信元中繼 的英文怎麼說

This paper first begin with the connotation of virtual instrument technology, study and discuss the criterion and the working theory of usb deeply. on the principle of usb1. 1criterion, using usb interface chip usbn9604 and low consumption mirochip c8051f231, we designed the available interface of usb bus and its controlling software, turn the communicating function based usb bus between computer and testing device. second based on the developed interface of usb bus, using microchip pic16c62 and a mount of relays, we designed the multiswitching scanner and its controlling software to complete the funtion of accesses swithing in testing system. third calling the api function inside the windows using vb programming language, communicat with the impelling program of selected hid, achieve the function of testing instrument with usb interface, complete the development of upside software faced testing. at last, based on the deep studying of pcb testing method, used the developed multiswithing scanner and software faced testing, combinated with necessary testing instrument, we constructed the pcb testing system and analized the testing result simply

論文首先從虛擬儀器的技術內涵出發，深入研究和討論了通用串列總線usb規范及工作原理，並依據usb1 . 1規范，採用usb介面晶元usbn9604和低功耗微處理器c8051f231設計開發了通用的usb總線介面及其控制固件，實現了通用計算機與測試設備之間基於usb總線的通信功能；其次，在所開發的usb總線介面的基礎上，使用微處理器pic16c62和多路繼電器開關，設計開發出實現測試系統中測試通道切換功能的多路通道掃描器及其控制固件；再次，採用vb語言編程，調用windows內部api函數，與選定hid類驅動程序進行通信，實現usb總線介面測試儀器功能，完成面向測試的上層軟體開發；最後，在深入研究印刷電路板測試方法的基礎上，利用已開發的多路通道掃描器和面向測試軟體，結合必要測試儀器組建印刷電路板測試系統，並對測試結果進行了簡要的誤差分析。

This thesis explains the necessity of the character recognition technology of the computer at first, describe the meaning in which the handwritten numeral discerns ; pretreatment technology of handwritten numeral recognition, including two value, line segmentation, word segmentation smooth, removing noising, standardization and thinning are discussed two value concretely discusses whole threshold value, some threshold value, dynamic threshold value and utilize space information to carry on threshold, which are several kinds of common method of choosing threshold value, especially utilize space information to carry on threshold value is describe in detail ; adopting to the foundation of thinning based on mathematics morphology, thinning algorithm of serials same and thinning algorithm of protecting shape are discussed ; afterwards, according to principle ' s diagram of the on - line character recognition, by analyzing the structure feature of the handwritten numeral, this thesis has proposed the online recognition te chnology of the free handwritten numeral based on the stroke feature and the online recognition technology of the free handwritten numeral based on the multistage classifying device. detail narrated noise removing, stroke characteristic definition and discernment, distance criterion of whole word match ; then under the foundation of handwritten numeral segmentation, off - line handwritten numeral recognition is researched. especially minimum distance classifying device, tree classifying device and adaptive resonance ( art ) network classifying device is discussed at the same time, believes degree analyses are introduced to integrate a lot of classifying devices ; at the end, the typical application of the handwritten numeral recognition was briefly narrated, its application in extensive data statistics, financial affairs, tax, finance and mail sorting have been explored

二值化時對整體閾值二值化、局部閾值二值化、動態閾值二值化和利用空間信息進行閾值選取幾種常用的閾值選取方法進行討論，特別對利用空間信息進行閾值選取進行了詳細論述；在對通過對基於數學形態學的細化的基礎上，討論序貫同倫形態細化演算法和保形的快速形態細化演算法；然後依據聯機字元識別原理框圖，分析了手寫數字的結構特點，提出了基於筆劃特徵的任意手寫數字在線識別技術和基於多級分類器任意手寫數字在線識別技術，對其中涉及的筆劃識別前的噪聲處理、筆劃間特徵量的定義及識別、整字匹配的距離準則進行了詳細敘述；繼而在對手寫數字的分割的基礎下對脫機手寫數字識別進行了研究，對基於最小距離分類器字元識別、基於樹分類器的字元識別、基於自適應共振（ art ）網路的字元識別分別進行了詳細討論，並引入置信度分析將多個分類器進行了混合集成；最後簡單闡述了手寫數字識別的典型應用，對其在大規模數據統計、財務、稅務、金融及郵件分揀中的應用進行了探索。

