CN2849715Y - Contactless CCD high-speed dynamic detector - Google Patents
Contactless CCD high-speed dynamic detector Download PDFInfo
- Publication number
- CN2849715Y CN2849715Y CNU2005200470111U CN200520047011U CN2849715Y CN 2849715 Y CN2849715 Y CN 2849715Y CN U2005200470111 U CNU2005200470111 U CN U2005200470111U CN 200520047011 U CN200520047011 U CN 200520047011U CN 2849715 Y CN2849715 Y CN 2849715Y
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- China
- Prior art keywords
- high speed
- camera
- lighting source
- speed dynamic
- dynamic detecting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
- B61L23/04—Control, warning, or like safety means along the route or between vehicles or vehicle trains for monitoring the mechanical state of the route
- B61L23/042—Track changes detection
- B61L23/047—Track or rail movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
- B61L23/04—Control, warning, or like safety means along the route or between vehicles or vehicle trains for monitoring the mechanical state of the route
- B61L23/042—Track changes detection
- B61L23/048—Road bed changes, e.g. road bed erosion
Abstract
The utility model relates to a non-contact high speed moving detection device which belongs to the rail traffic management class. The device is composed of a camera, a lighting source and computer measuring and controlling processing equipment, wherein the camera and the lighting source are respectively connected with the computer measuring and controlling processing equipment; the camera uses a CCD high-speed camera system of the charge coupling line array of field effect; the lighting source uses a surface array light source composed of a static LED super bright light emitting diodes. The utility model has the advantages that a contact system can not power off, occupy a skylight, and disturb complicated transportation order in the detecting process, and a train can be detected under a high speed running state.
Description
Technical field
The utility model relates to the railway traffic administrative class, particularly a kind of contactless CCD high speed dynamic detection device.
Background technology
At present traditional detection method is still adopted in abrasion of contact wire, rail tread wearing and tearing and the isoparametric detection of gauge, in the osculatory outage, take every index of the wear intensity and the rail that remove to measure osculatory under the situation in construction skylight.Under the very nervous situation of railway operation, thisly expend a large amount of manpower and materials, and sample point causes the requirement of incompatible contemporary railway development of the big way of personal error less.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of contactless CCD high speed dynamic detection device is provided, this device has adopted the field effect electric charge coupling line array CCD high-speed camera head and the LED light emitting diode matrix light source of suitable detection high-speed moving object physical dimension, make that detection collection density is very high, testing result is accurate.
The utility model purpose realizes being finished by following technical scheme:
The utility model is made up of camera, lighting source, computer measurement and control treatment facility, and camera wherein is connected with the computer measurement and control treatment facility respectively with lighting source.
What camera adopted is field effect electric charge coupling line array CCD high-speed camera head, and what lighting source adopted is the face array light source that the super bright light emitting diode of static LED is formed.
The utility model has the advantages that can not have a power failure, not take the skylight, not upset complicated transport order by contact net, train just can detect, and testing result is accurate under the high-speed cruising state in testing process.
Summary of drawings
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 detects schematic diagram for the utility model;
Accompanying drawing 3 is that the utility model embodiment middle orbit detects schematic diagram;
Accompanying drawing 4 is an embodiment user software system module synoptic diagram;
Accompanying drawing 5 is the embodiment schematic flow sheet of making a video recording;
Accompanying drawing 6 is an embodiment image analysis schematic flow sheet;
Accompanying drawing 7 is an embodiment GPS positioning flow synoptic diagram;
Concrete technical scheme
The utility model feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
Shown in Fig. 1-7, always representing respectively in the accompanying drawing: at the bottom of osculatory 1, video camera 2, video camera 3, data handling machine 4, observing and controlling computing machine 5, led light source 6, the car 7, primary optical axis 8, surface level 9, rail 10, rail inboard 11, the rail outside 12 with reference to label 1-12.
Embodiment 1: present embodiment is the contactless detection of dynamic at the railway abrasion of contact wire.
Present embodiment is made up of two field effect electric charge coupling line array CCD high-speed camera 2,3, LED light emitting diode face array light source 6, observing and controlling computing machine 5, data handling machines 4 that are fit to detection high-speed moving object physical dimension, wherein two high-speed cameras 2,3 and LED LED source 6 and observing and controlling computing machine 5 link to each other by network interface card, described network interface card comprises led light source control card, data collecting card, gps data capture card or the like, and observing and controlling computing machine 5 has connected and composed the computer measurement and control treatment facility with data handling machine 4.Whole device control principle flow process is shown in Fig. 4-7.
Present embodiment is provided with two computing machines altogether, and the foreground is an observing and controlling computing machine 5, is responsible for the co-ordination of ccd video camera 2,3, data collecting card, and the contour images collection of osculatory 1; The backstage is a data handling machine 4, mainly is responsible for the parsing of the contour images of osculatory, connects by network interface card between two computing machines.
