介紹了電力操作電源與智能電池巡檢系統(tǒng)的特點(diǎn)，給出了一種基于超低功耗單片機(jī)MSP430 F149針對(duì)中小型變電站自動(dòng)化運(yùn)行的專用設(shè)備的基本設(shè)計(jì)原理及實(shí)現(xiàn)方法，最后給出了詳細(xì)硬件構(gòu)成和軟件實(shí)現(xiàn)。該系統(tǒng)能滿足中小型變電站安全、可靠、自動(dòng)運(yùn)行的要求，并通過與上位機(jī)的串行通信實(shí)現(xiàn)變電站的遠(yuǎn)程管理和控制。 Abstract: The characters of the intelligent battery data logging system of the electric operation power are introduced.The basic design principle and the implemented methods of the special equipment which only designed for the middle or small transformer substation based on MSP430F149 are prescribed. Finally, the hardware block diagram and the software flow chart are also given. The function that the system finally needs to realize can basically meet with the middle or small transformer substation’s satisfy, reliably,and automatic running.And it can also realize the transformer substation long-distance management and control by serial communicating with the host computer.
上傳時(shí)間： 2013-11-25
上傳用戶：黃華強(qiáng)
為了提高環(huán)境參數(shù)采集的自動(dòng)化水平，提升效率，設(shè)計(jì)了無線傳感器系統(tǒng)。本系統(tǒng)運(yùn)用了傳感器技術(shù)、通信技術(shù)和單片機(jī)技術(shù)，實(shí)現(xiàn)了對(duì)環(huán)境溫度、濕度、光照度以及可燃性氣體濃度等參數(shù)的檢測(cè)。它能夠?qū)崟r(shí)地與上位機(jī)進(jìn)行無線通信，滿足對(duì)環(huán)境參數(shù)實(shí)時(shí)監(jiān)測(cè)的要求。 Abstract: In order to increase the degree of automation and improve the efficiency of the environment monitoring parameters，the wireless sensor system was developed.Combining with the technique of sensor,automatic monitoring，communication and single-chip microcomputer，it realized real-time monitoring environment parameters,such as temperature，humidity，illumination，concentration of com- bustible gas and so on.At the same time it can communicate with upper personal computers，satisfy the desire of real-time monitoring.
上傳時(shí)間： 2013-11-22
上傳用戶：longlong12345678
為解決輸油管道溫度壓力參數(shù)實(shí)時(shí)監(jiān)測(cè)的問題，設(shè)計(jì)了以C8051F930單片機(jī)作為控制核心的超低功耗輸油管道溫度壓力遠(yuǎn)程監(jiān)測(cè)系統(tǒng)?，F(xiàn)場(chǎng)儀表使用高精度電橋采集數(shù)據(jù)，通過433 MHz短距離無線通信網(wǎng)絡(luò)與遠(yuǎn)程終端RTU進(jìn)行通信，RTU通過GPRS網(wǎng)絡(luò)與PC上位機(jī)進(jìn)行遠(yuǎn)程數(shù)據(jù)傳輸，在上位機(jī)中實(shí)現(xiàn)數(shù)據(jù)存儲(chǔ)和圖形化界面顯示，從而實(shí)現(xiàn)輸油管道溫度壓力參數(shù)的實(shí)時(shí)監(jiān)測(cè)和異常報(bào)警。經(jīng)實(shí)驗(yàn)證明，該系統(tǒng)的12位數(shù)據(jù)采集精度滿足設(shè)計(jì)要求，漏碼率小于1%，正常工作時(shí)間超過5個(gè)月，能實(shí)時(shí)有效地監(jiān)測(cè)輸油管道的溫度壓力參數(shù)，節(jié)省大量人工成本，有效預(yù)防管道參數(shù)異常造成的經(jīng)濟(jì)損失和環(huán)境污染。 Abstract: In order to solve the problems on real-time monitoring of pipeline temperature and pressure parameters， the ultra-low power remote pipeline temperature and pressure monitoring system was designed by using the single chip processor C8051F930 as the control core. The high-precision electric bridge was used in field instruments for data collection， the 433MHz short-range wireless communication network was used to make communication between field instrument and RTU， the GPRS was used by the RTU to transmit data to the PC host computer， and the data was stored and displayed in the PC host computer， so the real-time monitoring and exception alerts of pipeline temperature and pressure parameters were achieved. The experiment proves that the system of which error rate is less than 1% over five months working with the 12-bit data acquisition accuracy can effectively monitor the pipeline temperature and pressure parameters in real time， it saves a lot of labor costs and effectively prevents environmental pollution and economic losses caused by abnormal channel parameters.
標(biāo)簽： C8051F930 溫度 壓力 遠(yuǎn)程監(jiān)測(cè)系統(tǒng)
上傳時(shí)間： 2013-11-07
上傳用戶：cuibaigao
針對(duì)船舶氣象儀保障維修而設(shè)計(jì)的船舶氣象儀測(cè)試系統(tǒng)，包括信息處理終端、主儀器檢測(cè)模塊、傳感器檢測(cè)模塊，各個(gè)模塊都采用基于AVR單片機(jī)的嵌入式系統(tǒng)，模塊之間通過CAN總線進(jìn)行通信。結(jié)果表明，船舶氣象儀測(cè)試系統(tǒng)能夠快速檢測(cè)船舶氣象儀故障，與單純依靠人工方式排查故障相比，故障檢測(cè)時(shí)間縮短了60%以上。 Abstract: The test system of ship meteorological instrument was developed to satisfy the maintenance of ship meteorological instruments，which composed of information processing terminal， testing module of main instrument and testing module of sensors. Each of these modules included an embedded system based on microcontroller of AVR series and communicated with other module by CAN bus. The results show that the test system can judge the fault of ship meteorological instrument quickly and shorten the fault detection time as much as 60% compared with simple manual troubleshooting.
