DC power supply monitoring equipment based on PLC

Abstract

The invention discloses a DC power supply monitoring equipment based on a PLC, which comprises a bearing track, a guide track, a first monitoring device, monitoring position adjusting assemblies, second monitoring devices and the PLC, wherein the bearing track and the guide track are symmetrically arranged up and down and extend in the distribution direction of a DC power supply in a horizontal posture; the first monitoring device is fixed at the top of the guide track and is used for monitoring in a range a; two monitoring position adjusting assemblies are movably arranged between the bearing track and the guide track, and second monitoring devices are arranged at the adjusting ends of the monitoring position adjusting assemblies. The second monitoring devices can perform monitoring in a b range; moreover, the first monitoring device and the second monitoring device are uniformly controlled by the PLC, and when the first monitoring device monitors that the DC power supply is abnormal, the PLC controls the monitoring position adjusting assemblies to drive the second monitoring devices to move to an abnormal position, and re-confirmation is carried out.

Description

technical field [0001] The invention relates to the technical field of DC power monitoring, in particular to a PLC-based DC power monitoring device. Background technique [0002] In the power system, the DC power supply used by electronic equipment is usually obtained by rectifying, filtering and stabilizing the AC power provided by the power grid. In order to use electricity for related equipment, a relatively reliable DC power supply is required. Therefore, in power plants and other locations, it is necessary to set up an independent DC power supply battery combination and charging device. The normal operation of this type of device needs to be monitored by related monitoring devices. At present, the monitoring methods of DC power supply mostly use the circuit form for monitoring. However, the reliability and stability of circuit monitoring General (including complex programs, poor anti-interference, high false alarm rate, etc.), and a single monitoring method, when a larg...

AI Technical Summary

Problems solved by technology

[0002] In the power system, the DC power supply used by electronic equipment is usually obtained by rectifying, filtering and stabilizing the AC power provided by the power grid. In order to use electricity for related equipment, a relatively reliable DC power supply is required. Therefore, in power plants and other locations, it is necessary to set up an independent DC power supply battery combination and charging device. The normal operation of this type of device needs to be monitored by related monitoring devices. At present, the monitoring methods of DC power supply mostly use the circuit form for monitoring. However, the reliability and stability of circuit monitoring General (including complex programs, poor anti-interference, high false alarm rate, etc.), and a single monitoring method, when a large problem occurs, it cannot be solved in time, and more serious problems are likely to occur

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