Satellite data acquisition and transmission method

A transmission method and satellite data technology, which is applied in the field of aerospace vehicles, can solve the problems of no description or report, no data collected, etc., and achieve the effect of enhancing the degree of modular design, easy format reconstruction, and reducing the number of equipment

Active Publication Date: 2011-08-10
SHANGHAI SATELLITE ENG INST
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Problems solved by technology

[0003] At present, there is no description or report of the similar technology of the present invention, and no similar data at home and abroad have been collected yet.

Method used

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  • Satellite data acquisition and transmission method
  • Satellite data acquisition and transmission method
  • Satellite data acquisition and transmission method

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Embodiment Construction

[0016] see figure 1 , m1, m2, ... mn in the figure are located in the interval [1, the total number of modes of the lower computer].

[0017] The satellite data communication network consists of a host computer (usually set in the digital control / satellite computer), several sub-system sub-computers (set in the system sub-processor or a certain device, the number of sub-computers is set according to the needs of the satellite) and the bus.

[0018] The main sub-systems (including load, attitude control, power supply, thermal control, etc.) are respectively equipped with system sub-computers, and each sub-computer collects the telemetry parameters of the corresponding sub-systems, and forms data frames, which can be pre-set according to system monitoring needs Several programming modes, such as: normal, basic, various monitoring key points, fast, etc. The amount of telemetry data and the collection cycle are different in different modes to meet normal work, system failures, oth...

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Abstract

The invention relates to a spacecraft and aims at providing a satellite data acquisition and transmission method which is adaptive to various monitoring requirements, has various formats and is flexible and convenient to change. The method specifically comprises data acquisition software implementation, data local framing and overall framing and data multimodal transmission and format reconfiguration technique. The method solves the problems of telemetering acquisition and transmission of the small satellite based on a distributed data processing system, can change the data acquisition cycle and data transmission content according to the ground control and greatly improves the adaptability of the satellite to the ground maintenance and user monitoring change in requirement; in addition, due to the reconfigurable function of the telemetering transmission format, the telemetering channel resources can be optimized for distribution and use, the utilization rate of limited telemetering channel resources is improved, and the system practicability is improved.

Description

technical field [0001] The invention relates to an aerospace vehicle, in particular to a method for collecting and transmitting satellite data. Background technique [0002] According to the requirements of satellites and the characteristics of mutual constraints, the design and research of multi-state satellite telemetry acquisition and transmission schemes are carried out. Its acquisition and transmission requirements are high. The satellite adopts a distributed system based on the CAN bus. Although this form has been used on many satellites in China, due to the large amount of satellite telemetry data and the high pressure on bus transmission, the miniaturization of the satellite computer (including the upper computer) must also be considered According to the design requirements, the existing data is mainly processed by the central computer. The bus transmits a large amount of data and the workload of the lower computer is heavy, which is easy to cause data congestion an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C19/00H04B7/185
Inventor 徐敏温俊健陈筠力姬鹏
Owner SHANGHAI SATELLITE ENG INST
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