教室自動(dòng)感應(yīng)照明控制系統(tǒng)是基于單片機(jī)對(duì)學(xué)校教室照明設(shè)備進(jìn)行控制和管理,教室亮度的調(diào)節(jié)、自動(dòng)與手動(dòng)狀態(tài)的切換。整個(gè)系統(tǒng)由紅外對(duì)管電路、光線檢測(cè)電路、獨(dú)立按鍵操作電路組成。單片機(jī)可以實(shí)現(xiàn)對(duì)教室內(nèi)的教室檢測(cè)控制元件所采集到的信息的接收、處理,從而可以很輕松的通過(guò)自習(xí)學(xué)生人數(shù)對(duì)教室光照強(qiáng)度進(jìn)行實(shí)時(shí)調(diào)節(jié)。
教室照明節(jié)電控制部分采用STC89C52單片機(jī)作為核心控制芯片。教室入口裝有兩個(gè)激光傳感器通過(guò)高低電平判斷人數(shù)輸出信號(hào)。樓道和洗手間采用熱釋電傳感器觸發(fā)電路使LED燈發(fā)亮。
系統(tǒng)實(shí)現(xiàn)的主要功能有:
1)紅外對(duì)管電路,也是人數(shù)檢測(cè)電路,可以對(duì)進(jìn)入教室的人數(shù)進(jìn)行統(tǒng)計(jì),然后在光線黑暗的條件下,根據(jù)教室的人數(shù)決定照明燈的亮度。
2)光敏電阻檢測(cè)光線強(qiáng)度,對(duì)照明現(xiàn)場(chǎng)的亮度進(jìn)行檢測(cè),如果現(xiàn)場(chǎng)亮度符合照明要求,系統(tǒng)應(yīng)關(guān)閉照明設(shè)備實(shí)現(xiàn)智能控制。
3)獨(dú)立按鍵操作電路,可以切換自動(dòng)狀態(tài)和手動(dòng)狀態(tài)。手動(dòng)狀態(tài)就是可以手動(dòng)控制教室的照明燈。
4)樓道部分采用熱釋電傳感器檢測(cè)該區(qū)域是否有人通過(guò),控制LED燈的開關(guān)。
#include "reg52.h"
#define uchar unsigned char
#define uint unsigned int
typedef unsigned int u16; //對(duì)數(shù)據(jù)類型進(jìn)行聲明定義
typedef unsigned char u8;
#define ulong unsigned long
ulong volt;//測(cè)量的電壓值
sbit wr=P2^0; //數(shù)據(jù)寫
sbit rd=P2^1; //數(shù)據(jù)讀
sbit ce=P2^2; //片選
sbit cd=P2^3; //指令數(shù)據(jù)通道,1指令,0數(shù)據(jù)
sbit rst=P2^4; //復(fù)位信號(hào)
sbit CLK=P1^3;//定義時(shí)鐘信號(hào)口
sbit DIN=P1^1;//定義2543數(shù)據(jù)寫入口
sbit DOUT=P1^0;//定義2543數(shù)據(jù)讀取口
sbit CS=P1^2;//定義2543片選信號(hào)口
sbit LED1 = P1^4; //教室燈光
sbit LED2 = P1^5; //走廊燈光
sbit KEY1 = P3^0;
sbit KEY2 = P3^1;
sbit KEY3 = P3^4;
sbit KEY4 = P3^5;
sbit KEY5 = P3^6;
uchar Peo_Number;
uint LDR_value;
uchar Mode = 0; //當(dāng)前控制模式 0 為 自動(dòng) 1 為手動(dòng)
uchar flag; //當(dāng)前黑暗程度 0 為 明亮 1 為黑暗
uchar PWM_SET = 0;
uchar PWM_Value;
uchar LED_flag; //走廊燈
uchar code HZ0[][32]={
{0x08,0x20,0x08,0x20,0x7E,0xA0,0x09,0x3E,0x0A,0x44,0xFF,0x44,0x08,0x44,0x7E,0xA4,
0x24,0x28,0x48,0x28,0x8F,0x10,0x78,0x10,0x08,0x28,0x08,0x48,0x28,0x84,0x11,0x02},/*"教",0*/
{0x02,0x00,0x01,0x00,0x7F,0xFE,0x40,0x02,0x80,0x04,0x3F,0xF8,0x04,0x00,0x08,0x20,
0x1F,0xF0,0x01,0x10,0x01,0x00,0x3F,0xF8,0x01,0x00,0x01,0x00,0xFF,0xFE,0x00,0x00},/*"室",1*/
{0x00,0x00,0x7D,0xFC,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x94,0x7D,0x08,0x44,0xFC,
0x44,0x84,0x44,0x84,0x44,0x84,0x7C,0xFC,0x00,0x00,0x48,0x88,0x44,0x44,0x84,0x44},/*"照",2*/
