Wireless paging and broadcasting workstation for schoolmaster

Abstract

The invention relates to a wireless paging and broadcasting workstation for a schoolmaster. The wireless paging and broadcasting workstation for the schoolmaster comprises a sub-control host, a receiving host, a wireless receiving terminal and a wireless repeater, wherein the receiving host receives signals of the sub-control host and is connected with a power amplifier and a column loudspeaker in a controlling mode, the wireless receiving terminal directly receives radio-frequency signals sent by the sub-control host and controls all zones, and the wireless repeater is used for amplifying signals of the sub-control host and providing the remote transmission function. The wireless paging and broadcasting workstation for the schoolmaster is simple in structure, reliable in control and low in installation and maintenance cost.

Description

technical field [0001] The invention relates to the technical field of broadcasting, in particular to a function strengthening and upgrading device of a campus broadcasting system. Background technique [0002] The existing campus broadcasting system mainly includes constant pressure zone broadcasting system, addressable (constant pressure) broadcasting system and digital IP broadcasting system. [0003] Constant pressure partition broadcasting system, which is currently used in most schools. This system divides the entire campus broadcasting into several partitions according to grade classrooms, sports fields, teaching areas, etc., and each partition has a separate broadcast line to the broadcasting room. The broadcast of each zone is controlled by the equipment in the broadcast room. The problems existing in this broadcasting system are: First, the contradiction between the fixedness and variability of the broadcasting partition. After installation, the broadcast line of...

AI Technical Summary

Problems solved by technology

The problems of this kind of broadcasting system are: first, the contradiction between the fixity and variability of broadcasting partitions

Although this kind of broadcasting system solves the problem that the fixed-voltage partition broadcasting system is difficult to adjust according to grade classrooms, it also has the following defects: first, the equipment cost is high, the addressing host and PC are expensive, and the addressing terminal of each classroom Second, the installation cost is high. To connect each terminal to the broadcasting room with a network cable, a very good quality network cable and a high installation and commissioning fee are required; third, maintenance is troublesome, because the control line ( Network cable) has many nodes, oxidation, rust, and rat bites can easily cause system failures; fourth, the operation requires higher technical requirements and needs special personnel to operate, which is not suitable for students to operate; fifth, the principal must go to the broadcasting room or Entrust a special person to broadcast, but the general school does not have a special person to broadcast

This kind of broadcasting system has comprehensive functions, but the main problems are: first, it needs a LAN platform; second, it is expensive; third, it is troublesome to maintain;

Therefore, this kind of broadcasting system cannot be popularized and promoted, and can only become a luxury for a very small number of schools

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