CN207215030U - The measuring system of longitudinal displacement of steel rail - Google Patents
The measuring system of longitudinal displacement of steel rail Download PDFInfo
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- CN207215030U CN207215030U CN201720961652.0U CN201720961652U CN207215030U CN 207215030 U CN207215030 U CN 207215030U CN 201720961652 U CN201720961652 U CN 201720961652U CN 207215030 U CN207215030 U CN 207215030U
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 21
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 238000003384 imaging method Methods 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a kind of measuring system of longitudinal displacement of steel rail.Wherein, the system includes：Controller, correspondence is established with generating laser, for controlling laser transmitter projects laser；Scale, rail is fixed on, for receiving the laser of laser transmitter projects；Imaging sensor, correspondence is established with controller, for the first image of the scale collected to be sent to controller, wherein, the first image includes the light beam of laser；Controller, it is additionally operable to generate the length travel of rail according to the first image.The utility model is solved in correlation technique, is detected the device vibration resistance difference of steel rail displacement and is caused the low technical problem of the data accuracy detected.
Description
Technical field
Railway territory is the utility model is related to, in particular to a kind of measuring system of longitudinal displacement of steel rail.
Background technology
When newly-built seamless railway is laid a railway track, it is necessary to which stretching uniform and rail temperature in track meets fastening-down temperature of rail scope
In the case of just proceed by rail fastening down, and in order to monitor whether track stretches uniformly at any time, generally require 1000 or
The pulled out condition of track each point is monitored in the range of 1500 meter-gage roads.
In the prior art, often surveyed using magnetic scale detection technique and drawstring ranging technology come the displacement to rail
Amount, in magnetic scale detection technique, steel rail displacement data can be obtained using magnetic displacement reading device, will in ranging technology is stretched
Drawstring location displacement sensor one end is fixed on rail, and one section is fixed on track plates, and when rail moves, rope sensor is just
Steel rail displacement value can be exported.
It should be noted that in the scheme of above-mentioned measurement steel rail displacement, magnetic displacement reading device and drawstring displacement
The vibration resistance of sensor is poor, causes the data that detect low through accuracy.
Device vibration resistance difference in above-mentioned correlation technique, detecting steel rail displacement causes the data accuracy that detects low
The problem of, effective solution is not yet proposed at present.
Utility model content
The utility model embodiment provides a kind of measuring system of longitudinal displacement of steel rail, at least to solve correlation technique
In, detecting the device vibration resistance difference of steel rail displacement causes the low technical problem of the data accuracy detected.
According to the one side of the utility model embodiment, there is provided a kind of measuring system of longitudinal displacement of steel rail, including：
Controller, correspondence is established with generating laser, for controlling laser transmitter projects laser；Positioning rule, rail is fixed on,
For receiving the laser of laser transmitter projects；Imaging sensor, correspondence is established with controller, for the mark that will be collected
First image of chi is sent to controller, wherein, the first image includes the light beam of laser；Controller, it is additionally operable to according to first
Image generates the length travel of rail.
Further, controller includes：Processor, correspondence is established with imaging sensor, for according to the first image
Identify the first scale where light beam in positioning rule.
Further, controller includes：Memory, correspondence is established with processor, for storing default scale.
Further, controller includes：Calculator, correspondence is established with processor and memory respectively, for root
The length travel of generation rail is calculated according to the first scale and default scale.
Further, controller also includes：Signal adapter, correspondence is established with calculator, for indulging rail
Data signal is converted into displacement.
Further, system also includes：Host computer, correspondence is established with signal adapter, changed for reception signal
The data signal that device is sent.
Further, host computer also establishes correspondence with controller, for sending measurement instruction to controller.
Further, imaging sensor includes：Camera, for the first figure of the speed acquisition positioning rule of 500 seconds/frame
Picture.
Further, generating laser is yi word pattern transmitter.
Further, signal adapter is sent data signal to host computer by serial ports.