{0x00,0x00,0x00,0xFC,0x7C,0x84,0x44,0x84,0x44,0x84,0x44,0xFC,0x7C,0x84,0x44,0x84,
0x44,0x84,0x44,0xFC,0x7C,0x84,0x44,0x84,0x01,0x04,0x01,0x04,0x02,0x14,0x04,0x08},/*"明",3*/
{0x00,0xF8,0x3F,0x00,0x04,0x00,0x08,0x20,0x10,0x40,0x3F,0x80,0x01,0x00,0x06,0x10,
0x18,0x08,0x7F,0xFC,0x01,0x04,0x09,0x20,0x11,0x10,0x21,0x08,0x45,0x04,0x02,0x00},/*"系",4*/
{0x10,0x40,0x10,0x20,0x20,0x20,0x23,0xFE,0x48,0x40,0xF8,0x88,0x11,0x04,0x23,0xFE,
0x40,0x92,0xF8,0x90,0x40,0x90,0x00,0x90,0x19,0x12,0xE1,0x12,0x42,0x0E,0x04,0x00},/*"統(tǒng)",5*/
{0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x02,0x80,0x02,0x80,
0x04,0x40,0x04,0x40,0x08,0x20,0x08,0x20,0x10,0x10,0x20,0x08,0x40,0x04,0x80,0x02},/*"人",6*/
{0x08,0x20,0x49,0x20,0x2A,0x20,0x08,0x3E,0xFF,0x44,0x2A,0x44,0x49,0x44,0x88,0xA4,
0x10,0x28,0xFE,0x28,0x22,0x10,0x42,0x10,0x64,0x28,0x18,0x28,0x34,0x44,0xC2,0x82},/*"數(shù)",7*/
{0x01,0x00,0x02,0x00,0x04,0x00,0x1F,0xF0,0x10,0x10,0x10,0x10,0x10,0x10,0x1F,0xF0,
0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10},/*"自",8*/
{0x00,0x40,0x00,0x40,0x7C,0x40,0x00,0x40,0x01,0xFC,0x00,0x44,0xFE,0x44,0x20,0x44,
0x20,0x44,0x20,0x84,0x48,0x84,0x44,0x84,0xFD,0x04,0x45,0x04,0x02,0x28,0x04,0x10},/*"動(dòng)",9*/
{0x00,0x10,0x00,0xF8,0x3F,0x00,0x01,0x00,0x01,0x00,0x3F,0xF8,0x01,0x00,0x01,0x00,
0x01,0x00,0xFF,0xFE,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x05,0x00,0x02,0x00},/*"手",10*/
{0x00,0x40,0x00,0x40,0x7C,0x40,0x00,0x40,0x01,0xFC,0x00,0x44,0xFE,0x44,0x20,0x44,
0x20,0x44,0x20,0x84,0x48,0x84,0x44,0x84,0xFD,0x04,0x45,0x04,0x02,0x28,0x04,0x10},/*"動(dòng)",11*/
{0x11,0x10,0x11,0x10,0x17,0xFC,0x11,0x10,0xFC,0x00,0x13,0xF8,0x32,0x08,0x3B,0xF8,
0x56,0x08,0x53,0xF8,0x90,0x40,0x17,0xFC,0x10,0xA0,0x11,0x10,0x12,0x08,0x14,0x06},/*"模",12*/
{0x00,0x48,0x00,0x44,0x00,0x44,0x00,0x40,0xFF,0xFE,0x00,0x40,0x00,0x40,0x3E,0x40,
0x08,0x40,0x08,0x40,0x08,0x20,0x08,0x22,0x0F,0x12,0x78,0x0A,0x20,0x06,0x00,0x02},/*"式",13*/
{0x01,0x00,0x21,0x08,0x11,0x08,0x09,0x10,0x09,0x20,0x01,0x00,0xFF,0xFE,0x04,0x40,
0x04,0x40,0x04,0x40,0x04,0x40,0x08,0x42,0x08,0x42,0x10,0x42,0x20,0x3E,0xC0,0x00},/*"光",14*/
{0x40,0x20,0x40,0x20,0x7F,0x20,0x80,0x3E,0x7E,0x44,0x42,0x44,0x52,0x44,0x4A,0xA4,
0xFF,0xA8,0x42,0x28,0x92,0x10,0x8A,0x10,0xFF,0x28,0x02,0x48,0x14,0x84,0x09,0x02},/*"敏",15*/
