Constant-pressure broadcast system by using a plurality of wireless forwarders for realizing addressable broadcasting

Abstract

The invention provides a constant-pressure broadcast system by using wireless forwarders for realizing remote control. Wires do not need to be arranged on the most popular public broadcasting system; a wireless control signal is transmitted by utilizing a radio transmitter and a plurality of wireless signal forwarders; then an action is received by a terminal controller, thereby realizing the addressing function of the public broadcast.

Description

technical field [0001] The invention relates to the field of public broadcasting, in particular to a constant-voltage broadcasting system that uses multiple wireless relays to realize addressable broadcasting. Background technique [0002] Public broadcasting is generally used in public places such as schools, squares, hospitals, factories, troops, airports, and residential quarters. With the continuous refinement of the use functions, the requirements for the public broadcasting control part are getting higher and higher. For example, the voice and hearing training used by the school every day must be accurate to the class; the public broadcasting of the hospital must also be accurate to each ward; the army needs to make voice announcements for each dormitory, etc. [0003] In order to meet these needs, several major categories of broadcasting systems, such as FM broadcasting, network broadcasting, and addressable broadcasting using 485 and other signals, have been develope...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: 1. The terminal speaker is an integrated active speaker, and the unified power amplification backup system at the front end cannot be used. It cannot be used safely in places with high requirements. For example, the backup system cannot be used during the college entrance examination. 2. Due to the inability to use unified speakers and power amplifiers, there is a problem of high production costs. For example, several FM broadcasts and Internet broadcasts in the existing market can basically be described as sky-high prices; 3. Due to different transmission methods, different It is possible to carry out the transformation of the original broadcasting system. If the expected function is to be achieved, all the original equipment must be eliminated, resulting in a waste of resources; if the 485 signal is used to achieve addressability, there is also the problem of requiring additional control lines

[0004] The invention patent with the application number of 2008101562975, the constant pressure broadcasting system using wireless signals to realize addressing broadcasting has only one wireless transmitter, and it is impossible to control the terminal controller when the control signal cannot be covered

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