介紹一種應(yīng)用于長城賽弗SUV汽車后門車窗多功能控制器,能實(shí)現(xiàn)對(duì)電動(dòng)玻璃車窗、車窗雨刮器、噴水器以及電加熱除霜器等控制。介紹了基于NXP P89LPC922單片機(jī)多功能汽車后車窗控制器的控制功能、硬件電路原理和軟件設(shè)計(jì)方法。 Abstract: This Paper presents a multipurpose automotive rear windows controller for CHANGCHENG SAFE SUV.The controller can control rear power-operated window,rear wiping,washing water pump and rear defroster of the windows. In this Paper, it is introduced in detail that the functions and the design of the circuit and program of the controller based on NXP P89LPC922 MCU.
上傳時(shí)間: 2013-11-13
上傳用戶:z754970244
利用Atmel公司的ATmega168微處理器,采用A/D轉(zhuǎn)換方式來實(shí)現(xiàn)按摩椅控制器的鍵盤接口,通過在硬件電路中巧妙地選擇電阻,在軟件設(shè)計(jì)中采用數(shù)字濾波、二分法和區(qū)間鑒定等方法,靈敏可靠地實(shí)現(xiàn)了按摩椅中30個(gè)按鍵的處理。給出了硬件電路設(shè)計(jì)和軟件設(shè)計(jì)思想以及部分匯編代碼。 Abstract: This Paper chooses A/D conversion method to realize the keyboard interface of the controller by using ATmega168 microchip from Atmel Company.It accomplishes 30-key dealing sensitively and reliably in massage chair through skillfully selecting resistors in hardware circuit and using digital filter,dichotomy and area-judging method in software design.The hardware design circuit, software design idea and partly assembles code are presented mainly.
上傳時(shí)間: 2014-01-10
上傳用戶:咔樂塢
介紹以P87LPC764型單片機(jī)為核心的延時(shí)型漏電繼電器設(shè)計(jì)方案。該方案可供用戶選擇實(shí)現(xiàn)額定動(dòng)作電流和5倍額定動(dòng)作電流下不同的延時(shí)動(dòng)作時(shí)間,并有重合閘設(shè)定選擇功能。解決了以往傳統(tǒng)分立元件帶來的延時(shí)時(shí)間離散性大且不易實(shí)現(xiàn)的弊端。 Abstract: In this Paper, the delay leakage relay based on P87LPC764 is introduced in detail. This system provides different relay times at rating current and 5× rating current for users and also offers superposition brake set selection function. So that it resolves many traditional problems.
上傳時(shí)間: 2013-11-08
上傳用戶:zhaiye
以S3C825A為例介紹三星公司SAM8系列單片機(jī)的內(nèi)部結(jié)構(gòu)及其軟件開發(fā)環(huán)境,詳細(xì)描述采用混合編程法來對(duì)SAM8系列單片機(jī)進(jìn)行軟件設(shè)計(jì)的一般方法,最后給出用混合編程法對(duì)S3C825A進(jìn)行軟件設(shè)計(jì)的具體應(yīng)用實(shí)例。 Abstract: With S3C825A,this Paper firstly introduces the SAM8 series single-chip microcontrollers and their software development environment, then introduces mixed programming technology for SAM8 series single-chip microcontrollers. In the end, the application program is also given.
標(biāo)簽: S3C825A SAM8 單片機(jī) 軟件設(shè)計(jì)
上傳時(shí)間: 2013-12-09
上傳用戶:ZZJ886
基于幅移鍵控技術(shù)ASK(Amplitude-Shift Keying),以C8051F340單片機(jī)作為監(jiān)測(cè)終端控制器,C8051F330D單片機(jī)作為探測(cè)節(jié)點(diǎn)控制器,采用半雙工的通信方式,通過監(jiān)控終端和探測(cè)節(jié)點(diǎn)的無線收發(fā)電路,實(shí)現(xiàn)數(shù)據(jù)的雙向無線傳輸。收發(fā)電路采用直徑為0.8 mm的漆包線自行繞制成圓形空心線圈天線,天線直徑為(3.4±0.3)cm。試驗(yàn)表明,探測(cè)節(jié)點(diǎn)與監(jiān)測(cè)終端的通信距離為24 cm,通過橋接方式,節(jié)點(diǎn)收發(fā)功率為102 mW時(shí),節(jié)點(diǎn)間的通信距離可達(dá)20 cm。與傳統(tǒng)無線收發(fā)模塊相比,該無線收發(fā)電路在受體積、功耗、成本限制的場(chǎng)合有廣闊的應(yīng)用前景。 Abstract: Based on ASK technology and with the C8051F340 and C8051F330D MCU as the controller, using half-duplex communication mode, this Paper achieves bi-directional data transfer. Transceiver circuit constituted by enameled wire which diameter is 0.8mm and wound into a diameter (3.4±0.3) cm circular hollow coil antenna. Tests show that the communication distance between detection and monitoring of the terminal is 24cm,the distance is up to 20cm between two nodes when using the manner of bridging and the node transceiver power is 102mW. Compared with the conventional wireless transceiver modules, the circuit has wide application prospect in small size, low cost and low power consumption and other characteristics.
