阅读说明：本技术 一种有轨电车槽型轨轨道几何参数测试系统 (Tram cell type rail track geometric parameters test system ) 是由 陈春 宋峒桥 杨志飞 董泽翔 董泽伟 于 2021-08-25 设计创作，主要内容包括：本发明涉及一种有轨电车槽型轨轨道几何参数测试系统,包括：轨检计算引擎模块、实时定位引擎模块、轮廓处理引擎模块、图像处理引擎模块、信号调理模块、巡检相机、二维激光传感器、惯性测量传感器组件、定位组件、曲线监控单元、实时超限及报表单元、线路监控及图像单元、轮廓显示单元。本发明利用上述各模块和单元实现对钢轨几何参数的自动测量、检测和比对,自动化程度高,提高检测效率,实时超限及报表单元自动实时生成检测报表。(The invention relates to a geometric parameter testing system for a groove-shaped rail track of a tramcar, which comprises: the system comprises an orbit detection calculation engine module, a real-time positioning engine module, a contour processing engine module, an image processing engine module, a signal conditioning module, an inspection camera, a two-dimensional laser sensor, an inertial measurement sensor assembly, a positioning assembly, a curve monitoring unit, a real-time overrun and report unit, a line monitoring and image unit and a contour display unit. The invention utilizes the modules and the units to realize automatic measurement, detection and comparison of the geometric parameters of the steel rail, has high automation degree, improves the detection efficiency, and automatically generates a detection report in real time by a real-time overrun and report unit.)

1. The utility model provides a tram groove type rail track geometric parameters test system which characterized in that includes:

the system comprises a track inspection calculation engine module, a real-time positioning engine module, a contour processing engine module, an image processing engine module, a signal conditioning module, an inspection camera, a two-dimensional laser sensor, an inertial measurement sensor assembly, a positioning assembly, a curve monitoring unit, a real-time overrun and report unit, a line monitoring and image unit and a contour display unit, wherein the inertial measurement sensor assembly, the positioning assembly, the two-dimensional laser sensor, the inspection camera, the real-time positioning engine module and the track inspection calculation engine are all connected with the signal conditioning module, the track inspection calculation engine module is respectively connected with the real-time positioning engine module, the contour processing engine module, the curve monitoring unit, the real-time overrun and report unit and the line monitoring and image unit, and the contour processing engine module is connected with the contour display unit and the two-dimensional laser sensor, the image processing engine module is respectively connected with the inspection camera, the line monitoring and image unit, the curve monitoring unit and the real-time overrun and report unit;

the inertial measurement sensor assembly comprises a gyroscope, an acceleration sensor and an inclinometer, and is matched with a two-dimensional laser sensor, a steel rail is scanned by adopting a laser triangulation distance measuring principle, a contour processing engine module is matched to extract and analyze a contour curve, the change of a track gauge is determined, a dynamic track gauge value is calculated and synthesized, and the dynamic track gauge value is output to a track inspection calculation engine module;

the image processing engine module is used for calculating the distance from the two-dimensional laser sensor to any point on the cross section of the track by analyzing camera data and combining the installation angle of the two-dimensional laser sensor based on a laser shooting principle by utilizing the cooperation of the inspection camera and the two-dimensional laser sensor, converting a current frame in an original video stream file captured by the inspection camera into a gray image, performing smooth noise reduction processing on the gray image, reducing the interference of noise points, camera stains and the like on target acquisition, and finally transmitting data to a line monitoring and image unit;

the positioning assembly comprises a speed sensor, a GPS, an RFID and a high-precision photoelectric encoder, the RFID is used for storing track information on a track, the positioning assembly measures the speed of a vehicle body by using the speed sensor, and corrects the high-precision photoelectric encoder by using the RFID to realize the accurate positioning of a line characteristic point and ensure that a vehicle can read transition information on any side to perform mileage automatic calibration when passing through a radio frequency tag;

the signal conditioning module is used for filtering and amplifying signals of the positioning assembly and the inertial measurement sensor, then the signals are interacted with the real-time positioning engine module, and finally data are transmitted to the rail inspection calculation engine module;

the rail inspection calculation engine module carries out comprehensive operation analysis on the signals transmitted to the signal conditioning module by the inertial measurement sensor assembly and the positioning assembly, effective operation and output are carried out, and real-time overrun and timely alarming of a report unit are guaranteed.

