KR20190063628A - Power line energy harvester - Google Patents

Abstract

According to the present invention, the present invention provides a power line energy harvester comprising: a belt unit configured to be attachable to a power line, and having a coil, which is configured to induce an induced current from electromagnetic energy formed around the power line, arranged therein; and a circuit substrate arranged in a part of the belt unit and configured to generate electrical energy from the induced current. Therefore, the present invention can provide an apparatus for supplying power to a sensor for detecting a state of the power line having various forms in a belt form.

Description

Power line energy harvester {POWER LINE ENERGY HARVESTER}

The present invention relates to a power line energy harvester. And more particularly, to an energy collecting apparatus attached to a power line and using an induced current according to a magnetic flux from a power line.

It is necessary to construct a sensor network in order to detect a power anomaly state on a power line supplying electric power. In this regard, a power supply is required for the sensor network to detect such anomalous conditions. However, the separate power supply for the sensor network not only increases power consumption but also has the problem of generating interference or abnormality in the power system.

In order to solve this problem, when a battery is used as a method of using stored energy rather than a separate power supply, it is necessary to replace the battery and require a lot of cost and manpower to replace the battery of the sensor node scattered in a wide area There is a problem. In addition, waste batteries discarded after replacement are used as a cause of environmental pollution, which causes a problem of cost increase due to battery collection and management.

In this environment, energy harvesting technology is a field of interest. However, in the various power systems, the current power lines have various shapes, and the diameter of the power lines is implemented in various sizes. Accordingly, there is a problem in that there is no specific method of how to apply an energy harvesting device for a sensor network to various types of power lines for detecting the state of a power line.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an apparatus for supplying power to a sensor for detecting a state of a power line having various forms.

Another object of the present invention is to provide a power line energy harvester device that can be attached to power lines having various shapes.

A power line energy harvester according to the present invention includes a belt portion configured to be attached to a power line and having a coil arranged to induce an induced current from electromagnetic energy formed around the power line; And an apparatus for supplying power to a sensor for detecting a state of a power line having various shapes in a belt form, comprising a circuit board arranged in a part of the belt part and configured to generate electric energy from the induced current can do.

According to an embodiment, a clamp mechanism may be further provided for fixing the belt portion at both ends of the belt portion.

According to one embodiment, the circuit board may be mounted in the belt portion of a permalloy material or in the clamp mechanism portion in the form of a flexible printed circuit board. At this time, the clamp mechanism unit includes: an external mechanism configured to variably fasten the belt unit to the diameter of the power line; And an internal mechanism configured in a stepped shape and connected to the external mechanism through the stepped protruding area. Meanwhile, the circuit board may be disposed on the step-like seating area.

According to one embodiment, the belt portion and the clamp mechanism portion may be fixed with an inner clip formed at one end of the outer mechanism and an inner clip fixing method through a groove formed in the protruding region corresponding to the inner clip.

According to one embodiment, the belt portion and the clamp mechanism portion may be fixed with an outer clip formed at one end of the outer mechanism and an outer clip fixing method through a groove formed in the protrusion region in correspondence with the outer clip.

According to an embodiment, the belt portion and the clamp mechanism portion may have a first hole of a first radius formed in a specific region of the external mechanism and a second hole of a second radius formed in the protruding region corresponding to the first hole. And can be fixed in a bolt fixing manner fixed with a bolt through a second hole.

According to one embodiment, the fastening of the clamp mechanism portion can be fastened through the fastening portions on both sides.

According to one embodiment, the fastening of the clamp mechanism part may be coupled through the fastening part at one side, and the internal mechanism and the external mechanism may be connected at the other side in the form of a hinge.

According to one embodiment, the circuit board includes: a rectifier for converting an AC voltage corresponding to the generated electric energy to a DC voltage; A circuit for storing a DC voltage converted from the rectifier; And a voltage regulator for converting the stored direct current (DC) voltage into a voltage of a specific value in order to transmit the stored direct current (DC) voltage to a monitoring control unit (MCU).

