KR100741483B1 - Tracking System for the Position of Arc Producing in Electric line of Electric Train - Google Patents

Abstract

The present invention includes a roof mounting portion including an arc detector for detecting an arc of an electric motor line and a camera unit including a camera, and a photoelectric conversion unit for inputting data measured in the arc detector and converting the data into an optical signal; A transmission unit positioned in the electric vehicle measuring room and receiving an optical signal from the photoelectric conversion unit and transmitting the optical signal to the electric vehicle measuring room; In the arc generating position tracking system of a typical electric train lane, which is located in the electric vehicle measuring room and includes an arc generating position display unit capable of confirming the arc generating state and the arc generating state on the image screen, the roof mounting part is made of insulator steel. The enclosure is supported by the pad and the frame support, the upper part of the enclosure is equipped with at least one light, a temperature / humidity sensor, a GPS antenna, the inside of the enclosure to shoot the arc image of the camera and arc Built-in arc detector for detecting the light, characterized in that for bonding the cooling fan unit to the lower part of the housing. The present invention can be utilized for precise repair of the tram line because it detects the dynamic correspondence between the electric vehicle and the current collector, and can analyze and analyze in real time the arc generation amount, arc duration, etc. generated in the tram line. In addition, there is an effect that can prevent the accident of the electric vehicle in advance.

Catenary, Roof mounted part, Arc detector, Photoelectric conversion part, Arc generating position display part

Description

Tracking system for the position of arc producing in electric line of electric train

1 is a conceptual diagram of the arc position tracking system of the foreline of the present invention.

Figure 2 is a perspective view of the roof mounting portion of the present invention.

Figure 3 is a roof mounted system configuration of the present invention.

4 is a configuration diagram of a measurement room system in an electric vehicle.

5 is a block diagram of the arc generation position display unit of the present invention.

Figure 6 is a graph of the arc measurement results for each running position.

7 is a graph of arc measurement results for each time unit.

8 is a configuration diagram of a main screen showing an arc measurement result.

9 is a configuration diagram of a detailed screen showing an arc measurement result.

10 is a screen configuration diagram showing the arc generation video search and playback.

     <Description of Signs for Major Configurations of Drawings>

1: electric car 2: tram line

3: current collector 5: roof mounting part

10: enclosure 16: lighting

18: GPS antenna 22: arc detector

30: photoelectric conversion unit 31: the main controller

34: main server 36: video encoder

40: microprocessor 42: signal processing circuit

50: transmission unit 60: arc generation position display unit

The present invention relates to an arc generation position tracking system of an electric vehicle catenary. More specifically, the present invention relates to a system for accurately finding an arc generating position occurring in an electric vehicle line of an electric vehicle and transmitting the arc generating position to an electric vehicle measuring room to track the occurrence of an arc.

The present invention installs an arc detector and a camera-mounted roof mounting unit in a train, subway, high-speed train, etc., and transmits the arc intensity and images generated from the electric vehicle line transmitting power to the electric vehicle to the electric vehicle measuring room to generate an arc. The present invention relates to a system for monitoring and tracking the arc generating position of a tramline of an electric vehicle, which can identify the position of the tramline and the arc generating state of the tramway.

Generally, tram lines in electric vehicles (or electric locomotives) such as subways, terrestrial railways, national railways, and high-speed railways are made of truss-type steel supports and cantilever or crossover cables (Oblique Encumbrance Catenary System) installed every 50m section. It is composed of a catenary cable which is fixed to the power supply and is supplied with electric power by contacting a pantograph of an electric vehicle.

However, such a catenary is caused by mechanical wear caused by friction between the current collectors of the electric vehicle or arcing (separation state), and electrical wear occurs due to the arc generated by the current collector.