2. The system as claimed in claim 1, wherein the two-dimensional laser sensor is a non-contact type laser two-dimensional sensor for precise measurement, and uses the principle of diffuse reflection focusing imaging to measure the rail surface rail flatness and rail wear.

3. The system for testing the geometric parameters of the groove-shaped rail track of the tram as claimed in claim 1, wherein the inspection camera is a high-speed video camera which is used for recording and storing the images of the surface and two sides of the steel rail in real time.

Technical Field

The invention relates to a detection device for a groove-shaped rail of a tramcar, in particular to a geometric parameter testing system for the groove-shaped rail of the tramcar.

Background

The groove-shaped rail track is an important part of the tramcar, needs to bear large load in the working process, plays an intuitive and important role in supporting and guiding the tramcar, and needs to be subjected to geometric parameter measurement. The traditional measurement to tram cell type rail track geometric parameters through artifical way of patrolling, combines omnipotent gauge and on-the-spot observation measurement, has the time-consuming, not accurate scheduling problem.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a geometric parameter testing system for a groove-type rail of a tramcar.

The technical scheme adopted by the invention for solving the technical problems is as follows: a tram groove rail track geometric parameters test system includes: the system comprises a track inspection calculation engine module, a real-time positioning engine module, a contour processing engine module, an image processing engine module, a signal conditioning module, an inspection camera, a two-dimensional laser sensor, an inertial measurement sensor assembly, a positioning assembly, a curve monitoring unit, a real-time overrun and report unit, a line monitoring and image unit and a contour display unit, wherein the inertial measurement sensor assembly, the positioning assembly, the two-dimensional laser sensor, the inspection camera, the real-time positioning engine module and the track inspection calculation engine are all connected with the signal conditioning module, the track inspection calculation engine module is respectively connected with the real-time positioning engine module, the contour processing engine module, the curve monitoring unit, the real-time overrun and report unit and the line monitoring and image unit, and the contour processing engine module is connected with the contour display unit and the two-dimensional laser sensor, the image processing engine module is respectively connected with the inspection camera, the line monitoring and image unit, the curve monitoring unit and the real-time overrun and report unit;

the inertial measurement sensor assembly comprises a gyroscope, an acceleration sensor and an inclinometer, and is matched with a two-dimensional laser sensor, a steel rail is scanned by adopting a laser triangulation distance measuring principle, a contour processing engine module is matched to extract and analyze a contour curve, the change of a track gauge is determined, a dynamic track gauge value is calculated and synthesized, and the dynamic track gauge value is output to a track inspection calculation engine module;

the image processing engine module is used for calculating the distance from the two-dimensional laser sensor to any point on the cross section of the track by analyzing camera data and combining the installation angle of the two-dimensional laser sensor based on a laser shooting principle by utilizing the cooperation of the inspection camera and the two-dimensional laser sensor, converting a current frame in an original video stream file captured by the inspection camera into a gray image, performing smooth noise reduction processing on the gray image, reducing the interference of noise points, camera stains and the like on target acquisition, and finally transmitting data to a line monitoring and image unit;

the positioning assembly comprises a speed sensor, a GPS, an RFID and a high-precision photoelectric encoder, the RFID is used for storing track information on a track, the positioning assembly measures the speed of a vehicle body by using the speed sensor, and corrects the high-precision photoelectric encoder by using the RFID to realize the accurate positioning of a line characteristic point and ensure that a vehicle can read transition information on any side to perform mileage automatic calibration when passing through a radio frequency tag;

the signal conditioning module is used for filtering and amplifying signals of the positioning assembly and the inertial measurement sensor, then the signals are interacted with the real-time positioning engine module, and finally data are transmitted to the rail inspection calculation engine module;

the rail inspection calculation engine module carries out comprehensive operation analysis on the signals transmitted to the signal conditioning module by the inertial measurement sensor assembly and the positioning assembly, effective operation and output are carried out, and real-time overrun and timely alarming of a report unit are guaranteed.

