Spacewire network delay testing and optimizing system

Abstract

The invention provides a Spacewire network delay testing and optimizing system. The Spacewire network delay testing and optimizing system comprises a human-computer interaction interface, a central processing unit, a two-way communication control link based on a PCI bus and a special Spacewire node controller. The central processing unit generates data packets according to configuration parameters input by a user through the human-computer interaction interface, the two-way communication control link based on the PCI bus transmits the data packets to the special Spacewire node controller, the special Spacewire node controller computes delay parameters of each data packet in a Spacewire network in real time, and the central processing unit globally optimizes the Spacewire network according to the delay parameters and provides the obtained optimization result to the human-computer interaction interface. According to the Spacewire network delay testing and optimizing system, a delay test of the Spacewire network is implemented, the tested delay parameters are accurate, the reliability is high, and the real time performance is strong; besides, the to-be-tested Spacewire network is optimized, and if the user optimizes the Spacewire network according to the optimization result, the efficiency of the Spacewire network can be effectively improved.

Description

technical field [0001] The invention relates to a Spacewire network delay test and optimization system, which belongs to the field of Spacewire network test. Background technique [0002] The SpaceWire bus is a new generation of intelligent bus proposed by the European Space Agency (ESA), which has the ability to provide high-speed communication in a high-reliability and high-security environment. With the application and promotion of the Spacewire bus in various fields, more and more attention has been paid to the parameters of the delay and speed of the Spacewire network. [0003] Since the Spacewire bus can communicate within the rate range of 2 to 200Mbps, and the load rate and frequency of use of each node on the Spacewire network are not the same, it is bound to easily cause some paths in the Spacewire network to be overloaded, or even Congestion, resulting in a particularly large delay, while some paths are relatively light or even idle, so that the Spacewire network...

AI Technical Summary

Problems solved by technology

[0003] Since the Spacewire bus can communicate within the rate range of 2 to 200Mbps, and the load rate and frequency of use of each node on the Spacewire network are not the same, it is bound to easily cause some paths in the Spacewire network to be overloaded, or even Blocking, resulting in a particularly large delay, while some paths are relatively light or even idle, so that the Spacewire network cannot be used efficiently and correctly

[0004] At present, there is no solution specifically for Spacewire network optimization, and most of the tests involving Spacewire bus are based on point-to-point tests, which cannot test Spacewire networks; individual systems that involve Spacewire network testing are also tested through the application layer, and the real-time test in the application layer The performance is poor, and the delay parameter error obtained will be too large; at the same time, the network is not optimized according to the test results

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