Wireless digital image transmission protocol method

A digital image and transmission protocol technology, applied in the network field, can solve the problems of delay and low resolution, and achieve the effect of reducing the amount of video frame data, reducing the burden, and reducing the burden

Inactive Publication Date: 2018-06-15
深圳市句点志能电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a present invention is: solve the time delay and the low resolution defect of general cheap wireless image transmission (picture transmission) occasion, provide a kind of lowest in the ISO protocol stack in the 802.11 that is applicable to picture transmission A new protocol with two layers

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  • Wireless digital image transmission protocol method

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Embodiment

[0027] The wireless digital image transmission protocol method in the present invention defines the protocols of the data link layer and the physical layer in the 802.11 protocol, wherein the data link layer includes LLC sublayer and MAC sublayer, and the physical layer includes PLCP and PMD two layers , in order to ensure stable wireless communication, when the protocol enters each layer, more information such as control, management, header and tail checksum, and encryption will be added.

[0028] The network retransmission mechanism is formulated on the third layer of nerwork to meet the video fluency requirements, and the video data format protocol is formulated on the first and second layers.

[0029] The 802.11 protocol mainly defines the two-layer protocol of the data link layer and the physical layer. In order to ensure stable wireless communication, when the protocol enters each layer, some control, management, head and tail and verification and encryption will be added...

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Abstract

The invention relates to a wireless digital image transmission protocol method. Protocols of A data link layer and a physical layer are defined in the 802.11 protocol, wherein the data link layer comprises LLC sublayer and MAC sublayer, the physical layer comprises PLCP and PMD layers; for guaranteeing the stable communication of the wireless, the control, management, and head and tail part and check and encryption and more information can be added when the protocol enters each layer. Through above protocol improvement, a 5dB omni-directional transceiving antenna is equipped in the transmission power of 200mW, and the wireless module of the 5G frequency point 802.11a protocol comparison on-the-spot survey is used as the example (the testing environment is Longganglongcheng Park, and the DJI PHANTOM3 unmanned aerial vehicle), and the effect is clear at a glance. Through the method disclosed by the invention, the video frame data size can be lowered, and the retransmission frequency canbe greatly reduced; the burden of the limited wireless bandwidth is reduced, the video transmission distance is longer, the image delay is avoided, and the definition is greatly improved.

Description

technical field [0001] The invention relates to a wireless digital image transmission protocol method, which belongs to the field of network technology. Background technique [0002] The wireless transmission of high-definition digital images currently mainly uses the following transmission methods: [0003] (1) Satellite communication: It uses satellites as relays for transmission, and cooperates with ground transmitting and receiving stations. It is characterized by stable operation and ultra-long transmission distance. However, the ultra-high cost and complex hardware platform are beyond the reach of the consumer field. [0004] (2) Professional image transmission: It mainly uses digital mobile TV transmission network for transmission, such as COFDM, which has many advantages, such as the transmission of large data volume images under low bandwidth, and high anti-interference, etc., but the disadvantages are also obvious. Its large peak power and self-adaptive modulatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08
CPCH04L69/26H04L69/323H04L69/324H04L69/325
Inventor 樊金根
Owner 深圳市句点志能电子有限公司
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