CN217149756U - Track geometry shape and position change monitoring device - Google Patents
Track geometry shape and position change monitoring device Download PDFInfo
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- CN217149756U CN217149756U CN202121418338.0U CN202121418338U CN217149756U CN 217149756 U CN217149756 U CN 217149756U CN 202121418338 U CN202121418338 U CN 202121418338U CN 217149756 U CN217149756 U CN 217149756U
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Abstract
The utility model discloses a track geometric shape and position change monitoring device, which is provided with a laser for emitting line structure light for irradiating the rail jaw and the rail waist of a steel rail; the high-speed camera is used for acquiring light bar images of steel rails on two sides of the track before a detection vehicle passes through the steel rails and light bar images of the steel rails when the detection vehicle passes through the steel rails in real time; the light bar image is an image of the steel rail profile under the irradiation of line structure light; the wireless transmission module is connected with the high-speed camera and used for sending light strip images of steel rails on two sides of the track before a vehicle passes through the steel rails and light strip images of the steel rails when the vehicle passes through the steel rails, compared with the prior art, analysis of wheel load effect in the dynamic detection process of track geometric state parameters can be further realized, the problem that due to the fact that wheel load effect cannot be analyzed under the prior art, a worker cannot improve the difference of measurement data of a track dynamic detection device and a track static detection device is avoided, and the precision of track geometric state parameter detection can be improved in an auxiliary mode.
Description
Technical Field
The utility model relates to a high-speed railway infrastructure detects technical field, especially relates to track geometry morpheme change monitoring devices.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
The rail transit infrastructure detection is an important means for guiding maintenance and guarantee of operation safety. With the increasing use of various detection devices of infrastructure, the requirements on the accuracy of the detection devices and the consistency of detection data are continuously improved; meanwhile, due to the difference of various detection means and detection equipment, the consistency of detection results has great difference, and the implementation of quantity value transmission and traceability work of the detection system is greatly influenced.
The detection of the geometric state parameters of the track is divided into a dynamic detection method and a static detection method. The dynamic detection method is characterized in that vehicle-mounted detection equipment mounted on specific detection vehicles such as a common passenger car or a motor train unit is utilized to carry out on-load detection on the track state under the operation condition, the method has the advantages of short time for occupying a skylight and high detection efficiency, can restore the situation of railway operation through data to a higher degree, and becomes a main mode for detecting the geometrical state of the railway track in China.
The static detection method is to use equipment such as a track inspection tester to carry out fine detection on a line under the condition of no wheel load action, and although the detection precision is high, the detection speed is slow.
At present, although the dynamic detection precision of the track is greatly improved in China, due to the fact that dynamic and static detection adopts different measurement methods, a dynamic measurement method obtains track geometric data under the action of wheel load, and a static measurement method obtains the track geometric data under the action of no wheel load, the wheel load action can cause difference of dynamic and static detection results, reliability and effectiveness of the detection results are reduced, and great trouble is brought to tracing, calibrating and further data mining work of a detection system.
However, at the present stage, there is no device capable of analyzing the wheel load effect during the track geometric state parameter detection process, so that the track dynamic detection and the track static detection cannot be improved at the present stage, and thus it is difficult to improve the precision of the track geometric state parameter detection.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a track geometry morpheme changes monitoring devices for the morpheme change to track geometry detects, supplementary precision that improves track geometric parameters dynamic verification, and the device includes:
a laser for emitting line structured light that illuminates the rail jaw and web of the rail;
the high-speed camera is used for acquiring light bar images of steel rails on two sides of the track before a detection vehicle passes through the steel rails and light bar images of the steel rails when the detection vehicle passes through the steel rails in real time; the light bar image is an image of the steel rail profile under the irradiation of line structure light;
and the data transmitting antenna is connected with the high-speed camera and used for transmitting the light strip image of the steel rail on two sides of the track before the detection vehicle passes through the steel rail and the light strip image of the steel rail when the detection vehicle passes through the steel rail.
