Non-contact high-speed rail road foundation vibration measurement system

Abstract

The present invention provides a non-contact high-speed rail road foundation vibration measurement system. The system comprises a bar-code ruler, an optical imaging system, an embedded displacement sensor, a computer terminal display module and a communication module. The bar-code ruler is provided with alternately black and white bar codes, the widths of the black bar codes are different, and the central spacing between two adjacent black bar codes is the same; the optical imaging system obtains the real-time image of the bar-code ruler according to a preset period; the embedded displacement sensor comprises a bar-code image collection and transmission module and an information receiving and processing module, the bar-code image collection and transmission module is connected with the optical imaging system to perform collection of the black bar codes, the information receiving and processing module is configured to perform A / D conversion and processing of the collected information to obtain the actual position corresponding to the black bar codes; the computer terminal display module is configured to display the processing result of the information receiving and processing module; and the communication module is configured to transmit the processing result to the external terminal with the operation capacity. The non-contact high-speed rail road foundation vibration measurement system can perform long-term effective monitoring of the high-speed rail road foundation vibration.

Description

technical field [0001] The invention relates to a measurement technology, in particular to a non-contact high-speed railway foundation vibration measurement system. Background technique [0002] Vibration is a very common physical phenomenon in production and life, and it is the reciprocating motion of objects around the equilibrium position. Any mechanical equipment will generate vibration during the working process, and the vibration phenomenon is usually reflected by the change of the equipment's displacement, speed, acceleration, strain force, etc. in response to the measurement signal. Mechanical vibrations are harmful in most cases, disrupting the proper functioning of machines and reducing their performance. Vibration measurement was developed from the aerospace sector, and it also plays an important role in power machinery, transportation, construction and other industrial sectors, as well as environmental protection and labor protection. [0003] With the developm...

AI Technical Summary

Problems solved by technology

These adverse effects will aggravate the damage speed of the rails, and even cause the tragedy of car crashes

Most of the existing track subgrade vibration measurement methods use contact measurement, which has low precision, large errors and frequent measurement times, resulting in a greatly shortened service life of the measuring device, making it difficult to achieve long-term effective monitoring of high-speed railway subgrade vibration

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