CN216351281U - Detection system for gap foreign matter between train and shield door - Google Patents

Abstract

The application provides a detecting system of gap foreign matter between train and shield door, including at least a set of detection device, detection device includes that the symmetry is installed at the inboard first linear invisible light source of two shield doors of predetermineeing the distance and second linear invisible light source, install in the first image collector directly over first linear invisible light source, and install in the second image collector directly under the second linear invisible light source, it is through installing two image collectors diagonal angle each other in a set of detection device to and install two linear invisible light source diagonal angles, can reach no dead angle and detect, strengthen the coverage that detects when having realized long distance accurate detection, can improve the accuracy that gap foreign matter detected between train and the shield door.

Description

Detection system for gap foreign matter between train and shield door

Technical Field

The application relates to the technical field of rail transit clearance detection, in particular to a detection system for gap foreign matters between a train and a shielding door.

Background

Along with the development of rail transit, trains such as high-speed railway, motor car, subway provide very big facility for people's trip, however, the train is when leaning on the station, especially has the train of shield door, has certain clearance between train and the shield door, and the clearance gets into foreign matter and people very easily, if do not discover the foreign matter and the people of surviving in time, after train door and shield door are closed, starts the train and forms the potential safety hazard very easily.

In order to solve the potential safety hazard, one of the prior art is to look over the foreign matter and the people who remain between train and the shield door through artifical protection, but at the in-process of implementing, whether the staff judges the shield door, platform clearance has the foreign matter through the artifical mode of looking out, its shortcoming is delay time easily, influence departure interval, in addition, people's visual distance is limited, the remote foreign matter of unable discernment, and the testing result receives driver mental state influence very easily, easy false retrieval and missed measure.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present application is to provide a system for detecting a gap foreign object between a train and a shield door, in which two image collectors in a set of detection devices are installed diagonally to each other, and two linear invisible light sources are installed diagonally to each other, so that dead-angle-free detection can be achieved, coverage of detection is enhanced while long-distance accurate detection is achieved, and accuracy of detecting a gap foreign object between a train and a shield door can be improved.

In a first aspect, an embodiment of the present application provides a system for detecting a gap foreign object between a train and a screen door, where the system includes at least one group of detection devices, and each detection device includes a first linear non-visible light source, a first image collector, a second linear non-visible light source, and a second image collector;

the first linear invisible light source and the second linear invisible light source are symmetrically arranged on the inner sides of two shielding doors at a preset distance; the first image collector is arranged right above the first linear non-visible light source; the second image collector is arranged right below the second linear invisible light source.

With reference to the first aspect, an embodiment of the present application provides a first possible implementation manner of the first aspect, where the detection device further includes a first connection shaft and a second connection shaft;

the first connecting shaft is arranged between the first linear non-visible light source and the first image collector; the second connecting shaft is arranged between the second linear invisible light source and the second image collector.

With reference to the first aspect, an embodiment of the present application provides a second possible implementation manner of the first aspect, where the first image collector and the second image collector are both cameras;

the camera comprises a camera body and a lens, wherein the lens is connected with the camera body.

With reference to the first aspect, an embodiment of the present application provides a third possible implementation manner of the first aspect, where the lens is a telephoto lens.

With reference to the first aspect, an embodiment of the present application provides a fourth possible implementation manner of the first aspect, and the video camera is an industrial camera.

In combination with the first aspect, an embodiment of the present application provides a fifth possible implementation manner of the first aspect, where the video camera further includes a filter, and the lens is connected to the camera body through the filter.

With reference to the first aspect, an embodiment of the present application provides a sixth possible implementation manner of the first aspect, where the video camera further includes a switching barrel, and the filter is connected to the camera body through the switching barrel.

In combination with the first aspect, the present application provides a seventh possible implementation manner of the first aspect, where each of the first linear non-visible light source and the second linear non-visible light source includes a bottom plate and a plurality of infrared LED lamps;

the plurality of infrared LED lamps are uniformly arranged on the bottom plate in a linear arrangement mode.

With reference to the first aspect, an embodiment of the present application provides an eighth possible implementation manner of the first aspect, where the system further includes a controller;

the controller is respectively in communication connection with the first linear invisible light source, the first image collector, the second linear invisible light source and the second image collector.

With reference to the first aspect, an embodiment of the present application provides a ninth possible implementation manner of the first aspect, where the controller is an embedded development board.

