CN106595536A - Identification apparatus and method of metal tank car - Google Patents
Identification apparatus and method of metal tank car Download PDFInfo
- Publication number
- CN106595536A CN106595536A CN201611130824.6A CN201611130824A CN106595536A CN 106595536 A CN106595536 A CN 106595536A CN 201611130824 A CN201611130824 A CN 201611130824A CN 106595536 A CN106595536 A CN 106595536A
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- vehicle
- chip microcomputer
- tank car
- metal tank
- resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses an identification apparatus of a metal tank car. The apparatus comprises a continuous wave laser range finder opposite to a to-be-identified vehicle and a single-chip microcomputer control processing circuit connected with the continuous wave laser range finder. According to the apparatus, laser waveform emitted by the vehicle is detected by employing the continuous wave laser range finder, whether the vehicle is the metal tank car is determined according to the change of the laser waveform, the detection method is simple, and the cost is low; vehicle waveform signals output by the continuous wave laser range finder are compared and analyzed and a corresponding light emitting diode is controlled to be turned on or turned off by employing the single-chip microcomputer control processing circuit, when the vehicle is the metal tank car, the light emitting diode is turned on, when the vehicle is not the metal tank car, the light emitting diode is turned off, staff can determine whether the passing vehicle is the metal tank car by directly observing the state of the diode, and simplicity and intuition are realized.
Description
Technical field
The present invention relates to laser ranging field, specifically a kind of metal tank car identifying device and method.
Background technology
Many function circuits such as railway supplyline partite transport battalion line, shunting line and special purpose railroad, can be with various circuits
By various vehicles.But the entrucking of general rail tank car and unloading is completed in special purpose railroad, if desired to oil
Tank car carries out automatic detection, just has to its automatic discrimination, and automatic discriminating gear is located at special purpose railroad for preferred plan.Such as
What identification oil truck, and other vehicles are distinguished, typically using number identification device, the device can directly read vehicle
Information, but its is with high costs, and minimum price also wants more than 100,000 yuan；Even if identification vehicle number itself, such as G3059859,
It is " G " that wherein letter is the first, and explanation is tank car, and this set number reading device price also wants 50,000 or so, and individual vehicle number
Covered by dust, soil, it is impossible to recognize.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of metal tank car identifying device and method, by continuous laser ripple
The surface smoothness of detection vehicle, when flatness meets sets requirement, as metal tank car is such as unsatisfactory for, is not then metal
Tank car, present configuration are simple, easy for installation, and testing result is intuitively accurate.
The technical scheme is that：
A kind of metal tank car identifying device, includes the continuous wave laser diastimeter relative to vehicle to be identified, and continuous
The Single-chip Controlling process circuit of ripple laser range finder connection；Described Single-chip Controlling process circuit include single-chip microcomputer,
One A/D modular converters, resistance R1, resistance R2, the 2nd A/D modular converters, adjustable resistance R3, the 3rd A/D modular converters, adjustable electric
Resistance R4 and light emitting diode, the digital output end of a described A/D modular converters are connected with single-chip microcomputer, an A/D moduluss of conversion
The analog input end of block one end respectively with resistance R1, one end of resistance R2 are connected, and the other end connection continuous wave of resistance R1 swashs
The signal output part of optar, the other end ground connection of resistance R2, the digital output end and list of described the 2nd A/D modular converters
Piece machine connects, and the analog input end of the 2nd A/D modular converters is connected with the control joint of adjustable resistance R3, and the one of adjustable resistance R3
Anchor tip is connected with positive source, another anchor tip ground connection of adjustable resistance R3, the number of described the 3rd A/D modular converters
Word outfan is connected with single-chip microcomputer, and the analog input end of the 3rd A/D modular converters is connected with the control joint of adjustable resistance R4, can
An anchor tip of resistance R4 is adjusted to be connected with positive source, another anchor tip ground connection of adjustable resistance R4, described luminous two
The negative pole of pole pipe is connected with the output control terminal of single-chip microcomputer, the positive pole connection positive source of light emitting diode.
