KR102522703B1 - System for Monitoring Transmission Tower Using Optical Fiber Composite Overhead Ground Wire as Communication Line and Power Source by Medium of Jumper Cable - Google Patents

Abstract

A transmission tower monitoring system is provided. This transmission tower monitoring system installs a number of couplers on jumper cables connected to optical fiber composite overhead lines installed in a plurality of transmission towers. A detection unit is installed in a transmission tower in a remote area to detect necessary information. A frequency signal corresponding to the information detected by the communication modem is generated and transmitted to the coupler, and the coupler transmits the frequency signal to the optical fiber composite overhead line. Install an instrument current transformer on the jumper cable adjacent to the coupler connected to the communication modem to supply power to the communication modem. As a result, the frequency signal is transmitted through the optical fiber composite overhead line connected between the plurality of transmission towers and received by the remote management server. The management server analyzes the corresponding information and checks the monitoring information of the transmission tower in a remote place.

Description

System for Monitoring Transmission Tower Using Optical Fiber Composite Overhead Ground Wire as Communication Line and Power Source by Medium of Jumper Cable}

The present invention relates to a transmission tower monitoring system, and more particularly, to a transmission tower monitoring system in which a transmission tower monitoring device is installed in an optical fiber composite overhead line connected between transmission towers to monitor the transmission tower's surroundings.

As is well known, a transmission tower refers to a steel tower built to connect high-voltage transmission lines. High-voltage direct current and alternating current methods are used, and high voltages such as 154kV, 345kV, and 765kV are widely used in Korea.

An overhead ground wire is installed in the transmission tower to protect the transmission line from lightning strikes. This overhead branch line is installed parallel to the power line, and the lightning current is induced from the overhead branch line to the ground via a transmission tower.

Recently, an overhead ground wire is being installed as an optical fiber composite overhead ground wire (OPGW). A general overhead branch line only serves to guide lightning to the ground, but a composite fiber optic overhead line is a cable that not only protects the transmission line from lightning, but also adds optical multiple signal transmission by embedding optical fibers in the overhead branch line.

The optical fiber composite processing branch line is protected with an aluminum alloy material to protect it from mechanical impact applied from the outside, and the optical fiber is coated with a material that can withstand heat to withstand high heat resistance properties.

Since transmission towers are installed outdoors, aging progresses rapidly and damage may occur due to adverse weather conditions such as wind, typhoons, and lightning strikes. However, conventionally, it is difficult to determine whether such aging or damage has occurred.

Publication No. 10-2017-0099246 discloses a technology installed in a transmission tower to collect meteorological and environmental data in a nearby area and determine whether an urgent notification is required.

However, in this prior art document, since weather conditions or environmental data are detected, transmission towers or transmission lines are not directly monitored.

Recently, a technology using drones for monitoring transmission towers has been disclosed, but it is difficult to fly drones in bad weather, and drones are launched as needed or periodically to monitor transmission towers, so the transmission towers are constantly monitored in real time. It's not about doing it.

Meanwhile, in the case of transmission towers installed in mountainous regions, failures due to icing of transmission lines may occur. In order to prevent this, it is necessary to build a device for monitoring icing in real time, but it is difficult to install a monitoring device and build a communication network for it due to the nature of the mountainous area.

In particular, it is difficult to build a wired communication network in a mountainous area, and a wireless communication network has problems in that it is difficult to install, maintain, and repair, has poor security, and has many factors that cause communication failure.

Therefore, in the related technology field, there is a need to monitor the surroundings of the transmission tower in real time and to develop a new type of communication network for this purpose.

Publication No. 10-2017-0099246

The problem to be solved by the present invention is to install a monitoring device on an optical fiber composite overhead line installed between transmission towers and transmit detection information to a remote management server through a coupler via a jumper cable as a medium. It is to provide a transmission tower monitoring system using an overhead branch line as a communication line and a power source.