In the embodiment of the utility model, a laser is arranged for emitting line structure light for irradiating the rail jaw and the rail waist of the steel rail; arranging a high-speed camera for acquiring light strip images of steel rails on two sides of a track before a detection vehicle passes through the steel rails and light strip images of the steel rails when the detection vehicle passes through the steel rails in real time; the light bar image is an image of the steel rail profile under the irradiation of line structure light; the data sending antenna is arranged and connected with the high-speed camera and used for sending light strip images of steel rails on two sides of the track before the detection vehicle passes through the steel rails and light strip images of the steel rails when the detection vehicle passes through the steel rails, compared with the prior art, the analysis of the wheel load effect in the track geometric state parameter detection process can be further realized by collecting the light strip images of the steel rails before the detection vehicle passes through the steel rails and the light strip images of the steel rails when the detection vehicle passes through the steel rails, the problem that in the prior art, the wheel load effect cannot be analyzed, so that a worker cannot improve the difference between track dynamic detection and track static detection data is solved, follow-up adjustment of a device for track dynamic detection and track static detection is facilitated according to the light strip images, and the precision of track geometric state parameter detection is indirectly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:
fig. 1 is a schematic structural diagram of a track geometry position change monitoring device in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a track geometry position change monitoring device in an embodiment of the present invention;
fig. 3 is a schematic view of an embodiment of the present invention, illustrating an operating state of a track geometry position change monitoring device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
The rail transit infrastructure detection is an important means for guiding maintenance and guarantee of operation safety. With the increasing use of various detection devices of infrastructure, the requirements on the accuracy of the detection devices and the consistency of detection data are continuously improved; meanwhile, due to the difference of various detection means and detection equipment, the consistency of detection results has great difference, and the implementation of quantity value transmission, traceability and calibration work of the detection system is greatly influenced. The detection of the geometric state parameters of the track is divided into a dynamic detection method and a static detection method. The dynamic detection method is characterized in that vehicle-mounted detection equipment mounted on specific detection vehicles such as a common passenger car or a motor train unit is utilized to carry out on-load detection on the track state under the operation condition, the method has the advantages of short time for occupying a skylight and high detection efficiency, can restore the situation of railway operation through data to a higher degree, and becomes a main mode for detecting the geometrical state of the railway track in China. The static detection method is to use equipment such as a track inspection tester to carry out fine detection on a line under the condition of no wheel load action, and although the detection precision is high, the detection speed is slow.
At present, although the dynamic detection precision of the track is greatly improved in China, due to the fact that dynamic and static detection adopts different measurement methods, a dynamic measurement method obtains track geometric data under the action of wheel load, and a static measurement method obtains the track geometric data under the action of no wheel load, the wheel load action can cause difference of dynamic and static detection results, reliability and effectiveness of the detection results are reduced, and great trouble is brought to tracing, calibrating and further data mining work of a detection system. Therefore, in order to improve the dynamic detection capability of the track geometry and analyze the influence of the wheel load effect on the track geometry measurement result, it is extremely necessary to compensate the difference of the track dynamic and static detection data.
In order to solve the above-mentioned effect of receiving the wheel load among the current track detection technology, lead to track geometry to move, the problem that static testing result has great difference, the embodiment of the utility model provides a track geometry morpheme changes monitoring devices for improve the precision that track geometry state parameter detected, as shown in fig. 1, this track geometry morpheme changes monitoring devices can include:
the laser 1 is used for emitting line structured light for irradiating the rail jaw and the rail waist of the steel rail;
the high-speed camera 2 is used for acquiring light bar images of steel rails on two sides of a track before a detection vehicle passes through the steel rails and light bar images of the steel rails when the detection vehicle passes through the steel rails in real time; the light bar image is an image of the outline of the steel rail under the irradiation of line structure light;
and the data transmitting antenna 3 is connected with the high-speed camera 2 and is used for transmitting the light strip image of the steel rail on two sides of the track before the detection vehicle passes through the steel rail and the light strip image of the steel rail when the detection vehicle passes through the steel rail.
In the embodiment of the utility model, a laser is arranged for emitting line structure light for irradiating the rail jaw and the rail waist of the steel rail; arranging a high-speed camera for acquiring light strip images of steel rails on two sides of a track before a detection vehicle passes through the steel rails and light strip images of the steel rails when the detection vehicle passes through the steel rails in real time; the light bar image is an image of the outline of the steel rail under the irradiation of line structure light; the data sending antenna is arranged and connected with the high-speed camera and used for sending light strip images of steel rails on two sides of the track before the detection vehicle passes through the steel rails and light strip images of the steel rails when the detection vehicle passes through the steel rails, compared with the prior art, the analysis of the wheel load effect in the track geometric state parameter detection process can be further realized by collecting the light strip images of the steel rails before the detection vehicle passes through the steel rails and the light strip images of the steel rails when the detection vehicle passes through the steel rails, the problem that in the prior art, the wheel load effect cannot be analyzed, so that a worker cannot improve the difference between track dynamic detection and track static detection data is solved, follow-up adjustment of a device for track dynamic detection and track static detection is facilitated according to the light strip images, and the precision of track geometric state parameter detection is indirectly improved.
