為了提高傳統(tǒng)溫度控制系統(tǒng)的性能,將PID控制理論與嵌入式系統(tǒng)相結(jié)合,采用瑞薩電子公司的H8S/2166作為核心處理器,AD公司的AD7705以及熱敏電阻溫度傳感器作為溫度檢測(cè)單元,利用4×6小鍵盤、LCD顯示器和S1D13305液晶控制器達(dá)到良好的人機(jī)交互,設(shè)計(jì)出了一個(gè)應(yīng)用于化工領(lǐng)域的嵌入式實(shí)時(shí)溫度控制系統(tǒng)。相比于傳統(tǒng)溫度控制系統(tǒng),該系統(tǒng)提供了更強(qiáng)的計(jì)算能力和可擴(kuò)展能力,采用增量PID控制算法實(shí)現(xiàn)復(fù)雜控制。通過實(shí)驗(yàn),該系統(tǒng)能達(dá)到0.1 ℃的溫度控制精度以及小于120 s的溫度穩(wěn)定時(shí)間。 Abstract: In order to improve the performance of conventional temperature control system, combining PID control theory with embedded systems, using the Renesas Electronics Corp. H8S/2166 micro-controller as a core processors, AD7705 and thermistor temperature sensor as a temperature detection unit and 4×6 small keyboard, LCD and S1D13305 LCD controller as a good human-computer interaction, this paper designed an embedded real-time temperature control system which is applied in chemical industry. Compared with conventional temperature control system, this system provides more computing power and extensibility, and adopts PID control algorithm for complex control. Through the experiment, the system can reach temperature control accuracy of 0.1 ℃ and temperature stabilization time of less than 120 seconds.
標(biāo)簽: 瑞薩電子 微控制器 溫度控制 系統(tǒng)設(shè)計(jì)
上傳時(shí)間: 2014-12-26
上傳用戶:003030
介紹基于VHDL的微型打印機(jī)控制器的設(shè)計(jì)。論述了微型打印機(jī)的基本原理,以及實(shí)現(xiàn)控制器的VHDL語(yǔ)言設(shè)計(jì)。打印機(jī)的數(shù)據(jù)來自系統(tǒng)中的存儲(chǔ)模塊,根據(jù)需要控制打印。該微型打印機(jī)控制器可取代傳統(tǒng)的微型打印機(jī),且抗干擾性好,可靠性高,具有較強(qiáng)的移植性,稍加改動(dòng)就可應(yīng)用于不同場(chǎng)合。 Abstract: This paper introduced the design method of micro printer controller based on VHDL.The basic principles of microprinter is explained,as well as the realization of the controller by VHDL language.The printer data is from the system memory modules,can control printer.The design of microprinter controller has antigood and high reliability,it can replace the traditional printer.The controller has very good portability,and need little modify that can use in different situation.
標(biāo)簽: VHDL 微型打印機(jī) 制器設(shè)計(jì)
上傳時(shí)間: 2013-11-03
上傳用戶:dudu1210004
產(chǎn)品描述: MSP430是TI公司的一個(gè)超低功耗微控制器系列,片內(nèi)組合了不同功能模塊,可適應(yīng)不同應(yīng)用層次的需求,在硬件架構(gòu)上,提供架構(gòu)上,提供了五種低功耗模式,可最大限度的延長(zhǎng)手持設(shè)備的電池壽命.MSP430系列的CPU采用16位精簡(jiǎn)指令集,集成了16個(gè)通用寄存器和常數(shù)發(fā)生器,極大的提高了代碼的執(zhí)行效率,它的數(shù)字可控振蕩器(DCO)可在LUS內(nèi)由低功耗模式切換到活動(dòng)模式.
