Design of Mobile Meteorological Monitor Based on Wireless Sensor Network

In order to monitor meteorological parameters such as temperature, humidity, pressure, wind speed and wind direction, a meteorological monitor system of wireless sensor networks was analyzed, which was based on the combination of Zigbee and GPRS communication technology. Short-distance data transmission was achieved through sensors local-area network completed by Zigbee technology, and long-distance data communication was achieved through GPRS technology. Terminal devices distributed in environment collected real-time data gained by sensors, and sent the data to the base station via Zigbee communication technology. The data was received and processed by Mobile base station and base stations choose to use GPRS or Ethernet technology access to Internet and transferred data to the monitoring center. Experimental results show that: temperature accuracy can reach 0.2°C, humidity accuracy can achieve 3.0%RH, and the pressure accuracy is up to 1.5mbar. The Meteorological data is real-time transmitted and the system solves the problem of data loss.