scholarly journals TEP Rail Head Profile Trolley - test results of the laser measurement system

2016 ◽  
Vol 2016 (12) ◽  
pp. 9-16
Author(s):  
Marcin Kowalski
Keyword(s):  
Research And Development ◽  
Measurement System ◽  
Optical Measurement ◽  
3D Models ◽  
Test Results ◽  
Laser Measurement ◽  
Research Project ◽  
Laser Measurement System ◽  
Measurement Systems ◽  
Rail Head

The article describes the results of research and development undertaken to develop a compact, optical measurement system for measuring the elements of track infrastructure. The article describes the main features of the optical measurement systems and the results of the research project. The author presents two examples of the implementation of this technology in the portable diagnostic devices: electronic trolley and in the toll for the creation of 3D models of turnout crossings.

Calibration Using Cylindrical Artifacts for 3D Laser Measurement System

2015 ◽  
Vol 9 (5) ◽  
pp. 546-550 ◽  
Author(s):  
Kazuhiro Enami ◽  
Keyword(s):  
Measurement System ◽  
Calibration Method ◽  
Calibration System ◽  
Laser Measurement ◽  
Laser Measurement System ◽  
Measurement Systems

We propose a new calibration method for 3D laser measurement systems used for inspecting the insides of industrial parts such as vessels and pipes. We developed the proposed calibration system using a cylindrical artifact such that the calibration is simple and easy to perform. We simulated and analyzed the proposed cylindrical artifact calibration method and the results demonstrate its adequacy.

scholarly journals Research on Laser Measurement System for Underground Unmanned Load-Haul-Dump

2015 ◽  
Vol 9 (1) ◽  
pp. 916-921
Author(s):  
Li Jianguo ◽  
Zhan kai ◽  
Li Hengtong ◽  
Guo Xin
Keyword(s):  
Data Processing ◽  
Measurement System ◽  
Processing System ◽  
Serial Port ◽  
Laser Measurement ◽  
Data Processing System ◽  
Laser Measurement System

A method of data processing for the laser measurement system (LMS) based on the software LABVIEW which is used for underground unmanned Load-Haul-Dump (LHD) is described. The background of the technology is recommended firstly, the characteristics of LABVIEW and LMS are introduced briefly. How to process the data from LMS using LABVIEW including the algorithm for decoding the data and the frame of programming thought is described in detail. The design of data processing system with a serial port debugging system is expounded. Finally, the system is applied on a model LHD and it is proved that the system has feasibility and wide applying prospects for unmanned LHD.

Study of an Reverse Fourier Laser Measurement System

2015 ◽  
Vol 52 (2) ◽  
pp. 021202
Author(s):  
王亚民 Wang Yamin ◽  
张婧雯 Zhang Jingwen
Keyword(s):  
Measurement System ◽  
Laser Measurement ◽  
Laser Measurement System

scholarly journals Using a laser measurement system for monitoring morphological changes on the Strug rock fall, Slovenia

2005 ◽  
Vol 5 (1) ◽  
pp. 143-153 ◽  
Author(s):  
M. Mikoš ◽  
A. Vidmar ◽  
M. Brilly
Keyword(s):  
Fixed Points ◽  
Cross Sections ◽  
Measurement System ◽  
High Performance ◽  
Morphological Changes ◽  
Ground Surface ◽  
Rock Fall ◽  
Laser Measurement ◽  
Laser Measurement System ◽  
Surface Changes

Abstract. A medium-ranged high performance handheld reflectorless laser measurement system, was used for a morphological survey on the Strug rock fall in W Slovenia in the period from August 2003 to August 2004. The purpose was to evaluate its potential for monitoring ground surface changes in rock fall source areas and to help evaluating morphological changes by measuring distance from fixed points. In the area, 21 fixed geodetic points have been established. Altogether, seven measurement sets with more than 5500 points have been gathered in the rock fall area. Choosing a point cloud with a density of less than 1 point per 10m2 on a very rough rock fall surface failed to be a good solution. The changes on larger areas were shown by displacements of selected significantly large-sized rock blocks with a volume of several m3. Because only smaller changes were observed between the single field series, the rock fall surface generally remained unchanged. Local surface changes of the order of 1 m or more, were clearly shown by measurements in the selected referenced cross sections. The usage of these cross sections gave a possibility to evaluate volumetric changes on the surface. The laser measurement system provided a good replacement for the classical terrestrial geodetic survey equipment, especially when performing remote monitoring of morphological changes in rock fall hazard zones, however, the case is different when fixed points are to be measured precisely.

FRA Autonomous Track Geometry Measurement System Technology Development: Past, Present, and Future

2014 ◽  
Author(s):  
Soheil Saadat ◽  
Cameron Stuart ◽  
Gary Carr ◽  
James Payne
Keyword(s):  
Research And Development ◽  
Measurement System ◽  
Research Program ◽  
Life Cycle Cost ◽  
Technology Development ◽  
Web Based ◽  
Track Geometry ◽  
Measurement Systems ◽  
Geometry Measurement ◽  
Multi Phase

The Federal Railroad Administration’s (FRA’s) Office of Research and Development has undertaken a multi-phase research program focused on the development and advancement of Autonomous Track Geometry Measurement Systems (ATGMS) and related technologies to improve rail safety by increasing the availability of track geometry data for safety and maintenance planning purposes. Benefits of widespread use of ATGMS technology include reduced life-cycle cost of inspection operations, minimized interference with revenue operations, and increased inspection frequencies. FRA’s Office of Research and Development ATGMS research program results have demonstrated that the paradigm of track inspection and maintenance practices, information management and, eventually, government regulations will change as a result of widespread use of ATGMS technology by the industry. A natural consequence of increased inspection frequencies associated with ATGMS is the large amount of actionable information produced. Therefore, changing existing maintenance practices to address a larger number of identified track issues across large geographic areas will be a challenge for the industry. In addition, managing ATGMS data and assessing the quality of this information in a timely manner will be challenging. This paper presents an overview of the FRA’s ATGMS research program with emphasis on its evolution from a proof-of-concept prototype to a fully operational measurement system. It presents the evolution of ATGMS technology over time including the development of a web-based application for data editing, management and quality assurance. Finally, it presents FRA’s vision for the future of the ATGMS technology.

Optical 3D laser measurement system for navigation of autonomous mobile robot

2014 ◽  
Vol 54 ◽  
pp. 159-169 ◽  
Author(s):  
Luis C. Básaca-Preciado ◽  
Oleg Yu. Sergiyenko ◽  
Julio C. Rodríguez-Quinonez ◽  
Xochitl García ◽  
Vera V. Tyrsa ◽  
...  
Keyword(s):  
Mobile Robot ◽  
Measurement System ◽  
Autonomous Mobile Robot ◽  
Laser Measurement ◽  
Laser Measurement System
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