Non-contact automatic measurement system for the static clearance of rolling stock

被引：2

作者：

机构：

[1] State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University

[2] Locomotive and Vehicle Test Station, Products Quality Supervision and Test Center of MOR

来源：

Guo, Y. | 1600年 / Chinese Academy of Railway Sciences卷 / 34期

关键词：

Automatic measurement; Laser tracker; Non-contact; Rolling stock clearance; System calibration;

D O I：

10.3969/j.issn.1001-4632.2013.01.21

中图分类号：

学科分类号：

摘要：

Concerning the difficulties such as precise measurement control, complicated operation and low efficiency in contact clearance gauge for railway rolling stock, a non-contact automatic measurement system for the static clearance of rolling stock is designed based on laser ranging sensors and measurement computer, and with PLC as its main control unit. The system automatically measures the entire section of rolling-stock with laser ranging sensors which are placed at four sides of the vehicle and moved under the control of motor drive. The orbit coordinate system is built by measuring a precision target with the laser tracker. During the measurement of static clearance, system calibration is used to eliminate error. The distance between each part of the section and the clearance is obtained by combining data from all sensors. It has been verified by field experiments that system measurement precision can reach up to 0.5 mm, and high-level automation is realized to better satisfy the requirements for the static clearance measurement of rolling stock.

引用

页码：134 / 138

页数：4

共 5 条

[1]

Checking of rolling stock clearance for standard gauge railways - Part 2: Clearance treadle, (2007)

[2]

Han M., Han B., Li H., Et al., Calculation method of the distance between railway out-of-gauge goods and structure gauge, China Railway Science, 32, 1, pp. 122-126, (2011)

[3]

Zhang F., Qu X., Ye S., Multiple sensor fusion in large scale measurement, Optics and Precision Engineering, 16, 7, pp. 1236-1240, (2008)

[4]

Feng K., Yu H., Shao C., Intelligentization and innovation of track gauge, Railway Quality Control, 38, 10, pp. 21-24, (2010)

[5]

Wei Z., Sun W., Zhang G., Et al., Global calibration method for laser-tracking measurement system based on vision guiding, Chinese Journal of Scientific Instrument, 30, 11, pp. 2262-2267, (2009)

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