A Wireless Sensor Monitoring Node Based on Automatic Tracking Solar-Powered Panel for Paddy Field Environment

In order to realize the collection, management, visualization, and uploading of real-time information in the paddy field, an information monitoring node based on automatic tracking solar-powered panel is presented in this paper. First, the node consists of information collecting sensors, STM32 MCU, LCD, GPRS module, automatic tracking solar-powered module, and monitoring interface. Second, data gathered from sensors can be displayed on the LCD and sent to the host computer interface. Moreover, host computer can also save the data packages to management server for examination and analysis. Finally, in the practical test, data are gathered every 2 h. At nontest time, the node works in low-power mode to achieve rational use of electric energy. The results of this experiment show that the node can achieve an accurate transmission and display of data, and the power supply system can meet the demand for electricity in continuous rainy days.