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,能實現(xiàn)對電動玻璃車窗、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.
上傳時間: 2013-11-13
上傳用戶:z754970244
本文介紹了基于AT89C52 單片機的自動水溫控制系統(tǒng)的設(shè)計及實現(xiàn)過程。該系統(tǒng)具有實時顯示、溫度測量、溫度設(shè)定并能根據(jù)設(shè)定值對環(huán)境溫度進行調(diào)節(jié)實現(xiàn)控溫的目的以及達到上下限溫度報警功能,控制算法是基于數(shù)字PID 算法。關(guān)鍵詞 :PID AT89C52 脈寬調(diào)制 實時 Abstract : This article describes AT89C52 single-chip microcomputer-basedautomatic water temperature control system design and implementation process. Thesystem has real-time display, temperature measurement, temperature settings and theenvironment in accordance with the temperature settings adjusted to achieve thepurpose of temperature control and reach the upper and lower limits of temperaturealarm function, the control algorithm is based on the digital PID algorithm.Keyword: PID AT89C52 PWM real time
上傳時間: 2013-10-10
上傳用戶:歸海惜雪
摘要:本水位監(jiān)測報警器使用5V低壓直流電源(也可以用3節(jié)5號電池代替)就可以對5~15厘米的水位進行監(jiān)測,用LED顯示和數(shù)碼管顯示水位,并可以對不再此范圍內(nèi)的水位發(fā)出報警。主要采用CD4066、74LS86、74LS32、CD4511芯片,再加上數(shù)碼管、蜂鳴器、發(fā)光二極管、電阻這些器件組成一個簡單而靈敏的監(jiān)測報警電路,操作簡單,接通電源即可工作。因為大部分電路采用數(shù)字電路,所以本水位監(jiān)測報警器還具有耗能低、準確性高的特點。關(guān)鍵字:譯碼電路 報警電路 監(jiān)測電路 Abstract: The water level alarm monitoring the use of 5 V low-voltage DC power (can also use three batteries replaced on the 5th) will be able to 5 to 15 centimeters of water level monitoring, with LED display and digital display of water level, and this can no longer Within the scope of a water level alarm. Mainly CD4066, 74LS86, 74LS32, CD4511 chips, coupled with digital control, buzzer, light-emitting diode, the resistance of these devices composed of a simple and sensitive monitoring alarm circuits. Because the majority of circuits using digital circuitry, so the water level monitored alarm system also has low energy consumption, high accuracy of the characteristics. Keyword: Decoding circuit alarm circuit monitoring circuit
標簽: 水位 監(jiān)測報警 系統(tǒng)原理
上傳時間: 2013-11-05
上傳用戶:王慶才
基于多點網(wǎng)絡(luò)的水廠自動監(jiān)控系統(tǒng)設(shè)計Design of MPI Based Automatic Monitoring and Control System in water Works劉 美 俊(湖南工程學院,湘潭411101)摘要針對水廠工作水泵多、現(xiàn)場離控制站距離遠的特點,提出了一種基于MPI多點網(wǎng)絡(luò)的自動監(jiān)控系統(tǒng)的設(shè)計方法,分析了系統(tǒng)的工作原理,介紹了系統(tǒng)中數(shù)據(jù)的采集與處理、主站與從站的通信原理以及系統(tǒng)軟件的設(shè)計。由于這種系統(tǒng)的主、從站PLC之間采用MPI網(wǎng)絡(luò)通信,具有運行可靠、性能價格比高的特點,所以適用于中小規(guī)模水廠的分布式監(jiān)控場合。關(guān)鍵詞多點網(wǎng)絡(luò)主站從站監(jiān)控系統(tǒng)Abstract Ina ccordancew ithth efe atuersof w aterw orks,i. e. ,manyp umpsin o perationa ndth ep umps, farfor mt hec ontrolst ation,th em ethodo fdesigninga na utomati(〕monitoringa ndc ontorlsy stemb asedo nM PIis p resented.Th eo perationalpr incipleo fth esy stemi san alyzed,th ed atac olection,data processing; communication between master station and slave station as wel as design and system software are discussed. Because MPI network communicationis used among master station, slave stations and PLC, the system is reliable and high cost-efective. It is, suitable for smal and mediumsized water works for distrbuted monitoring and control.Keywords MPI Masterst ation Slaves tation Monitoringa ndc ontorlsy stem 自來 水 廠 的自動控制系統(tǒng)一般分為兩大部分,一對組態(tài)硬件要求較高,投資較大。相對而言,MPI網(wǎng)是水源地深水泵的工作控制,一是水廠區(qū)變頻恒壓供絡(luò)速度可達187.5 M bps,通過一級中繼器傳輸距離可水控制,兩部分的實際距離通常都比較遠。