CN206787495U - Multi-angle two dimensional laser scanning gage measurement instrument under track checking car - Google Patents
Multi-angle two dimensional laser scanning gage measurement instrument under track checking car Download PDFInfo
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- CN206787495U CN206787495U CN201720512979.XU CN201720512979U CN206787495U CN 206787495 U CN206787495 U CN 206787495U CN 201720512979 U CN201720512979 U CN 201720512979U CN 206787495 U CN206787495 U CN 206787495U
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- laser scanning
- dimensional laser
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- track checking
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Abstract
The utility model discloses multi-angle two dimensional laser scanning gage measurement instrument under track checking car, problem to be solved is further reduction gauge measurement error.The device includes two dimensional laser scanning sensor（Hereinafter referred to as sensor）, interchanger, industrial computer, synchronizing signal module, RS232 buses and support occurs, sensor, interchanger, industrial computer pass sequentially through Ethernet with RS232 buses and are connected, sensor occurs module by synchronizing signal with industrial computer and is connected, sensor is arranged on support both ends, sensor laser scanning central shaft is vertical with track checking car direction of advance, including at least two pairs of sensors, its horizontal installation position is higher than orbit measurement face, and support level is arranged under track checking car.Sensor levels installation site ensures the stability and reliability of measurement data higher than orbit measurement face, and sensor levels are installed on the substantivity for ensureing measurement data on the middle vertical plane of orbit measurement face, and multigroup sensor multi-angle measures simultaneously reduces measurement error jointly.
Description
Technical field
Field of measuring technique is the utility model is related to, especially well-behaved measuring instrument equipment technical field.
Background technology
With the construction energetically of the laying and speed-raising on railway passenger special line road, and urban track traffic, the prison of track condition
Survey turns into the guarantee of circuit normal operation.The frequency of the track irregularity detection of data source is provided for monitoring will also increase greatly
Add.As one of its parameter, gauge detection always is an important content.Gauge change will result directly in train Ka Dao and
Derailing, causes serious economic loss and great traffic accident.
Gauge detection mode includes two kinds of Static Detection and dynamic detection.Rail inspection instrument is both wired ride comfort Static Detection
Instrumentation.As a kind of high-precision orbit geometry parameter detector, widely using for Liao Ge Railway Bureaus is obtained.It can be examined
The orbit geometry parameter measured includes：Gauge, mileage is horizontal, rail to and height.Gauge refers to 16 mm under rail's end portion tread
The distance between place, two strands of gage lines.Rail inspection instrument is divided into 0 grade, 1 grade of two class of accuracy, and 0 grade of rail inspection instrument is used for
Measurement circuitry permissible velocity is not more than 350 km/h railway, and the measurement error requirement of its gauge is within 0.3mm, 1 grade of rail
Examine instrument be used for circuit permissible velocity be not more than 200 km/h common railway, its gauge measurement error requirement 0. 5 mm with
It is interior.
Because rail inspection instrument has detection, orbit geometry parameter is more, the less advantage of measurement error, obtained it is wide should
With, but can not increasingly meet the problem of the measurement process that its Static Detection is brought takes time and effort, measurement efficiency is low current
The requirement in market.
Gauge dynamic detection is a new research direction, and it includes the contactless gauge based on computer vision system
Detection method.According to testing requirements, during train advances, under the drive of the equipment such as bearing, photoelectric encoder sends pulse
Signal, triggering are arranged on two CCD industrial cameras on the inside of the track of left and right, and capture includes being radiated at the auxiliary light on rail
Rail profile image, is transferred in industrial computer by data collecting card, after the image processing methods such as image thinning, obtains steel
Gauge measurement point on rail contour line.After the coordinate that left and right rail measurement point is represented in world coordinate system, you can obtain rail
Away from parameter.
Contactless gauge detection method based on computer vision system solves conventional rail, and to pick up instrument measurement efficiency low
The problem of, but on the one hand its CCD industrial camera is larger by vibration influence, adds measurement error；On the other hand practical photography
Larger error be present in the gauge measurement point that measuring method is obtained in rail contour line.
