A WSN system for high-precision cable manhole cover movement detection uses TDOA ranging method. Issue 1 (July 2021)

• Record Type: Journal Article
• Authors: Luo, Ping; Wang, Huajun; Xiang, Changcheng; Huang, Chengbing
• Is Part Of: Journal of physics. Volume 1971:Issue 1(2021)
• Publication Date: 2021-07
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1971/1/012024
• Languages: English
• ISSNs: 1742-6588

Abstract

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.