In the design, the modules and the units are utilized to realize automatic measurement, detection and comparison of the geometric parameters of the steel rail, the automation degree is high, the detection efficiency is improved, and the real-time overrun and report unit automatically generates a detection report in real time.

As a further improvement of the design, the two-dimensional laser sensor is a non-contact type laser two-dimensional sensor for accurate measurement, and the sensor is used for measuring the rail surface rail flatness and rail abrasion loss by utilizing the diffuse reflection focusing imaging principle, is high in detection speed and is not easy to damage.

As a further improvement of the design, the inspection camera is a high-speed camera and is used for recording and storing images of the surface and two sides of the steel rail in real time, and the detection efficiency is improved.

The invention has the beneficial effects that: the invention utilizes the modules and the units to realize automatic measurement, detection and comparison of the geometric parameters of the steel rail, has high automation degree, improves the detection efficiency, and automatically generates a detection report in real time by a real-time overrun and report unit.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram of a geometric parameter testing system for a tramcar groove rail track of the invention.

Detailed Description

The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided only for the purpose of illustrating the present invention and are not to be construed as limiting the present invention.

Example (b): a tram groove rail track geometric parameters test system includes: the system comprises a track inspection calculation engine module, a real-time positioning engine module, a contour processing engine module, an image processing engine module, a signal conditioning module, an inspection camera, a two-dimensional laser sensor, an inertial measurement sensor assembly, a positioning assembly, a curve monitoring unit, a real-time overrun and report unit, a line monitoring and image unit and a contour display unit, wherein the inertial measurement sensor assembly, the positioning assembly, the two-dimensional laser sensor, the inspection camera, the real-time positioning engine module and the track inspection calculation engine are all connected with the signal conditioning module, the track inspection calculation engine module is respectively connected with the real-time positioning engine module, the contour processing engine module, the curve monitoring unit, the real-time overrun and report unit and the line monitoring and image unit, and the contour processing engine module is connected with the contour display unit and the two-dimensional laser sensor, the image processing engine module is respectively connected with the inspection camera, the line monitoring and image unit, the curve monitoring unit and the real-time overrun and report unit;

the inertial measurement sensor assembly comprises a gyroscope, an acceleration sensor and an inclinometer, and is matched with a two-dimensional laser sensor, a steel rail is scanned by adopting a laser triangulation distance measuring principle, a contour processing engine module is matched to extract and analyze a contour curve, the change of a track gauge is determined, a dynamic track gauge value is calculated and synthesized, and the dynamic track gauge value is output to a track inspection calculation engine module;

the image processing engine module is used for calculating the distance from the two-dimensional laser sensor to any point on the cross section of the track by analyzing camera data and combining the installation angle of the two-dimensional laser sensor based on a laser shooting principle by utilizing the cooperation of the inspection camera and the two-dimensional laser sensor, converting a current frame in an original video stream file captured by the inspection camera into a gray image, performing smooth noise reduction processing on the gray image, reducing the interference of noise points, camera stains and the like on target acquisition, and finally transmitting data to a line monitoring and image unit;

the positioning assembly comprises a speed sensor, a GPS, an RFID and a high-precision photoelectric encoder, the RFID is used for storing track information on a track, the positioning assembly measures the speed of a vehicle body by using the speed sensor, and corrects the high-precision photoelectric encoder by using the RFID to realize the accurate positioning of a line characteristic point and ensure that a vehicle can read transition information on any side to perform mileage automatic calibration when passing through a radio frequency tag;

