A self-powered detection device and detection method for weighing road vehicles

Abstract

The invention discloses a self-powered detection device and detection method for weighing road vehicles. A displacement device, a piezoelectric module and a displacement detection device are arranged between the panel and the bearing base, and the piezoelectric module converts pressure into electric power as a sensor. Power supply with the control unit, and send the piezoelectric waveform signal of each axle passing to the control unit, based on the response characteristics of the piezoelectric signal to perceive the vehicle axle number and axle load information, the output sensitivity is high, the waveform response characteristic is remarkable, and the real-time transmission effect is stable At the same time, the displacement and acceleration of the panel represent the state of the vehicle during weighing, and judge whether the vehicle is skipping the scale, avoiding the vehicle's fee evasion, and effectively solving the disadvantages of the existing weighing equipment that is difficult to identify the "jumping" behavior of the fully loaded truck , through the piezoelectric power generation technology to realize the self-supply energy of the testing equipment, effectively broaden the new way of clean energy supply in the field of road engineering, and reduce the traditional energy consumption.

Description

technical field [0001] The patent of the invention belongs to the field of road engineering and relates to vehicle weighing detection, in particular to a self-powered detection device and detection method for road vehicle weighing. Background technique [0002] In order to comprehensively and effectively control the over-limit and overloaded transportation behavior of expressway trucks, and further ensure the safety and convenience of road transportation, since 2020, the whole country will uniformly implement the weighing inspection of expressway entrances according to the vehicle (axle) type. Currently, the axle group type weighing detection equipment With its advantages of large weighing range, high precision and wide application, it is widely used. [0003] The work of the existing weighing equipment depends on the traditional power supply, and it is a common problem that the ability to effectively identify the "jumping" behavior of a fully loaded truck is poor. "Jumping"...

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Problems solved by technology

[0005] Aiming at the problems that the existing vehicle weighing equipment cannot identify the vehicle's jumping scale and the measurement is inaccurate, the present invention provides a self-powered detection device and detection method for road vehicle weighing, which has a simple structure and is easy to operate. Accurate and fully automatic detection, at the same time, it can realize the self-supply energy of the equipment through self-generation technology, effectively reduce the energy consumption of the power grid, and can be applied to the weighing detection at the entrance of expressway toll stations

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