KR20140031541A - Defect inspection system of overhead contact line - Google Patents

Abstract

The present invention relates to a tram line defect inspection system, and more particularly, it is possible to easily inspect the deformation and damage of the tram line facilities by vehicles or external factors by periodically photographing the ground and underground facilities of the tram line. It relates to a catenary defect inspection system. Such a tram line inspection system of the present invention is the left and right to take the image of the insulator, rigid steel wire, bolts and underground tank line facilities and the tram line, the concave line, the dropper image of the ground tram line facilities to transmit to the data collection and analysis device 230 in real time. Facility detection device 210: Front and rear facilities detection device 220 for taking an image of the movable bracket of the ground tram line facility and transmits it to the data collection and analysis device 230 in real time; And a front and rear image of a movable bracket which is a ground tram line facility detected by the post-war facility detection device 220 and a tram line, a concave wire, a dropper, a rigid steel wire, and bolts that are the ground tramway facilities detected by the left and right facility detection device 210. And a data collection and analysis device 230 for collecting the insulator and electric pole images, and analyzing the collected images with the normal images to detect defects.

Description

Defect Inspection System of Overhead Contact Line

The present invention relates to an image defect inspection system for a facility, and more particularly, to periodically inspect the ground and underground facilities of a tram line to easily inspect the deformation and damage of the tram line facility by a vehicle or an external factor. To a tram line defect inspection system.

In general, electric railway vehicles are used by many people because of their rapid, accurate and stable advantages over other means of transportation. Moreover, as high-speed railways are recently opened, they are getting more attention as public transportation.

The electric vehicle uses a pantograph, which is a current collecting system, and the electric vehicle can be stably operated at high speed only when the pantograph and the line of the electric vehicle are correctly contacted.

Here, the tramway facilities should be constructed so that the tram lines have a certain height and deviation according to the electric railway facility regulations, and maintain optimal conditions so as not to exceed the tramline construction limits by monitoring the deformation and damage of the components of the tramway facilities. There is a need.

In this way, since the tramline is in direct contact with the pantograph of the electric railway vehicle to supply power, the height and deformation of the tramline are accurately measured during the construction and maintenance work of the tramline so that it is positioned accurately without contacting the pantograph. It needs to be kept optimal.

However, in Korea, there is no method for automatically measuring the deformation of tramway facilities, so the workers are inspecting the tramway facilities visually, and facility inspections are being carried out according to the human eye as well as the risk of safety accidents in the high pressure environment. There was a problem that it was difficult to establish a scientific maintenance system for the tramway facilities.

So, in order to improve the inspection of the facilities by the naked eye, Korea Patent Application No. 2008-0086731 (name of the invention: the deformed video surveillance system of the tram line facility) was developed, but it is difficult to inspect the underground tram line facilities such as subways and tunnels. Or underground insulators, bolts, etc. inspection and maintenance was difficult accordingly.

Accordingly, the present invention is to solve the above-mentioned disadvantages and problems of the prior art, the present invention by periodically photographing the ground and underground facilities of the tram line by modifying the tram line facilities by vehicles or external factors and It is an object of the present invention to provide a catenary defect inspection system that can easily inspect the damage.

In order to achieve the above object, the present invention is a defect inspection system of the tram line, the basement of the tram line facilities insulators, rigid steel wire, bolts and ground tram line facilities such as tram lines, concave lines, droppers and the like to transmit to the data collection and analysis device in real time Right and left facilities detection device: the front and rear facilities detection device for taking an image of the movable bracket, such as the ground tram line facilities and transmits to the data collection and analysis device in real time; And before and after the image of the movable bracket which is the ground tram line facility detected by the post-war facility detecting device and the tram line, the jog wire, the dropper, the rigid steel wire, the bolts, the insulator, and the pole image which is the facility of the ground water tram line detected by the right and left facility detecting device. And collecting and analyzing a collected image and analyzing the collected image with a normal image to detect whether there is a defect.

