方盒信號 的英文怎麼說
中文拼音 [fānghéxìnháo]
方盒信號
英文
box signal-
The first key technique : using plain - text cipher and md5 message - digest algorithm to ensure stb and dhcp server ' s certificate and secure the stb and server ' s communications - the second key technique : using hmac algorithm to realize the safe functions - the third key technique : using ipsec to realize safe functions o those three methods " complexity increases in turn and the degree of the security increases as well which depend on the frame of the methods and the complexity of the algorithm. all theose three methods use the unique serial - number or a special slip - window to defend replay attack
主要採用三種安全方案實現：第一種：利用約定的明文密碼驗證機頂盒與dhcp服務器的合法身份， md5驗證信息合法性：第二種：利用hmac演算法驗證機頂盒與服務器身份，信息合法性；第三種：利用ipsec驗證機頂盒與dhcp服務器身份與信息合法性。每一種方案中皆採用包序號唯一法或者滑動窗口法保證重放攻擊。此三種方案復雜度依次增加，安全度依次升高，主要取決于演算法的復雜度與架構的搭建。It consists of two part, the one is hardware : integrating the system of the arc welding robot ' s hardwares and its working principles, separating and extracting the original system ' s control signals, designing the control system openly and its working principles, constructing the structure and principle of the motion card based on dsp, designing the telecontroling teaching box or control panel of touching screen based on usb interface, applying for some software and hardware measures on control system ' s anti - jamming ; the other is software : putting forward the three levels opening software structure model of arc welding, comparing the opening of software structure model between osaca and ours, putting forward the solutions of the pri and communication among the threads of software system ' s modules, using the dll ' s techniques to solve software ' s module design and putting forward the frame codes, bringing forward the path planning software ' s realization by cp + ptp mode, discussing the real time of windows2000 operating system and advancing its solution
具體包括，硬體部分：弧焊機器人硬體整體系統集成及其工作原理，原系統控制信號的分離和提取，控制系統的開放式設計及組成原理，基於dsp的運動控制卡結構和原理，基於usb介面的觸摸屏式遙控示教盒控制面板的設計，系統抗干擾的軟、硬體措施；軟體部分：提出了弧焊機器人的三層開放式軟體結構模型，軟體結構模型與osaca的模型進行開放性比較，給出軟體系統各模塊線程間優先級和通訊的解決方案，使用動態鏈接庫技術實現軟體模塊化設計並給出了框架代碼，給出了cp + ptp方式的軌跡規劃軟體實現過程， windows2000操作系統實時性問題的討論及解決方案。They are voltage to digit data converting circuit board, current to digit data converting circuit board and digit data input / output circuit board. these circuit boards are used to acquire the main running parameter of hev experimental bed and to control the output of alarm message. in order to simplify the wire connection and signal conditioning, three piece of interface circuit boards correspondence to the three data acquisition circuit boards are equipped, and a wire connection box is also designed to contain them
本文監控系統的硬體以一臺工業控制pc機為核心並根據採集信號的性質配置了電壓-數字量轉換板、電流-數字量轉換板及數字量輸出輸出板，對hev運行系統的主要運行參數進行採集並進行報警控制；為方便接線和信號調理，配備了與採集板對應的接線和調理介面板以及接線盒。This paper introduces the conception of dual module stb, analyzes the front end physical layer, and depicts the main blocks in terms of the configuration of front end physical layer, data processing of upstream and downstream in - band and out - of - band signals, and technology and method for the implementation of the modem
摘要介紹了雙模機頂盒的概念，重點分析其前端物理層的實現，主要從前端物理層結構、上下行帶內帶外信號在物理層的數據處理和調制解調過程的實現技術和方法等予以描述。Through using si analyse in the hardware design of a dtv set top box ( stb ), the main contribution of this paper is to give a series of solutions for si problems according to theoretically analyse and real works. advanced measuring systems have also been shown in the paper. with the help of this paper, the stb system of a world famous corporation has successfully get wide using of ddr sdram
本文的主要工作是在針對消費類電子（ consumerelectronics ）領域中的數字電視接收機頂盒進行硬體設計的過程中，引入信號完整性分析的設計方法進行高速數字電路的設計，利用理論分析作為設計指導，通過測量、模擬和實際布板的結果進行驗證，得出一系列針對信號完整性問題的解決方案和設計流程，成功地解決了某世界著名企業的機頂盒系統中ddr存儲器工作頻率無法提高的問題，在新一代的機頂盒產品中廣泛使用ddr存儲器，在很大程度上提高了系統的性能，滿足了市場的需求。Dtzziii - dc - tsh type controller is composed of debugging box and gathering controller box, which communicate by rs485. it is mainly used for less transmission signal losing and even more convenient debugging at the state of long distance signal transmission, biggish losing and debugging isnt convenient
Dtzz - tsh型電梯重量載荷指示控制儀由調試盒與稱重採集控制儀兩部分組成，兩部分通過rs485通訊，主要用於信號傳輸較遠損失較大，以及調試不方便的情況下，實現更小的傳輸信號損失更方便的調試。Controller is composed of debugging box and magnetic induction 485 communication controller box, which communicate by rs485. dtzziii - dc - t type controller is mainly used for less transmission signal losing and even more convenient debugging at the state of long distance signal transmission, biggish losing and debugging isnt convenient
控制儀由調試盒與磁感應485通訊控制儀兩部分組成，兩部分通過rs485通訊，主要用於信號傳輸較遠，損失較大，以及調試不方便的情況下，更小的傳輸信號損失，更方便的調試。Chapter 5 discusses the characteristic and structure of decoding chip - sti5518, studies its signals and program interface functions of smart card. at the end of this chapter, gives the smart card decryption solution of sti5518
第五章，重點研究了目前市場上主流的機頂盒解碼晶元sti5518的結構、特點及其介面信號及函數，並提出了sti5518的智能卡解密方案。分享友人