Talkback and video data transmitting method based on wireless local area network, and talkback commutator

Abstract

The invention discloses a talkback and video data transmitting method based on a wireless local area network, and a talkback commutator, which are realized by adopting a plurality of wireless local area network user terminals, a plurality of wireless local area network wireless access stations, a wireless local area network switch and a talkback and video management server, can provide the characteristics of high connection speed, strong instantaneity, high voice quality, and absolute forced prior communication in priority level for talkback and video data transmission of the wireless local area network user terminals under the condition of keeping the prior functions of data access and transmission of the wireless local area network on the basis of an equipment network and external line transmission system provided by the existing wireless local area network equipment, and have functions of general calling, group calling and notification. Meanwhile, during needing, the communication connection between the wireless local area network user terminals and public telephone communication network users can be realized, so that demands on talkback and video data transmission of the wireless local area network user terminals are met.

Description

technical field [0001] The invention relates to an intercom and video data transmission method and an intercom adapter based on a wireless local area network, belonging to the technical field of wireless local area networks. Background technique [0002] The existing wireless local area network technology has a strong and flexible data access service function, so the wireless local area network is widely used. In order to meet the actual intercom business needs, the wireless intercom communication signal is also realized on the wireless local area network. Transmission function, in the intercom transmission system realized on the existing wireless local area network technology, the more common one is the WIFI intercom system. The common transmission protocol in LAN transmission is IEEE 802.3. Its common feature is to use carrier sense and collision detection to control the transmission of information in the network. Therefore, in terms of the speed of communication connectio...

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Problems solved by technology

[0002] The existing wireless local area network technology has a strong and flexible data access service function, so the wireless local area network is widely used. In order to meet the actual intercom business needs, the wireless intercom communication signal is also realized on the wireless local area network. Transmission function, in the intercom transmission system realized on the existing wireless local area network technology, the more common one is the WIFI intercom system. The common transmission protocol in LAN transmission is IEEE 802.3. Its common feature is to use carrier sense and collision detection to control the transmission of information in the network. Therefore, in terms of the speed of communication connection, the reliability, real-time and The voice quality cannot be compared with the wireless private network intercom technology, and in terms of user priority applications, it cannot guarantee that high-priority intercom users have absolute priority over low-priority users in mandatory connection communications in terms of access and exchange connections; In practical applications, it is often necessary to build a wireless local area network to meet the requirements of various data access. In the existing wireless local area network environment, due to equipment installation and maintenance management, external line transmission system and investment conditions, it is not convenient to build a dedicated network. Network intercom transmission system, but in the actual production dispatching communication work, it is necessary to have fast communication connection speed, real-time performance and high voice quality, the priority level has absolute mandatory priority communication, and there are all calls, group calls and announcements. The private network intercom transmission system function required by the function, and when necessary, realize the communication connection between the private network intercom user and the public network telephone communication user, but the wireless intercom system realized on the existing wireless local area network technology cannot To meet

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