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SpaceWire uniform spaceborne information network

An information network and spaceborne technology, applied in transmission systems, digital transmission systems, radio transmission systems, etc., can solve problems such as low functional density, complex and diverse interfaces, and difficulty in meeting spaceborne information interaction, and break through the bottleneck of transmission bandwidth. , the effect of flexible interaction of whole star information

Inactive Publication Date: 2017-08-18
SHANGHAI SATELLITE ENG INST
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Problems solved by technology

Therefore, the functional density of the system is low, and the interface is complex and diverse. Especially for the transmission of control information such as star service, measurement and control, etc., the 1553B bus or CAN bus is often used. The characteristics of this type of bus are master-slave and half-duplex working methods , and the effective transmission bandwidth is less than 1Mbps, it is difficult to meet the growing demand for spaceborne information interaction

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Embodiment Construction

[0014] Embodiments of the present invention are described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are provided, but the protection scope of the present invention is not limited to the following embodiments.

[0015] This embodiment provides a unified spaceborne information network architecture based on SpW technology, such as figure 1 As shown, the network architecture integrates the information flow of the satellite, including information such as satellite affairs, measurement and control, attitude control, and payload, and realizes the networked interaction of the entire satellite information flow. The unified space-borne information network consists of three subnets, namely the satellite service measurement and control subnet, the attitude control subnet and the data fusion subnet. The information interaction of each subnetwork is...

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Abstract

The present invention relates to a SpaceWire uniform spaceborne information network consisting of three sub-networks, that is, a satellite measure and control sub-network, an attitude control sub-network, and a data fusion sub-network. Complete satellite information flows are combed, and complete satellite information is classified, so that a corresponding protocol processing method is raised according to characteristics of each category of information. Uniform spaceborne information of the complete satellite information flows can realize internet interaction, information transmission of satellite, measure and control, and attitude control with high reliability requirements is ensured, information transmission of load with high real-time requirement is also ensured, so that the interfaces for complete satellite information flows are uniform.

Description

technical field [0001] The invention relates to a space-borne comprehensive information flow network, in particular to a SpaceWire unified space-borne information network. Background technique [0002] At present, the overall design of my country's satellite electronic system is still in the process of establishing subsystems based on traditional mission functions (such as measurement and control subsystems, digital management subsystems, overall circuit subsystems, and attitude control subsystems, etc.), and each subsystem is designed independently. The superposition of to achieve the state of the model task. Therefore, the functional density of the system is low, and the interface is complex and diverse. Especially for the transmission of control information such as star service, measurement and control, etc., the 1553B bus or CAN bus is often used. The characteristics of this type of bus are master-slave and half-duplex working methods , and the effective transmission ban...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04L1/00
CPCH04B7/18517H04L1/0073
Inventor 王震董瑶海陆国平陈强汪栋硕
Owner SHANGHAI SATELLITE ENG INST
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