某廠水源達Ikm 。根據(jù)水廠的具體情況,確定以MPI方式組地有3臺深井泵給水廠區(qū)的蓄水池供水。水廠區(qū)的成網(wǎng)絡(luò),主站PLC為S7-300系列的CPU3121FM,從任務(wù)是對水池的水進行消毒處理后,通過加壓泵向管站為S7-200系列的CPU222。這樣既滿足了系統(tǒng)要路恒壓供水。選用Siemens公司的S7系列可編程控求,又相對于Profibus網(wǎng)絡(luò)節(jié)省了三分之一的成本,制器(PLC)和上位機組成實時數(shù)據(jù)采集和監(jiān)控系統(tǒng), 這種分布式監(jiān)控系統(tǒng)具有較高的性能價格比。系統(tǒng)對深水泵進行遠程控制,對供水泵采用變頻器進行恒中PLC的物理層采用RS - 485接口,網(wǎng)絡(luò)延伸選用壓控制以保證整個水廠的電機設(shè)備安全、可靠地運帶防雷保護的中繼器,使系統(tǒng)的安全運行得到了保行。證。MPI網(wǎng)絡(luò)的拓撲結(jié)構(gòu)如圖1所示。1 多點網(wǎng)絡(luò)(NWI)監(jiān)控系統(tǒng)的組成Sie me ns 公司S7系列PLC通常有MP」多點網(wǎng)絡(luò)與Profibus現(xiàn)場總線網(wǎng)絡(luò)兩種組網(wǎng)方式。Profibus現(xiàn)場總線的應(yīng)用目前較為普遍,通用性較好,它由Profibus一DP, Profibus一FMS, Profibus一PA組成。Profibus - DP型用于分散外設(shè)間的數(shù)據(jù)傳輸,傳輸速率為9.6kbps一12Mbps,主要用于現(xiàn)場控制器與分散1/0之間的通信,可滿足交直流調(diào)速系統(tǒng)快速響應(yīng)的時間要求,特別適合于加工自動化領(lǐng)域的應(yīng)用;Profibus - FMS主要解決車間級通信問題,完成中等傳輸速度的循環(huán)或非循環(huán)數(shù)據(jù)交換任務(wù),適用于紡織、樓宇自動化、可編程控制器、低壓開關(guān)等;Profibus - PA型采用了OSI模型的物理層和數(shù)據(jù)鏈路層,適用于過程自動化的總線類型。
標簽: 多點 網(wǎng)絡(luò) 系統(tǒng)設(shè)計 自動監(jiān)控
上傳時間: 2013-10-09
上傳用戶:fac1003
vxworks下的GIS系統(tǒng)。 使用說明: 1.下載 "VxEmapgis.out" 或則 "VxEmapgis2.out" 到目標機 2.運行 "main" ,啟動應(yīng)用程序 , 3.按 "ESC" 彈出菜單, 4.選擇 "打開圖層" , 彈出圖打開窗口 , 輸入圖層文件名稱 如 “road.vxw” 或者 “water.vxw” 5.按 大寫字母"O",確定, 或者大寫字母 “C”取消 6.按方向箭頭、pagedown , pageup 實現(xiàn)漫游 , , + , - 實現(xiàn)縮放 7.按 "ESC" 第二次可以取消菜單 8.圖層控制窗口中,列出了已打開的圖層 , 使用方向箭頭移動,選擇相應(yīng)的圖層可以關(guān)閉,也可以在這里打開圖層 9.選擇菜單項 退出系統(tǒng) ,結(jié)束應(yīng)用程序 注:需要支持x86-bios 的PC機 , 我測試所用機器是: 目標機: p2的350M cpu + 256M內(nèi)存 + Tornado2.02 + windml2.0 主機: p4 + window2000 server 雖然我已經(jīng)把windml的庫連接到程序里,可能還需要安裝WINDML2.0,我不大確定. 需要把圖層文件(“road.vxw” , “water.vxw” , "region.vxw" , "placename.vxw"),符號文件(symbollib目錄)等 拷貝到wftpd的根目錄下面 VxEmapgis.out : 沒有中斷提示 VxEmapgis2.out: 有中斷提示
標簽: VxEmapgis out vxworks main
上傳時間: 2015-03-25
上傳用戶:stella2015
Digital Thermostat with High Accuracy -6,00 to 46,00 °C Digital Thermostat We build a digital thermostat for home applications, which controls the room temperature. I used the AT90S2313 microprocessor of ATMEL. The digital thermostat opens the main heating valve of the apartment and the hot water flows in the radiators. Digital Thermostat Board
標簽: Thermostat Digital Accuracy digital
上傳時間: 2014-01-18
上傳用戶:D&L37
The Capacity of a MIMO channel with nt transmit antenna and nr recieve antenna is analyzed. The power in parallel channel (after decomposition) is distributed as water-filling algorithm
標簽: antenna The Capacity analyzed
上傳時間: 2016-02-01
上傳用戶:225588
Capacity of a MIMO channel with nt transmit antenna and nr recieve antenna is analyzed. The power in parallel channel (after decomposition) is distributed as water-filling algorithm
標簽: antenna Capacity analyzed transmit
上傳時間: 2016-07-13
上傳用戶:zhichenglu
IN highly scattered enviroment,the Capacity of a MIMO channel with nt transmit antenna and nr recieve antenna is analyzed. The power in parallel channel (after decomposition) is distributed as water-filling algorithm
標簽: enviroment scattered highly IN
上傳時間: 2014-01-25
上傳用戶:SimonQQ
本人的O2一開始也是裝不上,最后將問題放在了驅(qū)動本身,決定從網(wǎng)上下另外的驅(qū)動嘗試,結(jié)果選擇了PDAFANS里面water兄漢化的一個驅(qū)動,安裝后問題解決 下面提供上述的驅(qū)動
標簽:
上傳時間: 2014-01-05
上傳用戶:youke111
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