CN110341748A - A kind of cab signal receiving coil image capturing apparatus - Google Patents
A kind of cab signal receiving coil image capturing apparatus Download PDFInfo
- Publication number
- CN110341748A CN110341748A CN201910735217.XA CN201910735217A CN110341748A CN 110341748 A CN110341748 A CN 110341748A CN 201910735217 A CN201910735217 A CN 201910735217A CN 110341748 A CN110341748 A CN 110341748A
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- Prior art keywords
- receiving coil
- signal receiving
- cab signal
- camera
- locomotive
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- 230000003137 locomotive effect Effects 0.000 claims abstract description 57
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001447 compensatory effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 16
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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 trains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/021—Measuring and recording of train speed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/45—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of cab signal receiving coil image capturing apparatus is related to a kind of locomotive image taking technology, existing to the cab signal receiving coil fastness detection method low efficiency and poor reliability that are mounted on locomotive bottom rail position directly above in order to solve the problems, such as.Two groups of shooting points of the invention are arranged at rail；Wheel detector is used to obtain the vehicle speed information and wheelbase information of locomotive, after guaranteeing that locomotive preferentially passes through wheel detector, then passes through shooting point；According to the vehicle model of wheelbase acquisition of information locomotive and the specific location of cab signal receiving coil；The camera of phase unit one and phase unit two is arranged at the two sides of every rail, and the distance of phase unit one and phase unit two is not less than 0.3 meter；The camera lens of the camera of every group of shooting point is arranged upward, and when cab signal receiving coil is between phase unit one and phase unit two, each camera is shot；Camera is located in cab signal receiving coil shooting case.Have the beneficial effect that detection efficiency height, orientation is complete.
Description
Technical field
The present invention relates to a kind of locomotive image taking technologies.
Background technique
It is used to fix machine sense coil for being mounted on the cab signal receiving coil of locomotive bottom at present, prevents machine sense coil
It falls off or shifts；Since the location of machine sense coil is the surface of locomotive bottom rail, cab signal receives line
Circle is fixed on locomotive bottom, and is in the surface of rail；And still for the fastness of cab signal receiving coil detection work
So to be completed in shopwork region by testing staff, detection means place one's entire reliance upon testing staff using video recording flashlight locomotive
Signal receiving coil carries out taking pictures to form video data, according to the screen data judge cab signal receiving coil bolt whether
It loosens, fall off or the visual cab signal receiving coil of testing staff directly judges its fastness, these detection gimmicks and means
All it is attributed to artificial detection；But since cab signal receiving coil is located at locomotive bottom and is located at the surface position of rail
It sets, artificial detection needs operator to climb into locomotive bottom, and therefore, artificial detection detection efficiency is low, and security performance is poor, and
Artificial detection fully relies on the sense of responsibility of operator, and reliability is poor.
Summary of the invention
The purpose of the present invention is to solve existing to the cab signal for being mounted on locomotive bottom rail position directly above
The problem of receiving coil fastness detection method low efficiency and poor reliability, proposes a kind of cab signal receiving coil image
Camera system.
A kind of cab signal receiving coil image capturing apparatus of the present invention includes that wheel detector, cab signal connect
Take-up circle shoots case and two groups of shooting points；
The vehicle speed information and wheelbase information that wheel detector is arranged on the side wall of rail to obtain locomotive, and guarantee machine
After vehicle preferentially passes through wheel detector, then pass through shooting point；
According to the vehicle model of the wheelbase acquisition of information locomotive and the specific location of cab signal receiving coil；
Every group of shooting point includes phase unit one and phase unit two, and the camera of the phase unit one and phase unit two is arranged at
The two sides of every rail, and the distance of phase unit one and phase unit two is not less than 0.3 meter；
The camera lens of the camera of every group of shooting point is arranged upward, when cab signal receiving coil is in phase unit one and camera
When between group two, each camera is shot；
Camera is located in cab signal receiving coil shooting case.
The operation principle of the present invention is that: the present invention is set on the route of train storage, to be examined automatically to locomotive
It surveys the fastness of its cab signal receiving coil and obtains train when train wheel rolls the wheel detector on rail first
Vehicle speed information and wheelbase information are compared according to the wheelbase information with the wheelbase information contrast table of standard, determine and are detected column
The model of vehicle determines whether tested train belongs to detected type according to the model of the train；If the model of tested train
It is not belonging to be detected type, the camera system is to this train without detection；If the model of tested train belongs to detected
Type, i.e., tested train is locomotive, center of the wheel detector according to vehicle speed information and wheel detector away from every group of shooting point
Distance at the time of calculate locomotive bottom cab signal receiving coil and reach every group of shooting dot center of rectangle, while according to speed
The distributing position of information, wheelbase information and cab signal receiving coil determines that two adjacent cab signals of front and back receive line
Circle reaches time difference when every group of shooting point center, and by the time information and time difference information to shoot command signal
Form is sent to the camera in locomotive cab signal receiving coil shooting case, and locomotive cab signal receiving coil shoots the phase in case
Machine is determined at the time of starting shooting according to shooting command signal and shooting time is poor；According to the four of every group of shooting point locomotive machines
The image that camera in vehicle signal receiving coil shooting case is shot, which is grouped together, judges locomotive cab signal receiving coil table
Whether whether damaged and fixing bolt is lost or is loosened in face.
