科技创新6-第08大组测温子系统设计报告

FFFADF摘要：热敏电阻、温度过冲、红外通：Detectthewatertemperaturebythermistor,toshowthecurrenttemperature.Controltheheater'scondition(on/off)byrelay,torealizethefunctionofcontrollingthetemperatureandkeethetemperature.Designthesoftwaretogetridofstaticerroranddynamicerror,torealizehighaccuracytemperaturecontrol.：thermistor，thermalovershoot，Infrared 概 编写说 名词定 相关文 系统总 系统功能描 系统组成结 温度测量模 温度控制模 液晶显示模 温度测量模块的硬件设 电路图 设计原 实验中遇到的问 过程中遇到的计 温度控制部分的硬件设 电路 设计原 实验中遇到的问 液晶显示模 电路 设计原 由于AD已经占用了I/O端口，所以需要用8255进行拓展接口 实验中遇到的问 系统各部分软件设 单片机简 单片机子系统概 重要的全局变 温度测 温度控 液晶显 测量结果和分 测量方 水温控制模块软件设 独立模式工作情 温控精度测 液晶状态正确显 分 学习心得体会和建 致 参考文 附录 开发环 硬件开发工 软件开发工 附录 软件程序.................................................................................对应AD的程 对应DS18B20的程 附录 使用说 系统功能介绍 系统性能指 水温控制指标 水温检测指标 系统按键及接线示意图 系统操作与显 概了解电子技术基础知识，对单片机的应用有所了解的电子技 者、在校师生或工程技术PN结为基础结构，能够自发辐射红外信号的半导体设备。科技创新[6]总体设计报告科技创新[6]全局主系统设计报告.doc科技创新[6]本系统设计报告科技创新[6]超声测距子系统设计报告.doc科技创新[6]电机测速子系统设计报告系统总2-1通过热敏电阻阻值变化，通过变换电路，以电压形式将信号传给AD，AD温度测量模块的硬件设 10 ADC08047VDB6VDB11DB216 239DB DB DB DB DB INTRCLK 3015 2.15 103-1通过运算放大器放大，作为AD的输入，AD的另一个输入由稳定的标准参考电压给定。ADR4Vin()minVin()VV VVin()maxVin()V温度控制部分的硬件设4-15V（约300VcVEVB0.74.3VIBIE0.43A

IEVE/RERoVo/IB液晶显示模5-1ADI/O82555-2Vcc5V，Vss接地，15，16脚的LED+LED-5V和地。Vee0～5VLCD对比度相关的。IDC26是单片机与ADC080626AD0~AD7接ADC08061所示。6-1IDC26引脚定义6-274HC373结构图6-374HC02结构图（4）6-4MM74HC138结构图8位二进制数传给单片机。单片机将此二进制数与事先存好的数组进行比较，从目标温度目标温度YN6-56-1unsignedADunsignedAD_table自控和的切tADunsignedADNADAD5ADC0804进行一次A/D8A/D转换得到的数值有可能产生误差，因此设置了一个大小为20A/D20A/D8位二进A/D转换得A/D转换得到的数如果不在第一个数组中，则将其统一定为数组中前一个数1度。本程序中的AD值的采用了利用5ms的中断一次发读的指令，一次的方法。这样没有delay，让程序更紧凑，更高效[9]20个值然后取平均的方法。if{}{}

if(d_ptr>=N)for(j=0;j<N;

