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A communication method and device for satellite-borne data

A technology of spaceborne data and communication methods, applied in the aerospace field, can solve problems such as difficult maintenance, increased cost, and increased difficulty in coordination of multiple protocols, achieving the effect of ensuring accuracy and reducing maintenance costs

Active Publication Date: 2018-11-20
SHENZHEN ACAD OF AEROSPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a communication method and device for satellite-borne data, to solve the problem that the data protocols of the satellite-borne systems in the prior art are generally incompatible with each other, so that the cost of the system's compatibility development increases and the coordination between multiple protocols The difficulty increases, which affects the cooperative development efficiency of the project, and different data transmission protocols require different maintenance methods, and later maintenance is also more difficult

Method used

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  • A communication method and device for satellite-borne data

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Experimental program
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Embodiment 1

[0032] figure 1 It shows the implementation process of the communication method for on-board data provided by the first embodiment of the present invention. In this embodiment, a subnet convergence layer is set up between the application layer and the data link layer of the on-board system. The communication method is described in detail as follows:

[0033] In step S101, a transmission request for onboard data is received, the transmission request for onboard data includes transmission protocol parameters for onboard data, and the transmission protocol parameters include transmission priority parameters, transmission quality parameters, and transmission protocol types.

[0034] Specifically, the transmission request of the on-board data may be sent by an application program at the application layer, or may be sent by a bottom-layer on-board device. For example, the application program at the application layer can send requests such as control command data and transfer data t...

Embodiment 2

[0054] figure 2 It shows the implementation flow of the on-board data communication method provided by the second embodiment of the present invention. A subnet convergence layer is set up between the application layer and the data link layer of the on-board system. The method is described in detail as follows:

[0055] In step S201, a transmission request for onboard data is received, the transmission request for onboard data includes transmission protocol parameters for onboard data, and the transmission protocol parameters include transmission priority parameters, transmission quality parameters, and transmission protocol types.

[0056] In step S202, according to the transmission priority parameter in the transmission protocol parameters, the transmission sequence of the on-board data to be transmitted is determined.

[0057] In step S203, a data link resource matching the transmission quality parameter is selected according to the transmission quality parameter in the tra...

Embodiment 3

[0067] image 3 It shows the implementation flow of the communication method for on-board data provided by the third embodiment of the present invention. A subnet convergence layer is set up between the application layer and the data link layer of the on-board system. The method is described in detail as follows:

[0068] In step S301, a transmission request for on-board data is received, the transmission request for on-board data includes transmission protocol parameters of the on-board data, and the transmission protocol parameters include transmission priority parameters, transmission quality parameters and transmission protocol types.

[0069] In step S302, according to the transmission priority parameter in the transmission protocol parameters, the transmission sequence of the on-board data to be transmitted is determined.

[0070] In step S303, according to the transmission quality parameters in the transmission protocol parameters, data link resources matching the trans...

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Abstract

The invention is suitable for the field of aerospace, and provides a communication method and device for spaceborne data. A subnet convergence layer is disposed between an application layer and a data link layer of a spaceborne system. The method comprises the steps: receiving a transmission request of spaceborne data; determining the transmission sequence of spaceborne data to be transmitted according to transmission priority parameters; selecting a data link resource matched with a transmission quality parameter according to the transmission quality parameter; enabling the spaceborne data to be transmitted to be mapped to a data link corresponding to a transmission protocol type according to the transmission protocol type; and transmitting the spaceborne data on the mapped data link according to the determined transmission sequence of the spaceborne data and the matched data link resource. The method can be well compatible with data coordination transmission of a plurality of protocols, can achieve the maintenance of different data transmission through the subnet convergence layer, and can effectively reduce the maintenance cost.

Description

technical field [0001] The invention belongs to the field of aerospace, and in particular relates to a communication method and device for satellite-borne data. Background technique [0002] With the increase in the scale and complexity of space missions, correspondingly, the types and quantities of spaceborne equipment connected to the spaceborne electronic system are also increasing. Due to the speed of data transmission required by various spaceborne equipment and the Different data formats require different data transmission protocols for data transmission, such as Space Wire, CAN, IEEE1394, Ethernet and other protocols. [0003] Due to the increase in the complexity of spaceborne equipment and the increase in the number of spaceborne equipment, modern aerospace projects are often jointly developed by multiple R&D institutions, and a variety of different data transmission protocols are often used during the development process, and these data protocols Generally, they a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04W72/10H04W72/12
Inventor 罗嘉金张宇丁元
Owner SHENZHEN ACAD OF AEROSPACE TECH
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