In january, 2002 it was rated as “ fang xin me, which means ”, casting no doubt about its quality huaining people inherit the spirits of the “ two - bomb hero ”, deng jiaxian, in pursuance of the moral, “ do it best, and ualue honesty and sinerity ”

「獨秀故里稼仙米，稼先精神勵其行」 ，懷寧糧食人繼承「兩彈元勛」鄧稼先的精神，追求卓越，注重誠信，生產的稼仙米無愧於中國糧食行業協會白美清會長的「民以食為天，好米數稼仙」的題詞。

The dc regulated power supply provides steady voltage to signal circuit, driving circuit, relay safeguard circuit and so on

直流穩壓源用於對實驗單元中的信號產生電路、驅動電路以及繼電操作和保護電路提供恆壓電源，使得這些電路能夠正常工作。

But, the alarm signals from scada have disadvantages as follows : ( 1 ) the open - air feeder terminal units ( ftu ) are interfered by strong electromagnetic and thunder. besides, the failure of relays and the fault of ftu can also lead to that fault information is interfered and aberrant. ( 2 ) in the process of transmission and commutation, the error in the communication equipment may result in the signals err or lose

然而，現有的scada系統在配電網發生故障時提供給調度員的警報信息有如下局限性： （ 1 ）面向現場的戶外饋線終端ftu運行環境惡劣，承受強的電磁、雷電干擾，並且由於繼電器節點故障、 ftu元器件損壞等因素的存在，使得配電網信息受干擾、畸變的可能性較高； （ 2 ）在信號傳輸及變換過程中，通訊裝置的故障等原因，也可能導致信號出錯甚至丟失； （ 3 ）保護裝置和斷路器本身也有可能誤動或拒動。

Qe1 achieve the whole synchronization by software and hardware. during the course of the initialization of the qe1 system, the chip pm4354 can accomplish the task of synchronization of bit, frame and multiframe after the chip initialization by the software. after pm4354 accomplishes the bit synchronization, qel will read the status registers of the pm4354 to get the status of each el circuit and choose recovered clock of the specified the el circuit as the external timing source of the whole htc - 5200an equipment

Qe1系統在系統初始化時，通過軟體完成對硬體晶元pm4354的初始化工作后，便可利用該晶元完成4路e1的同步（位同步、幀同步和復幀同步） ；在pm4354完成時鐘提取的任務后， qe1通過不斷地訪問pm4354的狀態寄存器，獲得每路e1的狀態信息，在時鐘源的選擇原則下，選擇指定e1線路的恢復時鐘作為整個htc - 5200an節點設備的外部參考時鐘，從而解決了htc 5200an的中繼板卡由e1變為qe時所帶來的網同步時鐘源。

Multi - element metallic cables used in analogue and digital communication and control - sectional specification for unscreened cables characterised up to 250 mhz - work area and patch cord cables

模擬和數字通信及控制中使用的多元件金屬電纜. 250mhz及以下的非鎧裝電纜分規范.工作區域和中繼電纜

Multi - element metallic cables used in analogue and digital communication and control - part 6 - 2 : sectional specification for unscreened cables characterised up to 250 mhz - work area and patch cord cables

用於模擬和數字通信和控制的多元件金屬電纜.第6 - 2部分: 250 mhz及以下的非屏蔽電纜的分規范.工作區域和中繼電纜

Our company specializes in the export of electrical and electronic products like circuit breaker. ac dc contctors. thermal relay. wall switch & socket. energy saving lamp. signal lamps. pushbottons. meters and multitester as well as other electronic comonents and accesseries

