KR20190132778A - Apparatus for measuring position of spacer, Method thereof, and Compuer readable storage medium having the same method - Google Patents

Abstract

Provided are a spacer position measurement device and a method thereof. The spacer position measurement device (20) comprises: a body (200); a guide roller (220) installed on one side of an upper surface of the body (200) to be caught on a wire (120); a drive roller (260) installed on the other side of the upper surface of the body (200), arranged at a predetermined interval from the guide roller (220) to be caught on the wire (120), and rotated by a sub motor (210); and a rail assembly (230) preventing separation from the wire (120) between the guide roller (220) and the drive roller (260).

Description

Apparatus for measuring position of spacer, a method, and a computer readable storage medium having the same method

The present invention relates to a spacer position measuring apparatus, and more particularly, to a spacer position measuring apparatus and method for displaying and / or checking the mounting position of the spacer damper to be installed on the overhead transmission line or more.

In addition, the present invention maintains a constant distance between the wires in the overhead transmission line, prevents wire breakage or collision between the wires when the vibration caused by the wind or vibration caused by electrical accidents, and the hardness of the wire material The present invention relates to a spacer position measuring device and method for indicating an accurate mounting position of a spacer damper capable of supporting an electric wire without damaging the electric wire surface even in the case of small electric wires.

During recent transmission line accidents, failures due to contact between small conductors occur frequently in the 345kV two-conductor transmission line. This is very likely to cause damage to the overhead transmission line due to breakage of the spacer damper and twisting of the wire by the electromagnetic absorption input between the small conductors.

In the construction of overhead transmission lines, the installation of spacer dampers is generally performed by the transmission electrician using a distance gauge mounted on the spacer car. Installation intervals are to be installed at regular intervals depending on the length of the wire.

However, it is very likely that errors in the distance gauges attached to the spacer cars, and difficulties in the installation environment when constructing overhead transmission lines and errors in the installation position due to human error are very high. In addition, when installing spacers, check the condition of wires after stranded wires. For example, if the mounting of the wire between the specified spans differs from the calculated value and the actual installation, the spacer installation position is likely to be installed out of compliance.

Recently, the existing spacer cars, which are diversified in the type and configuration of transmission conductors applied to transmission lines, cannot be installed or require various standards to be applied, which increases the possibility of operator error and / or misapplication of standards. have. As such, the current spacer installation method has a problem in that it is difficult to verify the mounting position and the ground supervisor.

In other words, after installation of overhead transmission lines, the ground supervisor may not be able to determine the exact position of the wire and the spacer mounting position. In the case of a hole worker, the exact spacer mounting position cannot be known. As an alternative thereto, a distance measuring device may be installed in the spacer car, but only the measurement of the mounting of the electric wire is possible, and thus it cannot be installed according to the span distance.

Therefore, as one of the countermeasures of the above problems, it is necessary to solve the problem by adding the spacer damper and adjusting the gap of the spacer damper. In this way, it is necessary to improve the efficiency of the overhead transmission line operation by calculating and installing the exact position of the spacer damper.

1. Korea Registered Patent No. 10-1006180 (Registration Date: 2010.12.29) 2. Korean Patent Publication No. 1020100048146 3. Korean Patent Publication No. 1020080024852

The present invention has been proposed to solve the problems caused by the background art, and provides an apparatus and method for measuring a spacer position for displaying and / or checking a mounting position of a spacer damper installed on a overhead transmission line. have.

In addition, the present invention maintains a constant distance between the wires in the overhead transmission line, prevents wire breakage or collision between the wires when the vibration caused by the wind or vibration caused by electrical accidents, and the hardness of the wire material Another object of the present invention is to provide a spacer position measuring apparatus and method for estimating and indicating the exact mounting position of a spacer damper that can support a wire without damaging the surface of the wire even in the case of a small wire. .

The present invention provides a spacer position measuring device for displaying and / or checking the mounting position of the spacer damper to be installed in the overhead transmission line of the corridor or more in order to achieve the problem presented above.

