Temperature abnormality alarm system in power distribution cabinet

The invention discloses a temperature abnormality alarm system in a power distribution cabinet. The temperature abnormality alarm system comprises an upper computer monitoring center, a switch, a plurality of control units and a plurality of infrared cameras, and is structurally characterized in that each control unit comprises a microprocessor, an infrared detector, an Ethernet control chip, an upper computer monitoring alarm center and a power source, wherein the microprocessor is connected with the infrared detector and the Ethernet control chip, the Ethernet control chip is connected with the upper computer monitoring alarm center, the power source powers the microprocessor, the microprocessor is connected with a memory module SDRAM (synchronous dynamic random access memory); the upper computer monitoring center is connected with the switch, the switch is connected with the control units via the Ethernet, and the control units are correspondingly connected with the infrared cameras. The temperature abnormality alarm system in the power distribution cabinet has the advantages of low power consumption and high reliability, is of great engineering significance and has a promising development prospect.