公司以經營高低壓成套電器產品進出口業務為主，兼營斷路器、交直流接觸器、繼電器、儀器儀表、按鈕信及號燈等中低器電子元器件。

This article uses cpld technology to improve the hardware integration degree so as to ensure the high system reliability ; it applies digital signal process technology to producing and recognizing large volume ditigal voice signals in switch systems ; it replaces the old - used special voice signal process chips, thus lowers the cost, improves the quality ; it uses high quality common pc 104 units to complete the main processor tasks, which greatly improves the signal processing capability in the digital switch systems, and provides a great convinence for future technology upgrade as well ; in system archtecture, we exploit modular design technique on client ports and repeater ports, which gains more reliability and easy maintenance

本文主要採用了cpld技術提高硬體的集成度以保證系統的高可靠性：用數字信號處理技術完成交換系統中大量的語音信號的產生和識別，代替以前的專用語音信號處理晶元，降低了成本，提高了性能：用高性能的通用pc104單元完成主處理機的工作，大大提高了數字交換系統的信息處理能力，並為今後的技術升級提供了方便：在系統結構上對用戶埠和中繼埠採用模塊化設計，性能可靠，維護方便。

Committed to the corporate mission of customer first and foremost, first ferry has invested considerable sums to upgrade services and implemented a series of cost - saving and revenue - generating measures since the service commencement in 2000. these include the investment of 200 million to acquire eight brand new catamarans and upgrading the main engines of vessels to enhance service reliability. as a result, first ferry has always been renowned for its reliability to provide exemplary service to facilitate passenger mobility in festive occasions ; in the years to come, first ferry will continue its efforts to maintain safe and high quality ferry services for commuters

新渡輪以服務優質乘客第一為經營宗旨，自2000年投入服務以來，一直投放資源提升服務質素，當中包括斥資2億元購置八艘全新高速雙體船，及更新渡輪主機，加強服務的穩定性，在過往重大慶典的日子更能突顯新渡輪在應付疏導大人流的卓越表現，亦深得政府和社會人仕的信賴，新渡輪今後會繼續秉承宗旨，為大眾提供安全優質的渡輪服務。

China will make a real big leap forward in telecommunications. from the perspective of the mobile terminal market, the country will keep a two - digit growth in the coming 3 - 5 years. the year 2005 will witness sales of 120 billion yuan for mobile terminals

從中國移動通信終端市場的發展來看，據有關專家分析，今後3 ~ 5年將繼續保持兩位數的增長，到2005年，移動終端的銷售額可達到1200億元，這是一個巨大的市場。

This paper fist introduces gps gis communication method between mobile unit and monitoring center and the method of system integration. further it expresses the global structure, functions working principle and system specialties based on general broadcasting station. at last it explicitly describes the monitoring center " s software

本文首先闡述了全球定位系統（ gps ） 、地理信息系統（ gis ） 、移動單元與監控中心之間的通訊方式和系統集成的方法，繼而介紹了在常規電臺通訊方式下系統的總體結構、功能、工作原理和系統特點，最後重點對監控中心的軟體進行了詳細的說明。

The master communicates with the relay unit by serial communication interface and the relay unit communicates with module unit by wireless communication network

上位機和中繼單元之間採用串列口通信，中繼單元和模塊單元之間採用無線網路進行通信。

Multi - element metallic cables used in analogue and digital communication and control - sectional specification for screened cables characterized up to 250 mhz - work area and patch cord cables

模擬和數字通信及控制中使用的多元件金屬電纜. 250mhz及以下的鎧裝電纜分規范.工作區域和中繼電纜

The principle and control method of the wireless communication network were introduced detailedly. and the communication area was computed too. and then the software system which includes master, relay unit and module unit was designed on the basis of hardware

以pic16f877a單片機為核心設計了中繼單元和模塊單元控制電路;詳細分析了無線通信模塊的工作原理、控制方式，並計算了無線模塊的通信距離;在硬體的基礎上設計了包括上位機、中繼單元和模塊單元在內的軟體系統。