Well lid in-place monitoring system and method based on nonlinear magnetic sensor

Abstract

The invention discloses a manhole cover in-place monitoring system based on a nonlinear magnetic sensor. The manhole cover in-place monitoring system mainly comprises magnet coils, a manhole cover monitor and a cloud platform, the magnet coils are uniformly distributed on the bottom surface of the manhole cover; the manhole cover monitor mainly comprises a main controller, a magnetic sensor connected with the input end of the main controller and a cellular communication module connected with the output end of the main controller. The cloud platform is in communication connection with the cellular communication module. The invention further discloses a manhole cover in-place monitoring method based on the nonlinear magnetic sensor suitable for various manhole covers. The manhole cover monitoring system is simple in structure and convenient to install, operation is not prone to being affected, real-time monitoring is conducted through the non-linearly-changing magnetic sensor and the cloud platform, point location portraying is conducted through data changes in combination with the monitoring in-place algorithm, reliability is high, and the operation, maintenance and use cost of manhole cover monitoring can be greatly reduced.

Description

technical field [0001] The invention relates to the field of well cover monitoring, in particular to a well cover presence monitoring system based on a nonlinear magnetic sensor and a method thereof. Background technique [0002] With the advancement of urban intelligence, all kinds of overhead cables and optical cables in China have been well rectified, and underground pipe galleries and underground manhole covers are widely used. This has also brought a lot of problems, such as manhole cover shifting, being stolen or even partially destroyed, etc., which directly or indirectly caused casualties, property theft or destruction and the like. [0003] Therefore, it is urgent to design a solution suitable for manhole cover on-site monitoring, and the current on-site monitoring is mostly carried out by travel switches or point-position door magnets. It will affect the entry and exit and scratch the body; some sensors are installed under the well cover, which will also be affect...

AI Technical Summary

Problems solved by technology

This has also brought about many problems, such as manhole covers being displaced, stolen or even partially destroyed, etc., which directly or indirectly caused casualties, property theft or damage, etc.

[0003] Therefore, it is urgent to design a solution suitable for manhole cover on-site monitoring, and the current on-site monitoring is mostly carried out by travel switches or point-position door magnets. It will affect the entry and exit and scratch the body; some sensors are installed under the manhole cover, which will also be affected when the cover is opened and dragged, and it may even fall off or be crushed easily.

During construction and maintenance, the workers’ dragging actions are relatively rough. If the monitoring terminal is used to mount the manhole cover, it is easy to fall off or be damaged during the dragging process.

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