CN103528532B - A kind of rail offset method for automatic measurement and device - Google Patents
A kind of rail offset method for automatic measurement and device Download PDFInfo
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- CN103528532B CN103528532B CN201310532535.9A CN201310532535A CN103528532B CN 103528532 B CN103528532 B CN 103528532B CN 201310532535 A CN201310532535 A CN 201310532535A CN 103528532 B CN103528532 B CN 103528532B
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- optocoupler
- measuring wheel
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Abstract
The open a kind of rail offset method for automatic measurement of the present invention and device, including step: optocoupler measuring wheel obtains the distance of distance reference stake in real time；When the distance that described optocoupler measuring wheel measures arrival reference stake is preset distance, opens ccd image sensor and take pictures；Several pictures that described ccd image sensor is shot by wired or/and wirelessly export to image recognition center；Described picture is identified and analyzes by described image recognition center, and described analysis result and the upper and lower threshold value of predetermined alarm are compared, if described analysis result is beyond described upper and lower threshold value, then described comparative result is shown on a display screen in real time, or/and by wireless device communications to general headquarters.Whether the present invention, have employed GPS and track length ranging technology combines, automatically analyze and arrive near reference stake, automatically turn on CCD and be acquired and judge, the efficiency of the orbit displacement of measuring distance rail is greatly improved.
Description
Technical field
The present invention relates to a kind of rail offset method for automatic measurement and device.
Background technology
Along with improving constantly of national economy, for the demand adapting to transport market and the competition improved on railway transportation market
Power, railway transportation constantly develops to high speed, heavy duty direction.The side-play amount of the track of railway directly determines the safety of transport
Property.In prior art, the construction of railway to carry out with reference stake for reference center the detection of rail center line, typically requires base
At quasi-stake, rail center side-play amount is grade.Owing to the reference stake quantity on rail circuit is more, manually carry out side-play amount
Measuring the most time-consuming, degree of accuracy is the highest.It is acquired by artificial or industrial CCD, then the mode of manually contrast, time-consuming takes
Power, and precision is the highest, does not reaches the millimetre-sized requirement of side-play amount.
Summary of the invention
For the problems referred to above, the present invention provides a kind of and judges whether to arrive near reference stake by analysis, automatically turns on CCD
Imageing sensor carries out rail offset method for automatic measurement and the device of image acquisition computing.
For reaching above-mentioned purpose, rail offset method for automatic measurement of the present invention, including step:
Optocoupler measuring wheel obtains the distance of distance reference stake in real time；
When the distance that described optocoupler measuring wheel measures arrival reference stake is preset distance, opens ccd image sensor and enter
Row is taken pictures；
Several pictures shot by described ccd image sensor are by wired or/and wirelessly export to image
Identification center；
Described picture is identified and analyzes by described image recognition center, and by described analysis result and predetermined alarm
Upper and lower threshold value compares,
If described analysis result is beyond described upper and lower threshold value, then described comparative result is shown on a display screen in real time,
Or/and by wireless device communications to general headquarters；
If described analysis result is between described upper and lower threshold value, then it is left intact.
Further, also including the correction that optocoupler measuring wheel is measured distance, described bearing calibration includes accumulating some
Secondary GPS sample, calculates each sample error, tries to achieve the measurement error of optocoupler measuring wheel.
Specifically, during described wireless transmission method at least includes zigbee, bluetooth, wifi, 2/3G one or more.
For reaching above-mentioned purpose, rail offset self-operated measuring unit of the present invention, including:
Optocoupler measuring wheel, obtains the distance apart from reference stake in real time；
Take pictures control module, for when described optocoupler measuring wheel measure arrive the distance of reference stake be preset distance time, open
Open ccd image sensor to take pictures；
Image processing module, for several pictures of being shot by described ccd image sensor by wired or/and wireless
Mode export to image recognition center；
Result output module, is identified described picture for described image recognition center and analyzes, and by described point
Analysis result and the upper and lower threshold value of predetermined alarm compare,
If described analysis result is beyond described upper and lower threshold value, then described comparative result is shown on a display screen in real time,
Or/and by wireless device communications to general headquarters；
If described analysis result is between described upper and lower threshold value, then it is left intact.
Further, also include error correction module, for optocoupler measuring wheel being measured the correction of distance, described correction
Method includes accumulating GPS sample several times, calculates each sample error, tries to achieve the measurement error of optocoupler measuring wheel.
Rail offset method for automatic measurement of the present invention and device, it is possible to automatic data collection, analyze in real time and pass through
Display and contact panel, carry out alarming processing, with backstage real-time Communication for Power.After can being automatically positioned now, it is possible to the most accurate
Near reference stake, open CCD take pictures, and due to the development of hardware, data process can be carried out the most in embedded systems
View data, when reach alarm or note abnormalities information time, notify tester with various optoacoustics, pinpoint the problems in time；Or
Person is by wireless module notice backstage or general headquarters.Prior art is owing to can not be automatically positioned distance, it is therefore desirable to people notes surveying
Whether examination instrument arrives near reference stake, manually opened takes pictures.Compared with prior art, information data transmission of the present invention is timely and smart
Really.
