Manhole cover presence monitoring system and method based on nonlinear magnetic sensor

Abstract

The invention discloses a manhole cover in-position monitoring system based on a nonlinear magnetic sensor, which mainly includes a magnet coil, a manhole cover monitor, and a cloud platform; the magnet coil is evenly distributed on the bottom surface of the manhole cover; the manhole cover monitor mainly includes a main controller , a magnetic sensor connected to the input end of the main controller, and a cellular communication module connected to the output end of the main controller; the cloud platform communicates with the cellular communication module. Also disclosed is a manhole cover in-position monitoring method based on a nonlinear magnetic sensor. The invention designs a comprehensive sensor monitoring device suitable for various manhole covers, which is not easy to affect the operation and is easy to install. It uses a non-linear magnetic sensor and uses a cloud platform for real-time monitoring. Through data changes, the point image is combined with monitoring. Bit algorithm, high reliability, can greatly reduce the operation and maintenance and use costs of manhole cover monitoring and monitoring.

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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