KR20060111955A - Contact wire measurement system in electric railway - Google Patents

Abstract

A contact wire measurement system in an electric train-line is provided to move easily in a railway since a volume and a weight thereof is low. In a contact wire measurement system in an electric train-line, an electric train-line measuring device(100) installed at any place of a railway measures a position of the electric train-line wired in a railway as moving between both rails left and right. And, a data collection device(200) controls a measuring operation of the electric train-line measuring device(100) and collects each measured data.

Description

Contact wire measurement system in electric railway

1 is a system block diagram of a catenary measuring system according to the present invention.

FIG. 2 is an electrical block diagram of the catenary measuring apparatus of FIG. 1. FIG.

3 is a cross-sectional view of the catenary measuring apparatus in FIG.

FIG. 4 is a view illustrating a process in which the catenary measuring apparatus of FIG. 1 searches for a catenary.

5 is an electrical block diagram of the data collection device of FIG.

6 is an electrical block diagram of the history management device of FIG.

* Explanation of symbols for the main parts of the drawings

100: tram line measuring device 101: main controller

102: power supply unit 103: data conversion unit

104: pole distance sensor 105: rail height difference sensor

106: tram line position sensor 107: display unit

108: origin sensor 109: position limit sensor

150: main body 151: control box

152: screw 153: tram line position sensor

154, 155: support portion 157: rail

158: power supply unit 159: right limit sensor

160: left limit sensor 161: guide groove

162: pole distance sensor 163: rail height difference sensor

200: data acquisition device 201: main controller

202: power supply unit 203: data input unit

204: display unit 205: memory

206: data conversion unit 300: history management device

301: main controller 302: memory

303: data conversion unit 304: display unit

305: key operation unit 310: reference data DB

320: management interval data DB 330: measurement data DB

The present invention relates to a catenary measuring system, and more particularly, to a catenary measuring system for measuring the height and deviation of the catenary for supplying electric power to the electric railway vehicle, the distance between the pole and the rail, the height difference between the two rails.

Electric railway vehicles do not generate pollution because they use electricity as an energy source, and thus are widely used as environmentally friendly means of transportation, and these electric railway vehicles are supplied with electric power from tram lines installed on tracks.

The tramline is installed to have a certain height and deviation according to the regulations of the electric railway facility, and is usually zigzag-lined so that the upper surface of the fantagraph of the electric railway vehicle in direct contact with the tramline can be worn uniformly.

Since the tramline is in direct contact with the fantagraph of the electric railway vehicle to supply power, it is very important to adjust the trajectory line so that it is in the correct position so that there is no contact with the fantagraph.

However, the conventional vehicle measurement apparatus is installed on the track where the electric pole is standing, and then the horizontal and vertical rulers installed in the main body are used to measure the deviation and height of the vehicle lines, so that accurate measurements cannot be made. there is a problem.

In addition, because of its bulky and heavy weight, it must be carried by vehicles, it is very difficult to install on track, and it is inconvenient to measure the height and deviation of the tramline at one point and move to another point. have.

In addition, if a train passes while it is in operation, there is a problem that a number of workers must always wait to move the catenary measuring device out of orbit while the train is passing. Moreover, it is very dangerous for bridges and tunnels without evacuation sites. have.

The present invention was created in view of the above-described problems, and is easy to move due to its low volume and low weight, and precisely measures the height or deviation of the tramline, the distance between the pole and the rail, the height difference between the two rails, etc. using a laser. The purpose of the present invention is to provide a catenary measuring system that enables easy measurement and maintenance of catenary tracks by enabling the efficient management of each measurement data.

The catenary measuring system according to the present invention is a catenary measuring system for measuring the position of a catenary for supplying power to an electric railway vehicle, which is selectively installed at an arbitrary point on a rail and moves left and right between both rails on a track. A catenary measuring apparatus for measuring the position of the wired catenary; A data collection device which controls each measurement operation of the catenary measuring device and collects each measurement data; And a history management device which receives the measurement data collected by the data collection device and manages the database.

