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作 者:束慧[1]
机构地区:[1]南通职业大学,江苏南通226007
出 处:《节水灌溉》2014年第11期73-76,共4页Water Saving Irrigation
基 金:国家自然科学基金(61004053);南通市科技项目(BK2012033)
摘 要:针对温室范围广、监控点多、布线困难、且具有非线性、大延时、控制模型难以确定等特性,以CC2530为核心设计了无线传感器节点、汇聚节点及智能控制节点,实现对温湿度、光照等参数的实时采集,以Zigbee技术实现各无线传感器节点之间的数据传输;以GPRS技术实现汇聚节点与监控平台的对接,采用带Smith预估器的模糊PID控制算法实现对遮阳网、风机、湿帘、均热扇等设备的控制,经现场长时间运行表明,整个系统经济实用,控制精度高,运行稳定可靠,满足大棚生产要求。According to the characteristics of greenhouse ,including wide scope ,many monitoring point ,difficult wiring ,nonlinear , large time delay and difficult to determine control model ,wireless sensor node ,gathering node and intelligent control node are de‐signed by using CC2530 to real-time collect parameters ,such as temperature and humidity ,illumination ,and so on .Zigbee technology is used to realize the data transmission between wireless sensor nodes .GPRS technology is used to realize data transmission between nodes and monitoring platform .Smith pre-estimated fuzzy PID control algorithm is used to control wet curtain ,soaking sun-shade net ,blower fan and other equipment using .Field long running shows that the system is economical and practical ,has high control precision ,stable and reliable running ,and can meet the requirement of greenhouse production .
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