標(biāo)簽: C8051F 單片機(jī) 無線收發(fā) 電路設(shè)計(jì)
上傳時(shí)間: 2013-10-19
上傳用戶:xz85592677
為解決傳統(tǒng)可視倒車?yán)走_(dá)視頻字符疊加器結(jié)構(gòu)復(fù)雜,可靠性差,成本高昂等問題,在可視倒車?yán)走_(dá)設(shè)計(jì)中采用視頻字符發(fā)生器芯片MAX7456。該芯片集成了所有用于產(chǎn)生用戶定義OSD,并將其插入視頻信號(hào)中所需的全部功能,僅需少量的外圍阻容元件即可正常工作。給出了以MAX7456為核心的可視倒車?yán)走_(dá)的軟、硬件實(shí)現(xiàn)方案及設(shè)計(jì)實(shí)例。該方案具有電路結(jié)構(gòu)簡單、價(jià)格低廉、符合人體視覺習(xí)慣的特點(diǎn)。經(jīng)實(shí)際裝車測(cè)試,按該方案設(shè)計(jì)的可視倒車?yán)走_(dá)視場(chǎng)清晰、提示字符醒目、工作可靠,可有效降低駕駛員倒車時(shí)的工作強(qiáng)度、減少倒車事故的發(fā)生。 Abstract: A new video and text generation chip,MAX7456,was used in the design of video parking sensor in order to simplify system structure,improve reliability and reduce cost. This chip included all the necessary functions to generate user-defined OSDs and to add them into the video signals. It could be put into work with addition of just a small number of resistances and capacitors. This Paper provided software and hardware implementation solutions and design example based on the chip. The system had the characteristics of simplicity in circuit structure,lower cost,and comfort for the nature of human vision. Loading road test demonstrates high video and text display quality and reliable performance,which makes the driver easy to see backward and reduces chance of accidents.
標(biāo)簽: 7456 MAX 可視倒車 中的應(yīng)用
上傳時(shí)間: 2013-12-10
上傳用戶:qiaoyue
介紹了一種基于MSP430系列單片機(jī)和ADXL203加速度傳感器的數(shù)字式傾角儀,它不僅可以實(shí)現(xiàn)水平度檢測(cè),而且可以測(cè)量00~3600范圍內(nèi)的任意傾角,分辨率可達(dá)O.1。。此外,由于該傾角儀輸出為數(shù)字結(jié)果,因此它也可以與其他的數(shù)字設(shè)備結(jié)合起來,組合成一個(gè)功能更加強(qiáng)大的儀器。該數(shù)字傾角儀可廣泛應(yīng)用于建筑、機(jī)械、道路、橋梁、石油、煤礦和地質(zhì)勘探等各種需要測(cè)量重力參考系下傾角的場(chǎng)合。關(guān)鍵詞:MSP430F133單片機(jī);力敏傳感器;ADXL203加速度計(jì);角度測(cè)量 Abstract:This Paper presents a new style digital inclinometer which is developed on the basis of the MSP430F133 MCU and the ADXL203 dual axis aeeelerometer.This inclinometer not only can test levelness,but also can measure any angle between 0。and 360。with an accuracy of 0.1 O.In addition,its output is a digital result,which makes it possible to integrate itself with other digital devices to form a more functional unit.This inclinometer can be widely used in any construction site,oil field,coal-mine or geologic survey and SO on where it will provide the working people with convenience to measure any angles.Key words:MSP430F133 MCU;force sensor;ADXL203 accelerometer;angle measurement
