中文摘要：

针对大田应用中传感器多样、低功耗、低成本、通信可靠等要求，设计了一款无线传感器网络节点。节点以MSP430F1611单片机为核心，Si4432作为无线通信模块，采用太阳能板和可充电式锂电池互补供电的方式提供电源。同时，选用了扰动观察法作为太阳能最大功率跟踪算法（MPPT算法），采用了周期性采样策略，并对相邻节点数据进行组合的数据融合方法。本文测试并分析了节点的功耗、通信距离与丢包率之间的关系及太阳能充电时间等。结果表明，该设计具有通用性强、功耗低、充电快、通信可靠等特点，能够满足农业大田信息采集的应用要求。

英文摘要：

A type of wireless sensor network （WSN） was designed for field information collection to solve the existing problems as battery replacement difficulties and inconvenience. The node use MSP430F1611 as the processing core, Si4432 as wireless communication module, and using solar panels and rechargeable lithium battery as the power supply way. The node program were designed based on the hardware platform, choose the disturbance observation as the sun MPPT algorithm and adopted adjacent node data combination method to deal with data. In this paper, test the node pow- er, solar charging time, and the relationship between communication distance and packet loss rate and the relationship. The results show that the design can satisfy the application requirement of field information collection, can make the system work stability and in low power consumption.