The present invention has the following effects.

First, it is possible to grasp the deformation and damage of the tramway facilities by using the images of the tramway facilities.

Second, it is possible to grasp in detail the deformation and breakage of the tram line facilities by using images taken in front, rear, left and right directions of the tram line facilities.

Third, by managing the data according to the measurement of the deformation and breakage of the tram line facilities, it is possible to identify a specific location where the deformation and breakage occurs frequently.

Fourth, it is possible to integrate and standardize the detection system for tramway facilities.

Fifth, it is possible to establish a systematic and accurate maintenance system for tramway facilities.

Sixth, it is possible to detect underground tram line facilities.

Seventh, including a condenser lens for condensing a laser and a laser light source in the near infrared region, it is possible to obtain a clear tramway facility image even from 0 (stopped) to 350km / h high-speed vehicles, so it is easy to detect the tram line facilities It is possible.

1 is a view showing the ground tram line facilities in which the tram lines are installed;
2 is a block diagram for explaining a catenary system defect inspection system according to the present invention;
3 is a block diagram for explaining in detail the history management unit shown in FIG.
4 is a block diagram for explaining in detail the position information determination unit shown in FIG.
5 is a perspective view for explaining the ground section section detection in the present invention,
Figure 6 is a perspective view for explaining the detection of the underground section in the present invention,
7 is a view showing an image for explaining the rigid steel wire and insulator in the underground tram line facilities using the tram line defect inspection system according to the present invention,
8 is a view showing an image for explaining the bolts in the underground tram line facilities using the tram line defect inspection system according to the present invention,
9 is a view showing an image for explaining the bolt departure of the rigid steel wire of the underground tram line facilities using the tram line defect inspection system according to the present invention,
10 is a view showing an image for explaining the breakage of the underground tram line facilities using the tram line defect inspection system according to the present invention,
11 is a view showing an image for explaining a movable bracket, a tram line, a concave line and a dropper in the ground tram line facilities using the tram line defect inspection system according to the present invention;
12 is a view showing an image for explaining the position change and damage detection of the movable bracket brackets in the ground tram line facilities using the tram line defect inspection system according to the present invention,
13 is a view showing an image for explaining the bracket angle detection of the movable bracket in the ground tram line facilities using the tram line defect inspection system according to the present invention,
14 is a view showing an image for explaining the detection of the equalization line disconnection and the line break in the ground tram line facilities using the tram line defect inspection system according to the present invention,
FIG. 15 is a view for explaining a catenary system facility detection area using a catenary defect inspection system according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In addition, although the term used in the present invention is selected as a general term that is widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, since the meaning is described in detail in the description of the relevant invention, It is to be understood that the present invention should be grasped as a meaning of a term that is not a name of the present invention. Further, in describing the embodiments, descriptions of technical contents which are well known in the technical field to which the present invention belongs and which are not directly related to the present invention will be omitted. This is for the sake of clarity of the present invention without omitting the unnecessary explanation.

1 is a view showing a ground tramway facility in which the tramline is installed.

As shown in FIG. 1, the ground tramway facility 100 is largely composed of a tramline (Trolley Line) for contacting a current collector of an electric vehicle and facilities for supporting the tramline (moving brackets, barbed wires, droppers, etc.). .

The tramway line facility 100 has a feeder insulator 104 that is installed at a predetermined interval apart from the feeder wires that are horizontally installed at the top of the poles 101 and the feeder wire insulators 104 that are installed horizontally. Feeder 106 is hooked and installed together.

In addition, the upper pipe movable ring 107 is installed on the electric pole 101 so as to be spaced apart by a predetermined distance from the lower portion of the feeder wire perfection 102, and the upper pipe movable ring 107 is provided with the upper pipe insulator 108. 110 is connected.

In addition, the main pipe operating ring 111 is installed in the lower portion of the upper pipe operating ring 107 to be spaced apart by a predetermined interval, and the main pipe 114, together with the main pipe long insulator 112, Connected.