The catenary measuring apparatus includes a pole distance sensor for measuring a distance between a pole and a rail close to the pole among both rails; A tramline position sensor for searching the tramline while moving between both rails to measure the height from the rail to the tramline or the deviation of the tramline from the center; A rail height difference sensor measuring a height difference between both rails; And a main controller for controlling the pole distance sensor, the lane line position sensor, and the rail height difference sensor according to the command line measurement command transmitted from the data collection device.

Characterized in that it further comprises a position limit sensor for limiting the left and right movement of the tram line position measuring unit.

The main controller moves the catenary position measuring unit to the leftmost position based on the sensing signal of the position limit sensor when the command for measuring the height or the deviation of the catenary is received, and gradually moves to the right by an interval of 85% to 95% of the width of the catenary. The tramline is searched by moving step by step, and when the first tramline is detected, the tramline is searched by a distance of 0.5mm to 1.5mm, and the point when the number of dense search times is 5 to 7 is set as the center of the tramline. .

The data collection device includes a data input unit having a plurality of function keys operated by a user; A memory for storing measurement data transmitted from the catenary measuring apparatus; A data converter configured to perform data conversion for data communication with the catenary measuring apparatus or the history management device; A display unit for displaying a current operation status or outputting data requested by a user; A main controller configured to drive and control the catenary measuring apparatus according to a catenary measuring instruction input by a user while performing data communication with the catenary measuring apparatus or the history management apparatus and to output data requested by the user to the display unit; Characterized in that configured to include.

The data collecting device transmits the reference line declination data of the point supported by the electric pole to the tank line measuring device when the command of the tank line measuring command is input by the user, and the main controller of the catenary measuring device is transmitted from the data collecting device. After moving the catenary position measuring unit to a point corresponding to the catenary reference deviation data, the height or the deviation of the catenary is measured.

The data collection device may move to the leftmost position based on the sensing signal of the position limit sensor to perform the tramline search operation when the tramline position measurement unit is moved with reference to the tramline reference deviation data and the tramline is not detected. It is characterized by controlling.

The memory of the data collection device is further stored in each pole number, the height or deviation data for the tram line at the point supported by each pole, the reference data about the distance between the pole and the rail, the height difference between the two rails, the data collection The main controller of the device is characterized in that the control unit outputs the reference data and the measurement data to the display unit according to the user's data output request.

The history management device includes a key operation unit having a plurality of keys operated by a user; A display unit which displays a current operation status or displays data requested by a user; A reference data DB for storing and managing reference data for each pole; A measurement data DB for storing and managing measurement data for each pole transmitted from the data collection device; A main controller configured to perform history control for each pole while performing data communication with the data collection device according to a user's instruction, wherein the main controller is configured to include the reference data when data for the pole is requested from a user. After comparing and processing the reference data and the measurement data of the corresponding pole with reference to the DB and the measurement data DB, it is characterized in that the output to the display control.

On the other hand, the catenary measuring apparatus, the main body is supported by the support portion is mounted on the upper side of both rails, the control box is installed on one side of the main body, the control box operates the screw rod toward the hypothesis direction of the main body In order to measure the position of the tramline, the motor is installed to the main body, and the main body is slidably moved along the rotation of the screw rod to emit a laser beam in a vertical direction with respect to both rails and receive the reflected light. The tramline position sensor is installed to measure the tramline position.

The main body may further be provided with a position limit sensor for limiting the measurement section of the tram line position measuring unit.

The main body is further provided with a rail height difference sensor for measuring the height difference between both rails, the control box is further provided with a pole distance sensor for measuring the distance between the pole and the close rail of both rails, rail height difference or pole It is possible to be able to measure the distance.

The body may be further provided with a handle for moving.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram of a catenary measuring system according to the present invention, FIG. 2 is an electrical block diagram of the catenary measuring apparatus in FIG. 1, and FIG. 3 is a cross-sectional view of the catenary measuring apparatus in FIG. 1. 4 is a view for explaining a process of searching for the center of a tram line as the apparatus for measuring a tram line according to the present invention, FIG. 5 is an electrical block diagram of the data collection device of FIG. 1, and FIG. Electrical block diagram of the traceability management system in.

