【正文】
similarity, concrete of design of empirical of dissimilarity but dissimilarity. But the main advantage of this kind of design lie in designing a personnel to understand an own controller very much, can freely control the big baby size of controller, change it of function. This means that this item contains more special, but in the meantime the control of system also from it of design control. 2. Electricity system People can find out to speak of in three preceding contexts from an automation of basic parts, the in addition is a logic circuit which controls system. The technique of only mature forerunner cans make a particular logic circuit and performance the parts that exactitude need when operate to get stripe. For a simple sport, the system auto procedure can plete, but for indirect or more plicated sport, the procedure of system will produce plicated circuit and false signal. This is need another method can save time, produce clear circuit, can keep accidental signal from hand over fold to stop with circuit. The line roadbed method of different standard of this kind of way call follow the sequence and advance gradually type or rule system, it to the current of air and the electricity system very valid, and is also a foundation of this item. It include according to launch the system of foundation that the machine appearance each dissimilarity variety establish. The square one is each circuit that the step designs those kinds of standards. The second step is a conjunction to receive to e from sensor and the switch sends the air or the fax to the supply line of each step in the meantime with previous sport signal. If show in the diagram, 1 with 2 standard circuits is a current of air of with the electricity system serve. We can know very much of see each one step suddenly with the contact of the of next step. 3. The applied principle of controller inner part The abovementioned method can make each sport of launch the machine nicely defined with the step. This be also a new appearance which says that the every sport varieties of launch the machines are systems, but the change of of two different appearances be called a step. The standard circuit which speaks of in times before can the in aid of design personnel define different appearance different from what the variety of different step bring environment of system. The end stage in design will have a sequence and explicit input and output which never changes to carry in the system. We carry a sequence is from the importation the importation be through conversion carried exportation by the exportation. All processes of these steps carry on in the tiny controller inner part, and with same of the way is circulate. The sequence of parts is program by 5 bytes in the controller。這種控制器雖然不能和商業(yè)的 PLC 相比,但是它原本就是為特定的的目的而設計的,所以很難說哪一個好哪一個壞。 單獨使用內(nèi)部記憶 ,我們可以控制一個有 48個步驟的氣流系統(tǒng),但是如果使用一個比較簡單的系統(tǒng),就會達到 60個步驟 .控制器的變成不使用 PLC 語言 ,而是用一個比較簡單的和直覺的結(jié)構(gòu)。 7. 結(jié)論 這種控制器是專門為這一項目所設計的。使用這種可編程的控制器 ,使用者必須知道運行方法的觀念并且規(guī)劃每個步驟的結(jié)構(gòu)。 另外的一些輔助設施也包括在這個系統(tǒng)中 ,比如自動機械 / 手動調(diào)控器,他們可以使系統(tǒng)不斷的循環(huán)工作;兩個開始控制鍵 ,他們能讓操作員手動控制系統(tǒng)的開始和停止,這樣就減少了發(fā)生意外事件的危險。那一個線路能夠隨時停止序列而且將主動器的狀態(tài)換成一個特定的位置。 利用他們我們可以用必需的邏輯語言設計整個的控制線路。我們把每個步驟的所有運行統(tǒng)稱為 . (A+) 表示主動器 A 向前推動,而 (A) 表示返回到開始的位置。第四步,主動器 D 快速往返來回運動一次。第二步, 當 A 完成了它的工作后,主動器 C 連同 B 一起開始盡可能多的產(chǎn)生電流圈,并受 B 的運行速度的限制,而 B 速度由一個流動的控制活瓣管理。 5. 電氣系統(tǒng)例子 這種系統(tǒng)不只是適應于特定的機器。 但是,如果想聯(lián)結(jié)電腦接口和控 制器,至少應該有一個儀器來保證數(shù)據(jù)的可靠性。 4. 3 接口 程序運行序列可以用控制器的接口來編程。更重要的是,應該有預防運行故障和問題的解決方法。 4. 1 交互作用 在實際運行操作中,控制器需要有一些輔助設備幫助它和使用者進行互動,可以提供可靠的操作監(jiān)控,同時對氣流系統(tǒng)進行邏輯控制。這個操作有兩個位元組位于電子輸入處。它有足夠的插孔,線路連續(xù)通訊 EEPROM 記憶解救系統(tǒng)的所有結(jié)構(gòu)和步驟的序列。 它也有局限性,例如這種控制器有時會不執(zhí)行指令,在同一程序指令下,會出現(xiàn)某一個運行的反復等等 ,但是這一個問題可以通過外部的邏輯運行解決。在編程之后,部件序列被內(nèi)部微控制器的記憶所儲藏,因此,他們是可讀的而且可以運行。我們把一個序列從輸入端輸入,經(jīng)過轉(zhuǎn)換后,由輸出端輸出。 上述方法可以使發(fā)動機的每一個運動都被很好地用步驟來定義。它包括根據(jù)發(fā)動機狀態(tài)各個不同變化所設基礎 上的系統(tǒng)。只有成熟先進的技術(shù)能做出特定的邏輯線路和執(zhí)行正確操作所需要的部件升級。所有的這些特性根據(jù)具體需要的不同而不同,具體的設計者的經(jīng)驗的不同而不同。對于自動化的工程, PLC 的使用是比較昂貴的,尤其是對那些小型的 系統(tǒng)。因此,可以節(jié)省時間,減少失誤的危險,同時在使用相同材料的情況下,它可以更加精密。 使用電氣技術(shù)的自動化系統(tǒng)主要由三個組成部分:發(fā)動機或馬達,感應器或按鈕,狀如花瓣的控制零部件。 畢業(yè)設計 (論文 )外文資料翻譯 系 部: 機械系 專 業(yè): 機械工程及自動化 姓 名: 學 號: