signal security 中文意思是什麼
signal security
解釋
信號安全-
The systems of century ck security locks and automatic alarm lock security have special features, when the larcener were seen breaking a lock, the setbar of door lock shock, it automatically switches touch alarm, it quickly issued a warning signal, alarm and transmitted to the mainframe, telecommunications company by phone or sent to the terminal, it can be 110 and the security alarm centers, community policing, the residential quarters network security departments, the police realized the linkage
世紀西科防盜鎖具及自動報警防盜鎖具系統在防盜方面有獨到之處，一旦盜竊者有撬門或破壞鎖具，門鎖的鎖栓震動，能自動觸動報警開關，迅速的發出報警信號，並傳送到報警主機上，通過電信公司發送至手機或電話終端；可以與公安110報警中心，社區治安聯防，住宅小區保安部門聯網，實現了聯動報警。 -
The development of fieldbus technology made lonworks field bus outstanding in all kinds of fieldbus. this paper simply introduces some kinds of common using fieldbus and the important position and influence of lonworks fieldbus in all kinds of fieldbus, carefully describes the technology core of lonworks technology, puts great emphasis on the introduction of the development and design of public security node of intelligent district which adopts computer, communication and control technology, carefully designs the interfaces of hardware circuits. the public security node of intelligent adopts 8031 single chip as its main processor to complete the application program of user, which mainly collects, process and control all kinds of field signal, and neuron chip 3150 as its slave processor to communicate with other nodes on field network, which works under parrel slave a mode
現場總線技術的發展使得lonworks技術脫穎而出，本文簡要介紹了常用的幾種現場總線的概況以及lonworks技術在現場總線技術中的地位和影響，對lonworks技術的技術核心：神經元晶元、 lontalk協議、 lonworks收發器、 lonbuilder及nodebuilder進行詳盡的描述；重點介紹了集先進的計算機技術、通信技術、控制技術為一體的智能小區安防節點的開發與研製，對節點硬體電路的各種介面進行了詳盡的設計。本文設計的智能小區安防節點採用單片機8031作為主處理器來完成用戶的應用程序，主要負責對各種現場信號進行採集、處理及控制，工作在并行從a方式下的神經元晶元mc3150作為從處理器，主要完成與現場網路上的各節點及中心控制室之間的通信工作。 -
This article elaborated the code technology in the correspondence application, discussed in the discrete signal code process function, as well as code technology security use and error correction function
摘要本文論述了編碼技術在通信中的應用，討論了離散信號的編碼過程中的作用，以及編碼技術的保密用途和糾錯功能。 -
As a new branch of information security, information hiding technology including digital watermarking and steganography aims to protect intellectual property rights of multimedia contents and to send secret messages under the cover of a carrier signal
信息隱藏是信息安全領域中的一項新興技術，主要有數字水印和數字密寫兩大分支，分別用於多媒體數據的版權保護和隱蔽通信。 -
Digital speech has preponderance over analog speech in reliability, robustness and security during communication. however, digital speech needs more bandwidth than the analog signal. especially with the requirement for communication frequency increasing, it ' s necessary to code speech signal at low rates
但是，數字化后的信號所佔的頻帶大幅增加，特別是在帶寬需求日益增長的今天，這個問題尤為突出，因此語音的低速率編碼（即壓縮編碼）成為迫切的要求。 -
Releasing many of america ' s nuclear secrets was seen as an essential part of this strategy., since it would signal a new global order in which nuclear know - how was suddenly and irreparably devalued and real security would lie in the collective knowledge that nobody was able to push weaponry beyond the known boundaries
公布許多核機密被視為這一戰略基本的一個部分，因為這表明了一個全新的全球格局，在這樣一個格局中，核技術突然間無可挽回地跌價了，真正的安全在於這樣一個集體認識：沒有人可以將武器的研製推到人類知識界限之外。 -
Qjyd3200 cut - type auto lift is the professinal lifting equipment for sallon car ' s maintenance and examining. it has the main characteristic of occupying small area, good security capability & has the feedback signal then descending fo the lift platform. it is also very simple to handle & working credibly. especially for the full hydraulic pressure working system, it is suitable for various situation & unnecessary to collocate the compress - air resource additionally
D3200型剪式汽車舉升機是專供轎車維修、檢測時配置的舉升設備，其主要特點是佔地面積小、安全性能好、升降臺下降時有啟鎖反饋信號、工作可靠、操作簡便，尤其是全液壓工作系統，不需另外配置壓縮空氣源，適合多種場合應用。 -
