Industrial system detection method with online detection and simulation modeling verification combined

Abstract

The invention relates to an industrial system detection method with online detection and simulation modeling verification combined. A reliability and safety testing evaluation method aiming at rail signal system equipment is provided and is suitable for automatic block testing evaluation for electrical and non-electrical sections and universal sections of multiple rail circuit types in the field of rail transit. The method includes the steps of physical property signal analysis, physical signal process modeling, online real-time detection and simulation verification and fault real-time detection and diagnosis. A system overcomes the defect that a traditional instrument can only independently measure a certain amount and enables various measured values to communicate with one another. Information sharing is achieved, the tested system can be conveniently and comprehensively analyzed and evaluated, and accurate judgment is carried out. According to the system, testing instruments do not need to be configured for complex tested system providers, and traditional defects are overcome.

Description

technical field [0001] The invention relates to an industrial system detection method combining online detection and simulation modeling verification, belonging to the technical field of track signals. Background technique [0002] Railway signal is a general term for the signal, interlocking, blocking and other equipment used in the railway system. The track circuit is a circuit used by the railway system to automatically and continuously detect whether a section of the line is occupied by locomotives, and to control the action of the signal device or the switch device. It is an equipment to ensure driving safety and an important part of the railway signal. The orbital frequency shift signal is a phase continuous frequency shift keying signal (CPFSK), which essentially uses the frequency parameter as the control information, and uses the method of frequency modulation to modulate the signal with a higher frequency with a low frequency signal to generate a signal with differ...

AI Technical Summary

Problems solved by technology

[0004] In our country, due to the limitation of design and indoor debugging conditions and the time limit of on-site opening test, the reliability and safety testing and evaluation of signal system equipment are still insufficient

[0005] From the perspective of research and development, most research and development units still put their products in the actual operating environment for on-site testing, which requires a lot of effort, material resources and time, which will have an impact on rail transportation, and it is impossible to conduct a large number of on-site tests repeatedly, which is not conducive to early detection design flaw

[0006] From a production point of view, the testing methods, methods, cases and test contents in the production process are very limited, and it is difficult for manufacturers to fully consider the actual range environment of equipment operation, which will not be conducive to comprehensive testing and evaluation of product reliability and safety , easy to leave security risks

[0007] From the perspective of maintenance, on-site maintenance of signal equipment still lacks flexible test equipment, and most of them are maintained based on experience, which is likely to cause poor maintenance of equipment and interfere with transportation and production

[0008] In view of the above problems, the present invention proposes an orbital frequency shift signal detection method and system that combines online detection and offline simulation modeling verification, to replace the current imperfect and potential safety hazard methods that rely on experts and actual line operations. Solve the reliability and safety of equipment related to safety control and protection systems (signal systems) in the field of rail transit, and establish scientific and accurate testing and evaluation methods and tools

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