The spacer position measuring device,

Body;

A guide roller installed on one side of an upper surface of the body and caught by an electric wire;

A driving roller installed on the other upper end surface of the body and disposed at a predetermined interval from the guide roller to be caught by the wire and rotated by a sub-motor; And

And a rail assembly preventing separation from the electric wire between the guide roller and the driving roller.

At this time, the guide roller and the driving roller are connected to the upper surface of the body, characterized in that installed in each of the pair of vertical members arranged at a predetermined interval.

In addition, the pair of vertical members is characterized in that connected to the horizontal member.

In addition, the rail assembly is characterized in that it is installed on one side of the horizontal member.

In addition, the rail assembly is characterized in that consisting of a plurality of rails.

In addition, the plurality of rails are semi-ringed, characterized in that the upper end has a joint portion to rotate outward.

In addition, the upper jaw is characterized in that the prevention jaw is formed in the joint portion so as not to rotate outward at a predetermined angle.

In addition, the body, the measurement sensor for measuring the horizontal angle; And a calculation module that calculates a moving distance by using the rotation of the sub-motor, and calculates a mounting position of the spacer to be installed on the wire of the overhead transmission line using the moving distance and the horizontal angle.

In addition, the body, the mounting position indicator for displaying the mounting position; And a control module for controlling the mounting position indicator.

In this case, the display is characterized in that the application of the colored material in accordance with the injection of the colored material.

In addition, the mounting position is characterized by using a virtual suspension graph calculated using the slope obtained through the moving distance and the horizontal angle.

In addition, the suspension graph is completed by measuring the span distance, which is the horizontal distance between the mounting and transmission tower of the actual length of the wire, characterized in that made by moving on the wire once.

In addition, the display is characterized in that it is made while moving back on the wire once, then back.

On the other hand, another embodiment of the present invention, (a) preparing a spacer position measuring device; (b) moving the spacer position measuring device onto a track to complete a virtual suspension graph; And (c) displaying the mounting position of the spacer on the line according to the virtual suspension graph when the spacer position measuring apparatus returns.

On the other hand, another embodiment of the present invention provides a computer readable storage medium storing program code for executing the spacer position measuring method described above.

According to the present invention, by installing the spacer in the correct position through the mounting of the wire and the ear canal, and the span distance, it is possible to ensure the safety of the operation of the overhead transmission line by preventing sideways or small conductor contact.

In addition, another effect of the present invention is that it is possible to check the spacer position and the ear canal of the existing track and to build a database (DB), which enables efficient and accurate track management.

In addition, another effect of the present invention is that the maintenance cost can be reduced by preventing the failure and damage to the equipment by the correct installation and / or management of the track.

1 is a conceptual diagram illustrating an installation example of a general overhead transmission line spacer.
2 is a conceptual diagram of a spacer position measuring device 20 according to an embodiment of the present invention.
3 is a front sectional view when the spacer position measuring device 20 shown in FIG. 2 passes through the overhead transmission line.
4 is a front sectional view when the spacer position measuring device 20 shown in FIG. 2 passes through the electric wire grip.
5 to 9 are views showing a change in operation when the semi-circular rail of the spacer position measuring device 20 shown in FIG. 2 passes through the electric wire grip.
FIG. 10 is a conceptual diagram illustrating a spacer mounting position after the spacer position measuring apparatus 20 illustrated in FIG. 2 measures a mounting / span distance of a overhead transmission line.
11 is a conceptual diagram showing a mounting calculation principle using the slope of the overhead transmission line and the number of revolutions of the roller according to an embodiment of the present invention.
12 is a flowchart illustrating a process of calculating a spacer mounting position after mounting / span distance measurement of a overhead transmission line according to an embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing each drawing, like reference numerals are used for like elements. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term “and / or” includes any combination of a plurality of related items or any item of a plurality of related items.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.

Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined in this application. Should not.

