基于模糊PID控制的家居照明环境智能调节方法

Intelligent Adjustment Method of Home Lighting Environment Based on Fuzzy PID Control

摘要: 本研究融合了神经网络和模糊推理技术，提出了一种家居照明智能调节方案。该方法以家庭各区域的活动时间为输入变量，根据活动时间长短来识别不同的生活场景，并以此为规则推导出目标场景的特征值。灯具控制模型采用三层前馈型BP神经网络，包括输入层、一个隐含层(13个神经元)和输出层，利用正向传播和误差逆向传播优化模型参数。此外，引入了模糊PID控制技术实现了对灯具更精确的调光控制。经仿真验证，BP神经网络模型拟合优度好、泛化能力强，其预测得到的调光值可直接用于灯具调控。而模糊PID控制算法与传统PID控制相比，能够实现更加精确和稳定的控制效果，与其他主流控制方法相比更适用于家居照明。

Abstract: In this paper, an intelligent adjustment scheme for home lighting is proposed by combining neural network and fuzzy reasoning technology. The method takes the activity time of each area of the family as the input variable, identifies different life scenes according to the activity time, and de-duces the characteristic value of the target scene according to the rule. The lamp control model adopts three-layer feedforward BP neural network, including input layer, a hidden layer (13 neu-rons) and output layer. Forward propagation and error reverse propagation are used to optimize the model parameters. In addition, the fuzzy PID control technology is introduced to achieve more accurate dimming control of the luminaire. The simulation results show that BP neural network model has good fit and generalization ability, and the dimming value predicted by BP neural net-work model can be directly used for luminaire control. Compared with traditional PID control, fuzzy PID control algorithm can achieve more accurate and stable control effect, and is more suitable for home lighting compared with other mainstream control methods.