Continuous wave laser diastimeter is relative to the continuous laser of vehicle emissions for travelling, the inspection of continuous wave laser diastimeter first
Corresponding vehicle waveshape signal is measured, then vehicle waveshape signal Vin is sent to the monolithic of Single-chip Controlling process circuit
Machine, sets threshold voltage VT by adjustable resistance R3 according to the roughness single-chip microcomputer on metal tank car surface, and single-chip microcomputer is by adjustable
Resistance R4 sets detection cycle T；When the negative pulse of 0.2S -0.5S occurs in vehicle waveshape signal Vin, single chip circuit resets,
When negative pulse terminates, and rising pulses occurs, and rise time of the rising pulses away from negative pulse be 0.1S when Vin voltage conducts
Reference voltage V J of this detection cycle, then the timer of single-chip microcomputer start timing, when timing time be more than T when, monolithic is machine-readable
Take Vin, when | Vin |≤VJ ± VT, i.e. surface of vehicle flatness not less than threshold voltage roughness, i.e., vehicle be canister
Car, single-chip microcomputer output low level, light emitting diode are lighted, and as | Vin | ＞ VJ ± VT, i.e., the flatness of surface of vehicle is not less than door
The roughness of voltage limit, i.e. vehicle are not metal tank cars, and single-chip microcomputer output high level, light emitting diode extinguish.
On described single-chip microcomputer after electricity, light emitting diode is the state extinguished, when rising of the rising pulses away from negative pulse
Between for 0.1S when, read VJ, now light emitting diode light, i.e., when detect vehicle be metal tank car when, light emitting diode maintain
Illuminating state, when it is not metal tank car to detect vehicle, light emitting diode is transformed to OFF state.
Described threshold voltage VT is 1-3V, and described detection cycle T is 1-3s.
The principle of the present invention：
As metal tank car surface and regular general cargo surface of vehicle have significantly smooth feature, we take measurement oil truck waist
Portion (centre position) is scanning element, and metal tank car surface roughness is typically in 2mm or so, and regular general cargo surface of vehicle roughness
Generally 2mm-100mm or so, even more big (flat car of loading thing etc.), can with this judge vehicle as metal tank car or its
His vehicle.Range measurement is carried out so as to form corresponding oscillogram using continuous wave laser diastimeter according to vehicle flatness.When
Detection system scans to before vehicle (or when arriving vehicle without scanning), and waveform is zero；When detection system scanning is to vehicle, and it is
Metal tank car, then waviness of the surface Changing Pattern, without mutation waveform；When detection system scanning is to vehicle, and it is not metal tank car,
Then waviness of the surface has substandard change and huge waveform is mutated.From oscillogram as can be seen that metal tank car and other cars
Waviness of the surface it is completely different, the two waveforms can be distinguished by Single-chip Controlling process circuit and remind aobvious
Show.
Advantages of the present invention：
The present invention detects the laser waveform that vehicle emissions are returned using continuous wave laser diastimeter, according to the change of laser waveform
Change, judge that whether vehicle is metal tank car, detection method is simply and low cost；The present invention adopts Single-chip Controlling process circuit pair
The vehicle waveshape signal of continuous wave laser diastimeter output is compared analysis, and controls corresponding light emitting diode and light or put out
Go out, when being metal tank car, Light-Emitting Diode is lighted, when not being metal tank car, light emitting diode extinguishes, and staff is direct
The state of observation diode, you can judge the vehicle for passing through whether as metal tank car, simple, intuitive.
Description of the drawings
Fig. 1 is the oscillogram of vehicle waveshape signal Vin of the present invention, and abscissa is the time, and vertical coordinate is voltage V.