Hereinafter, a spacer position measuring apparatus and a method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram illustrating an installation example of a general overhead transmission line spacer. In general, the number of wires that form one phase in a overhead transmission line is composed of one or more wires, and as the power supply voltage increases, the number of wires that constitute a phase for the purpose of mitigating corona characteristics and electric field strength is composed of multiple strands. The higher the transmission voltage, the greater the number of wires.

As an example, two wires constitute about one phase in an alternating current (AC) 154kV transmission line, two or four in an AC 345kV transmission line, and six in an AC 765kV transmission line. The overhead line constructed as described above is supported by the first to fourth transmission pylons 110-1, 110-2, 110-3, and 110-4, and the wire 120 is wired between the transmission tower and the transmission tower.

If the number of wires in a phase is multiple strands, they can collide with each other by wind or electric vibrations, so the spacer damper is placed at a certain position on the overhead line to prevent collisions between wires and maintain a constant distance between the wires. Install 130.

Spacer damper 130 is a vibration damper that controls the vibration of the small conductors in the spacer to maintain a constant interval between the small conductors of the multi-conductor transmission line, the gap between the small conductors to prevent the twist, slip jump (Sleet jump) For this purpose, it is installed and operated at regular intervals according to the transmission line span.

That is, in general, 2N small conductors (where N is a natural number) constitute one overhead line in the order of a single conductor, a corridor, two conductors, and six conductors. In order to make constant the conductor spacing of the polyconductor transmission line, an apparatus is required, which is called a spacer, and a device having a vibration damper for controlling vibration of the small conductor in the spacer is called a spacer damper.

In addition, the higher the transmission voltage, the longer the distance between transmission pylons, the greater the influence of the wind, the more difficult to manage the need to install a spacer damper in the correct position increases. In particular, about AC 765kV, which is the highest transmission voltage in Korea, as in Korea, higher accuracy is required because it passes through Gangwon-do, which is a rough terrain composed of high mountains.

HVDC (high-voltage, direct current) transmission lines, which are currently undergoing multi-faceted reviews and cooperative systems for passing through South Korea-North Korea-Russia, are expected to receive ultra-high voltage transmissions of at least 500 kV. In addition, the span is also considered to be equal to or greater than about AC 765 kV. Moreover, as the North Korea progresses, it is necessary to install precise spacer dampers in terms of management.

In addition, the position and quantity calculation factor of the spacer damper in one span of the transmission line is determined by the vibration phenomenon caused by wind. In other words, it is mainly determined by the subspan vibration and the breeze vibration, and the torsion of the multiconductor by the short-circuit electromagnetic force and the icing and galloping by the icing and the rigid body vibration by the wake should be considered.

As described above, the end-subspan distance from the wire support point of the transmission pylons 110-1 to 110-4 to the first spacer damper in consideration of the variables affecting the determination of the span span within the span, Subspan vibration simulation including general area and special area, regional wind speed, allowable amplitude, and cable tension after considering the maximum sub span spacing and the ratio of adjacent sub span spacing that can be installed with maximum long span spacing. Determine the installation location by the length of the wire through. Currently, the Cost Estimation Guidelines for Construction Costs establish and operate the spacer damper installation standard and installation interval according to the length of the transmission line.

2 is a conceptual diagram of a spacer position measuring device 20 according to an embodiment of the present invention. Referring to Figure 2, the spacer position measuring device 20, the body 200, the guide roller 220 is installed on one side of the upper surface of the body 200 is caught on the wire 120, the body of the 200 It is installed on the other top surface, is disposed at a predetermined interval with the guide roller 220 is caught on the wire 120, the drive roller 260 is rotated by the sub-motor 210, the drive with the guide roller 220 It may be characterized in that it comprises a rail assembly 230 or the like between the roller 260 to prevent the separation from the wire 120.

The body 200 calculates a moving distance using the measurement sensor 203 measuring the horizontal angle and the rotation of the sub-motor 210, and uses the moving distance and the horizontal angle to determine the space of the spacer to be installed on the wire of the overhead transmission line. It may include a calculation unit 201 for calculating the mounting position, a power supply 204 for supplying power to the components constituting the spacer position measuring device 20 and the like.