At this time, the jaw line hanging bracket 115 is installed at the end of the main pipe 114, and the jaw line hanging bracket 115 is installed so as to catch the barbed line 116.

Then, the horizontal pipe 117 is horizontally installed in the main pipe 114, and the horizontal support pipe 118 is installed between the main pipe 114 and the horizontal pipe 117 to support the horizontal pipe 117. , The curved pull support pipe 119 is installed vertically at the end of the horizontal pipe 117, one end of the curved pull tab 120 to the lower end of the curved pull support pipe 119 by the curved pull fixture 121 It is fixedly installed.

Here, the other end of the curved pull tab 120 is installed so that the tramline 123 is caught by the curved pull clamp 122. At this time, a dropper 124 is installed between the jaw line 116 and the tram line 123 by the jaw line clamp 125 and the chariot line clamp 126.

FIG. 2 is a block diagram illustrating a tram line defect inspection system according to the present invention, FIG. 3 is a block diagram illustrating the history management unit shown in FIG. 2 in detail, and FIG. 4 illustrates the location information determination unit shown in FIG. 2 in detail. Figure 5 is a block diagram for explaining, Figure 5 is a perspective view for explaining the ground section detection in the present invention, Figure 6 is a perspective view for explaining the underground section detection in the present invention.

The tramway defect inspection system according to the present invention includes a left and right facility detection device 210, a front and rear facility detection device 220, and a data collection and analysis device 230 as shown in Figs.

Here, the right and left facility detection device 210 is taken in the real-time tram line facilities, such as chariot line, concave line, dropper image and underground tram line facilities insulators, rigid steel wire, bolts and the like images are transmitted to the data collection and analysis device 230 in real time. do.

The left and right facility detection device 210 is composed of a filter 211, a high speed camera 212, a laser condensing light 213 and the left and right image processor 214.

In this case, the filter 210 blocks an external light source (for example, sunlight) for acquiring a facility image of uniform brightness.

The high speed camera 212 captures an image of the ground and underground tram lines.

The laser condensing light 213 collects a laser light source and uses it as a light source for photographing a tramway facility.

The left and right image processor 214 collects the images captured by the high speed camera and transmits them to the data collection and analysis device 230.

The front and rear facility detection device 220 photographs the moving bracket image of the ground tramway facility and transmits the image to the data collection and analysis device 230 in real time. The detailed configuration of the front and rear facility detection device 220 may be configured in the same manner as the left and right facility detection device 210.

In other words, the front and rear facility detection device 220 also includes a filter 221, a high speed camera 222, a laser condensing light 223, and a left and right image processor 224.

In this case, the filter 221 blocks an external light source (for example, sunlight) for acquiring a facility image of uniform brightness.

The high speed camera 222 photographs the ground and underground tramway facilities.

The laser condensing light 223 collects a laser light source and uses the light source for image capture of the tramway facility.

The before and after image processor 224 collects the images captured by the high-speed camera and transmits them to the data collection and analysis device 230.

On the other hand, the laser condensing light 213 is composed of a condensing lens 213a and a high power laser 213b.

Here, the laser condensed light 213 is a device for sharply photographing the tramway facility image with a camera in a vehicle traveling at a high speed from 0 (stopped state) to 350 km / h. Clear image acquisition can solve the difficult problem.

The condenser lens 213a condenses the high power laser and then evenly distributes the laser light source to the facility to be photographed by the camera.

The high power laser 213b is a near-infrared wavelength laser, which illuminates the tramway facilities with uniform brightness through the condenser lens 213a to capture a clear image from the camera.

These left and right facilities detection device 210 is installed on the left and right of the repair vehicle (V), respectively, to detect the ground tramway facilities (S12), such as tram lines, jogs, droppers, or underground tram line facilities such as rigid steel wire or bolts ( It consists of the left facility detection device C13 and the right facility detection device C14 which detect S13) or detect the underground tramway facilities S14, such as insulators and electric poles.