標(biāo)簽： AVR 單片機(jī) 氣象儀 測(cè)試系統(tǒng)
上傳時(shí)間： 2013-11-23
上傳用戶：stvnash
Bootloader是微處理器上電時(shí)運(yùn)行的第一段代碼，它可以通過通信接口實(shí)現(xiàn)對(duì)微處理器內(nèi)部應(yīng)用程序的更新升級(jí)，為網(wǎng)絡(luò)化嵌入式產(chǎn)品的應(yīng)用程序升級(jí)帶來極大的便利。由于目前沒有統(tǒng)一嵌入式系統(tǒng)的Bootloader。基于NEC 78K0系列單片機(jī)自編程原理，設(shè)計(jì)出一個(gè)適用于78K0/Fx2系列單片機(jī)的Bootloader，并能夠通過單片機(jī)串口在線升級(jí)應(yīng)用程序。 Abstract: Bootloader is the first piece of code executed after microprocessor startup. It makes the embedded product’s firmware update conveniently through communication interface. However， no unified bootloader is available for all kinds of microprocessor products. Based on the principle of self-programming NEC 78K0s’ series， a useful Bootloader which is suitable for 78K0/Fx2s’ series MCU is designed，the design can update the application through serial ports.
標(biāo)簽： Bootloader MCU 自編程
上傳時(shí)間： 2013-10-26
上傳用戶：fang2010
摘要：介紹了采取專用電平轉(zhuǎn)換芯片MAX232實(shí)現(xiàn)PC機(jī)與MCS51單片機(jī)之間的串行通信的方法．通過對(duì)系統(tǒng)的通信方式選擇89C51通信波特率的設(shè)置、通信的設(shè)置，以及對(duì)接口電路的軟件和硬件的設(shè)計(jì)分析，展示了該電路的實(shí)用性．關(guān)鍵詞：微處理器；PC機(jī)；串行通信；RS-232接口；MAX232芯片
標(biāo)簽： MCS 51 PC機(jī) 單片機(jī)串行
上傳時(shí)間： 2014-01-22
上傳用戶：shizhanincc
摘要:設(shè)計(jì)了基于單片機(jī)的罐道傾角數(shù)據(jù)采集系統(tǒng),介紹了系統(tǒng)的構(gòu)成、工作原理和流程圖,給出了單片機(jī)AT89S52與外圍器件的硬件接口電路。使用匯編語言和VisualBasic設(shè)計(jì)了PC機(jī)與單片機(jī)間的串行通信程序,并提出了數(shù)據(jù)趨勢(shì)曲線的繪制方法。設(shè)計(jì)的數(shù)據(jù)采集系統(tǒng)具有易實(shí)現(xiàn)、易編程、可移植、體積小、功耗低等優(yōu)點(diǎn)。關(guān)鍵詞:單片機(jī);數(shù)據(jù)采集系統(tǒng);罐道傾角;串行通信;VB
標(biāo)簽： 單片機(jī) 串行通信 數(shù)據(jù)采集 系統(tǒng)設(shè)計(jì)
上傳時(shí)間： 2013-11-19
上傳用戶：012345
一、實(shí)驗(yàn)?zāi)康?．了解串行通信的基本知識(shí)；2．掌握用單片機(jī)串行口實(shí)現(xiàn)串行通信的方法。二、實(shí)驗(yàn)器材微機(jī)、示波器、萬用表、電源、AEDK仿真開發(fā)系統(tǒng)，面包板一塊，MAX202C芯片一塊，電容、電阻、導(dǎo)線若干。三、實(shí)驗(yàn)原理此處僅介紹與本實(shí)驗(yàn)內(nèi)容密切相關(guān)的串行通信基本知識(shí)，其它有關(guān)基本知識(shí)介紹請(qǐng)見本講義實(shí)驗(yàn)七。
上傳時(shí)間： 2013-10-17
上傳用戶：hongmo
摘要:本文介紹了TCP/IP協(xié)議、RTL8029的結(jié)構(gòu)特性以及PCI總線協(xié)議的特點(diǎn)，給出了一種用P89C51RD2單片機(jī)控制以太網(wǎng)接口芯片RTL80內(nèi)實(shí)現(xiàn)以太網(wǎng)通信的設(shè)計(jì)方案，闡述了用EMP7128型CPLD實(shí)現(xiàn)單片機(jī)接口與PCI接口之間的轉(zhuǎn)換，以及TCP/IP協(xié)議的實(shí)硯關(guān)鍵詞:RTL8029,PCI總線,TCP/IP
標(biāo)簽： 8029 RTL 51單片機(jī) 控制
上傳時(shí)間： 2013-11-14
上傳用戶：thinode
計(jì)算機(jī)的串行口與控制 單片機(jī)串行口除用作單片機(jī)之間串行通信的通道外，還能和普通計(jì)算機(jī)的RS-232口（串口）進(jìn)行通信。 這是單片機(jī)的一大特色，使得它在通信與控制領(lǐng)域得到廣泛的應(yīng)用。 本部分從一些基礎(chǔ)的RS-232標(biāo)準(zhǔn)談起，并結(jié)合一些串口基礎(chǔ)實(shí)驗(yàn)加深對(duì)知識(shí)的理解。最后，講解如何用Visual Basic語言編寫一個(gè)簡(jiǎn)單的串口通信程序。
上傳時(shí)間： 2014-01-12
上傳用戶：siguazgb
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