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A SpaceWire bus free topology bit error rate test system and method

A bit error rate test and bit error rate technology, applied in the field of aerospace data transmission, can solve the problems of no specific method and evaluation standard for transmission bit error rate, loss, variability, etc.

Active Publication Date: 2019-05-31
CHINA ACADEMY OF SPACE TECHNOLOGY
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AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: in view of the current prior art, errors such as data corruption, loss, and denaturation are prone to occur in data transmission due to the high bit error rate, which will directly affect the success or failure of aerospace model missions, but for its transmission error There is still no specific method and evaluation standard for the test of the bit rate, and a SpaceWire bus free topology bit error rate test system and method are proposed

Method used

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  • A SpaceWire bus free topology bit error rate test system and method
  • A SpaceWire bus free topology bit error rate test system and method
  • A SpaceWire bus free topology bit error rate test system and method

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Embodiment Construction

[0053] A bit error rate testing system for the free topology of SpaceWire bus, including: power supply module, control debugging module, data processing module, debugging and verification module, backup module, noise injection module, signal capture module, wherein:

[0054] Power supply module: It supplies power for the entire test system, and the output terminal of the power supply is connected to the DC / DC module, which can change the input voltage value to the voltage value required during the test process. The power supply module is divided into multiple channels according to the number of modules to be tested, and can supply 5V, 3.6V, 2.7V, 1.5V and other voltages at the same time according to the different boards to be tested.

[0055] Control debugging module: This module is used to configure the module to be tested, set the transmission link path, and set the transmission data mode, and make the device and system work in the selected test environment through the debugg...

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Abstract

The invention discloses a SpaceWire bus free topology bit error rate test system and method. The method is realized based on a SpaceWire error rate testing device. Working modes of different controllers, router connection mode, the data transmission types are freely combined under various complex conditions; the error rate of the SpaceWire component is judged by measuring the error code conditionsof the data code bits of the input end and the output end of different controllers, the problem that errors such as data damage, data loss and data denaturation easily occur in the transmission process due to lack of judgment of the error rate in the prior art is solved, and the method has the advantages of being high in confidence degree and short in test time.

Description

technical field [0001] The invention relates to a SpaceWire bus free topology bit error rate testing system and method, belonging to the field of aerospace data transmission. Background technique [0002] Due to its own unlimited bandwidth, the SpaceWire bus can theoretically realize a free topology and has a highly reliable data transmission capability. Therefore, its application scope in the field of aerospace communication at home and abroad is becoming more and more extensive, such as European comet probes, mercury probes, space stations, and space telescopes, as well as American Hubble robots, lunar probes, and a new generation of stationary weather satellites etc. Japan also started using SpaceWire bus technology on the X-ray telescope launched in 2010 and the Mercury probe launched in 2012. China is preparing to apply the SpaceWire bus, and has carried out a series of research and application work. [0003] However, the transmission rate of the SpaceWire bus is inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L1/20G06F11/22G06F11/10
Inventor 崔斌王文炎王兴友王喆邹萌张雷浩肖爱斌张洪伟
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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