無(wú)線數(shù)顯溫度計(jì)的設(shè)計(jì)

1、北京大學(xué)畢業(yè)設(shè)計(jì)演講稿無(wú)線數(shù)顯溫度計(jì)的設(shè)計(jì)n班級(jí)：班級(jí)：n學(xué)生：學(xué)生：n學(xué)號(hào)：學(xué)號(hào)： 隨著社會(huì)的進(jìn)步和發(fā)展以及生產(chǎn)的需求，利用無(wú)線通信技術(shù)進(jìn)行溫度數(shù)據(jù)遠(yuǎn)距離采集的方式已經(jīng)越來(lái)越被廣泛的應(yīng)用于各個(gè)領(lǐng)域。而且溫度測(cè)量的準(zhǔn)確度及結(jié)構(gòu)的簡(jiǎn)化程度也對(duì)生產(chǎn)效益有很大影響。在工農(nóng)業(yè)生產(chǎn)現(xiàn)場(chǎng)，甚至在日常生活中，也會(huì)有許多需要進(jìn)行溫度的測(cè)量以及范圍性監(jiān)控的地方。眾所周知，可能會(huì)有種種外界環(huán)境條件的限制，例如高溫、礦井等等人類(lèi)難以接觸的環(huán)境。傳統(tǒng)的溫度計(jì)已經(jīng)不能滿足測(cè)量要求。這個(gè)時(shí)候我們就需要一個(gè)可以遠(yuǎn)程測(cè)量和數(shù)字顯示的溫度計(jì)整體電路原理框圖發(fā)射模塊電路發(fā)射模塊電路：發(fā)射模塊電路由數(shù)字溫度傳感器DS18B20進(jìn)行

2、溫度采集，AT89S52作為中央控制并處理采集數(shù)據(jù)，最后由無(wú)線通信芯片NRF24L01發(fā)射調(diào)解后的信號(hào)。接收模塊電路接收模塊電路：接收模塊電路由NRF24L01接收從發(fā)射模塊發(fā)射的信號(hào)，并將信號(hào)傳輸給AT89S52，由單片機(jī)處理接收到的信號(hào)，最后用LCD1602數(shù)字式的顯示溫度值。發(fā)射模塊電路設(shè)計(jì) 發(fā)射模塊電路主要由溫度信號(hào)采集電路和信號(hào)發(fā)射電路兩部分組成。溫度采集電路由數(shù)字溫度傳感器DS18B20及其簡(jiǎn)單的外圍電路組成，因?yàn)閭鞲衅鬏敵龅氖菙?shù)字信號(hào)，所以可以直接和單片機(jī)端口直接相連；信號(hào)發(fā)射模塊電路由無(wú)線通信芯片NRF24L01及其外圍電路組成，NRF24L01也是可以直接和單片機(jī)端口相連接的

3、。發(fā)射模塊電路設(shè)計(jì)溫度采集電路圖中溫度傳感器的輸出端口直接連接在單片機(jī)的P1.1口上。EA/VPP31XTAL119XTAL218RST9P37/RD17P36/WR16P32/INT012P33/INT113P34/T014P35/T115P10/T21P11/T2EX2P123P134P145P15(MOSI)6P16(MISO)7P17(SCK)8AD0/P0039AD1/P0138AD2/P0237AD3/P0336AD4/P0435AD5/P0534AD6/P0633AD7/P0732A8/P2021A9/P2122A10/P2223A11/P2324A12/P2425A13/P25

4、26A14/P2627A15/P2728PSEN29ALE/PROG30P31/TXD11P30/RXD10GND20VCC40U1AT89S52+5VP00P01P02P03P04P05P06P07SCKMICECSNMOIRQ123J1DS18B20+5V溫度傳感器R14k7發(fā)射模塊電路設(shè)計(jì)信號(hào)發(fā)射電路圖中NRF24L01的功能端口也直接連接在單片機(jī)的P2.0到P2.2， P2.6到P2.8口。值的注意的是NRF 24L01的供電電壓為3.3V。由AMS1117穩(wěn)壓模塊提供此電壓。EA/VPP31XTAL119XTAL218RST9P37/RD17P36/WR16P32/INT012P33

5、/INT113P34/T014P35/T115P10/T21P11/T2EX2P123P134P145P15(MOSI)6P16(MISO)7P17(SCK)8AD0/P0039AD1/P0138AD2/P0237AD3/P0336AD4/P0435AD5/P0534AD6/P0633AD7/P0732A8/P2021A9/P2122A10/P2223A11/P2324A12/P2425A13/P2526A14/P2627A15/P2728PSEN29ALE/PROG30P31/TXD11P30/RXD10GND20VCC40U1AT89S52+5V+5VP00P01P02P03P04P05P

6、06P0712345678910J9NRF2401+3.3VIRQMIMOSCKCSNCER41KR31KR61KR71KR51KR81KSCKMICECSNMOIRQ123U3AMS11 17-3 .3+3 .3 V+5 VC60.1u FC733 uF/25 V接收模塊電路設(shè)計(jì)接收模塊電路設(shè)計(jì)接收模塊電路設(shè)計(jì)接收模塊電路設(shè)計(jì)12345678910J5NRF240 1+3 .3 VIRQAMMISOMOSISCKCSNCEEA/VPP31XTAL119XTAL218RST9P3 7/RD17P3 6/WR16P3 2/INT012P3 3/INT113P3 4/T014P3 5/T115P1

