无线传感网络易受延时、丢包、干扰等因素的影响。煤矿井下环境非常复杂,使得矿井安全监控系统采集的井下环境参数在矿井下的传输受到不确定干扰的影响。针对干扰的不确定性,提出非线性PID控制策略控制的无线传感网络应用于矿井安全监控系统。在Matlab/Simulink仿真环境下建立了无线传感网络仿真模型,分别对其用常规PID控制和非线性PID控制。仿真结果表明非线性PID控制要比常规PID控制对无线传感网络干扰控制效果更好。
Wireless sensor networks are susceptible to delay,packet loss,interference and other factors. The environment of coal mine is very complex,which makes the data transmission of underground environment parameters collected by the mine safety monitoring system to be impacted by uncertain interference. Aiming at the disturbance uncertainty,a nonlinear PID con-trol strategy to control the wireless sensor networks which is applied to the coal mine safety monitoring system is proposed. The structure of mine safety monitoring system based on a wireless sensor network is introduced. The simulation model of the wire-less sensor network is set up in the Matlab/Simulink simulation environment. The simulation results show that the nonlinear PID control to the wireless sensor network is better than the conventional PID control.