上傳時(shí)間: 2013-11-12
上傳用戶:fklinran
前言 通用單片機(jī),其實(shí)泛指微控器,對(duì)于芯片提供廠商,又指應(yīng)用于通用領(lǐng)域的單片機(jī)產(chǎn)品;廣泛應(yīng)用于家電產(chǎn)品、工業(yè)控制產(chǎn)品、儀器儀表設(shè)備、智能控制器等當(dāng)中,滲透在人們的日常生活、生產(chǎn)活動(dòng)當(dāng)中。按照通用單片機(jī)的數(shù)據(jù)總線位數(shù)劃分,也分為4位、8位、16位以及32位通用單片機(jī)/微控制器,其中又以8位通用單片機(jī)在通用領(lǐng)域應(yīng)用的市場(chǎng)當(dāng)中,占據(jù)最大的份額;而且隨著需求的增漲,全球8位通用單片機(jī)的出貨量還在攀升當(dāng)中。在8位通用單片機(jī)的供貨商中,有很多世界知名的芯片廠商,都在給廣大用戶提供各種規(guī)格的通用單片機(jī)產(chǎn)品,應(yīng)用于各種領(lǐng)域;凌陽(yáng)科技(Sunplus Technology Co.,Ltd.)作為全球知名的芯片設(shè)計(jì)公司,在通用單片機(jī)產(chǎn)品上,提供了SPMC系列通用單片機(jī)。
上傳時(shí)間: 2013-11-02
上傳用戶:gtzj
摘要 本設(shè)計(jì)以AT89S52單片機(jī)為中心控制器,由51最小系統(tǒng)及復(fù)位電路、電源和USB下載模塊、發(fā)光二極管模塊、蜂鳴器電路、數(shù)碼管顯示模塊、矩陣鍵盤模塊、點(diǎn)陣顯示電路、繼電器電路、溫度傳感器DS18B20模塊、串口通信接口電路、電機(jī)驅(qū)動(dòng)電路、時(shí)鐘芯片DS1302模塊、存儲(chǔ)器AT24C02、AD轉(zhuǎn)化模塊、DA轉(zhuǎn)化模塊、旋轉(zhuǎn)撥碼開關(guān)、1602和12864液晶接口、電路外部RAM62256模塊組成。
上傳時(shí)間: 2013-10-13
上傳用戶:爺?shù)臍赓|(zhì)
概述: 單片機(jī)以其高可靠性、高性價(jià)比、低電壓、低功耗等一系列優(yōu)點(diǎn),近幾年得到迅猛發(fā)展和大范圍推廣,廣泛應(yīng)用于工業(yè)控制系統(tǒng),數(shù)據(jù)采集系統(tǒng)、智能化儀器儀表,及通訊設(shè)備、日常消費(fèi)類產(chǎn)品、玩具等。并且已經(jīng)深入到工業(yè)生產(chǎn)的各個(gè)環(huán)節(jié)以及人民生活的各層次中,如車間流水線控制、自動(dòng)化系統(tǒng)等、智能型家用電器(冰箱、空調(diào)、彩電)等,無(wú)不含有CPU控制器,即單片機(jī)。 為適應(yīng)目前人才緊缺的狀態(tài)、著眼于培養(yǎng)單片機(jī)人才、單片機(jī)工程師。我們推出了針對(duì)培養(yǎng)學(xué)習(xí)者應(yīng)用能力的AT89-ISP在線下載實(shí)驗(yàn)儀。以配合各大、中專院校、高職、技校等紛紛增加及擴(kuò)大的單片機(jī)教學(xué)的需要。
上傳時(shí)間: 2013-11-18
上傳用戶:小寶愛考拉
在汽車發(fā)動(dòng)機(jī)起動(dòng)時(shí),若發(fā)動(dòng)機(jī)起動(dòng)后起動(dòng)機(jī)不能及時(shí)斷電,將會(huì)燒毀起動(dòng)機(jī)或損壞飛輪齒環(huán);若變速器不在空檔位置起動(dòng),則起動(dòng)機(jī)的瞬間動(dòng)力將使汽車位移,還可能引起交通事故和人身安全。為此介紹一種利用NXP P89LPC901單片機(jī)控制的汽車起動(dòng)保護(hù)控制器,通過檢測(cè)汽車起動(dòng)開關(guān)、變速箱檔位、發(fā)動(dòng)機(jī)轉(zhuǎn)速,實(shí)現(xiàn)對(duì)汽車發(fā)動(dòng)機(jī)起動(dòng)過程檢測(cè)和保護(hù)。起動(dòng)保護(hù)控制器在發(fā)動(dòng)機(jī)起動(dòng)過程中通過采用逐個(gè)關(guān)閉打開負(fù)載系統(tǒng),解決汽車發(fā)動(dòng)機(jī)過程中因起動(dòng)電流大而對(duì)汽車電源的沖擊影響,延長(zhǎng)了電瓶壽命。 Abstract: When the automotive engine is started, the engine start motor and flywheel gear may be damaged, even traffic accidents and personal safeties may be caused by wrong operation or other factors.In order to ensure the automotive engine can be started normally and safely,it is necessary that the protecting measures and methods are considered in the automotive electrical control system.This paper introduces a kind of the automotive engine starting protect controller based on NXP P89LPC901 MCU.The controller can protect the engine starting process by detecting the starter key switch,transmission stall and engine speed.Through the use of close and open load system,the controller can solve the impact on automotive power because of the high-current load in the process of the automobile engine starting, and extend battery life.
上傳時(shí)間: 2013-10-15
上傳用戶:mikesering
針對(duì)目前燃?xì)庠钍袌?chǎng)的狀況,提出一種基于PIC16C711單片機(jī)的燃?xì)庠蠲}沖點(diǎn)火控制器設(shè)計(jì),具體包括有系統(tǒng)的組成和功能介紹、硬件電路設(shè)計(jì)及軟件功能實(shí)現(xiàn)。 Abstract: Aiming at today’s gas cooker market, a pulse ignition controler design based on PIC16C711 is presented.The specific descriptions of system components and functions,hardware circuit design and software function are given.
上傳時(shí)間: 2013-10-31
上傳用戶:zhqzal1014
利用MAXQ2000微控制器實(shí)現(xiàn)快速傅里葉變換
標(biāo)簽: MAXQ 2000 微控制器 快速傅里葉變換
上傳時(shí)間: 2013-11-06
上傳用戶:llandlu
介紹一種應(yīng)用于長(zhǎng)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
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