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Data storage system and access method of a spacecraft

A technology for data storage systems and spacecraft, applied in memory systems, electrical digital data processing, instruments, etc., can solve the problems of low data read and write efficiency, complex address configuration, and error-prone, and achieve reduced complexity and small memory space. , the effect of convenient use

Active Publication Date: 2021-04-13
BEIJING INST OF SPACECRAFT SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of spacecraft technology, the scale of data that needs to be stored on the spacecraft has increased significantly, and the types of data have continued to increase. The demand for on-orbit modification of data has been increasing. Low writing efficiency and other issues. At the same time, when modifying important parameters on-track, it is necessary to find the storage address of the parameter through a table lookup and then modify it. This process is cumbersome and error-prone when there are many parameters.

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0107] When the spacecraft is in orbit, it is necessary to modify the parameters of the flight phase of the spacecraft. The storage path of the parameters of the flight phase of the spacecraft is / star affairs parameter module / working status sub-module / parameters of the flight phase of the spacecraft. The length of the parameters of the flight phase of the spacecraft is 2 byte. When the spacecraft separates from the launch vehicle, the value of this parameter needs to be modified to 0x0001, which means the spacecraft enters the independent flight stage. The ground command center sends a modification request through remote control commands. After the spacecraft receives the request, the process of modifying the parameters of the flight phase is as follows:

[0108] (1) The spacecraft first searches for the control and propulsion parameter module, which contains the address of the star mission parameter module;

[0109] (2) The spacecraft accesses the storage content of the sta...

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PUM

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Abstract

The invention relates to a spacecraft data storage system and an access method, belonging to the technical field of spacecraft data storage and on-orbit maintenance. The system proposed by the invention can effectively reduce the complexity of important data management of the spacecraft and improve the efficiency of searching and modifying important data by linearly storing the important parameters of the spacecraft according to the layered structure. The system technology occupies a small memory space and is suitable for spacecraft equipment with very limited memory capacity. The system proposed by the invention can carry out on-orbit modification of file content through simple remote control commands, and supports two on-orbit modification modes of local modification and overall modification of the file system, which is convenient for users on the ground. The system technology proposed by the invention has been used and verified in my country's on-orbit spacecraft.

Description

technical field [0001] The invention relates to a spacecraft data storage system and an access method, belonging to the technical field of spacecraft data storage and on-orbit maintenance. Background technique [0002] When a traditional spacecraft stores data, it stores the data at a pre-designated address. With the development of spacecraft technology, the scale of data that needs to be stored on the spacecraft has increased greatly, and the types of data have continued to increase. The demand for on-orbit modification of data has increased. However, the method of storing data at a predetermined address has complex address configuration and data reading At the same time, when modifying important parameters on-track, it is necessary to find the storage address of the parameters through a table lookup and then modify them. This process is cumbersome and error-prone when there are many parameters. Contents of the invention [0003] The problem to be solved by the technolog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02G07C5/08
CPCG06F12/0246G07C5/085
Inventor 余晟周波邱骐孙勇李林汪路元张亚航张睿牛嘉祥乔梁李露铭詹盼盼冯承钰
Owner BEIJING INST OF SPACECRAFT SYST ENG