According to one embodiment, the circuit board may further comprise a current sensor for receiving the converted voltage from the voltage regulator and for measuring the current of the power line. At this time, the current sensor may transmit the first signal to the controller if the measured current corresponds to a reporting state or an abnormal state. The circuit board includes a temperature sensor for receiving the converted voltage from the voltage regulator, measuring the temperature of the power line, and transmitting a second signal to the control unit when the measured temperature is in a reporting state or an abnormal state, As shown in FIG. The circuit board receives the converted voltage from the voltage regulator, detects the power line and a specific gas around the power line, and when the amount of the detected gas corresponds to the reporting state or the abnormal state, And a gas sensor for transmitting a signal.

According to one embodiment, the circuit board is connected to the voltage regulator, the current sensor, the temperature sensor, and the gas sensor, and receives the converted voltage from the voltage regulator and outputs the voltage to the current sensor, A sensor and a control unit for supplying the gas sensor and generating a different message according to the type of the signal received from the current sensor, the temperature sensor, and the gas sensor, and the position where the belt unit is disposed on the power line; And an RF transceiver for transmitting the different messages generated from the controller to a receiver using a radio frequency (RF) signal.

According to one embodiment, the different message comprises a module identifier (ID) and a measurement value following the module identifier (ID), the module identifier (ID) is an ID for distinguishing a plurality of belts , The measured value may be current, temperature, and gas measurement values received from either the current sensor, the temperature sensor, and the gas sensor. If the measured value is a value measured from the gas sensor, the information about the gas measurement value and the type of the specific gas may be included. If the measured value is a value measured from the gas sensor, And different signals are transmitted from the receiver to the receiver.

Accordingly, a power line energy harvester device according to at least one embodiment of the present invention can provide an apparatus for supplying power to a sensor for detecting the state of a power line having various forms in the form of a belt.

In addition, the power line energy harvester device according to at least one embodiment of the present invention can provide an energy harvester device of a shape that can be attached to a power line through a mechanism structure for fixing the belt part in a belt-like structure.

1 shows a structure of a power line energy harvester of a belt structure according to the present invention.
2 shows a fastening structure of a power line energy harvester of a belt structure, according to another embodiment of the present invention.
3 illustrates a fastening structure for fixing an external clip and a permalloy belt fixing method according to an embodiment of the present invention.
FIG. 4 shows an inner clip fixing type fastening structure and a permalloy belt fixing type according to another embodiment of the present invention.
FIG. 5 shows a fastening structure of an inner clip fixing type and a permalloy belt fixing type according to another embodiment of the present invention.
6 shows a detailed structure of functional blocks of a circuit board according to the present invention.
FIG. 7 shows a detailed structure of functional blocks of an RF, an MCU, and a sensor according to an exemplary embodiment of the present invention.
Figure 8 illustrates the shape of a test sample with a plurality of power line energy harvesters attached to specific locations of the power line, in accordance with one embodiment of the present invention.
FIG. 9 shows a communication test result of the temperature sensor according to an embodiment of the present invention.
10 shows a concept of wireless communication with a power line adaptive energy harvester according to the present invention.
Figure 11 shows a conceptual flow chart related to energy harvesting and sensor data acquisition and transmission in accordance with the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It will be possible. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Like reference numerals are used for similar elements in describing each drawing.

The terms first, second, etc. 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 a second component, and similarly, the second component may also be referred to as a first component. The term "and / or" includes any combination of a plurality of related listed items or any of a plurality of related listed items.

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

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted as ideal or overly formal in meaning unless explicitly defined in the present application Should not.

The suffix "module "," block ", and "part" for components used in the following description are given or mixed in consideration of ease of specification only and do not have their own distinct meanings or roles .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Hereinafter, a power line energy harvester according to the present invention will be described. In this regard, Fig. 1 shows the structure of a power line energy harvester of the belt structure according to the present invention. Referring to FIG. 1, a power line energy harvester 1000 includes a belt section 100, and a circuit board 200. The power line energy harvester 1000 may further include a clamp mechanism unit 300.