In addition, the body 200 may be configured with a communication circuit 205 for communication with an external communication device (not shown). The communication circuit 205 may support wired or wireless communication. Wired communication can be RS232, RS485, Modbus, CC-Link communication, Ethernet communication, etc.Wireless communication can be IrDA (Infrared Data), Local Area Network (Bluetooth), Bluetooth, LiFi (Light Fidelity), WiFi (Wireless Fidelity), NFC (Near Field Control), and the like.

The guide roller 220 and the driving roller 260 are connected to the upper surface of the body 200, and are installed in the pair of vertical members 240 disposed at the predetermined intervals, respectively. In this case, the pair of vertical members 240 are connected to the horizontal member 250. In particular, the vertical member 240 and the horizontal member 250 is connected in the "H" shape.

The power supply 204 may be comprised of a battery (not shown), a voltage regulator, a converter, and the like. In other words, the power supply 204 may be supplied with an external power source or may use a power source of a battery that is self-configured.

At this time, the battery is a battery cell (not shown) is configured in series and / or parallel, the battery cell is a high voltage battery cell, such as nickel metal battery cells, lithium ion battery cells, lithium polymer battery cells, all-solid battery cells, etc. Can be. In general, a high voltage battery is a battery used as a power source and refers to a high voltage of 100 V or more. However, the high voltage battery is not limited thereto, and a low voltage battery is also possible.

The measuring sensor 203 performs a function of measuring a horizontal angle. The measurement sensor 203 may be a horizontal angle sensor for detecting a horizontal angle.

The calculation module 201 calculates the moving distance by using the rotation of the sub-motor 210 and calculates the mounting position of the spacer to be installed on the wire of the overhead transmission line using the moving distance and the horizontal angle. That is, the sub-motor 210 is connected to the driving roller 260 by a gear (not shown), and the driving roller 260 also rotates as the sub-motor 210 rotates. Therefore, it is possible to calculate the movement distance which the drive roller 260 moved through this rotation.

With continued reference to FIG. 2, the body 200 is provided with a mounting position indicator 206 for indicating a mounting position and a control module 202 for controlling the mounting position indicator 206. Mounting position indicator 206 sprays a colored material (such as ink) to apply the colored material onto wire 120. To this end, the mounting position indicator 206 may include a spray nozzle (not shown) for ejecting ink, an injection pump (not shown) for pressurizing the ink, and an ink container (not shown) containing ink. Since this injection method is widely known, further description will be omitted for a clear understanding of the present invention.

The control module 202 confirms the mounting position calculated by the calculation module 201 and controls the mounting position indicator 206 at this mounting position to perform the function of ejecting ink.

The term "~ module" shown in Figure 2 refers to a unit for processing at least one function or operation, which may be implemented in a combination of hardware and / or software. In hardware implementation, an application specific integrated circuit (ASIC), a digital signal processing (DSP), a programmable logic device (PLD), a field programmable gate array (FPGA), a processor, a controller, and a microprocessor are designed to perform the above functions. , Other electronic units, or a combination thereof. In the software implementation, the module may be implemented as a module that performs the above-described function. The software may be stored in a memory unit and executed by a processor. The memory unit or processor may employ various means well known to those skilled in the art.

3 is a front sectional view when the spacer position measuring device 20 shown in FIG. 2 passes through the overhead transmission line. Referring to FIG. 3, the spacer position measuring device 20 passes through the wire 120. In this case, the individual rails of the rail assembly 230 are all closed. In other words, the individual rails are semi-circular, and consist of an upper end 332 and a lower end 331, and have a joint 233 so that the upper end 332 rotates outward at an angle. Of course, the jaw 234 is formed to prevent the joint portion 233 from escaping beyond a predetermined angle.

In addition, the joint 233 may be a hinge, a hinge, or the like. The lower end 331 is fixed to the horizontal member 250. An enlarged view of this rail is shown on the right.

