KR102313451B1 - Remote power control method in unmanned facilities, and system thereof - Google Patents

Abstract

The present invention relates to an earth leakage breaker installed at unmanned facilities, a system for remotely controlling the same, and a method thereof. The remote power control system of the present invention comprises an unmanned facility power measuring unit located inside the unmanned facilities and an unmanned facility power control unit located at a remote area from the unmanned facilities. The unmanned facility power measuring unit may transmit an earth leakage continuation state or an earth leakage release state of the earth leakage breaker to the unmanned facility power control unit. In addition, the unmanned facility power measuring unit may receive a recovery control command from the unmanned facility power control unit to recover the earth leakage breaker after inspecting the earth leakage release state of the earth leakage breaker.

Description

REMOTE POWER CONTROL METHOD IN UNMANNED FACILITIES, AND SYSTEM THEREOF }

The present invention relates to a method and system for remotely controlling power to an unmanned facility.

More particularly, it relates to an earth leakage breaker installed in an unmanned facility and a method and system for remotely controlling the same.

With the recent continuous development of information and communication technology, the technology of the Internet of Things (IoT) based on mobile communication and wireless communication is also growing at a rapid pace.

As a result, the number of installations of mobile communication repeaters and wireless communication gateways for operating the Internet of Things is increasing day by day.

In order to operate communication facilities such as a mobile communication repeater and a wireless communication gateway, power must be supplied. When supplying power to these communication facilities, there is a possibility that a short circuit may occur.

A short circuit is an electric current that leaks to another place instead of being supplied normally in a wire or a device that uses electricity.

Electric leakage may occur due to insufficient insulation of the electric wire or moisture penetrating into the electric device.

Earth leakage can be classified into capacitive leakage, resistive leakage, and leakage due to disturbance. Capacitive earth leakage occurs when electricity is used more than the allowable capacity of the earth leakage breaker due to a rapid increase in power consumption in summer or winter. Resistive leakage occurs when insulation is not made due to poor coating of electric wires, or moisture or the like penetrates into an electric device to cause a short circuit. Earth leakage due to disturbance is caused by the introduction of harmonics due to lightning strikes or power supply from the upper stage.

Such a short circuit may cause an electric shock to a person using the electrical device or damage the electrical device. In addition, there is a risk of generating heat due to a short circuit, and a large fire may occur due to flammable materials or the like. Therefore, there is a need to quickly detect and block a short circuit in an electric wire or electric device.

The earth leakage breaker measures the electric current supplied to the electric device through the electric wire and the electric current flowing out of the electric equipment through the electric wire, respectively, and then breaks the circuit of the electric equipment when the difference between them exceeds a certain value. Earth leakage breaker is essential in facilities that use electricity.

In a facility such as a base station in which a communication facility manager or operator resides, an earth leakage breaker connected to a mobile communication repeater and a wireless communication gateway can be managed relatively easily.

However, in an unmanned facility, it is not easy to manage an earth leakage breaker connected to a mobile communication repeater and a wireless communication gateway without directly visiting the site.

In particular, in an unmanned facility, it is frequent that an earth leakage circuit breaker operates due to an earth leakage caused by disturbance, rather than a capacitive or resistive earth leakage.

When the earth leakage breaker is restarted without accurately identifying the cause of the leakage, various problems may occur, for example, a fire due to electricity may occur.

Accordingly, there is a need for a method and system capable of remotely controlling an earth leakage breaker connected to a mobile communication repeater and a wireless communication gateway in an unmanned facility.

An object of the present invention is to solve the above problems, and to provide an earth leakage breaker installed in an unmanned facility, and a method and system for remotely controlling the operation of the earth leakage breaker.

In order to achieve the above object, the present invention includes an unmanned facility power measurement unit and an unmanned facility power control unit, wherein the unmanned facility power measurement unit includes: an earth leakage breaker for blocking the occurrence of an earth leakage in an unmanned facility; an electrical sensor module for measuring electrical information of the earth leakage breaker; an environmental sensor module for measuring environmental information around the earth leakage breaker; a state information generating module that converts the electrical information and the environmental information into digital data; a first control module for controlling the operation of the earth leakage breaker; a first communication module for communicating with the unmanned facility power control unit, wherein the unmanned facility power control unit includes: a monitoring module for displaying the electrical information and the environmental information; a second control module for controlling an operation of the first control module; It provides a remote power control system of an unmanned facility including a second communication module for communicating with the unmanned facility power measurement unit.