Cab signal receiving coil progress the beneficial effects of the invention are as follows the image by camera shooting to locomotive bottom
Detection, due to locomotive cab signal receiving coil shooting case be it is embedded, therefore, there is no need to operator and climb into locomotive bottom, it is logical
It crosses wheel detector and accurately obtains the exact time that cab signal receiving coil reaches matrix center, detection efficiency is high, detection
Accuracy is good, has a safety feature, and every group of shooting point obtains the overall picture of cab signal receiving coil, detection effect in combination
It is good, high reliablity；The image that locomotive cab signal receiving coil shoots the camera shooting in case can be color image, can also be with
For gray level image or high definition image, facilitates testing staff to check, also facilitate image automatic identification.
The present invention is suitable for shooting the appearance images of locomotive bottom cab signal receiving coil and cab signal receives line
The fixing bolt image of circle.
Detailed description of the invention
Fig. 1 shows for a kind of positional structure of cab signal receiving coil image capturing apparatus described in specific embodiment one
It is intended to.
Specific embodiment
Specific embodiment 1: embodiment is described with reference to Fig. 1, a kind of cab signal reception described in present embodiment
Coil image camera system includes wheel detector 3, cab signal receiving coil shooting case 4 and two groups of shooting points；
The vehicle speed information and wheelbase information that wheel detector 3 is arranged on the side wall of rail 2 to obtain locomotive, and guarantee
After locomotive preferentially passes through wheel detector 3, then pass through shooting point；
According to the vehicle model of the wheelbase acquisition of information locomotive and the specific location of cab signal receiving coil；
Every group of shooting point includes phase unit one and phase unit two, and the camera of the phase unit one and phase unit two is arranged at
The two sides of every rail, and the distance of phase unit one and phase unit two is not less than 0.3 meter；
The camera lens of the camera of every group of shooting point is arranged upward, when cab signal receiving coil is in phase unit one and camera
When between group two, each camera is shot；
Camera is located in cab signal receiving coil shooting case 4.
A kind of cab signal receiving coil image taking system described in present embodiment is set on the route of train storage
System, to be detected the fastness of its cab signal receiving coil automatically to locomotive, train wheel is rolled first on rail 2
When wheel detector 3, wheel detector 3 is a pair of sensors, and the vehicle speed information and axis of train are obtained according to this pair of sensors
It away from information, is compared according to the wheelbase information with the wheelbase information contrast table of standard, determines the model of detected train, it is described
Model includes lorry, car, locomotive, motor-car, and present embodiment only detects locomotive, determines tested column according to the model of the train
Whether vehicle belongs to detected type, and determines that the specific location of cab signal receiving coil (determines locomotive cab signal
Camera in receiving coil shooting case 4 needs the cab signal receiving coil shot to be located at tested engine detail location), nothing is discussed point by point
Vehicle belongs to any vehicle, and fixation position of the cab signal receiving coil all right above the rail of train bottom is believed when according to wheelbase
After breath obtains vehicle number, the specific location of the cab signal receiving coil of the vehicle just be located, such as in first axle and locomotive
Between head or between the last one axis and locomotive tail portion；If the model of tested train is not belonging to be detected type, wheel
Sensor 3 does not issue instruction；If the model of tested train belongs to detected type, i.e., tested train is locomotive, wheel-sensors
Device 3 calculates locomotive bottom cab signal away from the distance of every group of shooting dot center according to vehicle speed information and wheel detector 3 and connects
At the time of take-up circle reaches every group of shooting dot center, while according to vehicle speed information, wheelbase information and cab signal receiving coil
Distributing position determine time difference when the adjacent two cab signal receiving coils in front and back reach rectangular centre position, and will
The time information and time difference information are sent in locomotive cab signal receiving coil shooting case 4 in the form of shooting command signal
Camera, locomotive cab signal receiving coil shooting case 4 in camera according to shooting command signal determine start shooting at the time of
And shooting time is poor；It is shot according to the camera in the four of every group of shooting point locomotive cab signal receiving coil shooting casees 4
Image be grouped together judge locomotive cab signal receiving coil whether securely and fixing bolt whether loosen.