4 is a front sectional view when the spacer position measuring device 20 shown in FIG. 2 passes through the electric wire grip. In general, since the wires 120 are several strands, horizontal bars 410 are installed to maintain a constant gap so that they are parallel to each other, and the ends of the horizontal bars 410 are wires to be fixed to the wires 120. Grip 420 is configured. In other words, a method of fixing to the wire 120 by spreading up and down like a clothespin may be used.

5 to 9 are views showing a change in operation when the semi-circular rail of the spacer position measuring device 20 shown in FIG. 2 passes through the wire grip 420. 5 to 9, the rail assembly 230 is installed on one side of the horizontal member 250, and the rail assembly 230 includes first to fourth rails 510, 520, 530, and 540.

5 illustrates a state in which all of the first to fourth rails 510, 520, 530, and 540 are closed. This is the state before the spacer position measuring device 20 has passed through the wire grip 420, as shown in FIG. 3.

6 shows a state where the spacer position measuring device 20 begins to pass through the wire grip 420. In this case, when viewed from the wire grip 420 side, the first rail 510 at the very front is opened. Thereafter, as illustrated in FIGS. 7 to 9, the second rail 520, the third rail 530, and the fourth rail 540 are sequentially opened. In other words, if one rail is opened so as not to be separated from the wire 120 while crossing the wire grip 420, the remaining rails remain closed.

FIG. 10 is a conceptual diagram illustrating a spacer mounting position after the spacer position measuring apparatus 20 illustrated in FIG. 2 measures a mounting / span distance of a overhead transmission line. The position of the existing spacer is measured and analyzed along with the wire mounting and span distance using the change of the horizontal angle that occurs when the wire grip passes with a greater thickness than the wire to determine whether it is the original mounting position.

In one embodiment of the present invention, while the spacer position measuring device 20 is moved, the colored material such as ink is sprayed on the calculated mounting position so that the operator can install the spacer at the correct position.

At this time, the mounting of the wire 120 refers to the actual length of the wire sagging in a suspension type, the span distance means the horizontal distance between the transmission tower and the transmission tower. The mounting is obtained by drawing a virtual suspension graph using the distance obtained by the servo motor (210 in FIG. 2) and the tilt obtained through the measurement of the horizontal angle, and calculates the span distance.

Referring to FIG. 10, in order to measure the mounting distance and the span of the wire 120, the spacer position measuring device 20 first moves a line to complete a suspension graph (1010). Then, the spacer position measuring device 20 returns to display the mounting position of the spacer (1020).

On the contrary, in the case of checking the mounting position of the spacer, when the suspension graph and the spacer position recording are completed while moving to the one-way, the position and the accuracy of each spacer are notified by comparing the position with the graph.

11 is a conceptual diagram showing a mounting calculation principle using the slope of the overhead transmission line and the number of revolutions of the roller according to an embodiment of the present invention. Referring to FIG. 11, as the driving roller 260 rotates forward, the inclinations θ ₁ , θ ₂ ,..., Θ _m and the sagging height SAG are calculated. The sagging height SAG is a sagging height of the wire 120, which is a difference between the lowest point and the horizontal point. Where L ₁ ,... L _m are 2πr, and r is the diameter of the drive roller 260. P ₁ ,..., P _m are one rotational point 1120 of the drive roller 260, and H ₁ ,..., H _m are the individual heights each time the drive roller 260 is rotated. Thus, the sagging height SAG is the sum of H ₁ , ..., H _m .

The suspension graph 1110 is generated using the rotation points 1120 and the sagging height SAG.

12 is a flowchart illustrating a process of calculating a spacer mounting position after mounting / span distance measurement of a overhead transmission line according to an embodiment of the present invention. 12, the spacer position measuring apparatus 20 is prepared on the electric wire 120, and it moves to the electric wire on the electric wire 120 (step S1210, S1220).

While the spacer position measuring device 20 is moved, the suspension graph is finally completed (step S1230).

Thereafter, the spacer position measuring device 20 returns to the starting point and displays the mounting position of the spacer (steps S1240 and S1250).

