KR100991363B1 - Cable damage detecting system and method of grounding cable damage detecting using the same of - Google Patents

Abstract

Provided are a cable damage detection system and a cable damage detection method using the same. The damage detection system of the cable according to the embodiments of the present invention warns whether the cable is damaged in response to a sensor that detects whether the cable is damaged, a detection signal generator that generates a detection signal according to a detection result of the sensor, and a detection signal. It includes a warning unit.

Grounding cable, sensor

Description

Cable damage detecting system and method of grounding cable damage detecting using the same of}

The present invention relates to a cable damage detection system and a cable damage detection method using the same, and more particularly, to a cable damage detection system using a sensor and a cable damage detection method using the same.

Cables are used for various purposes, such as power cables that carry power, signal cables that carry electrical or optical signals, or ground cables. In particular, the ground cable is disposed in a high structure such as a communication tower in which a communication antenna is disposed in a base station, a relay station, or the like that provides a wireless network communication service, or a transmission tower that transmits electric power, thereby protecting the structure from lightning.

Since the grounding cable is mainly disposed in a communication tower or transmission tower located outdoors, where the ground cable is damaged due to natural abrasion or natural disaster, or by thieves artificially cutting the grounding cable for the purpose of theft, the grounding cable is detected. Not easy to do In addition, if the ground cable is not detected as being damaged or not and is left in a damaged state, structures such as communication towers or transmission towers may not be properly protected and damaged from lightning.

The problem to be solved by the present invention is to provide a damage detection system of the cable to effectively detect whether the cable is damaged, in particular whether the line is broken.

Another problem to be solved by the present invention is to provide a damage detection method of a cable that effectively detects whether a cable is damaged, in particular, whether a cable is broken.

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

In order to solve the above problems, a cable damage detection system according to embodiments of the present invention includes a sensor for detecting whether a cable is damaged, a detection signal generator for generating a detection signal according to a detection result of the sensor, and a response signal; It includes a warning to warn of damage to the cable.

In another aspect of the present invention, a method of detecting damage to a cable according to embodiments of the present disclosure provides a detection signal by detecting whether the cable is damaged, and in response to the detection signal, warns whether the cable is damaged around the structure. It includes a step.

Other specific details of the invention are included in the detailed description and drawings.

The damage detection system of the cable as described above and the damage detection method of the cable using the same may be detected by the sensor disposed on the cable to detect whether the damage of the cable. In addition, it is possible to detect whether the cable is damaged in real time through a remote control disposed far from the cable.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout. Like reference numerals refer to like elements throughout. “And / or” includes each and all combinations of one or more of the items mentioned.

Although the first, second, etc. are used to describe various elements, components and / or sections, these elements, components and / or sections are of course not limited by these terms. These terms are only used to distinguish one element, component or section from another element, component or section. Therefore, the first device, the first component, or the first section mentioned below may be a second device, a second component, or a second section within the technical spirit of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, “comprises” and / or “comprising” refers to the presence of one or more other components, steps, operations and / or elements. Or does not exclude additions.

The cable according to embodiments of the present invention may be a power cable for transmitting power, a signal cable or a ground cable for transmitting an electrical signal or an optical signal, or the like. Among them, the ground cable may be disposed in a high structure such as a communication tower in which a communication antenna is disposed in a base station, a relay station, or the like that provides a wireless network communication service, or a transmission tower that transmits electric power, thereby protecting the structure from lightning.

Hereinafter, embodiments of the present invention will be described using a grounding cable, in particular, a grounding cable disposed in a communication tower unless otherwise specified. However, the present invention is not limited thereto, and it is apparent to those skilled in the art that the present invention can be applied to all the various cables mentioned above.

1 is a view illustrating a damage detection system of a ground cable according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an example sensor of FIG. 1.

Referring to Figure 1, the ground cable damage detection system according to an embodiment of the present invention is a ground cable 110, a sensor 150, a detection signal generator 200, a warning unit 300 and a remote control unit 400 ).

The ground cable 110 is disposed in the communication tower 10 in which a communication antenna is disposed in a base station and a relay station providing a wireless network communication service, and serves to protect a communication antenna, a base station, a relay station, and the like from lightning. The ground cable 110 may include, for example, a conductor such as copper and an insulator such as polyvinyl chloride (PVC) or polyurethane surrounding the conductor.

