CN104457588A - Method for detecting mounting height of key position - Google Patents
Method for detecting mounting height of key position Download PDFInfo
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- CN104457588A CN104457588A CN201410791117.6A CN201410791117A CN104457588A CN 104457588 A CN104457588 A CN 104457588A CN 201410791117 A CN201410791117 A CN 201410791117A CN 104457588 A CN104457588 A CN 104457588A
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- key position
- setting height
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- train
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Abstract
The invention provides a method for detecting mounting height of a key position. The method comprises the steps that a structural light source is projected to the key position; an image including the key position and a light strip formed by the structural light source at the key position is collected; the position of the key position in the image is recognized; the intersection point of the key position and a track is determined according to the light stripe; preset standard data are adopted as a reference, the distance between the intersection point and the track is determined as the mounting height information of the key position; whether the mounting height information of the key position exceeds a preset range or not is judged, and if the mounting height information of the key position exceeds the preset range, it is displayed that the mounting height of the key position exceeds the limit. According to the detecting method, the mounting height information of the key position of a train can be captured accurately in a structural light imaging mode when the train passes, calculation is carried out in time, and whether the mounting height information of the key position of the train exceeds the standard or not is judged. Therefore, detection efficiency is higher than that of a manual mode, and precision is higher.
Description
Technical field
The present invention relates to train detection field, particularly relate to a kind of method detecting key position setting height(from bottom).
Background technology
21 century, Chinese Railway strides into the epoch of high speed passenger transportation, Heavy-haul Freight.New vehicle speed is higher, and safety problem is more outstanding, also correspondingly promotes the testing requirement of train safe performance.More to the Detection of content of locomotive, the frequency of detection is also higher.To in the process of train detection, need the setting height(from bottom) of the key position to train to detect, if these key position setting height(from bottom)s do not meet standard, be easy to cause the derailing of train or the major accident such as to topple.
The current detection mode for train key position setting height(from bottom) is manually carried instrument often and is measured under train non-operating state, and not only detection time is long, and precision is also not high enough.
Summary of the invention
The object of this invention is to provide a kind of method detecting key position setting height(from bottom), to reduce the detection time of train key position setting height(from bottom) and to improve accuracy of detection.
Detect a method for key position setting height(from bottom), comprising:
To described key position projective structure light source;
Gather the image comprising the striations that described key position and described structure light source are formed at described key position;
Identify the position of key position in described image;
The intersection point of described key position and track is determined according to described striations;
With preset standard data for reference, determine the setting height(from bottom) information of the distance of described intersection point and described track as described key position;
Judge whether the setting height(from bottom) information of described key position exceeds preset range, if exceed preset range, the setting height(from bottom) showing described key position transfinites.
Preferably, exceed preset range described in then to show described setting height(from bottom) and transfinite and also comprise:
The image of the striations that described key position and described structure light source are formed at described key position is comprised described in display.
Preferably, describedly judge whether the setting height(from bottom) information of described key position exceeds preset range and comprise:
Whether the setting height(from bottom) information judging described train cowcatcher is lower than the minor increment of described cowcatcher bottom surface and described track top levels.
Preferably, describedly judge whether the setting height(from bottom) information of described key position exceeds preset range and also comprise:
Judge whether the setting height(from bottom) information of described train cowcatcher is greater than the ultimate range of described cowcatcher bottom surface and described track top levels.
Preferably, the setting height(from bottom) of the described key position of described display transfinites and comprises:
The setting height(from bottom) showing described cowcatcher transfinites.
Preferably, describedly judge whether the setting height(from bottom) information of described key position exceeds preset range and comprise:
Judge that whether described train sweeps the setting height(from bottom) information of stone implement lower than described minor increment of sweeping stone implement bottom surface and described track top levels.
Preferably, describedly judge whether the setting height(from bottom) information of described key position exceeds preset range and also comprise:
Judge the setting height(from bottom) information that stone implement swept by described train sweeps the ultimate range of stone implement bottom surface and described track top levels described in whether being greater than.
