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有线电视的基本业务就是电视广播业务,但是电视技术正在经历着由模拟转向数字,由常规向高清晰度电视发展的一场技术革命。有线电视HFC网络是加载数字电视频道,实现增值功能的平台。只有这个平台安全、可靠、稳定,网络的增值服务才有基础,打造更高级的HFC网络才有希望。为了更好地适应这场技术革命,就要对原先的网络进行改造。目前我国的有线电视网络正在进行了两方面发展,一是大中城市的数字化改造,另一方面是农村的有线电视网络架设。有线电视网络的规划是运营目标及技术实现的总筹划,是工程设计的总要求。
The basic business of cable television is the television broadcasting business, but television technology is experiencing a technological revolution from analog to digital and from conventional to high-definition television. Cable HFC network is loaded digital TV channels, value-added features to achieve the platform. Only this platform is safe, reliable and stable, the network value-added services have a foundation, build more advanced HFC network hope. In order to better adapt to this technological revolution, we must transform the original network. At present, China’s cable television network is undergoing two developments, one is the digital transformation of large and medium-sized cities, on the other hand, the rural cable television network is erected. The planning of the cable television network is the overall planning of operational goals and technical realization and is the general requirement of engineering design.