Power tunnel well lid abnormal movement monitoring device

Abstract

The invention discloses an electric power tunnel well lid abnormal movement monitoring device. The device comprises a working device and a fixing device; the working device comprises a vibration buffer spring (1), wherein the vibration buffer spring (1) connected with a well lid in an elastic pressing mode serves as a buffer unit to transmit a well lid abnormal movement signal to a vibration sensor (2); a vibration sensor (2) which is used for receiving a manhole cover abnormal-motion signal, converting the manhole cover abnormal-motion signal into an analog electric signal and transmitting the analog electric signal to the signal encoding processor (3), and the signal encoding processor (3) is used for converting an analog electric signal into a digital signal and transmitting the digitalsignal to the signal wireless transmitter (4); a signal wireless transmitter (4) which is used for transmitting the digital signal to a background workstation and a mobile phone APP (Application). The fixing device comprises a fixed plate and a metal wire which are fixed on the side wall of the cable well through hexagon bolts. The real-time state of the cable tunnel well lid can be mastered, andthe behaviors that the well lid is damaged and lost, a tunnel illegally enters construction, and a cable connector ground wire in the tunnel is stolen are avoided.

Description

technical field [0001] The invention relates to the field of cable operation and maintenance, in particular to a device for monitoring abnormal movement of a manhole cover of an electric tunnel. Background technique [0002] With the increasing number of high-voltage cable lines in urban power grids, cables have gradually become an important part of urban transmission grids. Followed by heavy cable operation and maintenance tasks, the "six prevention" work of high-voltage cables to prevent external breakage, fire prevention, waterproof, overheating, abnormal auxiliary equipment, and harmful gases is the focus of daily operation and maintenance. Anti-breakage work is the top priority. The cable manhole cover must be opened to enter the cable tunnel, and the operation and maintenance personnel must know the change of the manhole cover. [0003] Existing technologies include smart manhole covers and card machines. The smart manhole cover is a method of online monitoring. It ...

AI Technical Summary

Problems solved by technology

The disadvantage of card machine technology is that although photos of the scene can be collected, it is easy to generate a large number of false positive photos in areas with complex scene conditions, and it is easy to have no photos submitted at night

Moreover, the installation of the card machine needs to be installed at a high place near the tunnel manhole cover, and some cable tunnels do not meet the installation conditions

Images