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CCTV(闭路电视的英文缩写)系统主要由摄像机、信号传送设备和监视器组成。早期的CCTV系统使用一部黑白电视摄像机,通过多芯电缆传送并用一部监视器显示图像。在科技发达的国家,CCTV在家庭中已占主导地位。近年来,家用视屏系统的不断发展,新技术、新产品的不断出现,为CCTV的发展提供了极为有利的条件。CCTV用户近年来的要求主要集中在图像质量、图像分解力及摄像器件的灵敏度等指标上,从而促使CCTV的发展出现了一些新的动向,主要表现在以下三个方面:1.采用电荷耦合器件;2.转向彩色CCTV;
CCTV (Closed Circuit Television English abbreviation) system is mainly composed of cameras, signal transmission equipment and monitors. Early CCTV systems used a black-and-white TV camera to transmit images over a multi-core cable and use a monitor to display images. In technologically advanced countries, CCTV has dominated the family. In recent years, the continuous development of the home video screen system and the constant emergence of new technologies and new products have provided extremely favorable conditions for the development of CCTV. The requirements of CCTV users in recent years have mainly focused on indicators such as image quality, image resolution, and the sensitivity of the imaging device, thereby prompting some new trends in the development of CCTV, mainly in the following three aspects: 1. Using charge-coupled devices 2. Turn to color CCTV;