線路交換系統 的英文怎麼說
中文拼音 [xiànlùjiāohuànxìtǒng]
線路交換系統
英文
circuit switching system- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 路 : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
- 交 : Ⅰ動詞1 (把事物轉移給有關方面) hand over; give up; deliver 2 (到某一時辰或季節) reach (a cert...
- 換 : 動詞1. (給人東西同時從他那裡取得別的東西) exchange; barter; trade 2. (變換; 更換) change 3. (兌換) exchange; cash
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 統 : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
- 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
- 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
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This is a computerised voice communication system between pilots and air traffic controllers, and between air traffic control positions in the air traffic control centre, aerodrome control tower, rescue coordination centre and aeromobile centre by using pre - set switching and distribution of various aeronautical frequencies and direct communication lines. the new computerised system will enhance the overall efficiency in communications
讓機師與管制員之間,或航空交通管制中心、指揮塔、援救協調中心和航空通訊中心內各不同管制崗位之間,能用預先設定的系統作直接通話,包括可轉換和發布的航空通訊頻道和直接通訊線路等。With the setting of the peculiar conditions, we contribute the above system model for the first time to a kendall model, i. e. / l, : the size of buffer 1 / fcfs ( for same kinds of cells ) / l2 : the size of buffer 2 / non - prevail pr ( for different kinds of cells ) we resolved the model by " state transfer " method
在設定工作環境及條件的基礎上,本論文首次為該系統模型建立了肯達爾排隊模型。即:並運用狀態轉移方法進行了解析。最後的模擬實驗數據表明優先級調度輸入?線群多通道輸出atm交換系統模型較好地改善了hol阻塞,提高了輸入排隊atm交換網路的性能。This paper designs a network interface for digital stored - program - control exchange. this interface connects digital stored - program - control exchange from pcm, and connects ethernet from rj45
該網路介面系統一端通過pcm基群串列總線連接數字程式控制交換機,另一端經rj45口與以太網相連。The paper tend to study the bus rapid traffic ( brt ) system which is suit in the chinese big cities in today or the beginning decays of the 21 century. the system is mainly make up of the ; key bus rapid rout network. first, the thesis analysis the urban structure infect the urban " traffic demand in view of the urban planning. then due to urban public traffic need the paper study brt system and it ' s practice and development in foreign cities, for example, the successful experience in curitiba
論文首先從城市規劃的角度入手,分析城市布局發展對城市客運需求的影響;然後根據城市客運交通的需要介紹和討論了快速公交的構成系統及其在國外庫里蒂巴等城市的發展經驗,並進行了總結;接著,對在我國大城市中構築快速公交網路進行探討研究,這也是論文的中心部分,在快速公交網路結構規劃方法上進行了一定的創新,提出了「分級規劃,分區布線」的快速公交線網規劃方法,並對網路結構中的換乘設施規劃設計進行研究,在整個快速公交網路規劃的基礎上建立了一套公交線網規劃的評價指標體系。Switch - based interconnects with irregular topology allow the wiring flexibility, and incremental expansion capability required in this environment. however, the irregularity also makes routing and deadlock avoidance on such systems quite complicated
Autonet , myrinet等用於nows的交換式高速網路使布線靈活、系統可擴展能力加強,但其拓撲的不規則性使路由避免死鎖的問題變得復雜。Conversation by overhead line, 900 miles - new york to chicago. first commercial strowger installation ; laporte, indiana, usa. used switcher with 100 line disc - type banks
全長900英里,從紐約到芝加哥的架空電話線開通。第一個商業化的史端喬系統在美國印第安納州拉波特安裝。使用的交換機帶有100個線路排線架。Give actual mine transportation vechile system and transportation routs conditions, it can automatically find out satisfactory solutions to vechile scheduling design through genetic operations such as reproduction, crossover and mutation, etc. a new mean is offered in mining management automazation and intelligence
