为推进我国北方日光温室的现代化管理,使设施园艺朝着高产、高效的生产模式发展,建立了基于ZigBee的日光温室智能调控系统.针对温室设施农业控制的需要,该系统以Jennic 公司生产的无线微控制器JN5139为控制核心,整个无线传感器网络由传感器监测节点和ZigBee无线智能终端构成.系统完成了对环境因子(空气温湿度、光照强度、CO2浓度、土壤pH值)的实时采集、监测、显示、告警与控制,并提供温室中环境因子的历史数据.为使结果更精准,对节点上的各传感器数据序列进行三次指数平滑,将平滑后的数据发送至协调器,并对数据进行线性回归分析.系统基本满足无线化、智能化、精准化的现代设施园艺的需求.实际运行结果表明,该温室智能调控系统具有运行稳定、操作简单的特点,其测量结果准确,能有效地提高日光温室管理效率,具有良好应用前景.%In order to promote the modern management of greenhouse in North China, and to make the facility horticulture develop towards high yield and high efficiency, the intelligent control system was established based on ZigBee.To meet the needs of the control of agricultural greenhouse facilities, the system was produced by Jennic wireless microcontroller JN5139 as the control core, and the wireless sensor network was composed of sensor nodes and ZigBee wireless intelligent terminal.The system realized the real-time collection, monitoring, display, warning and control of the greenhouse environmental factors (including air temperature, humidity, light intensity, CO2 concentration and soil pH value), and could provide the historical data of greenhouse environmental factors.In order to make the results more accurate, the sensor data sequence was smoothed three times on the nodes, then the smoothed data was sent to the gateway, and the linear regression analysis of data were carried out.The system basically met the needs of wireless, intelligent and precise modern facilities horticulture.The results showed that the greenhouse intelligent control system had the characteristics of stable and simple operation, and the results were accurate, which could effectively improve the management efficiency of the solar greenhouse, and had a good application prospect.
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