電路交換制 的英文怎麼說
中文拼音 [diànlùjiāohuànzhì]
電路交換制
英文
circuit switching system- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 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
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 電路 : [訊] circuit (ckt); electric circuit; electrocircuit電路板 circuit board; 電路保持 guard of a c...
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For a long time, incumbent carriers tended to regard spc exchange, ddn, fr, atm and ip equipment as leading network elements. most often than not, the transmission equipment is only seen as supportive parts for those leading elements
長期以來,主體電信經營商都認為程式控制電話交換機、 ddn 、 fr 、 atm 、 ip等設備是作為網路的主體,而傳送設備僅認為是這些設備的配套。Electric - controller is nubbin in developping. we are based on designing to structure of circuit, we are dead against in time and stabilization for controlling and communications, precision and rapidity for transformation etc. we have completed to select on microprocessor, clock - frequency and a / d transfer. it carry out transformation for valve position signal, and select on solid - switch ac
在控制器的電路結構設計的基礎上,考慮到通訊、控制的及時、穩定、轉換的精度和速度等幾方面,主要完成對微處理器的選擇、時鐘頻率和a d轉換器的選用,閥位變送功能的實現,固態交流開關和顯示器的選擇等。The three - order modulator has a 2 - 1 cascaded structure and 1 - bit quantizer at the end of each stage, the modulator is implemented with fully differential switched - capacitor circuits. and then, the discussion will begin by exploring the design of various circuit blocks in the modulator in more detail, i. e., ota, switched - capacitor integrator, quantizer, two - phase non - overlapping clock signal, etc., at the same time, these circuits will be simulated in spectre and hspice. at last, the whole cascaded modulator will do behavioral level simulation by matlab soft and simulink toolbox
本論文中,首先介紹模數轉換器的各種參數的意義,以及一階sigma - delta調制器和高階sigma - delta調制器的原理;給出解決高階單環sigma - delta調制器不穩定性的方案,引入級聯結構調制器,特別針對級聯結構調制器中的失配和開關電容積分器的非理想特性進行詳細的討論;本設計的sigma - delta調制器採用2 - 1級聯結構和一位量化器,調制器採用全差分開關電容電路實現;同時對整個調制器的各個模塊進行了電路設計,包括跨導放大器、開關電容積分器、量化器、兩相非交疊時鐘等,並利用hspice和spectre模擬工具對這些電路進行模擬測試;最後,利用matlab軟體和simulink工具對整個級聯調制器進行行為級模擬。Jon walks into the campus security office in his telco costume and explains that he has been called out by the local exchange carrier because a circuit appears to be looped from the telco
Jon穿著他的電信制服走入場地安全辦公室,然後說明他是由本地交換運營商( local exchange carrier ( lec ) )派來的,因為看來電路從電話公司形成了迴路。During the period of measurement, the transduction circuits transform the differential pressures, the absolute pressures and the temperatures received by the sensors into the voltage signals, and then, the voltage signals are transformed into digital signals by the a / d convertor. the mcu processes these digital signals and calculates the cumulation of the flow. finally the totalizers contact with the pc by rs - 485 bus to form a distributed measuring network
在測量過程中,系統以流量計節流所獲得的差壓信號作為主信號、絕壓和溫度信號作為補償信號進行流量積算,這三種信號分別由相應傳感器感知后,經各自的物理信號測量電路轉換為電信號,再由a / d轉換模塊轉變為數字量,交微控制器進行處理、積算。The telephone network based on circuit - switching and digital program controlled exchanging technology plays an important role in the whole communicating networks
以電路交換和數字程式控制交換技術為基礎的電話網更是在整個通信網中占據著重要的地位。The network forming scheme was put forward in accordance with hubei electric power program - controlled exchanging network. the problem with network forming of voice exchanging network of atm exchange was discussed
摘要概據湖北電力程式控制交換網的現狀提出了組網方案,並對atm交換機在話音交換網路組網方面的問題作了探討。It can provide many functions : the conversion between transfer formats, the conversion between communication protocols, the conversion between analog signals and digital signals, the conversion of control commands, real time audio code / decode, ip call control, control of rtp / rtcp, call detail logs, accounting and some of gatekeeper ' s functions such as address tansfer / search.
