Broadcasting system of wireless intelligent ad hoc network based on zigbee

Abstract

The invention belongs to the technical field of broadcasting equipment, and discloses a broadcasting system of a wireless intelligent ad hoc network based on zigbee. The system is provided with a communication alarm coordination center that is connected to a PC through a wired or wireless network; the communication alarm coordination center is connected to N outdoor active speakers through a communication protocol, connected to N classroom active speakers through the communication protocol, connected with a mobile phone wirelessly, and connected to a manager's mobile phone via the communication protocol. The invention has the advantages of quick installation, low cost and simple maintenance, can be expanded on a cable broadcasting system without development bottleneck, is capable of realizing node-to-node, node-to-surface, and random selection of broadcasting, and is stable in working performance and strong in scalability. The system simultaneously has the alarm functions such as audiobroadcasting and infrared.

Description

Technical field [0001] The invention belongs to the technical field of broadcasting equipment, and in particular relates to a broadcasting system of a wireless intelligent ad hoc network based on zigbee. Background technique [0002] Currently, the main forms of broadcasting in my country are wired broadcasting and wireless broadcasting. The most intuitive difference is that one needs to be wired, and the other does not need to be wired. The cable broadcasting system has high transmission stability, low failure rate, simple structure, and convenient maintenance. The area selection must be the physical partition of the line, which cannot meet the higher requirements for the control of a single broadcast point; a single line can only transmit a single Program sources cannot achieve real-time single-point transmission of multiple program sources, high integrated wiring cost, long installation period, and difficulty in expansion. Wireless broadcasting mainly includes WiFi public br...

AI Technical Summary

Problems solved by technology

[0010] The existing public broadcasting system has a single function. In addition to public broadcasting, it also needs the cooperation of local broadcasting and wireless broadcasting;

[0011] Cable broadcasting in the market requires wiring. In some places (roads, canals, buildings, etc.), the cost of wiring is high. In the process of expansion and expansion, wiring needs to be done again, and the cost of materials and labor is high;

[0012] For existing wireless broadcasting, it is necessary to use an FM radio transmitter to send audio signals and then be received and played by the receiver, or to use the existing Internet network for data transmission, which is difficult to achieve in places where the network coverage is not available;

[0013] ZigBee's transmission rate is ideally only 250K / s, and the transmission rate of audio signals is not enough to achieve uninterrupted audio transmission

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