The content of the invention
Problem to be solved in the utility model is further reduction gauge measurement error, improves measurement accuracy and efficiency.
Multi-angle two dimensional laser scanning gage measurement instrument under track checking car, including two dimensional laser scanning sensor, interchanger, work
Module, RS232 buses and support, two dimensional laser scanning sensor, interchanger, industrial computer and RS232 occur for control machine, synchronizing signal
Bus passes sequentially through Ethernet and is connected, and two dimensional laser scanning sensor occurs module by synchronizing signal with industrial computer and is connected, and two
Dimension scanning laser sensor is arranged on support both ends, two dimensional laser scanning sensor laser scanning central shaft and track checking car advance side
To vertical, including at least a pair of two dimensional laser scanning sensors, it is horizontally installed on the middle vertical plane of orbit measurement face, support level
Under track checking car.
Preferably, including at least a pair of two dimensional laser scanning sensors, its horizontal installation position is higher than orbit measurement face, and two
Dimension scanning laser sensor laser scanning central shaft is located on horizontal plane, and vertical with track checking car direct of travel.
Preferably, horizontal installation position is located at the installation position of the two dimensional laser scanning sensor on the middle vertical plane of orbit measurement face
Put：The line of two dimensional laser scanning sensor laser scanning central point and orbit measurement face closest approach and axle institute of scanning center are into folder
Angle θ=0；Installation site of the horizontal installation position higher than the two dimensional laser scanning sensor in orbit measurement face：Two dimensional laser scanning passes
The line and scanning center axle angle θ ∈ (0, π/6) of sensor laser scanning central point and orbit measurement face closest approach.
Preferably, synchronizing signal occurs module and module occurs for the synchronizing signal based on CPLD.
Preferably, support includes left and right fixed mount, and left and right fixed mount is arranged under track checking car, two dimensional laser scanning sensor
It is symmetrically mounted on the fixed mount of left and right.
Preferably, support also includes horizontal gird, and horizontal gird is arranged under the fixed mount of left and right, two dimensional laser scanning sensing
Device is arranged on horizontal gird both ends.
Preferably, all two dimensional laser scanning sensor scan central shafts are located in same perpendicular.
Two dimensional laser scanning sensor levels installation site higher than orbit measurement face ensure measurement data stability and can
By property, two dimensional laser scanning sensor levels, which are installed on the middle vertical plane of orbit measurement face, causes both sides two dimensional laser scanning sensor
Minimum measured value be respective distance with orbit measurement face, ensure the substantivity of measurement data, two dimensional laser scanning sensing
Device measurement accuracy is high, and multigroup two dimensional laser scanning sensor multi-angle measures simultaneously reduces measurement error jointly, ensure that survey
Accuracy of measurement；Because two dimensional laser scanning sensor utilizes optical principle, reading delay is small, can be surveyed in real time by track checking car gait of march
Amount, measurement efficiency are high.
Brief description of the drawings
Fig. 1 is multi-angle two dimensional laser scanning gage measurement instrument structural representation under track checking car.
Fig. 2 is that the overall structure that multi-angle two dimensional laser scanning gage measurement instrument is arranged on when under track checking car under track checking car is shown
It is intended to.
Fig. 3 is multi-angle two dimensional laser scanning gage measurement instrument principle schematic under track checking car.
Fig. 4 is that the application method principle for the two dimensional laser scanning sensor being horizontally installed on the middle vertical plane of orbit measurement face is shown
It is intended to.
Fig. 5 is application method principle signal of the horizontal installation position higher than the two dimensional laser scanning sensor in orbit measurement face
Figure.
1 in figure, two dimensional laser scanning sensor；2nd, support；3rd, fixed mount；4th, crossbeam；5th, track；6th, track checking car.
