CN201764947U - Running condition detection device for train pantograph - Google Patents

Running condition detection device for train pantograph Download PDF

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Publication number
CN201764947U
CN201764947U CN2010201728460U CN201020172846U CN201764947U CN 201764947 U CN201764947 U CN 201764947U CN 2010201728460 U CN2010201728460 U CN 2010201728460U CN 201020172846 U CN201020172846 U CN 201020172846U CN 201764947 U CN201764947 U CN 201764947U
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pantograph
imageing sensor
running state
state detecting
plc
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CN2010201728460U
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Chinese (zh)
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朱茂芝
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Individual
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Abstract

The utility model discloses a running condition detection device for a train pantograph. The running condition detection device comprises a group of at least four laser devices, an image sensor, a mounting bracket and a site IPC (industrial personal computer); the mounting bracket comprises a mounting upright column vertically fixed on the ground and a mounting cross rod perpendicular to the mounting upright column; the laser devices are mounted on the cross rod of the mounting bracket corresponding to four measuring points on the pantograph in an isometric manner; the image sensor is arranged on the cross rod; and the output of the image sensor is connected with the site IPC. The running condition detection device is suitable for mounting with various site conditions, has wide speed application range, not only can be mounted in inbound and outbound routes to detect the condition of the pantograph of inbound and outbound trains, but also can be mounted in normal running routes to detect the condition of the pantograph of a train in high speed running state.

