![]() The full-section profile of the rail is then produced by splicing these two half-sections together. In most cases, a line-structured light sensor is placed on each side of a rail in order to obtain the profile data of the left and right half-sections of the rail. As a mainstream method of dynamic detection of rail profiles globally, it can detect the parameters of in-service rails, such as vertical wear and side wear. The measurement of rail profiles using line-structured light vision is based on the principle of triangulation and features high speed, high precision, and noncontact. As a result of regularly inspecting the rail profile, as well as evaluating the state parameters of these rails, such as vertical wear and side wear, it is possible to gain a better understanding of not only the state of the rails but also how to grind the rails, as this is a crucial part of railway operations and maintenance. Rails play an important role in the maintenance and repair of railway lines. Using the method in this study, the laser plane attitude can be quantified and accurately assessed on both sides, effectively resolving the problem with traditional methods that can only assess the laser plane attitude qualitatively and roughly, thereby providing a solid foundation for calibration and error correction of the measurement system. On this basis, laser coplanarity evaluation criteria were developed to determine whether the laser planes on both sides of the rails are coplanar. Real-time fitting of laser planes with three planar targets of different heights provides information about the laser plane attitude on both sides of the rails. This study proposes an evaluation method based on fitting planes in response to this problem. Currently, in the field of rail profile measurement, there are no effective methods for evaluating laser plane attitude, and it is impossible to determine the degree of laser coplanarity quantitatively and accurately. If you choose to do business with this business, please let the business know that you contacted BBB for a BBB Business Profile.Īs a matter of policy, BBB does not endorse any product, service or business.The non-coplanar lasers on both sides of the rail during full-section rail profile measurement based on line-structured light vision will cause the measured profile to be distorted, resulting in measurement errors. BBB Business Profiles are subject to change at any time. When considering complaint information, please take into account the company's size and volume of transactions, and understand that the nature of complaints and a firm's responses to them are often more important than the number of complaints.īBB Business Profiles generally cover a three-year reporting period. ![]() However, BBB does not verify the accuracy of information provided by third parties, and does not guarantee the accuracy of any information in Business Profiles. BBB asks third parties who publish complaints, reviews and/or responses on this website to affirm that the information provided is accurate. ![]() BBB Business Profiles may not be reproduced for sales or promotional purposes.īBB Business Profiles are provided solely to assist you in exercising your own best judgment.
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