Another embodiment of the present invention, in the remote power control system of an unmanned facility, (S1) the electrical sensor module measures the first current supplied to the unmanned facility and the second current flowing from the unmanned facility to the earth leakage breaker, , generating an earth leakage signal when a difference between the first current and the second current exceeds the first difference; (S2) the first control module, after receiving the earth leakage signal, determines that the earth leakage signal is a noise signal when the switch of the earth leakage breaker is on, and the switch of the earth leakage breaker is off determining the leakage signal as a normal signal when in a state; (S3) when the first control module determines that the earth leakage signal is a normal signal, the first control module flickering the manual LED of the earth leakage breaker and emitting the earth leakage LED of the earth leakage breaker in red; (S4) sending, by the second control module, a recovery control command to the first control module after a first time has elapsed; (S5) After the first control module supplies current to the test LED of the earth leakage breaker for a second time, when the photo coupler of the earth leakage breaker is in a high state, the earth leakage breaker is in the earth leakage release state detecting that the earth leakage breaker is in a low state when the photo coupler of the earth leakage breaker is in a low state; (S6) When the first control module detects that the earth leakage breaker is in an earth leakage continuation state, at a first interval for a third time, after supplying the current to the test LED of the earth leakage breaker for the second time again, When the photo coupler of the earth leakage breaker is in a high state, it is detected that the earth leakage breaker is in an earth leakage release state and proceeds to the next step, and when the photo coupler of the earth leakage breaker is in a low state, the earth leakage breaker detecting that it is in an earth leakage continuation state and performing the step (S4) again; (S7) the first control module supplies current to the recovery LED of the earth leakage breaker for a fourth time, and operates the electromagnet of the earth leakage breaker to convert the earth leakage breaker into an on state A remote power control method for an unmanned facility is provided.

The present invention can remotely control the operation of an earth leakage breaker connected to an unmanned facility, thereby reducing the maintenance cost of the unmanned facility. In addition, since it is possible to control the power supplied to the unmanned facility without visiting the site, it is possible to secure the safety of the operator.

1A is a schematic block diagram illustrating a remote power control system for an unmanned facility according to an embodiment of the present invention.
1B is a block diagram schematically illustrating an earth leakage circuit breaker of a remote power control system of an unmanned facility according to an embodiment of the present invention.
2 is a flowchart schematically illustrating a remote control method of an earth leakage breaker according to an embodiment of the present invention.
3 is a flowchart schematically illustrating a method for monitoring state information of an earth leakage breaker using NILM according to an embodiment of the present invention.

The present invention may be practiced with various modifications without departing from the spirit, and may have one or more embodiments. And, in the present invention, the embodiments described in “specific content for carrying out the invention” and “drawings” are examples for describing the present invention in detail, and do not limit or limit the scope of the present invention.

Therefore, those with ordinary knowledge in the technical field to which the present invention pertains can easily infer from "specific contents for carrying out the invention" and "drawings" of the present invention are interpreted as belonging to the scope of the present invention. can do.

In addition, the size and shape of each component shown in the drawings may be exaggerated for the description of the embodiment, and do not limit the size and shape of the actually implemented invention.

Unless a term used in the specification of the present invention is specifically defined, it may have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1A is a schematic block diagram illustrating a remote power control system for an unmanned facility according to an embodiment of the present invention. 1B is a block diagram schematically illustrating an earth leakage circuit breaker of a remote power control system of an unmanned facility according to an embodiment of the present invention.

The remote power control system 100 of an unmanned facility according to an embodiment of the present invention includes an unmanned facility power measurement unit 110 and an unmanned facility power control unit 120 .

The unmanned facility power measurement unit 110 may measure the electrical information value of the earth leakage breaker connected to a communication facility (UCD) such as a mobile communication repeater or a wireless communication gateway located inside the unmanned facility.

In addition, the unmanned facility power measurement unit 110 may measure environmental information values such as temperature, humidity, vibration, dust, fine dust, numerical values, gas, and ions around the earth leakage breaker inside the unmanned facility.