6-6（2）2度<（设定温度值－实际温度值）<924245秒5155秒9521秒，停4目标YN1142156-7))//{reachflag=0;flag=}// {reachflag=0;}{reachflag=0;flag=SlowHeat;{}else{}}{reachflag=flag=SlowestHeat;{}else{}}//1s{reachflag=flag=SlowestHeat;{}else{}}elseif{if(current_temp==aim_temp)reachflag=1;reachflag=flag=KeepWarm;heat=1;}} 4秒为周期进行温度显示和状态显示的切换。if(flag2==1{if(m==0flag2=}DS18B20是可组网数字温度传感器封装而成，具有耐磨耐碰，体积小，使用方便，封装形table。但是由于DS18B20高度集成，并且所有令完全是由单线时序。导致我们没有办法很好[30,99].3数码管正确显示目标水温与实际水温30℃（最低温度）、99℃（最高温度）、任一温度（[30,99]℃）；9℃以上，(2,9]℃，比当前实际水温高（0,2]度2s液晶每2s在温度显示与状态显示之间自行切换7-1绝对误差（温度计示数－目000水温测控范围此外，AD0.5度。如果时间充裕的话，我们会选择一个更大范围（12位）AD。组员6需要防止温度过冲，所以要有很多情况的讨论。尤其是到了最后关头，发现由于 组员，，组员组长致 参考文DS18B20Data74HC37374HC02MM74HC138LCD1602附录 开发环Keilc51附录 软件程AD#include<absacc.h>#include<reg52.h>#include"sio.h"#include"lcd.h" 常量定 /*#defineV_TH0 0xee ~5ms*/#defineV_TL0 #defineV_TH10x4c#defineV_TL1/*#define /*数码管位驱动和指示灯驱动寄存器地址*/#defineADDR_SEL //AD#define #defineFrame_Max23#defineMASTER0x00#defineSLAVE0x01/*sbitKEY1=P1^0;sbitKEY2=P1^1;sbitKEY3=P1^2;sbitKEY4=sbit //加热信号1为加热，0sbittest=P1^4;sbitW_EN=P3^2;//voltageinADinclosemodeunsignedintxdataAD_table[74]= ,21,25,28,32,35,39,42,46,50,54,58,62,65,69,73,77,81,85,,101,105,108,112,116,120,123,127,130,134,138,141,149,152,155,158,161,164,168,170,174,177,180,183,188,191,194,196,199,202,204,206,209,211,213,216,219,222,225,227,229,230,232,234,236,237,240unsignedintxdatatemp_table[74]{29,30,31,32,33,34,35,36,37,38,40,41,42,43,44,45,46,47,48,50,51,52,53,54,55,56,57,58,60,61,62,63,64,65,66,67,68,70,71,72,73,74,75,76,77,78,80,81,82,83,84,85,86,87,88,90,91,92,93,94,95,96,97,98, 变量定 /**/unsignedcharbdataoutput_sel;sbitled_1=output_sel^5;sbitled_2=output_sel^6;sbitled_3=output_sel^7;sbitled_4=/*数码管扫描驱动指针，为测试外部器（U36264），特使用xdata类型*/unsignedcharxdatadigi_scaner;/*测试用计数值十进制表示，为测试外部器（U36264），特使用xdata类型*/unsignedcharxdatadigi[4];intflag;液晶显示状态intcnt=0;//液晶计数intm0;中断里显示的状态intflag2=0;intmode intreachflag=0;//0为未达到目标温度intoffflag=1; //0为强制关闭电源unsignedintcnt2s;/*秒数的计数变量*/unsignedintcnt4s;unsignedintcnt5s;unsignedintcnt1s;unsignedintcnt11s;unsignedintunsignedintwait2s;*秒数的控制变量*/unsignedintwait4s;unsignedintwait5s;unsignedintwait1s;unsignedintwait11s;unsignedintwait35s;intindex;//judgeturningontheconverterorreadingstatusintt=0;//arraytostoreADvalueintj1=0;unsignedintxdataint//thenumberweneedtogetaverageintN=20;//pointerint//ADintAD_data=unsignedchardatatime=0;ucharxdataSendData[Frame_Max];ucharxdataReceiveData[Frame_Max];uintj;uintSCount;uintRCount;ucharstate;ucharsending;ucharread_state;ucharMessage;ucharrec_end;RS_422tosend;RS_422received;ucharerror;uchartemp;ucharxdata 函数intget_temp(AD_data){inti=for(i=0;AD_table[i]<=AD_data;i++);index=i;}voidW5S()/*5秒函数{{}}voidW4S()/*4秒函数{}}voidW2S()/*2秒函数{}}voidW1S()/*1秒函数{{}}voidW11S()/*1秒函数{{}}voidW35S()/*1秒函数{{}}void值unsignedcharNUMTOSEG7(unsignedchar7//参数：DATA//7D7~0PGFEDCBA 函数定 /****7段数码显示译码DATA7D7~0PGFEDCBAunsignedcharNUMTOSEG7(unsignedchar{unsignedcharAA;switch(DATA){case0:AA=0xc0;break;/*‘0’*/case1:AA=0xf9;break;/*‘1’*/case2:AA=0xa4;break;*‘2’*/case3:AA=0xb0;break;*‘3’*/case4:AA=0x99;break;*‘4’*/case5:AA=0x92;break;*‘5’*/case6:AA=0x82;break;*‘6’*/case7:AA=0xf8;break;/*‘7’*/case8:AA=0x80;break;*‘8’*/case9:AA=0x90;break;*‘9’*/case10:AA=0x88;break;*‘A’*/case11:AA=0x83;break;*‘B’*/case12:AA=0xc6;break;*‘C’*/case13:AA=0xa1;break;*‘D’*/case14:AA=0x86;break;*‘E’*/case15:AA=0x8e;break;/*‘F’*/caseAA=0xbf;break;*case_':AA=0xf7;break;*下划线*/case'':AA=0xff;break;/*消隐*/default:AA=0xff;}}voidsend_buff(RS_422{SendData[0]=rs.SOI;for(j=0;j<rs.LENGTH;j++){SendData[11+j*2]=transH(rs.INFO[j]);SendData[12+j*2]=}}uchar{if(received.CMD1_RSPD==0x01)}return}voidreceive_check{received.SOI=received.VER=unite(ReceiveData[1],ReceiveData[2]);received.ADDR=unite(ReceiveData[3],ReceiveData[4]);received.CMD1_RSPD=unite(ReceiveData[5],ReceiveData[6]);received.CMD2_RTN=unite(ReceiveData[7],ReceiveData[8]);received.LENGTH=unite(ReceiveData[9],ReceiveData[10]);for(j=0;j<RCount-13;j+=2)received.INFO[j/2]=unite(ReceiveData[11+j],ReceiveData[j+12]);if(received.VER!=VERSION)error=0x01;else{if(temp%256!=0)error=0x02;else{if((received.CMD2_RTN!=0&&received.CMD1_RSPD!=1)||(received.CMD1_RSPD&&received.CMD2_RTN>1)||received.CMD1_RSPD>4)error=0x03;elseif(received.LENGTH*2!=RCount-13)error=0x04;else{if(infocheck())error=0x05;else}}}}}voidreset()typedefstructunsignedcharrstcode[27];intaddr;}resetstruct;resetstructcode0xc0,0xe0,0x32},}/****T05mstimer0()interrupt1using{//TR1= /**/output_sel0xf0;*初值，令数码管驱动位无效，指示灯全灭*/led_1=mode;led_2=(reachflag)?0:1;led_3=(offflag)?0:1;Keyboard();/*145ms间隔对一个数码管进行驱动，20ms一个*/if(++digi_scaner>=5)digi_scaner=1;switch(digi_scaner){case1:**/output_sel|=0x01;case2:**/output_sel|=0x02;ADDR_8SEGNUMTOSEG7(digi[1*U5*/case3:**/output_sel|=0x04;ADDR_8SEGNUMTOSEG7(digi[2*U5*/case4:**/output_sel|=0x08;ADDR_8SEGNUMTOSEG7(digi[3*U5*/}ADDR_SEL=output_sel; /*U6（在电路图中找）*/if(t==0){}{}