And the front and rear facility detection device 220 is installed on the left and right sides of the maintenance vehicle (V), respectively, consisting of a front facility detection device (C11) and a rear facility detection device (C12) for detecting the movable bracket of the ground tramway facility (S11). do.

Data collection and analysis device 230 (M in Fig. 5) is the ground portion detected by the front and rear facilities detection device 220 and the movable bracket before and after the image and the left and right facilities detection device 210 that is the ground tram line facilities (S11) detected. Image collection unit 231 which collects the tram line facility (S12), the tram line, the concave line, the dropper, and the underground tram line facility (S13) such as rigid steel wire or bolts, and the underground tram line facility (S14) such as insulator and Jeonju. And, the image analysis unit 232 for analyzing the collected image, and the normal image (sample image) to store the normal bracket (catch image, sample line), moving brackets, tram line, barbed wire, dropper, rigid steel wire, bolts, insulators, poles A storage unit 233, a defect detector 234 for detecting whether a current image analyzed by the image analyzer 232 and a normal image stored in the normal image storage unit 233 are defective, and a defect detected image I'm History control unit 235 for providing and managing the location information of the track facility 100, a location information determination unit 236 for determining the location information of the detected image, and a control unit for controlling the data collection and analysis device 230 ( 237). In this case, the defect detector 234 may compare the normal image with the current image and determine an abnormality such as an area, a circularity, a length, a number of points, a boundary line position, an edge, and the like, to detect a defect.

Here, the history management unit 235 is a counting unit 235a for counting the time from the time when the defect of the comparison image is determined by the defect detector 234, and a comparison time setting unit for setting a comparison time compared with the counted time ( 235b), a time judging unit 235c for comparing the counted time with the comparison time to determine whether the count time exceeds the comparison time, and a repair information input unit for inputting the repair contents so that the judgment of the time judging unit 235c is stopped. 235d and an alarm unit 235e for alerting in accordance with the judgment of the time determining unit 235c. Through the history management unit 235 is identified and managed whether the maintenance was made for the tramway facilities 100 determined to be abnormal. That is, counting from the time point determined to be abnormal to determine whether the repair was made within the set time, and if the repair is not made within the predetermined time, it can be alerted so that the repair can be made in a short time.

Therefore, the repair can be made as soon as possible according to the abnormal judgment of the important configuration of the tramway facility 100.

And, if the maintenance is not made within the set time, the warning is made through the alarm unit 235e to perform the maintenance.

In addition, the alarm unit 235e may be implemented as an alarm or a warning light. In this case, when the emergency is required due to the characteristic of the structure determined as above, the user may respond quickly by warning the contents of the warning differently. When the maintenance is performed at the set time, the alarm unit 235e does not alarm.

In addition, the location information determination unit 236 is a train line corresponding to a defect detected image stored in the history management unit 235 facility information, image recognition information and location information for the national railway operation section provided by the railroad pole information DB (236a). A location information mapping unit 236b for mapping with the location information of the furnace facility 100, a location information mapping unit 236b for mapping, and a measurement position correction unit 236c for analyzing and correcting a cumulative error of the location information. do.

On the other hand, the data collection and analysis device 230 may be provided inside the repair vehicle (V) as shown in FIG.

7 is a view showing an image for explaining the rigid steel wire and insulators of the underground tram line facilities using the tram line defect inspection system according to the present invention, Figure 8 is an underground tram line using the tram line defect inspection system according to the present invention 9 is a view showing an image for explaining the bolts of the facility, Figure 9 is a view showing an image for explaining the bolt departure of the rigid steel wire of the underground tram line facilities using the chariot line defect inspection system according to the present invention and FIG. It is a view showing the image for explaining the breakage of the underground tram line facilities using the tram line defect inspection system according to the invention.

