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A WSN system for high-precision cable manhole cover movement detection uses TDOA ranging method by Ping Luo; Huajun Wang; Changcheng Xiang; Chengbing Huang is a Physics and Astronomy article available to read on EtoBox.

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## Abstract In the research of the power cable anti-theft problem, the demand for high-precision positioning of the cable manhole cover is proposed. For this reason, a wireless sensor WSN node with ranging function is studied. The system uses the Stm32 chip as the MCU core, uses 433MH radio frequency signals and ultrasonic signals to implement a ranging circuit based on the TODA principle of arrival time difference, and sends data to the cloud server through the NB-IoT module to achieve the purpose of alarming. The system has the characteristics of good real-time performance and high positioning accuracy. It can be applied to the theft prevention of cable manhole covers, and can also be extended to the detection of indoor moving objects.

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Author

Ping Luo; Huajun Wang; Changcheng Xiang; Chengbing Huang

Publisher

IOP Publishing

Published

2021

Language

EN

Field

Physics and Astronomy (Physical Sciences)