In addition, another problem to be solved by the present invention is a jumper cable capable of monitoring the periphery of a transmission tower in real time through a power line communication technology using an existing optical fiber composite overhead line without the construction of a new communication line for monitoring the transmission tower. It is to provide a transmission tower monitoring system using an optical fiber composite overhead line as a communication line and a power source through a medium.

In addition, another problem to be solved by the present invention is to install a monitoring device on an optical fiber composite overhead line installed between transmission towers, and through a jumper cable capable of receiving power through an instrument transformer (Current Transformer: CT), an optical fiber as a medium. It is to provide a transmission tower monitoring system using a complex overhead branch line as a communication line and a power source.

In addition, another problem to be solved by the present invention is that construction, maintenance, and repair are easier than conventional wired communication methods, and reliability is higher than wireless communication, and efficiency, flexibility, and stability of communication can be improved. It is to provide a transmission tower monitoring system using an optical fiber composite overhead line as a communication line and a power source through a jumper cable in the present invention.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention provides a transmission tower monitoring system using an optical fiber composite overhead branch line as a communication line and a power source via a jumper cable. This transmission tower monitoring system is installed in each of the first and nth transmission towers among n (n is 3 or more) transmission towers in which a plurality of transmission lines are connected to each other and optical fiber composite overhead lines are connected to each other to obtain first and second characteristic information. first and second detectors respectively detecting , first and n-th power transmission towers, respectively, receiving first and second characteristic information detected by the first and second detectors, respectively; and first and second communication modems generating and outputting frequency signals corresponding to the second characteristic information, respectively, and a plurality of clamps on an optical fiber composite processing branch line connected to one side of each of the first and n-th transmission towers. It is coupled to a jumper cable connected by, transfers the frequency signals output from the first and second communication modems to the optical fiber composite branch line, respectively, and collects and outputs the frequency signals transmitted through the optical fiber composite branch line. First and second couplers, first and second instrument current transformers coupled to the jumper cable to which the first and second couplers are respectively coupled to supply power to the first and second communication modems, respectively, and the second to n-1 th power transmission towers, each coupled to the left and right optical fiber composite overhead transmission towers, and including 2 (n-2) couplers that collect frequency signals transmitted through the optical fiber composite overhead branch lines and transfer them to each other. can

Each of the first and second detectors may include a sensor for detecting physical characteristic information of at least one of wind direction, wind speed, temperature, humidity, and heat.

The first and second detection units may each include a camera that captures an image of the surroundings of the power transmission tower and the optical fiber composite overhead branch line. The camera can take a picture of the shedding state of the sheath of the optical fiber composite overhead line. The camera may be an infrared camera.

Each of the first and second detectors may include a non-destructive inspection sensor for inspecting whether or not the transmission tower is damaged.

Each of the first and second couplers and the two (n-2) couplers may include a core having a magnetic core, a coil wound around the core in a Rogowski coil method, and two connection terminals connected to both ends of the coil. Connection terminals may be respectively connected to the first and second communication modems. The first and second couplers and the 2 (n-2) couplers may have communication directionality for a frequency signal. The first and second couplers and the 2(n-2) couplers may be installed to direct a communication direction of a frequency signal to the most adjacent first and second communication modems.

Each of the first and second instrument current transformers may charge a battery through a charging device using an optical fiber composite branch line as a current source, and supply power to first and second communication modems through a power supply device using the battery as a power source, respectively. can

The transmission tower monitoring system includes a relay unit relaying first and second characteristic information to a remote location, a management server receiving the first and second characteristic information relayed through the relay unit, and a display unit displaying the monitoring information received by the management server. can do.

The management server may analyze the frequency signals corresponding to each of the first and second characteristic information relayed through the relay unit to check the communication state in the optical fiber composite overhead branch line.

Two couplers adjacent to each other coupled to the left and right optical fiber composite overhead lines, respectively, based on the 2nd to n-1th transmission towers may be connected to each other by a coaxial cable. Two couplers adjacent to each other may transmit a frequency signal through a coaxial cable.

As described above, according to the solution to the problem of the present invention, the transmission tower monitoring system supplies power to a communication modem and a detection unit through an instrument current transformer using an optical fiber composite branch line as a current source, thereby constantly monitoring the transmission tower periphery. can be monitored in real time.