As a result of detecting the underground tramway facilities in the tramway defect inspection system according to the present invention, as shown in FIGS. 7 to 8, the rigid steel wire, the insulator and the bolts can be detected, and as shown in FIG. 9. It is possible to detect the bolt deviation, and it can be seen that the insulator damage as shown in FIG. 10 can also be detected.

FIG. 11 is a view illustrating an image for explaining a movable bracket, a catenary line, a concave line, and a dropper in a ground tram line facility using the catenary line defect inspection system according to the present invention, and FIG. 12 is a catenary line defect inspection system according to the present invention. FIG. 13 is a view showing an image for explaining the change of position and damage detection of the movable bracket bracket in the ground tram line facility used. FIG. 13 is a bracket angle detection of the movable bracket in the ground tram line facility using the tram line defect inspection system according to the present invention. FIG. 14 is a view showing an image for explaining the detection of the equalization line disconnection and the jaw line disconnection of the ground tram line facilities using the tram line defect inspection system according to the present invention.

The result of detecting the underground tram line facilities in the tram line defect inspection system according to the present invention is the change of position of the movable bracket bracket through the image as shown in Fig. 12 for the movable bracket, the tram line, the concave line and the dropper as shown in Fig. 11. And damage detection, the angle of the bracket as shown in FIG. 13 is detected to detect normal angle application, and the equalizer line disconnection and the jaw line disconnection can be detected as shown in FIG.

FIG. 15 is a view for explaining a catenary system facility detection area using a catenary defect inspection system according to the present invention.

As shown in FIG. 15, the detection area of the tram line facility using the tram line defect inspection system according to the present invention has a large measurement area of the tram line facility (3000mm x 4000mm), and the existing LED light or line laser alone is used for high-speed driving. Although it was difficult to obtain a clear image, this disadvantage was made up by configuring a separate condenser lens and a high power laser in the near infrared region as in the present invention.

The present invention was performed by the "Development of Automated Diagnosis Technology for High-speed Railway Vehicle Inspection System" supported by the Ministry of Land, Transport and Maritime Affairs.

While the present invention has been described with reference to the exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the examples disclosed in the present invention are not intended to limit the scope of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

210: left and right facilities analysis device 211: filter
212: high speed camera 213: laser condensed light
213a: condenser lens 213b: high power laser
214: left and right image processor 220: before and after facility analysis device
221: line scan camera 222: line laser
223: before and after image processor 230: data collection and analysis device
231: image acquisition unit 232: image analysis unit
233: normal image storage unit 234: defect detection unit
235: history management unit 236: control unit

Claims (11)

