System and method for detecting geometric quantity of portable track through MEMS gyroscope

A detection system and gyroscope technology, applied in instruments, measuring devices, railway vehicle shape measuring instruments, etc., can solve the problems of high price, low measurement accuracy and low reliability of rail detectors, and achieve good scalability. , the effect of high measurement accuracy and low cost

Inactive Publication Date: 2015-04-29
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

Due to the high price of the track inspection instrument based on the total station, a large number of track inspection instruments using the chord method are actually used in railway inspections in my country, but their measurement accuracy is not high
Although the track inspection instrument based on the angle measurement of the fiber optic gyroscope ado...

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  • System and method for detecting geometric quantity of portable track through MEMS gyroscope
  • System and method for detecting geometric quantity of portable track through MEMS gyroscope

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0028] like figure 1 As shown, a typical portable rail detector system using a MEMS gyroscope includes a portable rail detector body 102, a MEMS gyroscope 104, a left displacement sensor 103, a right displacement sensor 106, an odometer 105, a signal acquisition / conditioning unit 108 and Embedded Computing Device 109 . Wherein, when the rail detector works, its portable rail detector body 102 is placed on the left rail 101 and the right rail 107, and is guided by the inner sides of the left and right rails; the MEMS gyroscope 104 is installed on the portable rail detector body 102 horizontal plane , the odometer is installed on the portable track detector body 102; the left displacement sensor 103 is installed on the portable track detector body 102, and is close to the...

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Abstract

The invention discloses a system and method for detecting the geometric quantity of a portable track through an MEMS gyroscope. The system is characterized by comprising a portable track detector body, the MEMS gyroscope, a speedometer, a left displacement sensor, a right displacement sensor, a signal collecting/conditioning unit and an embedded calculating device, wherein the MEMS gyroscope, the speedometer, the signal collecting/conditioning unit and the embedded calculating device are respectively mounted on the portable track detector body; the left displacement sensor and the right displacement sensor are respectively mounted on the left side and the right side of the portable track detector body; output signals of the MEMS gyroscope, the speedometer, the left displacement sensor and the right displacement sensor successively pass through the signal collecting/conditioning unit and the embedded calculating device. The detecting system and the method disclosed by the invention have the characteristics of compact structure, high reliability, high economy and reasonability and high detection accuracy, and can be widely used for the updating and the upgrading of a traditional portable track detector and have great application potential.

Description

technical field [0001] The invention relates to the detection field of railway track geometric quantities, in particular to a portable track geometric quantity detection system and method using a MEMS gyroscope. Background technique [0002] With the high-speed railway passenger transportation, heavy freight transportation, especially the huge development of high-speed railway, railway transportation has entered a new era. Track quality directly affects the safety and efficiency of railway transportation. In addition to the influence of the locomotive and rolling stock itself, the irregularity of the track state is the main reason for destroying the stability of the train operation. These irregularities include: the unevenness of the track height causes the vehicle to nod violently and the ups and downs vibration; the track level irregularity causes the vehicle to roll and vibrate; Vehicle side swing, shaking head vibration; irregular track gauge will cause wheels to fall ...

Claims

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Application Information

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IPC IPC(8): G01B21/16G01B21/02G01B21/32G01B21/00B61K9/08
CPCG01B21/16B61K9/08G01B21/00G01B21/02G01B21/32
Inventor 陈忠张宪民廖亚兴
Owner SOUTH CHINA UNIV OF TECH
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