數碼壓模 的英文怎麼說
中文拼音 [shǔmǎyāmó]
數碼壓模
英文
number stamp set-
This paper discusses the designing and making of the dynamic testing systems of engine electronic control system. base on the construction and operation principle of santana 2000gsi m3. 8. 2 engine electronic control systems, design and manufacture led circuit of dynamic testing and fault imitating electronic control unit. on the inspect board, design and equip with motronic 3. 8. 2 ecu i / o measuring joints, design and set up obd - ii diagnostic communication link, design and install fuel pressure inspecting meter. depend on the obd - ii diagnostic communication link and ecu i / o measuring joints, this dynamic testing system can inspect engine electronic fuel injection system, distributorless ignition system, idle speed control system and evaporative emission control system, and can inspect m3. 8. 2 sensors, ecu and actuators, and can interrogate fault memory and erase fault memory ; and can analyse data stream ; and can carry out fault imitating. besides, this paper analyses sensors and actuators typical fault w aves
2電控單元電路連接器設計製成輸入輸出電子控制檢測端子,並在檢測面板上布置了obd -診斷插座和燃油壓力表。使該動態測試系統能實現對電噴發動機的燃油系統、直接點火系統、怠速控制系統和燃油蒸氣排放控制系統的動態檢測;並通過obd -診斷座、 ecu輸入輸出檢測端子和故障模擬處理單元實現對電噴發動機電控系統各傳感器、電控單元、執行器進行故障碼讀取與清除;動態數據讀取和波形測試和故障模擬等。此外,本論文還分析了傳感器和執行器典型故障波形。Various sensors that are besotted in the 3d world through vrml can effectively sense all kinds of operators " behaviors ; java byte codes that are besotted in the interface between vrml and java through the " script " node can finish difficult tasks. so the alteration can be concluded as follows : operators touch parts of the shelf, and the java byte codes execute the relative function, finally results are reported to the operators. ( 3 ) through detailed studying the working function of the throttling experiment, i constructed a mathematical model of the experiment and simulated the model
Vrml可以在瀏覽器環境中為3d實驗臺模型添加多種感知器,能夠良好地感知操作者的各種意圖;在vrml和java技術的介面中,可以利用java程序代碼來完成一些復雜的任務,從而實現了實驗的交互:實驗者感知實驗臺的各種儀器,程序完成相應的任務,然後返回相應的結果; 3 )仔細研究了節流調速實驗的液壓迴路原理,對實驗過程建立了相關數學模型,進行模擬分析並獲得了模擬結果,實現了基於模型驅動方法的虛擬實驗; 4 )實驗臺遠程訪問的實現。In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab
針對無連接和面向連接的各種復雜網路環境下,通信頻帶資源緊張,音頻傳輸帶寬有限且復雜多變,而各種音頻數據又日益增多的局面,本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義,在前人不斷工作的基礎上,提出了一種優化小波包變換編碼方案用於音頻數據的壓縮演算法,兼考慮了編碼效率、多碼率和壓縮時延多個方面,並在matlab環境下做了模擬實驗,對各種音頻信號及多種小波函數做了模擬結果比較,實驗結果證明該演算法可以在一定計算復雜度下可以很好地改進壓縮效果,達到多碼率下實現實時編解碼的過程,在高速dsp晶元等硬體設備支持下,可以有效應用於實際復雜多變信源編碼。With the established rf front - end system simulation platform, adding the digital modulated baseband signal, this paper simulated the multifold digital modulated signal ’ s transmission, such as 2ask, qpsk, and 16qam. then researches of power compression and phase noise of local oscillation influence the bit error ratio for different modulated system. the designing is satisfied multifold functions request with the high - powered and integrated broadband rf front - end
隨后在建立的寬帶射頻前端通用模擬平臺上,加入基帶數字調制信號,對多種數字調制格式的信號在該通用平臺上的傳輸作了研究,模擬了2ask 、 qpsk和16qam等調制格式信號的發射與接收,研究了功率壓縮和本振相位噪聲對不同調制的誤碼率影響,實現了滿足多種功能要求的寬帶高性能綜合射頻前端的設計。Firstly, four alternative mode was introduces for h. 263 data compress arithmetic : the mode of nonrestrictive sportive vector, syntax - based arithmetic coding mode, the mode of supernal forecast, and the mode of pb frame
首先詳細介紹了數據壓縮演算法h . 263以及h . 263演算法的四個可選模式:非限制運動矢量模式;基於語法的算術編碼模式;高級預測模式; pb幀模式。The focus is placed on the investigation of the standard of the encoding algorithm for mpeg audio layer iii, and the analysis of the major four modules in the compression algorithm, including encoding of subband filter bank, psychoacoustics model, quantification and huffman coding, frame packing
