CN101913360A - Detection and protection device of fixed hooks on train - Google Patents
Detection and protection device of fixed hooks on train Download PDFInfo
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- CN101913360A CN101913360A CN 201010242791 CN201010242791A CN101913360A CN 101913360 A CN101913360 A CN 101913360A CN 201010242791 CN201010242791 CN 201010242791 CN 201010242791 A CN201010242791 A CN 201010242791A CN 101913360 A CN101913360 A CN 101913360A
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Abstract
The invention relates to a detection and protection device of fixed hooks on a train, which is mainly characterized in that marking regions of different colors are respectively coated on two lateral surfaces of each carriage provided with a movable hook and on two lateral surfaces of each carriage provided with a fixed hook; a camera is arranged at a fixed position on a lateral surface in the traveling direction when each carriage of the train enters a dump house; the camera acquires the images of the color marking regions of two adjacent carriages of the train and then transfers the images to a detection and control computer; the detection and control computer extracts the color marking regions of two adjacent carriages by adopting an image processing algorithm and judges whether fixed hooks or movable hooks exist according to the color; if the movable hooks exist, the next carriage is continuously detected; and if the fixed hook exist, the detection and control computer sends a warning signal to an operating room so that an operator can correspondingly adjust the dump sequence of the carriages. The invention can realize accurate detection under various climate and illumination conditions, has stable result and low cost, and avoids the visual error caused by visual indication of workers and the influence caused by other artificial factors.
Description
Technical field the present invention relates to a kind of detecting device, especially for the device that detects dead hook between railway carriage.
Background technology is present, at industrial sectors such as the big harbour of transportation volume, metallurgy, coal and thermoelectricity, the train discharging generally is to adopt tipper to carry out discharging, be that positioning car promotion railway carriage enters dump house, three joint compartments are one group, under the effect of the big arm that overturns, three joint compartment side direction upsets simultaneously, by gravity topples over the material in the compartment to go out, and by following belt conveyor material is transported.(hook not only links to each other with the hook base hook but both sides, every joint compartment one side is for living, but also can in the hook base, rotate), opposite side is that (hook only links to each other with the hook base dead hook, can not in the hook base, rotate), two gib heads at three joint two ends, compartment of this upset will have one to be the normal operation that hook alive could guarantee tipper at least.But in railway transport course; through regular meeting the compartment is rearranged combination; in case fixed hooks on train phenomenon (two gib heads that promptly connect the compartment are dead hook) occurs; tipper continues operation may damage gib head, clip wheel device and positioning car bearing in reduction gears; also may cause the train accident that slides down when serious; not only influence production efficiency, also caused the tremendous economic loss simultaneously.In order to prevent that above-mentioned accident from taking place, each enterprise have to adopt manually and estimate for the dead hook of train.Its weak point is: not only waste of manpower, but also may be because human element produces false judgment.Therefore, need a kind of reliable technique means badly and be used for dead hook detection, avoid the generation of accident.
Summary of the invention the object of the present invention is to provide a kind of detection and fender guard that can accurately, stably detect the fixed hooks on train of dead hook between railway carriage.Whether the present invention mainly is a kind of based on image processing techniques, exist the fixed hooks on train of dead hook phenomenon to detect and fender guard by compartment color mark region decision.
Method of the present invention mainly is:
1, pretreatment: the two sides in that the every joint of train compartment is established the two sides of hook alive and established dead hook scribble the different colours marked region respectively.
2, gather image: a certain fixed position, the side of direct of travel is provided with photographic camera before railway carriage enters dump house, preferably this fixed position is the position between the 3rd joint and the 4th joint compartment, so both given and detected the image processing time that control computer leaves abundance, do not influenced the processing of following detection and dead hook phenomenon again.Obtain distinct image during for illumination such as assurance night or cloudy day deficiency, this photographic camera is provided with the flash light of interlock.Preferably adopt industrial camera, be provided with protective case, it is damaged to prevent the sleet dust storm in above-mentioned photographic camera outside.