Specifically the distance at the center according to vehicle speed information and wheel detector 3 away from every group of shooting point calculates locomotive bottom
Portion's cab signal receiving coil reaches calculation formula at the time of every group of shooting dot center are as follows:
Wherein, T1At the time of rolling wheel detector 3 first for tested train first row wheel, T2To install tested train
At the time of bottom cab signal receiving coil reaches every group of shooting dot center, h1For wheel detector 3 and every group of shooting dot center
Distance, h2To be mounted on the cab signal receiving coil of the tested train bottom (h at a distance from first row axis wheel2Pass through axis
The cab signal obtained after being compared away from information and according to the wheelbase information with the wheelbase information contrast table of standard receives line
Enclose what specific location determined), v is the vehicle speed information that wheel detector 3 obtains train.
The time interval calculation formula that camera in specific locomotive cab signal receiving coil shooting case 4 is shot every time
Are as follows:
Wherein, t is the time interval that locomotive cab signal receiving coil shoots that the camera in case 4 is shot every time, h3It is preceding
Distance (the h of latter two adjacent locomotives signal receiving coil3By wheelbase information and according to the wheelbase of the wheelbase information and standard
What the distributing position for the cab signal receiving coil that information contrast table obtains after being compared determined).
In the present embodiment, in all directions, accurately cab signal can be captured by the combination shooting of camera to connect
The image of take-up circle, without shooting always.
Specific embodiment 2: present embodiment is to a kind of described in specific embodiment one one cab signal reception line
Circle image capturing apparatus further limits, and in the present embodiment, the camera is line-scan digital camera, 3D camera or area array cameras.
Specific embodiment 3: present embodiment is to a kind of cab signal receiving coil described in specific embodiment one
Image capturing apparatus further limits, and in the present embodiment, the camera is furnished with compensatory light and camera protective device.
Specific embodiment 4: present embodiment is to a kind of cab signal receiving coil described in specific embodiment one
Image capturing apparatus further limits, and in the present embodiment, the locomotive cab signal receiving coil shooting case 4 is equipped with translation
Door and translation controlling device for doors；
The translation controlling device for doors includes motor, motor mount, transmission mechanism and guide rail；
The open end at 4 top of locomotive cab signal receiving coil shooting case is arranged in guide rail；Translation door is slided along guide rail
To realize that unlatching and the closure of locomotive cab signal receiving coil shooting 4 open end of case are converted；
Motor is fixed on locomotive cab signal receiving coil by motor mount and shoots in case 4, and the rotation axis of motor is logical
It is mobile to cross transmission mechanism control translation door；
The rotating signal output end of the wheel detector 3 is connected with the rotating signal input terminal of motor.
In the present embodiment, translation door blocks the open top end in locomotive cab signal receiving coil shooting case 4, puts down
After sliding door control device is by receiving the rotating signal that wheel detector 3 is sent, translation door is opened, internal camera starts to take the photograph
Picture, translation door is returned to the open end state of starting blocked in locomotive cab signal receiving coil shooting case 4 after camera shooting,
Realize the protection to the camera inside locomotive cab signal receiving coil shooting case 4.
Claims (4)
1. a kind of cab signal receiving coil image capturing apparatus, which is characterized in that the camera system includes wheel detector
(3), cab signal receiving coil shooting case (4) and two groups of shooting points；
Wheel detector (3) is arranged on the side wall of rail (2) to obtain the vehicle speed information and wheelbase information of locomotive, and guarantees
After locomotive preferentially passes through wheel detector (3), then pass through shooting point；
According to the vehicle model of the wheelbase acquisition of information locomotive and the specific location of cab signal receiving coil；
Every group of shooting point includes phase unit one and phase unit two, and the camera of the phase unit one and phase unit two is arranged at every
The two sides of rail, and the distance of phase unit one and phase unit two is not less than 0.3 meter；
The camera lens of the camera of every group of shooting point is arranged upward, when cab signal receiving coil is in phase unit one and phase unit two
Between when, each camera is shot；
Camera is located in cab signal receiving coil shooting case (4).
2. a kind of cab signal receiving coil image capturing apparatus according to claim 1, which is characterized in that the camera
For line-scan digital camera, 3D camera or area array cameras.
3. a kind of cab signal receiving coil image capturing apparatus according to claim 1, which is characterized in that the camera
Equipped with compensatory light and camera protective device.