The system for detecting the gap foreign matter between the train and the shielding door comprises at least one group of detection devices, wherein each detection device comprises a first linear invisible light source, a first image collector, a second linear invisible light source and a second image collector; the first linear invisible light source and the second linear invisible light source are symmetrically arranged on the inner sides of two shielding doors at a preset distance; the first image collector is arranged right above the first linear non-visible light source; the second image collector is arranged under the second linear invisible light source, and two image collectors in a group of detection devices are arranged diagonally to each other and are arranged diagonally to each other, so that dead-angle-free detection can be achieved, long-distance accurate detection is realized, meanwhile, the detection coverage is enhanced, and the detection accuracy of gap foreign matters between a train and a shield door can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of an application scenario of a system for detecting a gap foreign object between a train and a screen door according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a system for detecting a gap foreign object between a train and a screen door according to an embodiment of the present invention;

fig. 3 is a second schematic structural diagram of a system for detecting a gap foreign object between a train and a screen door according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a foreign object detection imaging of a detection system for detecting a gap foreign object between a train and a screen door according to an embodiment of the present invention.

Icon: 110-a first linear non-visible light source, 120-a first image collector, 130-a second linear non-visible light source, 140-a second image collector, 150-a first connecting shaft, 160-a second connecting shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention conventionally put into use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the existing detection process of the gap foreign matter between the train and the shield door, detection is usually realized by adopting modes such as manual protection, laser correlation, infrared correlation, laser radar, video analysis and the like, and because the modes have the defects of affecting departure time, limiting detection distance, limiting detection range, having blind areas, being easily affected by external environment and generating false alarm and the like, the detection effect of the gap foreign matter between the train and the shield door is poor.

Therefore, the system for detecting the gap foreign matter between the train and the shield door comprises at least one group of detection devices, wherein each detection device comprises a first linear invisible light source, a first image collector, a second linear invisible light source and a second image collector; the first linear invisible light source and the second linear invisible light source are symmetrically arranged on the inner sides of two shielding doors at a preset distance; the first image collector is arranged right above the first linear non-visible light source; the second image collector is arranged under the second linear invisible light source, and two image collectors in a group of detection devices are arranged diagonally to each other and are arranged diagonally to each other, so that dead-angle-free detection can be achieved, long-distance accurate detection is realized, meanwhile, the detection coverage is enhanced, and the detection accuracy of gap foreign matters between a train and a shield door can be improved.

Referring to fig. 1, fig. 1 is a schematic view of an application scenario of a system for detecting a gap foreign object between a train and a screen door according to an embodiment of the present invention:

as shown in fig. 1, a train stops at a platform side, a group of detection devices including a first linear invisible light source 110, a first image collector 120, a second linear invisible light source 130 and a second image collector 140 are arranged on the platform at a train door side, and the detection system for the gap foreign matter between the train and the screen door provided by the utility model is applied to the detection of the foreign matter in the gap between the train and the screen door before the train leaves the station, and fig. 1 is only one of schematic diagrams of the detection system for the gap foreign matter between the train and the screen door, and is further explained by other schematic diagrams.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a system for detecting a gap foreign object between a train and a screen door according to the present invention:

as shown in fig. 2, the system for detecting a gap foreign object between a train and a screen door provided in this embodiment includes at least one set of detection devices, where the detection devices include a first linear non-visible light source 110, a first image collector 120, a second linear non-visible light source 130, and a second image collector 140; wherein, the first linear non-visible light source 110 and the second linear non-visible light source 130 are symmetrically installed at the inner sides of two shielding doors with a preset distance; the first image collector 120 is installed right above the first linear invisible light source 110; the second image collector 140 is installed right under the second linear invisible light source 130.

Here, the numerical range of the preset distance is generally 0 to 200m, that is, a set of detection devices is arranged in the range of 0 to 200m to meet the requirement of detection precision, if the distance to be detected is greater than 200m, one or more sets of detection devices need to be added according to the actual distance, and the specific number of the added detection devices is determined according to the specific numerical value greater than the preset distance.

The first linear invisible light source 110 and the second linear invisible light source 130 are both infrared LED light sources, and the infrared LED light sources can emit linear invisible infrared light, so that the influence on the sight of workers in the process of detecting a foreign object can be avoided compared with other visible light sources, and the influence on the detection result caused by the environment, such as train vibration, can be reduced compared with other invisible light sources, so as to provide a light source basis for detecting whether a foreign object exists according to subsequent infrared light imaging.

Further, the first linear non-visible light source 110 and the second linear non-visible light source 130 each include a base plate and a plurality of infrared LED lamps; the plurality of infrared LED lamps are uniformly arranged on the bottom plate in a linear arrangement mode.