In addition, the transmission tower monitoring system can monitor the exact status by directly installing the monitoring device on the transmission tower and transmitting monitoring information through the optical fiber composite overhead line.

In addition, the transmission tower monitoring system can monitor the perimeter of the transmission tower in real time even in bad weather.

In addition, the transmission tower monitoring system can minimize additional costs by using the existing fiber composite overhead line as a communication line and power source without building a new communication line.

In addition, the transmission tower monitoring system is advantageous in construction, maintenance, and repair compared to the existing wired communication method, and has higher reliability than the wireless communication method, thereby improving communication efficiency, flexibility and stability.

1 is a schematic configuration diagram for explaining a transmission tower monitoring system according to an embodiment of the present invention.
2 is a configuration diagram illustrating a detection unit of a transmission tower monitoring system according to an embodiment of the present invention.
3 is a detailed configuration diagram of part A of FIG. 1 to explain some components of a transmission tower monitoring system according to an embodiment of the present invention.
4A and 4B are three-dimensional views illustrating a coupler of a transmission tower monitoring system according to an embodiment of the present invention.
5 is a cross-sectional view illustrating a coupler of a transmission tower monitoring system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in different forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and the spirit of the present invention will be sufficiently conveyed to those skilled in the art, and the present invention is only defined by the scope of the claims.

Like reference numbers designate like elements throughout the specification. Accordingly, the same reference numerals or similar reference numerals may be described with reference to other drawings, even if not mentioned or described in the drawings. Also, even if reference numerals are not indicated, description may be made with reference to other drawings.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, 'comprises' and/or 'comprising' refers to the presence of one or more other elements, steps, operations and/or devices mentioned. or do not rule out additions. In addition, since it is according to a preferred embodiment, reference numerals presented according to the order of description are not necessarily limited to the order.

An element is said to be 'connected to' or 'coupled to' with another element when it is directly connected to or coupled to another element, or another element in the middle. Includes all cases involving On the other hand, when one component is referred to as 'directly connected to' or 'directly coupled to' another component, it indicates that another component is not intervened. 'and/or' includes each and every combination of one or more of the recited items.

The spatially relative terms 'below', 'beneath', 'lower', 'above', 'upper', etc. It can be used to easily describe the relationship between devices or components and other devices or components. Spatially relative terms should be understood as encompassing different orientations of the device in use or operation in addition to the orientations shown in the figures. For example, when a device shown in the drawings is turned over, a device described as 'below' or 'beneath' another device may be placed 'above' the other device. Accordingly, the exemplary term 'below' may include directions of both down and up. The device may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to the orientation.

In addition, the embodiments described in this specification will be described with reference to cross-sectional views and/or plan views, which are ideal exemplary views of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content. Accordingly, the shape of the illustrative drawings may be modified due to manufacturing techniques and/or tolerances. Therefore, embodiments of the present invention are not limited to the specific shapes shown, but also include changes in shapes generated according to manufacturing processes. Accordingly, the regions illustrated in the drawings have schematic properties, and the shapes of the regions illustrated in the drawings are intended to illustrate a specific shape of the region of the device and are not intended to limit the scope of the invention.

On the other hand, the embodiments described in this specification are described with the left as the front, the right as the rear, the top as the top, and the bottom as the bottom.

1 is a schematic configuration diagram for explaining a transmission tower monitoring system according to an embodiment of the present invention, and FIG. 2 is a configuration diagram for explaining a detection unit of the transmission tower monitoring system according to an embodiment of the present invention. 3 is a detailed configuration diagram of part A of FIG. 1 to explain some components of the transmission tower monitoring system according to an embodiment of the present invention.

Referring to FIGS. 1 to 3 , a plurality of transmission lines 10 and a composite fiber optic branch line 20 may be installed between n (where n is a natural number equal to or greater than 3) transmission towers 1 . The transmission line 10 may be single-phase or three-phase, and may be installed to be connected to a plurality of transmission towers 10 to transmit power.