重點研究了mpeg音頻第層編碼的演算法標準。詳細分析了壓縮演算法中的四個主要功能模塊:子帶濾波器組編碼,心理聲學模型,比特流量化與霍夫曼編碼,幀數據流格式化。Traditional coding algorithms are based on simple n - gram models. those distant constraints and some redundancies in natural language, such as word order redundancies, semantic redundancies and syntactic redundancies, are neglected in the n - gram models. in order to find and reduce those redundancies, we need more intelligent algorithms based on more effective models
通用無損數據編碼是數據壓縮領域的一個重要的分支,現有的無損數據編碼方法大多是基於n - gram模型的, n - gram模型忽略了自然語言中的遠距離約束和諸如詞序冗餘、語義冗餘、句法冗餘等冗餘,為了找出並減少這些冗餘,需要更有效的語言模型和更智能的演算法。In this article, based on theory of the rcm technology and exception - tree, the equipment - management programmer and the faulty category in dlpec ( dalian petro - chemistry corporation ) are discussed in details, and the equipment - management patterns for the enterprise are brought forward. for all kinds of equipments, some measurements on the maintaining and governing are established ; moreover, the system function mode structure is also schemed out, which responses the working situation of equipment in the enterprise in detail and is composed of equipment technology document - management, equipment document - management, equipment integrating - management, equipment maintaining - plan management, equipment stat. analysis management, integrating - query system etc ; at the same time, the whole system codes are devised, which include equipment category code, engineering planning sort code, spare part sort code, testing report catalogue code of pressure vessel pile, equipment stat
本文以大連石化公司的設備管理程序和設備種類為研究對象,應用rcm的技術和故障樹原理,提出了具體的適合於該企業的設備管理模式;針對各種不同類型的設備,制訂出相應的維修管理對策;並運用信息系統分析與設計方法,設計出了比較詳細的、能真實反應企業設備工作狀態的系統功能模型結構,包括:設備技術文檔管理、設備檔案管理、設備綜合管理、設備維修計劃管理、設備統計分析管理、綜合查詢系統等;同時,設計出了比較完整的系統代碼,主要包括:設備類別編碼、工程計劃分類編碼、備品備件類別編碼、壓力容器管道檢驗報告目錄編碼、設備統計類別編碼等;另外,對數據庫設計、輸入輸出設計、系統的實施與測試等提出了比較具體的方案。The data acquisition and data flow for various sensor carriers are analyzed systematically, and the calculation models are put forward. the model of quantification of wall - loss defects for in - line inspection with ultrasonic pigs has been established. and inspection data can be pretreated with this model, compressed with dpcm technique and treatd by dsp instruments
建立了檢測頭數據採集量及數據處理速率模型,首次建立了管道壁缺陷液浸超聲檢測的量化分析模型;提出採用該模型進行數據預處理后,採用差分脈碼調制技術進行數據壓縮,採用dsp器件提高數據處理速率。We have many industry automize instruments such as temperature transmitter ( integrate temperature transmitter module ( double temperature transmitter module ), integrate temperature transmitter, track isolation temperature transmitter, hanging temperature transmitter, pressure transmitter ( expanding silicon pressure transmitter, sapphire pressure transmitter, spraying ( metal slim film ) pressure transmitter, strain pressure transmitter, ceramic resistor, capacitance pressure transmitter, 1151 and 3151 series pressure transmitter, fluid location transmitter module ( specializing for fluid location meter ), collocated electricity meter ( sigle round, double round ), signal isolation ( single round, double round ), transducer ( temperature, pressure ), display head ( showing 100 % scale, lcd fluid crystal, led digital display ), numerical instrument and so on
產品有溫度變送器(一體化溫度變送器模塊(雙支溫變模塊) 、一體化溫度變送器、導軌式隔離溫度變送器、壁掛式溫度變送器、架裝式溫度變送器) 、壓力變送器(擴散硅壓力變送器、藍寶石壓力變送器、濺射式(金屬薄膜)壓力變送器、應變式壓力變送器、陶瓷電阻、電容壓力變送器、 1151 、 3151系列壓力變送器) 、液位變送器模塊(專為液位計廠配套) 、配電器(單迴路、雙迴路) 、信號隔離器(單迴路、雙迴路) 、傳感器(溫度、壓力) 、配變送器的顯示表頭( 100刻度顯示、 lcd液晶顯示、 led數碼顯示) 、數字儀表等工業自動化儀器儀表。Test results show that the modified embedded zerotree coding method is effective for power system malfunction data compression, and that the embedded property is very helpful for improving fault record performance
模擬實驗表明,改進后的嵌入式零樹編碼方法對電力系統故障數據壓縮十分有效,並且其嵌入式的特性提高了故障錄波器的性能。The circuit mainly includes the system power, the system clock, the rs - 485 interface, the key and the led display, the 4 - 20ma conditioning and a / d conversion, the watchdog and the low voltage detection and the external eeprom, the warning circuit
