CN216833682U - Linear detection device of railway contact net twine - Google Patents
Linear detection device of railway contact net twine Download PDFInfo
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- CN216833682U CN216833682U CN202123284311.XU CN202123284311U CN216833682U CN 216833682 U CN216833682 U CN 216833682U CN 202123284311 U CN202123284311 U CN 202123284311U CN 216833682 U CN216833682 U CN 216833682U
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Abstract
The utility model relates to a linear detection device of railway contact net twine, this detection device is including setting up contact net detection device, distance detection device and the data processor on detecting the car, wherein contact net detection device sets up in the middle part of detecting the car, and its direction of detection is towards the linear of contact net twine in order to scan contact net twine, and distance detection device installs the walking mileage in order to detect the wheel in the wheel position of detecting the car, and the data processor is connected respectively with contact net detection device and distance detection device and constitutes data interaction; an optical prism is arranged on the detection vehicle. The utility model has the advantages that: the efficiency is high by a continuous scanning mode after one-time adjustment, the measurement precision is improved, and a high-precision distance measuring device is configured to realize mileage matching; the main body component is arranged on the measuring vehicle, can synchronously detect other track linear parameters simultaneously, eliminates the measuring time difference, achieves high precision of measuring results and high reliability, outputs various results by one-time movement, and has higher efficiency.
Description
Technical Field
The utility model belongs to the technical field of the railway equipment maintenance technique and specifically relates to a linear detection device of railway contact net twine.
Background
The linear detection device of the existing railway contact network is mainly a fixed-distance single-point type, and the detected parameters are based on the track linear shape. The method comprises the steps of installing a laser range finder on a track with a certain distance (usually, the distance between adjacent hanging strings or positioning points is 7-8 meters) at a certain distance from a certain mileage known point, measuring the slant distance and the angle of a contact wire above the track after adjustment, recording data, and then processing the data by combining other measurement results, such as the measurement results of track height, track distance and the like, to obtain the linear measurement result and the deviation of a contact network line. The device can not well draw the real continuous line shape of the overhead contact system due to large discrete intervals of the measuring points, and the space line shape numerical value is based on the track line shape, so that the measuring parameters of the device also lose significance when the track line shape changes.
Disclosure of Invention
The utility model aims at providing a linear detection device of railway contact net twine according to above-mentioned prior art not enough to through the mode of continuous scanning to the III stake points of bearing rail platform or track control net CP are the benchmark of referring to, and the spatial position parameter that once detects and to take notes whole contact net twine realizes its unified with the linear correspondence of track in the space-time.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a linear detection device of railway contact net twine, includes the detection car that can walk along railway steel rail, its characterized in that: the detection device comprises a contact net detection device, a distance detection device and a data processor, wherein the contact net detection device is arranged on the detection vehicle, the detection direction of the contact net detection device is towards a contact net line so as to scan the line shape of the contact net line, the distance detection device is arranged at the position of a wheel of the detection vehicle so as to detect the travelling mileage of the wheel, and the data processor is respectively connected with the contact net detection device and the distance detection device to form data interaction; an optical prism is arranged on the detection vehicle.
The contact net detection device comprises a laser radar sensor, and the detection direction of the laser radar sensor faces to the contact net wire.
The data processor comprises a single chip microcomputer and an output memory, the single chip microcomputer is connected with the contact net detection device and the distance detection device, the output memory is connected with the single chip microcomputer, and the output memory is provided with an external interface.
The detection device further comprises a total station, and the total station is used for positioning the detection vehicle according to the CP III pile point of the track control network.
The detection device further comprises a handheld controller, and the handheld controller is connected with the data processor to form data interaction.