The sensor 150 detects whether the ground cable 110 is damaged, preferably whether the ground cable 110 is disconnected, and provides a detection result to the sensing signal generator 200. Here, the damage of the grounding cable 110 may be caused by natural or artificial causes, and in particular, the artificial damage of the grounding cable 110 may be, for example, cut off by a thief for the purpose of theft of a conductor included in the grounding cable 110. Can be. Hereinafter, for convenience of description, a case in which the ground cable 110 is disconnected as the ground cable 110 is damaged will be described as an example.

1 and 2, the sensor 150 detects whether the ground cable 110 is disconnected by a change in an electrical signal, and includes a sensor cable 151 and an impedance unit 155. Although one sensor 150 is disposed in the ground cable 110 in the drawing, the present invention is not limited thereto. In another embodiment, the plurality of sensors 150 may be disposed along the circumferential direction of the ground cable 110. ) May be arranged.

The sensor cable 151 is disposed along the ground cable 110 and includes a first sensor cable 151a and a second sensor cable 151b. The first sensor cable 151a may be connected to the input terminal 150a of the sensor 150, and the second sensor cable 151b may be connected to the output terminal 150b of the sensor 150.

The sensor cable 151 is disposed outside the ground cable 110, preferably outside the conductor of the ground cable 110, so that the ground cable 110 can be wired first or together before the wire is disconnected. Although the sensor cable 151 is illustrated as being separated from the ground cable 110 and disposed outside the ground cable 110 in the drawing, the present invention is not limited thereto. In another embodiment of the present invention, the sensor cable 151 is a ground cable. It may be inserted into the insulator of the 110 and formed integrally with the ground cable 110.

The impedance unit 155 is connected to one end of the first sensor cable 151a and the second sensor cable 151b and is disposed outside the ground cable 110. The impedance unit 155 may include a resistor, a capacitor, or a coil to provide impedance to the sensor cable 151. In detail, the impedance unit 155 may include a resistor when a DC voltage is provided to the sensor 150, and may include a resistor, a capacitor, and / or a coil when an AC voltage is provided to the sensor 150. Can be.

Hereinafter, an exemplary operation of detecting whether a sensor is damaged by a ground cable according to an embodiment of the present invention will be described with reference to FIGS. 3A to 4B.

3A to 4B are diagrams illustrating an exemplary operation of detecting whether the exemplary sensor of FIG. 2 is damaged by the ground cable. In detail, FIGS. 3A and 3B are diagrams for describing an operation of detecting whether the ground cable is damaged or not, when the first and second sensor cables are wired together with the ground cable. 4A and 4B also detect whether or not the ground cable is damaged when the first and second sensor cables are disconnected together with the ground cable, and then the first and second sensor cables are connected again. It is a figure explaining the operation | movement.

First, referring to FIGS. 3A and 3B, when the first and second sensor cables 151a and 151b are wired together with the ground cable 110, the first sensor cable (which is connected through the impedance unit 155) ( 151a and the second sensor cable 151b are opened to each other. In this case, since the input terminal 150a and the output terminal 150b of the sensor 150 are not connected to each other, the voltage Vout of the output terminal 150b of the sensor 150 is interposed between the first and second terminals 155 through the impedance unit 155. It may be lower than when the sensor cables 151a and 151b are connected.

Similarly, referring to FIGS. 4A and 4B, after the first and second sensor cables 151a and 151b are cut off together with the ground cable 110, the first and second sensor cables 151a are cut off again. , 151b is connected, the first sensor cable 151a and the second sensor cable 151b connected through the impedance unit 155 are shorted to each other. In this case, the input terminal 150a and the output terminal 150b of the sensor 150 are connected to one node, so that the voltage Vout of the output terminal 150b of the sensor 150 is interposed through the impedance unit 155. It may be higher than when the first and second sensor cables 151a and 151b are connected.

As a result, in the damage detection system of the ground cable according to the exemplary embodiment of the present invention, the sensor 150 may effectively detect the case where the ground cable 110 is disconnected by a thief. Furthermore, after the thief cuts the ground cable 110, the first and second sensor cables 151a and 151b may be disconnected to avoid a warning sound generated from the warning unit 300 disposed adjacent to the ground cable 110. Even if it is connected again, whether the ground cable 110 is disconnected may be detected.

