Satellite delay telemetry data storing and downloading method

A technology for telemetry data and satellites, applied in the aerospace field, can solve the problems of loss of instantaneous state information of satellites, large compression of satellite delay telemetry data, etc., to alleviate the large amount of data, avoid information loss, and prolong device life.

Active Publication Date: 2015-07-01
AEROSPACE DONGFANGHONG DEV LTD
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Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a method for storing and downloading satellite delay telemetry data, aiming to solve the problem of relatively large compression of satellite delay telemetry data in the prior art due to the low code rate of the measurement and control components, which...

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  • Satellite delay telemetry data storing and downloading method
  • Satellite delay telemetry data storing and downloading method
  • Satellite delay telemetry data storing and downloading method

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] The method for storing and downloading satellite delay telemetry data of the present invention comprises the following steps:

[0023] Collect satellite telemetry parameters in real time and generate real-time telemetry frames according to the specified cycle, and the number of bytes of real-time telemetry frames generated per cycle is a fixed value;

[0024] When the on-board computer transmits the real-time telemetry frame to the ground through the measurement and control module, it is stored in the non-volatile memory of the on-board computer in the order of generation;

[0025] When sto...

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Abstract

The invention is applicable to the aerospace field and provides a satellite delay telemetry data storing and downloading method. The method comprises collecting real-time satellite telemetry data; storing the real-time satellite telemetry data into a nonvolatile memory in a cyclic covering mode to form uncompressed delay telemetry data; according to a preset storage cycle, synchronizing the critical data of the nonvolatile memory such as the current writing position, the reading position and the data downloading state to a satellite-mounted backup device; designing an uncompressed delay telemetry data downloading instruction, and according to user requirements, resuming uncompressed delay telemetry data which are not completely transmitted the last time or selecting uncompressed delay telemetry data corresponding to a downloading designated satellite time. The satellite delay telemetry data storing and downloading method has the advantages of solving the contradiction that microsatellites are large in overseas telemetry data volume and measurement and control modules are low in transmission bit rate, being capable of providing effectively support for satellite on-orbit abnormality location, overseas condition query and the like and effectively improving the system reliability.

Description

technical field [0001] The invention belongs to the field of aerospace, and relates to a method for storing and downloading satellite delay telemetry data, in particular to a method for storing and downloading satellite delay telemetry data based on low-speed S-band measurement and control components, and is suitable for using S-band low-speed The satellite of the measurement and control component performs on-orbit abnormal positioning and working condition analysis. Background technique [0002] During the operation of the satellite, the satellite transmits its own working status and other information data to the ground through the transmission of telemetry data from the ground measurement and control station. There are two types of telemetry data: real-time telemetry data and delayed telemetry data. When the satellite is within the monitoring range of the measurement and control station, its working status can be immediately transmitted to the ground through real-time tel...

Claims

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Application Information

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IPC IPC(8): G01S19/37
CPCG01S19/37
Inventor 寇义民刘宽俊蒲卫华张迎春薛力军于小龙潘乐尚华何峰庄武祥张莹
Owner AEROSPACE DONGFANGHONG DEV LTD
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