Data transmission encoding and decoding method and system based on Beidou short message

A Beidou short message and data transmission technology, applied in the field of data communication, can solve problems such as lack of coding technical support, and achieve the effect of large transmission volume, high efficiency and simple realization

Inactive Publication Date: 2019-09-27
湖北智途北斗空间信息技术有限公司
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  • Claims
  • Application Information

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Problems solved by technology

However, there is a lack of corresponding coding technical support for the intera

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  • Data transmission encoding and decoding method and system based on Beidou short message
  • Data transmission encoding and decoding method and system based on Beidou short message
  • Data transmission encoding and decoding method and system based on Beidou short message

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Embodiment Construction

[0029] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0030] Please refer to figure 1 , which is a flow chart of the method for implementing data encoding and decoding in the present invention. The present invention constructs a method for encoding and decoding data transmission based on Beidou short messages, including the following steps:

[0031] S1. Define the data length A that can be transmitted at a time according to the Beidou short message civil protocol;

[0032] S2. At the sending end, based on the data length A that can be transmitted once, the data to be transmitted is packaged in a single or multiple times, and the data is transmitted in the form of a single package or a package; the package Consists of several single packages, of which:

[0033] Several si...

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Abstract

The invention discloses a data transmission encoding and decoding method and system based on a Beidou short message. The method comprises the following steps: encoding data by adopting an ASCII code in a manner of an identification code + a function code + original data; sending the final data in an ASCII code form according to the civil protocol requirement of the Beidou short message; when data decoding is carried out, judging a common Beidou short message or short message content conforming to the method through the identification code, if the common Beidou short message or the short message content conforming to the method is the short message content conforming to the method, reading the function code, and parsing corresponding original data according to the function code. According to the method, the transmission of the general Byte array data is realized, the data exceeding the limited length can be segmented and packaged due to the civil protocol limitation requirement, the method has the characteristics of simplicity in realization, large transmission quantity, code stream saving and the like, and the resources of the Beidou short message can be utilized to the maximum extent, so that higher efficiency is obtained in practical application.

Description

technical field [0001] The present invention relates to the field of data communication, and more specifically relates to a method and system for encoding and decoding universal data during data transmission based on Beidou short messages. Background technique [0002] With the improvement of users' awareness of the Beidou satellite navigation system, the short message function of the Beidou system has also become widely known. The key performance of the Beidou short message system in the Wenchuan earthquake, Zhouqu debris flow, Lushan earthquake and other disaster relief processes has greatly promoted its application. [0003] At present, there are several related researches on Beidou short message data transmission in terms of Chinese character encoding compression, which can increase the information capacity of short messages. However, there is a lack of corresponding coding technical support for the interactive protocol data transmission commonly used in the field of in...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04B7/185H03M7/40
CPCH03M7/4012H04B7/18517H04L1/0006
Inventor 肖泽云何祥伟于海波周晋张学峰
Owner 湖北智途北斗空间信息技术有限公司
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