if(d_ptr>=N)for(j1=0;j1<N;j1++)//current_temp=get_temp//current_temp=//current_temp=if(wait2s==1)cnt2s++;if(wait4s==1)cnt4s++;if(wait1s==1)cnt1s++; if(wait5s==1)cnt5s++; if(m=={if(cnt>={flag2=cnt=0;m=}}{

if(cnt>={flag2=cnt=0;m=}} //TR1=}timer1()interrupt{} ()interrupt4using{{switch{case0:if{}case1:if(Message==0x7e)RCount=0;elseif{if(Message==0x0d){if(RCount>=13&&RCount%2==1)rec_end=1;elseread_state=1;}}}}

elseread_state=0;void{iftime==50)//{if {if(mode==0mode=elseif(mode==1)mode=0;}elseif {if(mode==0{if(aim_temp<aim_temp=aim_temp+}}elseif {if{if(aim_temp>aim_temp=aim_temp-}}elseif{if{if(aim_temp>aim_temp=aim_temp-}}}}

time/****int{/**//****//****//**SCON=0x50;/*SCOMMODE1(8BITUARTVARBR)*//*8255LCD*//****//**0**/TR1= {for(j1=0;j1<N;j1++)current_temp=get_temp(AD_data);if(offflag==0){heat=1;flag=Off;}elseif(offflag){))//{reachflag=0;flag=}// {reachflag=0;}{reachflag=0;flag=SlowHeat;{}else{}}{reachflag=flag=SlowestHeat;{}else{}}//1s{reachflag=flag=SlowestHeat;{}else{}}elseif{if(current_temp==aim_temp)reachflag=1;reachflag=flag=KeepWarm;heat=1;}}if(current_temp=={digi[2]='-';//current_temp/10;received.ADDR;digi[3]='-';//current_temp%10;SLAVE;}elseif(current_temp=={}{}

