Electric vehicle charging monitoring system based on ZigBee network

The utility model provides an electric vehicle charging monitoring system based on a ZigBee network. The charging detection system comprises a PC, a ZigBee coordinator, a ZigBee terminal node and a data acquisition device, and the PC is connected with the ZigBee coordinator through an RS232 serial port and used for data transmission; wherein the ZigBee coordinator is wirelessly connected with a plurality of ZigBee terminal nodes through a ZigBee router, and each ZigBee terminal node is connected with a data acquisition device; the data acquisition device comprises an electric vehicle charger,a power supply unit, a data acquisition unit and an on-off unit. The power supply unit comprises a first voltage stabilization chip and a second voltage stabilization chip. The data acquisition unit comprises a current sensor, a voltage comparator, a single-chip microcomputer and a temperature sensor. The on-off unit comprises a photoelectric coupler and a relay; the beneficial effects of the utility model are that the de