serial digital operation 中文意思是什麼
serial digital operation
解釋
串列數字操作-
The characteristics and the design concepts of the transient electro - magnetic methods system design of predecessors will be analyzed detailedly in this thesis, on the foundation, the transient electromagnetic exploration system based on dsp ( digital signal processor ) and usb ( universal serial bus ) was designed, in which the transmitter and receiver have been integrated together for the sake of better operation for exploration
在總結前人在系統設計的基礎上，成功設計和實現了一套基於dsp （ digitalsignalprocessor ）和usb （ universalserialbus ）技術的瞬變電磁探測系統，本論文就該系統的設計思想和原理進行了詳細論述和分析。 -
Intelligent counter digital frequency rotating speed line velocity display control transmit instruments are all adopt used advanced microprocessor for smart control. input is pulsed quantity or contect switch quantity signal, after cpu operation processing, count, rotating speed or line velocity will be clearly intuitional indicated by high brightness led numeral tube, at the same time, these signals can be changed into standard voltage current signal to transmit output. and have the functions of super - limited alarm, standard serial communication function
簡易后備操作器接收從dcs系統或pid調節器給定的模擬量信號，正常控制時，操作器輸入輸出相當于直通的，以實現dcs系統或pid調節器對執行機構的自動控制，當前級dcs系統或pid調節器發生故障時，操作器接收到故障狀態信號，即轉為手動控制狀態，由按鍵控制操作信號的輸出，當故障解除，儀表自動恢復自動狀態。 -
Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail
針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。
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