
n. [電視] 閉路電視
This paper analyzes reason of measure waveform produce error in decode circuit, put forward experiment means of adopt closed circuit television system transmit signal.
分析了在解碼電路實驗中,測量波形産生誤差的原因,提出了采用有線電視系統傳送信號的實驗方法。
This article discusses the selection of compatible closed circuit television channels in all channel CATV system and explains how to use pocket computer to aid the design.
本文就全頻道CATV系統中如何選擇相容的閉路電視頻道進行了探讨,并介紹了如何用袖珍計算機進行輔助設計問題。
The current closed circuit television monitor system of super highway is independent from the computer toll bar.
現行的高速公路閉路電視監視系統獨立于計算機收費系統之外。
Are closed circuit television cameras (CCTV) used to monitor the shipping dock and container loading areas?
閉路電視系統用于監視集裝箱的上下貨?。
This paper presents a two-way control system for closed circuit television with high performance, low cost, easy maintenance and convenient installation.
本文介紹了一種性能高、價格低、維護性好、便于安裝的閉路電視雙邊控制系統。
The first includes the automation of station security in the use of smart-card access, the installation of automatic barriers and closed circuit television monitoring systems.
第一項計劃是利用“聰明卡”出入、安裝自動閘及閉路電視監察系統,使警署保安設施自動化。
Closed circuit television technology is used in the monitors ystem in the early time.
早期的系統多采用閉路電視技術來實現。
The spacious rooms, equipped with DDD, color TV, closed circuit television, central air-conditioning, broadband plus much more, will make your stay a memorable one.
所有房間均設有國内直播電話、遙控彩電、閉路電視及點播系統、可自控的中央空調系統等,所有房間均可寬帶上網,讓您盡享家的感覺。
This paper stu***s the design and the implementation of closed circuit television system used in urban rail traffic.
主要研究了城市軌道交通系統中的監視系統的設計與實現。
Rooms are equipped with air-conditioning, domestic and international telephone access, satellite closed circuit television, broadband Internet systems.
客房内均設有空調、接通國際國内的電話、衛星閉路電視、寬頻上網系統等。
Closed Circuit Television Camera (CCTV)?
閉路電視攝影機?。
Master the knowledge of entry control of closed circuit television, fire alarm system, and computer system as well as radio communication;
熟練掌握閉路電視、火災報警系統、電腦系統的登錄控制和無線電通信知識;
Closed circuit television supervisory system, security warning;
閉路電視監控系統、防盜報警;
Parking places and 24 hours' security guardians are available. All the buildings are equipped with closed circuit television and video control to grantee your privates and security.
小區有停車位,24小時的保安、公寓的有線電視門禁系統和小區圍牆的紅外監視系統提供安全的保障!
A network digital surveillance system is designed in this paper according to the practical requirement of oil refinery and on the bases of the closed circuit television surveillance system before.
根據煉油廠的實際需求,設計出一套適合煉油廠生産現場的網絡數字監控系統。
By the end of 1997, 308 signalised junctions on Hong Kong Island were under the ATC system and 40 closed circuit television (CCTV) cameras were in use for traffic surveillance.
年底時,港島區有308個路口由區域交通控制系統控制,并有40部閉路 電視攝影機,用以監察交通情況。
The principle for constructing closed-circuit television monitoring system is overall planning, integral consideration, optimized design and full use of existing resources.
閉路電視監視系統構建按照統籌規劃、總體考慮、優化設計、充分利用既有資源的原則。
IDD phones in bars and restaurants; closed-circuit television and mini bar. 24-hour room service provides you with comfortable and neat environment for rest.
酒吧和餐廳内國際直播電話;閉路電視及迷你冰箱一應俱全。24小時的客房服務為您提供整潔舒適的休息環境。
Analogue supervisory system based on closed-circuit television has been developed very quickly, but the newly emerging digital video supervisory system seems to have more advantages.
基于閉路電視的模拟監控系統已經發展得非常成熟,但當前興起的數字視頻監控系統與之相比,有許多優點。
n.|wired television;[電視]閉路電視
閉路電視(Closed-Circuit Television,簡稱CCTV)是一種通過有線或無線專用通信鍊路傳輸視頻信號的電子監控系統,其核心特征是信號僅在封閉網絡内傳播,而非向公共廣播開放。該系統廣泛應用于安防、工業監測和交通管理等領域,其技術原理和标準化應用得到國際權威機構認可。
1. 系統組成與技術原理
閉路電視系統由攝像機、傳輸介質(如光纖或同軸電纜)、顯示設備(監視器)和存儲設備構成。攝像機将光學信號轉換為電信號,通過低延遲的傳輸通道實時發送至終端,并支持本地或雲端存儲。國際電工委員會(IEC)在标準IEC 62676中明确了視頻監控系統的性能參數與測試方法。
2. 核心應用場景
根據中國公共安全行業标準GB/T 28181,閉路電視被納入城市治安防控體系,用于重點區域實時監控與事件回溯。工業領域則依據美國電氣電子工程師學會(IEEE)發布的《工業視頻監控技術指南》,将其應用于高危環境遠程巡檢。
3. 與廣播電視的差異化特征
閉路電視采用點對點傳輸架構,通過物理隔離或加密協議保障數據安全性,此特性在《安全技術與管理》期刊的多篇研究成果中均有實證分析。相較之下,廣播電視依賴開放電磁波傳輸且内容無定向性。
“Closed circuit television”(縮寫為CCTV)的中文譯名為“閉路電視”,指一種通過有線連接或點對點無線傳輸的視頻監控系統。其核心特征是信號僅在特定設備上傳輸,不向公共頻道開放。以下是詳細解析:
1. 基本定義
與廣播電視不同,閉路電視的信號傳輸範圍受控,僅限授權設備(如監控屏幕、錄像機)接收。這種封閉性使其廣泛應用于安全監控領域。
2. 核心組成
3. 主要應用場景
4. 技術演進
早期系統依賴模拟信號,2000年後數字化普及,支持遠程訪問、人臉識别、行為分析等智能功能。部分系統已整合人工智能算法,實現異常行為自動報警。
5. 争議與隱私考量
盡管能有效降低犯罪率,但密集部署可能引發隱私權争議。歐盟《通用數據保護條例》(GDPR)等法規要求使用方需明确告知監控區域。
當前閉路電視系統正向雲存儲、4K/8K超清、多傳感器融合方向發展,同時邊緣計算技術降低了數據處理延遲。如需了解具體品牌或安裝标準,建議參考行業白皮書或專業安防指南。
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