In addition, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in a program instruction form that can be executed by various computer means and recorded in a computer-readable medium. The computer readable medium may include program (instruction) code, data file, data structure, etc. alone or in combination.

The program (command) code recorded on the medium may be those specially designed and configured for the present invention, or may be known and available to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs, DVDs, Blu-rays, etc., and ROMs and RAMs. Semiconductor memory devices specifically configured to store and execute program (command) code, such as RAM), flash memory, and the like.

Here, examples of program (instruction) code include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

20: spacer position measuring device
120: wire
200: body
210: servo motor
220: guide roller
230: rail assembly
240: vertical member
250: horizontal member

Claims (18)

Body 200;
A guide roller 220 installed on one side top surface of the body 200 and caught by the wire 120;
A driving roller 260 installed on the other upper end surface of the body 200 and disposed at regular intervals with the guide roller 220 to be caught by the wire 120 and rotated by the sub-motor 210; And
A rail assembly 230 between the guide roller 220 and the driving roller 260 to prevent separation from the wire 120;
Spacer position measurement device characterized in that it comprises a.
The method of claim 1,
The guide roller 220 and the driving roller 260 are connected to the upper surface of the body 200, the spacer position measuring device, characterized in that installed in each of the pair of vertical members 240 arranged at a predetermined interval .
The method of claim 2,
The pair of vertical members (240) is a spacer position measuring device, characterized in that connected to the horizontal member (250).
The method of claim 3, wherein
The rail assembly (230) is a spacer position measuring device, characterized in that installed on one side of the horizontal member (250).
The method of claim 1,
The rail assembly 230 is a spacer position measuring device, characterized in that consisting of a plurality of rails (510, 520, 530, 540).
The method of claim 5,
The plurality of rails (510, 520, 530, 540) is semi-cyclic, spacer position measuring device, characterized in that the upper end (332) has a joint portion (233) to rotate outward.
The method of claim 6,
Spacer jaw 234 is characterized in that the upper jaw (234) is formed in the joint portion 233 so that the upper end (332) is not rotated outward at a predetermined angle.
The method of claim 1,
The body 200,
A measuring sensor 203 for measuring a horizontal angle; And
A calculation module 201 that calculates a moving distance by using the rotation of the sub-motor 210 and calculates a mounting position of a spacer to be installed on the wire of the overhead transmission line using the moving distance and the horizontal angle. Spacer position measuring device characterized in that.
The method of claim 8,
The body 200,
A mounting position indicator 206 for displaying the mounting position; And
And a control module (202) for controlling the mounting position indicator (206).
The method of claim 9,
And said display is made by application of a colored material in accordance with the injection of the colored material.
The method of claim 9,
The mounting position is a spacer position measuring apparatus, characterized in that using a virtual suspension graph calculated using the slope obtained through the moving distance and the horizontal angle.
The method of claim 11,
The hanging graph is completed by measuring the span distance, which is the horizontal distance between the mounting and the transmission tower, which is the actual length of the wire 120, the spacer position measuring device, characterized in that the movement on the wire (120) once.
The method of claim 12,
The display device is a spacer position measuring device, characterized in that the display is made by moving back on the wire (120) once and then back again.
(a) preparing a spacer position measuring device 20;
(b) moving the spacer position measuring device 20 onto the wire 120 to complete a virtual suspension graph; And
(c) displaying the mounting position of the spacer on the wire (120) according to the virtual suspension graph when the spacer position measuring device (20) returns;
Spacer position measurement method comprising a.
The method of claim 14,
And said marking is made by application of a colored material in accordance with the injection of the colored material.
The method of claim 15,
The mounting position is a spacer position measuring method, characterized in that using a virtual suspension graph calculated using the slope obtained through the moving distance and the horizontal angle.
The method of claim 16,
The suspension graph is completed by measuring the span distance, which is the horizontal distance between the mounting and the transmission tower of the actual length of the wire (120), the spacer position measuring method, characterized in that the movement on the wire (120) once.
A computer readable storage medium storing program code for executing the method of measuring a spacer position according to any one of claims 14 to 17.

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