Adaptive dynamic telemetering packet scheduling method

A scheduling method and telemetry packet technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as many restrictions, scheduling packet scheduling does not have dynamic adaptive capabilities, and cannot meet the needs of rapid telemetry downloads. adaptable effect

Active Publication Date: 2016-03-30
SHANGHAI SATELLITE ENG INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of telemetry frame table layout is more complicated and has many restrictions. The scheduling packet scheduling does not have the ability of dynamic self-adaptation, and cannot meet the requirements of fast downloading of important telemetry in non-preset mode.

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  • Adaptive dynamic telemetering packet scheduling method
  • Adaptive dynamic telemetering packet scheduling method

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0018] Such as figure 1 As shown, the embodiment of the present invention provides an adaptive dynamic telemetry packet scheduling method, including the following steps:

[0019] S1. At the beginning of each cycle, add 1 to the count value of the packet generation time of all telemetry packets whose "downlink quasi-prohibited state" is "allowed";

[0020] S2. Write the remaining part of the telemetry packet that failed to be written into the frame data field in the previous cycle into the current...

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Abstract

The invention discloses an adaptive dynamic telemetering packet scheduling method. The method comprises the following steps of writing remaining telemetering packets failing to be written in a frame data domain in the last period in a current frame data domain; ranking all telemetering packets in an ascending order of periods; traversing all the telemetering packets, and determining a count value of packet generation time; determining whether it is time to transmit each packet in a sequence of ranked packets in each period; and filling the frame data domain with organized telemetering packets, and waiting for the next clock period to fill the remaining telemetering packets failing to write in the frame data domain completely. The adaptive dynamic telemetering packet scheduling method is realized through automatic replacement of a telemetering packet scheduling table or data injection adjustment of telemetering table parameters and a telemetering packet scheduling algorithm, has high universality and adaptation, and has a positive role on ground test, on-orbit experiment, troubleshooting and so on.

Description

technical field [0001] The invention relates to the field of dynamic scheduling of telemetry packets, in particular to an adaptive dynamic telemetry packet scheduling method. Background technique [0002] The satellite sub-package telemetry scheme mainly uses the telemetry frame table to schedule the spacecraft telemetry packets, that is, firstly preset a certain number of telemetry packets for each frame of telemetry, and multi-frame cycle, and then through the autonomous switching of the telemetry frame table on the satellite or on the ground Note that the scheduling of telemetry packets is realized by updating the telemetry frame table, and the method of frame-by-frame storage is adopted when delaying remote storage, and packets cannot be processed across frames. The arrangement of the telemetry frame table in this way is more complicated and has many restrictions. The scheduling packet scheduling does not have the ability of dynamic self-adaptation, and cannot meet the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/875H04L12/865H04L47/56H04L47/6275
CPCH04L47/562H04L47/6215
Inventor 陈议项杰肖轩高苏湛向甜郭晶晶李瑞琴赵瑞峰
Owner SHANGHAI SATELLITE ENG INST
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