System for monitoring field working condition of switch cabinet

Abstract

The invention relates to a monitoring system, wherein a system for monitoring a field working condition of a switch cabinet comprises an MCU (microprogrammed control unit) controlling unit, a CAN (controller area network) bus, a CAN controller, an Ethernet controlling module, a level conversion circuit, a running state monitoring circuit and a sensor, wherein the CAN bus comprises a CANL connection line and a CANH connection line; the CAN bus is connected with the sensor, the running state monitoring circuit, the level conversion circuit and the CAN controller through CANL and CANH two connection lines respectively; the CAN controller is connected with the MCU controlling unit through an I / O interface; the MCU controlling unit is connected with the Ethernet controlling module through the I / O interface; the Ethernet controlling module is connected with a remote client through an Ethernet network; and the level conversion circuit is connected with an upper computer. The system is added with a plurality of temperature and humidity monitoring points, thereby being more precise to monitor security of the switch cabinet. Meanwhile, the monitoring system provided by the invention is added with a network part to network the information, thereby realizing remote monitor of the information.

Description

technical field [0001] The invention relates to a monitoring system, more specifically, to a monitoring system for on-site working status of a switchgear. Background technique [0002] Since the switchgear is greatly affected by the external environment, it is necessary to monitor its various factors. However, the sensors and other components used in some monitoring are scattered, so it is a difficult problem to be solved to collect the data they monitor. The present invention uses the CAN bus to connect all monitoring points. CAN bus is a multi-master bus, and nodes can also communicate with each other. Using optical cable as the material of the bus can make the communication rate reach 1Mbps. In addition, the CAN bus does not limit the number of nodes. If there is a need for new data sampling points on site, monitoring points can be added without destroying the original structure. According to these characteristics of CAN bus, it can meet the monitoring requirements ver...

AI Technical Summary

Problems solved by technology

However, some monitoring sensors and other components are scattered, so it is a difficult problem to be solved to collect the data they monitor

Images