Pile ng examination of the system based on the latest promulgated by the ministry of public security, " motor vehicle drivers license application and management " ( decree 71 ), the two examination subjects ( zhuangkao ), computer images using real - time detection technology and electronic infrared optical interface detection technology, i combine the companies creating two - dimensional moving object identification and tracking software through acquisition of vehicles running state examination pile pole, the signal line, after computer processing, analysis and judgment, the actual realization of the computer monitor screen on the basis of the examination process real - time simulation, tracking examination candidates track and record car line, is set admission, examination results published combines the real modernization zhuangkao tools
本系統依據公安部最新頒布的《機動車駕駛證申領及管理規定》 （ 71號令）中有關科目二考試（樁考）的規定，採用微機圖象實時檢測處理技術及電子紅外線光界面檢測技術，結合我公司獨創的二維移動物體識別跟蹤軟體，通過採集考試車輛運行狀態、樁桿、庫線等信號，經過微機處理、分析判斷，真正實現了在微機監視屏上根據考試過程實時模擬、跟蹤考生考車軌跡並記錄路線，是集錄取、考試、發表成績為一體的真正的現代化樁考工具。 -
The algorithm have the good one - way property, high sensitivity to initial values and good security due to the intrinsic characteristic of chaotic system and rijndael algorithm. the simulation experiment demonstrates the convenience and good hash performance ; 3 ) a new scheme of digital voice secure communication was proposed based on chaotic modulation without additional synchronization. the modulation sequence generated by chaotic logical mapping was used to encrypt the digital voice signal
混沌系統和rijndael演算法的固有特點使該演算法具有較好的安全性、對初值有高度的敏感性以及較好的單向性能，並且易於實現，是一種有效的單向hash函數； 3 ）研究了一種無需同步的基於混沌調制的數字語音保密通信系統的方案，利用邏輯映射產生混沌調制序列，以該序列作為密碼對數字語音進行加密處理，為了更好的隱匿信號特徵，混沌調制在小波分解的基礎上，對不同的通道使用不同的參數進行，並借鑒混沌掩蓋對信息信號進行了限幅處理，使密文完全隨機化。 -
The main content of the project contains the status of the rfid application research, the principle of the signal process and coding of the rfid application system, the principle and design of the rfid security system, the principle and design of the rfid card reader device, the design and implementation of the embedded ethernet communication module and it ' s key technology, the analysis and the implementation of the eatery rfid application system, the general scheme of the project and the synthesis and the prospect of the research
課題研究的主要內容如下： rfid應用研究現狀，射頻識別應用系統的信號處理及編碼技術，射頻識別應用系統的安全原理及設計，射頻識別應用系統的讀寫設備設計原理及應用開發，嵌入式以太網通信模塊的設計及關鍵技術，食堂射頻信息管理系統應用設計，食堂射頻識別應用系統的總體設計與課題總結與展望。 -
As the level of information signal can be equivalent to that of chaotic signal, the degree of security is strengthened
由於該方法允許較大幅度的信息信號，從而提高了通信的安全性。 -
The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering. the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control
本文提出的定向路由協議ds _ dsr是基於對現有協議dsr的改進下實現的，通過定向鄰節點路由表、定向源路由和定向搜索來完成路由發現與維護。研究發現，定向天線的應用，相比全向天線可明顯提高網路的總的吞吐量，減少通道干擾、多址干擾，提高信干噪比，且由於定向天線的高增益可實現較遠距離、較少跳數的通信，減少了路由發現時間，這樣大大減小了傳輸時延，網路的整體性能得到了不同程度的提高，同時部分地解決安全問題，通過功率控制還可較容易的實現節能的目的。 -
As to the video signal, alarm signal, control signal, are all weak electricity signal, exceedingly easily be subjected to the jam, in case the power supply system does not steady, wave propag ation is greatly, the harmonic content of power source overtops, the veins wave factors are great unduly, and even power source equipment breakdown, outputting abnormal, will be about to affect the video signal image effect, and dependability cuts downs to the security and alarming system. we adopt fast fu lye ' s mutation rule - fft alternatives, by the way of carrying fft alternatives to the local junction circuit, regulated power supply, ups ' s power source, and switch power source, thereby diagnose every degree harmonious wave content of power souse, and abnormal coefficient, compared to the normal working situation. thereby diagnose out the working condition of the regulated power supply, ups ' s power source, and switch power source