In one embodiment, by arranging the laser 1, linear structured light can be emitted to irradiate the jaw and web of the steel rail; by arranging the high-speed camera 2, light bar images of steel rails on two sides of a track before a detection vehicle passes through the steel rails and light bar images of the steel rails when the detection vehicle passes through the steel rails can be collected in real time; the light bar image is an image of the outline of the rail under the irradiation of the line-structured light.
In an embodiment, the line structured light may be emitted by the laser 1, and the light bar image may be an image illuminated by the line structured light emitted by the laser 1; the light strip images of the steel rails on the two sides of the track before the detection vehicle passes through the steel rails and the light strip images of the steel rails when the detection vehicle passes through the steel rails can be obtained by shooting through the light speed camera 3.
In an embodiment, the embodiment of the present invention provides a track geometry position change monitoring device, which may further include: and the synchronization unit is used for controlling the plurality of high-speed cameras 2 and synchronously acquiring the light strip images of the steel rails on the two sides of the track before the detection vehicle passes through and the light strip images of the steel rails when the detection vehicle passes through.
In the embodiment, under the control of the synchronization unit, modulated light bar images of the rails on both sides of the track are simultaneously acquired by the high-speed camera 2.
In the embodiment, the staff can further realize the analysis of the wheel load effect in the track geometric state dynamic parameter detection process by collecting the light strip image of the steel rail before the detection vehicle passes through and the light strip image of the steel rail when the detection vehicle passes through, so that the problem that the staff cannot improve the track dynamic detection and track static detection device due to the incapability of wheel load effect in the prior art is solved, the follow-up adjustment of the track dynamic detection and track static detection device according to the light strip image is facilitated, and the detection precision of the track geometric state parameter is indirectly improved.
In an embodiment, an embodiment of the present invention provides a track geometry position change monitoring device, as shown in fig. 1, which may further include:
the inner casing 5, the laser 1, the high-speed camera 2, and the data transmission antenna 3 are provided on the inner casing 5.
In the above embodiment, the inner protective casing 5 can protect the track geometry change monitoring device from the splash impact of the sundries such as stones during the running of the train.
In one embodiment, the laser 1, high speed camera 2, data transmission antenna 3, may be mounted in an inner housing 5 as shown in FIG. 1.
In one embodiment, the laser 1 and the high speed camera 2 may be a single laser camera assembly, such as the laser camera assembly of KEYANCE Keynes. The laser camera shooting assembly is used for emitting line structure light for irradiating the rail jaw and the rail web of the steel rail, and is also used for collecting light bar images of the steel rails on two sides of the rail before the detection vehicle passes through and light bar images of the steel rails when the detection vehicle passes through in real time.
In an embodiment, an embodiment of the present invention provides a track geometry position change monitoring device, as shown in fig. 1, which may further include: an acceleration sensor 4 for detecting acceleration data generated by the apparatus upon detection of passage of the vehicle.
In an embodiment, the acceleration sensor 4 may be mounted in an inner housing 5 as shown in fig. 1. By providing the acceleration sensor 4, it is possible to detect acceleration data generated by the apparatus when the passage of the vehicle is detected. The working personnel can determine the vibration impact of the device when the detection vehicle passes through according to the value of the acceleration data, so that the working personnel can be helped to determine whether the working state of the track geometric form and position change monitoring device is normal.
In an embodiment, an embodiment of the present invention provides a track geometry position change monitoring device, as shown in fig. 2, which may further include:
and an equipment housing 7, wherein the inner protective casing is provided in the equipment housing 7.
In the above embodiment, the device housing may be a collecting device protective housing, and the device housing may protect the track geometry change monitoring device from splashing impact of sundries such as stones during the operation of the train.
In an embodiment, an embodiment of the present invention provides a track geometry and position change monitoring device, as shown in fig. 2, which may further include:
and a fixing bolt 8, wherein the fixing bolt 8 is used for fixing the inner casing on the equipment shell 7.
In the embodiment, by arranging the fixing bolt 8, the inner protective shell can be stably fixed in the equipment shell, and the stability of the track geometric shape and position change monitoring device is ensured.
In an embodiment, an embodiment of the present invention provides a track geometry position change monitoring device, as shown in fig. 2, which may further include:
and the ground fixing pieces 6 are rigidly connected with the roadbed of the steel rails on the two sides of the track, and are used for fixing the equipment shell 7 on the two sides of the track.
In one embodiment, the ground fixture 6 is rigidly connected to the equipment housing 7.
In one embodiment, the equipment shell 7 can be fixed on two sides of the track by arranging the ground fixing piece 6, so that the stability of the track geometric position change monitoring device is ensured.
