實用室溫監(jiān)測系統(tǒng)設(shè)計ppt課件

1、適用室溫監(jiān)測系統(tǒng)設(shè)計胡勇 huyonggopublic1.sz.js 設(shè)計要求： 1,測溫傳感頭運用IN4148。 2,丈量范圍：0-100度 3,具有超限報警功能繼電器輸出 可設(shè)定上限值、下限值， 設(shè)定數(shù)據(jù)斷電保管。 4,盡可少的輸入鍵設(shè)計,最好2鍵設(shè)計。設(shè)計任務(wù):1， 二極管及調(diào)理模塊硬件設(shè)計各級信 號的匹配2， 鍵盤與顯示軟件界面設(shè)計，進(jìn)入設(shè) 置后，輸入位閃爍，停頓輸入后一會 兒自動保管數(shù)據(jù)3， AD模塊軟件設(shè)計.4， 設(shè)定值如何自動寫入、讀出軟件設(shè)計.丈量系統(tǒng)構(gòu)造圖被測對象MCU顯示按鍵模擬量處理AD傳感器非電量電量報警調(diào)理模塊溫度mV信號AD轉(zhuǎn)換模塊數(shù)字量輸出模塊鍵盤模塊AT24C0

2、2單片機(jī)模塊I2C總線模塊LCD模塊8155 測溫傳感器設(shè)計目前常用的測溫傳感 1，低溫DS18B20器件 2，高溫 熱電偶，熱電阻測溫傳感器： IN4148溫度特性半導(dǎo)體二極管的溫度特性w溫度升高時，二極溫度升高時，二極管的正向壓降將減管的正向壓降將減小，每添加小，每添加11，正，正向壓降向壓降VFVF大約減小大約減小2mV2mV，即具有負(fù)的溫，即具有負(fù)的溫度系數(shù)。右圖所示度系數(shù)。右圖所示二極管的伏安特性二極管的伏安特性曲線。曲線。 前置測溫調(diào)理電路原理圖U1OP07U2OP07U3OP07D1IN4148R110kR210kR310kR510kR410kR610kRg5kR81kVCCW2

3、5KR7470VoutUA431VCC+12V+12V-12V-12VE1100UE2100UL1REDL2BLUER81KR91K+12V-12VE3100U-12V+12V調(diào)實驗箱管腳定義+5v+5v-12v-12v+12v+12vGNDGND+5v+5vCH1CH2CH3CH4GNDGND焊接測溫模塊輸入顯示界面設(shè)計1, 2鍵設(shè)計，其中1鍵移位，1鍵用于數(shù)值如何較正溫度? 添加。2, 數(shù)據(jù)如何寫入?3, 顯示器如何提示程序是在設(shè)置界面? 以及正在修正的位置。前級放大電路設(shè)計選用w運放同相、反相放大器的優(yōu)缺陷。w基準(zhǔn)源器件的選用。w運放的選用單片機(jī)軟件要留意的問題：運用中斷的優(yōu)缺陷何時用定

4、時器如何擴(kuò)展數(shù)據(jù)空間提高運轉(zhuǎn)速度的方法何時處置多義務(wù)調(diào)度運用模塊電源模塊(7805,7812,7912)單片機(jī)模塊(STC89C58RD)LCD模塊(LCD1602)鍵盤模塊調(diào)理模塊(OP07)AD模塊(TLC1543)I2C模塊24C02)數(shù)字量輸入、輸出模塊繼電器I/O擴(kuò)展模塊8155調(diào)理模塊電路圖R9/ 10KR21/10KR13/5.1KR8/2KR10/2KR11/2KR12/5.1KR14/ 0RRPTD1/3.6VC7/104P12J3123J2123J1W2/1KW3TRIM1-IN2+IN3V-4NC5OUT6V+7VOS8U1/0P07TRIM1-IN2+IN3V-4NC5

5、OUT6V+7VOS8U2/OP07TRIM1-IN2+IN3V-4NC5OUT6V+7VOS8U3/OP071TP11TP31TP21234567891011121314151617181920J51234567891011121314151617181920J4VCCVCCVCCVCC+12V-12V+12V-12VMCU電路圖Y111.0592C10130PC10030PC1104C2104E122uFK1SW-PBR11KR2200R123456789RX14.7KP101P112P123P134P145P156P167P178INT012INT113T014T115EA/VP31X1

6、19X218RESET9WR16RD17PSEN29ALE30TXD11RXD10P0039P0138P0237P0336P0435P0534P0633P0732P2021P2122P2223P2324P2425P2526P2627P2728VCC40GND20U189C52D03D14D27D38D413D514D617D718Q02Q15Q26Q39Q412Q515Q616Q719VCC20OE1GND10LE11U274LS373VCCVCCVCCVCCVCCVCC1234567891011121314151617181920212223242526J212345678910111213

