KJ1296 mine power supply monitoring system is developed to adapt to 10KV and below substation power safety monitoring system in coal mine; Based on the characteristics of coal mine power supply and distribution system and the mature technology of ground power distribution management system, it adopts the latest technology of ground power system automation, embedded system technology, distributed network technology, etc., and integrates my company's more than 20 years of research experience in coal mine power supply and distribution system, and independently develops coal mine professional power monitoring system. It is an integrated power station automation system that integrates the functions of measurement, protection, control and communication. It realizes real-time power data acquisition, data recording, fault diagnosis, fault warning, fault recording and so on for underground high and low voltage power supply equipment. Thus, the ground dispatching center can realize the five remote functions of telemetry, remote communication, remote adjustment, remote viewing and remote control of the underground high and low voltage power supply equipment, which significantly improves the stability and reliability of the mine power supply system, effectively reduces the occurrence of unplanned power failure accidents in the mine, and can generate a variety of records and statistical reports.

The system is suitable for underground coal mine with explosive dangerous gas and coal dust, and can be used in cable trench, high voltage cable, transmission belt, coal transport trestle, coal storage yard, dangerous goods warehouse and other occasions that need space continuous temperature measurement. It is an ideal upgrade replacement for traditional temperature measurement methods (temperature sensing cable, temperature measuring cable). This system integrates computer, optical fiber communication, optical fiber sensing, photoelectric control and other technologies in one. It is a system that uses the temperature effect of Raman backscatter signal generated by laser in the process of optical fiber transmission, combined with the principle of optical time domain reflectometry to obtain spatial temperature distribution information and spatial positioning information. As a temperature signal sensing and transmission medium, optical fiber has the advantages of intrinsically safe, corrosion resistant, easy to install wiring, free from electromagnetic interference, and can realize long-distance distribution measurement.

Coal mine integrated automation management and control platform is the application of automation technology, computer software technology and communication technology to the coal mine site to achieve comprehensive monitoring system; The system platform is based on the premise of "centralized storage application, distributed management, data unification and permission sharing". The overall structure of the system adopts hierarchical logic design and is divided into three layers from the bottom up: device layer, transmission layer, and information layer. Based on the flexible B/S and C/S interfaces, the coal mine is fully automated and intelligent in the production links of "mining, digging, transportation, wind, water and electricity", so that the production and management of the whole mine is more scientific and efficient; According to the hardware platform and network system, the software "Visual information system for integrated management of safety production" is used to build a unified software integration platform. Through the company LAN and the man-machine interface of the system, the information of engineering, production, safety and equipment operation status can be comprehensively queried, which provides an advanced information support platform for mine safety and production management.

At present, in the underground high-voltage power supply system of coal mine, the distance of the power supply line is short, and the short-circuit protection time of the off-line switch of the ground substation is small. If a short-circuit fault occurs, the multi-stage switch is often tripped at the same time, which leads to a large area of underground power outage and seriously affects the safety production of the mine.