Accompanying drawing explanation
Fig. 1 is the flow chart of rail offset method for automatic measurement of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.
As it is shown in figure 1, the present embodiment rail offset method for automatic measurement, including step:
Optocoupler measuring wheel obtains the distance of distance reference stake in real time；
When the distance that described optocoupler measuring wheel measures arrival reference stake is preset distance, opens ccd image sensor and enter
Row is taken pictures；
Several pictures shot by described ccd image sensor are by wired or/and wirelessly export to image
Identification center；
Described picture is identified and analyzes by described image recognition center, and by described analysis result and predetermined alarm
Upper and lower threshold value compares,
If described analysis result is beyond described upper and lower threshold value, then described comparative result is shown on a display screen in real time,
Or/and by wireless device communications to general headquarters；
If described analysis result is between described upper and lower threshold value, then it is left intact.
Further, also including the correction that optocoupler measuring wheel is measured distance, described bearing calibration includes accumulating some
Secondary GPS sample, calculates each sample error, tries to achieve the measurement error of optocoupler measuring wheel.
Specifically, during described wireless transmission method at least includes zigbee, bluetooth, wifi, 2/3G one or more.
The present embodiment rail offset self-operated measuring unit, including:
Optocoupler measuring wheel, obtains the distance apart from reference stake in real time；
Take pictures control module, for when described optocoupler measuring wheel measure arrive the distance of reference stake be preset distance time, open
Open ccd image sensor to take pictures；
Image processing module, for several pictures of being shot by described ccd image sensor by wired or/and wireless
Mode export to image recognition center；
Result output module, is identified described picture for described image recognition center and analyzes, and by described point
Analysis result and the upper and lower threshold value of predetermined alarm compare,
If described analysis result is beyond described upper and lower threshold value, then described comparative result is shown on a display screen in real time,
Or/and by wireless device communications to general headquarters；
If described analysis result is between described upper and lower threshold value, then it is left intact.
Further, also include error correction module, for optocoupler measuring wheel being measured the correction of distance, described correction
Method includes accumulating GPS sample several times, calculates each sample error, tries to achieve the measurement error of optocoupler measuring wheel.
Present invention employs GPS and track length ranging technology combines, automatically analyze and whether arrive near reference stake, automatically
Open CCD be acquired and judge, the efficiency of the orbit displacement of measuring distance rail is greatly improved.
Optocoupler range error is the least, but there is cumulative error, it is therefore desirable to first directly found range by optocoupler in early stage
Control CCD and arrive the unlatching photograph of appointment position, after have accumulated certain GPS sample, try to achieve the error coefficient of optocoupler range finding, thus
Obtain the distance of optocoupler range finding and the conversion relation of actual distance, accurately control CCD and specifying position to open photograph.
1 GPS accurate once per second pulse
2 record per second time optocoupler range findings, owing to the optocoupler every error of meter of range finding is fixed, and concordance is fine, the most linearly
Feature, if actual distance per second is x, optocoupler range finding is a, then x=(1-α) a, and α is linearity error coefficient, waits to ask.
3 set GPS distance per second as b, and someone has proved the error of GPS is Bai Song distribution, is set to actual distance coefficient
β, can calculate the beta coefficient in x=β b by a certain amount of data
4 calculate due to β, then can get β b=(1-α) a, α=1-β b/a
5 need due to image recognition algorithm, and industrial CCD not can exceed that 6m, and it is generally required to 6 figures away from reference stake distance
Sheet just can try to achieve more accurate deviation, and it is public less than 108 that high-speed CCD the most at least can reach 30 frames/second, i.e. tester speed
In/hour, requirement can be met in the case of theory
6 assume that tester gait of march is s meter per second, 6 (1-α) > 6*1/30*s=>
S < 30 (1-α), i.e. speed are less than (1-α) 108 kilometers/hour
7 actual tests, α is generally less than 5 ‰, when speed is less than 54 kilometers/hour, i.e. 15 meter per seconds, if the distance of 3m
Just can shoot 6 photos, now maximum error reaches 3m, calculates according to 5 ‰, needs 600 meters could accumulate to 3m, now receives
The GPS distance sample of collection has reached 600/15=50 second, collection per second, i.e. have collected 50 GPS samples, can calculate
Drawing β, then calculate α, after drawing α, calculating afterwards can automatically turn on, when calculating actual distance reference stake position
When being set to 6 meters, open CCD and take pictures
Rail offset method for automatic measurement of the present invention and device, it is possible to automatic data collection, analyze in real time and pass through
Display and contact panel, carry out alarming processing, with backstage real-time Communication for Power.After can being automatically positioned now, it is possible to the most accurate
Near reference stake, open CCD take pictures, and due to the development of hardware, data process can be carried out the most in embedded systems
View data, when reach alarm or note abnormalities information time, notify tester with various optoacoustics, pinpoint the problems in time；Or
Person is by wireless module notice backstage or general headquarters.Prior art is owing to can not be automatically positioned distance, it is therefore desirable to people notes surveying
Whether examination instrument arrives near reference stake, manually opened takes pictures.Compared with prior art, information data transmission of the present invention is timely and smart
Really.