Fig. 2 is the circuit diagram of Single-chip Controlling process circuit of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
A kind of metal tank car identifying device, includes the continuous wave laser diastimeter relative to vehicle to be identified, and continuous
The Single-chip Controlling process circuit of ripple laser range finder connection；See Fig. 2, Single-chip Controlling process circuit include single-chip microcomputer,
One A/D modular converters, resistance R1, resistance R2, the 2nd A/D modular converters, adjustable resistance R3, the 3rd A/D modular converters, adjustable electric
Resistance R4 and light emitting diode, the digital output end of a described A/D modular converters are connected with single-chip microcomputer, an A/D moduluss of conversion
The analog input end of block one end respectively with resistance R1, one end of resistance R2 are connected, and the other end connection continuous wave of resistance R1 swashs
The signal output part of optar, the other end ground connection of resistance R2, the digital output end and list of described the 2nd A/D modular converters
Piece machine connects, and the analog input end of the 2nd A/D modular converters is connected with the control joint of adjustable resistance R3, and the one of adjustable resistance R3
Anchor tip is connected with positive source, another anchor tip ground connection of adjustable resistance R3, the number of described the 3rd A/D modular converters
Word outfan is connected with single-chip microcomputer, and the analog input end of the 3rd A/D modular converters is connected with the control joint of adjustable resistance R4, can
An anchor tip of resistance R4 is adjusted to be connected with positive source, another anchor tip ground connection of adjustable resistance R4, described luminous two
The negative pole of pole pipe is connected with the output control terminal of single-chip microcomputer, the positive pole connection positive source of light emitting diode.
The technical parameter of continuous wave laser diastimeter is as follows:Measurement range：200mm～6000mm；The linearity：± 0.1%；
Resolution：0.01%；Laser calibration optical wavelength：660nm；Semiconductor laser transmission power：1～3mW；Infrared survey laser wave
It is long：900nm；Frequency response：5kHz；Response time：0.13ms；Certainty of measurement：0.4mm；Simulation output：4mA～20mA or 0～
10V；Running voltage：24VDC(18V—36V)；Power consumption：3W；Protection class：IP67, during calibration, I grade of laser (is infrared during measurement
Laser emission)；Operating temperature：(- 10～60) DEG C (industry), (- 40～70) DEG C (military products).
The minimum detection distance of continuous wave laser diastimeter is 200mm, and maximum detecting distance is 6000mm.200mm～
6000mm is exactly its " monitoring section ".After windows detecting to object, continuous wave laser diastimeter can export corresponding waveform letter
Number.
For the ease of testing and debugging, the ultimate range of continuous wave laser diastimeter is debugged as 3000mm, nearly blind area
200mm, the laser monitoring sensor of " monitoring section " for 200mm～3000mm.When laser sensor is more than with measured object distance
6000mm, laser sensor are output as constant 20mA；When 200mm is less than with measured object distance, laser sensor is output as
4mA.When laser sensor is more than 200mm with measured object distance and is less than 6000mm, laser sensor is output as 4mA -20mA,
I.e.：L<200mm, I=4mA；L>6000mm, I=20mA；L=200mm → 6000mm, I=4mA → 20mA；L=6000mm →
200mm, I=20mA → 4mA.
According to the technical parameter of continuous wave laser diastimeter, calculate train with 250km/h speed by when linear velocity：
250km/h=25000000cm/3600s ≈ 6944cm/s ≈ 7cm/ms
The operating frequency (frequency response) of this kind of continuous wave laser diastimeter is 5kHz, i.e. the single measurement time is
0.13ms.According to laser sensor response time 0.13ms, surface of vehicle smallest object diameter 1cm, the monitoring used time is：
1cm÷7cm/ms≈0.142ms
0.142ms transfinites article diameters more than 0.13ms sensor response times, and measurement result is effective.
According to above result of calculation, the present invention can implement effectively to detect to the train of below 250km/h, and of the invention
Vehicle of the speed of service for (10-20) km/h is only detected, requirement is fully met.
The continuous wave laser diastimeter uses infrared ray boundling light when normal monitoring is used, wavelength 900um,
To human body without any injury.When laser monitoring point position opening laser calibration is debugged, sensor just launches the laser of 660um
Beam (I grade).After the completion of adjustment, laser calibration signal is closed.
