Beidou short message transmission and underwater navigation data compression method and navigation control MCU

A Beidou short message and data compression technology, applied in program control, transmission system, computer control, etc., can solve the problems of poor stability and small amount of communication data, and achieve the effect of improving the success rate

Active Publication Date: 2022-07-26
750 TEST SITE OF CHINA SHIPBUILDING IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of small data volume and poor stability of Beidou short message communication in the prior art, and design a method for Beidou short message transmission and underwater navigation data compression and navigation control MCU

Method used

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  • Beidou short message transmission and underwater navigation data compression method and navigation control MCU
  • Beidou short message transmission and underwater navigation data compression method and navigation control MCU

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Embodiment 1

[0037] like figure 1 As shown in the figure, in the existing underwater vehicle with Beidou antenna, a Beidou module capable of configuring two Beidou cards is used to connect with the existing antenna, and at the same time, connect with the main control MCU through the RS232 serial port, and use a set of antenna and control circuit, forming a system similar to "dual card dual standby", using a set of antennas and control circuits to form a dual card dual standby system for star lock positioning and reporting navigation information. In the dual-card dual-standby system, one card is responsible for star-locking positioning and reporting the positioning information through short messages, and the other card is responsible for reporting the compressed navigation information; after star-locking and positioning, the two cards alternate to the shore base Device sends information. In the navigation control MCU, a data compression algorithm program is implanted, and the program flow ...

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Abstract

The invention belongs to the technical field of Beidou positioning and communication technology application and the navigation and positioning of underwater vehicles and short message communication, in particular to a Beidou short message transmission and underwater navigation data compression method. It includes the following steps: compressing the navigation data into a short message through the navigation control MCU; then, the Beidou module with dual-card communication, after judging the RD positioning, alternately sends the positioning information and the navigation data to the outside; then the shore-based equipment receives the positioning information Combined with the navigation data, decompress it; finally, according to the decompressed data and the preset route information, the underwater navigation of the vehicle is reviewed. Beneficial effect: By compressing the navigation data by this method, under the condition of the existing air vehicle, the information capacity of a short Beidou message can be used to record the navigation status information of the whole voyage. The adoption of dual-card dual-standby system improves the success rate and integrity of transmission, and ensures that shore-based equipment can receive communication information.

Description

technical field [0001] The invention belongs to the technical field of Beidou positioning and communication technology application and underwater vehicle navigation and positioning and short message communication, in particular to a Beidou short message transmission and underwater navigation data compression method and a navigation control MCU. Background technique [0002] With the completion of the Beidou communication satellite network, Beidou communication will be widely used in military and civilian products. At present, the short message communication frequency of civilian Beidou cards is 60 seconds, and the length of communication data is about 78 bytes. After the voyage, the amount of voyage data recorded in the internal test is huge. If all of them are sent through Beidou short messages, several short messages need to be sent, resulting in too long data transmission time. If a frame of data is lost in the middle, it will lead to navigation. The information analysis ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042G01S19/32G01S19/42H04W4/14H04B7/185
CPCG05B19/0423G01S19/32G01S19/421H04W4/14H04B7/185G05B2219/24215
Inventor 李蹬珺
Owner 750 TEST SITE OF CHINA SHIPBUILDING IND CORP
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