In an embodiment, an embodiment of the present invention provides a track geometry position change monitoring device, as shown in fig. 2, which may further include:
and the adjusting bolt 9 is connected with the laser and used for controlling the incident angle of the line structure light emitted by the laser relative to the steel rails on the two sides of the track.
In the embodiment, through control adjusting bolt 9, the incident angle of above-mentioned structured light relative to the rail of track both sides can be adjusted, and the staff of being convenient for regulates and control this track geometry morpheme change monitoring devices, the convenience when having promoted control track geometry morpheme change monitoring devices.
In one embodiment, as shown in fig. 3, the track geometric shape and position change monitoring device may be installed on both sides of the track 10 through ground firmware, and perform real-time monitoring on the wheels 11 to confirm the passing of the vehicle ahead, and enable the track geometric shape and position change monitoring device to collect the light strip image of the rail when the track 10 detects the passing of the vehicle; the light bar image is an image of the outline of the rail under the irradiation of the line-structured light.
In an embodiment, the embodiment of the present invention provides a track geometry position change monitoring device, which may further include:
and the power supply is respectively connected with the laser, the high-speed camera and the data transmitting antenna and used for supplying power.
In the embodiment, the power supply is arranged, so that the power supply for the laser, the high-speed camera and the data transmitting antenna can be realized, and the normal work of the track geometric shape and position change monitoring device is ensured.
In an embodiment, the embodiment of the present invention provides a track geometry position change monitoring device, which may further include:
and the monitoring camera is used for monitoring the irradiation position of the line structured light emitted by the laser.
In the embodiment, through setting up the monitoring camera, help the staff to the irradiation position of the line structure light that track geometry form and position change monitoring devices's laser sent, monitor and adjust.
In one embodiment, the data transmission antenna is a 4G data transmission antenna and/or a 5G data transmission antenna.
In the embodiment, the data transmitting antenna can transmit the light bar images of the steel rails on two sides of the track collected in real time before the detection vehicle passes through the steel rails and the light bar images of the steel rails when the detection vehicle passes through the steel rails in a 4G and/or 5G mode.
In the embodiment of the utility model, a laser is arranged for emitting line structure light for irradiating the rail jaw and the rail waist of the steel rail; arranging a high-speed camera for acquiring light strip images of steel rails on two sides of a track before a detection vehicle passes through the steel rails and light strip images of the steel rails when the detection vehicle passes through the steel rails in real time; the light bar image is an image of the outline of the steel rail under the irradiation of line structure light; the data sending antenna is arranged and connected with the high-speed camera and used for sending light strip images of steel rails on two sides of the track before the detection vehicle passes through the steel rails and light strip images of the steel rails when the detection vehicle passes through the steel rails, compared with the prior art, the analysis of the wheel load effect in the track geometric state parameter detection process can be further realized by collecting the light strip images of the steel rails before the detection vehicle passes through the steel rails and the light strip images of the steel rails when the detection vehicle passes through the steel rails, the problem that in the prior art, the wheel load effect cannot be analyzed, so that a worker cannot improve the difference between track dynamic detection and track static detection data is solved, follow-up adjustment of a device for track dynamic detection and track static detection is facilitated according to the light strip images, and the precision of track geometric state parameter detection is indirectly improved.
The staff can pass through the utility model provides a track geometry changes monitoring devices, the light strip image of rail before the detection vehicle passes through of rail on both sides of track is gathered in real time to obtain, and the light strip image of rail when detecting the vehicle and passing through, and then can carry out the contrast calculation with the light strip image of rail when detecting the vehicle and passing through, the amount of movement and the amount of slope of rail when detecting the vehicle and passing through of rail on both sides of track; and performing real-time motion compensation on the track geometric state dynamic detection system according to the movement amount and the inclination amount of the steel rails on the two sides of the track when the detection vehicle passes through to obtain compensated track geometric state dynamic detection data.
Further, when comparing and calculating the light strip image of the steel rail before the detection vehicle passes through the steel rails on the two sides of the track with the light strip image of the steel rail when the detection vehicle passes through the steel rails on the two sides of the track to obtain the moving amount and the inclination amount of the steel rail before the detection vehicle passes through the steel rails on the two sides of the track, the staff can perform light strip center extraction processing and coordinate change processing on the light strip image of the steel rail before the detection vehicle passes through the steel rails on the two sides of the track and the light strip image of the steel rail when the detection vehicle passes through the steel rails, so as to obtain the space physical coordinate of the jaw shape of the track; based on a track profile matching algorithm, the spatial physical coordinates of the track jaw profile and the pre-acquired standard track profile are subjected to matching analysis, and the moving amount and the inclination amount of the steel rails on two sides of the track when the detection vehicle passes are obtained.
