The Design Research On The Local Wireless Broadcasting System

The local wireless broadcasting system is an installation of audio broadcast which give priority to territorial transmitting information. Popularly it adopts a fashion of the combination of recorder & sending set and the person specially assigned for a task. Several years later people found the following weak points of this system gradually: first this device can not work automatically without persons on duty; secondly the audio effect is bad because of big noise and weak signals; otherwise the way of transmission is simple and the functions are very few. With the quick development of electronic technology, the installation can not satisfy the modern information transmission requirement. It can not satisfy the synthetic requirement, and its improvement has been made.The article through practice analysizes the local wireless broadcasting system, application of the elements and means of communication technology is being updated, A set of half-automatic broadcasting system controlled by hardware has been designed and assembled; A set of all-automatic broadcasting system controlled by computers has been designed and assembled; A set of emission equipment has been designed; Noise has been lowered in the transmission of audio-frequency so that the audio effect has been raised; new ways of audio-frequency transmission have been developed based on the technology of computer network. On this basis, for the sake of adapting the need of digital alternation and amalgamation, the article puts forword a scheme of digital wireless broadcasting, and the project has been put into practice successfully for digital and network.New local wireless broadcasting system circulate, its function consummate Inc superiority performance and efficiency. The problem is successfully solved with the help of conventional local broadcasting wireless system. It is necessary to have a study about its in optimize operation.