The tramline measuring system according to the present invention, as shown in Figure 1, is measured on the position of the tramline, such as the height or the deflection of the tramline, which is selectively installed on the rail in line with the pole of the point to measure the height or the deflection of the tramline A data collection device 200 implemented as a portable terminal such as a PDA (Persnal Digital Assistant) for controlling the measurement operation of the catenary measuring apparatus 100 and the catenary measuring apparatus 100 and collecting measured measurement data; And it is configured to include a history management device 300 for receiving the collected data collected by the data collection device 200 to make a database to manage based on the reference data for the height or deviation of the tram line.

The tramline measuring system according to the present invention configured as described above can easily measure the height or the deviation of the tramline by installing the tramline measuring device 100 easily moved to the point to be measured on the rails wired to the track. In more detail, the user installs the catenary measuring apparatus on a vertically lower rail of the catenary to be measured by carrying the catenary measuring apparatus 100 according to the present invention, which is small and lightweight. Subsequently, the data collection device 200 transmits a control signal according to a measurement command input by the user to the catenary measuring apparatus 100 based on the RS-232C communication method, and the catenary measuring apparatus 100 collects the data. According to the control signal of (200), the tramline of the corresponding point is searched to measure the height or the deviation of the tramline.

Meanwhile, the tramline measuring apparatus 100 measures the height or the deflection of the tramline as described above, and according to the request of the data collection device 200, the distance between the electric pole and the rail closest to the electric pole among both rails ( Or a dry pole gauge of the pole) or the height difference between the two rails on which the catenary measuring apparatus 100 is installed.

Subsequently, the catenary measuring apparatus 100 transmits the measurement data to the data collecting apparatus 200, and the data collecting apparatus 200 stores the measuring data transmitted from the catenary measuring apparatus 100 in a predetermined memory. Thereafter, the data collection device 200 is connected to the history management device 300 through the USB port, and then transfers the measurement data stored in the memory to the history management device 300 according to the command of the history management device 300. In addition, the history management apparatus 300 manages the measurement data transmitted from the data collection device 200 and the reference data of the corresponding tramline or the previously measured tramline measurement data as a database.

As shown in FIG. 2, the catenary measuring apparatus 100 performs a main communication with the data collecting apparatus 200 while performing overall control of the catenary measuring apparatus 100, and an operating power source. The power supply unit 102 for supplying the data, the data conversion unit 103 for performing data conversion for smooth data communication with the data collection device 200, the electric pole and both rails that support the tram line at the corresponding point using ultrasonic waves Electric pole distance sensor 104 to measure the distance between the close rails, rail height difference sensor 105 to measure the height difference between both rails, tram line position sensor 106 to measure the height of the tramline using laser, current operation A display unit 107 composed of a plurality of LEDs for indicating a state, an origin sensor 108 for indicating an initial operating point of the tramline position sensor 106, and a sensor for limiting an operating point of the tramline position sensor 106. And a position limit sensor 109 for indicating a left operating limit point and a right operating limit point, and a sensor moving unit 110 for moving the tramline position sensor 106 to the left or the right under the control of the main controller 101. It is configured by.

The catenary measuring apparatus according to the present invention configured as described above is compact and lightweight as a whole, and thus can be easily installed by a user. The tramline measuring apparatus 100 installed on the rail by the user measures the height or the deviation of the corresponding tramline according to the measurement command transmitted from the data collection device 200 operating according to the user's operation. The main controller 101 When the command to measure the height or the deviation of the tram line from the data collection unit 200 through the data conversion unit 103 is moved to control the sensor moving unit 110 to move the tram line position sensor 106 to the left or right You will search for the tram line. Subsequently, when the tramline is searched, the height or the deviation of the tramline is measured and the measured data is transmitted to the data collection device 200 through the data converter 103.

When the command line 100 receives a command to measure the distance between the pole or the height difference between both rails from the data collection device 200, the catenary measuring apparatus 100 uses the pole distance sensor 104 to be close to the pole of the pole and both rails. The distance between the rails is measured, and the height difference between the two rails at the point where the catenary measuring apparatus 100 is located by using the rail height difference sensor 105 is transmitted to the data collection device 200.