它提供以下功能:傳輸格式間的轉換,通信規程間的轉換,音頻、數據格式轉換,呼叫控制信令的轉換,對pstn的呼叫控制功能, pstn電路交換功能,實時語音處理語音壓縮功能, ip網路呼叫控制功能,對實時對話協議rtp rtcp的控制功能,呼叫日誌,計費功能,還包括關守的地址翻譯搜索等功能。Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method
在本設計中,採用高速的dsp處理器,實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法,實現了大電流信號的驅動輸出;採用485總線技術,組建了裝置主機與多探測器之間的主從式通訊網路,實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路,採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術,實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元,設計了人機信息交互的介面;採用了模塊化的軟體設計方法,開發了裝置主機及探測器的軟體程序。Whether it has formulated policies and measures to set up an internet exchange centre in asia, encourage local internet service providers to link up with network operators in the mainland, and encourage international telecommunications carrier companies to roll out their cable networks in hong kong, with a view to promoting the development of a commercial data exchange centre and strengthen hong kong s status as an information hub in asia ; if it has, of the details of such policies and measures ; if not, the reasons for that
(四)有否制訂政策及措施,以成立亞洲網際網路交換中心、鼓勵本地網際網路服務供應商與內地網路商連結,及鼓勵國際電訊傳送公司在本港敷設電纜,藉此推動發展商營數據交換中心及鞏固香港作為亞洲資訊樞紐的地位;若有,政策及措施的詳情;若否,原因為何?Electricity metering - data exchange for meter reading, tariff and load control - data link layer using hdlc protocol
電量測量.電表讀數計費和負載控制的數據交換.使用hdlc協議的數據鏈路層Code for design of railway spc digital telephone switching engineering
鐵路時分數字程式控制電話交換工程設計規范Optical relay network technoiogy is to buiidup various teiephone networks by the flexible sdh transmission equipment working with stored program control switches. at present, it has been adopted by most of telecom operators in iocal networks of pstn and becomes an eff6ctive solution to imp the operation cost, improve the qos, as well as faciiitat6 the oam
光中繼組網就是利用同步數字體系( sdh )傳輸設備本身組網的靈活性來配合程式控制交換機組成各種電話網路,在目前的公共電話交換網路( pstn )中的本地網路中,較多地被電信運營商所採用。At the same time, the method of disposal phase shift of ct by compensation is introduced. then the analysis and statistic of electrical power quality, the control scheme and compensating amount of capacitor for reactive power compensation are analyzed respectively. and in the paper, the control with a / y and the switch with ac contactor and solid state switch is valid measure not only for improving operate level economically and amending electrical power quality but also for avoiding of replacing switch frequently and decrease economic loss
然後對現有的演算法進行了詳細的分析、比較,篩選出既能滿足硬體要求又可降低投資、保證精度、簡化軟體的方案,確定了準同步采樣的方案,並通過對準同步采樣誤差的分析,提出了一種從45開始采樣,從而提高精度的采樣數據處理辦法,同時,對于電流互感器相位漂移提出了一種補償辦法,接著對裝置中電能質量分析與統計以及無功補償中電容器的補償量、投切原則也作了相應分析,其中對于無功補償採用y混合接線,並利用交流接觸器和固態開關共同投切電容,不但提高了經濟運行水平、改善了電能質量,而且有效的避免了頻繁更換開關,減少了經濟損失;最後,設計了裝置的硬體電路並繪制了相應的軟體流程圖。Computer used in telecommunication not only play as control part in exchange or transmission devices, but also become a part of speech communication to provide intelligentized speech service
計算機已經不只是簡單作為電信交換和傳輸網路的控制部分而存在,而是逐漸演變成語音通信的一部分,將智能化的語音延伸到通信網路的每一個角落。While ss7 deals with non - circuit switched data ( messages are transported without a dedicated circuit established for that purpose ), the function of the isdn - up ( isup ) is to control the circuit - switched voice or data connection services
Ss7是處理非電路交換數據(傳輸消息時,沒有建立用於該目的的專用電路)的,而isdn - up ( isup )則實現控制電路交換語音或數據連接業務的功能。The softswitch is the core technology of the next generation network, for it can be the core to offer calling, control and service for voice service, data service and video service in the next generation network, and it also plays the key role in the evolvement of scn to the psn
軟交換是下一代網路的核心技術,因為它可以成為下一代分組網路中為語音業務、數據業務和視頻業務提供呼叫、控制和業務的核心,同時也是電路交換網向分組網演進的關鍵。We build up the protocol architecture of ms of calss b according to two different transport mechanisms, i. e. circuit switch and packet switch. we also briefly illuminate each module of the protocol
依據電路交換、分組交換這兩種不同的傳輸機制,論文給出了實現b類ms的協議結構,並給出了各協議模塊的簡單的說明。Call routing and intelligent control are closely linked with the circuit switched network
呼叫路由與智能化控制和電路交換網路緊密地結合在一起。The limited number of sites and unattractive charges are problems arose in the process of operators and icps deploying the service and the restrictions on the terminals mostly refer to the small - sized displays of the handsets and the inconvenience of entering characters through the keyboard, which are manufacturers problems. as to slow connectivity, it seems to be the weakness of wap. however, the fact is that there is a limit of 9600 bits on the circuit - switched data services provided by the gsm network and this is the very bearer mode that is currently selected by wap established on the network layer. this only means that people do not accept wap over csd
站點少、資費並不具吸引力等缺點是運營商與icp在對該業務推廣的過程中所顯現的問題;來自於終端的限制則是手機製造商的問題,雖然各大廠商都推出了支持wap的手機,但用戶的批評大都集中在手機屏幕太小及輸入不方便;至於連接速度慢,這似乎是wap本身的缺陷,但事實是gsm網路所能提供的基於電路交換的數據業務存在9600bits的限制,而建立在網路層之上的wap目前選擇的恰恰是這種承載方式,因此只能說wapovercsd這種業務提供模式人們不能接受。分享友人