Coal mine monitoring system power supply management system and method

Abstract

The invention provides a coal mine monitoring system power supply management system and method. The coal mine monitoring system power supply management system comprises a power resistance voltage division circuit, a single-chip microcomputer acquisition circuit and a single-chip microcomputer processing circuit. The AC AC127V-AC660V voltage detection method provided by the invention has the advantages that the cost is low, the reliability is high, and the fluctuation of a power grid can be effectively inhibited. The output current detection method of the multi-channel intrinsic safety power supply has the advantages of high precision, low cost, adjustable linearity, zero point and the like. The circuit and the algorithm for detecting whether the charge capacity of the battery meets the requirement of 4 hours can support the remote discharge of the battery in the presence of alternating current, inform maintenance personnel whether to replace the battery or not in a result analysis mode, can effectively avoid errors caused by human factors, and effectively save the labor cost.

Description

technical field [0001] The invention relates to a monitoring system technology, in particular to a coal mine monitoring system power management system and method. Background technique [0002] The power supply is one of the key equipment in the coal mine monitoring system, and the reliable operation of the power supply determines the stability of the powered equipment. In the past, the intrinsically safe power supply of the coal mine monitoring system only required the realization of intrinsically safe power supply. With the upgrading and transformation of the coal mine monitoring system, relevant equipment was required to be digitalized. As an important part of the monitoring system, the power supply also required digital transmission and management. The so-called realization of power supply management requires the underlying hardware of the power supply to support the judgment and diagnosis of relevant information, and also requires system protocols and software to support...

AI Technical Summary

Problems solved by technology

For the AC voltage V, it is impossible to diagnose whether it is over the limit, it is impossible to judge whether the load of the intrinsically safe output is over the limit, it is impossible to judge whether the battery capacity supports discharge for 4 hours, and it is impossible to prevent the long-term floating charge of the battery.

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