基于GSM短信模塊的定位跟蹤系統(tǒng)設(shè)計(jì)實(shí)現(xiàn)
標(biāo)簽: GSM 短信模塊 定位 跟蹤系統(tǒng)
上傳時(shí)間: 2013-10-27
上傳用戶:1417818867
基于單片機(jī)溫度控制系統(tǒng)的硬件設(shè)計(jì)
標(biāo)簽: 單片機(jī) 溫度控制系統(tǒng) 硬件設(shè)計(jì)
上傳時(shí)間: 2014-01-14
上傳用戶:cx111111
基于軟PLC和Web的現(xiàn)場總線遠(yuǎn)程監(jiān)控
標(biāo)簽: PLC Web 軟 現(xiàn)場總線
上傳時(shí)間: 2013-11-15
上傳用戶:牛布牛
基于單片機(jī)拖拉機(jī)性能測試儀的研究
標(biāo)簽: 單片機(jī) 拖拉機(jī) 性能測試儀
上傳時(shí)間: 2014-12-26
上傳用戶:zjf3110
基于89C52單片機(jī)和DS1302的萬年歷設(shè)計(jì).
標(biāo)簽: 89C52 1302 DS 單片機(jī)
上傳時(shí)間: 2013-11-23
上傳用戶:shenlan
針對目前采用的熱敏電阻測量方法,提出了采用單總線數(shù)字式溫度傳感器DS18B20和單片機(jī)組成的新型溫度測量儀。介紹DS18B20的結(jié)構(gòu)和工作原理,以及單總線工作原理,給出了由Mega8單片機(jī)和DS18B20構(gòu)成的單總線溫度測量儀的硬件電路及軟件流程圖。經(jīng)試驗(yàn)基于單總線器件DS18B20的溫度測量儀,具有測量準(zhǔn)確、測溫范圍寬、體積小、控制方便等優(yōu)點(diǎn)。 Abstract: This paper brings forward a new temperature meter composed of 1-Wire temperature sensor DS18B20 and MCU which has advantage of the thermistor. In the article, the DS18B20's structure and controlling principles are introduced and hardware circuit and software diagram of the temperature meter are given.After been tested,the temperature meter has the advantages of accurate measurement, wide temperature range, small volume and convenient controlling.
上傳時(shí)間: 2013-10-31
上傳用戶:hzy5825468
為了在工業(yè)生產(chǎn)及過程控制中準(zhǔn)確測量溫度,設(shè)計(jì)了一種基于低功耗MSP430單片機(jī)的數(shù)字溫度計(jì)。整個(gè)系統(tǒng)通過單片機(jī)MSP430F1121A控制DS18B20讀取溫度,采用數(shù)碼管顯示,溫度傳感器DS18B20與單片機(jī)之間通過串口進(jìn)行數(shù)據(jù)傳輸。MSP430系列單片機(jī)具有超低功耗,且外圍的整合性高,DS18B20只需一個(gè)端口即可實(shí)現(xiàn)數(shù)據(jù)通信,連接方便。通過多次實(shí)驗(yàn)證明,該系統(tǒng)的測試結(jié)果與實(shí)際環(huán)境溫度一致,除了具有接口電路簡單、測量精度高、誤差小、可靠性高等特點(diǎn)外,其低成本、低功耗的特點(diǎn)使其擁有更廣闊的應(yīng)用前景。 Abstract: In order to obtain accurate measuring temperature in industrial production and process control, a digital thermometer based on MSP430 MCU is designed. The system uses MSP430F1121A MCU to control DS18B20, and gets the temperature data, which is displayed on the LED. The temperature sensor DS18B20 and MCU transmit data through serial communication. MSP430 series has ultra-low power and high integration, DS18B20 only needs one port to achieve data communication. Through many experimental results prove, this system is consistent with actual environment temperature. The system has characteristics of interface circuit simple, high measuring accuracy, minor error, high reliability, besides, the characteristics of low cost and low power make it having vaster application prospect.
上傳時(shí)間: 2013-10-16
上傳用戶:wettetw
摘要:討論了MCS一51單片機(jī)匯編語言中的偽指令,并介紹若干主要的經(jīng)常用到的偽指令使用方法。關(guān)鍵詞:單片機(jī);偽指令;ORG;EQU;DB;DW;BIT
上傳時(shí)間: 2013-12-21
上傳用戶:283155731
摘要:根據(jù)紅光和紅外光透過手指后光吸收量變化的特點(diǎn).本文研究了基于單片機(jī)AT89C52的血流信號采集系統(tǒng)。該文設(shè)計(jì)了血流信號檢測電路,研究了四點(diǎn)累加平均濾波和五點(diǎn)滑動平均濾波算法,有效的濾除了信號的高頻噪聲.克服了因個(gè)人生理差異引起的信號基線漂移、易飽和等問題。通過VB編程,實(shí)現(xiàn)了單片機(jī)和PC機(jī)之間的串行通信。關(guān)鍵詞:單片機(jī);血流信號;信號采集;串行通信
上傳時(shí)間: 2013-11-04
上傳用戶:xmsmh
摘要:介紹一種基于單片機(jī)AT89C51和V/F轉(zhuǎn)換器LM331的壓力數(shù)據(jù)采集系統(tǒng),該系統(tǒng)以AT89C51單片機(jī)為核心,實(shí)時(shí)測量由壓力傳感器MPXV5004G檢測的壓力。與傳統(tǒng)電路設(shè)計(jì)相比較,其外部硬件電路少,結(jié)構(gòu)簡單,無較大的時(shí)延。只要對其功能進(jìn)行擴(kuò)展,能夠?qū)崿F(xiàn)相應(yīng)控制。關(guān)鍵詞:壓力傳感器,V/F轉(zhuǎn)換器,單片機(jī),頻率測量,LM331
上傳時(shí)間: 2013-10-09
上傳用戶:atdawn
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