Meanwhile, in the underground section, contaminants such as flakes, dust, concrete debris, condensation, water droplets, and other foreign matters accumulate on the tramline, causing scratches on the tramline when it comes into contact with the current collector of the train. Corrosion causes arcing problems. In addition, in the ground section of the subway, national railway section, and high-speed railway section, snow and rain. Fine contaminants are adsorbed due to the negative pressure generated from the rear side of the vehicle while the surface freezing, dust stone, soil powder, ear powder, and leaves, etc. are carried out, especially in tunnel entrances and exits, Extremely severe arcing occurs in urban underground railways.

Tank lines supported by suspension supports installed at certain distances (about 50m) may sag due to seasonal temperature changes, even if the tensile strength is constant at the time of initial installation. When contacted with, excessive friction occurred and an arc occurred at the same time, which caused the tank line to be broken and cut.

In this way, when the chariot is damaged or worn out, the chemical corrosion on the surface of the chariot is increased and the chariot strand damage caused by corrosion causes a reduction of the cross-section, or a fine collision with the current collector, and develops from a small arc to a large arc. Exceeding the above leads to cutting of the tramline and causes a safety accident.

The present invention has been made to solve the problems of the prior art, the object of the present invention is to generate an arc generated between the lanes of the tank and the current collector device (shoe) in the measurement section, the arc generated from the average arc from the arc and Provides a system that monitors arc generation at the required level of maintenance in real time, utilizes it for maintenance of the lane based on the generated arc information, and tracks the position of arc lane occurrence based on accurate arc occurrence position data in the lane. It's there.

Another object of the present invention is to detect the dynamic correspondence between the electric vehicle and the current collector to measure and analyze the arc generation amount and arc duration due to the two wires in real time to the electric vehicle tank line that can be utilized for precise repair of the tram line An arc generation position tracking system is provided.

The present invention for realizing the object of the present invention is to include an arc detector and a camera for detecting the arc of the electric motor line, and a built-in data in the enclosure and measured by the arc detector to convert into an optical signal A roof mounting part including a photoelectric conversion part; A transmission unit located in an electric vehicle measuring room and receiving an optical signal from the photoelectric conversion unit and transmitting the optical signal to the electric vehicle measuring room; In the arc generating position tracking system of a conventional electric vehicle lanes, which is located in the electric vehicle measuring room and includes an arc generation position display unit capable of confirming the position and arc generation state of an arc-generated electric vehicle line on a video screen,
The roof mounting part includes an enclosure in which the steel pad part is made of an insulator and is supported by a frame support, and at least one lighting lamp, a temperature / humidity sensor, and a GPS antenna are mounted on an upper portion of the enclosure. It has a camera for capturing arc images and an arc detector for detecting the light of the arc, characterized in that for attaching the cooling fan unit to the lower portion of the enclosure.

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The side of the enclosure is characterized in that the transparent window for confirming the internal operating state is installed in the panel, and the vibration absorbing device and the cooling fan unit is sequentially attached to the lower portion of the enclosure.

The transmission unit includes a main controller through which the data received from the roof mounting unit is transmitted through the photoelectric conversion unit, a main server for processing, storing and displaying the data received from the main controller through a mounting application, and image data entered through the photoelectric conversion unit. And a video filter for removing the noise and transmitting the video data to the video encoder, and a video encoder for compressing the received video data to MPEG-4 and transmitting the video data to the main server.
In addition, the speed pulse detector, which is related to the speed recorder for measuring the speed of the wheel, transmits, stores and displays the speed, etc., which has actually been driven by the power unit, and monitors the data received from the line voltage / current measuring instrument and the UPS. The control data is characterized in that the transmission to the main controller.