The optical fiber composite overhead line 20 not only serves to protect the transmission tower 1 and various devices and elements connected to the transmission tower 1 from lightning, but also plays a role in optical communication through an optical fiber core provided therein. can also be done.

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The transmission tower monitoring system according to an embodiment of the present invention can be applied to a plurality of transmission towers 1 in which transmission lines 10 and optical fiber composite overhead lines 20 are connected to each other, and transmission tower monitoring according to an embodiment of the present invention The system is exemplified as having n transmission towers (1).

The transmission tower monitoring system may include a first detection unit 120a. The first detector 120a may be installed in a first transmission tower among the n transmission towers 1 to detect first characteristic information.

The first specific information may include physical characteristic values or information about the surrounding environment in the transmission tower 1, the transmission line 10, and the optical fiber composite overhead branch line 20. For example, the first specific information may include wind direction, wind speed, temperature, humidity, heat, image information, and the degree of fine dust.

The transmission tower monitoring system may include a first communication modem 131 . The first communication modem 131 is installed in the first transmission tower, receives the first characteristic information detected by the first detection unit 120a, and generates and outputs a frequency signal corresponding to the received first characteristic information. .

This may be to convert the first characteristic information into a frequency signal corresponding thereto so that the first communication modem 131 can transmit the first characteristic information through the optical fiber composite overhead branch line 20 .

The transmission tower monitoring system may include a first coupler 110-1. The first coupler 110-1 may be coupled to a jumper cable 30 connected to the optical fiber composite overhead line 20 by a plurality of clamps 40. The first coupler 110-1 is coupled to the jumper cable 30 connected by a plurality of clamps 40 to one side of the optical fiber composite overhead line 20 connected to the first transmission tower, and the first communication modem 131 It is possible to transfer the frequency signal transmitted from the jumper cable 30 and the clamp 40 to the optical fiber composite processing branch line 20. These configurations and operations are equally applied to the second coupler 100-n.

The clamp 40 may be a Parallel-Groove (PG) clamp, and the jumper cable 30 may be the same type of wiring as the optical fiber composite overhead line 20.

On the other hand, among the n transmission towers 1 to which an embodiment of the present invention is applied, the transmission towers installed between the first transmission tower and the last transmission tower n-th transmission towers, that is, the left and right transmission towers Two couplers 110-2 may be installed, respectively.

Specifically, in the case of the 2nd to n-1th transmission towers disposed between the 1st transmission tower and the n-th transmission tower, couplers 110-2 are attached to each of the left and right optical fiber composite overhead lines 20 based on each transmission tower. ) is coupled, and these two couplers 110-2 can each collect frequency signals transmitted through the optical fiber composite overhead branch line 20 and transmit them to each other.

The two couplers 110-2 each serve to transfer frequency signals transmitted between the first coupler 110-1 of the first transmission tower and the second coupler 110-n of the n-th transmission tower to be described later. can be done For example, the frequency signal transmitted from the first coupler 110-1 may be received by the coupler 110-2 of the second transmission tower immediately adjacent thereto and transmitted to the coupler of the third transmission tower next to it. Also, the coupler of the third transmission tower may transmit a frequency signal to the coupler of the fourth transmission tower again.

As such, the frequency signal may be continuously transmitted through the couplers 110-2 of the 2nd to n−1th transmission towers and delivered to the second coupler 110-n of the last nth transmission tower.

At this time, a coaxial cable 170 may be provided between the two couplers 110-2 installed on the left and right sides of the optical fiber composite overhead line 20 of the 2nd to n−1th transmission towers, respectively. A frequency signal may be transmitted through the coaxial cable 170 .

Specifically, in the case of the 2nd to n-1th transmission towers, since each transmission tower and the optical fiber composite overhead line 20 are physically connected, the frequency signal is intact through the optical fiber composite overhead branch line 20 at the connected point. cannot be conveyed That is, loss of a frequency signal may occur at that point.

