摘要
无线传感器和执行器网络通过无线网络(ZigBee)将传感器和执行器与控制器相连,完成分布式传感和执行任务。针对无线网络传输和被控对象延时的不良影响,首先详细介绍了基于TrueTime 2.0的无线网络控制系统在Windows 7和Matlab R2010b环境下的搭建,给出了系统的仿真模型。对控制器节点分别采用常规PID控制和模糊PID控制算法进行仿真研究。仿真结果表明,对于存在延时环节的无线网络控制系统,模糊PID控制可以取得较好的控制效果,系统鲁棒性较强。该研究对物联网智能家居系统的设计具有一定参考价值。
Wireless sensor and actuator network control system（WSANCS）, based on distributed control sys- tems of wireless network（ ZigBee）, achieves distributed sensing and executing tasks. Aiming at the bad influ- ences of wireless network transmission and the delay of the controlled plant, firstly, the construction of WSANCS based on TrueTime toolbox under Windows 7 and Matlab R2010b is introduced and the simulation model is given. Then, performances of WSANCS under conventional PID and fuzzy PID algorithms are com- pared, which shows that the fuzzy P1D control algorithm can obtain better control effects and higher robustness in the control system which has a time-delay object. This research has some reference values for the design of smart home system based on Intemet of
出处
《测控技术》
CSCD
北大核心
2013年第6期69-71,75,共4页
Measurement & Control Technology
基金
2012年度苏州市科技支撑计划项目(SG201256)
