redundant field 中文意思是什麼
redundant field
解釋
冗餘域-
The main research content and result are as follows : in relational databases, every field has a certain value, so the redundant space is small
本文的主要研究內容及成果如下:在關系數據庫中，組成元組的各欄位都有確定值，因而冗餘空間很小。 -
By using the principle of the redundant system design in the engineering field and based on the multi - channel electronic model, this paper constructed a new kind of redundant multi - payment electronic payment model that has both high transaction efficiency and good reliability, analyzed the channel selecting method by combining the traits of the electronic payment and wireless communication technology, designed the corresponding user operation flow, worked out the calculation formula of different payment informal ion arrival rate by different redundant design methods and effects on the perceived risk and acceptance degree of the end - user, compared the integrated performance of different kinds of payment models, and solved the decreasing problem of transaction efficiency in the multi - channel payment model
摘要利用工程領域的冗餘設計原理，在多通道電子支付模型的基礎上構建了同時具備高交易效率和高安全性的冗餘多通道電子支付模型，結合電子支付及無線通信技術的特點分析了冗餘通道的選擇方法，設計了相應的用戶操作流程，給出了不同的冗餘情形下的支付信息到達率計算公式、以及對用戶感知風險和接受度的影響，對比了各種支付方式的綜合性能，解決了在多通道支付模型中出現的交易效率降低的問題。 -
This paper ' s main task include : in the aspect of the network communication and database application, to satisfy the demands of the works, the software of sustaining dde is worked out, which realizes the dde with the configure software, so the problem that the instruments " protocols do not match to the configure software ' s is solved ; we work out the software of collecting datum information from the instruments on the rs - 485 bus ; the software of transferring information by the telephony network is worked out, and the software of alarm by beep - pager is work out too ; the software of database report with the performance of supporting com, by which the engineers can visit the field database everywhere in the world ; the software that the two servers are redundant mutually is developed ; some ladder program of plc is developed and the megabasic software is developed which collects datum information from the instruments on the rs - 485 bus
本論文研究工作主要包括： 1在網路通訊和數據庫方面，開發了支持dde通訊方式的軟體組件，實現和組態軟體cimplicity的dde通訊，基於rs _ 485總線的採集智能儀表數據的軟體組件，解決了設計院所提供的智能儀表和cimplicity在通訊協議方面不一致的問題；公用電話網數據傳送的軟體組件，和尋呼機報警的軟體組件；基於access數據庫列印報表的軟體組件和與internetexplore軟體兼容的數據報表，使用戶可以在任何地方，通過internet訪問現場數據庫的內容；上位機雙機冗餘的軟體組件；開發了plc控制器的部分梯形圖，利用plc的pcm模塊採集rs - 485儀表數據的megabasic軟體。 2 -
Simulation results show that the above method is suitable for redundant robot kinematical planning before and after a failure. also, some new problems after free - swinging joint failures are pointed out. combined with the interesting topics in this field, these unsolved problems are discussed in this article
結合冗餘度機器人容錯研究發展的一些方向，例如保證機器人末端軌跡上某些點不發生誤差等等，對本文所研究的內容進行了拓寬，對故障后機器人運動規劃所面臨的一些新問題進行了有益的探討。 -
With the development of computer technology and communication technology of network, the works that were finished by macro computer in past is now replaced by low - level computer, the distributed system is already applied in most field of the society o a new concept of redundant service management system is presented and an architecture of object - oriented distributed redundant service management system is created in this paper, through the analysis to the research of distributed service system at present ? based on the standard of core a, this paper design and realize all functions of the administrator, who take care of all intelligent agent in this system, then overcome many drawbacks in central managing mode, such as scalability, reliability, high - efficiency, flexibility the primary contribution of this thesis include : 1
隨著計算機技術和網路通訊技術的發展，過去需要由大型主機完成的工作逐漸向低檔機型轉移，分散式系統已經用於社會中幾乎各個領域。本課題通過對現有分散式冗餘服務系統研究工作的分析，利用分散式對象技術提出了冗餘服務的新概念，創建了一種面向對象的分散式冗餘服務管理系統框架。並遵循corba標準，設計並實現了管理系統中全局管理者administrator的各項管理功能，克服了以往集中式管理帶來的在可擴展性、可靠性、高效性以及靈活性等方面的許多缺點。
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