Digital Broadcast Master Control System Design And Implementation

With the rapid development of broadcast technology, digital master control, network control center, a radio station broadcasting a trend in the development stage. The total control system is the hub of the broadcast, not only separate ways both inside and outside Taiwan, the signal input and output, according to different requirements for receiving, processing, distribution, transmission, scheduling, but also on system monitoring and management of various signals. General control will directly affect the performance of radio broadcast quality and safety should be a safe, advanced, as the fundamental principles of scalability. For a total control, the system design must follow the concept of safety first broadcast, the system should have improved fault handling mechanisms, in the event of problems, can be the first to discover the problem, first find the problem, the first time automatically Emergency issuesThe total number of network control in the project design stage, we have completed at home and abroad through the digital radio compare instance, fully absorb the benefits. In light of the actual situation in Taiwan, taking account of radio technology to the development trend of network design and build a digital audio to the traditional combination of matrix and CAS 1000 total control of the network. The two systems through software interrelated, synchronized switching.CAS 1000 network is based on common Ethernet-based, transport protocol using CobraNet technology, placing the audio in all aspects of the router, as the network transmission nodes, will be produced, the studio, master control room and other fused to build all-digital, all Intelligent network into one of the master control. Function, not only the achievement of the studio, production rooms and audio signals between the transmitter two-way real-time transmission, but also all aspects of station points to achieve the sharing of audio signals and flexible way to deploy; to achieve the status of the signal, the system equipment work status, working status of each route, routers and other equipment for centralized power management and remote monitoring; while achieving a voice message such as intelligent monitoring, surveillance, alarm, automatic fault handling and emergency broadcast functions.This paper introduces the implementation of the project background, and then describes the development of broadcasting history, and then analyze the composition of the master control station and a variety of different modes of development and national master control station; and from digital audio matrix theory describes the principles and CobraNet protocol works, the final details of the system demonstration program, index of test, functional inspection, joint software development and debugging of real and actual construction.Completion of the total control after fully realized the digital, network, system is stable, excellent technical indicators, improve efficiency, reduce the pressure of work on duty, but also improve the level of safety and high quality broadcast. Taiwan has brought me some economic and social benefits.