{0x00,0x00,0x7D,0xF8,0x45,0x08,0x49,0x08,0x49,0x08,0x51,0xF8,0x49,0x08,0x49,0x08,
0x45,0x08,0x45,0xF8,0x45,0x08,0x69,0x08,0x51,0x08,0x41,0x08,0x47,0xFE,0x40,0x00},/*"阻",16*/
{0x08,0x40,0x08,0x40,0x0F,0xFC,0x10,0x40,0x10,0x40,0x33,0xF8,0x32,0x08,0x53,0xF8,
0x92,0x08,0x13,0xF8,0x12,0x08,0x13,0xF8,0x12,0x08,0x12,0x08,0x1F,0xFE,0x10,0x00},/*"值",17*/
};
uchar code SZ[][16]={
{0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18,0x00,0x00},/*"0",0*/
{0x00,0x00,0x00,0x08,0x38,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x3E,0x00,0x00},/*"1",1*/
{0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x02,0x04,0x08,0x10,0x20,0x42,0x7E,0x00,0x00},/*"2",2*/
{0x00,0x00,0x00,0x3C,0x42,0x42,0x02,0x04,0x18,0x04,0x02,0x42,0x42,0x3C,0x00,0x00},/*"3",3*/
{0x00,0x00,0x00,0x04,0x0C,0x0C,0x14,0x24,0x24,0x44,0x7F,0x04,0x04,0x1F,0x00,0x00},/*"4",4*/
{0x00,0x00,0x00,0x7E,0x40,0x40,0x40,0x78,0x44,0x02,0x02,0x42,0x44,0x38,0x00,0x00},/*"5",5*/
{0x00,0x00,0x00,0x18,0x24,0x40,0x40,0x5C,0x62,0x42,0x42,0x42,0x22,0x1C,0x00,0x00},/*"6",6*/
{0x00,0x00,0x00,0x7E,0x42,0x04,0x04,0x08,0x08,0x10,0x10,0x10,0x10,0x10,0x00,0x00},/*"7",7*/
{0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x24,0x18,0x24,0x42,0x42,0x42,0x3C,0x00,0x00},/*"8",8*/
{0x00,0x00,0x00,0x38,0x44,0x42,0x42,0x42,0x46,0x3A,0x02,0x02,0x24,0x18,0x00,0x00},/*"9",9*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*" ",10*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00},/*":",11*/
};
void delay(uint j) //1ms
{
uchar i=250;
for(;j>0;j--)
{
while(--i);
i=249;
while(--i);
i=250;
}
}
void Delay_xms(uint x)
{
uint i,j;
for(i=0;i>=1;
volt=ad;//取走轉(zhuǎn)換結(jié)果
volt=volt*1221;//例子的滿量程為5V,轉(zhuǎn)換分辯率為12位(2的12次方=4096) 。即最大值是255,5/4096=1221mV,即例子中的1V代表實(shí)際1221mV
LDR_value = volt / 1000;
}
void KEY_Scan()
{
if(KEY1 == 0)
{
delay(20);
if(KEY1 == 0)
{
while(KEY1==0);
display_HZ(1,0,HZ0[10]);
display_HZ(1,1,HZ0[11]);
display_HZ(1,2,HZ0[12]);
display_HZ(1,3,HZ0[13]);
Mode = 1;
}
}
if(KEY2 == 0)
{
delay(20);
if(KEY2 == 0)
{
while(KEY2==0);
display_HZ(1,0,HZ0[8]);
display_HZ(1,1,HZ0[9]);
display_HZ(1,2,HZ0[12]);
display_HZ(1,3,HZ0[13]);
Mode = 0;
}
}
if(KEY3 == 0)
{
delay(20);
if(KEY3 == 0)
{
while(KEY3==0);
if(Mode==1)
{
LED1 = 0;
}
}
}
if(KEY4 == 0)
{
delay(20);
if(KEY4 == 0)
{
while(KEY4==0);
if(Mode==1)
{
LED1 = 1;
}
}
}
if(KEY5 == 0)
