A safety simulation method and system based on CAN bus process

Abstract

The invention discloses a safe flow simulation method based on a CAN (Controller Area Network) bus. The method comprises the main steps of collecting real-time data on the CAN bus of a real system; packaging real-time messages and real-time data on the CAN bus of the real system and the time information of the real-time data into real-time data packets; defining a real system operation scene model, and forming flow fragments of the work site of the real system; according to state fragment and combination of the state fragments, combining the real-time data packets to form operation scene data; and according to the simulation process of the simulation system, sequentially outputting the operation scene data, or responding to the simulation process, and outputting the corresponding operation scene data. The on-site real data is decomposed from control flows in a simulation control strategy and a real control process and forms matching relations with the same, thus the strategy step and the control flow are played back and matched by the real on-site data packets to form data packets, flows and scenes with different details and ranges. A data fusion and processing interface during a simulation process is simplified. The invention also comprises a safe simulation system.

Description

technical field [0001] The invention relates to a signal simulation method and system, in particular to a signal simulation method and system for field state signals. Background technique [0002] The simulation training system is a simulation of the real system. The usual practice is to re-implement the control process and control strategy of the real system on the host computer of the simulation system through software programming. This will lead to a large workload and high cost of programming, testing and verification. On the other hand, due to the distribution of information during the implementation of the control strategy code in the software development process, it is also not conducive to the confidentiality of the control strategy in the real control system. [0003] For example, the application number is 201410161859.0, the application date is 2014.04.22, and the patent document titled "Multifunctional Electric Vehicle CAN Bus Vehicle Equipment Simulator" include...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a safety simulation method based on the process of CAN bus to solve the technical problem of high cost and low security of the simulation method in the existing signal simulation process

[0006] Another object of the present invention is to provide a safety simulation system based on the flow process of the CAN bus, which solves the technical problem of high cost and low safety of the existing signal simulation system

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