In addition, the unmanned facility power measurement unit 110 may control the operation of the earth leakage breaker.

The unmanned facility power measuring unit 110 may be located inside the unmanned facility. And the unmanned facility power measurement unit 110, the earth leakage breaker 111 and the electric sensor module 112, the environmental sensor module 113, the state information generation module 114, the first control module 115, the first communication module 116 .

The earth leakage breaker 111 may block the occurrence of an earth leakage in a communication facility (UCD) located inside the unmanned facility.

The earth leakage breaker 111 may include an electromagnet 111a, a switch 111b, a passive LED 111c, an earth leakage LED 111d, a test LED 111e, a photo coupler 111f, and a recovery LED 111g. .

The electromagnet 111a may connect or block a circuit between the earth leakage breaker 111 and the communication facility (UCD). The electromagnet 111a may block the circuit connection between the earth leakage breaker 111 and the communication facility UCD by increasing the attractive force when the current flowing in the communication facility UCD increases.

The switch 111b may convert the earth leakage breaker 111 into an on state or an off state. That is, the switch 111b may connect or block between the earth leakage breaker 111 and the communication facility (UCD).

The manual LED 111c may display an on state or an off state of the switch 111b. For example, the passive LED 111c may emit light when the switch 111b is in an on state, and may blink when the switch 111b is in an off state.

The earth leakage LED 111d may display the earth leakage continuation state. For example, the earth leakage LED 111d may emit red light when the earth leakage continues.

The test LED 111e and the photo coupler 111f may test whether the leakage state is released. For example, after supplying a current to the test LED 111e, it can be checked by the photo coupler 111f whether light is emitted. When the leakage state is released, a current flows through the test LED 111e to emit light, and the photo coupler 111f may receive the light. On the other hand, when the leakage state continues, the test LED 111e does not emit light, so the photo coupler 111f cannot receive light.

The recovery LED 111g may emit light when the earth leakage is released to indicate that the earth leakage breaker 111 is operating normally.

The electric sensor module 112 may be connected to the earth leakage breaker 111 to measure electrical information (voltage, current, power amount, etc.) of the earth leakage breaker 111 .

Electrical sensor module 112, a circuit breaker 111, a current (I _R) supplied with a voltage (V _R) to be input to each can be measured.

In particular, the electrical sensor module 112 is a first current (I1) supplied to the communication facility (UCD) connected to the earth leakage breaker 111, and the second current (I2) flowing from the communication facility (UCD) to the earth leakage breaker 111 ) can be measured individually. When the difference between the first current I1 and the second current I2 exceeds a predetermined value (the first difference), the electric sensor module 112 generates an earth leakage signal LS to generate the state information generating module 114 . ) and the first control module 115 .

In addition, the electric sensor module 112 may measure _{the amount of electric power (W C} ) consumed in a communication facility (UCD) located inside the unmanned facility.

In addition, the electric sensor module 112 may _{measure an abnormal current I U} generated by a surge or the like.

The environmental sensor module 113 may be positioned around the earth leakage breaker 111 to measure environmental information such as temperature, humidity, vibration, dust, fine dust, gas, and ions around the earth leakage breaker 111 .

There is a possibility that an overcurrent or a short circuit may occur due to an increase in the temperature of a communication facility (UCD) located inside the unmanned facility or the humidity inside the unmanned facility.

In addition, there is a possibility that a short circuit may occur due to vibration generated due to a defective fastening of the device fixed inside the unmanned facility. In addition, since dust, fine dust, gas, ions, etc. are scattered inside the unmanned facility and sparks are generated, there is a possibility that an electric leakage may occur.

The environmental sensor module 113 continuously measures environmental information such as temperature and humidity inside the unmanned facility, the temperature of the wire, vibration, dust, fine dust, gas, ions, etc. in real time, to the electrical sensor module 112 . It is possible to constantly monitor the possibility of leakage by assisting.

The state information generating module 114 may convert information measured by the electrical sensor module 112 and the environmental sensor module 113 into digital data in a predetermined format.

