实用室温监测系统设计ppt课件

1、实用室温监测系统设计胡勇 huyonggopublic1.sz.js 设计要求： 1,测温传感头使用IN4148。 2,测量范围：0-100度 3,具有超限报警功能继电器输出） 可设定上限值、下限值， 设定数据断电保存。 4,尽可少的输入键设计,最好2键设计。设计工作:1， 二极管及调理模块硬件设计各级信 号的匹配）2， 键盘与显示软件界面设计，（进入设 置后，输入位闪动，停止输入后一会 儿自动保存数据）3， AD模块软件设计.4， 设定值如何自动写入、读出软件设计.测量系统结构图被测对象MCU显示按键模拟量处理AD传感器非电量电量报警调理模块温度mV信号AD转换模块数字量输出模块键盘模块AT

2、24C02单片机模块I2C总线模块LCD模块8155 测温传感器设计目前常用的测温传感 1，低温DS18B20器件） 2，高温 （热电偶，热电阻）测温传感器： IN4148温度特性半导体二极管的温度特性w温度升高时，二极温度升高时，二极管的正向压降将减管的正向压降将减小，每增加小，每增加11，正，正向压降向压降VFVF大约减小大约减小2mV2mV，即具有负的温，即具有负的温度系数。右图所示度系数。右图所示二极管的伏安特性二极管的伏安特性曲线。曲线。 前置测温调理电路原理图U1OP07U2OP07U3OP07D1IN4148R110kR210kR310kR510kR410kR610kRg5kR8

3、1kVCCW25KR7470VoutUA431VCC+12V+12V-12V-12VE1100UE2100UL1REDL2BLUER81KR91K+12V-12VE3100U-12V+12V调试验箱管脚定义+5v+5v-12v-12v+12v+12vGNDGND+5v+5vCH1CH2CH3CH4GNDGND焊接测温模块输入显示界面设计1, 2键设计，其中1键移位，1键用于数值如何较正温度? 添加。2, 数据如何写入?3, 显示器如何提示程序是在设置界面? 以及正在修改的位置。前级放大电路设计选用w运放同相、反相放大器的优缺点。w基准源器件的选用。w运放的选用单片机软件要注意的问题：使用中断的

4、优缺点何时用定时器如何扩展数据空间提高运行速度的办法何时处理多任务调度使用模块电源模块(7805,7812,7912)单片机模块(STC89C58RD)LCD模块(LCD1602)键盘模块调理模块(OP07)AD模块(TLC1543)I2C模块24C02)数字量输入、输出模块继电器）I/O扩展模块8155）调理模块电路图R9/ 10KR21/10KR13/5.1KR8/2KR10/2KR11/2KR12/5.1KR14/ 0RRPTD1/3.6VC7/104P12J3123J2123J1W2/1KW3TRIM1-IN2+IN3V-4NC5OUT6V+7VOS8U1/0P07TRIM1-IN2+

5、IN3V-4NC5OUT6V+7VOS8U2/OP07TRIM1-IN2+IN3V-4NC5OUT6V+7VOS8U3/OP071TP11TP31TP21234567891011121314151617181920J51234567891011121314151617181920J4VCCVCCVCCVCC+12V-12V+12V-12VMCU电路图Y111.0592C10130PC10030PC1104C2104E122uFK1SW-PBR11KR2200R123456789RX14.7KP101P112P123P134P145P156P167P178INT012INT113T014T115

6、EA/VP31X119X218RESET9WR16RD17PSEN29ALE30TXD11RXD10P0039P0138P0237P0336P0435P0534P0633P0732P2021P2122P2223P2324P2425P2526P2627P2728VCC40GND20U189C52D03D14D27D38D413D514D617D718Q02Q15Q26Q39Q412Q515Q616Q719VCC20OE1GND10LE11U274LS373VCCVCCVCCVCCVCCVCC1234567891011121314151617181920212223242526J212345678

7、91011121314151617181920212223242526J112JP112JP212JP4CON212JP3VCC12J312J412J512J612J712J812J912J1012J1112J1212J1312J1412J1612J1712J1812J1912J2012J2112J2212J2312J2412J2512J2612J2712J2812J2912J3012J3112J3212J3312J3412J15P1,0P1,1P1,2P1,3P1,4P1,5P1,6P1,7RSTTXDINT1T1RDWRT0INT0RXDP0.1P0.0P0.3P0.2P0.5P0.4P0

8、.7P0.6A1A0A2ALEP2.7P2.5P2.3P2.1P2.2P2.4P2.6P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7EAP2.0A0A1A2P1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.7INT1INT0P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7P2.0P2.1P2.2P2.3P2.4P2.5P2.6P2.7RXDTXDT1T0RSTRDWRAD电路图1234J11234J212JP312J3R 50RR 41KC 1104PC 2104PC 3104PA 01A 12A 23A 34A 45A 56A 67A 78A 8

9、9G N D10A 911A 1012R E F-13R E F+14C S15O U T16A D D R E SS17C L O C K18E O C19V C C20U 1/T L C 1543D IN1C L K2C S3D 04A G N D5R E F6O U T7V C C8IC 1/T L C 5615R 21K1234567891011121314151617181920212223242526JP11234567891011121314151617181920212223242526JP2W R 110KV C CZ 1T L 431V C CV C CV C CV C C