Therefore, between these two couplers 110-2, the frequency signal is transmitted through the optical fiber composite overhead branch line 20 in order to prevent the loss of the frequency signal that occurs when the frequency signal is transmitted through the optical fiber composite overhead branch line 20. Rather than transmitting, the frequency signal is transmitted through the coaxial cable 170 directly connected between the two couplers 110-2.

The transmission tower monitoring system may include a second detection unit 120b. The second detector 120b may be installed in the last n-th transmission tower among the n transmission towers 1 to detect the second characteristic information. The second characteristic information is the same as the first characteristic information, and may include physical characteristic values in the transmission tower 1, the transmission line 10, and the optical fiber composite overhead branch line 20 or information about the surrounding environment. For example, the second characteristic information may include wind direction, wind speed, temperature, humidity, heat, image information, and the degree of fine dust.

2 schematically shows the configuration of the first and second detectors 120a and 120b.

The first and second detection units 120a and 120b respectively detect a wind direction sensor 212 for detecting a wind direction, a wind speed sensor 213 for detecting a wind speed, and a temperature of the optical fiber composite branch line 20 and the surroundings. A temperature sensor 214 for detecting ambient humidity, a humidity sensor 215 for detecting ambient humidity, a heat sensor 216 for detecting heat in the transmission tower 1, transmission line 10, and optical fiber composite processing branch line 20, fine dust It may include a fine dust sensor 218 for detecting the degree of and a control unit 211 for controlling them. The heat sensor 216 may include an infrared sensor that responds to heat generation.

Here, although the first and second detectors 120a and 120b are illustrated as being installed to be connected to the optical fiber composite overhead line 20 of the first transmission tower and the nth transmission tower, respectively, the present invention is not limited thereto. The first and second detectors 120a and 120b of the transmission tower monitoring system according to an embodiment of the present invention are connected to the optical fiber composite overhead line 20 of at least one of the second to n-1th transmission towers. may be installed.

In this case, a communication modem (see 130, 131 or 132) must be installed in the transmission tower 1 where the first and second detectors 120a and 120b are installed. This communication modem can transmit a frequency signal to a coupler (refer to 110, 110-1, 110-2 or 110-n) installed in the optical fiber composite overhead branch line 20 of the transmission tower 1.

On the other hand, the first and second detection units 120a and 120b use a camera 217 capable of taking images of the transmission tower 1, the transmission line 10, the optical fiber composite overhead line 20 and its surroundings. can include more. For example, the camera 217 may capture a surrounding situation as an image in real time, including Closed Circuit TeleVision (CCTV).

On the other hand, the camera 217 may take a picture of the peeling state of the coating of the optical fiber composite processing branch line 20 . The camera 217 may include an infrared camera to take pictures even at night.

In addition, each of the first and second detectors 120a and 120b may further include a non-destructive inspection sensor for inspecting whether or not the transmission tower is damaged.

In addition, each of the first and second detection units 120a and 120b may further include an aviation obstacle light monitoring sensor 220 that monitors a state of an aviation obstacle light installed in the transmission tower.

The transmission tower monitoring system may include a second coupler 120-n. The second coupler 120-n may collect and output frequency signals transmitted through the optical fiber composite overhead branch line 20 connected to the nth transmission tower.

Left and right sides of the first and second couplers 110-1 and 110-n and the optical fiber composite overhead lines 20 of the 2nd to n-1th transmission towers applied to the transmission tower monitoring system according to an embodiment of the present invention The couplers 110-2 installed in each may have a form selected from a contact type or a non-contact type. That is, the first and second couplers 110-1 and 110-n connected to the first and second detection units 120a and 120b applied to the transmission tower monitoring system according to an embodiment of the present invention are jumper cables. Since it is coupled to (30), it may have a contact type, but the couplers 110-2 coupled to the left and right sides of the optical fiber composite processing branch lines 20 of the 2nd to n-1th transmission towers, respectively, are in a non-contact type. It may be desirable to have.