Description

Train pantograph running state detecting device
Technical field
The utility model relates to a kind of pantograph running state detecting device that reflects train pantograph running status.
Background technology
Pantograph is the important core parts of electric motor coach, is directly connected to the safe, steady of vehicle operating, widely applies in EMU, railcar.Be subjected to the influence of material, pantograph structure, train speed, air resistance and outside running environment to be easy to generate the abnormal running state, the operation of harm vehicle safety.Be the high request of reply train operation efficient and running quality, need to improve pantograph operation detection level, guarantee in time to safeguard, prevent the continuity and the development of malfunction.
Pantograph detects and mainly contains mobile unit detection, warehouse-in manual detection, three kinds of modes of the online detection in ground at present, but all exists certain limitation, and the mobile unit detection mode exists problems such as installation, scale of investment and data transmission in practice; And warehouse-in manual detection mode is relatively backward, and efficient is low; The existing online detection in ground can only detect the thickness of pantograph carbon slide, and measuring ability is single, can not reflect the running status of pantograph comprehensively.
The utility model content
The purpose of this utility model provides a kind of device that is used to detect the train pantograph running status under the running status.
The purpose of this utility model is achieved through the following technical solutions: a kind of train pantograph running state detecting device, comprise one group of at least four laser instrument, the imageing sensor that is used for imaging measurement point, mounting bracket and on-the-spot industrial computer, measurement point on the corresponding pantograph of laser instrument is installed on to be installed on the cross bar, imageing sensor places on the cross bar, and the output of imageing sensor inserts on-the-spot industrial computer.
The utility model also comprises at least four laser instruments of another group and another imageing sensor, two groups of laser instruments and two imageing sensor symmetries are installed on the both sides of described installation cross bar, realize comprising the detection that the good working condition of the pantograph of former and later two carbon slide plates detects and tilts forward and back.
Described measurement point is respectively: the zone, 1/4 position and the zone, 3/4 position of the central region of the left and right goat's horn of pantograph and pantograph carbon slide total length.
Described laser instrument is visible red or infrared semiconductor laser.
The field of view angle of described imageing sensor covers described four measuring point at least, can adopt high-speed camera.
The cross bar of described mounting bracket is a 0.5-1.5 rice apart from the vertical height of contact net.
The optical filter consistent with laser instrument optical maser wavelength is set before the described imageing sensor, prevents the influence of natural light measuring.
Principle of work of the present utility model is: the carbon slide plate of train pantograph and the end face of goat's horn structure can be reduced to trapezium structure, the carbon slide plate is last base, two goat's horns are hypotenuse, if a plurality of laser instruments (being generally 4 ~ 6) launch simultaneously multiple laser respectively with the carbon slide plate of pantograph end face, goat's horn intersects, imageing sensor is by high-speed image sampling and technique of image edge detection, four the intersecting area lower limb height (Yi) that can obtain respectively selecting and the coordinate figure (Xi) of regional center, by to four groups of (Xi, Yi) analysis-by-synthesis of selection area coordinate figure, just can obtain the pantograph lateral excursion, on have a down dip, the goat's horn distortion, the important 3D shapes of pantograph such as goat's horn disappearance, the parameter of position, data volume and data variation quantitative analysis by these parameters can directly reflect pantograph running status and state variation.
As to further improvement of the utility model:
The utility model also comprises the ground detection flip flop equipment, the ground detection flip flop equipment comprises several wheel detectors and programmable logic controller (PLC) PLC, the output terminal of wheel detector inserts programmable logic controller (PLC) PLC, the output port of programmable logic controller (PLC) PLC connects the control input end of described imageing sensor, guaranteeing image acquisition constantly, pantograph and imageing sensor apart from strict conformance.
Wheel detector produces a pulse signal at train wheel by time above the sensor, programmable logic controller (PLC) PLC can count and velocity survey according to the consecutive pulses signal, calculate the moment of pantograph arrival measurement point, send trigger pulse to high speed imaging sensor, imageing sensor is started working.
The utility model can adapt to the installation of multiple field condition, the velocity adaptive scope is also very wide, both can be installed in out the warehouse-in circuit, realizes out the state-detection of warehouse-in train pantograph, also the main track working line can be installed, under the high-speed cruising state, realize the pantograph status detection.
Description of drawings
Fig. 1 is carbon skateboard and measuring point distribution schematic diagram;
Fig. 2 is the single carbon slide plate pantograph condition checkout gear of a utility model embodiment structural representation;
Fig. 3 is the complete pantograph pick-up unit of a utility model embodiment structural representation;