3, image processing: after above-mentioned photographic camera obtains the image in adjacent two joint railway carriage color mark zones, be delivered to and detect in the control computer, this detects control computer and adopts image processing algorithm, adjacent two compartment color mark extracted region are come out, and judge it is dead hook or hook alive according to its color, the hook of living in this way then continues to detect next joint compartment, dead in this way hook then detects control computer promptly to the operator's compartment signal that gives the alarm, operating personal can adjust accordingly in proper order to the compartment overturning, avoids having an accident.
The present invention compared with prior art has following advantage:
1, the present invention can realize accurately detecting under various weathers and illumination condition, and the result is stable, cost is low, the influence of having avoided the collimation error that staff's range estimation brings and other human element to bring.
2, image processing algorithm can detect dead hook fault apace according to characteristics of image, and in time feeds back to operator's compartment, so this method plays warning and the protective effect that prevents that gib head from being damaged by tipper again.
3, Touchless manipulation, the staff need not go out the scene, the service conditions of not only having improved, and safety of operation.
Description of drawings
Fig. 1 is a simplified schematic diagram of the present invention.
Drawing reference numeral: the 1-front compartment, the 2-trunk, color mark zone, 3-compartment, the 4-gib head, the 5-photographic camera, the 6-protective case, the 7-flash light, 8-detects control computer.
The specific embodiment
1 couple of the present invention is described further below in conjunction with accompanying drawing.In the simplified schematic diagram of the detection of fixed hooks on train shown in Figure 1 and fender guard; the two sides of establishing the two sides of hook alive and establishing dead hook in the every joint of train compartment; scribble the different colours marked region respectively, orange representative hook alive, black (identical with the car body color) is represented dead hook.The side of direct of travel and compartment are provided with industrial camera apart from the position that is about 5 meters before railway carriage enters dump house, and this fixed position is the position between the 3rd joint and the 4th joint compartment just.This photographic camera is provided with the flash light of interlock.Be provided with protective case with thermostatic control function and rain brush in the outside of above-mentioned industrial camera.After above-mentioned photographic camera obtains the image in adjacent two joint railway carriage color mark zones, be sent in the detection control computer through twisted-pair feeder by gigabit ethernet interface, in detecting control computer, use the visual c++ coding to be used for the image that obtains is analyzed.At first adopt the marginal information in the template sobel operator extraction image commonly used in the rim detection, and the color mark zone is separated from image and be used for color analysis according to marginal information.Analyze the histogram distribution situation of R in the color digital image (redness), G (green), three Color Channels of B (blueness) then, the orange threshold interval at each Color Channel in statistics color mark zone, compartment is respectively [70,135], [50,90], [45,75].Surpass predefined ratio 75% if be distributed in the pixel quantity of orange threshold interval, then think this color mark zone, compartment for orange, it is cooresponding to be the hook of living; Otherwise, then be dead hook.The hook of living in this way then continues to detect next joint compartment, and dead in this way hook then detects control computer promptly to the operator's compartment signal that gives the alarm, and operating personal can adjust accordingly in proper order to the compartment overturning, avoids having an accident.According to compartment color mark region decision live hook or dead hook, its difficult point is that the surface, compartment adheres to a large amount of spots sometimes and have influence on the accuracy rate of identification.In order to address this problem, use Otsu automatic threshold method to carry out image to the color mark zone and cut apart, with the pixel deletion of stained region, the influence of avoiding spot that color recognition is caused improves the accuracy rate of identification then.
The method of adjustment of damned hook: when detecting the hook of certain two joint between compartments and be dead hook, and this hook just in time is in an adjacent joint compartment rotation again, another saves motionless position, compartment, then detect control computer and send signal to electric control system, this electric control system is adjusted the positioning car thrust unit, be about to two joint material compartments and push dump house, replenish a joint empty wagons railway carriage or compartment by the dump house opposite side again, like this by turning over two joint material compartments and a joint empty wagons railway carriage or compartment can adjust.In like manner,, then a joint material compartment can be pushed dump house, replenish two joint empty wagons railway carriage or compartments by the dump house opposite side again, like this by turning over a joint material compartment and two joint empty wagons railway carriage or compartments can adjust if detect continuous two hooks when being dead hook.Be dead hook if detect continuous three hooks, sudden stop then, otherwise processed.