Left and right sides of the first and second couplers 110-1 and 110-n and the optical fiber composite overhead lines 20 of the 2nd to n-1th transmission towers applied to the transmission tower monitoring system according to an embodiment of the present invention Each of the couplers 110-2 installed in may be implemented in a cylindrical shape having a non-contact type and may have a hollow part (see 113 in FIGS. 4B and 5) formed in the longitudinal direction at the center. Accordingly, the optical fiber composite branch line 20 is installed to pass through the hollow portion, so that each of the couplers 110-1, 110-2 or 110-n may be coupled to surround the optical fiber composite branch line 20.

In these couplers 110, 110-1, 110-2 or 110-n, a coil (see 115 in FIG. 5) is wound around a core (114 in FIG. 5) therein, using the principle of electromagnetic induction. The frequency signal may be transmitted to the optical fiber composite overhead branch line 20, and the frequency signal transmitted through the optical fiber composite overhead branch line 20 may be collected by coupling.

The transmission tower monitoring system may include a second communication modem 132 . The second communication modem 132 is installed in the n-th transmission tower and can extract first characteristic information corresponding to the frequency signal output from the second coupler 110-n. In addition, second characteristic information may also be received from the second detector 120b.

Thus, after the second characteristic information detected by the first detector 120a is converted into a frequency signal by the first communication modem 131, the plurality of couplers 110-1, 110-2, and 110-n It is transmitted through and can be finally transmitted to the second communication modem 132 .

The transmission tower monitoring system may include an instrument current transformer (116). The instrument current transformer 116 is coupled to the jumper cable 30 to which the first and second couplers 110-1 and 110-n are respectively coupled to the first and second communication modems 131 and 132, respectively. can supply power. The meter current transformer 116 charges the battery 118 through the charging device 117 using the optical fiber composite overhead branch line 20 as a current source, and uses the battery 118 as a power source to power the power device 119. Through this, power may be supplied to the first and second communication modems 131 and 132, respectively.

Thus, the transmission tower monitoring system according to an embodiment of the present invention is transmitted through the instrument current transformer 116 coupled to the jumper cable 30 connected to the optical fiber composite overhead branch line 20 by a plurality of clamps 40 Power may be supplied to the first and second communication modems 131 and 132 and the first and second detectors 120a and 120b using current. The first and second communication modems 131 and 132 and the first and second detection units 120a and 120b can be continuously operated through the instrument current transformer 116, so that the transmission tower 1 and the optical fiber composite The surroundings of the processing branch line 20 can be monitored in real time.

The transmission tower monitoring system may include a relay unit 140 . As described above, the second communication modem 132 may transfer the first and second characteristic information received from the first and second detection units 120a and 120b to the relay unit 140 .

The relay unit 140 may serve to collect first and second characteristic information and deliver them to the remote management server 150 . The relay unit 140 may be implemented as a hub device or a gateway.

The management server 150 may receive the first and second characteristic information relayed through the relay unit 140 and display them on the display unit 160 .

In addition, the management server 150 may analyze the frequency signals respectively corresponding to the first and second characteristic information received through the relay unit 140 to check the communication state in the optical fiber composite overhead branch line 20 .

That is, a frequency signal output from the coupler 110 may change according to a communication state in the optical fiber composite overhead branch line 20 . Accordingly, the management server 150 may analyze the communication state through the optical fiber composite overhead branch line 20 by extracting and analyzing frequency signals respectively corresponding to the received first and second characteristic information. The management server 150 may be equipped with an analysis program for such analysis.

In particular, the management server 150 may pre-store a frequency signal corresponding to a normal communication state and a communication state when an abnormality occurs, and check the communication state corresponding to the frequency signal received through the coupler 110 .

As described above, the transmission tower monitoring system according to an embodiment of the present invention includes the detection unit 120 installed on the plurality of transmission towers 1 within the range of the area to be monitored, and the characteristic information detected by the detection unit 120. The communication modem 131 or 132 may convert it into a frequency signal. In addition, the frequency signal from the communication modem 131 or 132 is transmitted through a plurality of couplers 110 installed on the jumper cable 30 connected to the fiber optic composite overhead line 20 by a plurality of clamps 40 to transmit the optical fiber composite A frequency signal may be transmitted through the overhead branch line 20 . Finally, when characteristic information is received from the communication modem 131 or 132, it may be transmitted to the management server 150 through the relay unit 140.