In the utility model embodiment, the measuring system of longitudinal displacement of steel rail includes：Controller, built with generating laser
Vertical correspondence, for controlling laser transmitter projects laser；Scale, rail is fixed on, for receiving laser transmitter projects
Laser；Imaging sensor, correspondence is established with controller, for the first image of the scale collected to be sent to control
Device, wherein, the first image includes the light beam of laser；Controller, it is additionally operable to generate the length travel of rail according to the first image,
Solve in correlation technique, the technology that detecting the device vibration resistance difference of steel rail displacement causes the data accuracy detected low is asked
Topic.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is the structural representation according to a kind of measuring system of longitudinal displacement of steel rail of the utility model embodiment；With
And
Fig. 2 is the structural representation according to a kind of measuring system of alternatively longitudinal displacement of steel rail of the utility model embodiment
Figure.
Embodiment
In order that those skilled in the art more fully understand the utility model, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that be described
Embodiment is only the embodiment of the utility model part, rather than whole embodiments.Based on the reality in the utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all should
When the scope for belonging to the utility model protection.
The utility model provides a kind of measuring system of longitudinal displacement of steel rail, as shown in figure 1, the system can include：
Controller 12, correspondence is established with generating laser 13, for controlling laser transmitter projects laser 10.
Positioning rule 14, is fixed on rail, for receiving the laser 10 of laser transmitter projects.
Specifically, in this programme, correspondence can be established with host computer using the controller in measuring system, on
Position machine can send measurement instruction to the controller 12 in measuring system, and the measurement instruction is used to control measurement sensor system to survey
The length travel of dimension rail.It should be noted that controller noted above 12 can be FPGA processor.Controller receive it is upper
After the measurement instruction that machine is sent, generating laser can be controlled to send laser to positioning rule, above-mentioned positioning rule can be high-precision
Positioning rule is spent, generating laser can form the light beam of linear laser on above-mentioned high accuracy positioning chi.Need exist for explanation
It is to have scale in high accuracy positioning chi, generating laser is fixed, and high accuracy positioning chi can occur vertical with rail
To displacement.
Imaging sensor 16, correspondence is established with controller, for by the first image of the scale collected send to
Controller, wherein, the first image includes the light beam of laser.
Controller 12, it is additionally operable to generate the length travel of rail according to the first image.
Specifically, for controller after laser transmitter projects laser is controlled, controller can control imaging sensor to grab again
The image of high accuracy positioning chi is clapped, it is necessary to illustrate, the light beam of laser can be included in the image of the high accuracy positioning chi
Track.Controller can generate the length travel of above-mentioned rail by the way that processing is identified to above-mentioned first image.
The measurement instruction that the present embodiment is sent by receiving host computer；Generating laser is controlled to positioning according to measurement instruction
Chi launches laser, wherein, positioning rule is fixed on rail；The first image of institute's imaging sensor collection positioning rule is controlled, wherein, figure
Light beam as including laser；The length travel of the first image generation rail fed back according to imaging sensor.It is easily noted that,
This programme is to measure the length travel of rail by way of image measurement, and the non-contacting mode causes when measuring displacement
Resistance to shock is improved, and the accuracy for measuring steel rail displacement uprises, moreover, the scheme of the present embodiment is without lighting source, no
Disturbed by strong light, therefore, this programme is solved in correlation technique, is detected the device vibration resistance difference of steel rail displacement and is caused what is detected
The problem of data accuracy is low.
Alternatively, controller noted above can include：Processor, correspondence is established with imaging sensor, for according to
One image recognition goes out the first scale where light beam in positioning rule.
Alternatively, controller noted above can include：Memory, correspondence is established with processor, for storing default quarter
Degree.
Alternatively, controller noted above can include：Calculator, correspondence is established with processor and memory respectively,
For calculating the length travel of generation rail according to the first scale and default scale.
Specifically, processing can be identified to above-mentioned first image in this programme, and identifies above-mentioned high accuracy positioning
The first scale on chi where light beam., can prestore default scale in the controller, controller can according to the first scale with
The difference of default scale generates the length travel of above-mentioned rail to calculate, and above-mentioned default scale can be zero graduation.Here need
It is noted that above-mentioned default scale can also be by identifying that the positioning rule in initial pictures obtains, initial pictures also have image
Sensor collects.
Alternatively, controller noted above can also include：Signal adapter, correspondence is established with calculator, for by steel
The length travel of rail is converted into data signal.
Alternatively, said system can also include：Host computer, correspondence is established with signal adapter, believed for receiving
The data signal that number converter is sent.
Alternatively, host computer also establishes correspondence with controller, for sending measurement instruction to controller.
