For there are some defects like complex construction, too many lines and difficult maintenance when using a cable monitoring system in greenhouse, a design of low—power greenhouse monitoring system based on ZigBee wireless sensor network technology is proposed. Through the energy consumption analysis of the various parts of the system, the sensor nodes are designed by using a kind of energy saving strategy: using low—power RF chip and smart switch chips on hardware designing, applying event —driven method to software writing to prolong their sleeping time. This system is not only able to collect the greenhouse parameters such as illumination, air temperature and humidity, soil moisture and carbon dioxide concentration precisely, but also low power consuming, low—cost and easy to expand. Te6t results verified the feasibility of the solution.%针对传统温室大棚有线监测系统存在施工复杂、线路多和维护难等缺陷,提出了一种基于ZigBee无线传感网络技术的低功耗温室监测系统的设计方案；通过对系统各部分的能耗进行分析,结合实际情况对传感器节点采用低功耗设计策略；硬件设计上采用低功耗射频芯片和智能开关芯片,软件编写上采用事件驱动方法延长节点休眠时间；该系统能够准确采集温室内光照度、空气温湿度、土壤水分和二氧化碳浓度等环境信息,并具有低功耗、低成本和易扩展等特点；测试结果验证了该方案的可行性.
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