Fig. 4 is that the utility model embodiment pantograph pick-up unit detects theory diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model and principle of work thereof are described in further detail.
Be illustrated in figure 1 as carbon skateboard and measuring point distribution schematic diagram, 11 is contact line conducting wire, and 12 is the carbon slide block, and 13 is the pantograph goat's horn.The coordinate system that X-Y plane presentation video sensor pixel constitutes, (X1, Y1), (X2, Y2), (X3, Y3), (X4 Y4) represents the coordinate of laser and pantograph carbon slide intersecting area rim detection respectively, just can analyze the spatial attitude of pantograph by detecting these coordinate figures.
Be the stability of detection system, in the present embodiment, X1 is designed to the middle part of left side goat's horn, and X2 is designed to 1/4 position of carbon slide plate total length, and X3 is designed to 3/4 position of carbon slide plate total length, and X4 is designed to the middle part of the right goat's horn.
The experience that pantograph is used, safeguarded is verified: because pantograph adopts framed structure and resiliency supported, the variation of pantograph running status at first shows as the variation of pantograph space morpheme relation, lateral excursion by detecting pantograph, on have a down dip, tilt forward and back, the important 3D shape of pantograph, location parameters such as goat's horn distortion, goat's horn disappearance, based on the data volume and the data variation quantitative analysis of these parameters, detect pantograph running status, state variation amount and variation tendency.
Fig. 2 is the single carbon slide plate pantograph condition checkout gear of a utility model structural representation, and 2 is laser instrument, and 3 is high speed imaging sensor, and 4 is optical filter, and A is the image sensor field of view angle, and mounting bracket comprises to be installed column 1 and cross bar 5 is installed.Column 1 is installed is vertically stood on ground, cross bar 5 vertical fixing are installed in column 1 is installed, four measuring point on the corresponding pantograph of 4 laser instruments is equally spaced in installing on the cross bar 5, high speed imaging sensor 3 is arranged at 4 laser instrument centers, it is consistent that optical filter 4 and laser instrument send Wavelength of Laser, is installed in before the high speed imaging sensor 3.
For guaranteeing traffic safety, measure cross bar and must exceed contact net certain altitude (contact net safety clearance), so laser instrument and high speed imaging sensor must detect with certain downward angle, simultaneously, the field of view angle of imageing sensor should cover whole four measuring points at least, the actual installation angle will be installed true altitude according to the scene and be calculated and to get, and it is 0.5-1.5 rice apart from the vertical height of contact net that cross bar is installed generally speaking.
Four laser instruments launch simultaneously four bundle laser respectively with the carbon slide plate of pantograph end face, goat's horn intersects, imageing sensor is by high-speed image sampling and technique of image edge detection, obtain the coordinate figure of four selected among Fig. 1 intersecting areas in the coordinate system that image sensor pixel constitutes respectively, by analysis-by-synthesis to four groups of selection area coordinate figures, just can obtain the pantograph lateral excursion, on have a down dip, the goat's horn distortion, the important 3D shapes of pantograph such as goat's horn disappearance, the parameter of position, data volume and data variation quantitative analysis by these parameters can directly reflect pantograph running status and state variation.
For further improving the accuracy of measurement data, can adopt laser to carry out duplicate measurements more than 4 bundles, generally can adopt the 4-6 bundle, measuring principle is the same.
Fig. 3 is complete pantograph pick-up unit structural representation, and in the practical application, pantograph is made of former and later two carbon slide plates at least, and for finishing the state-detection of complete pantograph, device has designed two cover independent detection mechanisms, is that the center symmetry is installed so that cross bar to be installed.Record the space three-dimensional attitude of front and back carbon slide plate respectively by twice measurement.
Fig. 4 detects theory diagram for the pantograph pick-up unit, comprise several wheel detectors, programmable logic controller (PLC) PLC, imageing sensor F, H and on-the-spot industrial computer, the output of wheel detector inserts programmable logic controller (PLC) PLC, the output port incoming image sensor of programmable logic controller (PLC) PLC, the output terminal of imageing sensor inserts on-the-spot industrial computer.
Wheel detector and programmable logic controller (PLC) PLC form ground detection, wheel detector produces a pulse signal at train wheel by time above the sensor, programmable logic controller (PLC) PLC can count and velocity survey according to the consecutive pulses signal, calculate the moment of pantograph arrival measurement point, send trigger pip to high speed imaging sensor, guarantee pantograph and imageing sensor apart from strict conformance.High speed imaging sensor collection site image transfers to on-the-spot industrial computer, and on-the-spot industrial computer is finished graphical analysis, data computation.The measuring equipment of carbon slide plate before and after imageing sensor F, imageing sensor H are respectively and are used to measure.
The utility model includes but not limited to above listed embodiment; also can adopt the device of other identical function principles as ingredients such as laser type, imageing sensors, any with the utility model be with reference to all belong to protection domain of the present utility model with reference to the equivalent embodiment that is out of shape or extends.