The arc generation position display section includes an arc detector for detecting arc generation, a signal processing circuit for signal processing the detection result, a microprocessor for arithmetic processing the result, and a display device for displaying the ultraviolet light quantity display section.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a perspective view showing a system for tracking the arc generation position of the electric vehicle tram line, Figure 2 is a perspective view of the roof mounted portion of the present invention, Figure 3 is a configuration diagram of the roof mounted portion system of the present invention, Figure 4 is a system of the measurement room in the train It is a block diagram. 5 is a block diagram of the arc generation position display unit of the present invention. 6 is an arc measurement result graph for each driving position, and FIG. 7 is an arc measurement result graph for each time unit. 8 is a configuration diagram of a main screen showing an arc measurement result, FIG. 9 is a configuration diagram of a detailed screen showing an arc measurement result, and FIG. 10 is a screen configuration diagram showing a video search and playback showing arc generation.

As shown in FIG. 1, the current collector 3 is installed on the electric vehicle 1, and the current collector 3 collects electricity from the electric vehicle line 2. Since the tram line 2 generates an arc greater than the allowable value due to mechanical friction or arc generation between the current collectors 3 of the electric vehicle, an arc detector and a roof mounted part 5 having a built-in camera to detect the arc are detected. It is installed on the roof of the electric vehicle (1). The roof mounting portion 5 is divided into an ascending roof mounting portion 6 and a descending roof mounting portion 7 and installed in pairs near the current collector 3 at regular intervals on the electric vehicle 1.

Roof mounting portion 5 of the present invention is applied to the electric vehicle (1) or the electric locomotive, and detects the dynamic correspondence between the electric vehicle and the current collector device in real time to detect the arc generation, duration, etc. generated in the catenary (2) It can be used for precise repair of tram lines because it can measure and analyze the location and phenomenon of arc generation through images.

2 is a perspective view of the roof mounted portion 5 of the present invention.

According to the present invention, an enclosure 10 including an arc detector 22 and a camera 21, and a photoelectric device which is input into the enclosure 10 and inputs data measured by the arc detector 22 to be converted into an optical signal Located in the roof mounting portion 5 composed of the conversion unit 30, the transmission unit 50 for receiving an optical signal from the photoelectric conversion unit 30 and transmitting the optical signal from the photoelectric conversion unit 30 and the electric vehicle measurement chamber, It is composed of an arc generation position display unit 60 that can check the position and the arc generation state of the vehicle line in which the arc is generated.

The housing portion 10 is supported by the steel pad portion 13 and the frame support 15 made of an insulator, at least one lamp 16 and the temperature / humidity at the top of the housing portion 10 A sensor 17 and a GPS antenna 18 are mounted, and the interior of the enclosure is characterized by a built-in camera 21 for capturing arc images and an arc detector 22 for sensing the light of the arc.

 The cooling fan unit 14 is attached to the lower portion of the housing portion 10, and the side of the housing 10 is characterized in that it further comprises a transparent window 20 to check the internal operating state. The output of the roof mounting portion 5 is the arc intensity and phenomenon is displayed on the video screen of the arc generation position display unit 60 installed in the measurement chamber.

Arc detector 22 used in the embodiment of the present invention uses a Firesoft model 2000EX-HS explosion-proof arc detector, the detection distance of the arc detector is 30M, the viewing angle is 90 degrees, the detection speed is within 0.2 seconds, two It is UV-IR high speed type for both UV / IR that can detect optical sensor.

The lamp 16 used in the embodiment of the present invention is preferably a metal halide lamp, and the camera 21 is preferably a CCTV camera or a digital camera capable of zoom in / zoom out. .

In addition, according to the radius of curvature for each part of the change surface of the upper portion of the electric vehicle 1, the roof mounting portion 5 is a box-type housing is coupled to the steel (SUS) pad portion 13 in a fixed manner. Each component and system in the roof mounted part 5 are configured in a 4U standard rack so as to be easily removed and mounted as modules.

In addition, it can be attached to the inside of the small panel that can check the operation state on the side of the enclosure so that the structure can grasp the operation state of each module without opening the enclosure and allows the operation state to be confirmed through the transparent window 20.

The roof mounted part 5 uses an insulating material that can simultaneously realize the vibration prevention and insulation effect so as to electrically insulate the housing 10 and the electric vehicle.