The vehicle waveshape signal scanned by continuous wave laser diastimeter, is sent to Single-chip Controlling process circuit, by circuit
Signal wave momentum to being input into is analyzed, when in certain time interval T, the fluctuation of (in such as 2 seconds) continuous wave amount is less than 10mm (such as
Voltage difference 2V), it is judged as metal tank car；Conversely, when in 2 second time, the fluctuation of continuous wave amount is greatly less than 10mm (such as voltage difference
More than 2V), it is judged as non-oil truck.Concrete case is as follows：
A kind of metal tank car recognition methodss, first continuous wave laser diastimeter are continuously swashed relative to the vehicle emissions of traveling
Light, the detection of continuous wave laser diastimeter obtain corresponding vehicle waveshape signal, and vehicle waveshape signal Vin is sent to monolithic then
The single-chip microcomputer of machine control process circuit, sets thresholding electricity by adjustable resistance R3 according to the roughness single-chip microcomputer on metal tank car surface
Pressure VT (1-3V), single-chip microcomputer set detection cycle T (1-3s) by adjustable resistance R4；See Fig. 1, on single-chip microcomputer after electricity, luminous two
Pole pipe is the state extinguished, when there is negative pulse (low level≤0.7V) of 0.2S -0.5S in vehicle waveshape signal Vin, monolithic
Machine circuit reset, when negative pulse terminates, and rising pulses occurs, and rise time of the rising pulses away from negative pulse be 0.1S when
Reference voltage V J of the Vin voltages as this detection cycle, now light emitting diode light, then the timer of single-chip microcomputer start meter
When, when timing time is more than T, single-chip microcomputer reads Vin (direct current signal of 3V -7V, up to 1V -10V under extreme case), when
Roughness of the flatness of | Vin |≤VJ ± VT, i.e. surface of vehicle not less than threshold voltage, i.e. vehicle be metal tank car, monolithic
Machine exports low level, and light emitting diode is lighted, and as | Vin | ＞ VJ ± VT, i.e., the flatness of surface of vehicle is not less than threshold voltage
Roughness, i.e. vehicle is not metal tank car, and single-chip microcomputer output high level, light emitting diode extinguish.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (4)
1. a kind of metal tank car identifying device, it is characterised in that：Include the continuous wave laser range finding relative to vehicle to be identified
Instrument, the Single-chip Controlling process circuit being connected with continuous wave laser diastimeter；Described Single-chip Controlling process circuit is included
Single-chip microcomputer, an A/D modular converters, resistance R1, resistance R2, the 2nd A/D modular converters, adjustable resistance R3, the 3rd A/D moduluss of conversion
Block, adjustable resistance R4 and light emitting diode, the digital output end of a described A/D modular converters are connected with single-chip microcomputer, and first
The analog input end of A/D modular converters one end respectively with resistance R1, one end of resistance R2 are connected, the other end connection of resistance R1
The signal output part of continuous wave laser diastimeter, the other end ground connection of resistance R2, described the 2nd A/D modular converters it is digital defeated
Go out end to be connected with single-chip microcomputer, the analog input end of the 2nd A/D modular converters is connected with the control joint of adjustable resistance R3, adjustable electric
One anchor tip of resistance R3 is connected with positive source, another anchor tip ground connection of adjustable resistance R3, described the 3rd A/D conversions
The digital output end of module is connected with single-chip microcomputer, and analog input end and the adjustable of adjustable resistance R4 of the 3rd A/D modular converters connect
Head connection, an anchor tip of adjustable resistance R4 are connected with positive source, another anchor tip ground connection of adjustable resistance R4, described
The negative pole of light emitting diode be connected with the output control terminal of single-chip microcomputer, the positive pole of light emitting diode connection positive source.