上傳時(shí)間: 2013-11-14
上傳用戶:lizhizheng88
介紹了用單片機(jī)C 語言實(shí)現(xiàn)無功補(bǔ)償中電容組循環(huán)投切的基本原理和算法,并舉例說明。關(guān)鍵詞:循環(huán)投切;C51;無功補(bǔ)償中圖分類號(hào): TM76 文獻(xiàn)標(biāo)識(shí)碼: BAbstract: This Paper introduces the aplication of C51 in the controlling of capacitorsuits cycle powered to be on and off in reactive compensation.it illustrate thefondamental principle and algorithm with example.Key words: cycle powered to be on and off; C51; reactive compensation 為提高功率因數(shù),往往采用補(bǔ)償電容的方法來實(shí)現(xiàn)。而電容器的容量是由實(shí)時(shí)功率因數(shù)與標(biāo)準(zhǔn)值進(jìn)行比較來決定的,實(shí)時(shí)功率因數(shù)小于標(biāo)準(zhǔn)值時(shí),需投入電容組,實(shí)時(shí)功率因數(shù)大于標(biāo)準(zhǔn)值時(shí),則需切除電容組。投切方式的不合理,會(huì)對(duì)電容器造成損壞,現(xiàn)有的控制器多采用“順序投切”方式,在這種投切方式下排序在前的電容器組,先投后切;而后面的卻后投先切。這不僅使處于前面的電容組經(jīng)常處于運(yùn)行狀態(tài),積累熱量不易散失,影響其使用壽命,而且使后面的投切開關(guān)經(jīng)常動(dòng)作,同樣減少壽命。合理的投切方式應(yīng)為“循環(huán)投切”。這種投切方式使先投入的運(yùn)行的電容組先退出,后投的后切除,從而使各組電容及投切開關(guān)使用機(jī)率均等,降低了電容組的平均運(yùn)行溫度,減少了投切開關(guān)的動(dòng)作次數(shù),延長了其使用壽命。
標(biāo)簽: C51 無功補(bǔ)償 循環(huán) 電容
上傳時(shí)間: 2014-12-27
上傳用戶:hopy
PROTEUS VSM在單片機(jī)系統(tǒng)仿真中的應(yīng)用::介紹了單片機(jī)系統(tǒng)仿真工具PROTEUS VSM 及其在單片機(jī)系統(tǒng)仿真中的應(yīng)用,給出了具體的應(yīng)用實(shí)例,詳細(xì)地介紹了PROTEUS VSM 與Keil uVision3的接口方法。關(guān)鍵詞:單片機(jī);Keil uVision3;仿真;外圍器件;PROTEUS VSM; Abstract:This Paper introduces the simulation tool for M CU system —PROTEUS VSM , and presents the application ofPROTEUS VSM in MCU system simulation through an applicable example.The way of interfacing PROTEUS VSM to Keil uVision3is also presented in details.Keywords:MCU ;Keil uVision3;simulation;peripheral devices;PROTEUS VSM ;
標(biāo)簽: PROTEUS VSM 單片機(jī) 中的應(yīng)用
上傳時(shí)間: 2013-11-16
上傳用戶:chenxichenyue
本文介紹了一種基于單片機(jī)的健身車轉(zhuǎn)速測(cè)量系統(tǒng)。該系統(tǒng)具有電路簡單、使用方便等特點(diǎn)。文中詳細(xì)介紹了該系統(tǒng)的工作原理,并且給出了它的硬件原理圖和軟件設(shè)計(jì)程序框圖。關(guān)鍵詞:轉(zhuǎn)速 單片機(jī) 測(cè)量ABSTRACT :This Paper introduces a measuring system of the rotational velocity of exercise bike based on single - chip microcomputer . It has such advantages : simple circuit ,convenient use and so on. The work principle is presented in detail in this Paper and the block diagram of hardware and program flow chart are giv2 en as well .KEYWORDS :Rotational velocity Single - chip microcomputer Measuring
標(biāo)簽: 單片機(jī) 中的應(yīng)用 轉(zhuǎn)速測(cè)量
上傳時(shí)間: 2013-11-02
上傳用戶:源弋弋
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