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[目的]研究将无线传感器网络应用于农田土壤水分监测,探讨解决实际监测中采样率低、成本高、及实时性差等问题的方法。[方法]通过对无线传感器网络体系结构、网络节点硬件设计以及软件操作系统结构的原理和相应参数分析,说明基于无线传感器的农田土壤水分监测系统的特点,及利用该系统的优点。[结果]传感器节点可正确采集并传输土壤含水率,实现稳定的土壤水分数据传输,说明无线传感器网络适合农田土壤水分的实时监测。[结论]该研究表明无线传感器网络在农业发展中具有广阔的应用前景。
[Objective] The research aimed to study how to apply WSN to soil moisture monitoring in farmland and to explore methods to solve the problems of low sampling rate, high cost and poor real-time performance in practical monitoring. [Method] The characteristics of the farmland soil moisture monitoring system based on wireless sensor and the advantages of using this system were described through the principle and corresponding parameter analysis of the wireless sensor network architecture, network node hardware design and software operating system structure. [Result] The sensor node could collect and transmit the soil moisture content correctly and achieve the stable soil moisture data transmission. It shows that the wireless sensor network is suitable for the real-time monitoring of farmland soil moisture. [Conclusion] This research shows that WSN has broad application prospects in agricultural development.