Furthermore, the staff can carry out real-time motion compensation on the track geometric state dynamic detection system according to the movement amount and the inclination amount of the steel rails on the two sides of the track when the detection vehicle passes through, so as to obtain compensated track geometric state dynamic detection data.
The staff can obtain the moving amount and the inclination amount of the steel rails on the two sides of the track when the detection vehicle passes by comparing the light bar image of the steel rail before the detection vehicle passes by the steel rails on the two sides of the track with the light bar image of the steel rail when the detection vehicle passes by; the dynamic detection system for the track geometric state is subjected to real-time motion compensation according to the movement amount and the inclination amount of the steel rails on the two sides of the track when a vehicle passes through the detection system, and compensated dynamic detection data for the track geometric state are obtained, so that the quantitative calculation of the wheel load action borne by the dynamic detection data for the track geometric state is realized by calculating the movement amount and the inclination amount of the steel rails on the two sides of the track when the vehicle passes through the detection system, the dynamic compensation for the dynamic detection system for the track geometric state can be further realized according to the movement amount and the inclination amount of the steel rails on the two sides of the track when the vehicle passes through the detection system, the problem that the detection precision of the dynamic detection system for the track geometric state is low due to the influence of the wheel load action cannot be avoided in the prior art is solved, the dynamic compensation for the dynamic detection system for the track geometric state is realized, and the detection precision of the dynamic detection system for the track geometric state is improved.
As described above, the staff can pass the utility model provides a track geometry form and position change monitoring devices, realizes the monitoring to track geometry dynamic and static measurement difference, provides data support for analyzing track geometry dynamic and static measurement difference, improves the compensation ability of track geometry detection data, is favorable to improving the repeatability, the accuracy of track geometry dynamic detection result; the track geometry dynamic detection system is calibrated by combining the track geometry dynamic detection system with high-precision track geometry static detection equipment as a measurement standard, so that the traceability relation between the track geometry dynamic detection system and the national measurement standard is favorably established, and the track geometry detection precision is improved.
Claims (10)
1. A track geometry change monitoring device, comprising:
a laser for emitting line structured light that illuminates the rail jaw and web of the rail;
the high-speed camera is used for acquiring light bar images of steel rails on two sides of the track before a detection vehicle passes through the steel rails and light bar images of the steel rails when the detection vehicle passes through the steel rails in real time; the light bar image is an image of the steel rail profile under the irradiation of line structure light;
and the data transmitting antenna is connected with the high-speed camera and used for transmitting the light strip image of the steel rail on two sides of the track before the detection vehicle passes through the steel rail and the light strip image of the steel rail when the detection vehicle passes through the steel rail.
2. The apparatus of claim 1, further comprising: an acceleration sensor for detecting acceleration data generated by the apparatus upon detection of passage of the vehicle.
3. The apparatus of claim 1, further comprising: the laser, the high-speed camera and the data transmitting antenna are arranged on the inner protective shell.
4. The apparatus of claim 3, further comprising: the equipment shell, interior protective housing body locates in the equipment shell.
5. The apparatus of claim 4, further comprising: and the fixing bolt is used for fixing the inner protective shell on the equipment shell.
6. The apparatus of claim 4, further comprising: and the ground fixing pieces are rigidly connected with the roadbed of the steel rails on the two sides of the track and are used for fixing the equipment shell on the two sides of the track.
7. The apparatus of claim 1, further comprising: and the adjusting bolt is connected with the laser and is used for controlling the incident angle of the structured light emitted by the laser relative to the steel rails on the two sides of the track.
8. The apparatus of claim 1, further comprising: and the power supply is respectively connected with the laser, the high-speed camera and the data transmitting antenna and used for supplying power.
9. The apparatus of claim 1, further comprising: and the monitoring camera is used for monitoring the irradiation position of the line structured light emitted by the laser.
10. The apparatus of claim 1, wherein the data transmission antenna is a 4G data transmission antenna and/or a 5G data transmission antenna.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121418338.0U CN217149756U (en) | 2021-06-24 | 2021-06-24 | Track geometry shape and position change monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121418338.0U CN217149756U (en) | 2021-06-24 | 2021-06-24 | Track geometry shape and position change monitoring device |
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| CN217149756U true CN217149756U (en) | 2022-08-09 |
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| CN202121418338.0U Active CN217149756U (en) | 2021-06-24 | 2021-06-24 | Track geometry shape and position change monitoring device |
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| CN (1) | CN217149756U (en) |
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- 2021-06-24 CN CN202121418338.0U patent/CN217149756U/en active Active
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