_{For example, the state information generation module 114 may convert the voltage (V R} ) and the current ( _IR ) supplied to the earth leakage breaker 111 measured by the electrical sensor module 112 into digital data, respectively. have.

The state information generating module 114 includes the first current I1 supplied to the communication facility (UCD) connected to the earth leakage breaker 111 measured by the electrical sensor module 112, and the earth leakage breaker from the communication facility (UCD) ( The second current I2 flowing through the 111 may be converted into digital data, respectively.

The state information generating module 114 may convert the earth leakage signal LS generated by the electric sensor module 112 into digital data.

_{The state information generating module 114 may convert the amount of electric power (W C} ) consumed by the communication facility (UCD) located inside the unmanned facility measured by the electric sensor module 112 into digital data.

_{The state information generation module 114 may convert an abnormal current I U} generated by a surge measured by the electric sensor module 112 into digital data.

The state information generation module 114 converts environmental information such as temperature and humidity inside the unmanned facility, wire temperature, vibration, dust, fine dust, gas, and ions measured by the environmental sensor module 113, respectively, into digital data. can create

The state information generating module 114 may add time information to the converted digital data.

The state information generation module 114 may generate an integrated power amount W _I as digital data by adding up the amount of power consumed by the communication facility (UCD) (W _{C ).}

In addition, the state information generating module 114 may generate the instantaneous maximum electric power (W _max ) and the instantaneous minimum electric energy (W _min ) from the electric energy consumed in the communication facility (UCD) (W _C ) as digital data.

In addition, the state information generation module 114 may generate a change amount (W _{D ) of the amount of power (W C} ) consumed in the communication facility (UCD) as digital data.

The state information generating module 114 may transmit the converted or generated digital data to the first communication module 116 .

The first control module 115 may control the operation of the earth leakage breaker 111 .

The first control module 115 may check the switch 111b state of the earth leakage breaker 111, the light emission state of the LED, and the light reception state of the photo coupler 111f, and the earth leakage signal LS from the electric sensor module 112 ) can be transmitted. Alternatively, the first control module 115 may monitor a communication facility (UCD) or other electrical device connected to the earth leakage breaker 111 using a nonintrusive load monitoring (NILM).

The first control module 115 may check the state of the switch 111b of the earth leakage breaker 111 when receiving the earth leakage signal LS.

The first control module 115 may determine the earth leakage signal LS as a noise signal when the switch 111b of the earth leakage breaker 111 is in an on state, and may determine the earth leakage signal LS as a noise signal when it is in an off state. (LS) can be judged as a normal signal. When it is determined that the earth leakage signal LS is a normal signal, the first control module 115 may flicker the passive LED 111c of the earth leakage breaker 111 and light the earth leakage LED 111d in red.

When the first control module 115 determines that the earth leakage signal LS is a normal signal, after the first time H1 has elapsed, it receives a recovery control command RC from the unmanned facility power control unit 120 and then checks the earth leakage state. can be inspected. For example, the first time H1 may be 3 seconds (s).

The first control module 115 may supply a current to the test LED 111e of the earth leakage breaker 111 for a second time H2. For example, the second time H2 may be 40 milliseconds (ms). At this time, when the photo coupler 111f of the earth leakage breaker 111 receives light from the test LED 111e, it may be in a high state, and when it does not receive the light, it may be in a low state.

When the photo coupler 111f is in a high state, the first control module 115 may detect an earth leakage release state. In addition, when the photo coupler 111f is in a low state, the first control module 115 may detect an electric leakage continuation state. And the first control module 115 supplies the current for the second time (H2) to the test LED 111e of the earth leakage breaker 111 after 1 second, and then the high or low (high) of the photo coupler 111f ( low) state can be checked one more time.

When the first control module 115 detects the earth leakage continuation state, the first control module 115 may check the earth leakage state at the first interval T1 for the third time H3. For example, the third time H3 may be 30 minutes (m), and the first interval T1 may be 10 seconds (s).

When the first control module 115 detects an earth leakage release state, the first control module 115 may supply a current to the recovery LED 111g of the earth leakage breaker 111 for a fourth time (H4). For example, the fourth time H4 may be 20 milliseconds (ms). In addition, the first control module 115 may operate the electromagnet 111a of the earth leakage breaker 111 to restore the earth leakage breaker 111 to an on state.