Left and right facilities detection device 210 to take images of insulators, rigid steel wires, bolts and underground tram lines, tram lines, concave lines, dropper images and transmit them to the data collection and analysis device 230 in real time.
Front and rear facilities detection device 220 for photographing the movable bracket image of the ground tram line facility and transmits it to the data collection and analysis device 230 in real time; And
Before and after image of the movable bracket which is the ground tram line facility detected by the front and rear facility detection device 220 and the tram line, the concave line, the dropper, the rigid steel wire, the bolt, And a data collection analyzing apparatus (230) for detecting a defect by collecting insulator and electric pole images, and analyzing the collected image with a normal image.
The method of claim 1,
The right and left facility detection device 210,
A filter 210 for blocking external light sources for acquiring images of the ground and underground facilities of uniform brightness;
A high speed camera 212 for photographing the above ground and underground tramway facilities;
A laser condensing light 213 used to condense a laser light source and use it as a light source for photographing the above-ground and underground tram lines facilities; and
Catenary system defect inspection system comprising a left and right image processor (214) for collecting the image taken by the high-speed camera 212 to transmit to the data collection and analysis device (230).
The method of claim 1,
The front and rear facility detection device 220,
A filter 221 for blocking an external light source for obtaining the above-ground facility image of uniform brightness;
A high speed camera 222 for photographing the ground tramway facility;
A laser condensing light 223 used to condense a laser light source and use a light source for photographing the ground tramway facility image;
And a front and rear image processor (224) configured to collect the image photographed by the high speed camera (222) and transmit the data to the data collection and analysis apparatus (230).
The method according to claim 2 or 3,
The laser condensing light 213 is
A light condensing lens 213a for uniformly dispersing the laser light source in a facility to be photographed by the high speed cameras 212 and 222 after condensing the laser light source;
A high-power laser 213b, which is a near-infrared wavelength laser, used as the laser light source to shoot a sharp image by the high speed cameras 212 and 222 by illuminating the tramway facilities with uniform brightness through the condenser lens 213a. Catenary defect inspection system, characterized in that consisting of.
The method of claim 1,
The left and right facility detection device 210 is installed on the left and right sides of the repair vehicle (V), respectively, to detect the ground tramway facility (S12) such as a tramline, a conch, a dropper, or an underground tramway facility such as a rigid steel wire or bolts. A tram line defect inspection system comprising a left facility detecting device (C13) and a right facility detecting device (C14) for detecting (S13) or detecting underground tramway facilities (S14) such as insulators and electric poles.
The method of claim 1,
The front and rear facility detection device 220,
Tank line defect inspection system, characterized in that the front facility detection device (C11) and the rear facility detection device (C12) installed on the left and right sides of the repair vehicle (V), respectively, to detect the movable bracket of the ground tramway facility (S11). .
The method of claim 1,
The data collection analysis device 230,
Before and after images of the movable bracket which is the ground tram line facility detected by the post-war facility detection device 220 and the tram lines, the concave line, the dropper and the rigid steel wires or bolts that are the ground tram lines detected by the right and left facility detector 210. Image collection unit 231 for collecting the underground tramway facilities, such as the basement tramway facilities such as insulators, Jeonju,
An image analyzer 232 analyzing the collected image;
A normal image storage unit 233 for storing a normal image (sample image) of a movable bracket, a catenary wire, a concave wire, a dropper, a rigid steel wire, bolts, insulators, and a pole pre-installed at a corresponding position;
A defect detector 234 for detecting whether a current image analyzed by the image analyzer 232 and a normal image stored in the normal image storage unit 233 are defective;
A history management unit 235 for providing and managing location information of the tramway facility 100 corresponding to the defect detected image;
A location information determination unit 236 for determining location information of the detected image;
Tram line defect inspection system, characterized in that it comprises a control unit for controlling the data collection and analysis device (230).
8. The method of claim 7,
The defect detection unit 234,
And comparing the normal image with the current image to determine an abnormality such as an area, a circularity, a length, a number of points, a boundary line position, an edge, and the like, to detect a defect.
8. The method of claim 7,
The history management unit 235,
A counting unit 235a for counting a time from the time when the defect of the comparison image is judged by the defect detecting unit 234;
A comparison time setting unit 235b for setting a comparison time compared with the counted time;
A time determining unit 235c for comparing the counted time with the comparison time to determine whether the count time exceeds the comparison time;
A reward information input unit 235d for inputting reward details such that the determination of the time determining unit 235c is stopped;
And a warning unit (235e) configured to alert a repair to be performed if a repair is not made within a predetermined time according to the determination of the time determining unit (235c).
8. The method of claim 7,
The location information determination unit 236,
Railroad information DB (236a), which stores facility information, image recognition information, and location information on national railway service sections,
Location of the tramway facility 100 corresponding to the defect detected image stored in the history management unit 235 facility information, image recognition information and location information for the national railway operation section provided by the railroad information DB (236a) A location information mapping unit 236b for mapping information;
And a measurement position correction unit (236c) for analyzing and correcting a cumulative error of position information.
3. The method of claim 2,
The condensing light is a tram line defect inspection system, characterized in that for sharply photographing the tram line facility image with a camera in a vehicle running 200 to 450km / h.

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