功能：
0.本系统采用STC89C52作为单片机
1.LCD1602液晶实时显示当前时间/环境光强/工作模式
2.支持路灯故障检测
3.工作时间内(17~24时)，两个路灯同时点亮，24时以后，B路灯关闭，若检测到由物体通过，路灯B点亮10s后关闭
4.非工作时间，光照强度低于所设定的光照阈值，两个路灯点亮
5.可通过按键更改当前时间/路灯工作时间/光照阈值/工作模式/路灯光照强度
按键功能描述：
a)非设置状态下按键功能
切换/确定键：切换全自动/定时模式/手动模式
上/下键：更换界面
左键：关闭所有路灯
右键：打开所有路灯
设置键：进入对应设置界面
b)设置界面
切换/确定键：保存设置并退出设置状态
上/下键：加/减
左/右键：切换设置位置
6.采用DC002作为电源接口可直接输入5V给整个系统供电
原理图：
PCB ：
主程序：
#define __MAIN_C#include <reg52.h>#include "main.h"enum _MODE_DF_ dispMode; //显示模式bit dispFlag = 1; //显示标志bit setFlag = 0; //设定标志bit sendFlag = 0; //发送标志unsigned char setIndex = 0; //设置坐标unsigned char lightValue; //环境光强unsigned char lightValueA; //灯光A光强unsigned char lightValueB; //灯光B光强unsigned char lightLimit = 40; //光强阈值unsigned char timeLimit[4] = {17, 0, 5, 0}; //工作时间unsigned char modeFlag = 0; //模式标志bit lampBDelay = 0; //灯光B延时bit lampAError = 0; //灯光A故障标志bit lampBError = 0; //灯光B故障标志bit lampASwitch; //灯光A开关bit lampBSwitch; //灯光B开关void main(){//初始化lampASwitch = LAMP_OFF;lampBSwitch = LAMP_OFF;Timer0_Init();LCD_Init();DS1302_Init();DelayMs(20);//开机显示LCD_DispStr(0, 0, " Welcome! ");DelayS(2);LCD_Clear();DS1302_ReadTime();DispNormal(setIndex);while(1){// LCD1602液晶显示if (dispFlag == 1 && setFlag == 0){dispFlag = 0;LampCtr(); //灯光自动控制CheckLamp(); //灯光检测DS1302_ReadTime(); //读取时间if (dispMode == DISP_NORMAL) //正常显示模式{DispNormal(setIndex);}else if (dispMode == SET_TIME_LIMIT) //工作时间设定{DispSetLimit(setIndex);}else if (dispMode == SET_LIGHT) //光强阈值设定{DispSetLight(setIndex);}else if (dispMode == CHECK_LIGHT) //灯光检测界面{DispCheckLight(setIndex);}}KeyProcess(); //按键处理}}void LampCtr(){lightValue = 99 - 99 * ReadADC1(AIN0_GND) / 255; //读取当前光照强度if (modeFlag == 1) //在定时模式下{if ((timeBufDec[4] == timeLimit[0] && timeBufDec[5] >= timeLimit[1]) || (timeBufDec[4] > timeLimit[0]) \|| (timeBufDec[4] == timeLimit[2] && timeBufDec[5] < timeLimit[3]) || (timeBufDec[4] < timeLimit[2])) //工作时间内路灯操作{lampASwitch = LAMP_ON;if ((timeBufDec[4] >= 0 && timeBufDec[4] < timeLimit[2]) || (timeBufDec[4] == timeLimit[2] && timeBufDec[5] < timeLimit[3])){if (!lampBDelay){lampBSwitch = LAMP_OFF;if (IRFLAG == 0) //检测到有人或车经过 启动10s定时{lampBDelay = 1; }}}else{lampBSwitch = LAMP_ON;lampBDelay = 0;}}else{lampASwitch = LAMP_OFF;lampBSwitch = LAMP_OFF;}}if (modeFlag == 2) //在自动模式下{if ((timeBufDec[4] == timeLimit[0] && timeBufDec[5] >= timeLimit[1]) || (timeBufDec[4] > timeLimit[0]) \|| (timeBufDec[4] == timeLimit[2] && timeBufDec[5] < timeLimit[3]) || (timeBufDec[4] < timeLimit[2])) //工作时间内路灯操作{lampASwitch = LAMP_ON;if ((timeBufDec[4] >= 0 && timeBufDec[4] < timeLimit[2]) || (timeBufDec[4] == timeLimit[2] && timeBufDec[5] < timeLimit[3])){if (!lampBDelay){lampBSwitch = LAMP_OFF;if (IRFLAG == 0) //检测到有人或车经过 启动10s定时{lampBDelay = 1; }}}else{lampBSwitch = LAMP_ON;lampBDelay = 0;}}else //工作时间外路灯操作{if (lightValue < lightLimit) //光照强度低于设定阈值{lampASwitch = LAMP_ON;lampBSwitch = LAMP_ON;}else{lampASwitch = LAMP_OFF;lampBSwitch = LAMP_OFF;}}}if (lampASwitch == LAMP_ON){LAMPA = LAMP_ON;}else{LAMPA = LAMP_OFF;}if (lampBSwitch == LAMP_ON){LAMPB = LAMP_ON;}else{LAMPB = LAMP_OFF;}}void CheckLamp(){if (lampASwitch == LAMP_ON) //路灯A打开时，检测对应光强{lightValueA = 99 - 99 * ReadADC2(AIN1_GND) / 255; //读取当前光照强度if (lightValueA < 50) //路灯A故障声光报警 阈值可根据实际情况调整{lampAError = 1;BUZZER = 0; //打开蜂鸣器}else{lampAError = 0;}}if (lampBSwitch == LAMP_ON) //路灯B打开时，检测对应光强{lightValueB = 99 - 99 * ReadADC2(AIN0_GND) / 255; //读取当前光照强度if (lightValueB < 50) //路灯B故障声光报警 阈值可根据实际情况调整{lampBError = 1;BUZZER = 0; //打开蜂鸣器}else{lampBError = 0;}}if (lampAError == 0 && lampBError == 0) //灯都没有故障{BUZZER = 1; //关闭蜂鸣器}if (lampASwitch == LAMP_OFF && lampBSwitch == LAMP_OFF) //灯全部关闭{BUZZER = 1; //关闭蜂鸣器}}//定时器0初始化void Timer0_Init(void){TMOD &= 0xF0;TMOD |= 0x01;TL0 = 0x00;//设置定时初值TH0 = 0x4C;//设置定时初值 50msTR0 = 1; //启动T0计时ET0 = 1; //打开T0中断EA = 1; //打开总中断}//定时器0中断void Timer0_Intterupt(void) interrupt 1{static unsigned char cnt = 0;static unsigned int time50ms = 0;TL0 = 0x00;//设置定时初值TH0 = 0x4C;//设置定时初值 50mscnt++;if (cnt >= 5) //250ms刷新一次状态{cnt = 0;dispFlag = 1; }if (modeFlag == 1 || modeFlag == 2) //在自动模式或定时模式下{if (lampBDelay == 1){time50ms++;lampBSwitch = LAMP_ON;if (time50ms >= 200) //定时10s关闭路灯B{lampBDelay = 0;lampBSwitch = LAMP_OFF;time50ms = 0;}}}}
实物视频：
/video/BV17g411e7Td/
仿真视频：
/video/BV15S4y1z7tw/