7、 0/T21P1 1/T2EX2P1 23P1 34P1 45P1 5(MOSI)6P1 6(MISO)7P1 7(SCK)8AD0 /P0039AD1 /P0138AD2 /P0237AD3 /P0336AD4 /P0435AD5 /P0534AD6 /P0633AD7 /P0732A8/P2021A9/P2122A10/P2 223A11/P2 324A12/P2 425A13/P2 526A14/P2 627A15/P2 728PSEN29ALE/PROG30P3 1/TXD11P3 0/RXD10GND20VCC40U1AT89 S52RESTP1 5P1 6P1 7P3 0P3 1P

8、3 3P3 4P3 5P3 6P3 7P3 2P1 2P1 4P1 3P1 1P0 0P0 1P0 2P0 3P0 4P0 5P0 6P0 7R41KR31KR61KR71KR51KR81KNRF24L0 1無(wú)線接收模塊P1 0SCKMISOCECSNMOSIIRQAM123U3AMS11 17-3 .3+3 .3 V+5 VC60.1u FC733 uF/25 V接收模塊電路設(shè)計(jì)接收模塊電路設(shè)計(jì)EA/VPP31XTAL119XTAL218R ST9P3 7/RD17P3 6/WR16P3 2/INT012P3 3/INT113P3 4/T014P3 5/T115P1 0/T21P1 1/T2

9、EX2P1 23P1 34P1 45P1 5(MOSI)6P1 6(MISO)7P1 7(SC K)8AD0 /P0039AD1 /P0138AD2 /P0237AD3 /P0336AD4 /P0435AD5 /P0534AD6 /P0633AD7 /P0732A8/P2021A9/P2122A10/P2 223A11/P2 324A12/P2 425A13/P2 526A14/P2 627A15/P2 728PSEN29ALE/PR OG30P3 1/TXD11P3 0/RXD10GND20VCC40U1AT89 S52R EST+5 V+5 VP1 5P1 6P1 7P3 0P3 1P3

10、3P3 4P3 5P3 6P3 7P3 2P1 2P1 4P1 3P1 1P0 0P0 1P0 2P0 3P0 4P0 5P0 6P0 712345678910111213141516J316 02VSSVDDV0R SR /WEDB0DB1DB2DB3DB4DB5DB6DB7B LAB LKVCCVCCP3 2P3 1P1 0P1 0P1 1P1 2P1 3P1 4P1 5P1 6P1 71602液晶P3 0SCKMICECSNMOIRQR 12k整體電路原理圖發(fā)射模塊123U2AMS11 17-3.3+3 .3 V+5 VC 60.1u FC 733 uF/25 VEA/VP P31XTA

11、L119XTAL218R ST9P3 7/RD17P3 6/W R16P3 2/INT012P3 3/INT113P3 4/T014P3 5/T115P1 0/T21P1 1/T2EX2P1 23P1 34P1 45P1 5(MOS I)6P1 6(MIS O)7P1 7(SC K)8AD0 /P 0039AD1 /P 0138AD2 /P 0237AD3 /P 0336AD4 /P 0435AD5 /P 0534AD6 /P 0633AD7 /P 0732A8/P2021A9/P2122A10/P2 223A11/P2 324A12/P2 425A13/P2 526A14/P2 627A15

12、/P2 728PS EN29ALE/PR OG30P3 1/TXD11P3 0/RXD10GND20VCC40U1AT89 S52R 210 kC 333 PC 233 PY112 MVCCC 110 uF/25 V+5 V+5 VP0 0P0 1P0 2P0 3P0 4P0 5P0 6P0 712345678910J9NRF 240 1+3 .3 VIRQMIMOSC KC SNC ER 41KR 31KR 61KR 71KR 51KR 81KSCKMICECSNMOIRQR ST1123J1DS18 B2 0+5 V溫度傳感器R 14k 712J3C ON3+5 V外部供電LED2LEDR

13、 61KVCC整體電路原理圖接收模塊12345678910J5NRF 240 1+3 .3 VIRQAMMISOMOSISC KC SNTR X_C EEA/VP P31XTAL119XTAL218R ST9P3 7/RD17P3 6/WR16P3 2/INT012P3 3/INT113P3 4/T014P3 5/T115P1 0/T21P1 1/T2EX2P1 23P1 34P1 45P1 5(MOS I)6P1 6(MIS O)7P1 7(SC K)8AD0 /P 0039AD1 /P 0138AD2 /P 0237AD3 /P 0336AD4 /P 0435AD5 /P 0534AD6

14、/P 0633AD7 /P 0732A8/P2021A9/P2122A10/P2 223A11/P2 324A12/P2 425A13/P2 526A14/P2 627A15/P2 728PS EN29ALE/PR OG30P3 1/TXD11P3 0/RXD10GND20VCC40U1AT89 S52R 210 kC 433 PR ESTC 333 PY212 M+5 VC 110 uF/25 V+5 V+5 VP1 5P1 6P1 7P3 0P3 1P3 3P3 4P3 5P3 6P3 7P3 2P1 2P1 4P1 3P1 1P0 0P0 1P0 2P0 3P0 4P0 5P0 6P0 7R 41KR 31KR 61KR 71KR 51KR 81K123U3AMS11 17-3.3+3 .3 V+5 VC 60.1u FC 733 uF/25 VNR F24L01無(wú)線接收模塊12345678910111213141516J316 02VSSVDDV0R SR /WEDB0DB1DB2DB3DB4DB5DB6DB7B LAB LKVCCVCCP3 2P3 1P1 0P1 0P1 1P1 2P1 3P1 4P1 5P1 6P1 71602液晶P3 0SCKMICECSNMOIRQR ST1R 12k12J3C ON3+5 V外 部 供 電整體