The bottom plate can be set to be a straight plate or an arc plate according to different radians of the inner side of the installed shielding door, the infrared LED lamps can be LED lamps capable of continuously emitting invisible linear infrared light, the infrared LED lamps can be installed according to a linear arrangement mode when being uniformly installed on the bottom plate, the infrared LED lamps can also be set to be an s-type arrangement mode, a step-type arrangement mode and other arrangement modes according to different application environments, and the arrangement modes of the infrared LED lamps can also be set to be a linear single row, a linear multi-row, an s-single row, an s-multi-row, a step-type single row and a step-type multi-row according to requirements.

In addition, the first image collector 120 and the second image collector 140 are both industrial cameras to respectively obtain infrared light generated images emitted by the second linear non-visible light source 130 and the first linear non-visible light source 110, so as to achieve the effect of detecting the foreign object.

Wherein, the first image collector 120 is installed right above the first linear invisible light source 110; the second image collector 140 is installed under the second linear non-visible light source 130, that is, the first linear non-visible light source 110 and the second linear non-visible light source 130 are in a diagonal relationship in the same plane, and the first image collector 120 and the second image collector 140 are in a diagonal relationship in the same plane, so that the detection area of the first image collector 120 and the detection area of the second image collector 140 both tend to be a right triangle, and further the detection area of the first image collector 120 and the detection area of the second image collector 140 form a complete detection area, thereby increasing the detection range and ensuring the detection coverage.

Compared with the prior art, the problem that the detection range is limited and the detection blind area exists when the detection of the gap foreign matter between the train and the shielding door is carried out in the modes of manual protection, infrared correlation, laser radar and the like, the application improves the detection accuracy, increases the detection range, realizes the detection coverage and solves the problems that the detection range is limited and the blind area exists.

The system for detecting the gap foreign matter between the train and the shielded door comprises at least one group of detection devices, wherein each detection device comprises a first linear non-visible light source 110, a first image collector 120, a second linear non-visible light source 130 and a second image collector 140; wherein, the first linear non-visible light source 110 and the second linear non-visible light source 130 are symmetrically installed at the inner sides of two shielding doors with a preset distance; the first image collector 120 is installed right above the first linear invisible light source 110; the second image collector 140 is installed under the second linear invisible light source 130, and two image collectors in a group of detection devices are installed diagonally to each other and to the two linear invisible light sources, so that dead-angle-free detection can be achieved, long-distance accurate detection is realized, meanwhile, the detection coverage is enhanced, and the accuracy of detecting a gap foreign matter between a train and a shield door can be improved.

Referring to fig. 3, fig. 3 is a second schematic structural diagram of a system for detecting a gap foreign object between a train and a screen door according to an embodiment of the present invention:

as shown in fig. 3, the detection device in the detection system for detecting a gap foreign matter between a train and a screen door according to the embodiment of the present application further includes a first connection shaft 150 and a second connection shaft 160;

the first connecting shaft 150 is installed between the first linear invisible light source 110 and the first image collector 120; the second connecting shaft 160 is installed between the second linear invisible light source 130 and the second image collector 140.

The first connecting shaft 150 and the second connecting shaft 160 may be a rotating shaft or a telescopic shaft, so that the angles and heights between the first linear invisible light source 110 and the first image collector 120 and between the second linear invisible light source 130 and the second image collector 140 can be adjusted as required through the first connecting shaft 150 and the second connecting shaft 160, and the adaptability of the detection system for gap foreign matters between a train and a shield door is improved.

Further, the first image collector 120 and the second image collector 140 are both cameras; the camera comprises a camera body and a lens, wherein the lens is connected with the camera body.

Here, the lens is a telephoto lens, specifically an astronomical telescope, and because of its long focal length property, it provides support for the detection system of gap foreign matter between the train and the shield door to realize long-distance foreign matter detection.

The model of the camera body can be customized according to needs.

In addition, the camera is an industrial camera, and functions to generate an image based on the collected infrared light emitted from the first linear non-visible light source 110 or the second linear non-visible light source 130 in the detection device, so as to detect whether a foreign object exists in a gap between the train and the screen door.

In a specific implementation process, when receiving the infrared light emitted by the first linear non-visible light source 110 or the second linear non-visible light source 130, first, infrared light is collected through a lens with a long focal length, the collected infrared light is transmitted to the camera body, and the camera body generates a foreign object detection image according to the obtained infrared light.

Referring to fig. 4, fig. 4 is a schematic diagram of a foreign object detection imaging of the system for detecting a gap foreign object between a train and a screen door according to the embodiment of the present invention:

as shown in fig. 4, on the premise that the arrangement of the infrared LED lamps of the first linear invisible light source 110 and the second linear invisible light source 130 is a straight line, when there is no foreign matter in the gap between the train and the shield door, the image contour is a straight line, and when there is foreign matter in the gap between the train and the shield door, the image contour is cut into several parts, and the position of the foreign matter is a notch at the position corresponding to the image.