The first communication module 116 may communicate with the unmanned facility power control unit 120 .

The first communication module 116 may receive a recovery control command (RC) from the unmanned facility power control unit 120 , and the digital data converted or generated by the state information generation module 114 , the earth leakage breaker 111 . The switch 111b state, the light emitting state of the LED, and the light receiving state of the photo coupler 111f may be transmitted to the unmanned facility power control unit 120 .

The first communication module 116 may include a communication modem having a wired or wireless communication port.

For example, the communication modem of the first communication module 116 may include a serial port, a parallel port, a Small Computer System Interface (SCSI), a Universal Serial Bus (USB), IEEE 1394, and an Advanced Modem (ATA). Technology Attachment) and SATA (Serial Advanced Technology Attachment), including one or more wired communication ports, may receive a recovery control command (RC) from the unmanned facility power control unit 120 by wire, and the state information generation module 114 ) converted or generated digital data, the switch 111b state of the earth leakage breaker 111, the light emitting state of the LED, and the light receiving state of the photo coupler 111f can be transmitted to the unmanned facility power control unit 120 .

Alternatively, the communication modem of the first communication module 116 is a wireless communication modem of any one of a Long Term Evolution (LTE) modem and a 5G modem, and transmits a recovery control command (RC) from the unmanned facility power control unit 120 by wire. Unmanned facility power control unit can receive, the state information generating module 114 converted or generated digital data, the switch 111b state of the earth leakage breaker 111, the light emission state of the LED and the light reception state of the photo coupler 111f may be sent to 120 .

Or the first communication module 116, including a universal asynchronous transceiver (Universal Asynchronous Receiver / Transmitter), digital data converted or generated by the state information generating module 114, the switch 111b of the earth leakage breaker 111 The state, the light emitting state of the LED, and the light receiving state of the photo coupler 111f may be transmitted to the unmanned facility power control unit 120 .

The unmanned facility power control unit 120 may monitor the state of the communication facility (UCD) and the earth leakage breaker 111 inside the unmanned facility, and may control the operation of the first control module 115 .

The unmanned facility power control unit 120 may be located at a remote location from the unmanned facility. In addition, the unmanned facility power control unit 120 may include a monitoring module 121 , a second control module 122 , and a second communication module 123 .

The monitoring module 121 may display digital data measured and generated by the unmanned facility power measurement unit 110 .

The monitoring module 121 may display one or more of the digital data of Table 1 below.

Digital data displayed on the monitoring module 121 (1) Voltage input to earth leakage breaker 111 (V _R )
(2) Current supplied to the earth leakage breaker 111 (I _R )
(3) State of the switch (111b) of the earth leakage breaker (111)
(4) the light emission state of the passive LED 111c, the earth leakage LED 111d, the test LED 111e, the recovery LED 111g of the earth leakage breaker 111, and the light reception state of the photo coupler 111f
(5) the first current (I1) supplied to the communication facility (UCD)
(6) the second current (I2) flowing from the communication facility (UCD) to the earth leakage breaker 111
(7) Earth leakage signal (LS)
(8) Electricity consumed by telecommunication facilities (UCD) (W _C )
(9) Abnormal current (I _U )
(10) Temperature and humidity inside unmanned facilities, temperature of wires, vibration, dust, fine dust, gas, and ion levels
(11) Accumulated electric power (W _I )
(12) Instantaneous maximum wattage (W _max ) and instantaneous minimum wattage (W _min )
(13) Amount of change of _{wattage (W C ) (W D} )

The monitoring module 121 may display the digital data using numerical values, graphs, charts, and the like. The monitoring module 121 may configure a user interface based on a web. The second control module 122 may control an operation of the configuration of the unmanned facility power measurement unit 110 .

When a normal electric leakage signal LS is generated from the electric sensor module 112 of the unmanned facility power measurement unit 110, the second control module 122 is the second communication module after the first time H1 has elapsed. The recovery control command RC may be transmitted to the first control module 115 through the 123 and the first communication module 116 .

The first control module 115 that has received the recovery control command RC may inspect the ground leakage state and then restore the ground leakage breaker 111 to the on state when the ground leakage release state is established. In addition, the first control module 115 may transmit that the ground leakage breaker 111 is in an earth leakage release state to the second control module 122 through the first communication module 116 and the second communication module 123 .