 In particular, the arc intensity and position of the arc arc detection device is composed of an arc detector 22 that can detect the arc, the camera 21 and the GPS antenna 18 to photograph the phenomenon, the electric vehicle (1) when driving outside In order to measure the temperature and humidity of the temperature / humidity sensor (17) is installed to monitor the real-time climatic conditions for the situation at the time of arc generation. The GPS antenna 18 is designed to provide driving information for tracking the arc generation position using the satellite navigation function and to compare and analyze the driving information detected through the tacho pulse detection unit of the wheel axle mounting unit. In order to prevent damage to the arc detector 22 while driving the electric vehicle, a transparent quartz or sapphire lens is attached to the front of the arc detector 22, and in the case of the camera 21, a tempered glass cover is installed to protect the front.

 3 is a configuration diagram of the roof mounting part 5 system of the present invention. The data detected by the arc detector 22 and the camera 21, the temperature / humidity sensor 17, and the GPS antenna 18 included in the roof mounted part 5 are input to the photoelectric conversion unit 30. In the arc detector 22, an optical signal is input. In addition to the known power supply device 24 and the temperature and humidity control device 25 is installed separately.

Each unit is housed in a modular form within a 19-inch rack. In particular, the data measured by the arc detector 22, the temperature and humidity sensor 17 is characterized in that it is input to the all-optical conversion device 30 in the form of data of RS-232 / 422/485 is converted into an optical signal. The data of the GPS antenna 18 is input to the photoelectric conversion unit 30 in the form of RS-232 and converted into an optical signal, and the image signal and the zoom / focus control signal of the digital camera 21 are transferred to the photoelectric conversion unit 30. It is input and converted into an optical signal. On / off control of the lamp 16 is input to the photoelectric conversion unit 30 through the relay 23 is converted into an optical signal.

4 is a configuration diagram of a measurement room system in an electric vehicle. The transmission part of the measurement chamber is equipped with the photoelectric conversion part 30 in the measurement room that receives data from the photoelectric conversion part 30 of the roof mounting part 5, the main controller 31, and the data received from the main controller 31. The main server 34 to process, store and display through the application, the image filter 35 to remove the noise of the image data entered through the photoelectric conversion unit 30, and transmits to the video encoder 36, The video encoder 36 compresses the video signal to MPEG-4 and transmits the video signal to the main server 34. The transmission system signal flow of an embodiment of the present invention will be described.

The data received from the roof mounting unit 10 is transmitted to the main controller 31 through the photoelectric conversion unit 30, and the data received from the line voltage / current measuring device 32 and the monitoring and control data of the UPS 33 are Is transmitted to the main controller 31. The image filter 35 removes noise of image data introduced through the photoelectric conversion unit 30 and transmits the noise to the video encoder 36.

The video encoder 36 compresses the received video signal to MPEG-4 and transmits it to the main server 34. The speed pulse detector 37 connected to the speed recorder installed in the wheel / axle mount unit transmits, stores, and displays the speed, etc., traveled by the actual power unit to the main server 34. The main server 34 processes, stores and displays the data received from the main controller 31 through the onboard application. The wheel / axle loading unit is composed of a tacho pulse detection unit to measure the speed and to determine the current position by the actual value on the rail driven by the actual power unit separately from the GPS (Satellite Navigation System).

The speed pulse detector 37 receives the information from the wheel information terminal, is electrically insulated from the wheel information terminal, and has a structure that is not affected by the abnormal operation of the detector.

5 is a block diagram of the arc generation position display unit of the present invention.

