Online switch cabinet temperature monitoring system with NTC temperature measuring circuit

The invention discloses an online switch cabinet temperature monitoring system with an NTC temperature measuring circuit. The monitoring system comprises a signal transmitting unit, a data collectionand transmission unit and a processing and diagnosis unit. The signal transmitting unit includes a wireless temperature module. The data collection and transmission unit includes a signal processing module, a data acquisition module and a signal transmission module. The processing and diagnosis unit includes a data processing module and a fault diagnosis module. The wireless temperature module isdirectly installed at a temperature measurement point and thus the temperature change of an electrical node can be reflected quickly and effectively, so that the timeliness and accuracy of the detection are improved; the wireless temperature module and the data collection and transmission unit carry out wireless communication, thereby avoiding the wiring and potential safety hazard of wired connection and solving a problem