{
delay(20);
if(KEY5 == 0)
{
while(KEY5==0);
LED2 = 0;
delay(1000);
LED2 = 1;
}
}
}
void main()
{
TMOD |= 0x01; //開啟定時(shí)器0 0x10時(shí)使用定時(shí)器1 0x11時(shí)啟動(dòng)兩個(gè)
TH0=0XFC; //給定時(shí)器賦初值,定時(shí)1ms TH1
TL0=0X18; //TL1
ET0=1; //定時(shí)器0中斷打開 ET1
TR0=1; //定時(shí)器0開關(guān)打開 TR1
EA=1; //全局中斷開
EX0=1; //外部中斷0開() EX1 為外部中斷1 (P3^3)
IT0=1; //低電平觸發(fā) IT1為中斷1
EX1=1; //外部中斷0開() EX1 為外部中斷1 (P3^3)
IT1=1; //低電平觸發(fā) IT1為中斷1
init();
Delay_xms(10);
display_HZ(0,1,HZ0[0]);
display_HZ(0,2,HZ0[1]);
display_HZ(0,3,HZ0[2]);
display_HZ(0,4,HZ0[3]);
display_HZ(0,5,HZ0[4]);
display_HZ(0,6,HZ0[5]);
display_HZ(1,0,HZ0[8]);
display_HZ(1,1,HZ0[9]);
display_HZ(1,2,HZ0[12]);
display_HZ(1,3,HZ0[13]);
display_HZ(2,0,HZ0[6]);
display_HZ(2,1,HZ0[7]);
display_SZ(2,4,SZ[11]);
display_SZ(2,5,SZ[Peo_Number/100]);
display_SZ(2,6,SZ[Peo_Number/10%10]);
display_SZ(2,7,SZ[Peo_Number%10]);
read2543(0);
display_HZ(3,0,HZ0[14]);
display_HZ(3,1,HZ0[15]);
display_HZ(3,2,HZ0[16]);
display_HZ(3,3,HZ0[17]);
display_SZ(3,8,SZ[11]);
display_SZ(3,9,SZ[LDR_value/1000]);
display_SZ(3,10,SZ[LDR_value/100%10]);
display_SZ(3,11,SZ[LDR_value/10%10]);
display_SZ(3,12,SZ[LDR_value%10]);
while(1)
{
KEY_Scan();
}
}
void K_INT1( ) interrupt 0 // 這里0對(duì)應(yīng)下表
{
Peo_Number++;
}
void K_INT2( ) interrupt 2 // 這里0對(duì)應(yīng)下表
{
if(Peo_Number!=0)
{
Peo_Number--;
}
}
void Timer0() interrupt 1 //參考上圖 定時(shí)器1時(shí)為3
{
static uint i; //定義一個(gè)自變形變量
TH0=0XFC; //給定時(shí)器賦初值,定時(shí)1ms TH1
TL0=0X18; //TL1
i++;
PWM_Value++;
if(i==200)
{
i=0;
read2543(0);
display_SZ(3,9,SZ[LDR_value/1000]);
display_SZ(3,10,SZ[LDR_value/100%10]);
display_SZ(3,11,SZ[LDR_value/10%10]);
display_SZ(3,12,SZ[LDR_value%10]);
display_SZ(2,5,SZ[Peo_Number/100]);
display_SZ(2,6,SZ[Peo_Number/10%10]);
display_SZ(2,7,SZ[Peo_Number%10]);
if(Peo_Number == 1)
{
PWM_SET = 1;
}else if(Peo_Number > 20)
{
PWM_SET = 5;
}else if(Peo_Number < 20 && Peo_Number?>1)
{
PWM_SET = Peo_Number/5 + 1;//234
}else if(Peo_Number==0)
{
PWM_SET = 0;
}
if(LDR_value1500)
{
flag = 0;
}else
{
flag = 1;
}
}
if(PWM_Value==5)
{
PWM_Value = 0;
}
if(flag == 1 && Mode == 0)//光線不充足 并且在自動(dòng)模式下
{
if(PWM_Value >= PWM_SET)//1
{
LED1 = 1;
}else
{
LED1 = 0;
}
}else if(flag == 0 && Mode == 0)
{
LED1 = 1;
}
}
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