Arcs that occur in the front lines of electric cars are fine but occur throughout the entire road. In this case, even a fine arc must be detected by the arc sensor, and the strength is strong or weak depending on the state of the tramline, which is also related to the speed of the train. That is, the amount of arc can be increased according to the speed of contact and the degree of wear of the contact surface, the protrusion of the wire strands, and the degree of burnout. The arc detection device of the intensity and position of the arc is composed of an arc detector 22 that can detect the arc, a camera 21 for photographing the phenomenon, and a signal processing circuit 42 for processing the measured arc detection results; The result of the measurement by the microprocessor 40 for inputting and processing a signal and the display unit 46 for displaying the amount of ultraviolet light is output to RS-232C or other communication means. This output data is displayed on the display device 60 which displays an image screen by arc related ultraviolet light quantity data, ultraviolet light quantity waveform, constant level spark detection notification, etc. as a relative value of ultraviolet light quantity change.

In FIG. 5, the power supply of the power supply device 41 supplies power to the arc detector 22 through the high voltage DC converter 43, and also to the signal processing circuit 42. The ultraviolet light quantity display unit 46 is selectively provided as necessary.

6 and 7 are graphs showing arc measurement results.

All arc information is monitored on the video screen above the arc intensity reference value. At this time, the error value between the measured value by distance, ie the measured km and the published km (business km) is corrected, and the driving position of the vehicle is automatically calculated with the corrected operating km within the measured section analyzed by GPS. The optimal position (arc generating position) can be calculated. The arc is detected and recorded in accordance with the condition of the tram line even if the electric vehicle meets the arc monitoring standard (the Korean Railroad Corporation's selection standard) with the arc detector 22 from the starting point (measurement start point). In this case, FIG. 6 is displayed on the monitor screen according to the operation of the measurement program for each measurement item, such as the arc generation size for each running position, FIG. 7. At this time, the various measurement graphs are outputted as color prints with different colors, and if the arc size is larger than the allowable value, a certain level can be distinguished to determine the situation for each urgent state of maintenance (ABCD class).

8 is a configuration diagram of a main screen showing an arc measurement result.

The contents of the screen configuration of FIG. 8 will be described for each code. ① Video screen output: Display video received from video encoder / Max. 4 split, ② Data display: Output data received from each sensor and equipment as numerical value, ③ Display graph of each sensor and equipment data Display list: Data for each equipment Unit and menu display, ④ Threshold value and event occurrence setting and condition change tab for X, Y axis: Adjustment of setting value for time, distance and graph display, ⑤ Graph display: Display of set data value in graph, ⑥ Currently configured Set value information display ⑦ Sub menu connection tab: Configuration, video setting, PIP, GPS, output, and other additional function interlocking tab, ⑧ Detailed data analysis tab: Full and partial analysis module interlocking tab of current and recorded data, ⑨ Video Analysis and Recording Module Link Tab: Displays the analysis and search for recording and capture data. For reference, in the "2 data display" of FIG. 8, the rightmost "speed" is the traveling speed of the electric vehicle measured by the GPS antenna 18 and the leftmost "driving speed" is the electric vehicle traveling speed measured by the electric vehicle tachometer (speedometer). to be. "Cooling fan normal operation" is always displayed on the present screen to indicate the operating state of the cooling fan to cool the heat inside the unit. That is, when an arc exceeding the allowable value is generated in the arc detector, the information is transmitted to the GPS antenna, and a value obtained by correcting the driving distance measured by the GPS and the driving distance measured by the tachometer and the error is displayed on the image screen.

9 is a configuration diagram of a detailed screen showing an arc measurement result.

The contents of the screen configuration of FIG. 9 will be described for each code. ① Information on the current setting value, ② Detailed display of the graph according to the set requirements, ③ Numerical display on the received data (temperature, humidity, wire voltage, wire current, current position, traveling speed, ARC measurement value, current time, etc.) ), ④ Receive data type selection (temperature, humidity, wire voltage, wire current, current position, running speed, ARC measurement value, current time, etc.), ⑤ image data display, ⑥ graph storage and image data storage button, ⑦ sub Menu: Shows detailed sub menu link and main screen movement button.

10 is a screen configuration diagram illustrating a video search and playback showing arc generation. The contents of the screen configuration of FIG. 10 will be described for each code.

