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Geomagnetic vehicle detection system and method based on radio frequency wireless charging

A wireless charging and vehicle detection technology, which is applied in the traffic control system, transmission system, traffic control system of road vehicles, etc., can solve the problems of insufficient detection accuracy of vehicle speed detection technology, and reduce the impact of noise and reduce the impact of noise. Effect

Active Publication Date: 2021-08-13
UNIV OF ELECTRONIC SCI & TECH OF CHINA +1
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, a geomagnetic vehicle detection system and method based on radio frequency wireless charging provided by the present invention solves the problem of insufficient detection accuracy in the existing technology for detecting vehicle speed

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  • Geomagnetic vehicle detection system and method based on radio frequency wireless charging
  • Geomagnetic vehicle detection system and method based on radio frequency wireless charging
  • Geomagnetic vehicle detection system and method based on radio frequency wireless charging

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Embodiment Construction

[0057] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0058] Such as figure 1 As shown, a geomagnetic vehicle detection system based on radio frequency wireless charging includes: multiple terminal devices, multiple routing devices, coordinators, multiple energy transmitters, gateways, routers, Internet servers, management monitoring terminals, cloud servers and database;

[0059] The multiple routing devices are respectively wirelessly connected to multiple energy transmitte...

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Abstract

The invention discloses a geomagnetic vehicle detection system and method based on radio frequency wireless charging, and the system employs a radio frequency energy receiving module and an energy collection module to continuously provide power for a geomagnetic sensor, thereby guaranteeing that a terminal device does not need to replace a battery for a long time. Free networking is carried out through the terminal equipment, routing equipment, a coordinator and an energy transmitter, so that the number of the terminal equipment can be flexibly increased; according to the method, by calibrating data of the geomagnetic sensor by eliminating soft magnetic effect and hard magnetic effect errors of the geomagnetic sensor, then performing baseline calibration on the geomagnetic sensor according to a calibration value of the data of the geomagnetic sensor to ensure the accuracy of the data output by the geomagnetic sensor, and filtering the data output by the geomagnetic sensor again, the influence of noise is reduced, the peak value of the data is reserved, and the purpose of weakening the influence of the noise without influencing effective data is achieved; according to the invention, the problem of insufficient detection precision in the existing vehicle speed detection technology is solved.

Description

technical field [0001] The invention relates to the field of vehicle detection and wireless sensor network, in particular to a geomagnetic vehicle detection system and method based on radio frequency wireless charging. Background technique [0002] The detection of vehicles is one of the most basic requirements in future intelligent transportation. Through the detection data of vehicles, traffic information such as traffic flow, road occupancy rate, and vehicle speed can be analyzed. Traditional vehicle detection is by laying induction coil sensors, ultrasonic sensors, infrared sensors, and monitoring cameras on the road. The induction coil mainly uses the induction coil and the LC oscillating circuit for detection. When a car passes by, it will cause the frequency of the oscillating line circuit to change. The accuracy rate is high, but the disadvantage is that the service life is limited and it will cause damage to the ground. Ultrasonic sensors and infrared sensors are...

Claims

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Application Information

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IPC IPC(8): G08G1/042G08G1/052H04L29/08H02J50/20
CPCG08G1/042G08G1/052H04L67/125H04L67/10H02J50/20
Inventor 武畅阿天仁魏学麟张莹吴鹏俞浩然黄肖曼陈阳
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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