On the other hand, Figure 3 is a cross-sectional view schematically showing the mechanical configuration of the catenary measuring apparatus 100 according to the present invention, the catenary measuring apparatus 100 according to the present invention to guide the left and right movement to the upper center of the main body 150 The tram line position sensor unit 153 is provided to measure the height or the deviation of the tram line after searching the tram line while moving left and right by the rotational force of the screw 152 operated by the motor 170 along the guide groove 161. The right limit sensor 159 restricts the right movement distance of the tram line position sensor unit 153 to the right lower side of the tram line position sensor unit 153 and the left movement distance of the tram line position sensor unit 153 to the left downward. The left limit sensor 160 is installed, and a rail height difference sensor 163 for measuring the height difference of the rail 157 is installed at the center of the main body 150, and the data collection device 200 is located at one side of the main body 150. Data communication with The control box 151 is provided with a motor 170 to control the operation of the tram line position sensor unit 153. One side of the control box 151 measures the distance between the pole and the rail closest to the pole. The electric pole distance sensor 162 is installed, the power supply unit 158, the lower portion of the main body 150 to supply the operating power used in the control box 151 and the tram line position sensor unit 153, etc. on the other side of the main body 150 It is configured to include a support portion (154, 155) for seating and fixed to support the catenary measuring apparatus 100 according to the present invention on both rails. In addition, the vehicle lane measuring apparatus 100 may be provided with handles 164a and 164b to facilitate transportation, and wheels may be installed to the support units 154 and 155 to facilitate movement on the rail. In addition, the tramline measuring apparatus 100 can be carried by using a separate moving trolley, the moving trolley is equipped with wheels mounted on each rail and an installation portion in which a predetermined space for installing the tramline measuring apparatus 100 is formed. It is possible to move the instrument by sliding it on the rail. In addition, the moving cart may be driven to move back and forth by controlling the wheel according to a control signal applied from the data collection device 200.

The tramline measuring apparatus 100 configured as described above searches for the tramline while moving the tramline position sensor unit 153 to the left and right under the control of the control box 151 performing data communication with the data collection apparatus 200. The height or the deviation is measured, and the control box 151 restricts the tramline position sensor unit 153 from moving beyond the predetermined distance to the left or the right according to a sensing signal input from the left and right limit sensors 160 and 159.

In general, in order to measure the height or deviation of the tramline, the tramline located at a desired point must first be searched and then the center of the tramline is located. As shown in FIG. 4, the tramline measuring device 100 according to the present invention is a main controller. Drive control of the sensor moving unit 110 according to the tram line search command input from the data collection device 200 to move the tram line position sensor 106 to the left movement limit based on the data of the position limit sensor 109. After the movement, the tramline is searched while moving step by step at an interval of 85% to 95% of the tramline width from the point to the right. In this case, the width of the tramline is 15.10mm for the high-speed ship and 12.20mm for the general ship, so the search interval of the tramline is preferably about 90% of the width of the tramline.

When the first tramline is searched while searching from the left as described above, from this time, the center of the tramline is found while densely moving and controlling the sensor unit at intervals of 1 mm. Considering the width of a conventional tank line, moving about 15 times at a 1mm interval enables the search to the rightmost point of the tank line. The vehicle line searching apparatus 100 according to the present invention starts from a point where the left portion of the first tank line is searched. The 7th point is recognized as the center of the tramline, and the tramline center search is terminated. At this time, the trajectory is closely searched and the seventh point is recognized as the center of the tramline because the width of the tramline is considered to be 15.10 mm in width. In the case of narrow or wide, it is desirable to set different density search times to be recognized as the center of the tram line. In addition, it is possible to recognize the half of the total number of search times as the center of the tank line after dense search of the tank line without separately setting the dense search frequency recognized as the center of the tank line.