2. a kind of metal tank car recognition methodss according to claim 1, it is characterised in that：Continuous wave laser diastimeter first
Relative to the continuous laser of vehicle emissions of traveling, the detection of continuous wave laser diastimeter obtains corresponding vehicle waveshape signal, so
Vehicle waveshape signal Vin is sent to the single-chip microcomputer of Single-chip Controlling process circuit afterwards, according to the roughness on metal tank car surface
Single-chip microcomputer sets threshold voltage VT by adjustable resistance R3, and single-chip microcomputer sets detection cycle T by adjustable resistance R4；When vehicle ripple
When the negative pulse of 0.2S -0.5S occurs in shape signal Vin, single chip circuit resets, when negative pulse terminates, and rising pulses occurs,
And rise time of the rising pulses away from negative pulse be 0.1S when Vin voltages as this detection cycle reference voltage V J, then
The timer of single-chip microcomputer starts timing, and when timing time is more than T, single-chip microcomputer reads Vin, as | Vin |≤VJ ± VT, i.e. vehicle
Roughness of the flatness on surface not less than threshold voltage, i.e. vehicle be metal tank car, single-chip microcomputer output low level, light-emitting diodes
Pipe is lighted, when | Vin | ＞ VJ ± VT, i.e. roughness of the flatness of surface of vehicle not less than threshold voltage, i.e. vehicle are not gold
Category tank car, single-chip microcomputer output high level, light emitting diode extinguish.
3. a kind of metal tank car recognition methodss according to claim 2, it is characterised in that：On described single-chip microcomputer after electricity,
Light emitting diode be extinguish state, when rise time of the rising pulses away from negative pulse be 0.1S when, read VJ, now light two
Pole pipe is lighted, i.e., when it is metal tank car to detect vehicle, light emitting diode maintainings lights state, when detection vehicle is not canister
Che Shi, light emitting diode are transformed to OFF state.
4. a kind of metal tank car recognition methodss according to claim 2, it is characterised in that：Described threshold voltage VT is 1-
3V, described detection cycle T are 1-3s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611130824.6A CN106595536A (en) | 2016-12-09 | 2016-12-09 | Identification apparatus and method of metal tank car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611130824.6A CN106595536A (en) | 2016-12-09 | 2016-12-09 | Identification apparatus and method of metal tank car |
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| Publication Number | Publication Date |
|---|---|
| CN106595536A true CN106595536A (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611130824.6A Pending CN106595536A (en) | 2016-12-09 | 2016-12-09 | Identification apparatus and method of metal tank car |
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|---|---|---|---|---|
| US20080180697A1 (en) * | 2006-12-20 | 2008-07-31 | Disco Corporation | Measuring instrument and laser beam machine for wafer |
| CN201780509U (en) * | 2010-07-29 | 2011-03-30 | 上海梅山钢铁股份有限公司 | Precision positioning device for continuous casting machine tundish car |
| CN202011407U (en) * | 2011-03-09 | 2011-10-19 | 大连民族学院 | Rail profile gauge |
| CN103868477A (en) * | 2014-03-28 | 2014-06-18 | 山东颐荣集团有限公司 | Wall flatness measuring instrument and measuring method thereof |
| CN104197859A (en) * | 2014-08-07 | 2014-12-10 | 安徽秋田电子有限公司 | Tank car recognition system |
-
2016
- 2016-12-09 CN CN201611130824.6A patent/CN106595536A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080180697A1 (en) * | 2006-12-20 | 2008-07-31 | Disco Corporation | Measuring instrument and laser beam machine for wafer |
| CN201780509U (en) * | 2010-07-29 | 2011-03-30 | 上海梅山钢铁股份有限公司 | Precision positioning device for continuous casting machine tundish car |
| CN202011407U (en) * | 2011-03-09 | 2011-10-19 | 大连民族学院 | Rail profile gauge |
| CN103868477A (en) * | 2014-03-28 | 2014-06-18 | 山东颐荣集团有限公司 | Wall flatness measuring instrument and measuring method thereof |
| CN104197859A (en) * | 2014-08-07 | 2014-12-10 | 安徽秋田电子有限公司 | Tank car recognition system |
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Application publication date: 20170426 |