The belt portion 100 is configured to be attachable on a power line, and is configured so that a coil configured to induce an induced current from the electromagnetic energy formed around the power line is disposed. In this regard, the belt portion 100 may be constructed of a permalloy material, and may comprise a coil and a protective material. At this time, the protective material may be made of a material such as rubber. On the other hand, permalloy is an excellent magnetic material having an extremely high magnetic permeability and a small loss of magnetic hysteresis due to an alloy of about 80% nickel and 20% iron. Therefore, the permalloy material is a metal that is indispensable as a material of the magnetic core of a communication device. In the present invention, a coil or the like as a metal material can be realized as a permalloy material.

The circuit board 200 may be embodied in the form of a flexible substrate in the belt part 100 or in the clamp mechanism part 300, as shown in Fig. Thus, the circuit board 200 is arranged in a part of the region of the belt part 100, and is configured to generate electrical energy from the induced current. On the other hand, the circuit board 200 may be mounted in the clamp mechanism 300 in the form of a flexible printed circuit board.

The power line energy harvester 1000 according to the present invention can be attached to a power line without using the clamp mechanism unit 300 only with the belt unit 100 and the circuit board 200. At this time, the belt part 100 may be disposed only in a part of the power line, not in the entire area. In this way, when the belt part 100 is disposed only in a partial area, the power line energy harvester 1000 can be configured without the clamp mechanism part 300. [

On the other hand, when the clamp mechanism unit 300 is used, it is easier to fix the power line energy harvester 1000 to the power line. Hereinafter, the clamp mechanism unit 300 will be described in detail.

In this regard, the clamp mechanism unit 300 may provide various types of fastening structures and permalloy belt fastening schemes as follows to protect the circuit board 200 from the outside and fasten the belt unit 100 to the power line . In this regard, the fastening of the clamp mechanism part 300 for fixing the belt part 100 at both ends of the belt part 100 can be fastened through the fastening part 400. At this time, the fastening part 400 is provided on both sides of the two clamping mechanism parts to be fastened, so that the clamping mechanism part 300 can be fastened through the fastening part 400.

Meanwhile, according to another embodiment of the present invention, the fastening part 400 for fastening the clamp mechanism part 300 may be provided on one side only. In this regard, Fig. 2 shows a fastening structure of a power line energy harvester of a belt structure, according to another embodiment of the present invention. 2, a coupling part 400 is provided on one side of the clamp mechanism part 300 and a second coupling part 450 having another coupling type is provided on the other side of the clamp mechanism part 300 . For example, the second fastening part 450 may have a fastening structure in the form of a hinge. The diameter of the belt part 100 can be more easily adjusted through the second fastening part 450 having the hinge shape different from the fastening part 400 together with the fastening part 400. [

With respect to the fastening method through the fastening part 400, various fastening methods will be described with reference to FIG. 3 to FIG. 3 illustrates a fastening structure for fixing an external clip and a permalloy belt fixing method according to an embodiment of the present invention. Meanwhile, FIG. 4 shows a fastening structure of an inner clip fixing type and a permalloy belt fixing type according to another embodiment of the present invention. 5 is a perspective view illustrating a fastening structure for fixing an inner clip and a permalloy belt according to another embodiment of the present invention.

Referring to FIGS. 1 and 3, the clamp mechanism unit 300 includes an external mechanism 310 and an internal mechanism 320. Here, the external mechanism 310 may be configured to variably fasten the belt portion 100 to match the diameter of the power line. Meanwhile, the internal mechanism 320 may be formed in a stepped shape, and may be connected to the external mechanism 310 through a stepped protrusion area. At this time, the circuit board 200 may be placed on the seating area in the form of a step of the internal mechanism 320. The belt unit 100 and the clamp mechanism unit 300 are separated from each other by an inner clip 410 formed at one end of the outer mechanism 310 and a groove 420 formed at the protruded region corresponding to the inner clip 410 It can be fixed in an inner clip fixing manner.

Referring to FIGS. 1 and 4, the clamp mechanism 300 'includes an external mechanism 310' and an internal mechanism 320 '. Here, the external mechanism 310 'may be configured to variably fasten the belt portion 100 to match the diameter of the power line. Meanwhile, the internal mechanism 320 'may be formed in a stepped shape, and may be connected to the external mechanism 310 through a stepped protruding area. At this time, the circuit board 200 may be placed on the seating area in the form of a step of the internal mechanism 320 '. The belt unit 100 and the clamp mechanism unit 300 include an outer clip 411 formed at one end of the outer mechanism 310 'and a groove 421 formed in the protruded area corresponding to the outer clip 411, So that it can be fixed with an external clip fixing method.

