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System and method for sending pictures based on Beidou short messages

A Beidou short message and picture technology, applied in transmission systems, digital transmission systems, radio transmission systems, etc., can solve problems such as the inability to meet the needs of picture transmission, achieve great industrial promotion value, improve transmission efficiency, and reduce manufacturing costs. and the effect of complexity

Inactive Publication Date: 2020-04-10
北京天海达科技有限公司
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  • Application Information

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Problems solved by technology

The traditional method of using Beidou short messages obviously cannot meet the transmission requirements of pictures

Method used

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  • System and method for sending pictures based on Beidou short messages
  • System and method for sending pictures based on Beidou short messages
  • System and method for sending pictures based on Beidou short messages

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Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0042] One aspect of the present invention provides a system for sending pictures based on Beidou short messages, combined with figure 1 The system includes a picture processing module and a Beidou short message multi-card user terminal;

[0043] Described picture processing module divides the picture to be transmitted into several data packets, and each data packet satisfies the limitation of the Beidou user card sendin...

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Abstract

The invention discloses a system and a method for sending pictures based on Beidou short messages. The system comprises a picture processing module and a Beidou short message multi-card user terminal.When the Beidou short message multi-card user terminal sends a picture, sub-packaging is carried out firstly, and sub-packaging data of the picture is sent to the server side in a circulating mode through the Beidou short message multi-card user terminal. And the server feeds back the frame number of the lost packet according to the receiving condition, and the Beidou short message multi-card terminal resends the lost sub-packet data until the server receives the picture data. And the server packs the picture data, thereby restoring the picture data into an original picture file. According tothe invention, the problem of picture transmission by using a Beidou short message satellite link is solved, the method is used as a beneficial supplement for mobile wireless communication, a supplement means for picture transmission is provided, and application scenes are enriched. In consideration of the unreliability of Beidou short message transmission, a specific data structure and algorithmare combined to realize reliable and efficient transmission of pictures.

Description

technical field [0001] The invention relates to the technical field of Beidou terminal for picture transmission, and in particular to a system and method for sending pictures based on Beidou short messages. Background technique [0002] The Beidou-2 satellite navigation system (BD2, Beidou-2) is a global satellite navigation system independently developed by China. As of the end of 2012, there are currently 14 satellites serving the Asia-Pacific region, including 5 GEO satellites, 5 IGSO satellites and 4 MEO satellites. Among them, the five GEO satellites of Beidou-2 provide short message communication functions, and other satellites provide navigation and positioning functions. 5 GEO satellites, each of which contains 2 independent beam signals, that is, a total of 10 independent beam signals provide short message communication services. [0003] The Beidou-3 project officially started construction in 2009. The space segment of the Beidou-3 satellite navigation system con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/14H04W4/18H04W28/06H04L1/00H04B7/185
CPCH04B7/1858H04L1/0083H04W4/14H04W4/18H04W28/065
Inventor 汪兵
Owner 北京天海达科技有限公司
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