Further, the video camera further comprises a filter, and the lens is connected with the camera body through the filter.

Here, the filter is an infrared transmission filter.

In a specific implementation process, after the camera lens receives the infrared light emitted by the first linear invisible light source 110, the infrared penetrating filter is used for filtering, so that influence factors in the environment are filtered, later-stage imaging is clearer, and the accuracy of a detection system for gap foreign matters between a train and a shield door is improved.

Further, the video camera further comprises a switching barrel, and the filter is connected with the camera body through the switching barrel.

Here, the one end of switching bucket and the interface connection of filter, the other end and the interface connection of camera, through the better filter and the camera body of connecting of switching bucket ability, guaranteed the stability of device, wherein, the interface of camera is M42X0.75.

Further, the system further comprises a controller;

the controller is respectively connected to the first linear invisible light source 110, the first image collector 120, the second linear invisible light source 130, and the second image collector 140 in a communication manner.

The controller is an embedded development board, the controller is in communication connection with a train system of a train while being in communication connection with the first linear invisible light source 110, the first image collector 120, the second linear invisible light source 130 and the second image collector 140 respectively, when the train system of the train detects that the train enters the station, the train system sends a detection instruction to the controller, the controller receives the detection instruction of the train system, controls the linear invisible light source in the detection device to emit invisible light, receives an image generated by the image collector after receiving the invisible light emitted by the linear invisible light source, analyzes the image after receiving the image of the image collector, judges whether foreign matters exist between the linear invisible light source and the image collector, feeds back the detection result to the train system, and presents the detection result to a worker, and corresponding measures are taken according to the detection result, so that the driving safety is ensured.

Here, the model of the controller may be customized as needed.

Compared with the defects that the detection distance is limited, the detection range is limited, a blind area exists, the detection range is easily influenced by the external environment, the false alarm is generated and the like in the conventional manual protection, laser correlation, infrared correlation, laser radar, video analysis and other modes, the detection range is increased while the long-distance detection is ensured, and the detection accuracy is improved.

The detection device in the detection system for the gap foreign matter between the train and the shielding door provided by the embodiment of the application further comprises a first connecting shaft 150 and a second connecting shaft 160; the first connecting shaft 150 is installed between the first linear invisible light source 110 and the first image collector 120; the second connecting shaft 160 is installed between the second linear invisible light source 130 and the second image collector 140, so that the angles and heights between the first linear invisible light source 110 and the first image collector 120 and between the second linear invisible light source 130 and the second image collector 140 can be adjusted as required through the first connecting shaft 150 and the second connecting shaft 160, and the applicability of the device is improved while the system accurately detects foreign matters.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present application, and are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A detection system for gap foreign matters between a train and a shield door is characterized by comprising at least one group of detection devices, wherein each detection device comprises a first linear invisible light source, a first image collector, a second linear invisible light source and a second image collector;

the first linear invisible light source and the second linear invisible light source are symmetrically arranged on the inner sides of two shielding doors at a preset distance; the first image collector is arranged right above the first linear non-visible light source; the second image collector is arranged right below the second linear invisible light source.

2. The system for detecting the foreign object in the gap between the train and the screen door according to claim 1, wherein the detection device further comprises a first connection shaft and a second connection shaft;

the first connecting shaft is arranged between the first linear non-visible light source and the first image collector; the second connecting shaft is arranged between the second linear invisible light source and the second image collector.

3. The system for detecting the gap foreign matter between the train and the shielded door according to claim 1, wherein the first image collector and the second image collector are both cameras;

the camera comprises a camera body and a lens, wherein the lens is connected with the camera body.

4. The system of claim 3, wherein the lens is a telephoto lens.

5. The system of claim 3, wherein the camera is an industrial camera.

6. The system for detecting the foreign object in the gap between the train and the screen door according to claim 3, wherein the camera further comprises a filter, and the lens is connected with the camera body through the filter.

7. The system of claim 6, wherein the camera further comprises a transfer barrel, and the filter is connected to the camera body through the transfer barrel.

8. The system of claim 1, wherein the first and second linear non-visible light sources each comprise a base plate and a plurality of infrared LED lights;

the plurality of infrared LED lamps are uniformly arranged on the bottom plate in a linear arrangement mode.

9. The system of claim 1, further comprising a controller;

the controller is respectively in communication connection with the first linear invisible light source, the first image collector, the second linear invisible light source and the second image collector.

10. The system of claim 9, wherein the controller is an embedded development board.

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