AB 1756-IB32
廈門莫格電氣自動(dòng)化有限公司
:雷琳
:/,
羅克韋爾自動(dòng)化ICS Rockwell trusted系統(tǒng)(Allen-Bradley)可編程控制器( PLC)、交換機(jī)!、
施耐德(schneider Modicon Quantum)交換機(jī)、過程控制可編程控制器( PLC),以太網(wǎng)自動(dòng)化控制器,處理器等!
honeywell霍尼韋爾DCS卡件 FSC DO TPS系列 HIMA黑馬DCS控制系統(tǒng) YOKOGAWA橫河 CS3000 DCS系列
伍德沃德WOODWARD 505Turbine Control 數(shù)位式調(diào)速板,控制器,直流調(diào)速器!
艾默生EPRO卡件/A6312/A6110/A6120/A6210/A6220系列前置器/探頭
GE電氣90/30系列 90/70系列 GE燃機(jī)備件IS200 DS200 IS215 DS215 DEH控制卡汽輪機(jī)備件
本特利bently3500系列機(jī)械保護(hù)系統(tǒng)
艾默生DeltaV 西屋OVATION系統(tǒng)備品備件 TRICONEX/TRICON/??怂共_DCS
Robots、OTC Robots、Panasonic Robots、MOTOMAN Robots等
ABB:工業(yè)機(jī)器人備件DSQC系列(中二中三,中四, S4C , S4C , IRC5)、Bailey INFI 90等。
Westinghouse(西屋): OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件
Invensys Foxboro(??怂共_):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場(chǎng)輸入/輸出模塊)順序控制、
梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)據(jù)通信及處理等。
Invensys Triconex: 冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余(TMR)結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。
Siemens(西門子):Siemens MOORE, Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等
Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。
Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列
0 引言AB 1756-IB32
隨著社會(huì)的發(fā)展,道路上到處都是飛速的汽車。如何保證行人安全,一直都是人們關(guān)注的重心。要減少交通事故,就得從汽車的各種安全設(shè)計(jì)考慮,這不僅僅是汽車本身的質(zhì)量問題,還應(yīng)關(guān)注汽車在行駛過程中對(duì)路人的引導(dǎo)指示方面。其中汽車的各種燈就是安全警示的一個(gè)方面,汽車的轉(zhuǎn)彎燈、頭燈、尾燈和警示燈等能夠幫助路人識(shí)別汽車的動(dòng)向,尤其是當(dāng)遇到緊急事件時(shí),打開緊急開關(guān)就可以警示路人該車現(xiàn)在不安全了,需要小心避車。轉(zhuǎn)彎燈能提示路人該車要進(jìn)行左轉(zhuǎn)或是右轉(zhuǎn)了,小心碰撞。傳統(tǒng)的汽車閃光器結(jié)構(gòu)簡(jiǎn)單體積小、閃光頻率穩(wěn)定、監(jiān)控作用明顯,故被廣泛使用。但這樣的繼電器由于自身?xiàng)l件的限制,可靠性低,定時(shí)時(shí)間不夠精確,使用壽命較短,且繼電器受溫度影響較大,對(duì)于溫度變化較大的環(huán)境往往不能滿足要求。本文中汽車轉(zhuǎn)向燈設(shè)計(jì)是用單片機(jī)來實(shí)現(xiàn)的,單片機(jī)控制系統(tǒng)可避免傳統(tǒng)的缺點(diǎn),因?yàn)閱纹瑱C(jī)功能強(qiáng)、使用靈活、可靠性高、成本低、體積小、面向控制、具有智能化功能等很多優(yōu)點(diǎn)。
1 Proteus仿真軟件介紹
本文中用單片機(jī)控制的汽車轉(zhuǎn)向燈控制器是在Proteus的設(shè)計(jì)仿真環(huán)境中實(shí)現(xiàn)的。Proteus是由英國Labeenter Electronics公司開發(fā)的EDA工具軟件。它主要由Ares和Isis兩個(gè)程序組成。前者主要用于PCB自動(dòng)或人工布線及其電路仿真,后者主要采用原理布圖的方法繪制電路并進(jìn)行相應(yīng)的仿真。除了上述基本應(yīng)用之外,Proteus革命性的功能在于其電路仿真是互動(dòng)的,針對(duì)微處理器的應(yīng)用,可以直接在基于原理圖的虛擬原型上編程,并實(shí)現(xiàn)軟件代碼級(jí)的調(diào)試,還可以直接實(shí)時(shí)動(dòng)態(tài)地模擬按鈕、鍵盤的輸入,LED、液晶顯示的輸出,同時(shí)配合虛擬工具如示波器、邏輯分析儀等進(jìn)行相應(yīng)的測(cè)量和觀測(cè)?;赑roteus的單片機(jī)控制系統(tǒng)設(shè)計(jì)*地簡(jiǎn)化了設(shè)計(jì)工作?;赩SM的理論,Proteus可以仿真很多常用的微處理器。AB
具體來講,它支持PIC、8051、AVR、HC11、ARM7/LPC2000等系列多種型號(hào)的微處理器、微控制器,仿真時(shí)只需在設(shè)定元件屬性時(shí)下載程序的路徑即可進(jìn)行實(shí)時(shí)動(dòng)態(tài)仿真。
2 汽車轉(zhuǎn)向燈控制器的單片機(jī)硬件系統(tǒng)設(shè)計(jì)
2.1 本汽車轉(zhuǎn)向燈控制器所實(shí)現(xiàn)的功能
汽車轉(zhuǎn)向燈控制器應(yīng)具有自動(dòng)診斷故障、轉(zhuǎn)彎、停靠和警示燈多種功能。本文中汽車轉(zhuǎn)向燈所具有的具體功能有下面5個(gè):
(1)正常駕駛時(shí),接通左轉(zhuǎn)彎開關(guān),左轉(zhuǎn)彎燈、左頭燈、左尾燈同時(shí)閃爍;反之右轉(zhuǎn)彎燈、右頭燈、右尾燈同時(shí)閃爍,閃爍頻率為2Hz。
(2)剎車時(shí),接通剎車開關(guān),左尾燈、右尾燈同時(shí)亮。
(3)停靠站時(shí),接通??块_關(guān),左頭燈、右頭燈、左尾燈和右尾燈同時(shí)閃爍,閃爍頻率為2Hz。
(4)出現(xiàn)緊急情況時(shí),接通緊急開關(guān),左轉(zhuǎn)彎燈、右轉(zhuǎn)彎燈、左頭燈、右頭燈、左尾燈和右尾燈同時(shí)閃爍,閃爍頻率為10Hz。
(5)若出現(xiàn)控制燈故障,能自動(dòng)反饋到單片機(jī)控制中心,實(shí)現(xiàn)故障自動(dòng)診斷功能。
2.2 汽車轉(zhuǎn)向燈控制器硬件設(shè)計(jì)
2.2.1 汽車轉(zhuǎn)向燈硬件框圖
根據(jù)自動(dòng)控制原理,汽車轉(zhuǎn)向燈控制器應(yīng)該由輸入、輸出和反饋檢測(cè)電路組成,由AT89C51單片機(jī)組成控制器來處理和控制這些信號(hào)。汽車轉(zhuǎn)向燈控制器硬件框圖如圖1所示。
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Pneumatic Sequencing Festo FC600 PLC and Motor control cabinet
SQUARE D 9012 GCW1 Series B Industrial Pressure Switch 20-1000 psig 1.4-59 bar
SQUARE D 9012 ADW-3 Industrial Pressure Switch931-6890 KPa Diff'l 242-930 KPa
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