Anti-theft monitoring apparatus for power distribution circuit

The utility model discloses an anti-theft monitor of distribution lines, comprising a central processing unit (CPU), a tri-phase power state collection circuit, a power circuit, a GSM mobile phone, a mobile phone lighting circuit, a serial line interface level conversion circuit connecting the CPU and the mobile phone. The tri-phase power state collection circuit comprises a voltage division circuit, a rectifier filtering circuit and a photoisolating signal conversion circuit. The power circuit comprises an alternating current power circuit of 220 volt and a spare battery circuit, with the alternating current power circuit of 220 volt comprising a transformer reducing circuit, a rectifier filtering circuit and a voltage stabilizing circuit and the spare battery circuit comprising a spare battery and a throw-cut switch circuit of the spare battery. Compared with the prior art, the utility model has the following advantages namely: (1) the utility model is not affected by such factors as environment, distance, weather and the like, alarms timely and has high reliability; (2) it is unnecessary for the personnel to stay for 24 hours in front of the monitor. As long as a mobile phone is in hand, information can be received at any time and at any place, greatly reducing workload for the personnel and rendering a stronger anti-theft function; (3) the utility model is convenient for the extension of functions.