field control unit 中文意思是什麼

field control unit 解釋
現場控制單元
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • control : n 1 支配，管理，管制，統制，控制；監督。2 抑制（力）；壓制，節制，拘束；【農業】防治。3 檢查；核...
  • unit : n 1 個體，一個，一人。2 （計值、組織、機構）單位；單元；小組，分部；【軍事】部隊；分隊。3 【機械...
  1. Fieldbus is a kind of communication network which is a whole digitial communication multi _ embranchment data bus between intelligential field device and auto _ system. control system based on pcs ( fieldbus control system ) is a new kind of system which connect field control unit, field monitor unit, operation unit, communication interface uint with databus. lt integrates computer technology, communication technology and process cnotrol technology to adjust to demand of high standard productive control and enterprise management. lt developments and follows the advantage of traditional instrument control system and computer central control system and make up for their disadvantage so that it is applied in different industrial cnotrol area

    現場總線是連接智能現場設備和自動化系統的數字式、雙向傳輸、多分支的通信網路。它是一種能支持雙向、多節點、總線式的全數字通信網路。基於現場總線技術的控制系統是一種新型的控制系統，它採用總線方式將現場控制單元、現場監視單元、操作站、通信介面單元連接起來，綜合了計算機技術、通信技術和過程式控制制技術，以適應現代高水平生產控制與企業管理的需要。
  2. Abstract : based on comprehension research into hvac technology for in indoor air quality control, this paper discusses desiccant - wheel based cooling unit, its application in indoor air relative humidity control and the great importance of the unit on the field of energy saving and human comfortability

    文摘:在綜合闡述室內空氣質量控制的暖通空調技術措施的基礎上，著重討論轉輪除濕製冷機組在室內相對濕度調節、室內空氣質量控制、余熱利用、節能等方面的重要意義
  3. The function configuration realization of operation station and field control unit is discussed in this paper. this control system has successfully applied in jiangsu province qishuyan locomotive and railway car factory. the system has strong function, good control effect, and generalize application value

    本課題設計的牽引電機試驗臺現場總線控制系統已經在江蘇戚墅堰機車車輛廠得到了成功的應用，系統功能強大、控制效果好，在鐵路廠、段具有良好的推廣應用價值。
  4. From experimental result, i preliminarily know that eps is good thermal insulation material because the absorption of water is low and heat insulation is good, it is practicable at preserving temperature field of frozen earth roadbed and bringing frozen disaster under control ; second, according to the analysis of the eps that is applied into practical project, i have studied the practical effect which eps preserve roadbed temperature field, and the influence that was made after building field. i have get that eps can influence moisture content and frozen upper limit, through practical measuring data, i have studied freezing and expanding quantity and melting and submerging quantity during a complete frozen and melting cycle as well as have expanded and proved the practical application effect of eps with some reference significance to deep research of some connected problems. finally, through computer data analysis, setting up the analytical model of finite unit, i have simulated the temperature field of roadbed heat preservation, then expounded and proved that the height of embankment influenced the effect of thermal insulation material

    其一是對聚苯乙烯泡沫塑料（ eps ）保溫板以及天然路基土層、路堤填料進行了室內試驗分析，結合國內外現在的有關科研成果，綜合確定其各項特徵參數；從試驗結果初步認識到聚苯乙烯泡沫塑料是一種吸水率低，隔熱性好的保溫材料，在凍土路基溫度場的保護和凍害治理方面是可行的；其二通過eps保溫板在現場工程實踐中的應用分析，研究了保溫板在保護路基土層溫度場的實際效果以及修築路堤后造成的影響，保溫板對土體含水量、凍結上限的影響，通過實測資料，研究了在一個完整的凍融周期內整個路基的凍脹量和融沉變形量，論證了保溫板的實際應用效果，對有關問題的進一步研究和相關工程設計具有參考意義；其三，通過計算機數值分析，建立有限元分析模型，對保溫路基的溫度場進行了模擬計算，論證了路堤高度對保溫材料效果的影響。
  5. The integral calculus formula is deduced, in which the first derivative of physical measures of system with respect to time equals the partial derivative of physical measures of control field to time plus clear flux of physical measures passing the control line within unit time

