Communication system based on regional broadband wireless network

Abstract

The invention relates to a communication system based on a regional broadband wireless network. The system comprises a backpack communication system, a vehicle-mounted communication system, a multi-user communication system and a central station communication system, wherein the backpack communication system, the vehicle-mounted communication system and the multi-user communication system are respectively in wireless connection with the central station communication system, send audio and video signals to the central station communication system, receive the audio and video signals sent by thecentral station communication system, and access each other through the central station communication system. The system has portability, can deploy equipment according to field conditions in field deployment emergency communication, is convenient to install and carry, can be carried on the back or mounted on a vehicle, and can easily configure each acquisition point and control point to flexiblymeet requirements; the wireless communication system is simple in structure and convenient to maintain, when wireless communication breaks down, problems can be checked and repaired only by overhauling the signal source and the receiving equipment, equipment maintenance is convenient, fault diagnosis is simple, and the wireless system can be safer through authorized network access and encrypted registration.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a communication system based on a regional broadband wireless network. Background technique [0002] With the rapid growth of wireless communication and the great advancement of technology, the world has moved towards a fully interconnected networked society. That is, anyone or anything can obtain information and share data at any time and anywhere. Due to the rapid development of wireless network technology, regional broadband wireless access communication systems have been widely used in various fields. The number of regional broadband wireless access communication system equipment has greatly increased. Especially the perfection of the wireless communication system has gradually increased various wireless instruments and control equipment. [0003] However, when such wireless instruments and equipment are used in large quantities, and the wireless network of field equi...

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Problems solved by technology

[0003] However, when this kind of wireless instrument and equipment is widely used, and the wireless network of the field equipment is in an unknown state, the new wireless equipment will cause interference to the existing equipment, or cause interference to the new equipment, and it is easy to cause co-channel interference And adjacent frequency interference, the field device wireless network only supports communication with the connected device, and cannot communicate with other devices, so that it can only communicate with the connected wireless network device, the wireless device coverage is too small, each device It is difficult to have signal coverage between them, and the coverage of the network of the equipment alone is limited. Due to the complex and changeable application environment of wireless technology, such as factories, mines, schools, troops, cities, mountainous areas, etc., there may be trees, Blocked by various obstacles such as cars and humans, in the case of no signal in a special environment, it will eventually lead to abnormal network communication between other network devices and devices in the wireless network, so smooth network communication becomes extremely important

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