Referring to Figures 1 and 5, the clamp mechanism portion 300 " includes an external mechanism 310 " and an internal mechanism 320 ". Here, the external mechanism 310 " may be configured to variably fasten the belt portion 100 to match the diameter of the power line. On the other hand, the internal mechanism 320 " may be configured in a stepped configuration and may be coupled to the external mechanism 310 " through a stepped protrusion area. At this time, the circuit board 200 may be placed on the seating area in the form of a step of the internal mechanism 320 ". Accordingly, the belt portion 100 and the clamp mechanism portion 300 can be bolted through the first hole 412 of the first radius and the second hole 422 of the second radius. That is, a first hole 412 having a first radius formed in a specific region of the external mechanism 310 '' and a second hole 422 having a second radius formed in the protruding region corresponding to the first hole 412, The bolts can be fixed in a bolt fixing manner.

6 shows a detailed structure of functional blocks of a circuit board according to the present invention. 7 is a detailed block diagram of functional blocks of an RF, an MCU, and a sensor unit according to an embodiment of the present invention.

6, the circuit board 200 includes an energy harvester 301, a rectifier 302, a circuit portion 303, a voltage regulator 304, an RF and an MCU, and a sensor portion 500. 7, the RF and MCU, the sensor unit 500, and the voltage regulator 304 are connected to the circuit unit 303 and the voltage regulator 304, respectively. On the other hand, the RF and MCU, the sensor unit 500 include sensors such as a current sensor 501, a temperature sensor 502, and a gas sensor 503. In addition, the RF and MCU, and the sensor unit 500 further include a control unit 504 and an RF transceiver (not shown).

The energy harvester 301 is configured to be attachable on a power line, and is configured to induce an induced current from electromagnetic energy formed around the power line. According to one example, the energy harvester 301 may be a coil implemented on a belt and an electronic circuit connected thereto.

The rectifier 302 may be configured to convert an alternating current (AC) voltage corresponding to the generated electrical energy to a direct current (DC) voltage. The circuit portion 303 may be configured to store the converted direct current (DC) voltage from the rectifier 302. At this time, the circuit unit 303 may include a storage circuit and a storage component, as shown in FIG. The voltage regulator 304 may be configured to convert the stored DC voltage to a voltage of a specific value in order to transmit the stored DC voltage to a monitoring control unit (MCU).

On the other hand, the current sensor 501 is configured to receive the converted voltage from the voltage regulator 304 and measure the current of the power line. That is, the current sensor 501 may be a sensor capable of measuring current, for example, a current sensor other than a Hall sensor, a current transducer (CT), and the like. In this regard, the current sensor 501 need not be limited to wrapping the entire cable, such as a power line, but may be disposed in only a portion of the cable. Meanwhile, the current sensor 501 may be configured to transmit the first signal to the controller 504 if the measured current corresponds to a reporting state or an abnormal state.

The temperature sensor receives the converted voltage from the voltage regulator 304, measures the temperature of the power line, and transmits the second signal to the controller 504 when the measured temperature is in the reporting state or the abnormal state .

The gas sensor 503 receives the converted voltage from the voltage regulator 304, detects the power line and a specific gas around the power line, and when the detected amount of gas corresponds to a reporting state or an abnormal state, As shown in FIG.

Thus, the meaning that different measured physical quantities of current, temperature, and gas measurement values can be transmitted in different signals can be interpreted in two senses. That is, an identifier (ID) may be appended indicating current, temperature, and gas measurements as well as the measured physical quantity before this measurement corresponds to current, temperature, and gas. In this regard, when the ID of a specific sensor is added, not only the measured physical quantity can be known as the current, the temperature, and the gas, but also the position where the sensor is attached can be known.

