DESIGN OF WIRELESS GRAIN QUANTITY MONITORING SYSTEM BASED ON ZIGBEE AND GPRS

We arranged pressure sensors on the bottom and the sidewall of the barn to fit the real-time grain quantity in the barn through the pressure value.The paper proposed a design scheme of a remote grain situation data wireless transmission system with the combination of Zigbee short-distance wireless communication technique and GPRS,completed the hardware platform design of data collection nodes and network coordination nodes in the sensor network,and developed a communication protocol and software suitable for the grain situation data real-time transmission based on the platform.Tests showed that the system was feasible to measure the grain quantity in the barn,and the measurement error was not less than 5%.