Preferably, show described in that the setting height(from bottom) of described key position transfinites to comprise:
The setting height(from bottom) of sweeping stone implement described in display transfinites.
Preferably, describedly to described key position projective structure light source be:
To described key position incident line structured light.
Preferably, exceed preset range if described, also comprise after showing the setting height(from bottom) information of described key position:
Carry out alarm.
Therefore, the present invention has following beneficial effect:
A kind of method detecting key position setting height(from bottom) provided by the invention, like this can in the setting height(from bottom) information of train through out-of-date accurate seizure train key position by the mode of structure light imaging, timely calculating, judges whether the setting height(from bottom) information of train key position exceeds standard.Therefore do not need again by manual measurement, the efficiency that method provided by the invention detects key position setting height(from bottom) is higher, and precision is also higher.
Accompanying drawing explanation
Fig. 1 is a kind of method flow schematic diagram detecting key position setting height(from bottom) provided by the invention;
Fig. 2 is the method flow schematic diagram that another kind provided by the invention detects key position setting height(from bottom).
Embodiment
Core of the present invention is to provide a kind of method detecting key position setting height(from bottom).
In order to make those skilled in the art person understand the solution of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Disclosed by the inventionly a kind ofly detect in the method for key position setting height(from bottom), see Fig. 1, this embodiment comprises the following steps:
S101, to key position projective structure light source.
When detecting key position, detecting in structured light mode, thus first for key position projective structure light source, making it on key position, project specific striations.
S102, gather the image comprising the striations that described key position and described structure light source are formed at described key position.
Concrete, when gathering image, need the sharpness guaranteeing that image is certain.If sharpness does not reach, then can cause the larger error of calculation, thus cause judging that train key position setting height(from bottom) accuracy rate reduces.
Certainly, in order to clearly gather image, need certain illumination, therefore, need to provide suitable illuminating with light source to key position, when guaranteeing to gather image, key position and striations all can clearly show in the picture.
S103, identify the position of key position in described image.
S104, determine the intersection point of described key position and track according to described striations.
, determine the position of key position in image here, the imaging in the picture of identification key position and track, accurately could determine the intersection point of key position and track.If the two position is unclear, also can cause misjudgment, and then affect the accuracy of this detection.
S105, with preset standard data for reference, determine the setting height(from bottom) information of the distance of described intersection point and described track as described key position.
S106, judge whether the setting height(from bottom) information of described key position exceeds preset range, if exceed preset range, the setting height(from bottom) showing described key position transfinites.
Concrete, the key position setting height(from bottom) preset range of different train is different.Therefore, in the detection, need to match with the concrete model of key position place train to transfer the preset range of concrete key position setting height(from bottom).
A kind of method detecting key position setting height(from bottom) provided by the invention, like this can in the setting height(from bottom) information of train through out-of-date accurate seizure train key position by the mode of structure light imaging, timely calculating, judges whether the setting height(from bottom) information of train key position exceeds standard.Therefore do not need again by manual measurement, the efficiency that method provided by the invention detects key position setting height(from bottom) is higher, and precision is also higher.
Disclosed by the inventionly a kind ofly detect in the method for key position setting height(from bottom), see Fig. 2, this embodiment comprises the following steps:
S201, to train cowcatcher incident line structured light light source.
Certainly, in order to exactly to cowcatcher projective structure light source, mounting structure light projector in advance can be needed, and adjusts to suitable angle to it.Concrete, in other examples, when detecting other key positions as swept the setting height(from bottom) of stone implement, can in the outside of two tracks mounting structure light projector respectively, sweep stone implement respectively to left side and stone implement incident line structured light is swept on right side.Certainly, according to actual needs, can the position of adjust structure light projector and quantity.The feasible program that embodiments of the invention just propose under a concrete scene, does not represent at this and limits to some extent the installation site of structured light projector and quantity.
S202, gather the image comprising the striations that train cowcatcher and line structure light source are formed at cowcatcher.
When gathering image, camera can be adopted other also can be adopted to have the equipment of image collecting function as the equipment gathering image.