digi[2]='-';//current_temp/10;received.ADDR;digi[3]='-';//current_temp%10;SLAVE;digi[2]=current_temp/10;//current_temp/10;received.ADDR;digi[3]=current_temp%10;//current_temp%10;SLAVE;//digi[0]=AD_data///digi[1]=(AD_data%100)///digi[2]=(AD_data%100)%//digi[3]=0;switch(state){caseif(rec_end)if((received.ADDR==SLAVE)&&(mode==1))if(error)tosend=init_rs422(MASTER,3,error,0,NULL);else{switch{casecase1:offflag=(received.CMD2_RTN)?1:0;caseINFO[0]=(reachflag)?0x01:0x00;casecase}}}{}}case1:switchcasecase2:}default:break;}//TR1=0;if(sending==1){if(SendData[SCount]==0x0d){}}if(flag2==1{if(m==0flag2=}}}#ifndef#define#defineVERSION0x10#defineucharunsignedchar#defineuintunsignedint#include/*定义串行通行协议 {uchar /*uchar /*uchar /*uchar /*1/uchar /*2/ucharLENGTH; /*数据段字节长度*/ucharINFO[4]; /*数据段*/ucharCHKSUM; /*校验和*/ucharEOI; /*结束标志*/typedef /*初始化RS_422 uchartransH(uchar{uintucharj=(m-if(j>9)mchar=(unsignedchar)(j+48);returnmchar;}uchartransL(uchar{uintucharmchar;j=m%16;if(j>9)mchar=(unsignedchar)(j+48);returnmchar;}ucharunite(ucharh,ucharl){ucharmchar;mchar=(unsignedchar)(h*16+l);returnmchar;}RS_422init_rs422(ucharADDR,ucharCMD1,ucharCMD2,ucharLENGTH,uchar*{RS_422rs;uintj;ucharmchar;rs.SOI=0x7e;rs.VER=VERSION;rs.ADDR=ADDR;rs.CMD1_RSPD=CMD1;rs.CMD2_RTN=CMD2;rs.LENGTH=LENGTH;rs.EOI=mchar=for(j=0;j<rs.LENGTH;j++)mchar+=rs.INFO[j];rs.CHKSUM=(unsignedchar)(~(mchar%256)+1);returnrs;}#ifndefLCD_CHAR_1602_2005_4_9#defineLCD_CHAR_1602_2005_4_9#include<intrins.h> #define#define#define#define#define#define eAdjust//#define //#define /*unsignedcharcurrent_temp=/*unsignedcharaim_temp=voidDelay1ms(unsignedint{unsignedinti,j;}#define #define sbit/*8255*/voidINIT_8255(){RST8255=0;//8255工作CTRL8255=0x80;//0，ABC三口输出Delay1ms(4040ms8255写入控制字}//PortDefinitions**********************************************************sbitLcdRs =P3^5;sbitLcdRw =P3^4;sbitLcdEn =P3^3; unsignedcharLCD_Wait(void){ return}//向LCD写入命令或数据************************************************************ //Command#defineLCD_DATA //Data#defineLCD_CLEAR_SCREEN0x01 //清屏#define //voidLCD_Write(bitstyle,unsignedchar{ }#define#define#define#define#define#definevoidLCD_SetDisplay(unsignedchar{ MAND,}#defineLCD_AC_UP #defineLCD_AC_DOWN //default#defineLCD_MOVE //画面可平移#defineLCD_NO_MOVE voidLCD_SetInput(unsignedcharInputMode){ MAND,}voidLCD_Initial() //8位数据端口,2行显示,5*7 //开启显示, // //AC递增,}/**voidGotoXY(unsignedcharx,unsignedchar{ }/**LCDvoidPrint(unsignedchar{{}}unsignedcharxdata/**intstringvoidIntToStr(unsignedchart,unsignedchar*str,unsignedchar{unsignedchara[3];chari,j; for(i=0;i<3; //转成ASCIIfor(i=0;a[i]=='0'&&i<=3;for(j=3-n;j<i {*str=''; str++;}for(;i<3;i++)*str=a[istr }/*LCD显示的信息voidLCD_Disp(unsignedchar{switch{casePrint("currentstate: etoPrint("ByDRSLLPY Print("currentstate: FastHeat Print("currentstate: SlowHeat caseSlowestHeat:// Print("currentstate: SlowestHeat case if(current_temp==29){Print("unreachthirty}elseif(current_temp==100{}{

Print("overnintyninePrint("cur