By adding the gas concentration sensor, pressure sensor, transformer, relay, gravity sensor and other field equipment registration to the alarm linkage system, the function of unified management of field sensors, PLC and other equipment can be realized. According to the business scenario, the collected data is monitored, the equipment alarm rules are set, the alarm is triggered when the collected data exceeds the threshold value, and the linkage message push, sound and light alarm and field equipment are disposed in time. At the same time, the collected equipment data can be used to trigger the algorithm start and stop in specific scenes and dangerous sources, so as to realize automatic, intelligent and unified equipment management and alarm linkage.