Subsequently, when the center controller 101 searches the center of the tramline, the main controller 101 measures the height of the tramline and the deviation of the tramline from the center and transmits the measured height and the deflection data to the data collection device 200. When the main controller 101 completes the measurement of the height or the deviation of the tramline, the main controller 101 moves the tramline position sensor 106 to the origin, which is the initial operating point. At this time, it is reasonable that the height of the tramline is the sum of the distance measured by the tramline position sensor 106 and the distance between the rail and the tramline position sensor 106.

Meanwhile, as illustrated in FIG. 5, the data collecting device 200 performs control of data communication with the history management apparatus 300 or the catenary measuring apparatus 100 while controlling and controlling the height or deviation of the catenary line according to a user's function key operation. , A main controller 201 for controlling a measurement operation on a distance between a pole and a rail and a height difference of a rail, a power supply unit 202 for supplying operation power of each part, and a plurality of function keys to be operated by a user. Measured by the data input unit 203, the display unit 204 for displaying the current operation status or measurement data for each pole, the basic data for driving control of the catenary measuring apparatus 100 or the catenary measuring apparatus 100 And a data converter 206 for performing data conversion for data transmission and reception with the memory 205, the history management apparatus 300, or the catenary apparatus 100 for storing the transmitted measurement data. It is configured. Here, a plurality of function keys provided in the data input unit 203 is implemented using a touch screen in the case of a PDA as in the present invention.

The data stored in the memory 205 may store reference data about the tramline deviation of each point where the measurement is required in addition to the measurement data transmitted from the tramline measuring apparatus 100. As described above, the reference deviation data, which is previously stored in the memory 205, is stored in the memory 205 when the command line measurement command is input to the data collection device 200 by the user, for example. It is possible to utilize the tramline position sensor 106 to move directly to the corresponding point with reference to the tramline reference deviation data of the corresponding point, so as to shorten the tramline search time. In this case, for example, if the reference deviation data is +200 mm, the data collection device 200 may be controlled to perform the tram line search operation after approximately moving to the +150 mm point in preparation for the possibility that the actual deviation of the tank line has been converted. . When the tramline is searched for the tramline after moving the tramline position sensor 106 based on the reference deviation data, the data collection device 200 does not detect the tramline at the corresponding point (or a predetermined section). After moving the tramline position sensor 106 to the left side based on the sensing signal of), the tramline search operation as described above is performed.

The data collection apparatus 200 configured as described above controls the catenary measuring apparatus 100 through the data converting unit 206 when the catenary measurement is input through the data input unit 203 from the user, thereby controlling the height, the deviation, the pole and the The distance between the rails and the height difference between the two rails are measured and stored in the memory 205. And, as shown in Table 1 below, the data collecting device 200 displays a pole number, a tank line height, a tank line deviation, a height difference, a pole distance, and the like for one pole. As shown in [Table 2] below, the pole numbers, the lane line height, the lane line deviation, the height difference, and the pole distance can be displayed for a plurality of poles. In this case, the data collection device 200 may display different colors according to the characteristics of the data displayed through the display unit 204. For example, the nature of the measurement data is determined by the error between the reference data and the measurement data, and the identification is classified into TV (Target Value), NI (No Intervention), AV (Alert Value), and IV (Intervention Value). It can be displayed easily. TV (Target Value) is the target value during adjustment, NI (No Intervention) is the value that does not require maintenance, AV (Alert Value) is the value that does not need to be operated but is repaired, and IV (Intervention Value) is the equipment As there is a danger to safety, it indicates a value that requires immediate repair without establishing a regular maintenance plan.

Jeonju Number 107-19

Measure Measured value (mm) Displacement (mm) evaluation Catenary height 5070 -10 TV Catenary deviation 220 20 IV Rail height difference 15 5 Jeonju Distance 237 15

date 2004-11-15

Jeonju Number Catenary height Catenary deviation Height difference Jeonju Distance 107.11 5090 Left 200 One 2306 107.12 5095 195 left 0 2300 107.13 5065 210 2 2227 107.14 5080 180 5 2459

On the other hand, the history management device 300, as shown in Figure 6, controls the data communication with the data collection device 200, as well as the main controller for processing the measurement data transmitted from the data collection device 200 Memory 302 for storing various data necessary for the operation of the 301 and the main controller 301, a data converter 303 for data communication with the data collection device 200, and a display unit 304 for displaying the current operation status. ), The key operation unit 305 where the key is input by the user, each pole number, the tram line height or deviation of the point where the measurement is required, the distance between the poles and the rails, the height difference between the rails, and the distance from the reference point (for example, Seoul) Standard data DB 310, which stores and manages reference data, such as management section DB 320 for storing and managing management section information, such as pole numbers, electric office information, and electricity distribution information, pole numbers, measurement data, and measurement. , It is configured to include the measurement data DB (330) for storing management information of the measurement time, or notes.