Embodiment
Embodiment 1
As Figure 1-3, multi-angle two dimensional laser scanning gage measurement instrument under track checking car, including two dimensional laser scanning sensing
Module, RS232 buses and support occur for device, interchanger, industrial computer, synchronizing signal, two dimensional laser scanning sensor, interchanger,
Industrial computer passes sequentially through Ethernet with RS232 buses and is connected, and two dimensional laser scanning sensor and industrial computer are sent out by synchronizing signal
Raw module is connected, and two dimensional laser scanning sensor is arranged on support both ends, two dimensional laser scanning sensor laser scanning central shaft
Vertical with track checking car direction of advance, including at least a pair of two dimensional laser scanning sensors, it is horizontally installed in orbit measurement face
On vertical plane, support level is arranged under track checking car.The device course of work：Two dimensional laser scanning sensor is by measurement data by handing over
Change planes and transmit to industrial computer, shown by industrial computer data acquisition, data scaling, dimensional variation, data processing and data.For
Ensure the two dimensional laser scanning sensor synchronous scanning at support both ends, industrial computer is occurred by RS232 buses to synchronizing signal
System sends synch command, and synchronizing signal occurs system and sends synchronizing signal to the two dimensional laser scanning sensor at both ends.
Including at least a pair of two dimensional laser scanning sensors, its horizontal installation position is higher than orbit measurement face, two-dimensional laser
Scanning sensor laser scanning central shaft is located on horizontal plane, and vertical with track checking car direct of travel.
Horizontal installation position is located at the installation site of the two dimensional laser scanning sensor on the middle vertical plane of orbit measurement face：Two dimension
Line and scanning center axle angle θ=0 of the scanning laser sensor laser scanning central point with orbit measurement face closest approach；
Installation site of the horizontal installation position higher than the two dimensional laser scanning sensor in orbit measurement face：Two dimensional laser scanning sensor swashs
The line and scanning center axle angle θ ∈ (0, π/6) of optical scanning central point and orbit measurement face closest approach.
Two dimensional laser scanning sensor levels, which are installed on the middle vertical plane of orbit measurement face, causes both sides two dimensional laser scanning to pass
The minimum measured value of sensor is respective distance with orbit measurement face, ensures the substantivity of measurement data, and error is smaller.Two dimension
When scanning laser sensor horizontal installation position is higher than orbit measurement face, in order to reduce error, while ensure the steady of measurement data
Determine reliability so that two dimensional laser scanning sensor remains at more than orbit measurement face in the range of certain vibrations, and θ should
It is larger；On the other hand in order to scan leaving space to two dimensional laser scanning sensor x-axis, the closest approach for avoiding scanning is located at rail
More than point, θ should not be excessive, and under balance, θ is arranged into the scope.
Two dimensional laser scanning sensor is symmetrically mounted on support both ends.Support includes left and right fixed mount and horizontal gird, water
Flat crossbeam is arranged under the fixed mount of left and right, and two dimensional laser scanning sensor is arranged on horizontal gird both ends.
All two dimensional laser scanning sensor scan central shafts are located in same perpendicular.It ensure that all two-dimensional lasers
Scanning sensor measures the gauge of same rail section simultaneously, reduces measurement error.
As shown in Figure 4,5, the application method of device：（1）, extraction simultaneously with position both sides two dimensional laser scanning sensor
Minimum measured value, it is set to a, b；（2）, extraction the corresponding measurement point of minimum measured value, obtain above-mentioned measurement point and swept with two-dimensional laser
The line and scanning center's axle angle of sensor scan central point are retouched, is set to α, β；（3）, set two two dimensional laser scannings sensing
Device spacing is c, gauge s=c+acos α+bcos β, when two dimensional laser scanning sensor levels are installed on orbit measurement face middle vertical plane
When upper, α=β=0；（4）, obtain by above-mentioned steps the gauge s of multigroup two dimensional laser scanning sensor measurement1、s1……sn, it is average
Gauge s '=（s1+s1+……+sn）/n.It is with geographical coordinate that the measurement gauge value is combined with vehicle GPS location data
Complete gauge value.