Accordingly, it is possible to check the characteristic information of each of the transmission towers 1 in real time from the remote management server 150 .

Information may be transmitted and received between the relay unit 140 and the management server 150 through wired communication as well as wireless communication. An efficient communication method can be selectively used according to the environment in which the transmission towers 1 are installed.

4A and 4B are three-dimensional views illustrating a coupler of a transmission tower monitoring system according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view illustrating a coupler of a transmission tower monitoring system according to an embodiment of the present invention. .

Referring to FIGS. 4A to 5 , the coupler (see 110 in FIGS. 1 and 3 ) may have a non-contact type. The coupler may include a first housing 111 and a second housing 112 . As shown in FIG. 4A , the first and second housings 111 and 112 are implemented in a semi-cylindrical shape, and may have the same shape as each other.

In order to couple the coupler to the optical fiber composite overhead line (see 20 in FIGS. 1 and 3), the first housing 111 and the second housing 112 may be coupled to each other. As shown in FIG. 4B , the coupler may be one in which the first housing 111 and the second housing 112 are coupled so as to have a hollow part 113 formed in the longitudinal direction at the central portion.

In this way, when the first housing 111 and the second housing 112 are coupled, the coupler may be implemented in a cylindrical shape so that the hollow part 113 formed in the longitudinal direction at the central portion surrounds the optical fiber composite processing branch line. When the first housing 111 and the second housing 112 are coupled to each other to form a cylindrical shape, the core 114 inside the first and second housings 111 and 112 may also have a cylindrical shape.

The coupler of the transmission tower monitoring system according to an embodiment of the present invention includes a core 114 having a magnetic core inside the first and second housings 111 and 112, and a Rogowskii coil in the core 114. It may include a wound coil 115 and two connection terminals connected to both ends of the coil 115 . The connection terminals may be connected to a communication modem (see 130 in FIG. 3). Accordingly, the coupler may have a communication directionality for a frequency signal. As clearly shown in FIG. 5, in the Rogowski-type coil, the coil is wound around the core, and after being wound around the core multiple times, it is disposed once along the circumference of the core.

The coupler may be installed so that the communication direction of the frequency signal is directed to the nearest communication modem. That is, the coupler may transfer characteristic information to a remote management server (see 150 in FIG. 1 ) by transferring a frequency signal to the nearest communication modem through an optical fiber composite overhead branch line.

A power transmission tower monitoring system using a fiber optic composite branch line as a communication line and a power source via a jumper cable according to an embodiment of the present invention connects a coupler to the fiber optic composite branch line, and an instrument current transformer coupled to the fiber optic composite branch line By supplying power to the communication modem and the detection unit using the current transmitted through the communication modem and the detection unit, it is possible to operate the communication modem and the detection unit at all times. Accordingly, a transmission tower monitoring system capable of monitoring the surroundings of the transmission tower and the optical fiber composite overhead line in real time can be provided.

In addition, the transmission tower monitoring system using the optical fiber composite overhead line as a communication line and power source through the jumper cable according to an embodiment of the present invention connects the coupler and the instrument current transformer to the optical fiber composite overhead line via the jumper cable, Installation and replacement of monitoring devices can be facilitated. Accordingly, a transmission tower monitoring system advantageous for the construction, maintenance, and repair of a monitoring device capable of monitoring the surroundings of a transmission tower and an optical fiber composite overhead line in real time can be provided.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art can implement the present invention in other specific forms without changing its technical spirit or essential features. You will understand that there is Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1 : transmission tower
10: transmission line
20: optical fiber composite processing branch line
30: jumper cable
40: clamp
110, 110-1, 110-2, 110-n: Coupler
111, 112: housing
113: hollow part
114: core
115: coil
116: instrument current transformer
117: charging device
118: battery
119: power unit
120, 120a, 120b: detection unit
130, 131, 132: communication modem
140: relay unit
150: management server
160: display unit
211: control unit
212: wind direction sensor
213: wind speed sensor
214: temperature sensor
215: humidity sensor
216: fever sensor
217: camera
218: fine dust sensor
219: non-destructive testing sensor
220: Aviation obstruction light monitoring sensor