    推導出交通流系統所具有的物理量對時間的全導數的積分公式，即系統內物理量對時間的全導數等於控制域內該物理量對時間的偏導數與單位時間經過控制線的該物理量的通量之和。
  6. You can use data typing to control tag content - for example, the quantity field in a purchase order is a non - negative integer because the customer can t order less than a whole unit of the product

    可以使用數據類型化控制標記的內容，比如，訂單中的數量欄位是一個非負整數（因為客戶不能訂購產品的某一部分） 。
  7. The principle of flow measurement is also presented. based on general pc - based programmable controller, the general and flexible measure - control field unit is developed, which has specialty characteristics and is suitable for different water measuring devices

    為適應在不同的測流方式下的數據採集和流量計算，採用通用的pc - based可編程式控制制器，用c語言開發出具有專業特色、通用、靈活的測控一體現場單元。
  8. According to the fact that power factor of low voltage power networks is very low in china and field bus technology is developing in the world, in order to enhance power factor of low voltage power networks, on the basis of central transmitting and controlling information among every compensation equipment, the author of this dissertation studies systematically the design principles of power factor dynamic compensation system. based on analyzing structure of control system at present, the author of the dissertation puts forward a distributed completely and multi - layer structure framework based on field bus technology and builds a power factor intelligent dynamic compensation system. the functions of compensation unit, intelligent node, host computer, are presented

    根據目前低壓電網用電負載功率因數偏低和國內外現場總線技術的應用現狀，立足於提高交流電機的功率因數，基於將每個補償裝置進行集中監控、信息集中傳遞的思路，本文作者在分析現有的控制系統體系結構的基礎上，提出了基於現場總線技術的全分散式多層控制系統的體系結構，構建了功率因素智能動態補償系統；對補償執行單元子系統、智能節點子系統、上位機子系統三部分進行了功能分析。
  9. Integrating boiler control computer reconstructing, the paper presents the solution of adopting shcan2000 system to realize auto control, including loop auto control, test data auto - collection, friendly human - machine interface, test reports auto building, etc. the function configuration realization of operation station and field control unit is discussed in this paper

    結合鍋爐控制系統改造項目的應用背景，提出了採用shcan2000型現場總線控制系統實現鍋爐生產的自動控制，包括各種迴路自動控制、數據自動採集、友好的人機介面、試驗報表的自動生成等，並介紹了上位機操作站和現場控制單元的功能組態實現。
  10. According to the present problems and developing tendency of hydraulic turbine governor, four main issues of this field are studied in this paper. the content include hydraulic control system, frequency measurement unit, stability of the discrete control system, optimization of control parameters and self - adjusting pid control strategy based on fuzzy logic. several main achievement and results are obtained and shown as follows : the electric - hydraulic pilot valve driven by step - motor is firstly proposed, which solves the problem that the electric - hydraulic converter of hydraulic turbine governor hydraulic servo is prone to be stuck and blocked and improves the systemic stability greatly

    本文根據水輪機調節領域存在的問題和發展趨勢，對水輪機調速器的液壓控制系統、頻率測量環節、離散調節系統穩定性與調節參數最優整定以及適應式參數自調整pid控制策略進行了研究，得到以下主要成果和結論：首次提出了採用步進電機驅動的步進式電液引導閥，從根本上解決了水輪機調速器電液隨動系統中存在的電液轉換元件發卡、堵塞問題，使電液隨動系統的可靠性大大提高。
  11. Wide plus ak series intelligent pressure transmitter which is universal intelligent series transmitter, it introduced advanced production technology from america and japan adopts the world leading technique, pass through strict quality control. this kind of transmitter is searched and developed independently by our company that is pressure detect transmit unit in the industrial automation control system. it measures fluid pressure in the industry process and converts it into 420 ma dc signal output ; at the same time, it may be remote parameter setup, remote control, self - diagnosis by field hart protocol

