A guardrail collision detection device, system and method

Abstract

The invention discloses a barrier collision detection device, a detection system and a detection method. The collision detection device comprises a collision detection module, a positioning module, awireless communication module, a wakeup and dormancy module, a processor and a power supply module. The device has a simple structure and low energy consumption and can work for a long time. The collision detection system comprises a plurality of collision detection devices, a data storage module, a data processing module, an alarm module, a data receiving module and a front-end display module. The core of the data processing module of the system is the collision detection algorithm provided in the invention, the algorithm is simple and effective, the collision position can be positioned accurately, problems of error judgment, more judgment and the like can be effectively recognized, and redundancy is realized. The system is intuitive and automatic, and has a big data processing and analysis ability.

Description

technical field [0001] The invention relates to a guardrail collision detection device, system and method, and is especially suitable for detection of highway guardrails with a buffer structure such as expressways. Background technique [0002] According to the statistics of national road traffic accident data in 2016, the number of deaths per 10,000 vehicles in road traffic accidents was 2.1, which was the same as that of the previous year. Based on the 194.4 million car ownership in 2016, it can be concluded that the number of road traffic accident deaths in China in 2016 was about 40,824, an increase of 4,646 compared with 36,178.8 in 2015. Especially the consequences of traffic accidents on expressways are the most serious. Because the speed of vehicles on the expressway is fast and the energy of movement is large, once a traffic accident occurs, the resulting impact force is strong and the consequences are very serious, often resulting in mass death and mass injury. Un...

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Problems solved by technology

[0004] Chinese patent application CN2017101990197 discloses a collision detection and alarm device and method for intelligent guardrails on highways. The patent mainly uses a single circuit circuit for detection. If a collision occurs and the circuit breaks, the power-off detection device will generate a power-off signal. The disadvantage of the method is that there are cases of accidental disconnection, such as false alarms caused by aging and disconnection of the line; another situation is that the tension and toughness of the loop cable will affect the collision detection, making it impossible to detect, etc.; The degree of collision cannot be measured

[0005] Patent CN2013800755062 discloses a protective barrier for roads, the collision detector / indicator of this patent is used to indicate the position of the barrier involved in a collision or accident and is also used to inform the traffic control station or public assistance personnel of the accident and the occurrence of the accident The disadvantage of this patent is that the accuracy of the collision position is not accurate enough, and the equipment is relatively independent. If there are two or three collisions in one accident, there will be overreporting and false reporting.

[0006] Patent CN2015100387644 discloses a wireless sensor network-based road guardrail damage accident monitoring system. The problem is that there are too many local area networks; each wireless sensor local area network master node and sub-node are installed on the guardrail, and a local area network has only one GSM / GPRS module. If the master node is damaged, the local area network will fail, and the information will not be sent out, so the redundancy is poor

[0007] Patent CN2016201786779 discloses an intelligent guardrail capable of judging the location of an accident. The disadvantages are: using a vibration switch, the severity of the collision cannot be measured; battery power supply, it is troublesome to charge or replace the battery, and there is no uniform standard for the installation position of the equipment Wait

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