Claims (9)

1. train pantograph running state detecting device, it is characterized in that: comprise one group of at least four laser instrument, the imageing sensor that is used for imaging measurement point, mounting bracket and on-the-spot industrial computer, measurement point on the corresponding pantograph of laser instrument is installed on the cross bar of mounting bracket, imageing sensor places on the cross bar, and the output of imageing sensor inserts on-the-spot industrial computer.
2. train pantograph running state detecting device according to claim 1, it is characterized in that: also comprise another at least four laser instruments of group and another imageing sensor, two groups of laser instruments and two imageing sensor symmetries are installed on the both sides of described installation cross bar.
3. train pantograph running state detecting device according to claim 1, it is characterized in that: described measurement point is respectively: the zone, 1/4 position and the zone, 3/4 position of the central region of the left and right goat's horn of pantograph and pantograph carbon slide total length.
4. train pantograph running state detecting device according to claim 3 is characterized in that: the field of view angle of described imageing sensor covers described four measuring point at least.
5. according to claim 1 or 4 described train pantograph running state detecting devices, it is characterized in that: described laser instrument is visible red or infrared semiconductor laser.
6. train pantograph running state detecting device according to claim 5 is characterized in that: described imageing sensor adopts high-speed camera.
7. train pantograph running state detecting device according to claim 6 is characterized in that: the cross bar of described mounting bracket is a 0.5-1.5 rice apart from the vertical height of contact net.
8. train pantograph running state detecting device according to claim 7 is characterized in that: the optical filter consistent with laser instrument optical maser wavelength is set before the described imageing sensor.
9. train pantograph running state detecting device according to claim 8, it is characterized in that: also comprise the ground detection flip flop equipment, the ground detection flip flop equipment comprises several wheel detectors and programmable logic controller (PLC) PLC, the output terminal of wheel detector inserts programmable logic controller (PLC) PLC, and the output port of programmable logic controller (PLC) PLC connects the control input end of described imageing sensor.
CN2010201728460U 2010-04-21 2010-04-21 Running condition detection device for train pantograph Expired - Fee Related CN201764947U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104808066A (en) * 2014-01-24 2015-07-29 苏州东南电碳科技有限公司 Detection apparatus and detection method of resistance of pantograph slide plate
CN105158257A (en) * 2015-05-21 2015-12-16 苏州华兴致远电子科技有限公司 Sliding plate measurement method and device
CN105627931A (en) * 2015-12-31 2016-06-01 成都铁安科技有限责任公司 Pantograph offset detection method and system
CN106052615A (en) * 2016-05-11 2016-10-26 中铁电气化局集团有限公司 Non-contact measurement method of railway catenary parameters and device
CN106198559A (en) * 2016-08-31 2016-12-07 成都铁安科技有限责任公司 A kind of dynamic detection system of roof of train image
CN107014296A (en) * 2017-03-30 2017-08-04 中国铁道科学研究院 Comprehensive inspection car OCS inspecting system high speed orientation triggering method and device
CN112729126A (en) * 2020-12-30 2021-04-30 重庆瑞莱尔博自动化设备有限公司 Contact line abrasion wireless measuring instrument and method based on laser vision
CN112762827A (en) * 2020-12-25 2021-05-07 江苏集萃智能光电***研究所有限公司 Pantograph comprehensive geometric parameter online detection device and method based on laser projection

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104808066A (en) * 2014-01-24 2015-07-29 苏州东南电碳科技有限公司 Detection apparatus and detection method of resistance of pantograph slide plate
CN105158257A (en) * 2015-05-21 2015-12-16 苏州华兴致远电子科技有限公司 Sliding plate measurement method and device
CN105158257B (en) * 2015-05-21 2018-07-20 苏州华兴致远电子科技有限公司 Slide plate measurement method and device
CN105627931A (en) * 2015-12-31 2016-06-01 成都铁安科技有限责任公司 Pantograph offset detection method and system
CN106052615A (en) * 2016-05-11 2016-10-26 中铁电气化局集团有限公司 Non-contact measurement method of railway catenary parameters and device
CN106052615B (en) * 2016-05-11 2018-09-11 中铁电气化局集团有限公司 The contactless measurement and equipment of railway contact line parameter
CN106198559A (en) * 2016-08-31 2016-12-07 成都铁安科技有限责任公司 A kind of dynamic detection system of roof of train image
CN107014296A (en) * 2017-03-30 2017-08-04 中国铁道科学研究院 Comprehensive inspection car OCS inspecting system high speed orientation triggering method and device
CN107014296B (en) * 2017-03-30 2019-03-12 中国铁道科学研究院集团有限公司 Comprehensive inspection car OCS inspecting system high speed orientation triggering method and device
CN112762827A (en) * 2020-12-25 2021-05-07 江苏集萃智能光电***研究所有限公司 Pantograph comprehensive geometric parameter online detection device and method based on laser projection
CN112729126A (en) * 2020-12-30 2021-04-30 重庆瑞莱尔博自动化设备有限公司 Contact line abrasion wireless measuring instrument and method based on laser vision

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20110316

Termination date: 20180421