In this regard, Figure 8 illustrates the shape of a test sample with a plurality of powerline energy harvesters attached to specific locations of the power line, in accordance with one embodiment of the present invention. Referring to FIG. 8, a plurality of power line energy harvesters may be fastened with fastening structures as shown in FIGS. Further, as shown in Fig. 8, a plurality of power line energy harvesters need to recognize their position disposed on the power line. In this regard, FIG. 9 shows a communication test result of the temperature sensor according to an embodiment of the present invention. On the other hand, the communication test result of the temperature sensor in Fig. 9 is an example, and the communication test of the current sensor and the gas sensor can be performed in the present invention.

As shown in Fig. 9, the temperature sensor. Current sensor, and gas sensor, the sensor data may be displayed in a form in which the module ID and the sensor value are combined. At this time, the module ID can be indicated not only by the type of the data to be sensed but also by a different ID depending on the type of the belt portion, for example, the thickness of the permalloy coating material. For example, if the thickness of the coating material is 0.35T, the ID is assigned to 41 for the temperature data, and if the thickness of the coating material is 0.35T, the ID for the temperature data may be assigned to 42.

In connection with a communication system for transmitting such sensor data, Fig. 10 shows the concept of wireless communication with a power line adaptive energy harvester according to the present invention. Figure 11 also shows a conceptual flow chart related to energy harvesting and sensor data acquisition and transmission in accordance with the present invention.

Referring to FIG. 10, an energy harvester 1000 having a sensor function may be disposed at a specific position of a power line. 7 and 10, the energy harvester 1000 may include various sensors such as a current sensor 501, a temperature sensor 502, and a gas sensor 503. As shown in FIG. 10, Wireless sensors may be deployed in a particular deployment. Meanwhile, as shown in FIG. 10, the power line adaptive energy harvesting wireless sensor can use the self-generated electric energy as a wireless sensor power source by utilizing an electromagnetic field (EMF) formed around the power cable. In addition, the sensor data collected through the wireless sensor can be transmitted to the network through the receiver 600. [

Referring to FIG. 11, in step 1), electric power is induced from an electromagnetic field formed around a power line cable to an EH coil (thin coil). In step 2), the induced power can be converted into usable electrical energy through the PMIC circuit. In step 3), it is possible to operate the sensor power and RF by utilizing the generated electric energy. In step 4), data and ID received from the sensor can be transmitted over the network. Periodically or eventually measured data and IDs can be transmitted to servers and HMIs on the network. In step 5), the received data can be stored in the server and can be confirmed on the HMI.

In this regard, the RF transceiver may be configured to transmit the different messages generated from the controller to a receiver as a radio frequency (RF) signal. The control unit 504 is connected to the voltage regulator 304, the current sensor 501, the temperature sensor 502 and the gas sensor 503 so that the voltage converted from the voltage regulator 304 And to supply the voltage to the current sensor 501, the temperature sensor 502, and the gas sensor 503. The control unit 504 determines the type of the signal received from the current sensor 501, the temperature sensor 502 and the gas sensor 503 and the type of the signal received from the gas sensor 503, It is therefore possible to generate different messages.

Here, the different messages may be composed of a module identifier (ID) and a measurement value subsequent to the module identifier (ID), as shown in FIG. The module identifier (ID) may be an ID for distinguishing a plurality of belts. On the other hand, the measured value is the current, temperature, and gas measurement values received from either the current sensor 501, the temperature sensor 502, or the gas sensor 503. On the other hand, if the measured value is a value measured from the gas sensor, it may include information on the gas measurement value and the type of the specific gas. Also, different signals may be transmitted from the RF transceiver to the receiver at different frequencies depending on the position of the belt unit 100 on the power line. Accordingly, even if the information on the position where the energy harvester 1000 is disposed in the receiver 600 is erroneously decoded, it is possible to demodulate the receiver 600 at different frequencies and determine from which position the information is transmitted. In this way, in an application in which the occurrence of an anomaly in a power line is very important, information on the position can be not only confirmed through encoded information but also modulated at different frequencies and can be distinguished.

Accordingly, a power line energy harvester device according to at least one embodiment of the present invention can provide an apparatus for supplying power to a sensor for detecting the state of a power line having various forms in the form of a belt.

In addition, the power line energy harvester device according to at least one embodiment of the present invention can provide an energy harvester device of a shape that can be attached to a power line through a mechanism structure for fixing the belt part in a belt-like structure.