In addition, although not shown in the drawings, in another embodiment of the present invention, the sensor may optionally include an impedance unit. Specifically, the input terminal and the output terminal of the sensor are connected to each other by one sensor cable, and when the ground cable is disconnected, it is possible to detect whether the ground cable is disconnected by connecting the input terminal and the output terminal.

5 is a block diagram illustrating a sensing signal generator of FIG. 1.

1, 3B, 4B, and 5, the detection signal generator 200 may provide a detection signal DS according to a detection result of the sensor 150, and may include a signal detection unit 210 and a signal processing unit ( 230 and a reset unit 250. The sensing signal generator 200 is disposed adjacent to the ground cable 110, that is, adjacent to the communication tower 10. For example, the sensing signal generator 200 may be disposed in a misc rack adjacent to a communication tower 10 of a base station and a relay station providing a wireless network communication service.

The signal detector 210 detects a change in the electrical signal of the sensor 150 depending on whether the ground cable 110 is damaged or not. The signal detector 210 may be configured of, for example, an electronic device such as an amplifier or a comparator to detect a change in an electrical signal of the sensor 150. Specifically, the signal detector 210 detects the voltage Vout of the output terminal 150b of the sensor 150 when the first and second sensor cables 151a and 151b are open or shorted, and this is the impedance unit 155. ) And detect a change in the electrical signal of the sensor 150 in comparison with the voltage Vout or the reference voltage of the output terminal 150b of the sensor when the first and second sensor cables 151a and 151b are connected. have.

The signal processor 230 may provide the enabled detection signal DS to the warning unit 300 and the remote controller 400 according to the change of the electrical signal detected by the signal detector 210. In addition, the signal processor 230 may provide the disabled detection signal DS to the warning unit 300 in response to the reset signal RS from the reset unit 250 or the remote control unit 400. As a result, the warning unit 300 may deactivate the warning unit 300 to stop the warning operation.

Although not shown in the drawing, the detection signal generator 200 may provide a signal processing unit to provide the detection signal DS enabled to the warning unit 300 or the remote control unit 400 regardless of the detection result of the sensor 150. The test unit may provide a test signal to the 230.

The warning unit 300 is disposed adjacent to the ground cable 110, for example, the communication tower 10. The warning unit 300 may warn whether the ground cable 110 is damaged or not, in response to the detection signal DS provided from the signal processor 230, and the warning sound generator 310 and / or the warning lamp 330. ). In detail, the warning unit 300 determines whether the ground cable 110 is disconnected by the enabled detection signal DS, and the sound and / or light provided by the warning sound generator 310 and / or the warning lamp 330. Can warn people around the ground cable 110. In addition, the warning unit 300 may stop the warning by the disabled detection signal.

In another embodiment of the present invention, a ground cable damage detection system converts an enabled detection signal provided to a warning sound generator and / or a warning light into a disabled detection signal after a predetermined time. It may further include a timer to. As a result, the warning unit may perform a warning by sound and / or light in the warning unit only for a predetermined time after the ground cable is disconnected. The timer may be disposed in the sensing signal generator or the warning unit.

The remote control unit 400 receives the detection signal DS from the detection signal generator 200 and serves to remotely control the detection signal generator 200. In more detail, the remote control unit 400 may be connected to the sensing signal generator 200 by wire or wirelessly, preferably wirelessly, and receive the sensing signal from the sensing signal generator 200. In addition, the remote controller 400 may remotely control the detection signal generator 200 by providing a reset signal RS to the detection signal generator 200 by wire or wirelessly, preferably wirelessly. Here, the remote control unit 400 may be disposed away from the communication tower 10 in which the ground cable 110 is disposed, such as a base station management (BSM) or a repeater management system.

Accordingly, the damage detection system of the grounding cable according to an embodiment of the present invention, even if there is no person in the vicinity of the communication tower 10, the grounding cable 110 through the remote control 400 in a remote place from the communication tower 10 Can detect in real time whether the line is disconnected. In addition, the sensing signal generator 230 may be remotely controlled through the remote controller 400 even in a place far from the communication tower 10.