When the earth leakage continues state, the first control module 115 may transmit that the earth leakage breaker 111 is in the earth leakage continuous state to the second control module 122 . When the earth leakage continuation state continues for the third time period H3, the second control module 122 transmits the recovery control command RC to the first control module 115 again after the first time period H1 has elapsed. can

The second communication module 123 may transmit a recovery control command (RC) to the unmanned facility power measurement unit 110 , and the digital data converted or generated by the state information generation module 114 , the earth leakage breaker 111 . The switch 111b state, the light emitting state of the LED, and the light receiving state of the photo coupler 111f may be transmitted from the first communication module 116 of the unmanned facility power measurement unit 110 .

The second communication module 123 may include a communication modem having a wired or wireless communication port.

For example, the communication modem of the second communication module 123 may include any one or more wired communication ports of a serial port, a parallel port, SCSI, USB, IEEE 1394, ATA, and SATA.

Alternatively, the communication modem of the second communication module 123 may be any one of an LTE modem and a 5G modem.

Alternatively, the second communication module 123 may include a universal asynchronous receiver/transmitter.

2 is a flowchart schematically illustrating a remote control method of an earth leakage breaker according to an embodiment of the present invention.

The remote control method (S1 to S7) of the earth leakage breaker according to an embodiment of the present invention is a method of controlling the restoration of the earth leakage breaker 111 in the earth leakage continuation state.

The first step ( S1 ) is a step in which the electric sensor module 112 generates an earth leakage signal LS.

Electrical sensor module 112, the first current (I1) supplied to the communication facility (UCD) connected to the earth leakage breaker 111, and the second current (I2) flowing from the communication facility (UCD) to the earth leakage breaker 111 can be measured individually.

When the difference between the first current I1 and the second current I2 exceeds a predetermined value (the first difference), the electric sensor module 112 generates an earth leakage signal LS to generate the first control module 115 ) can be transmitted.

The second step (S2) is a step in which the first control module 115 checks the leakage signal.

After receiving the earth leakage signal LS, the first control module 115 may determine the earth leakage signal LS as a noise signal when the switch 111b of the earth leakage breaker 111 is in an on state. . When the first control module 115 determines that the earth leakage signal LS is a noise signal, it may proceed to a start step and wait until the earth leakage signal LS occurs again.

When the switch 111b of the earth leakage breaker 111 is in an off state, the first control module 115 may determine the earth leakage signal LS as a normal signal and proceed to the third step S3.

The third step (S3) is a step in which the first control module 115 controls the LED of the earth leakage breaker.

When the first control module 115 determines that the earth leakage signal LS is a normal signal, the passive LED 111c of the earth leakage breaker 111 may blink, and the earth leakage LED 111d may emit red light.

The fourth step S4 is a step in which the second control module 122 transmits the recovery control command RC.

The second control module 122 may transmit the recovery control command RC to the first control module 115 after the first time H1 has elapsed.

A fifth step ( S5 ) is a step in which the first control module 115 checks the ground leakage state of the ground leakage breaker 111 .

The first control module 115 may supply a current to the test LED 111e of the earth leakage breaker 111 for a second time H2.

When the photo coupler 111f of the earth leakage breaker 111 receives light from the test LED 111e and becomes a high state, the first control module 115 determines that the earth leakage breaker 111 is in the earth leakage release state. After confirming, the seventh step (S7) may be performed.

When the photo coupler 111f of the earth leakage breaker 111 fails to receive light from the test LED 111e and is in a low state, the first control module 115 determines that the earth leakage breaker 111 is in a continuous state. After confirming that, the sixth step (S6) may be performed.

Then, the first control module 115 supplies a current for a second time H2 to the test LED 111e of the earth leakage breaker 111 after 1 second, and then the high or low of the photo coupler 111f. The (low) state can be checked one more time.

The sixth step ( S6 ) is a step in which the first control module 115 examines the earth leakage release state of the earth leakage breaker 111 .

When the first control module 115 determines that the earth leakage breaker 111 is in the earth leakage continuous state, it may check the earth leakage state at the first interval T1 for the third time H3.