Alternatively, above-mentioned imaging sensor can include：Camera, for the speed acquisition positioning rule of 500 seconds/frame
First image.
Alternatively, above-mentioned generating laser is yi word pattern generating laser.Yi word pattern laser can be to high accuracy positioning
Chi launches the light beam of linear laser.
Alternatively, the sensor can be sent data signal to host computer by serial ports.Above-mentioned the utility model is real
Apply that a sequence number is for illustration only, do not represent the quality of embodiment.
With reference to Fig. 2, a kind of preferred embodiment of the application is introduced：
The application can provide a kind of displacement transducer, as shown in Fig. 2 the displacement transducer can include：It is high-precision fixed
Position chi 21, yi word pattern laser 23 and imaging sensor 25.Displacement transducer 25 receives initialization command, may turn on one
Font laser 23, forms linear laser on high accuracy positioning chi 21, and imaging sensor 25 captures the high accuracy for having laser rays
Positioning rule image, FPGA analysis processors 27 can positioning mark corresponding to automatic identification initial zero position, subsequent picture sensor with
The speed acquisition high accuracy positioning chi image of 500 frame per second, the analysis in real time of FPGA analysis processors 27 calculate current high-precision fixed
The displacement of position chi range zero, and it is transformed into data signal, host computer is uploaded to by serial ports.The scheme installation side of the present embodiment
Just, it is simple to operate, measurement accuracy is high, can reach 0.1mm, and the scheme strong antijamming capability of the present embodiment, resistance to shock is good,
Measurement result is not easily susceptible to external interference.
In above-described embodiment of the present utility model, the description to each embodiment all emphasizes particularly on different fields, in some embodiment
The part not being described in detail, it may refer to the associated description of other embodiment.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing unit,
Can be that unit is individually physically present, can also two or more units it is integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (10)
- A kind of 1. measuring system of longitudinal displacement of steel rail, it is characterised in that including：Controller 12, correspondence is established with generating laser 13, for controlling the generating laser 13 to launch laser 10；Positioning rule 14, is fixed on rail, the laser 10 launched for receiving the generating laser 13；Imaging sensor 16, correspondence is established with the controller 14, for the first image of the scale collected to be sent To the controller 14, wherein, described first image includes the light beam of the laser 10；The controller 14, it is additionally operable to generate the length travel of the rail according to described first image.
- 2. system according to claim 1, it is characterised in that the controller includes：Processor, correspondence is established with described image sensor, for identifying the positioning rule according to described first image Described in the first scale where light beam.
- 3. system according to claim 2, it is characterised in that the controller includes：Memory, correspondence is established with the processor, for storing default scale.
- 4. system according to claim 3, it is characterised in that the controller includes：Calculator, establish correspondence with the processor and the memory respectively, for according to first scale with And the default scale calculates the length travel for generating the rail.
- 5. system according to claim 4, it is characterised in that the controller also includes：Signal adapter, correspondence is established with the calculator, for the length travel of the rail to be converted into digital letter Number.
- 6. system according to claim 5, it is characterised in that the system also includes：Host computer, correspondence is established with the signal adapter, the numeral sent for receiving the signal adapter Signal.
- 7. system according to claim 6, it is characterised in thatThe host computer also establishes correspondence with the controller, for sending measurement instruction to the controller.
- 8. system according to claim 1, it is characterised in that described image sensor includes：Camera, for the first image of positioning rule described in the speed acquisition of 500 seconds/frame.
- 9. system according to claim 1, it is characterised in that the generating laser is yi word pattern transmitter.
- 10. system according to claim 6, it is characterised in that the signal adapter is believed the numeral by serial ports Number send to the host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961652.0U CN207215030U (en) | 2017-08-02 | 2017-08-02 | The measuring system of longitudinal displacement of steel rail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961652.0U CN207215030U (en) | 2017-08-02 | 2017-08-02 | The measuring system of longitudinal displacement of steel rail |
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| Publication Number | Publication Date |
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| CN207215030U true CN207215030U (en) | 2018-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707572A (en) * | 2020-07-10 | 2020-09-25 | 陕西航空电气有限责任公司 | Displacement calibration equipment |
-
2017
- 2017-08-02 CN CN201720961652.0U patent/CN207215030U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707572A (en) * | 2020-07-10 | 2020-09-25 | 陕西航空电气有限责任公司 | Displacement calibration equipment |
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