① Image data for displaying and analyzing the recorded arc during arc generation, ② Output and selection tab for each parameter measured during arc generation, ③ Search and playback speed control tab, ④ Display of zoom, focus and current image display value, ⑤ Image control (Zoom) , Focus, Full / Half screen) button / light control, ⑥ Upper menu and sub menu buttons, ⑦ Graph display and numerical data display interlocking buttons, ⑧8. In case of arc detection, it displays the surrounding environment data, ⑨ other information and parameter.

In the embodiment of the present invention, the band of ultraviolet rays reaches the normal ultraviolet band and the extreme ultraviolet band of 254 ± 25nm, in particular, there may be a lot of misinformation about fire source, high luminance flood, etc. of appearance (solar, hydrocarbon) series. Therefore, if you want to monitor only the minute sparks in the entire train zone, you can analyze the spark detection results of IR (Infrared band: 4.3um) simultaneously and output the arc intensity and duration by using the image information while outputting the arc intensity and duration by the light quantity meter. By confirming, only the event that exceeds the set value (Red status above the arc allowance) can be grouped to derive the detailed analysis report, and the arc occurrence position is tracked by this report.

       It is to be understood that the present invention is not limited to the above-described preferred embodiments but may be practiced in various ways without departing from the spirit of the present invention. If you grow up, you can easily understand. If the implementation by such improvement, change, replacement or addition falls within the scope of the appended claims below, the technical idea is also regarded as belonging to the present invention.

According to the present invention, by measuring the arc generated between the electric vehicle and the current collector, it is possible to accurately track the arc generation position by real-time monitoring the arc generation (arc allowance outlier) of the arc and maintenance requirements level on the average running from the microarc have.

In addition, the present invention by measuring and analyzing the arc generation amount, duration, etc. generated in the front line in real time, in addition to the arc generated by comparing the running speed, temperature, humidity, speed measurement, wire voltage, current value measured by GPS As it can be used for precise repair of tram lines according to the information strength, it is possible to prevent safety accidents of electric cars in advance.

Claims (8)

delete delete A roof-mounting unit including an arc detector and a camera unit including an arc detector for detecting an arc of the electric motor line, and a photoelectric conversion unit embedded in the enclosure and inputting data measured by the arc detector to an optical signal; A transmission unit located in an electric vehicle measuring room and receiving an optical signal from the photoelectric conversion unit and transmitting the optical signal to the electric vehicle measuring room; In the arc generation position tracking system of the electric vehicle tram line, which is located in the electric vehicle measuring room and includes an arc generation position display unit for checking the position and arc generation state of the arc generation in the image screen, The roof mounting part includes a housing part 10 supported by the steel pad part 13 and the frame support 15 made of an insulator, at least one lamp 16 on the upper part of the housing part 10, A temperature / humidity sensor 17 and a GPS antenna 18 are mounted, and the interior of the enclosure includes a camera 21 for capturing arc images and an arc detector 22 for detecting light from the arc. Arc generation position tracking system of the electric vehicle tank line, characterized in that for attaching the cooling fan unit (14) to the lower part of the body portion (10). 4. The arc generating position tracking system according to claim 3, further comprising a transparent window (20) on the side of the housing (10) for checking an internal operating state. 4. The arc generating position tracking system according to claim 3, wherein a vibration absorbing device (19) is attached between the housing (10) and the frame support (15). The system of claim 3, wherein the lamp (16) is a metal halide lamp or the like. The method of claim 3, wherein the transmission unit is processed by the main controller 31, the data received from the roof mounting unit through the photoelectric conversion unit 30 and the data received from the main controller 31 through a mounting application, A main filter 34 for storing and displaying images, an image filter 35 for removing noise of image data input through the photoelectric conversion unit 30, and transmitting the image data to the video encoder 36, and a received image Arc generating position tracking system of the electric vehicle tram line, characterized in that it consists of a video encoder (36) for compressing data to MPEG-4 to transmit to the main server (34). delete

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