The first control module 115 may check the leakage state in the same way as in the fifth step (S5).

When the first control module 115 determines that the earth leakage breaker 111 is in the earth leakage release state, the seventh step ( S7 ) may be performed.

When the first control module 115 determines that the earth leakage breaker 111 is in the earth leakage continuous state, the fourth step (S4) may be performed again.

A seventh step ( S7 ) is a step in which the first control module 115 restores the earth leakage breaker 111 .

After confirming the ground leakage release state, the first control module 115 may supply current to the recovery LED 111g of the ground leakage breaker 111 for a fourth time H4.

In addition, the first control module 115 may operate the electromagnet 111a of the earth leakage breaker 111 to restore the earth leakage breaker 111 to an on state.

3 is a flowchart schematically illustrating a method of monitoring state information of an earth leakage breaker using NILM according to an embodiment of the present invention.

The first step (P1) of the methods (P1 to P7) for monitoring the state information of the earth leakage breaker is a step in which the first control module 115 prepares for current measurement.

The first control module 115 may maintain a ready state so that the electrical sensor module 112 may receive the electrical information of the earth leakage breaker 111 newly measured by the electrical sensor module 112 .

The second step (P2) is a step in which the electrical sensor module 112 measures electrical information of the earth leakage breaker 111.

Electrical sensor module 112, the first current (I1) supplied to the communication facility (UCD) connected to the earth leakage breaker 111, and the second current (I2) flowing from the communication facility (UCD) to the earth leakage breaker 111 can be measured individually.

The third step P3 is a step in which the first control module 115 receives the status of the earth leakage breaker 111 .

The first control module 115 may receive, as an event, an earth leakage signal LS generated by the electric sensor module 112, a state of an LED included in the earth leakage breaker, and the like.

Alternatively, the first control module 115 periodically transmits a signal to the electrical sensor module 112 in a polling manner, and then, in the electrical sensor module 112, an earth leakage signal (LS), an LED included in the earth leakage breaker. status, etc. can be transmitted.

In this case, the polling period may be in units of 60 minutes, and the second control module 122 may change the polling period.

The fourth step (P4) is a step in which the first control module 115 transmits the state of the earth leakage breaker 111 to the second control module 122 .

The first control module 115 may transmit an earth leakage signal LS generated by the electric sensor module 112 , a state of an LED included in the earth leakage breaker, and the like to the second control module 122 .

The fifth step P5 is a step in which the first control module 115 determines whether the polling period is changed.

The first control module 115 may determine whether a polling period change command or a control number change command of the earth leakage breaker 111 has been transmitted from the second control module 122, and if received, the sixth step (P6) may be performed. .

If the first control module 115 has not received the command to change the polling period or the command to change the number of times of control of the earth leakage breaker 111 from the second control module 122 , the first step P1 may be performed again.

A sixth step (P6) is a step in which the first control module 115 applies a change in the polling period.

The first control module 115 may change a period for transmitting a signal to the electrical sensor module 112 according to a change in the polling period. Alternatively, the first control module 115 may change the number of times the ground leakage breaker 111 is controlled.

The seventh step P7 is a step in which the first control module 115 transmits that the polling period change has been completed to the second control module 122 .

The first control module 115 may notify the second control module 122 that the change in the polling period or the change in the number of times of control of the earth leakage breaker 111 is completed.

After executing the seventh step P7, the first step P1 may be performed again.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and as long as it does not deviate from the spirit of the present invention and does not impair the effect, it may vary within the scope of the detailed description and accompanying drawings of the present invention. It can be changed and implemented. It is also natural that such an embodiment falls within the scope of the present invention.