主要包括:電源和時鐘模塊、 rs - 485通信模塊、按鍵和led數碼管顯示模塊、 4 - 20ma調理及a / d轉換模塊、看門狗/低壓檢測模塊和報警模塊等。The sampling data are displayed by 7 - segment leds that are designed in a dependent pcb, the display board has a serial interface which use less pins of mcu. it ' s a efficient way. at last the outputs by calculation and reference of fis control the capacitor - group and voltage adjuster by relay - group, the whole device is divided into three part, the first part is sampling & control board ; the second part is display leds board and the third part is supply & output board
在電壓無功綜合控制器的設計中,考慮到mcu管腳有限且要求顯示的數據較多,使用了較多的spi介面形式的外圍晶元(如cs5460a 、 ezprom ) ,而且將數碼管顯示部分設計為串列數據傳輸模式,這樣其數據線也可以利spi介面的數據線復用,提高了mcu管腳的利用率也保證了功能的實現。The method of fractal image compression transfers a digital into a group of contract iterate function system ( ips ) model. encoding ifs ' s parameters achieves image compression. this method may gain higher compression ratio, as well as decoding rapidly
分形圖象壓縮方法是根據圖象的自相似性,將一幅數字圖象轉化為一組收縮的迭代函數系統模型,通過對迭代函數系統參數編碼達到圖象壓縮的目的。The data compession technology is researched, and the problem is solved which quanties of fault recording data are huge and the sending time is long. the transmission success ratio is boroved greatly. the electrical relation of single phase - earth fault of generator stator windings is ndied in detail, and the process of generator losing magnetism faul is also discussed
利用該標準記錄數據中的冗餘量,進行壓縮是一新思路,對無損壓縮和有損壓縮進行了大量模擬,採用信號源符號1byte的自適應二階算術編碼無損壓縮法,使遠傳數據壓縮率可達72 ,解決了錄波數據遠傳中數據量大、傳送時間長、成功率低的難題。As for traditional sdd - 1 algorithm, this paper tries to improve it in the following aspects : ( 1 ) during data transportation, this paper adopts data compression technology. another encoding model - tag model - is put forward here which is different from existing models
本文試圖從以下方面對這類演算法進行改進: ( 1 )在數據傳輸過程中,引進數據壓縮技術,提出不同於現有的壓縮編碼模式-標記模式,並給出tag演算法的實現。Digital audio broadcasting is a robust form of broadcasting using digital compression technology to deliver audio, text, pictures and data in a binary bit stream
數碼聲音廣播是一種嶄新的廣播模式,利用數碼壓縮技術,把不同類型的電臺節目等,轉化為一系列由二進制數字數元組成的數碼電腦編碼傳送。Digital audio broadcasting ( dab ) is a robust form of broadcasting using digital compression technology to deliver audio, text, pictures and data in a binary bit stream
數碼聲音廣播是一種嶄新的廣播模式,利用數碼壓縮技術,把不同類型的電臺節目等,轉化為一系列由二進制數字(數元)組成的數碼電腦編碼傳送。In the paper, some key techniques which are dealt with in the system implement have been discussed, such as the principle of video encoding and compressing, mpeg compressing standard, the principle of streaming media, realtime transport protocol ( rtf ), real - time transport control protocol ( rtcp ), real time streaming protocol ( rtsp ), the network architecture ; the technique of ethernet and the programming technique of realization of network communication, etc. based on the above key techniques, a simple, valid and inexpensive solution to rebuild existent traditional surveillance system is supplied in this dissertation
本文分析了現有模擬監控系統的優缺點,重點討論了視頻編碼壓縮原理, mpeg壓縮標準,流媒體技術原理,實時傳輸協議rtp ,實時傳輸控制協議rtcp ,實時流協議rtsp ,網路體系結構,以太網技術和網路通信編程技術等系統實現過程中所涉及的關鍵技術。基於上述關鍵技術,本文提出了傳統視頻監控系統的數字化和網路化改造的一種簡單可行且成本低廉的解決方案。The paper gives a project to realize speech communication between teacher and student in network, which is based on speech ' s compression and decompression technology, network communication technology and multithreading technology. the point - to - point full duplex and real time speech communication in network is implemented on lan by using peer to peer model, udp communication technology and simple data - compression method, and programming to the full duplex sound card
以語音壓縮編解碼技術、網路通信技術和多線程技術為主要理論基礎,給出了教員與學員間語音網路通訊的具體實現方案:採用對等模式及udp通信技術和簡捷的數據壓縮技術,對全雙工聲卡編程,在局域網內實現點到點的全雙工的、實時的語音通訊。分享友人