The utility model has the advantages that:
1) the efficiency is high by a continuous scanning mode after one-time adjustment, the measurement precision is improved by a smaller measurement interval (less than 0.1 meter), and a high-precision distance measuring device is configured to realize mileage matching;
2) the main body component is arranged on the measuring vehicle, can synchronously detect other track linear parameters simultaneously, eliminates the measuring time difference, achieves high measuring result precision and high reliability, outputs various results by one-time movement, and has higher efficiency;
3) each track control network (CP III) pile point has an independent coordinate, a total station mode is adopted, prism coordinates arranged on a detection trolley can be collected through a total station in a free station setting mode, then track center coordinates are calculated by combining parameters of the trolley, the relative position of a contact network cable to a track center line is measured through a radar detection device, and the spatial position of the contact network cable is mapped to a reference datum of the track control network (CP III) from a reference datum based on a track through a certain mathematical model, so that the measurement result has higher reference.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the middle buffer module of the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-2, the symbols in the figures are respectively represented as:
the system comprises a contact net detection device 100, a distance detection device 200, a data processor 300 and a detection vehicle 400;
the system comprises a laser radar sensor 10, an optical prism 20, a total station 30, a track control network CP III pile point 40, wheels 50, a sensor 60, a single chip microcomputer 70, an output memory 80 and a handheld controller 90.
Example (b): referring to fig. 1 and 2, the device for detecting the line shape of the railway contact network line in the present embodiment is used for detecting the line shape of the railway contact network line.
Specifically, as shown in fig. 1 and 2, the main body of the detection device in this embodiment includes a detection vehicle 400, and wheels 50 are provided on both sides of the detection vehicle 400, respectively, and the wheels 50 can be mounted on the railway rails so that the detection vehicle 400 can travel in the track direction of the railway rails, thereby detecting the line shape of the contact network above the railway rails.
A contact net detection device 100 is arranged in the middle of a transverse frame support of the detection vehicle 400, the contact net detection device 100 comprises a laser radar sensor 10, and the detection direction of the laser radar sensor 10 faces upwards to align with a contact net wire; in use, the lidar sensor 10 scans the contacting web line at a speed to detect its line shape.
A distance detection device 200 is arranged on the longitudinal support on one side of the frame of the detection vehicle 400, the distance detection device 200 comprises a sensor 60, and the sensor 60 is used for detecting the moving distance of the wheel 50, namely the running mileage of the detection vehicle 400. In the present embodiment, the sensor 60 may be a mileage sensor.
A data processor 300 is arranged on the longitudinal support at one side of the frame of the detection vehicle 400, and the data processor 300 comprises a single chip microcomputer 70 and an output memory 80. The single chip microcomputer 70 is connected to the overhead line system detection device 100 and the distance detection device 200, so that the single chip microcomputer 70 can control the operation of the overhead line system detection device 100 and the distance detection device 200, and meanwhile, data interaction is formed to receive detection data of the overhead line system detection device 100 and the distance detection device 200. The output memory 80 is connected with the singlechip 70 to export data; when used, the output memory 80 may be provided with a variety of external interfaces for use, such as an external interface compatible with storage media such as an SD card, a U disk, and the like.
An optical prism 20 is further arranged on the frame transverse support of the detection vehicle 400, and the optical prism 20 is used for being matched with the total station 30 to realize the spatial positioning of the detection vehicle 400 in the total station mode, so that the spatial position of the detection vehicle 400 is based on the CP III pile point 40 of the track control network, and the linear measurement structure of the contact network line is more referential.
In this embodiment, the detection apparatus further includes a handheld controller 90, and the handheld controller 90 is in wireless signal connection with the single chip microcomputer 70 and forms data interaction, so that a technician can perform data transmission on the single chip microcomputer 70 through the handheld controller 90 and perform corresponding control.
When the embodiment is used, the method comprises the following steps:
1) when the detection is started, the detection vehicle 400 is moved, and the center of a beam of the detection vehicle 400 perpendicular to the direction of the steel rail is overlapped with the center of a rail bearing platform with known mileage, so that the initial position of the detection vehicle is positioned; or the total station 30 controls the positioning starting position of the pile point 40 of the net CP III according to the track.
The first is to move the detection vehicle 400, and the center of the cross beam perpendicular to the track direction of the detection vehicle 400 is overlapped with the center of the rail bearing platform through visual inspection of human eyes, and the mode depends on the center of the cross beam of the detection vehicle 400.
