Method for improving anti-jamming performance of spw network transmission and its verification system
A technology of network transmission and verification system, which is applied in the field of improving the anti-interference performance of SpW network transmission and its verification system, which can solve the problems of uncollected data and no discovery, so as to improve anti-interference performance, ensure security, and solve potential security risks. Effect
Active Publication Date: 2018-11-23
SHANGHAI SATELLITE ENG INST
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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.
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[0032] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0033] According to the method for improving the anti-interference performance of SpW network transmission provided by the present invention, for the cable design scheme defined by the SpW network protocol standard ECSS-E-50-12C, the engineering application adaptability is improved, and the No. The contacts are directly connected with wires to ensure that the signal grounds between network transceiver devices are on the same ground plane. This measure solves the design defect that the signal groun...
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The invention provides a method for improving Spw network transmission anti-interference performance. The method adopts a cable defined based on a Spw network protocol standard ECSS-E-50-12C, contacts 3 of connectors at transmitting and receiving ends of a cable set are directly connected by means of a lead wire, so that signal grounds between network transmitting equipment and network receiving equipment are on a same ground plane. The invention further provides a verification system using the method, and the verification system comprises an EMC test environment, an electrostatic discharge source, a test computer, a link analyzer and two sets of SpW node equipment. In engineering application, when interference is introduced to a system, such as electrostatic discharge, a voltage difference between the signal grounds at transmitting and receiving ends is prone to occur, further SpW network transmission interruption is caused, and the network transmission anti-interference performance is weak. Aiming at the SpW network transmission abnormal interruption phenomenon in engineering application, the method is provided by the invention for improving a cable design scheme, so that the signal grounds at the network transmitting and receiving ends are connected, the Spw network transmission anti-interference performance is improved, and the hidden safety hazards in engineering application are eliminated.
Description
technical field [0001] The invention relates to the reliability of SpaceWire information network data interaction in engineering applications, in particular to a method for improving the anti-interference performance of SpW network transmission and a verification system thereof. Background technique [0002] SpaceWire (referred to as SpW) network technology is jointly formulated by ESA, European Space Corporation and academia, referred to as ECSS-E-50-12C. It is based on the two commercial standards IEEE-1355-1995 and LVDS. Under the condition of taking into account the characteristics of space applications, it absorbs the advantages of 1394 bus, ATM and Ethernet technology, and builds a high-speed, point-to-point, full-duplex Serial bus network. This bus standard is dedicated to the processing of spacecraft payload system data and control information to meet the goal of high-performance and high-speed data transmission in the future, and provides a unified infrastructure f...
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IPC IPC(8): H01R13/648H01R13/658
CPCH01R13/648H01R13/658H01R2201/04
Inventor 王震董瑶海刘辉岳赟许娜
Owner SHANGHAI SATELLITE ENG INST