Plant irrigation system based on ZigBee

The invention discloses a plant irrigation system based on ZigBee. The system comprises a spray-head module, a wireless communication module, a storage module, a bump, a reservoir and a control module; the spray-head module comprises a plurality of spray-head units which are evenly distributed; the wireless communication module is used for communication between the control module and the spray-head units; the spray-head units comprise spray-heads, micro-processors and soil humidity sensors; the spray-heads are connected with the output end of the pump through pipelines; the input end of the pump is connected with the reservoir through a pipeline. During work, the micro-processors transmit soil humidity and the numbers of the spray-head units to the control module, and the control module sends corresponding spray-head opening or spray-head closing instructions to the spray-head units according to target soil humidity which corresponds to the spray-head units and is stored in the storagemodule. The system is si