頻外發訊 的英文怎麼說
中文拼音 [bīnwàifāxùn]
頻外發訊
英文
out-of-memory exception-
As a new interface caters for rapid development of computer peripheral equipment, universal serial bus ( for short usb ) dispels astriction of communication through traditional serial port and parallel port. it is very suitable for real time image data transmission, which requires high speed. this theme describes two - circuit systems, which utilize usb interface to data from a digital image sensor to pc
為了迎合計算機上設的快速發展以及消除計算機外設通過串、並口的通訊的局限性，出現了新的計算機外設介面usb （通用串列總線） ，這種新型介面對于實時的視頻傳輸很適用，本文設計了兩套電腦眼基於ez - usb2131q的usb介面系統。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。It realizes the functions of storing and transferring the information of fire alarm, displaying time, scanning keyboards, the safe maintenance of system and so on. the part of wireless communication is controlled by at89c2051 mcu, mainly realizing transmitting and receiving data between controller and other detectors. the external signals received by a wireless module are transmitted to mcu through shaping circuit, and the signals of mcu are transmitted by a wireless module through tone modulation circuit
人機交互部分以單片機c8051f020為核心，為用戶提供一個良好的操作環境，實現了火災報警信息的存儲及調用、時間的顯示、鍵盤的掃描、系統的安全維護等功能;無線通信部分由單片機at89c2051來控制，主要實現控制器與其它探測裝置之間信號的無線發射和接收，無線通訊模塊接收到的外部信號經過整形電路送入單片機，單片機發出的信號經過音頻調制再由無線通訊模塊發送出去，這樣實現了數據的無線傳輸;本文還從節能的角度出發，兼顧性能的可靠性，提出了一種合理的無線火災報警的信息傳輸模式。Our secretaries will answer the calls on behalf of your company, take the message, transfer the calls to your designated phone and handle the letters parcels of your company. in addition, modern business centre offers company formation service. it also provides unlimited high speed broadband internet connection and other facilities such as conference room
另外，現代商務中心亦提供各項虛擬辦公室組合，由專業秘書為貴公司接聽電話傳達口訊轉駁來電及代收信件郵包等等此外，現代商務中心亦提供成立有限公司服務，並有高速商業寬頻無限上網，與及會議室等完善設施，必定令您業務的發展如虎添翼。According to the test conditions, the double polarity inputting mode is adopted in the circuit of voltage - frequency converting part ; storage batteries are used in the optical emission part of optical fibre isolating and transmitting device, that can guarantee isolation between the main circuit and the testing system ; the 89c51 singlechip is used in the singlechip testing - controlling unit, the peripheral circuits are extended, data are transmitted through the serial port in this part ; the p opular software delphi5. 0 is used in the pc part, the communication between singlechip and pc by serial port, plotting of current wave, regulation of data ; the optical - electrical isolating and triggering are used in the controlling part, this can guarantee the veracity and reliability of breakers triggered, this triggering mode is also used in the triggering of the main closing breaker, the tested breaker and the assistant breaker, the triggering signals are sent out by a singlechip
壓頻轉換部分電路中根據實際情況採用了雙極性輸入方式；光纖隔離傳輸裝置的光發射部分電源採用了蓄電池供電，確保了主迴路與測試迴路的完全隔離；單片機測控部分採用了89c51單片機，擴充了外圍電路，通過串口向pc機傳送數據； pc機與單片機之間的串口通訊、波形繪制、數據管理等都採用了軟體delphi5 . 0編寫。該測試系統中預留了輸出口，可以對合成迴路中的主合閘開關、被試開關、輔助開關進行觸發，信號由單片機發出，控制部分採用了光電耦合隔離觸發的方法。軟體設計主要集中在對電流信號的數據採集、數據處理、數據傳送、人機界面、波形繪制和數據管理，軟體部分又可分為單片機和pc機程序設計兩大部分。The signal collecting system of singlechip collects the signals from generator. the paper introduces the every part of the singlechip. the key component is a 8051cpu, its surrounding circuits include dc power source, simulating signal collecting circuit, digital signal collecting circuit, a / d converting circuit, clock generating circuit, counting frequency circuit, controlling circuit, communicating circuit, and some other circuits
前臺單片機採集系統完成對發電機組多信息量的採集，本文詳細介紹了電路設計，系統的核心器件為8051cpu ，其外圍電路包括電源電路、模擬信號採集電路、 a d轉換電路、數字信號採集電路、時鐘發生電路、測頻電路、控制電路、通訊電路等。Ofta s responsibilities include the assignment of radio frequencies, investigation into interference complaints, licensing private telecommunications services, prosecution of illegal use of telecommunications equipment, and coordination with frequency management authorities outside hong kong to prevent interference between radio services
工作范圍包括指配無線電頻率、調查無線電干擾投訴、簽發私人電訊服務牌照、就電訊器材的非法使用提出檢控，以及與香港以外地區的頻率管理機關進行協調，以防止無線電服務互相干擾。Pcs encompasses cordless phones, cellular mobile phone, paging systems, personal communications networks, wireless office phones and any other wireless telecommunications systems that allow people to place and receive voice / data calls while away from home and office
Pcs包括無繩電話、移動電話、尋呼系統、個人通訊網路、無線辦公電話和所有其他無線電訊系統，可使人們離家或辦公室外出時發送和接收音頻/數據。It can realize the circuitry ' s primary protection as well. by using it ' s high - frequency transmitter together with respective peripheral process equipments, programmable testing signals are added to the transmission channel
該裝置通過高頻發訊機與相應外圍加工設備合成並傳送發端測試信號，于收訊機端接收此信號並分析傳輸通道故障信息。Hong kong special administrative region hksar government and guangdong province signed a frequency coordination agreement which will ensure that radio frequencies in the hksar and guangdong could be used efficiently with minimum mutual interference
該協議書除確保香港特區及廣東省能有效使用無電頻率和減少無電相互干擾外，亦促進雙方在電訊服務方面的發展。Out - of - memory exception
頻外發訊In june 2003, pacific century cyberworks ltd pccw won 13 wireless broadband licences in the uk, allowing it to build its first national overseas network
2003年6月，電訊盈科取得英國發出的13個無線寬頻牌照，得以建立其首個在海外的全國性網路。In june 2003, pacific century cyberworks ltd ( pccw ) won 13 wireless broadband licences in the uk, allowing it to build its first national overseas network
2003年6月，電訊盈科取得英國發出的13個無線寬頻牌照，得以建立其首個在海外的全國性網路。We will also formulate the licensing arrangements of mobile services upon expiry of existing licences for second generation mobile service, taking into account considerations like efficient use of spectrum and consumer service
此外，第二代流動通訊服務牌照的有效期即將屆滿，我們會考慮有效使用頻譜及保障消費者利益等因素，制訂其後的發牌政策。Because the traditional terminal equipment of video communication is a thoroughly professional equipment, it is hard to use and maintain and has high cost in repairing, so it is very hard to popularize in public ; however, it is in the moment of trying and exploring to develop the cheap and convenient desktop video meeting system which bases on multimedia pc in domestic and overseas, which has many problem to be settled
由於傳統的視訊終端設備專業性強，使用和維護不便，維修成本高，難以在公眾用戶群中普及：而國內外基於多媒體pc的廉價、方便的桌面視頻會議系統開發還處于嘗試和應用模式的探索階段，有許多問題尚待解決。分享友人