100: remote power control system for unmanned facilities
110: unmanned facility power measurement unit 111: earth leakage breaker
112: electrical sensor module 113: environmental sensor module
114: status information generation module 115: first control module
116: first communication module 120: unmanned facility power control unit
121: monitoring module 122: second control module
123: second communication module

Claims (10)

It includes an unmanned facility power measurement unit and an unmanned facility power control unit,
The unmanned facility power measurement unit,
an earth leakage breaker that blocks the occurrence of an earth leakage in an unmanned facility;
an electrical sensor module for measuring electrical information of the earth leakage breaker;
an environmental sensor module for measuring environmental information around the earth leakage breaker;
a state information generating module that converts the electrical information and the environmental information into digital data;
a first control module for controlling the operation of the earth leakage breaker;
A first communication module communicating with the unmanned facility power control unit,
The unmanned facility power control unit,
a monitoring module for displaying the electrical information and the environmental information;
a second control module for controlling an operation of the first control module;
and a second communication module communicating with the unmanned facility power measurement unit,
The earth leakage breaker,
an electromagnet for connecting or blocking a circuit between the unmanned facility and the earth leakage breaker;
a switch for manually converting the earth leakage breaker into an on state or an off state;
a passive LED that emits light when the switch is in an on state and blinks when the switch is in an off state;
an earth leakage LED that emits red light when the earth leakage continues;
a test LED for supplying a current when checking for an earth leakage condition;
a photo coupler for receiving light emitted from the test LED;
Includes a recovery LED that illuminates when the ground fault is released,
The environmental sensor module,
Measure the temperature, humidity, vibration, dust, fine dust, gas and ions around the earth leakage breaker,
(P1) maintaining, by the first control module, a ready state;
(P2) the electrical sensor module measuring the electrical information of the earth leakage breaker;
(P3) receiving, by the first control module, the electrical information of the earth leakage breaker from the electrical sensor module after periodically transmitting a signal to the electrical sensor module in a polling manner;
(P4) transmitting, by the first control module, electrical information of the earth leakage breaker to the second control module;
(P5) determining, by the first control module, whether a polling period change command has been transmitted from the second control module, proceeding to the next step if received, and re-executing step (P1) if not received; ;
(P6) changing, by the first control module, a period in which a signal is transmitted to the electrical sensor module in a polling manner;
(P7) the first control module notifying the second control module that the polling period change has been completed, including the step of executing the step (P1) again, monitoring the electrical information of the earth leakage breaker,
Remote power control system for unmanned facilities.
delete The method of claim 1,
The electrical sensor module,
a first current supplied to the unmanned facility; Measuring a second current flowing from the unmanned facility to the earth leakage breaker,
When the difference between the first current and the second current exceeds the first difference, a leakage signal is generated and transmitted to the first control module.
Remote power control system for unmanned facilities.
4. The method of claim 3,
When the first control module receives the leakage signal,
When the switch of the earth leakage breaker is in an on state, the earth leakage signal is determined as a noise signal,
When the switch of the earth leakage breaker is in an off state, determining the earth leakage signal as a normal signal
Remote power control system for unmanned facilities.
5. The method of claim 4,
When the first control module determines that the leakage signal is a normal signal,
The second control module transmits a recovery control command to the first control module after a first time has elapsed
Remote power control system for unmanned facilities.
6. The method of claim 5,
When the first control module receives the recovery control command,
After supplying current to the test LED of the earth leakage breaker for a second time,
When the photo coupler of the earth leakage breaker is in a high state, it is detected that the earth leakage breaker is in the earth leakage release state,
When the photo coupler of the earth leakage breaker is in a low state, detecting that the earth leakage breaker is in an earth leakage continuation state
Remote power control system for unmanned facilities.
7. The method of claim 6,
When the first control module detects that the earth leakage breaker is in an earth leakage continuous state,
After re-supplying current for the second time to the test LED of the earth leakage breaker at a first interval for a third time,
When the photo coupler of the earth leakage breaker is in a high state, it is detected that the earth leakage breaker is in the earth leakage release state,
When the photo coupler of the earth leakage breaker is in a low state, detecting that the earth leakage breaker is in an earth leakage continuation state
Remote power control system for unmanned facilities.
8. The method of claim 7,
When the first control module detects that the earth leakage breaker is in the earth leakage continuation state again,
The second control module transmits the recovery control command to the first control module after a first time has elapsed
Remote power control system for unmanned facilities.
8. The method according to claim 6 or 7,
When the first control module detects that the earth leakage breaker is in the earth leakage release state,
supplying current for a fourth time to the recovery LED of the earth leakage breaker;
A remote power control system of an unmanned facility that operates the electromagnet of the earth leakage breaker to convert the earth leakage breaker into an on state.
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