Abstract:

In order to dynamically real-time monitor the agricultural greenhouse temperature effectively, it proposes to design a greenhouse temperature control system based on Zigbee wireless network and Linux embedded operating system. The system designed with C/S structure, is composed of lower computer and upper computer in two parts. The lower computer system including temperature acquisition nodes and aggregation nodes: the temperature acquisition nodes complete function of temperature information collection and wireless data transmission in different locations inside the greenhouse, aggregation nodes in addition to completing the data gathering tasks can turn on the fans or heating systems according to feedback control commands from upper computer. The server-side upper computer system stores and analyzes data, and real-time controls lower computer system according to its analysis results. It has proved in practice that the system can accurately monitor the greenhouse temperature, effectively reduce wiring costs and it is helpful to reduce labor costs and increase crop yields.