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Data grouping method, transmission method and system based on launch vehicle

A data transmission method and carrier rocket technology, applied in transmission systems, signal transmission systems, radio transmission systems, etc., can solve the problem of low utilization rate of telemetry channels, reduce the amount of downloaded data, improve the utilization rate, and save data packets tail effect

Active Publication Date: 2020-09-08
BEIJING XINGJI RONGYAO SPACE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, an embodiment of the present invention provides a data transmission method and device based on a launch vehicle to solve the problem of low utilization of telemetry channels

Method used

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  • Data grouping method, transmission method and system based on launch vehicle
  • Data grouping method, transmission method and system based on launch vehicle
  • Data grouping method, transmission method and system based on launch vehicle

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Embodiment Construction

[0062] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0063] Systems related to data transmission on the launch vehicle include telemetry systems and control systems. During the flight of the launch vehicle, all the parameters on the rocket are transmitted to the ground telemetry station through the wireless link by the data acquisition and transmission equipment in the telemetry system. The telemetry data ...

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Abstract

The invention relates to the technical field of wireless data transmission of carrier rockets, and particularly discloses a data packing method based on a carrier rocket and a transmission method andsystem, wherein the packing method is used in a control system and comprises the steps of obtaining the data at the current moment; extracting data at the previous moment; and packaging the data at the current moment and the data at the previous moment, and adding a data packet header and a data packet tail to obtain a data packet. The real-time data at a certain moment and the delay data at the previous moment form a data packet by the control system, so that the data packet headers and data packet tails are saved, the filling words between packets are reduced due to increase of the lengths of the data packets, the problem of channel waste caused by delayed transmission of control system data by a telemetry system is solved, and accordingly the utilization rate of telemetry channels is increased.

Description

technical field [0001] The invention relates to the technical field of launch vehicle data transmission, in particular to a launch vehicle-based data grouping method, transmission method and system. Background technique [0002] During the flight of various types of launch vehicles, various parameters generated (including various mechanical and thermal environmental parameters, image and video parameters, control system process data, etc.) are transmitted by the telemetry system to the ground telemetry station through a wireless link. And forward it to the measurement and control hall for interpretation by relevant designers to determine the working status of the launch vehicle. [0003] During the flight of the launch vehicle, due to the influence of the attitude of the rocket body, the pointing of the ground telemetry antenna, the exhaust flame of the engine, etc., the telemetry data will be lost or errored, and this event cannot be judged in advance when it will occur, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04L29/06G08C17/02
Inventor 不公告发明人
Owner BEIJING XINGJI RONGYAO SPACE TECH CO LTD
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