Claims (4)
1. the detection of a fixed hooks on train and fender guard is characterized in that:
(1) two sides of establishing the two sides of hook alive and establishing dead hook in the every joint of train compartment scribble the different colours marked region respectively;
(2) a certain fixed position, the side of direct of travel is provided with photographic camera before railway carriage enters dump house;
(3) after above-mentioned photographic camera obtains the image in adjacent two joint railway carriage color mark zones, be delivered to and detect in the control computer, this detects control computer and adopts image processing algorithm, adjacent two compartment color mark extracted region are come out, and judge it is dead hook or hook alive according to its color, the hook of living in this way then continues to detect next joint compartment, and dead in this way hook then detects control computer promptly to the operator's compartment signal that gives the alarm, and operating personal can adjust accordingly in proper order to the compartment overturning.
2. the detection of fixed hooks on train according to claim 1 and fender guard is characterized in that: the photographic camera fixed position is the 3rd joint and the 4th position of saving between the compartment.
3. the detection of fixed hooks on train according to claim 1 and 2 and fender guard, it is characterized in that: this photographic camera is provided with the flash light of interlock.
4. the detection of fixed hooks on train according to claim 3 and fender guard is characterized in that: above-mentioned photographic camera employing industrial camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010242791A CN101913360B (en) | 2010-08-03 | 2010-08-03 | Detection and protection device of fixed hooks on train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010242791A CN101913360B (en) | 2010-08-03 | 2010-08-03 | Detection and protection device of fixed hooks on train |
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| Publication Number | Publication Date |
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| CN101913360A true CN101913360A (en) | 2010-12-15 |
| CN101913360B CN101913360B (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010242791A Expired - Fee Related CN101913360B (en) | 2010-08-03 | 2010-08-03 | Detection and protection device of fixed hooks on train |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530012A (en) * | 2012-03-12 | 2012-07-04 | 大连华锐重工集团股份有限公司 | Automatic detecting device for wrong hooks of special gondola |
| CN103600752A (en) * | 2013-09-18 | 2014-02-26 | 大连华锐重工集团股份有限公司 | Automatic detection device for special gondola car hook mistake and detection method of special gondola car hook mistake |
| CN103901499A (en) * | 2014-04-18 | 2014-07-02 | 燕山大学 | C80 vehicle body surface foreign object detection device and method based on three-dimensional reconstruction technology |
| CN108217222A (en) * | 2017-12-29 | 2018-06-29 | 中交机电工程局有限公司 | The four of compartment antiposition train work accident is avoided to double vehicle device automatic job algorithm |
| CN110470248A (en) * | 2019-08-27 | 2019-11-19 | 上海航天控制技术研究所 | A kind of hitch centering method for automatic measurement |
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| CN201907507U (en) * | 2010-08-03 | 2011-07-27 | 燕山大学 | Detecting and protecting device for fixed hooks of train |
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2010
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530012A (en) * | 2012-03-12 | 2012-07-04 | 大连华锐重工集团股份有限公司 | Automatic detecting device for wrong hooks of special gondola |
| CN103600752A (en) * | 2013-09-18 | 2014-02-26 | 大连华锐重工集团股份有限公司 | Automatic detection device for special gondola car hook mistake and detection method of special gondola car hook mistake |
| CN103901499A (en) * | 2014-04-18 | 2014-07-02 | 燕山大学 | C80 vehicle body surface foreign object detection device and method based on three-dimensional reconstruction technology |
| CN103901499B (en) * | 2014-04-18 | 2017-04-12 | 燕山大学 | C80 vehicle body surface foreign object detection device and method based on three-dimensional reconstruction technology |
| CN108217222A (en) * | 2017-12-29 | 2018-06-29 | 中交机电工程局有限公司 | The four of compartment antiposition train work accident is avoided to double vehicle device automatic job algorithm |
| CN108217222B (en) * | 2017-12-29 | 2019-11-26 | 中交机电工程局有限公司 | The four of compartment antiposition train work accident is avoided to double vehicle device automatic job algorithm |
| CN110470248A (en) * | 2019-08-27 | 2019-11-19 | 上海航天控制技术研究所 | A kind of hitch centering method for automatic measurement |
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| Publication number | Publication date |
|---|---|
| CN101913360B (en) | 2012-10-24 |
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