Multi-source heterogeneous embedded software co-simulation test method

Abstract

The invention discloses a multi-source heterogeneous embedded software co-simulation test method. The method comprises a hybrid P2P-based co-simulation test method, a sliding window-based clock synchronization method and a time coefficient matrix-based dynamic time advancing method. The hybrid P2P-based collaborative simulation test method adopted by the invention can realize hybrid collaborativesimulation of all-physical, semi-physical, all-digital and other nodes in multi-source heterogeneous embedded software, so as to completely simulate a software application scene as soon as possible todiscover potential defects for defect prevention. According to the clock synchronization method based on the sliding window, efficient synchronization of node clocks can be achieved in the collaborative simulation execution process, and the problem of time consistency is solved. According to the dynamic time advancing method based on the time coefficient matrix, correct advancing of a simulationtime sequence is ensured.

Description

technical field [0001] The invention relates to a software co-simulation test method, in particular to a multi-source heterogeneous embedded software co-simulation test method. Background technique [0002] Embedded systems are widely used in weapons and equipment, aviation, aerospace, industrial control, civil electronics and other fields. They have the characteristics of construction, strong real-time performance, high security, etc., and have a large amount of work data and various application scenarios. In an embedded system with complex tasks, a large amount of embedded software is distributed on different equipment platforms and connected to each other through various buses and networks. The function of each item shows the characteristics of multi-source heterogeneity. [0003] For aerospace, weaponry and other multi-source heterogeneous embedded systems with high reliability and safety requirements, software failure may affect people's lives, and the cost and consequ...

AI Technical Summary

Problems solved by technology

[0004] For large multi-source heterogeneous embedded systems such as aerospace and weaponry, there are often inconsistencies in the development progress of various components and subsystems. Due to the lack of hardware resources and the inconsistency in the development progress of each subsystem, it is difficult Subsystems are adequately tested, verified and evaluated, resulting in testing and defect discovery being delayed

For example, if a serious system design problem is discovered in the late stage of software development, the impact of the problem will be magnified step by step, the modification cost will increase exponentially, and even cause the project cycle to be delayed

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