機架號碼 的英文怎麼說
中文拼音 [jījiàháomǎ]
機架號碼
英文
bay number-
Digital distribution frame is suitable for the distribution and connection of digital terminal equipment or exchanger, with performance of circuit redeploy, connection and test
數字配線架適用於傳輸碼率為2 - 155mb s以下的數字終端設備或程式控制交換機的數字信號的配線與轉接，具有電路調度轉接和測試等功能。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。Vivitar is well recognized as the top 3 brand in american camera industry. vivitar offers wide range of photographic products, including distinctive premium manual camera, single - use camera, motorized camera, zoom camera, water - proof camera, digital camera, binoculars, monocular for your choice
Vivitar相機及光學產品在全球各地聞名巳久，備有各種型號數碼相機zoom相機aps相機全自動相機防水相機手動相機鏡頭腳架望遠鏡及監察系統等可供選擇。分享友人