4. a kind of cab signal receiving coil image capturing apparatus according to claim 1, which is characterized in that the locomotive
Signal receiving coil shoots case (4) and is equipped with translation door and translation controlling device for doors；
The translation controlling device for doors includes motor, motor mount, transmission mechanism and guide rail；
Open end of the guide rail setting at the top of cab signal receiving coil shooting case (4)；Translation door is slided along guide rail to realize
Cab signal receiving coil shoots the unlatching of case (4) open end and closure is converted；
Motor is fixed in cab signal receiving coil shooting case (4) by motor mount, and the rotation axis of motor passes through transmission
Mechanism controls translation door is mobile；
The rotating signal output end of the wheel detector (3) is connected with the rotating signal input terminal of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735217.XA CN110341748B (en) | 2019-08-09 | 2019-08-09 | Image shooting system for locomotive signal receiving coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735217.XA CN110341748B (en) | 2019-08-09 | 2019-08-09 | Image shooting system for locomotive signal receiving coil |
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| Publication Number | Publication Date |
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| CN110341748A true CN110341748A (en) | 2019-10-18 |
| CN110341748B CN110341748B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910735217.XA Active CN110341748B (en) | 2019-08-09 | 2019-08-09 | Image shooting system for locomotive signal receiving coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202947884U (en) * | 2012-12-20 | 2013-05-22 | 北京康拓红外技术股份有限公司 | Motor train unit operation fault dynamic image detection system |
| CN204355079U (en) * | 2015-01-16 | 2015-05-27 | 郑州铁路装备制造有限公司 | A kind of locomotive on-line monitoring system based on image processing techniques |
| CN204674616U (en) * | 2014-12-18 | 2015-09-30 | 北京康拓红外技术股份有限公司 | A kind of dynamic detector for train wheel pair size |
| CN105374038A (en) * | 2015-11-11 | 2016-03-02 | 石家庄铁道大学 | Car-mounted double camera locomotive wheel track displacement image detection system and detection method |
| CN206446603U (en) * | 2017-02-17 | 2017-08-29 | 北京京天威科技发展有限公司 | A kind of locomotive running part detection means being imaged based on linear array scanning and 3D |
| US20180031366A1 (en) * | 2015-02-27 | 2018-02-01 | Mitsubishi Heavy Industries, Ltd. | Abrasion inspection apparatus, abrasion inspection method, and program |
| CN107687953A (en) * | 2017-09-12 | 2018-02-13 | 哈尔滨市科佳通用机电股份有限公司 | A kind of lorry failure automatic checkout equipment |
| CN208143365U (en) * | 2018-05-29 | 2018-11-23 | 哈尔滨市科佳通用机电股份有限公司 | The camera system of EEF bogie under a kind of vehicle-mounted vehicle of detection electricity business |
| CN210191489U (en) * | 2019-08-09 | 2020-03-27 | 哈尔滨市科佳通用机电股份有限公司 | Locomotive signal receiving coil image shooting system |
-
2019
- 2019-08-09 CN CN201910735217.XA patent/CN110341748B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202947884U (en) * | 2012-12-20 | 2013-05-22 | 北京康拓红外技术股份有限公司 | Motor train unit operation fault dynamic image detection system |
| CN204674616U (en) * | 2014-12-18 | 2015-09-30 | 北京康拓红外技术股份有限公司 | A kind of dynamic detector for train wheel pair size |
| CN204355079U (en) * | 2015-01-16 | 2015-05-27 | 郑州铁路装备制造有限公司 | A kind of locomotive on-line monitoring system based on image processing techniques |
| US20180031366A1 (en) * | 2015-02-27 | 2018-02-01 | Mitsubishi Heavy Industries, Ltd. | Abrasion inspection apparatus, abrasion inspection method, and program |
| CN105374038A (en) * | 2015-11-11 | 2016-03-02 | 石家庄铁道大学 | Car-mounted double camera locomotive wheel track displacement image detection system and detection method |
| CN206446603U (en) * | 2017-02-17 | 2017-08-29 | 北京京天威科技发展有限公司 | A kind of locomotive running part detection means being imaged based on linear array scanning and 3D |
| CN107687953A (en) * | 2017-09-12 | 2018-02-13 | 哈尔滨市科佳通用机电股份有限公司 | A kind of lorry failure automatic checkout equipment |
| CN208143365U (en) * | 2018-05-29 | 2018-11-23 | 哈尔滨市科佳通用机电股份有限公司 | The camera system of EEF bogie under a kind of vehicle-mounted vehicle of detection electricity business |
| CN210191489U (en) * | 2019-08-09 | 2020-03-27 | 哈尔滨市科佳通用机电股份有限公司 | Locomotive signal receiving coil image shooting system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111397516B (en) * | 2020-04-03 | 2020-12-01 | 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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| CN110341748B (en) | 2024-02-02 |
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