According to a software implementation, not only the procedures and functions described herein, but also each component may be implemented as a separate software module. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in a memory and can be executed by a controller or a processor.

1000: Power line energy harvester
100: belt part 200: circuit board
300: clamp mechanism unit 301: energy harvester
302: rectifier 303:
304: Voltage regulator 310: External device
320: internal mechanism 400: fastening part
410, 411: inner clip 420, 421: groove
412, 422: first hole, second hole 450: second fastening part
500: RF and MCU, sensor unit
510: current sensor 502: temperature sensor
503: gas sensor 504:
600: receiver

Claims (11)

In a power line energy harvester,
A belt portion configured to be attachable on a power line and having a coil arranged to induce an induced current from electromagnetic energy formed around the power line; And
And a circuit board disposed in a portion of the belt portion and configured to generate electrical energy from the induced current. And a clamp mechanism portion for fixing the belt portion at both ends of the belt portion. 3. The method of claim 2,
Wherein the circuit board is mounted in the belt portion of permalloy material or in the clamp mechanism portion in the form of a flexible printed circuit board,
Wherein the clamp mechanism portion includes: an external mechanism configured to variably fasten the belt portion to fit the diameter of the power line; And
And an internal mechanism configured in a stepped shape and connected to the external mechanism through the protruding region in the form of a step,
Wherein the circuit board is disposed on the seating area in the stepped configuration. The method of claim 3,
Wherein the belt portion and the clamp mechanism portion comprise:
Wherein the inner clip is fixed in an inner clip fixing manner through an inner clip formed at one end of the outer mechanism and a groove formed in the protruding area corresponding to the inner clip. The method of claim 3,
Wherein the belt portion and the clamp mechanism portion comprise:
Wherein the outer clip is fixed in an outer clip fixing manner through an outer clip formed at one end of the outer mechanism and a groove formed in the protrusion corresponding to the outer clip. The method of claim 3,
Wherein the belt portion and the clamp mechanism portion comprise:
A first hole having a first radius formed in a specific region of the external mechanism and a second hole having a second radius formed in the protruding region corresponding to the first hole, The power line energy harvester. 7. The method according to any one of claims 4 to 6,
Characterized in that the fastening of the clamping mechanism part is fastened through the fastening part on one side and the internal mechanism and the external mechanism are connected on the other side in the form of a hinge. The method according to claim 1,
The circuit board includes:
A rectifier for converting an AC voltage corresponding to the generated electric energy into a DC voltage;
A circuit for storing a DC voltage converted from the rectifier; And
And a voltage regulator for converting the stored direct current (DC) voltage into a voltage of a specific value for transferring the stored direct current (DC) voltage to a monitoring control unit (MCU). 9. The method of claim 8,
The circuit board includes:
A current sensor for receiving the converted voltage from the voltage regulator and measuring the current of the power line; And
Further comprising a temperature sensor for receiving the converted voltage from the voltage regulator and for measuring the temperature of the power line,
Wherein the current sensor transmits a first signal to the controller if the measured current corresponds to a reporting state or an abnormal state,
Wherein the temperature sensor transmits a second signal to the control unit when the measured temperature corresponds to a reporting condition or an abnormal condition. 10. The method of claim 9,
The circuit board includes:
And a temperature sensor connected to the voltage regulator, the current sensor and the temperature sensor for receiving the voltage converted from the voltage regulator and supplying the voltage to the current sensor and the temperature sensor, A controller for generating a different message according to the type of the received signal and the position where the belt portion is disposed on the power line; And
And an RF transmitting and receiving unit for transmitting the different messages generated from the control unit to a receiver as a radio frequency (RF) signal. 11. The method of claim 10,
Wherein the different message comprises a module identifier (ID) and a measurement value subsequent to the module identifier (ID)
The module identifier (ID) is an ID for distinguishing a plurality of belts,
Wherein the measured value is the current received from either the current sensor or the temperature sensor and the temperature measurement value,
Wherein different signals are transmitted from the RF transceiver to the receiver at different frequencies depending on where the belt section is disposed on the power line.

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