集散控制系統(tǒng)外文翻譯-展示頁
2025-05-26 14:33本頁面
【正文】 nd precisely report the situation to higher authorities to plete the mission. As for its exchange with the host puter is through the analog signal or fieldbus digital signal. Because analog signals in the transmission process, there are some more or less distortion or interference, so by popular fieldbus for DCS signals. Process control level Also known as the basic field control unit or controller, is the core part of the DCS system. Relied on the regulation of production processes are achieved. Such as regulating the opening and closing valves, sequence control, continuous control and so on. Speaking of field control level is above the soldiers, then it is in mand of the process control level. It accepts signals ing from field control level, control law in accordance with the requirements of puting technology, and the results sent to the scene as a control signal level control device. Therefore, the process control level to have a smart brain, able to soldiers to analyze the feedback of the military, and then make an order to make the soldiers can win war. his level is not the highest, equivalent to the army39。s lieutenant. It must be the same site feedback to a higher level of Colonel is the following about the process management level. Process management level DCS manmachine interface device, generally with a high resolution, large screen color CRT, the operator keyboard, printer, mass storage and so on. Select the operator station through the operation of various operating and monitoring production, This level is the operator with the DCS platform for exchange of information. DCS39。s a great privilege, you can monitor the operation of various departments, the use of historical data and realtime data to predict the various situations that may occur from the overall interests of business to help business executives make decisions to help panies achieve their program objectives. DCS system background 4039。s last century, industrial automation equipment is used in dispersion control system. All equipment is run independently, not worked control. Operator calculated based on production requirements, will be independent of device characteristics to the appropriate level of regulation, and then began to work. After using a pneumatic, electric analog instrument into the process control system, a certain degree of centralized monitoring, operation and decentralized control. Better adapted to the needs of industrial production. However, with the production scale and plexity of the continuous improvement of the existing control system appears to lag, heavy, cumbersome, because a meter is only one control law to achieve some of the plex control is difficult. In addition, an increasing number of control instruments, usi
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號-1