    Wideplus - ak系列智能壓力變送器是引進美國和日本的先進生產工藝，採用世界領先技術，經過嚴格的品質管理，由我公司自行研製和開發的通用智能型系列變送器，是工業自動化控制系統的壓力檢測變送單元，它測量工業過程流體壓力，將其轉化成4ma 20ma dc信號輸出，同時通過現場hart協議可進行遠程參數設定遠程控制自診斷等功能。
  12. Ak series intelligent pressure transmitter which is universal intelligent series transmitter, it introduced advanced production technology from america and japan adopts the world leading technique, pass through strict quality control. this kind of transmitter is searched and developed independently by our company that is pressure detect transmit unit in the industrial automation control system. it measures fluid pressure in the industry process and converts it into 420 ma dc signal output ; at the same time, it may be remote parameter setup, remote control, self - diagnosis by field hart protocol

    是引進美國和日本的先進生產工藝，採用世界領先技術，經過嚴格的品質管理，由我公司自行研製和開發的通用智能型系列變送器，是工業自動化控制系統的壓力檢測變送單元，它測量工業過程流體壓力，將其轉化成4ma 20ma dc信號輸出，同時通過現場hart協議可進行遠程參數設定遠程控制自診斷等功能。
  13. In the new managerial system, the department in charge is responsible for the mandatory management and supervision of construction unit, building section and construction control unit in the macro field. otherwise, the lareral administration by entrustment is executed by construction unit, building section and construction control unit in the micro field. the system of engineering supervision finds itself in an important position

    新型工程項目建設管理系統將政府主管部門放到了宏觀監督管理的位置，對建設單位，施工單位和監理單位實施縱向的強制性的宏觀監督管理，同時在直接參與項目建設的建設單位、監理單位與施工單位之間又存在橫向的委託性的微觀監督管理，工程項目建設管理系統中的建設監理系統在其中居於核心地位，這種宏觀與微觀相結合的工程建設項目監督管理體制，給我國工程建設領域帶來深刻的變化，有利地促進了工程建設按所要求的目標順利地進行。
  14. In the background of actual power - parameter measurement task, this paper adopts advanced energy chip technology and does some researches about power - parameter remote watching and control system based on lonworks field - bus technology. a power remote terminal unit ( rtu ) eu2502 is developed and realized the detecting of power - parameter based on lon network

    本文正是在這種趨勢下，以一個電力參數測量實際課題為背景，採用先進的電能計量晶元技術，進行基於lonworks現場總線技術的電力參數遠程監控系統研究，研製出電力遠動裝置（ rtu ， remoteterminalunit ） eu2502 ，實現基於lon網的電力參數檢測。
  15. The whole system is made up with upper computer, plc, field instruments, sensors and execution units. the automatic control system of daily sewage processing unit on ship can be accomplished well by the powerful function in da ta acquisition, communication and control of plc

    整個控制系統由上位機、 plc 、各現場儀表、傳感器以及各種執行機構組成，通過plc強大的數據採集、通訊以及控制功能，使整個生活污水處理系統的自動控制能夠得到良好實現。
  16. The design and implementation of remote test unit which completes digital measurements of industry field signals of esp and communicates with monitor control software through can bus network adapter is introduced in this paper

    設計完成上位機監控軟體，在can總線網路適配器和遠程測量單元的支持下該軟體可實現電除塵器運行參數的實時監控和測量數據處理。
  17. The design of the low level hardware such as the intelligent sensor node, the output control unit and the communication protocol converter unit will be given. the monitor system is developed from the national common configuration software - kingview 6. 0. by using this monitor system we can accomplish the communication between the host computer and the field intelligent units and the communication network between two water works

    給出底層硬體（智能傳感器節點、輸出控制單元和通信協議轉換單元）的功能實現並在國產通用組態軟體?組態王6 . 0的基礎上開發監控系統，實現上位機與現場智能單元的數據交換以及廠際聯網通信，滿足了工業生產過程智能化、數字化、網路化的發展需求。
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