Next, the damage detection system of the grounding cable according to another embodiment of the present invention will be described with reference to FIG. 6.

6 is a view illustrating a damage detection system of a ground cable according to another embodiment of the present invention. 1 through 5, the same reference numerals are used for the same elements, and detailed descriptions of the corresponding elements will be omitted.

Referring to FIG. 6, the embodiment of FIG. 6 differs from the embodiment of FIG. 1 in that it further includes a surveillance camera.

The surveillance camera 500 is disposed adjacent to the ground cable 110 together with the warning unit 300, and the ground cable in response to the detection signal DS provided by the signal processing unit 230 of the detection signal generator 200. It serves to monitor 110. In detail, the monitoring camera 500 may be inactive when the detection signal DS is provided by the signal processor 230 and is activated in the usual time to monitor the ground cable 110.

As a result, when the grounding cable 110 is disconnected, the monitoring camera 500 may be selectively activated to monitor the site where the grounding cable 110 is disconnected. Deterioration of the cable 110 can be detected. For example, when a thief or the like cuts through the ground cable 110, since the surveillance camera 500 may be selectively activated to monitor a theft site, a warning and monitoring of the thief may be more effective.

In another embodiment of the present invention, the sensor of the ground cable damage detection system may include various types of sensors capable of detecting whether the ground cable is damaged, such as a thermal sensor and an infrared sensor. These sensors may also be used in combination with the sensors described with reference to FIG. 2 in the tamper detection system of the ground cable.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

1 is a view illustrating a damage detection system of a ground cable according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example sensor of FIG. 1.

3A to 4B are diagrams illustrating an exemplary operation of detecting whether the exemplary sensor of FIG. 2 is damaged by the ground cable.

5 is a block diagram illustrating a sensing signal generator of FIG. 1.

6 is a view illustrating a damage detection system of a ground cable according to another embodiment of the present invention.

(Explanation of symbols for the main parts of the drawing)

10: communication tower 110: grounding cable

150: sensor 151: sensor cable

155: impedance unit 200: detection signal generation unit

210: signal detector 230: signal processor

250: reset unit 300: warning unit

400: remote control unit 500: surveillance camera

Claims (17)

A sensor for detecting whether the cable is damaged by using a change in an electrical signal of a sensor cable inserted into an insulator of a cable; A detection signal generator for generating a detection signal according to a detection result of the sensor; A warning unit that warns whether the cable is damaged in response to the detection signal; And And a remote controller for receiving the sensing signal wirelessly and providing a reset signal for deactivating the warning wirelessly based on the provided sensing signal. delete The method of claim 1, The remote control unit is a cable damage detection system for wirelessly controlling the detection signal generator. The method of claim 1, The sensor is disposed along the cable, the damage detection system of the cable for detecting whether the cable is damaged by the change of the electrical signal. The method of claim 4, wherein And the sensor comprises a sensor cable disposed along the cable and an impedance portion connected to one end of the sensor cable. The method of claim 1, And a timer for activating the warning unit only for a predetermined time in response to the detection signal. The method of claim 1, And a surveillance camera for monitoring the cable in response to the detection signal. The method of claim 1, The cable is a ground cable disposed in the structure, The detection signal generation unit and the warning unit damage detection system of the cable disposed adjacent to the structure. The method of claim 8, The structure is a damage detection system of the cable communication tower or transmission tower. Providing a detection signal by detecting whether the cable is damaged by using a change in an electrical signal of a sensor cable inserted into an insulator of a cable; In response to the sensing signal, warning whether the cable is damaged around the structure; And Receiving the sensing signal wirelessly and providing a reset signal to deactivate the alerting wirelessly based on the provided sensing signal. delete delete The method of claim 10, The cable is a ground cable, The detecting of the damage of the cable may include detecting an electrical change according to whether the cable is damaged by a sensor disposed along the ground cable. The method of claim 10, The warning step of detecting the damage of the cable to provide a sound and / or light in response to the detection signal. The method of claim 10, The warning step of detecting the damage of the cable in response to the detection signal, for a predetermined time only warning. The method of claim 10, And in response to the sensing signal, monitoring the ground cable in the surveillance camera. The method of claim 10, The cable is a grounding cable disposed in the structure, the structure is a communication tower or transmission tower of the damage detection method of the cable.

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