10、V C CV C CIN 1IN 3IN 2IN 4D _IND _O U TI/O C L KT L C 5615_C ST L C 1543_C SA DD AT L C 1543_C SD _IN P2.3D _O U T P2.5I/O C L K P2.4A D _C S P2.7D A _C S P2.6to P1.1D _O U TD _INLCD电路图12J1C1104R1/10RGND1VDD2VO3RS4RW5E6DB07DB18DB29DB310DB411DB512DB613DB714BL115BL216U2VCCVCCVCC12345678910111213141516

11、17181920212223242526JP2HEADER 13X21234567891011121314151617181920212223242526JP1VCCVCCD0D1D2D3D4D5D6D7D0D1D2D3D4D5D6D7RSRSRWRWEELCD1602RE(P1.5),RW(P1.6),E(P1.7)D0.D7(8155 PA)8155电路图C1104VCCVCCVCCVCCAD012AD113AD214AD315AD416AD517AD618AD719CE8RD9WR10IO/M7ALE11TMROUT6TMRIN3RESET4PC037PC138PC239PC31PC42

12、PC55PA021PA122PA223PA324PA425PA526PA627PA728PB029PB130PB231PB332PB433PB534PB635PB736GND20VCC40U1/ M81C55-51234567891011121314151617181920212223242526J11234567891011121314151617181920212223242526J2123456789RK10KPC0PC2PC4AD0AD2AD4AD6RESTCEWRRDIO/MALEAD7AD5AD3AD1PC5PC3PC1PB7PB5PB3PB1PA7PA5PA3PA1PB4PB2P

13、B0PA6PA4PA2PA0PB6SS11SS22SS33SS55SS44SS66SS1SS2SS3SS4SS5SS6SS7SS8ZAZBZCZDZEZFZGZHPC0PC1PC2PC3PC4PC5PA0PA1PA2PA3PA4PA5PA6PA7PB0PB1PB2PB3PB4PB5PB6PB7SSXX(KEY) PA(LCD)PB(LED no use)KEY电路图S1S2S3S4S5S6S7S8S9S10S11S12S13S14S15S161234567891011121314151617181920212223242526J212345678910111213141516171819202

14、12223242526J1VCCVCCSS1SS2SS3SS4SS11SS12SS13SS14(8155 PC)24C02电路图Y 1/32.768C 1/104PC 2/104PC 3/104PC 4/104PR 1/4.7KR 2/4.7KR 61KR 51KR 31KR 41K123J1123J3123456789J2D3/LEDD2/LEDD1/LEDD4/LEDA01A12A23P04P15P26P37VSS8P49P510P611P712INT13SCL14SDA15VDD16U 4/PCF8574PA01A12A23GND4SDA5SCL6WP7VCC8U 1/24C02OSCI

15、1OSCO2INT3VSS4SDA5SCL6CLKOUT7VDD8U 2/PCF8563PVCCSDA1SCL2OS3GND4A25A16A07VCC8U 3/LM75VCCVCCVCCVCCVCCVCC1234567891011121314151617181920J41234567891011121314151617181920J5VCCVCCP3.4P3.5SDASCLA D D R : 1010A D D R : 1010A D D R :1010A D D R :1001SD A (P3.4)SC L (P3.5)继电器电路图112233445566778899101011111212

16、13131414151516161717181819192020J311223344556677889910101111121213131414151516161717181819192020J512J112J712J2123J6123J412345J8A1K2D3/1N4007B2C1E3Q3/9013Q1/9013A1K2C3E4OPT/P521A1K2D2xinhao3GND2Vcc1N1/IR M -3438C 1/104PC 2/104PR 15/10KR 23/5.1KR 22/5.1KR 21/5.1KR 24/5.1KR 18/330RR 16/330RR 19/330RR 1

17、7/330RR 13/0RR 14/2KR 12/0RR 20/330R1122334455667788991010111112121313141415151616TLP521-411223344556677889910101111121213131414U2/74HC 021122334455JDQ1/DC 5VVC CVC CVC CVC CVC CVC C电源电路图C12104C8104C4104C10104C2104C6104F2F3C1116V/470uFC716V/470uFC316V/1000uFC935V/470uFC135V/1000uFC535V/470uFAC2V+1AC

18、3V-4D2/BD1F1T2Vin1GND2+12V3U27812Vin2GND1-12V3U37912Vin1GND2+5V3U17805-12V+12V+5V1234567891011121314151617181920J11234567891011121314151617181920J212J3+5VR11R-12V+12V+12V-12VAC1AC2AC1AC2AC1AC2AC220V串行接口电路图R3/NCR4120RC13/NCC17/104PC14/104PC5/NCC18/NCC7/104PC19/NCC6/104PC16/104PC15/104PX2/NC162738495J512J101234P2VCC16V+2V-6T1OUT14T2OUT7R1IN13R2IN8C1+1C1-3C2+4C2-5T1IN11T2IN10R1OUT12R2OUT9GND15U2MAX232RO1RE2DE3DI4GND5A6B7VCC8U5MAX48511223344556677889910101111121213131414151516