2) The wheel diameter of the wheel 50 is actually measured with a vernier caliper and the wheel diameter value is recorded in the hand-held controller 90. The mileage (which may be a subsequent mileage or a mileage accumulated from a previous starting point) of the CP iii stub point 40 of the initial rail bearing platform or the initial rail control network stored in the database and the actual wheel diameter value of the wheel 50 are read by the handheld controller 90, and the information is sent to the single chip microcomputer 70 through a wireless signal connection manner such as bluetooth or WIFI.
3) After the singlechip 70 confirms the receipt, the handheld controller 90 sends a scanning detection starting instruction to the singlechip 70, and after the singlechip 70 confirms the receipt, the singlechip 70 starts to manually push the detection vehicle 400.
At this moment, the laser radar sensor 10 scans the contact wire at a speed not lower than 600 frames, meanwhile, the sensor 60 records the travel mileage of the wheel 50 at a speed not lower than 2000 frames and with a precision not lower than 360 lines/circle, and the singlechip 70 collects the detection data of the laser radar sensor 10 and the sensor 60 and the internal time stamps thereof, stores the detection data into the memory 80 as the original record of detection, and the original record can also be used for off-line processing; meanwhile, the singlechip 70 processes the data, and obtains the slant distance and the angle of the contact network line above the detection vehicle 400 in the scanning section through a certain algorithm, wherein the interval is not more than 0.1 meter distance.
4) When the measurement is finished, a stop instruction is sent to the singlechip 70 through the handheld controller 90, and meanwhile, a characteristic mark of the rail bearing platform at the stop position, such as the serial number of the rail bearing platform, is transmitted; or the characteristic mark of the rail control net CP iii pile point 40 at the stop. Then, the data of the output memory 80 is taken out and stored, that is, the detection of the contact network cable shape is completed.
In the using process, the total station 30 is adopted to locate the initial position of the detection vehicle, based on the principle that each track control network CP III pile point 40 has independent coordinates, the total station 30 is adopted to collect the prism coordinates of the optical prism 20 arranged on the detection vehicle 400 in a free station setting mode, then the track center coordinates are calculated by combining the parameters of the trolley, then the relative position of the contact network line to the track center line is measured by the laser radar sensor 10, and a measurement result is obtained by combining a certain mathematical model.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.
Claims (5)
1. The utility model provides a linear detection device of railway contact net twine, includes the detection car that can walk along railway steel rail, its characterized in that: the detection device comprises a contact net detection device, a distance detection device and a data processor, wherein the contact net detection device is arranged on the detection vehicle, the detection direction of the contact net detection device is towards a contact net line so as to scan the line shape of the contact net line, the distance detection device is arranged at the position of a wheel of the detection vehicle so as to detect the traveling mileage of the wheel, and the data processor is respectively connected with the contact net detection device and the distance detection device to form data interaction; an optical prism is arranged on the detection vehicle.
2. The railway contact network line shape detection device according to claim 1, characterized in that: contact net detection device includes the laser radar sensor, the detection direction orientation of laser radar sensor contact net twine.
3. The railway contact network line shape detection device according to claim 1, characterized in that: the data processor comprises a single chip microcomputer and an output memory, the single chip microcomputer is connected with the contact net detection device and the distance detection device, the output memory is connected with the single chip microcomputer, and the output memory is provided with an external interface.
4. The railway contact network line shape detection device according to claim 1, characterized in that: the detection device further comprises a total station, and the total station is used for positioning the detection vehicle according to the CP III pile point of the track control network.
5. The railway contact network line shape detection device according to claim 1, characterized in that: the detection device further comprises a handheld controller, and the handheld controller is connected with the data processor to form data interaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123284311.XU CN216833682U (en) | 2021-12-24 | 2021-12-24 | Linear detection device of railway contact net twine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123284311.XU CN216833682U (en) | 2021-12-24 | 2021-12-24 | Linear detection device of railway contact net twine |
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| Publication Number | Publication Date |
|---|---|
| CN216833682U true CN216833682U (en) | 2022-06-28 |
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| CN202123284311.XU Active CN216833682U (en) | 2021-12-24 | 2021-12-24 | Linear detection device of railway contact net twine |
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| CN (1) | CN216833682U (en) |
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2021
- 2021-12-24 CN CN202123284311.XU patent/CN216833682U/en active Active
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