The history management apparatus 300 configured as described above receives and stores and manages measurement data for each pole through data communication with the data collection device 200, and displays each pole data according to a user's request through the display unit 304. Will print.

On the other hand, as shown in Table 3 below, the reference data DB 310 stores and manages reference data such as pole numbers, catenary height, standard deviation, pole distance, rail height difference, and KP information for each pole. The measurement data DB 330 stores and manages measurement data for each measured pole, and the main controller 301 outputs the measurement data for any pole according to a user's request. Compared to the reference data managed by the measurement data and the measurement data managed by the measurement data DB 330, as shown in Table 4 below, the pole number, measurement date and time, the lane line height, the tramline deviation for the pole. Information such as height difference and pole distance is displayed and controlled through the display unit 304 so as to easily identify colors different from each other according to the characteristics of each data.

Jeonju Number Tank line height Catenary deviation Jeonju Street Height difference KP Information 84-45 5080 Left 200 2643 0 84.410 84-47 5080 Ooh 200 2645 0 84.455 84-49 5080 Left 200 2642 0 84.505 85-1 5080 Ooh 200 2642 0 85.040 85-3 5080 Left 200 2543 0 85.085 85-5 5080 Ooh 200 2642 2 85.120 85-7 5130 Left 350 2642 3 85.170 5080 Left 150 2642 5 85.176 85-9 5080 Left 100 2642 8 85.220 5080 Ooh 100 2642 6 85.230 85-11 5080 Ooh 150 2642 2 85.270 5130 Ooh 300 2642 One 85.275 85-13 5080 Left 200 2642 0 85.320 85-15 5080 Ooh 200 2642 0 85.350

Jeonju Number 107-19 Pause Tank line height Tank line deviation Height difference Jeonju Distance 2004-11-15 20:00 5081 Left201 0 2306 2004-10-15 20:00 5095 199 One 2306 2004-09-15 20:00 5065 Left190 3 2227 2004-08-15 20:00 5080 180 One 2459

In addition, as shown in Table 5 below, the main controller 301 may output respective data for a plurality of poles based on a measurement date according to a user's request. In addition, as shown in Table 6 below, the main controller 301 outputs each tramline deviation data for a plurality of poles as a graph and a chart according to a user's request, so that the information on each pole can be easily understood. It is possible to do so.

date 2004-11-15 Jeonju Number Tank line height Tank line deviation Height difference Jeonju Distance 105.01 5121 Left201 0 2306 105.03 5135 199 One 2306 107.05 5065 Left190 3 2227 107.07 5080 180 One 2459

As described above, the above-described embodiment is described with respect to the most preferred example of the present invention, and the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the technical spirit of the present invention. It is obvious to me.

The catenary measuring system according to the present invention has the effect of measuring the height or the deviation of the catenary, the distance between the pole and the rail, and the height difference between the two rails very precisely by using laser or ultrasonic waves.

In addition, the present invention has the effect that it is easy to transport to the track or to move to another measuring point in the track because it is less volume and less weight.

In addition, the present invention has the effect that can perform the measurement of the lane with a small number of personnel.