Above, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with basis
Those skilled in the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, all should contain
Within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim is defined.
Claims (5)
1. a rail offset method for automatic measurement, it is characterised in that include step:
Optocoupler measuring wheel obtains the distance of distance reference stake in real time；
When the distance that described optocoupler measuring wheel measures arrival reference stake is preset distance, opens ccd image sensor and clap
According to；
Several pictures that described ccd image sensor is shot by wired or/and wirelessly export to image recognition
Center；
Described picture is identified and analyzes by described image recognition center, and by described analysis result and predetermined alarm,
Lower threshold value compares,
If described analysis result is beyond described upper and lower threshold value, then described comparative result is shown on a display screen in real time, or/
With by wireless device communications to general headquarters；
If described analysis result is between described upper and lower threshold value, then it is left intact.
Rail offset method for automatic measurement the most according to claim 1, it is characterised in that also include optocoupler measuring wheel
The correction of measurement distance, described bearing calibration includes accumulating GPS sample several times, calculates each sample error, asks
Obtain the measurement error of optocoupler measuring wheel.
Rail offset method for automatic measurement the most according to claim 1, it is characterised in that described wireless transmission method is extremely
Include one or more in zigbee, bluetooth, wifi, 2/3G less.
4. a rail offset self-operated measuring unit, it is characterised in that including:
Optocoupler measuring wheel, obtains the distance apart from reference stake in real time；
Take pictures control module, for when described optocoupler measuring wheel measure arrive the distance of reference stake be preset distance time, open CCD
Imageing sensor is taken pictures；
Image processing module, for several pictures of being shot by described ccd image sensor by wired or/and wireless side
Formula exports to image recognition center；
Result output module, is identified described picture for described image recognition center and analyzes, and analyzes knot by described
Fruit and the predetermined upper and lower threshold value of alarm compare,
If described analysis result is beyond described upper and lower threshold value, then described comparative result is shown on a display screen in real time, or/
With by wireless device communications to general headquarters；
If described analysis result is between described upper and lower threshold value, then it is left intact.
Rail offset self-operated measuring unit the most according to claim 4, it is characterised in that also include error correction mould
Block, for optocoupler measuring wheel is measured the correction of distance, described bearing calibration includes accumulating GPS sample several times, to each
Sample error calculates, and tries to achieve the measurement error of optocoupler measuring wheel.
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| CN201310532535.9A CN103528532B (en) | 2013-11-01 | 2013-11-01 | A kind of rail offset method for automatic measurement and device |
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| CN201310532535.9A CN103528532B (en) | 2013-11-01 | 2013-11-01 | A kind of rail offset method for automatic measurement and device |
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| CN103528532B true CN103528532B (en) | 2017-01-04 |
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| CN105606074A (en) * | 2016-03-08 | 2016-05-25 | 苏州热工研究院有限公司 | Auxiliary on-site inspection method |
| CN106705862B (en) * | 2016-12-30 | 2019-08-02 | 株洲时代电子技术有限公司 | A kind of track quick track switching operating operation sleeper bolt method for detecting position |
| CN107339950B (en) * | 2016-12-30 | 2019-08-02 | 株洲时代电子技术有限公司 | A kind of track quick track switching operating operation sleeper bolt position detecting system and method |
| CN108398105B (en) * | 2017-02-05 | 2021-02-26 | 钱浙滨 | Track deviation measurement method, device and system |
| CN109398417A (en) * | 2018-11-15 | 2019-03-01 | 合肥工业大学 | Subway work temporary track vehicle derailing early warning mechanism and subway work temporary track vehicle transportation system |
| CN109827507B (en) * | 2019-01-22 | 2021-05-25 | 上海蔚来汽车有限公司 | Visual positioning battery replacement method and battery replacement system based on fixed-focus camera |
| CN109931889B (en) * | 2019-03-27 | 2021-04-06 | 中铁大桥科学研究院有限公司 | Deviation detection system and method based on image recognition technology |
| CN110230985B (en) * | 2019-07-22 | 2021-03-02 | 株洲时代电子技术有限公司 | Sleeper bolt detection device |
| CN113137925A (en) * | 2021-01-28 | 2021-07-20 | 重庆浙大网新科技有限公司 | Intelligent dynamic displacement measurement system based on image recognition |
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| JP5502681B2 (en) * | 2010-09-28 | 2014-05-28 | 東海旅客鉄道株式会社 | Tong rail contact state measuring device and tong gleil wear amount measuring device |
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|---|---|---|---|---|
| US5199176A (en) * | 1990-11-12 | 1993-04-06 | Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. | Apparatus for the non-contact measurement of a track gage |
| CN102897192A (en) * | 2012-10-18 | 2013-01-30 | 成都唐源电气有限责任公司 | Detection system for urban railway traffic contact rail and detection method thereof |
| CN203203566U (en) * | 2013-04-11 | 2013-09-18 | 闫旭 | On-line rail gauge measuring meter |
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