Claims (7)
1. multi-angle two dimensional laser scanning gage measurement instrument under track checking car, it is characterized in that including two dimensional laser scanning sensor, handing over
Change planes, module, RS232 buses and support, two dimensional laser scanning sensor, interchanger, industrial computer occur for industrial computer, synchronizing signal
Ethernet is passed sequentially through with RS232 buses to be connected, by synchronizing signal module occurs for two dimensional laser scanning sensor and industrial computer
It is connected, two dimensional laser scanning sensor is arranged on support both ends, and two dimensional laser scanning sensor laser scanning central shaft is examined with rail
Car direction of advance is vertical, and including at least a pair of two dimensional laser scanning sensors, it is horizontally installed on the middle vertical plane of orbit measurement face,
Support level is arranged under track checking car.
2. according to multi-angle two dimensional laser scanning gage measurement instrument under the track checking car described in claim 1, it is characterized in that at least
Including a pair of two dimensional laser scanning sensors, its horizontal installation position is higher than orbit measurement face, and two dimensional laser scanning sensor swashs
Optical scanning central shaft is located on horizontal plane, and vertical with track checking car direct of travel.
3. according to multi-angle two dimensional laser scanning gage measurement instrument under the track checking car described in claim 2, it is characterized in that horizontal
Installation site is located at the installation site of the two dimensional laser scanning sensor on the middle vertical plane of orbit measurement face：Two dimensional laser scanning senses
Line and scanning center axle angle θ=0 of the device laser scanning central point with orbit measurement face closest approach；Horizontal installation position
Higher than the installation site of the two dimensional laser scanning sensor in orbit measurement face：Two dimensional laser scanning sensor laser scanning central point
With the line and scanning center axle angle θ ∈ (0, π/6) of orbit measurement face closest approach.
4. according to multi-angle two dimensional laser scanning gage measurement instrument under the track checking car described in claim 1, it is characterized in that synchronous
For the synchronizing signal based on CPLD module occurs for signal generating module.
5. according to multi-angle two dimensional laser scanning gage measurement instrument under the track checking car described in claim 1, it is characterized in that support
Including left and right fixed mount, left and right fixed mount is arranged under track checking car, and it is fixed that two dimensional laser scanning sensor is symmetrically mounted on left and right
On frame.
6. according to multi-angle two dimensional laser scanning gage measurement instrument under the track checking car described in claim 5, it is characterized in that support
Also include horizontal gird, horizontal gird is arranged under the fixed mount of left and right, and two dimensional laser scanning sensor is arranged on horizontal gird two
End.
7. multi-angle two dimensional laser scanning gage measurement instrument under the track checking car according to any one in claim 1-6, its
It is characterized as that all two dimensional laser scanning sensor scan central shafts are located in same perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720512979.XU CN206787495U (en) | 2017-05-10 | 2017-05-10 | Multi-angle two dimensional laser scanning gage measurement instrument under track checking car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720512979.XU CN206787495U (en) | 2017-05-10 | 2017-05-10 | Multi-angle two dimensional laser scanning gage measurement instrument under track checking car |
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| CN206787495U true CN206787495U (en) | 2017-12-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020162A (en) * | 2017-05-10 | 2018-05-11 | 湖南科技大学 | Gauge instrument and its application method based on two dimensional laser scanning Yu triangle principle |
| CN110525463A (en) * | 2019-07-30 | 2019-12-03 | 武钢资源集团有限公司 | Underground mine track transportation rail checks vehicle and inspection method |
| CN113635326A (en) * | 2021-08-31 | 2021-11-12 | 中铁第四勘察设计院集团有限公司 | Full geometric dimension inspection robot of track |
-
2017
- 2017-05-10 CN CN201720512979.XU patent/CN206787495U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020162A (en) * | 2017-05-10 | 2018-05-11 | 湖南科技大学 | Gauge instrument and its application method based on two dimensional laser scanning Yu triangle principle |
| CN108020162B (en) * | 2017-05-10 | 2023-09-19 | 湖南科技大学 | Rail gauge based on two-dimensional laser scanning and triangle principle and use method thereof |
| CN110525463A (en) * | 2019-07-30 | 2019-12-03 | 武钢资源集团有限公司 | Underground mine track transportation rail checks vehicle and inspection method |
| CN113635326A (en) * | 2021-08-31 | 2021-11-12 | 中铁第四勘察设计院集团有限公司 | Full geometric dimension inspection robot of track |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20200510 |