Claims (9)

In the monitoring system of n (n≥3, natural number) transmission towers to which transmission lines and optical fiber composite overhead lines are connected,
a first detection unit installed in a first transmission tower among the n transmission towers and detecting first characteristic information of an optical fiber composite overhead branch line connected to the first transmission tower;
a first communication modem installed in the first transmission tower, receiving the first characteristic information detected by the first detection unit, and generating and outputting a frequency signal corresponding to the first characteristic information;
a first jumper cable connected to the optical fiber composite processing branch line connected to the first transmission tower by a plurality of first clamps;
a first coupler coupled to the first jumper cable and transferring a frequency signal transmitted from the first communication modem to the first jumper cable;
Based on the 2nd to n-1th transmission towers, they are coupled in a non-contact manner to the left and right optical fiber composite processing branch lines, respectively, and collect frequency signals transmitted through the optical fiber composite processing branch lines, respectively, and transmit them to each other 2 (n-2) dog coupler;
a second detection unit installed in the n-th transmission tower and detecting second characteristic information about an optical fiber composite overhead branch line connected to the n-th transmission tower;
a second jumper cable connected to the optical fiber composite processing branch line connected to the n-th transmission tower by a plurality of second clamps;
a second coupler coupled to the second jumper cable and collecting and outputting frequency signals transmitted through the optical fiber composite processing branch line, the second clamp, and the second jumper cable;
a second communication modem installed in the n-th transmission tower and extracting first characteristic information corresponding to a frequency signal output from the second coupler;
a relay unit relaying the first and second characteristic information to a remote location;
a management server that receives first and second characteristic information relayed through the relay unit; and
And a display unit for displaying monitoring information received from the management server,
The first coupler and the second coupler are respectively a power supply device supplying power to the first and second modems, a battery supplying power to the power supply device, a charging device supplying power to the battery, and the first jumper. It is coupled to the cable and the second jumper cable and includes an instrument current transformer for charging the battery through the charging device using the optical fiber composite processing branch line as a current source,
The frequency signal transmitted from the first coupler to the first jumper cable is transmitted from the first jumper cable to the optical fiber composite processing branch line through the first clamp, and the frequency signal transmitted to the optical fiber composite processing branch line is transmitted to the optical fiber composite processing branch line. It is transmitted from the complex processing branch line to the second jumper cable through the second clamp,
The left and right optical fiber composite processing branch lines of the 2nd to n-1th transmission towers are physically connected to each transmission tower, and the two couplers respectively installed on the left and right optical fiber composite processing branch lines are connected to each other with a coaxial cable. And, a frequency signal is transmitted between the two couplers through the coaxial cable,
The first detection unit and the second detection unit each include a sensor for detecting physical characteristic information of at least one of wind direction, wind speed, temperature, humidity, or heat, a non-destructive inspection sensor for inspecting whether or not the transmission tower is damaged, and the optical fiber composite processing branch line. Including at least one of the cameras for photographing the falling off state of the coating,
Each of the first coupler, the second coupler and the 2 (n-2) couplers,
a core with magnetic core;
a coil wound around the core in multiple circuits; and
Including two connection terminals connected to both ends of the coil,
The connection terminals are respectively connected to the first and second communication modems,
The coil is wound on the core in a Rogowskii coil method, wound on the core multiple times and then disposed once along the circumference of the core,
The first coupler, the second coupler, and the 2 (n-2) couplers each have a communication direction of the frequency signal, and direct the communication direction of the frequency signal to the first communication modem and the second communication modem closest to each other. transmission tower monitoring system installed to delete delete delete delete delete delete According to claim 1,
The management server analyzes the frequency signals corresponding to each of the first and second characteristic information relayed through the relay unit to check a communication state in the optical fiber composite overhead line. delete

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