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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。
Aiming at the defects of traditional monitoring system of greenhouse construction, such as complex construction, many lines and difficulties of maintenance, a design scheme of low power consumption greenhouse monitoring system based on ZigBee wireless sensor network technology is proposed. By analyzing the energy consumption of each part of the system, Analyze and combine with the actual situation to adopt low power consumption design strategy for sensor nodes; adopt low power consumption RF chip and intelligent switch chip in hardware design, and use event-driven method to prolong dormancy time of the software; the system can accurately collect the illumination, Air temperature and humidity, soil moisture and carbon dioxide concentration and other environmental information, and has the characteristics of low power consumption, low cost and easy expansion; test results verify the feasibility of the program.