7、14151617181920212223242526J112JP112JP212JP4CON212JP3VCC12J312J412J512J612J712J812J912J1012J1112J1212J1312J1412J1612J1712J1812J1912J2012J2112J2212J2312J2412J2512J2612J2712J2812J2912J3012J3112J3212J3312J3412J15P1,0P1,1P1,2P1,3P1,4P1,5P1,6P1,7RSTTXDINT1T1RDWRT0INT0RXDP0.1P0.0P0.3P0.2P0.5P0.4P0.7P0.6A1A

8、0A2ALEP2.7P2.5P2.3P2.1P2.2P2.4P2.6P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7EAP2.0A0A1A2P1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.7INT1INT0P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7P2.0P2.1P2.2P2.3P2.4P2.5P2.6P2.7RXDTXDT1T0RSTRDWRAD電路圖1234J11234J212JP312J3R 50RR 41KC 1104PC 2104PC 3104PA 01A 12A 23A 34A 45A 56A 67A 78A 89G N D10A

9、 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 CV C CV C

10、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電路圖12J1C1104R1/10RGND1VDD2VO3RS4RW5E6DB07DB18DB29DB310DB411DB512DB613DB714BL115BL216U2VCCVCCVCC12345678910111213141516171819202

11、12223242526JP2HEADER 13X21234567891011121314151617181920212223242526JP1VCCVCCD0D1D2D3D4D5D6D7D0D1D2D3D4D5D6D7RSRSRWRWEELCD1602RE(P1.5),RW(P1.6),E(P1.7)D0.D7(8155 PA)8155電路圖C1104VCCVCCVCCVCCAD012AD113AD214AD315AD416AD517AD618AD719CE8RD9WR10IO/M7ALE11TMROUT6TMRIN3RESET4PC037PC138PC239PC31PC42PC55PA021

12、PA122PA223PA324PA425PA526PA627PA728PB029PB130PB231PB332PB433PB534PB635PB736GND20VCC40U1/ M81C55-51234567891011121314151617181920212223242526J11234567891011121314151617181920212223242526J2123456789RK10KPC0PC2PC4AD0AD2AD4AD6RESTCEWRRDIO/MALEAD7AD5AD3AD1PC5PC3PC1PB7PB5PB3PB1PA7PA5PA3PA1PB4PB2PB0PA6PA4P

13、A2PA0PB6SS11SS22SS33SS55SS44SS66SS1SS2SS3SS4SS5SS6SS7SS8ZAZBZCZDZEZFZGZHPC0PC1PC2PC3PC4PC5PA0PA1PA2PA3PA4PA5PA6PA7PB0PB1PB2PB3PB4PB5PB6PB7SSXX(KEY) PA(LCD)PB(LED no use)KEY電路圖S1S2S3S4S5S6S7S8S9S10S11S12S13S14S15S161234567891011121314151617181920212223242526J212345678910111213141516171819202122232425

14、26J1VCCVCCSS1SS2SS3SS4SS11SS12SS13SS14(8155 PC)24C02電路圖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 1/24C02OSCI1OSCO2INT

15、3VSS4SDA5SCL6CLKOUT7VDD8U 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)繼電器電路圖112233445566778899101011111212131314141

16、51516161717181819192020J311223344556677889910101111121213131414151516161717181819192020J512J112J712J2123J6123J412345J8A1K2D3/1N4007B2C1E3Q3/9013Q1/9013A1K2C3E4OPT/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 17/330RR 1

17、3/0RR 14/2KR 12/0RR 20/330R1122334455667788991010111112121313141415151616TLP521-411223344556677889910101111121213131414U2/74HC 021122334455JDQ1/DC 5VVC CVC CVC CVC CVC CVC C電源電路圖C12104C8104C4104C10104C2104C6104F2F3C1116V/470uFC716V/470uFC316V/1000uFC935V/470uFC135V/1000uFC535V/470uFAC2V+1AC3V-4D2/BD

18、1F1T2Vin1GND2+12V3U27812Vin2GND1-12V3U37912Vin1GND2+5V3U17805-12V+12V+5V1234567891011121314151617181920J11234567891011121314151617181920J212J3+5VR11R-12V+12V+12V-12VAC1AC2AC1AC2AC1AC2AC220V串行接口電路圖R3/NCR4120RC13/NCC17/104PC14/104PC5/NCC18/NCC7/104PC19/NCC6/104PC16/104PC15/104PX2/NC162738495J512J101234P2VCC16V+2V-6T1OUT14T2OUT7R1IN13R2IN8C1+1C1-3C2+4C2-5T1IN11T2IN10R1OUT12R2OUT9GND15U2MAX232RO1RE2DE3DI4GND5A6B7VCC8U5MAX4851122334455667788991010111112121313141415151