modem controller 中文意思是什麼

modem controller 解釋
數據機……
  • modem : n. 【無線電】數據機。vt. 【計算機】通過數據機向…發送電子郵件。vi. 用數據機聯通。
  • controller : n 1 管理人，主管人。2 （會計的）主計人，檢查員；〈英國〉（特指宮廷、海軍等的）出納官〈常作 comptr...
  1. Plc, robot and cad / cam are called the three major pillars in the modem factory automation. plc, as the head of the three, has become the leading basic automatic equipment in the field of the industry control in the early 1980s " but as a matter of fact, plc being with the lack of friendly man machine interface, rnakes no close relationship between human and machineometimes it even can not be promoted and applied in some fields aiming at the situation mat those imported products are too expensive while domestic products are of rare famous brands, a plc man - machine interface - plc monitor is developedthis paper systemically introduces the developing procedure for the whole system, including how to design hardware and software system. especially emphasizing plc communication protocol. real time message accessing, lcd controller instruction set, definition of data construction for message & tag screens and how to display thern, assignment of internal resource of cpuealization in software among plc & manitor, file format defining a nd download of user data, etcplc monitor will compensate some weakpoints of plc, and extend the application rangeimultanneously enhance the performance of plc and increase the attached value of mechanical machines, undoubtedly it will see hight market prospect

    針對人機界面進口產品的高昂價格和國產品牌稀少的這一現狀，研製開發了一種plc人機界面? plc監控器。本文系統地介紹了整個系統的開發過程，包括硬體系統、軟體系統的設計及實現，重點介紹了plc通信協議，監控器的基本工作原理以及期望實現的功能，監控器電源電路、 sram存儲器掉電保護電路、 cpu監控器電路、按鍵輸入電路的設計及按鍵狀態的讀入，時鐘信息的設定與讀取， cpu液晶顯示器指令系統，信息畫面及標簽數據結構的定義及顯示方法， cpu內部資源的分配，監控器與plc通信的軟體實現，文件格式的定義以及畫面數據的下載等。 plc監控器彌補了plc一些方面的不足，可以擴大plc的應用范圍，提升機械設備的檔次，增加設備的附加價值，具有一定的市場前景。
  2. This paper aims at the request of distribution automation and the disadvantages of existent ttu products and puts forward a scheme of ttu design : dsp ic tms320lf2407a of ti ltd. is chosen as a controller because of its high performance ; a three - phase power / energy ic developed by sames ltd. is used as a measure module to simplify the hardware circuit and software program ; the embedded modem and rs485 / rs232 mode communication interfaces are designed to make the data transfer more flexible and effective ; the 101 communication protocols of international electric power standard are adopted to improve its compatibility

    本文針對配電自動化的要求及現有ttu產品的不足，提出了一種基於dsp的配電變壓器遠方終端單元的研製方案：微控制器選用ti公司高性能定點dsp晶元tms320lf2407a ；使用sames公司推出的三相電能計量晶元sa9904a作為測量模塊，簡化了硬體電路和軟體編程；採用siliconlaboratories的嵌入式modem 、 rs485 rs232等多種通信方式，使數據傳送變得靈活、高效；為了提高設備兼容性及通用性，通信協議採用國際電力標準101規約。
  3. Realize long - range way that control we adopt at present management convenient, run cost low carrying on long - range to control through public telephone network relatively, already original each led display screen 3 parts of system on the spot ( display screen, controller, computer ) change into whole system adopt two computer can control and show display screens and controllers of place all, join through public telephone network controller realize go on and control and realize and show to led display screen content upgrade, realize computer to each display screen long - range to control and upgrade content transmit, increase modem and one design with special - purpose on the modem and led interface board of display screen of joining fully and newly at hardware of system, this is to make up into a special - purpose long - range controller the controller in the modem and original system

    實現遠程控制的方式我們採用目前管理方便，運行成本較低的通過公共電話網路進行遠程控制，既將原來的每個led顯示屏系統的3個部分（顯示屏、控制器、計算機）改為整個系統中採用兩臺計算機就可以控制全部顯示地點的顯示屏和控制器。通過公用電話網連接控制器實現對led顯示屏進行遠程控制和顯示內容的更新，從而實現計算機對每個顯示屏進行遠程控制並對顯示內容進行更新。在系統的硬體上增加了數據機和一塊全新設計專用於連接數據機和led顯示屏的介面板。
  4. Asynchronous modem controller diagnostic

    異步數據機控制器診斷
  5. In hardware system design, we adopted the microcontroller of at89c51 as the main controller of inferior processor, it is used to connect the modem with the data acquisition module. mcs - 51 assemble language is used to program the software of the device to realize the data transmission between modem and inferior processor. when the electric power in the run is beyond the specified value, the inferior processor can dial the phone number of central computer automatically to send the alarm message through the communication line. using a single - chip microcomputer to control a modem to transmit remote datas are introduced in detail

    隨后詳細地介紹了系統的總體設計思想和具體的實現過程。在硬體系統設計中，採用了at89c51單片機作為下位機主控制器，用於連接modem和數據採集模塊。通過使用mcs51匯編語言編寫程序，實現了下位機與modem之間的數據傳輸，同時實現了自動檢測負荷，進行撥號報警的功能，其中重點介紹了單片機控制modem進行遠程數據傳輸的方法。
  6. It s now possible to connect twidosoft to a twido controller using serial link, modem or usb port ( under windows 2000 and xp, using tsxpcx3030 cable )

    更多的通訊連接方式升級后的twidosoft支持通過串口， modem ，或usb埠與twido控制器連接進行編程。
  7. The upper computer that connected with modem via rs - 232, and the modem connected with the public telephone network in the monitoring center communicated with the distant controller

    上位機通過rs - 232與modem相連接入公用電話網，實現對單片機控制器的遙測、遙控。
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