Method and device for wireless audio and video data transmission

Abstract

The invention discloses a method and device for wireless audio and video data transmission. The method comprises the following steps: a microprocessor of first electronic equipment obtains original video data acquired by a video acquisition unit and original audio data acquired by an audio acquisition unit; the original video data and the original audio data are subjected to compression and coding so as to form at least one original audio and video data block; CRC (Cyclical Redundancy Check) codes are added to the original audio and video data block, and scrambling is carried out so as to form audio and video data blocks to be framed; and after all data frames to be sent are subjected to framing processing, the audio and video data blocks to be framed of the data frames to be sent are sent to a wireless data transmission chip according to a data packet format specified in a frame structure which is provided with a transmission time interval between video sub-frames and audio sub-frames, and corresponding radio-frequency signals output by the wireless data transmission chip are sent through an antenna. According to the method and the device, the two-way-interaction wireless audio and video data transmission is realized without relying on the support of a 3G (3rd Generation) network.

Description

technical field [0001] The invention relates to the technical field of wireless transmission, in particular to a wireless audio and video data transmission method and device. Background technique [0002] Traditional wireless transmission equipment such as walkie-talkies, vehicle-mounted radios, and repeaters generally adopt a narrow-band analog transmission system, and because the narrow-band bandwidth is only tens of KHz, traditional wireless transmission equipment can only transmit FM voice; at the same time, due to the analog system itself The reason is that there are disadvantages such as poor voice quality, difficulty in data transmission, and inflexible networking. Therefore, the current wireless transmission equipment usually adopts a digital system, which solves the shortcomings of wireless data transmission caused by the analog system itself. [0003] However, as people's demands continue to increase, the demand for wireless transmission devices with two-way inter...

AI Technical Summary

Problems solved by technology

However, existing wireless transmission devices with two-way interactive audio and video data transmission functions generally rely on the support of 3G networks, so they have certain limitations in the use of network environments.

For example: in the wild without 3G network or in some emergency situations, wireless transmission equipment relying on 3G network support will not be able to achieve wireless audio and video data transmission

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