the signal conditioning module is used for filtering and amplifying signals of the positioning assembly and the inertial measurement sensor, then the signals are interacted with the real-time positioning engine module, and finally data are transmitted to the rail inspection calculation engine module;

the rail inspection calculation engine module carries out comprehensive operation analysis on the signals transmitted to the signal conditioning module by the inertial measurement sensor assembly and the positioning assembly, effective operation and output are carried out, and real-time overrun and timely alarming of a report unit are guaranteed.

In the design, the modules and the units are utilized to realize automatic measurement, detection and comparison of the geometric parameters of the steel rail, the automation degree is high, the detection efficiency is improved, and the real-time overrun and report unit automatically generates a detection report in real time.

As a further improvement of the design, the two-dimensional laser sensor is a non-contact type laser two-dimensional sensor for accurate measurement, and the sensor is used for measuring the rail surface rail flatness and rail abrasion loss by utilizing the diffuse reflection focusing imaging principle, is high in detection speed and is not easy to damage.

As a further improvement of the design, the inspection camera is a high-speed camera and is used for recording and storing images of the surface and two sides of the steel rail in real time, and the detection efficiency is improved.

The geometrical parameter detection mode and principle of the tramcar groove rail track part are as follows:

1. gauge and gauge rate of change:

the gauge is the minimum distance between two steel rail working edges within 16mm below the tread of the steel rail. The two-dimensional laser sensor detects the track gauge with wheel load at the position close to the wheel. And simultaneously calculating the track gauge change rate by track gauge detection.

2. And (3) rail direction:

the track direction is the transverse unevenness of the track gauge points on the inner sides of the steel rails along the extension direction of the rails. The numerical value that measures through inertial measurement sensor subassembly when the rail is to measuring obtains the horizontal unsmooth and unsmooth of rail detection roof beam after the space is resolved, obtains the relative spatial relationship between rail detection roof beam and the rail through two-dimensional laser sensor once more, then can calculate the horizontal unsmooth and unsmooth of track medial surface.

3. Height of the steel rail:

the height of the steel rail refers to the vertical irregularity of the top surface of the steel rail along the extension direction. And data calculation is obtained through the inertial measurement sensor assembly during the height measurement of the steel rail. And calculating to obtain the vertical irregularity of the rail detection beam through integral operation and correction, obtaining the relative spatial relationship between the rail detection beam and the top surface of the steel rail through a two-dimensional laser sensor, and finally calculating the irregularity of the top surface of the steel rail.

4. Super-height and triangular pit of steel rail:

the superelevation of the steel rail is the height difference of the top surfaces of the left and right steel rails on the same cross section on the curve relative to the horizontal plane; obtaining the super-high slope amount through logic operation according to a specified set ultrahigh value through an inertia measurement sensor assembly; the triangular pit is the distortion of the top surfaces of the left rail and the right rail relative to the plane of the rail, the contour curve is extracted and analyzed by the camera shooting handle of the inspection camera and the contour processing engine module, and finally the numerical value change of the triangular pit is determined by the gyroscope.

5. Curves and rate of change of curvature:

the steel rail curvature measurement adopts a gyroscope in an inertial measurement sensor assembly to obtain the angular speed of train operation, and obtains curvature parameters after compensation is carried out through an inclinometer. And finally, measuring the rotation quantity of the gyroscope when the vehicle passes through, and calculating the change values of the rail inspection vehicle curve and the corresponding central angle after the curvature change rate passes through the curve of 30 meters.

6. Vehicle body vibration acceleration:

the vehicle body vibration acceleration logically calculates the data of the vehicle body in motion and the static data through a positioning component and an inertia measurement sensor component in a real-time positioning engine module, and finally obtains a change value.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.