As collecting water quality monitoring data of aquaculture in wireless sensor networks（WSNs）

working hours of the single node determine the life of the entire network.A theory based on fuzzy clustering of solar maximum power point tracking method is presented

and environment-friendly multi-channel power intelligent control system combined with solar power and Lithium batteries is designed.The innovation of the system is able to selects the access to power supply automatically

according to changing circumstances in the power supply

and can export multi-path stable voltage.It provides Li-ion battery charge management that greatly extends the maximum work time of WSNs.