對于給定的礦山運輸車輛系統和運輸線路,經過遺傳演算法的復制、交換、突變等操作可以自動得出滿意的車輛調度方案,為采礦生產管理的自動化和智能化提供了一種新工具、新方法。The second chapter simply introduces the development of alternate asynchronous inverter technology and retrospects some types of energy - saving systems for hydraulic elevators. then the working principles of the project are discussed and analyzed at four different working status, i. e. light load upwards, heavy load upwards, light load downwards and heavy load downwards. and the chapter focus on the introduction of structure design of pump station, calculation and type selection of pump / motor reversible units, research on oil leakage principles of accumulator circuit, design of accumulator - pump / motor pressure - energy transformer and integrated valve blocks, etc. the last but not the least, the electrical wiring of vector inverter control cabin and design of computer control and data acquisition system are introduced
論文第二章首先簡單介紹了交流異步電動機變頻調速技術的發展概況,在回顧電梯液壓控制系統節能技術的基礎上,介紹了本課題研製的「採用蓄能器的液壓電梯變頻節能控制系統研究」的基本原理,分析了動力系統在電梯轎廂輕載上下行、重載上下行等四種典型工況下的基本工作狀態和工作方式;詳細地介紹了本課題節能系統液壓動力泵站的結構設計和參數設計,重點研究了液壓動力泵站的結構設計、液壓泵馬達可逆性問題及其選型設計計算、蓄能器迴路泄漏油損失機理的研究及其補償裝置的設計、蓄能器-泵馬達壓力能量轉換裝置的設計、多功能集成控制閥組的設計等內容;最後簡單介紹了本課題矢量控制變頻控制櫃的外部附件電氣接線、計算機控制及數據採集系統的硬體設計等內容。It eliminates the need for agent blocks to have specific knowledge of ram array behind it. it takes care of protocols and latencies in an effort to simplify memory access by the agent blocks. agent blocks " see " a single linear frame buffer, all paging and bank swapping is handled by the and is transparent to the agent blocks
在嵌入式系統晶元中高速存儲器介面控制電路是系統必不可少的重要組成部分,由於有了存儲器介面的存在,使得系統內部客戶模塊不必專門了解存儲器本身的復雜特性,而只需關心傳輸協議和一些定義的遲滯參數,在客戶看來存儲器僅僅是一個線性的幀緩沖器,所有的換頁、區段切換都交由介面電路來處理,從而大大簡化了客戶對存儲器操作的復雜度。Secondly, he establishes a rule table of vehicles " behaviors based on analyzing them. the table can simplify the model of vehicle ' s following and lane changing so that it will shorten the time of simulation. and thirdly, by using the cache technology of level - two time cell, the author solves the conflict, which arises from the limited memory and the masses of cache that is needed to get the better precision in simulation
本文在系統設計中,用匝道控制和主線控制相結合的方法,進行高速公路全線交通的綜合控制,優化控制效果;根據車輛行為分析,建立了車輛行為規則表,將車輛跟馳模型和換道模型簡化為車輛行為表,減少了模擬時間;採用二級時間片的緩沖技術,解決了模擬過程為達到較高模擬精度所需的大量緩存與有限內存空間的矛盾。The academic turns and returns in the studies of literary theory are generally characterized by the co - existence, the chronological presence, or the alternative performance of several literary theories that make a comparatively stable but changing and open academic line or circle
摘要本文指出,文藝理論研究的學術輪回和學術回歸現象往往呈現為幾種文論學理系統或同時共存,或歷時態競相出場、交替彰顯和輪番表演,從而構成一個既相對穩定又不斷變換著的開放的學術路線圖和循環圈。This facility is important in some pbx systems which use nonstandard lines that certain modems will interpret as a dead line
這種設備在某些專用小交換機系統中非常重要,這些系統用的是非標準線路,某些數據機會把它們當作死線路。Taking dc motor test as an example, a creative idea of applications of some advanced signal processing tools, such as time - frequency analysis, wavelet, and instantaneous frequency ( if ) evaluation, in motor testing field is presented. the paper systematically summarizes basic theories of time - frequency analysis and wavelet transform based on which an in - depth research of effective if evaluation based on wavelet ridge and wavelet curve is carried out. in the end a fast t - n characteristic testing system with neither torque nor speed sensor is successfully developed
