hot spot area”, the greater the probability of traffic accident.

For example, the T-shaped intersection forms a blind spot due to greening and building blockage, which is prone to the following accidents: the left-turning vehicle and the branch vehicle on the main road collide, the two-way straight vehicle and the branch vehicle collide on the main road, and the right turning vehicle and the branch vehicle on the main road collide.
For T-shaped intersections, install radar monitoring in the 1st and 2nd positions of the main road to monitor the two-way traffic on the main road; Branch 3 radar monitors branch traffic.
When main road 1 and branch 3 come at the same time.

Early warning host interaction data; Trigger the “accident trajectory value” algorithm in real time to quickly make collision measurement and early warning: “Right side car” is displayed in branch 3; On main road 1 shows “Branch Road Incoming Cars”; Flashing lights, horns trigger alarms of different risk levels.
When the main road 2 and the branch 3 come at the same time.

Early warning host interaction data; Trigger the “accident trajectory value” algorithm in real time to quickly make collision measurement and early warning: “Left Incoming Vehicle” is displayed on Branch 3; “Branch Road Incoming Cars” is displayed on Main Road 2; Flashing lights, horns trigger alarms of different risk levels.
This system confirms the theory of traffic convergence collision of “accident trajectory value”, and successfully and scientifically and accurately realizes the management of traffic blind spots.

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