Each key position sharpness for the train of image acquisition requires to include, and the image resolution ratio of hitch needs to be less than 1mm.The image resolution ratio of cowcatcher needs to be less than 1mm.The image resolution ratio of sweeping stone implement needs to be less than 1mm.The image resolution ratio of sand pipe needs to be less than 1mm.The streaking of hitch needs to be less than 3 pixels.The streaking of cowcatcher needs to be less than 3 pixels.The streaking of sweeping stone implement needs to be less than 3 pixels.The streaking of sand pipe needs to be less than 3 pixels.
Certainly, under concrete scene, suitably image resolution requirement can be adjusted, to adapt to real work needs.
When actual needs, can also the image that arrives of storage of collected, call in order to during needs.
S203, identify the position of train cowcatcher in described image.
S204, intersection point according to described striations determination train cowcatcher and track.
S205, with preset standard data for reference, determine the setting height(from bottom) information of the distance of described intersection point and described track as described train cowcatcher.
It should be noted that, the system detecting train key position position has certain accuracy requirement to needing the parameter detected.In general, the accuracy of detection of hitch setting height(from bottom) can be ± 10mm.In other scheme, the accuracy of detection of cowcatcher setting height(from bottom) can be ± 5mm.Equally, in other scheme, the accuracy of detection of sweeping stone implement setting height(from bottom) can be ± 5mm.And the accuracy of detection of sand pipe setting height(from bottom) can be ± 5mm.Above accuracy of detection can according to objective condition specific requirement.
Certainly, under requirements at the higher level, the accuracy of detection of detection system can be brought up to: the accuracy of detection of hitch setting height(from bottom) is ± 5mm.The accuracy of detection of cowcatcher setting height(from bottom) is ± 2mm.The accuracy of detection of sweeping stone implement setting height(from bottom) is ± 2mm.The accuracy of detection of sand pipe setting height(from bottom) is ± 2mm.
S206, judge described train cowcatcher setting height(from bottom) information whether lower than the minor increment of described cowcatcher bottom surface and described track top levels, if the setting height(from bottom) information of described cowcatcher is lower than minor increment, the setting height(from bottom) showing described cowcatcher transfinites.
S207, judge whether the setting height(from bottom) information of described train cowcatcher is greater than the ultimate range of described cowcatcher bottom surface and described track top levels, if the setting height(from bottom) information of described cowcatcher is greater than ultimate range, the setting height(from bottom) showing described cowcatcher transfinites.
Concrete, for the locomotive of a certain concrete model, cowcatcher is 75 to 120mm apart from the height of rail level.Certainly, concrete minimum constructive height can be selected according to actual conditions.In an actual scene, minimum constructive height standard is selected to be 75mm.Judge that whether the setting height(from bottom) information of train cowcatcher is lower than 75mm, if lower than 75mm, illustrate that setting height(from bottom) exceeds standard, need the setting height(from bottom) showing this train cowcatcher to transfinite, to ensure that the setting height(from bottom) of this cowcatcher can be adjusted in time, ensure train safe.When selecting 120mm to be ultimate range, judge whether the setting height(from bottom) information of train cowcatcher is greater than 120mm, if be greater than 120mm, then the setting height(from bottom) also showing this train cowcatcher transfinites.
Certainly, for other key position setting height(from bottom), still for certain model locomotive concrete, hitch height is the distance of train coupler center line and track top levels, and in general, the zone of reasonableness of this distance is at 840mm to 880mm.The height sweeping stone implement is the distance that train sweeps stone implement bottom surface and track top levels, is 20mm to 25mm.The height of sand pipe is the distance of train sand pipe and track top levels, is 30mm to 55mm.
In other examples, the setting height(from bottom) information of sweeping stone implement can be detected, judge that whether train sweeps the setting height(from bottom) information of stone implement lower than described minor increment of sweeping stone implement bottom surface and track top levels, if described in sweep the setting height(from bottom) information of stone implement lower than minor increment; the setting height(from bottom) of sweeping stone implement described in showing transfinite.In a further embodiment, sweep the ultimate range of stone implement bottom surface and track top levels described in whether the setting height(from bottom) information that also can judge to sweep stone implement is greater than, if described in sweep stone implement setting height(from bottom) information be greater than ultimate range; the setting height(from bottom) of sweeping stone implement described in showing transfinite.