The picture output signal of linear array ccd video camera 2,3 needed shooting control signals and video camera needs special data collecting card to be connected with observing and controlling computing machine 5.
The lighting source 6 that present embodiment adopts is that the face array light source of forming with the super bright light emitting diode of static LED is a unit, synthetic area is the lighting source with optically focused effect of 1.0m * 2.4m, and the selection of synthetic area herein can change according to actual needs.On the train movement direction lighting source 6 is being put on the platform of roof (need consider safe altitude this moment) with certain pitch angle, the selection at angle of inclination should make it corresponding to accepting catoptrical CCD camera.Owing to be subjected to the restriction of the camera lens depth of field, can not accurately measure at the osculatory of upper and lower displacement 100cm, can adopt the same camera of array to sample simultaneously, respectively get the deficiency that next section compensates the depth of field.
The both sides roof is installed two CCD high-speed cameras 2,3 with certain angle under osculatory 1 center, also a plurality of video cameras can be set according to actual needs, is advisable with 2-8 usually.
Described osculatory 1 refers to, and for electric locomotive provides the charged aerial condutor of tractive force, locomotive is by pantograph contact guidance electric current with it.
Usually osculatory 1 meter is zig-zag type along gauge center line ± 0.4 and sets up, 50 meters of electric pole distances, and speed second of osculatory horizontal motion is 0.5 meter during 108 kilometers train operations of speed per hour; Extreme crosswind causes that speed second of osculatory horizontal motion is 0.1 meter; The vertical height of osculatory has 0.2 meter drop under the action of gravity, and speed second of osculatory movement in vertical direction is 0.1 meter so; Osculatory is subjected to pantograph vertical direction bump, produces the compressional wave that vertical direction is propagated along osculatory, though frequency is constant when arriving the video camera top, amplitude diminishes, and speed second of osculatory movement in vertical direction is not more than 0.2 meter
Osculatory 1 amplitude of vacillating now to the left, now to the right at the volley is about each 45cm of center line both sides, and rail and platform maximum drop up and down are about 100cm.Owing to constantly rub, the bottom is similar to a smooth bronze mirror to osculatory 1 in user mode.The camera of video camera 2,3 is focused on an appointed positions, this position should be the minimum possibility height of osculatory 1, focusing on the effective width of being absorbed is 90cm, the minimum widith of 90cm for taking, again little just the bat less than all states, be exactly waste greatly again, can make the osculatory 1 attrition value precision of obtaining reduce.Go into CCD camera 2,3 when light reflexes to osculatory 1 back reflection, detected charge signal just can convert picture signal to, by corresponding image pick-up card collection after software processes.If thereby camera 2,3 incident lights are reflected light of osculatory 1, image is exactly the profile of osculatory 1.
Gray scale according to osculatory image outline line, outline line is divided into several sections, gray-scale value with every section pixel is set up quadratic function, and then obtain the extreme point and the flex point of quadratic function, highlight the crest line in image border and the image, accurately remaining height is so also just accurately obtained in the bottom of location wearing and tearing and the position of remaining part.According to the image space of osculatory in the video camera, outline line is carried out error compensation.According to the continuous coverage data of osculatory between the adjacent wire pole, can calculate the angle of osculatory and track centerline, once more outline line is carried out error compensation according to angle.
Can see in the market and resolve the sweep velocity that precision reaches 8192 * 1 pixel monochromatic line array CCD devices and can reach 50KHZ.If with ccd video camera as object of reference, relativity principle according to motion, during train operation that speed per hour is 108 kilometers, be equivalent to osculatory in X-Y plane with speed motion, if the electronic shutter time of ccd video camera is 50 microseconds less than 1 meter per second, then osculatory moves 50 microns in X-Y plane, edge of image is clearly, during 108 kilometers train operations of speed per hour simultaneously, can sample a bit every 1.5mm along working direction, therefore the result gathers the density height, and confidence level is strong.
Linear array CCD is to be the field effect charge-coupled image sensor of elementary cell with Metal-oxide-semicondutor (MOS), and CCD is the abbreviation of English Charge Coupled Devices.The row that metal-oxide=semiconductor (MOS) is single for elementary cell is arranged in have just constituted linear array CCD.The outstanding feature of charge-coupled image sensor be with electric charge as signal, be to be signal and be different from other most devices with electric current or voltage.The energy that incides linear array CCD surface photon when light meets the condition that impurity absorbs and just causes photoelectric effect greater than condition that intrinsic absorbs or wavelength take place, and produces electric charge.Linear array CCD groundwork is to produce electric charge, storage, transmission and detection charge signal.If incident light is a reflected by objects light, detected charge signal just can convert picture signal to, and for example incident light is the reflected light of osculatory, and image is exactly the profile of osculatory.