如果有供電系統不穩定、波動大，電源的諧波含量過高，紋波系數過大，乃至電源設備損壞、輸出異常等情況出現，將會嚴重影響視頻信號的圖像效果，大大降低防盜系統的穩定性和可靠性，我們採用快速傅利葉變換原理，即fft變換，通過對市電、穩壓電源、 ups電源、開關電源等的電壓信號進行fft變換，從而得出信號中各次諧波的含量及信號畸變系數，並將其與正常工況下的參數進行對比，從而進一步診斷出穩壓電源、 ups電源、開關電源等設備的運行狀況；組成監控系統的設備長期處于工作狀態，往往由於設備散熱條件不好、設備老化故障等原因導致設備表面溫度過高，從而影響設備的正常運行，降低設備的使用壽命。 -
In the course of research we have utilized control technology of the one - chip computer and micro - electronics technique, used the new chip, combined the characteristic of railway signal system. so the achievements of the research have great meaning for raising security, dependability and getting high - efficient of railway transportation
在課題的研究過程中利用了單片機控制技術及微電子技術，使用新的器件，符合了鐵路信號系統的特點，因此研製出的系統對于提高鐵路運輸的安全性、可靠性和高效性將具有極其重大的意義。 -
Speaker recognition is the processing of automatically recognizing which is speaking by using speaker specific information included in speech signal. speaker recognition has broad application foreground in many fields such as electric business and information security
說話人識別技術作為語音信號處理的一個重要組成部分，其巨大的應用前景和廣闊的未知領域正受到越來越多人的重視。 -
The proposed method only needs to nansfer a scalar signal and provides higher security due to the use of hypemhaos
提出的擴頻保密通信方法不僅只需傳遞一個標量信號，而且由於採用了超混沌系統，所設計的擴頻通信系統具有更高的保密性。 -
It has been playing an important role in equipping all kinds of arms and services for campaigns, tactical exercises and emergent actions etc. based on the detailed analysis of the exchange ' s architecture and implementing, this thesis points out some disadvantages of the device, such as too many absolute components, not very high enough reliability and security, very large size and weight, operating and maintaining difficultly. considering low power requirement and man - machine interface optimizing design at the same time, the thesis come up with an integrated design scheme to the previous device based on " mcu + cpld / fpga architecture " : ( 1 ) signal frequency dividing, timing frequency producing, 20 customers " led states controlling are implemented in cpld ; ( 2 ) decoding, latching data and controlling signals are implemented in cpld by bus interface between mcu and cpld ; ( 3 ) chip selecting principles and mcu idle mode design are completed under the consideration of low power requirement ; ( 4 ) operation by chinese lcd menus is adopted in the man - machine interface
本項目以該交換機為研究對象，在詳細分析原設備的系統結構和功能實現方式的基礎上，指出該機型在使用過程中存在技術相對陳舊、分立元件過多、可靠性和保密性不夠、體積大、重量大、維修困難等問題，同時結合系統的低功耗需求和優化人機介面設計，本文提出基於「單片機+ cpld fpga體系結構」的集成化設計方案：在cpld中實現信號音分頻和計時頻率生成電路、 20路用戶led狀態控制電路； cpld與單片機以總線介面方式實現譯碼、數據和控制信號鎖存功能的vhdl設計；基於低功耗設計的器件選型方案和單片機待機模式設計；人機介面的lcd菜單操作方式。 -
The level battery can used for the telecommunication, electric power, ups, meet an emergency the motive, illuminate extensively, the public security system, maritime affairs equipments, ship, warship, the railroad signal and others need the situation that motive provide, suiting to apply particularly in the realms such as start, each kind of motor car or the hybrid motive car etc. of the large machine
水平電池可廣泛用於電信、電力、 ups 、應急動力、照明、保安系統、海事設備、船、軍艦、鐵路信號和其它需要動力提供的場合，尤其適合應用於大型機械的啟動，各類電動車或混合動力車等領域。 -
Belden is a leader in the design, manufacture, and marketing of signal transmission products for data networking and a wide range of specialty electronics markets including entertainment, industrial, security and aerospace applications
百通是設計、生產和銷售信號傳輸產品的領導者，產品主要應用與數據網路以及眾多的專業電子市場，包括娛樂、工業、安全以及航空應用等。 -
In addition, considering traffic security, operational efficiency and people ' s travel habits, the setting of signal phases must satisfy strong constraints, such as maximum and minimum green time, maximum queue length and smooth switch of signal timing parameters
並且，從交通安全、通行效率及人們出行習慣的角度考慮，信號燈相位的設置具有很強的約束，如最短和最長綠燈持續時間、最大排隊長度以及信號燈的配時參數要具有一定的穩定性不能變化太劇烈等等。
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