The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2021
Filed:
Jun. 28, 2018
State Grid Shanghai Municipal Electric Power Company, Shanghai, CN;
Lijun Zhou, Shanghai, CN;
Yunjie Zhou, Shanghai, CN;
Xiaojuan Jiang, Shanghai, CN;
Hong Min, Shanghai, CN;
Tiecheng Lou, Shanghai, CN;
Jinhua Yu, Shanghai, CN;
Jia Chen, Shanghai, CN;
Kaibo Ma, Shanghai, CN;
Dekang Wen, Shanghai, CN;
Ting Ye, Shanghai, CN;
Qinqin Han, Shanghai, CN;
Ran An, Shanghai, CN;
Tianyu Yang, Shanghai, CN;
Chenyang Xuan, Shanghai, CN;
Yin Zhou, Shanghai, CN;
Chenbin Wu, Shanghai, CN;
STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER COMPANY, Shanghai, CN;
Abstract
A warning device for preventing underground cables against accidental excavation comprises an optical fiber vibration sensor having a mode recognition function, a signal processing unit, a wireless communication unit and a power supply unit, wherein the signal processing unit is connected to the optical fiber vibration sensor, the wireless communication unit and the power supply unit, and the optical fiber vibration sensor is installed within a set range of a cable and is used to monitor vibration signals around the cable, so that once a behavior possibly endangering the cable occurs, an alarm is given out in time to reduce power transmission and transformation accidents. Compared with the prior art, the warning device has the advantages of low false alarm rate, rapid response and accurate localization region.