Vehicle wireless passive weighing detection system and detection method thereof

Abstract

The invention provides a vehicle wireless passive weighing detection system and detection method thereof. The system includes a vehicle wireless passive surface acoustic wave weighing module and a radio frequency antenna module, the vehicle wireless passive surface acoustic wave weighing module includes one or more wireless passive SAW pressure sensors that are installed in the bearing structure of the vehicle bearing structure to measure the vehicle load weight; and the radio frequency antenna module is installed on a pole on the road side or above the road to query the information of the pressure sensors of all passing vehicles. The vehicle wireless passive weighing detection system has the doppler velocity measurement function and also has the characteristics of being simple in structure, high in monitoring device installation and configuration flexibility, having no influence to road normal passing, and being high in harsh environment tolerance capability. The vehicles can pass the monitoring point at high speed, and the problems of an overload detection system in the prior art can be fundamentally solved.

Description

technical field [0001] The invention relates to a detection system and a detection method thereof, in particular to a vehicle-mounted wireless passive weighing detection system and a detection method thereof. Background technique [0002] For a long time, overloaded vehicles have been a serious threat to traffic safety and bridge maintenance. Due to the rolling of overloaded vehicles, the road surface is prone to cracks, potholes, subsidence, muddying, rutting, broken bridge pavement, board fractures and other diseases. Every year All will invest huge sums of money for maintenance, which is not only a great burden on road construction, but also a great traffic safety hazard. Weight measurement and weighing monitoring systems are used in all aspects of production and life in modern society, especially in the fields of transportation, industrial production lines, warehousing and logistics. played an extremely important role. [0003] At present, most of the vehicle load dete...

AI Technical Summary

Problems solved by technology

In harsh electrical and electromagnetic environments, long wiring is susceptible to external interference, which affects the accuracy and reliability of the system

[0006] 3. Setting up a special station card to weigh and detect vehicles requires vehicles to stop or slow down, which will reduce the efficiency of road traffic and easily cause traffic jams

[0008] 11. There is no cable connection, so the power supply must rely on the battery. The continuous working time of the weighing equipment is limited by the battery power. When the battery power is too low, the work must be stopped, and the battery must be replaced or charged. The operation process is more cumbersome. , and frequent battery replacement and charging and discharging operations also reduce the reliability of the device

[0009] 12. Due to the battery design inside the weighing equipment, the packaging of the equipment needs to have an excellent waterproof and dustproof design, resulting in high equipment costs

Also, because battery performance is greatly affected by temperature, the equipment has higher requirements on the ambient temperature of the workplace, and may not even work normally in extreme environments.

[0010] 13. Also because the communication quality of commonly used wireless data transmission modules is easily affected by other wireless signals, the system reliability is not high

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