路灯不及时关灯,会造成浪费。我利用555时基集成电路制成手控、光控两用路灯控制器,成本仅需增加20余元,即可达到按光线强弱自动开关路灯的目的,节能显著。现介绍如下: 1.工作原理手控、光控电气原理如附图所示。当开关S处于自动状态时,受光控制;当S处于手动状态时,路灯受起动按钮SB2和停止按钮SB1控制。K为接触器,控 Lights do not turn off the lights in time, will result in waste. I use 555 time base integrated circuits made of manual control, light control dual-use street lamp controller, the cost increase of only 20 yuan, you can achieve the purpose of automatically switching lights by light intensity, energy-saving significant. Now introduced as follows: 1. Working principle Manual control, light control electrical principle as shown in the figure. When the switch S is in the automatic state, it is controlled by the light; when S is in the manual state, the street light is controlled by the start button SB2 and the stop button SB1. K is contactor, control