Claims (14)

In a catenary measuring system for measuring the position of the catenary for supplying power to an electric railway vehicle, A tramline measuring device installed at an arbitrary point on the rail and measuring a position of the tramline wired to the track while moving between the two rails in a straight line; And a data collection device configured to control the measurement operation of the catenary measuring device and to collect respective measurement data. The method of claim 1, And a history management device configured to receive the measurement data collected by the data collection device and to manage the history of the tram line position information for a predetermined line section. The method of claim 1, The catenary measuring apparatus, An electric pole distance sensor for measuring the distance between the electric pole and the rail close to the electric pole of the electric pole and both rails; A tramline position sensor for searching the tramline while moving between both rails to measure the height from the rail to the tramline and the deviation of the tramline from the center; Rail height difference sensor which measures the height difference of both rails; And a main controller configured to control driving of the pole distance sensor, the lane line position sensor, and the rail height difference sensor according to a control signal applied from a data collecting device. The method of claim 3, wherein It further comprises a position limit sensor for limiting the movement section of the tram line position measurement unit, The main controller limits the left and right moving sections of the catenary position measuring unit according to the sensing signal from the position limiting sensor. The method of claim 4, wherein The main controller moves the catenary position measuring unit to the leftmost position based on the sensing signal of the position limit sensor when the command for measuring the height or the deviation of the catenary is received, and gradually moves to the right by an interval of 85% to 95% of the width of the catenary. The tramline is searched by moving step by step, and when the first tramline is detected, the tramline is searched by a distance of 0.5 mm to 1.5 mm, and the point when the number of dense search times is 5 to 7 is set as the center of the tram line. Catenary measurement system. The method according to any one of claims 1 to 5, The data collection device, A data input unit having a plurality of keys operated by a user; A memory for storing measurement data transmitted from the catenary measuring apparatus; A data converter configured to perform data conversion for data communication with the catenary measuring apparatus; A display unit for displaying a current operation status or outputting data requested by a user; And a main controller configured to drive and control the catenary measuring apparatus according to a catenary measuring command input by a user while performing data communication with the catenary measuring apparatus and to output data requested by the user to the display unit. Catenary measuring system characterized by. The method of claim 6, The data collecting device transmits the reference line declination data of a point supported by the corresponding pole to the tank line measuring device when a command line measurement command is input by the user. And a main controller of the catenary measuring apparatus measures the height or the deviation of the catenary after moving the catenary position measuring unit to a point corresponding to the catenary reference deviation data transmitted from the data collection device. The method of claim 6, The data collection device controls to perform the tramline search operation by moving to the leftmost position based on the sensing signal of the position limit sensor when the tramline position sensor is moved by the tramline reference deviation data and the tramline is not detected. Catenary measuring system, characterized in that. The method of claim 6, The memory of the data collection device further stores each pole number, height or deviation data for the tram line at the point supported by each pole, the reference data for the distance between the pole and the rail, the height difference between the two rails, And a main controller of the data collection device to control the output to the display unit by comparing the reference data and the measurement data for electric poles according to a user's data output request. The method of claim 2, The history management device, A key operation unit having a plurality of keys operated by a user; A display unit which displays a current operation status or displays data requested by a user; A reference data DB for storing and managing reference data for each pole; A measurement data DB for storing and managing measurement data for each pole transmitted from the data collection device; And a main controller configured to control history management for each pole while performing data communication with the data collection device according to a user's instruction. The main controller compares the reference data and the measurement data of the preceding pole with reference to the reference data DB and the measurement data DB when the user requests data about the pole, and then outputs the control to the display unit. . The main body is supported by the support portion mounted on the upper side of both rails, the control box is installed on one side of the main body, The control box is provided with a motor for operating the screw rod toward the construction direction of the main body, The main body is provided with a tram line position sensor unit for measuring the position of the tramline by emitting a laser beam in a vertical direction with respect to both rails and receiving the reflected light while sliding the guide groove according to the rotation of the screw rod, Catenary measuring apparatus, characterized in that for measuring the catenary position. The method of claim 11, Wherein the main body position measuring device further comprises a position limit sensor for detecting a moving section of the tram line position measuring unit, the tram line position sensor unit to move out of the measuring section. The method according to claim 11 or 12, The main body is further provided with a rail height difference sensor for measuring the height difference between both rails, The control box of claim 1, wherein the electric pole distance sensor for measuring the distance between the electric pole and the close rail of both rails is installed. The method of claim 11, The main body measuring apparatus, characterized in that the handle is further installed for the main body.

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