The Key Technology Research And Application Of Intelligent Precision Agriculture System Based On ZigBee

Since ancient China is a large agricultural country, but the difference in Chinese various regions, geographical environment and climate, the traditional agriculture has been unable to satisfy production, now all of the world trend to transform traditional agriculture to modern agriculture. ZigBee technology as a new revolution of information technology, make the data collection more wider and more reliable, make the data rates more higher, and make the decision analysis more accurate. Besides ZigBee is also good for the transformation of traditional agriculture to precision agriculture and the realization of agricultural modernization.This paper mainly research the national ecological agriculture park, and I design a system based on ZigBee wireless network technology and GPRS network used in monitor precision agriculture. This system can collect the information of soil moisture, and the data should be process. Then the data can be transmitted to the control center by the GPRS network. The control center analysis the data which has been processed and make a decision. The system will be monitoring in real-time, accuracy and reliability. The main work of this paper is as follows:1. The deployment of ZigBee wireless sensor network nodesThe reasonable deployment of ZigBee wireless sensor network nodes can collect data more effectively, reduce energy consumption, reduce information redundancy, and prolong the life of the system. First we need to divide the region, then we should deploy ZigBee wireless sensor network nodes in each area. We should select the appropriate node perception model and node deployment strategy to deploy ZigBee network nodes according to the growth of crops, and then collect the data.2.Hardware design of ZigBee wireless sensor network nodesHardware design of ZigBee node is constructed by the ARM9microprocessor, Linux operating system,CC2520ZigBee RF receiver module varieties of temperature, humidity, light intensity and rainfall sensor. And the ZigBee network nodes can collect and transmit data.3. Data fusion and state analysisEach monitoring area of the system has a large number of sensors, each sensor node has to transmit the collected data to the sink node separately. This will be result in a large number of redundant information in system, communication bandwidth wasting and large energy loss. At the same time, it also can reduce the collection efficiency and accuracy. So the data fusion processing is essential, the processed data will be more real-time and more accurate. Then state analysis would monitor the system more better.4. Identification and monitoring of the irrigation flowmeterAfter the analysis of the state, the system can collect the soil moisture information of the park. And then you can know how wet and dry of the soil clearly. At this time we can identify and monitor irrigation systems to control irrigation or not and how much should be irrigating, then we can ensure the suitable soil condition for crop growth.Finally, the paper describes how to set up the experimental platform, the system can realize data acquisition, transmission, display and analysis by the experimental test. The control center would know the soil moisture information clearly by state analysis, and it can monitor and control of irrigation system more better.