本論文主要關注小波分析在電機性能自動測試系統中的應用,針對傳統電機測試系統以及信號處理技術在電機測試領域中應用的不足,以直流電機為例,提出了將時頻分析、小波包變換以及基於小波脊的瞬時頻率提取方法應用到電機測試領域的新思路;較系統地總結了時頻分析和小波變換的基本理論,深入探討了基於小波脊線和小波曲線的瞬時頻率提取,並成功開發了基於正交小波包分析和基於小波脊線的瞬時頻率提取的無轉矩轉速傳感器的直流電機快速測試系統。Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly
但是高性能的交流調速系統實現很困難,這是因為交流電機是多變量、強耦合的非線性系統,不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題,其基本思路? ?應用坐標變換將三相等效為二相,實現定子勵磁電流分量與轉矩電流分量之間的解耦,達到對交流電機磁鏈與電流分別控制的目的,交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步,計算機技術飛躍發展,高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中,促進矢量控制迅猛發展,日趨成熟。It discusses the characteristic of each level in osi model from the point of wwan first, then analyses clearly the primary technologies used in gprs / sms / csd and a topology structure model of the wwan based on gprs / sms / csd is presented. it also deeply discusses the integrate technology of gprs / sms / csd in a example of fujian environmental automatization system, at the same time a network model of wwan based on gprs / sms / csd is brought forward. last, there are the module programmers of the system
本文從計算機開放系統互聯參考模型入手,按osi參考模型7層協議結構順序,逐步介紹了在無線廣域網環境中osi層次模型的特點,在此基礎上,詳細分析了gprs / gsm技術和簡訊息技術,並給出一個基於gprs /簡訊息/ csd的無線廣域網的網路拓撲結構;以福建省環境自動監測監控系統的分析和設計為例,探討了現階段gprs技術和簡訊息技術、電路交換技術在無線計算機網路系統中的集成問題,並給出了一個基於gprs /簡訊息/ csd的無線廣域網網路模型,最後是系統的模塊程序設計。3 ) design switch system using eda based on the result of a11alysis. because the function of switch system is very complicated, some modules are designed by schematics directly, most modules are designed by verilog hdl using eda technology, synthesized by the synopsys software. at last a high speed atm switch system is designed, including voq as input buffer strategy dpa cell scheduling algorithm and crossbar switch fabric
在前面分析的基礎上根據目前的條件,對一個空分交換系統各模塊進行前端設計和模擬,由於交換系統的功能復雜,我們一部分將採用直接畫原理圖的方法進行設計,大部分將採用集成電路設計自動化的方法進行設計,即採用硬體設計語言verilog ? hdl進行設計,用synopsys軟體對設計進行綜合,生成線路圖,然後作門級電路模擬。The research content of this thesis involves the interface and data exchange mechanism between railway ticketing system and railway wireless ticketing system. additionally, the paper simply introduces the development of application software of pos terminal and wireless communication agency
本論文的研究內容還涉及鐵路客票系統與無線售票系統之間的介面及數據交換機制,對無線售票系統的pos機應用軟體、移動通信代理軟體的開發也作了簡要介紹。The article generalized the interception mode of packed switched network, viop system based on sip and ip network from circuit switched network. the voip system based on sip is distributed system
因此,本文在無線通信系統電路交換域的合法偵聽系統研發的基礎上,將其偵聽模型推廣到包交換域、基於sip的voip系統和ip網路。The author had taken part in the development of telecommunication monitor system ( tms )
本人參與了無線通信系統電路交換域的合法偵聽系統研發。Apart from the above weather stations, meteorologists from the three places also established over the years the exchange of real - time weather information through dedicated data lines, the networking of weather radar data from the area, and the closer consultation among forecasters in these places during the approach of severe weather. currently in progress is the expansion of swirls ( short - range warning of intense rainstorms in localised systems ), developed by the hong kong observatory, to a rainstorm forecasting system covering the pearl river estuary
除上述氣象站外,三方的氣象人員多年來還實現了利用專用數據線路交換實時氣象資料、將三地的天氣雷達數據聯網、以及加強了三方預報員進行重要天氣評估的磋商等。目前正開展工作,以香港天文臺開發的小渦旋暴雨臨近預報系統為基礎,致力擴展成一套覆蓋整個珠江三角洲的暴雨預報系統。分享友人