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Real-time control and optimization method and system for SpaceWire network time delay

A real-time control and network delay technology, applied in the Internet field, can solve the problems of network time extension and low transmission efficiency

Active Publication Date: 2019-07-05
北京英力恒达科技发展有限公司
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Problems solved by technology

[0006] In view of this, the purpose of this application is to propose a real-time control and optimization method and system for SpaceWire network delay, monitor the overall delay of the SpaceWire network, and reduce the overall delay by optimizing the transmission path between SpaceWire routers, balancing Data transmission load, to solve the technical problems that the overall network transmission efficiency is still low and the overall network time is prolonged in the SpaceWire network in the prior art, so as to improve the network transmission in the SpaceWire network and shorten the network delay

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[0038] The application 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 related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0039] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0040] The connection mode of the router in the SpaceWire network involved in the real-time control and optimization method and system of the SpaceWire network delay of the embodiment of the present application is the same as the connection mode of the router in the SpaceWire...

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Abstract

The embodiment of the invention provides a SpaceWire network time delay real-time control and optimization method. The method comprises the steps that an optimization control node sends monitoring instruction information to a router in a SpaceWire network; in the monitoring time window, after each router completely receives data packets sent by other routers, transmission initial time informationof the data packets is obtained, transmission ending time information of the data packets is added to the data packets, transmission time delay of the data packets is determined, and the data packetsand the corresponding transmission time delay are recorded in a routing table; after the monitoring time window is finished, uploading a routing table of each router to the optimization control node by each router; and after the optimization control node receives the routing table sent by each router, the overall transmission delay of the whole SpaceWire network is calculated, and the target transmission path is optimized and adjusted according to the overall transmission delay. According to the real-time control and optimization method and system for the SpaceWire network time delay, the network transmission efficiency in the SpaceWire network can be effectively improved.

Description

technical field [0001] The present application relates to the technical field of the Internet, in particular to a method and system for real-time control and optimization of SpaceWire network delay. Background technique [0002] SpaceWire is a high-performance (high speed, low power consumption, high reliability) serial bus designed by the European Space Agency (ESA) for aerospace applications. Data communication between test devices. [0003] The SpaceWire network is a network based on the SpaceWire bus between network nodes, including network nodes and SpaceWire routers at all levels. Each network node joining the network can be a spacecraft-borne device or an external test device. Between network nodes and routers and between routers at all levels, data transmission between each other can be realized based on the SpaceWire bus interface. The formed SpaceWire network is used for data communication between spacecraft-borne equipment and between spacecraft-borne equipment...

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Application Information

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IPC IPC(8): H04L12/751H04L12/727H04L12/803H04L12/841H04L45/02H04L45/121
CPCH04L45/121H04L45/02H04L47/125H04L47/283
Inventor 杨衡平李红梅
Owner 北京英力恒达科技发展有限公司
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