功能:
0.本系统采用STC89C52作为单片机
1.液晶实时显示时间/环境光强/工作模式
2.每隔5s向蓝牙串口发送一次信息
3.支持路灯故障检测
4.工作时间18~24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
5.非工作时间,光照强度低于设定光照阈值,两个路灯点亮
6.可蓝牙控制两个路灯状态
7.按键更改时间/工作时间/光照阈值/工作模式/路灯亮度
8.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"
bit dispFlag = 1;
bit setFlag = 0;
bit sendFlag = 0;
unsigned char setIndex = 0;
unsigned char lightValue;
unsigned char lightValueA;
unsigned char lightValueB;
unsigned char lightLimit = 70;
unsigned char timeLimit[4] = {18, 0, 5, 0};
char dispMode = DISP_NORMAL;
bit autoFlag = 0;
bit lampBDelay = 0;
bit lampAError = 0;
bit lampBError = 0;
bit lampASwitch;
bit lampBSwitch;
unsigned char lampAPWM = 3;
unsigned char lampBPWM = 3;
int cnt = 0;
unsigned int time500us = 0;
unsigned char i = 0;
unsigned char R_buf[4];
void main()
{
//初始化
lampASwitch = LAMP_OFF;
lampBSwitch = LAMP_OFF;
LCD_Init();
DS1302_Init();
EEPROM52_Read();
if (isNew == 1)
{
DS1302_WriteTime();
}
DS1302_ReadTime();
EEPROM52_Init();
Timer0_Init();
UART0_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();
CheckLamp();
DS1302_ReadTime();
if (dispMode == DISP_NORMAL)
{
DispNormal(setIndex);
}
else if (dispMode == SET_TIME_LIMIT)
{
DispSetLimit(setIndex);
}
else if (dispMode == SET_LIGHT)
{
DispSetLight(setIndex);
}
else if (dispMode == CHECK_LIGHT)
{
DispCheckLight(setIndex);
}
}
//发送一次串口信息
if (sendFlag == 1)
{
sendFlag = 0;
if (lampAError == 1)
{
sprintf(dispRow0, "A:%d Er ", (int)lampAPWM);
}
else
{
sprintf(dispRow0, "A:%d Ok ", (int)lampAPWM);
}
if (lampBError == 1)
{
sprintf(dispRow1, "B:%d Er", (int)lampBPWM);
}
else
{
sprintf(dispRow1, "B:%d Ok", (int)lampBPWM);
}
if (lampASwitch == LAMP_OFF)
{
UART0_SendStr("C",1);
}
else
{
UART0_SendStr("O",1);
}
UART0_SendStr(dispRow0, 8);
if (lampBSwitch == LAMP_OFF)
{
UART0_SendStr("C",1);
}
else
{
UART0_SendStr("O",1);
}
UART0_SendStr(dispRow1,6);
UART0_SendStr("\r\n", 2);
if (autoFlag == 1)
{
sprintf(dispRow1, "%02d:%02d:%02d L:%02d A ", (int)timeBufDec[4], (int)timeBufDec[5], (int)timeBufDec[6], (int)lightValue);
}
else
{
sprintf(dispRow1, "%02d:%02d:%02d L:%02d M ", (int)timeBufDec[4], (int)timeBufDec[5], (int)timeBufDec[6], (int)lightValue);
}
UART0_SendStr(dispRow1, 16);
UART0_SendStr("\r\n", 2);
UART0_SendStr("\r\n", 2);
}
KeyProcess();
}
}
void LampCtr()
{
lightValue = 99 - 99 * ReadADC1(AIN0_GND) / 255; //读取当前光照强度
if (autoFlag)
{
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;
}
}
}
}
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
}
}
void Timer0_Init(void)
{
TMOD &= 0xF0;
TMOD |= 0x01;
TL0 = 0x33; //设置定时初值
TH0 = 0xFE; //设置定时初值 500us
TR0 = 1; //启动T0计时
ET0 = 1; //打开T0中断
EA = 1; //打开总中断
}
void Timer0_Intterupt(void) interrupt 1
{
