Magnetic suspension rail state automatic detection apparatus and method

Abstract

The invention relates to a magnetic suspension railway state automatic detection device and its method, and is used in magnetic suspension railway state detection technique field. In the device of the invention, both the displacement transducer and triggering transducer are installed at the measurement bay, and connected to the high speed data acquisition card. The measurement bay is fixed on the car frame by front-back fixed bolt. The output end of the high speed data acquisition card is connected to the input end of wide frequent digital filtering processor. And its output end is connected to the input end of the moving displacement error calculus processor. And its output end is connected to the high speed memory. In the method, the wide frequent digital filtering processor is adopted the difference digital filtering algorithm to eliminate the vibration of the system own, find the measured value difference of the adjacent transducer, use the moving displacement error algorithm based on the displacement difference value to gained the exact moving displacement error value, and realize the rapid automatic detection of the car carrying type magnetic suspension railway state. The invention overcomes the influence of the detection precision caused by the vibration, and has rapid automatic detection and high precision.

Description

technical field [0001] The invention relates to a detection device and method, in particular to a magnetic levitation track state automatic detection device and method, which are used in the technical field of magnetic levitation track dynamic detection. Background technique [0002] The normal operation of the high-speed maglev train is realized by the functional parts fixed on both sides of the elevated track beam to realize the maglev guidance and power traction. Since the functional parts are manufactured in sections and installed end-to-end on the track beams continuously, the geometric deviation of adjacent functional parts exceeding the limit will cause damage to the guidance system of the maglev train, which may cause major safety accidents. Therefore, it is necessary to regularly detect the shape and position errors of functional parts. However, so far, there are few technologies and experiences that can be applied to the detection of maglev tracks. The currently ...

AI Technical Summary

Problems solved by technology

The system is designed for automatic detection of track conditions, but the infrared light source used in this patent is greatly affected by ambient light, which directly affects the measurement accuracy

Moreover, the acceleration information of the locomotive is measured, and the data must include the vibration mode of the locomotive itself. The greater the speed, the stronger the vibration, so that the measurement results cannot directly reflect the geometric irregularity of the track.

Therefore, this technology cannot meet the measurement requirements of the maglev track in terms of accuracy and speed.

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