Present embodiment is equally applicable to the osculatory non-contact detection of city underground, light rail.
Embodiment 2: present embodiment is the contactless detection of dynamic at the inboard tread wearing and tearing of rail, gauge, track flatness and orbit inclination angle.
It is identical with embodiment 1 to detect ultimate principle.As shown in Figure 3,7 axis symmetria bilateralis are installed two ccd video cameras 2,3 at the bottom of the inspection vehicle car, the primary optical axis 8 of video camera 2,3 is α with 7 angle at the bottom of the car, the rail outside 12 is obtained with 7 angle β 1, β 2 at the bottom of the car in the picture position that video camera 2,3 photographs, the field angle of camera be at the bottom of ω, the car 7 and the angle of surface level 9 be θ, the video camera spacing is that d, rail 10 rail head imagings highly are respectively h1 and h2.These geometric parameters have satisfied the requirement that detects the inboard 11 tread wearing and tearing of rail, gauge, track flatness and orbit inclination angle.
The inboard 11 treads wearing and tearing of detection rail: rail inboard, route curve place 11 is subjected to taking turns right extruding, quick abrasion, and the tread modification is big, and the imaging of left and right side rail 10 height h1＞h2 among Fig. 3 can extrapolate the degree of wear that the inboard tread of rail weares and teares thus.
Gauge detects: the image space of rail lateral surface edge in video camera is as can be known among Fig. 3, adds other parameter of Fig. 3 confession and the form parameter of rail, can obtain gauge.
The track flatness detects and the orbit inclination angle detection: by the θ among Fig. 3, β 1,2 jiaos of β and other known conditions, can extrapolate orbit inclination angle, can calculate the track flatness by the rate of change of orbit inclination angle.
The utility model in actual applications, under train high-speed cruising (speed of a motor vehicle 200-300 kilometer/hour) condition, carry out that vehicle-mounted Dynamic and Non-contact rail tread abrasion detection, vehicle-mounted Dynamic and Non-contact track dynamic rule detects, vehicle-mounted Dynamic and Non-contact track dynamic railway roadbed flatness detects, vehicle-mounted Dynamic and Non-contact track dynamic railway roadbed pitch angle is detected, vehicle-mounted Dynamic and Non-contact vehicle rocks detection etc.As adapting to train high-speed cruising condition, higher precision at faster speed,, do not take the skylight, do not upsetting the detection of finishing aspects such as rail tread wearing and tearing, railway roadbed flatness, railway roadbed pitch angle under the situation of complicated transport order, also can rock the aspect to vehicle detects, for safety of railway traffic provides prediction, the early warning of worker's affair aspect, science decision maintenance time and scale provide reliable basis.
Claims (7)
1, a kind of contactless high speed dynamic detecting device is characterized in that this device is made up of camera, lighting source, computer measurement and control treatment facility, and camera wherein is connected with the computer measurement and control treatment facility respectively with lighting source.
2, a kind of contactless high speed dynamic detecting device according to claim 1, what it is characterized in that described camera employing is field effect electric charge coupling line array CCD high speed video system.
3, a kind of contactless high speed dynamic detecting device according to claim 1, what it is characterized in that described lighting source employing is the face array light source that the super bright light emitting diode of static LED is formed.
4, a kind of contactless high speed dynamic detecting device according to claim 1 is characterized in that described computer measurement and control treatment facility is made up of observing and controlling computing machine, data handling machine.
5, according to claim 1 or 4 described a kind of contactless high speed dynamic detecting devices, it is characterized in that described camera links to each other by network interface card with the observing and controlling computing machine with lighting source, described network interface card comprises data collecting card, gps data capture card and led light source control card.
6, according to claim 1 or 3 described a kind of contactless high speed dynamic detecting devices, it is characterized in that described lighting source is that the face array light source of forming with the super bright light emitting diode of static LED is a unit, synthetic area is the lighting source with optically focused effect of 1.0m * 2.4m.