In other examples, can also show in addition described in comprise the image of the striations that key position and described structure light source are formed at key position.
In other examples, when showing train key position mount message, alarm is carried out.Concrete, pilot lamp or hummer can be adopted to carry out alarm.
Above a kind of method detecting key position setting height(from bottom) provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands principle of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. detect a method for key position setting height(from bottom), it is characterized in that, comprising:
To described key position projective structure light source;
Gather the image comprising the striations that described key position and described structure light source are formed at described key position;
Identify the position of key position in described image;
The intersection point of described key position and track is determined according to described striations;
With preset standard data for reference, determine the setting height(from bottom) information of the distance of described intersection point and described track as described key position;
Judge whether the setting height(from bottom) information of described key position exceeds preset range, if exceed preset range, the setting height(from bottom) showing described key position transfinites.
2. the method for claim 1, is characterized in that, described in exceed preset range and then show described setting height(from bottom) and transfinite and also comprise:
The image of the striations that described key position and described structure light source are formed at described key position is comprised described in display.
3. method as claimed in claim 1 or 2, is characterized in that, describedly judges whether the setting height(from bottom) information of described key position exceeds preset range and comprise:
Whether the setting height(from bottom) information judging described train cowcatcher is lower than the minor increment of described cowcatcher bottom surface and described track top levels.
4. method as claimed in claim 3, is characterized in that, describedly judges whether the setting height(from bottom) information of described key position exceeds preset range and also comprise:
Judge whether the setting height(from bottom) information of described train cowcatcher is greater than the ultimate range of described cowcatcher bottom surface and described track top levels.
5. method as claimed in claim 4, it is characterized in that, the setting height(from bottom) of the described key position of described display transfinites and comprises:
The setting height(from bottom) showing described cowcatcher transfinites.
6. method as claimed in claim 1 or 2, is characterized in that, describedly judges whether the setting height(from bottom) information of described key position exceeds preset range and comprise:
Judge that whether described train sweeps the setting height(from bottom) information of stone implement lower than described minor increment of sweeping stone implement bottom surface and described track top levels.
7. method as claimed in claim 6, is characterized in that, describedly judges whether the setting height(from bottom) information of described key position exceeds preset range and also comprise:
Judge the setting height(from bottom) information that stone implement swept by described train sweeps the ultimate range of stone implement bottom surface and described track top levels described in whether being greater than.
8. method as claimed in claim 7, is characterized in that, described in show that the setting height(from bottom) of described key position transfinites and comprise:
The setting height(from bottom) of sweeping stone implement described in display transfinites.
9. the method for claim 1, is characterized in that, describedly to described key position projective structure light source is:
To described key position incident line structured light.
10. method as claimed in claim 9, is characterized in that, exceed preset range if described, also comprise after showing the setting height(from bottom) information of described key position:
Carry out alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410791117.6A CN104457588A (en) | 2014-12-18 | 2014-12-18 | Method for detecting mounting height of key position |
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| CN201410791117.6A CN104457588A (en) | 2014-12-18 | 2014-12-18 | Method for detecting mounting height of key position |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111006592A (en) * | 2019-12-02 | 2020-04-14 | 西安宝利铁路器材有限公司 | Locomotive hook height monitoring device and method |
| CN111079819A (en) * | 2019-12-12 | 2020-04-28 | 哈尔滨市科佳通用机电股份有限公司 | Method for judging state of coupler knuckle pin of railway wagon based on image recognition and deep learning |
| CN111397516A (en) * | 2020-04-03 | 2020-07-10 | 哈尔滨市科佳通用机电股份有限公司 | Device and method for measuring height of signal receiving coil of railway locomotive |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111397516A (en) * | 2020-04-03 | 2020-07-10 | 哈尔滨市科佳通用机电股份有限公司 | Device and method for measuring height of signal receiving coil of railway locomotive |
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Application publication date: 20150325 |