摘要
为了克服传统的室内灯光亮度感应外界环境光照强度的时间滞后性且不精确性,分别对室内环境光照强度和室内灯光亮度进行了分析,提出了时间最优控制和单神经元自适应PID先进控制算法,使得灯光强度自适应外界环境光照度快速且准确的达到人们想要的效果。采用改进后的Bang-Bang控制,使被控对象初始值以不同的误差范围根据光照亮度设定值的变化而改变;再根据单神经元自适应PID通过调节参数而更加精确的调节PWM占空比的输出,从而有效的调节光照亮度。实验结果表明:从时间效应和光亮强度上来看,该控制算法有一定的改善效果,对于智能灯光要求比较高的大型场所有一定的适用性。
In order to overcome the time lag and inaccurate of environmental illumination intensity which inducted by traditional indoor lamplight brightness, the indoor environmental illumination intensity and light intensity were analyzed separately, the advanced control algorithm which used time optimal control and single neuron adaptive PID is proposed in this paper, it can adapt to the environment light intensity fast and correctly. Firstly, the improved bang-bang control is used to control the initial value of the controlled object, which can change by the different error range in accordance with the change of the brightness setting value; Secondly, the output of PWM duty ratio is regulated precisely by adjusting the parameters,which is based on the single neuron adaptive PID, and can regulate effectively the brightness of the illumination. The results are summarized as： the control algorithm has some improvement effect from the time effect and the intensity of light; it has certain applicability for the smart lighting requirements of large field.
出处
《电子设计工程》
2016年第2期9-11,14,共4页
Electronic Design Engineering
基金
国家青年自然科学基金资助(61201407
6203374)
中央高校基本科研业务费的资助(310832151093
2013G1321044)