static unsigned char ACount = 0;
static unsigned char BCount = 0;
TL0 = 0x33; //设置定时初值
TH0 = 0xFE; //设置定时初值 500us
if (cnt > 10000) //5s发送一次串口信息
{
sendFlag = 1;
cnt = 0;
}
else
{
cnt++;
}
if (autoFlag)
{
if (lampBDelay == 1)
{
time500us++;
lampBSwitch = LAMP_ON;
if (time500us >= 20000) //定时10s关闭路灯B
{
lampBDelay = 0;
lampBSwitch = LAMP_OFF;
time500us = 0;
}
}
}
if (cnt % 500 == 0) //250ms刷新一次状态
{
dispFlag = 1;
if (setFlag == 1)
{
LCD_WriteCommand(0x0F, 0);
LCD_WriteCommand(0x0F, 0);
}
else
{
LCD_WriteCommand(0x0C, 0);
LCD_WriteCommand(0x0C, 0);
}
}
if (lampASwitch == LAMP_ON)
{
ACount++;
if (ACount <= lampAPWM) //占空比调节
{
LAMPA = LAMP_ON;
}
else if ((ACount > lampAPWM) && (ACount <= 3))
{
LAMPA = LAMP_OFF;
}
else
{
ACount = 0;
}
}
else
{
LAMPA = LAMP_OFF;
}
if (lampBSwitch == LAMP_ON)
{
BCount++;
if (BCount <= lampBPWM) //占空比调节
{
LAMPB = LAMP_ON;
}
else if ((BCount > lampBPWM) && (BCount <= 3))
{
LAMPB = LAMP_OFF;
}
else
{
BCount = 0;
}
}
else
{
LAMPB = LAMP_OFF;
}
}
void UART0_Init()
{
SCON = 0x50;
TMOD &= 0x0F;
TMOD |= 0x20; //8位自动重装
TH1 = RH_UART;
TL1 = TH1;
ET1 = 0; //禁止T1中断
TR1 = 1; //启动T1计时
ES = 1; //打开串口中断
EA = 1; //打开总中断
}
void UART0_SendByte(unsigned char dat) //串口发送单字节数据
{
unsigned char time_out;
time_out = 0x00;
SBUF = dat; //将数据放入SBUF中
while ((!TI) && (time_out < 100)) //检测是否发送出去
{
time_out++;
DelayUs10x(2);
} //未发送出去 进行短暂延时
TI = 0; //清除ti标志
}
void UART0_SendStr(unsigned char *str, unsigned char length) //发送定长度字符串
{
// unsigned char *tmp;
unsigned char cnt = 0;
// unsigned char length = 0;
// tmp = str;
// while (*(tmp++) != '\0')
// {
// length++;
// }
while (cnt < length) //发送长度对比
{
UART0_SendByte(*str); //发送单字节数据
str++; //指针++
cnt++; //下一个++
}
}
void UART0_Interrupt() interrupt 4
{
if (RI)
{
RI = 0;
if (SBUF == '*')
{
i = 0;
}
R_buf[i] = SBUF;
SBUF = SBUF;
i++;
if (i == 4)
{
i = 0;
if (R_buf[0] == '*' && R_buf[3] == '#')
{
if (R_buf[1] == 'A')
{
if (R_buf[2] == '0')
{
lampASwitch = LAMP_OFF;
lampAPWM = 0;
}
else if (R_buf[2] == '1')
{
lampASwitch = LAMP_ON;
lampAPWM = 1;
}
else if (R_buf[2] == '2')
{
lampASwitch = LAMP_ON;
lampAPWM = 2;
}
else if (R_buf[2] == '3')
{
lampASwitch = LAMP_ON;
lampAPWM = 3;
}
}
else if (R_buf[1] == 'B')
{
if (R_buf[2] == '0')
{
lampBSwitch = LAMP_OFF;
lampBPWM = 0;
}
else if (R_buf[2] == '1')
{
lampBSwitch = LAMP_ON;
lampBPWM = 1;
}
else if (R_buf[2] == '2')
{
lampBSwitch = LAMP_ON;
lampBPWM = 2;
}
else if (R_buf[2] == '3')
{
lampBSwitch = LAMP_ON;
lampBPWM = 3;
}
}
else if (R_buf[1] == 'M')
{
if (R_buf[2] == 'A')
{
autoFlag = 1;
}
else if (R_buf[2] == 'M')
{
autoFlag = 0;
}
}
}
}
}
if (TI)
{
TI = 0;
}
}
仿真演示视频:
https://www.bilibili.com/video/BV1jf4y1b71a/
实物演示视频:
https://www.bilibili.com/video/BV1Su411q7v1/