7, a kind of contactless high speed dynamic detecting device according to claim 1 and 2 is characterized in that set camera is 2-8.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200470111U CN2849715Y (en) | 2005-11-29 | 2005-11-29 | Contactless CCD high-speed dynamic detector |
| CN2006101491256A CN101045459B (en) | 2005-11-29 | 2006-11-16 | Contactless CCD high speed dynamic detection device |
| PCT/CN2006/003208 WO2007062584A1 (en) | 2005-11-29 | 2006-11-29 | A high-speed dynamic detecting device of non-contact type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200470111U CN2849715Y (en) | 2005-11-29 | 2005-11-29 | Contactless CCD high-speed dynamic detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849715Y true CN2849715Y (en) | 2006-12-20 |
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ID=37522200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200470111U Expired - Lifetime CN2849715Y (en) | 2005-11-29 | 2005-11-29 | Contactless CCD high-speed dynamic detector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN2849715Y (en) |
| WO (1) | WO2007062584A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858731A (en) * | 2010-06-28 | 2010-10-13 | 成都主导科技有限责任公司 | Device for automatically detecting abrasion of pantograph pan of locomotive online |
| CN102098494A (en) * | 2010-11-15 | 2011-06-15 | 北京佳讯飞鸿电气股份有限公司 | Method and system for applying high-definition video technology in railway security |
| CN105203552A (en) * | 2015-09-18 | 2015-12-30 | 南京拓控信息科技有限公司 | 360-degree tread image detecting system and method |
| CN107364466A (en) * | 2017-07-18 | 2017-11-21 | 上海欣铁机电科技有限公司 | A kind of contactless rail polling system of rail vehicle |
| CN110987954A (en) * | 2019-12-30 | 2020-04-10 | 江南大学 | Method and system for eliminating leather surface defect detection blind area |
| CN115451826A (en) * | 2022-08-10 | 2022-12-09 | 西南交通大学 | Photogrammetry method and device for geometric parameters of contact network |
Families Citing this family (3)
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| CN104614106B (en) * | 2015-01-27 | 2018-03-06 | 北京泰瑞博创科技有限公司 | High-speed railway rail stress detection device |
| CN107792116A (en) * | 2017-09-30 | 2018-03-13 | 成都安科泰丰科技有限公司 | A kind of portable conductor rail detection means and detection method |
| CN113063361A (en) * | 2021-03-29 | 2021-07-02 | 长安大学 | Symmetrical rail contact net detection device and detection method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0086200B1 (en) * | 1981-08-14 | 1990-12-05 | The Broken Hill Proprietary Company Limited | Optical determination of surface profiles |
| DE3901185A1 (en) * | 1989-01-17 | 1990-07-26 | Linsinger Maschinenbau Gmbh | METHOD AND DEVICE FOR THE CONTACTLESS MEASUREMENT OF THE DEFORMATION AND WEAR OF RAILS |
| DE19510560A1 (en) * | 1995-03-23 | 1996-09-26 | Misoph Rotraud | High speed monitor for inspecting rail profile of railway track |
| ES2155343B1 (en) * | 1998-08-12 | 2002-01-16 | Talgo Patentes | INSTALLATION AND PROCEDURE FOR MEASUREMENT OF OVALIZATION AND DIAMETER OF RAILWAY WHEELS. |
| JP3615980B2 (en) * | 2000-02-14 | 2005-02-02 | 三菱電機株式会社 | Wheel measuring device |
| JP4056910B2 (en) * | 2003-03-11 | 2008-03-05 | 財団法人鉄道総合技術研究所 | Image processing inspection equipment for ground coil of magnetic levitation railway |
| CN1519143A (en) * | 2003-04-14 | 2004-08-11 | 明 白 | System and method for visual detecting overhead contact line equipment of electric railways |
| CN2656486Y (en) * | 2003-08-27 | 2004-11-17 | 南京理工大学 | Automatic detector for checking road surface section deformation |
-
2005
- 2005-11-29 CN CNU2005200470111U patent/CN2849715Y/en not_active Expired - Lifetime
-
2006
- 2006-11-29 WO PCT/CN2006/003208 patent/WO2007062584A1/en active Application Filing
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858731A (en) * | 2010-06-28 | 2010-10-13 | 成都主导科技有限责任公司 | Device for automatically detecting abrasion of pantograph pan of locomotive online |
| CN102098494A (en) * | 2010-11-15 | 2011-06-15 | 北京佳讯飞鸿电气股份有限公司 | Method and system for applying high-definition video technology in railway security |
| CN105203552A (en) * | 2015-09-18 | 2015-12-30 | 南京拓控信息科技有限公司 | 360-degree tread image detecting system and method |
| CN107364466A (en) * | 2017-07-18 | 2017-11-21 | 上海欣铁机电科技有限公司 | A kind of contactless rail polling system of rail vehicle |
| CN110987954A (en) * | 2019-12-30 | 2020-04-10 | 江南大学 | Method and system for eliminating leather surface defect detection blind area |
| CN110987954B (en) * | 2019-12-30 | 2021-10-22 | 江南大学 | Method and system for eliminating leather surface defect detection blind area |
| CN115451826A (en) * | 2022-08-10 | 2022-12-09 | 西南交通大学 | Photogrammetry method and device for geometric parameters of contact network |
| CN115451826B (en) * | 2022-08-10 | 2023-05-30 | 西南交通大学 | Photogrammetry method and device for geometric parameters of overhead contact system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007062584A1 (en) | 2007-06-07 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |