KR20120002207A - Ubiquitous switchboard for using smart remote control doors - Google Patents

Abstract

PURPOSE: A ubiquitous type distribution panel for being applied with a smart remote control door is provided to prevent the electric shock of an operator by watching the door state of a distribution panel and remotely controlling a desired door. CONSTITUTION: A distribution panel(100) houses instrument(102) which distributes electricity. An case(110) includes an opening part in one side and an internal space in which instrument is arranged. A door(120) is combined with the case to open and close an opening part of the case. A driving part(130) is arranged to apply mechanical power to open and shut the door. A radio frequency identification tag(140) offers a door control signal to the driving part according to a command of an external device. A coaxial cable(150) passes through the case or the door. A signal relay part(160) includes a relay antenna which is arranged by extending a communication distance.

Description

Ubiquitous switchgear with smart remote control door {UBIQUITOUS SWITCHBOARD FOR USING SMART REMOTE CONTROL DOORS}

The present invention relates to a ubiquitous switchgear having a smart remote control door.

A switchboard is a facility where relevant mechanical devices are installed to receive or distribute electricity for high voltage or special high voltage at a power plant, substation, switchgear, or the like.

The switchboard is housed and protected by a metal box so that the mechanical devices such as the high-pressure inlet switch and the breaker can not be easily operated by anyone except the operator. Moreover, the switchboard is normally exposed to special high pressures such as 22 kPa, 66 kPa, 154 kPa, 345 kPa and the corresponding high current atmosphere, so that the worker handling the switchboard must perform work and maintenance in accordance with safety rules.

However, the operator must open the door of the switchboard in some cases in order to record the reading results of various instruments in close proximity to the switchboard or to check the inside of the switchboard.

In addition, when an accident such as disconnection, short circuit, or ground fault occurs, an operator may need to operate a switchgear or a breaker of the switchgear in order to determine the cause of the accident or to replace a mechanical device inside the switchgear for maintenance. In that case, in order to open any one or more or all the doors of a large number of doors provided in one or more switchboards, it is necessary to find a corresponding key for one or more specific doors in a key bundle or a key box, or to open the doors one by one by searching for the corresponding key. There is discomfort and difficulty.

As a result of solving the above-described conventional problems of the present invention, an object of the present invention is to provide an intelligent switchboard having a remote control door.

According to an aspect of the present invention to solve the above technical problem, a switchboard for storing a mechanical mechanism for distributing electric power, comprising: an enclosure having an inner space in which the mechanical mechanism is disposed and having an opening at one side; A door coupled to the enclosure for opening and closing the opening of the enclosure; A drive unit disposed to apply a mechanical force to the door for opening and closing the door; And a remotely controllable door connected to the driving unit and including a wireless recognition tag for outputting a door control signal to the driving unit in response to a command of an external device.

In one embodiment, the driver and the RFID tag are disposed outside of the enclosure or door.

In one embodiment, the intelligent switchboard further comprises a drive unit disposed inside the enclosure or door, and a radio recognition tag disposed outside the enclosure or door, and further comprising a coaxial cable passing through the enclosure or door.

In one embodiment, the intelligent switchboard further comprises a relay antenna disposed to penetrate the enclosure or door to relay the transmission and reception of signals between the RFID tag disposed inside the enclosure or door and the RFID reader located outside the enclosure or door. Include.

The relay antenna may include a first antenna electromagnetically coupled to the antenna of the radio recognition tag; A second antenna disposed apart from the first antenna and electromagnetically coupled to the antenna at the reader side; And a wiring connecting the first and second antennas to form a single closed loop, wherein the wiring for transmitting the induced current generated in the first and second antennas to the second and first loop antennas, respectively. Can be.

The intelligent switchgear may further include a fixture for fixing the relay antenna to the enclosure or the door.

In one embodiment, the RFID tag is a storage unit for storing information about the switchboard or the door; A control unit communicating with an external device and controlling an output of information stored in the storage unit; An output unit connected to the controller and the driver and outputting a door control signal to the driver under the control of the controller; And an antenna connected to the controller.

The RFID tag may have a patch form and may be attached to one side of the driving unit.

The output unit may include a digital analog converter for converting a digital signal of the controller into an analog signal. The output of the digital to analog converter may be applied to the contact for inducing the operation of the power switch of the driver.

According to the present invention, it is possible to remotely monitor the door state of the switchboard, to selectively open or close only the desired door by remote control, all the doors can be opened or closed at once as needed. Therefore, door operation and management and operation convenience can be improved, and stability can be improved by preventing an electric shock accident of the operator by contacting the switchboard.

In addition, the function of the intelligent switchboard automation control system can be improved by automatically detecting the state of the distribution line and wirelessly transmitting the detected information. In addition, by automatically detecting the state of the power distribution line before powering on and transmitting the detected information through a wireless recognition system, it can contribute to the implementation of intelligent switchboard in ubiquitous environment or smart grid environment.

1A is a schematic block diagram illustrating a ubiquitous switchgear (hereinafter referred to as an intelligent switchgear) having a remote control door according to an embodiment of the present invention.
FIG. 1B is a front view for explaining an example of the intelligent switchboard of FIG. 1A.
2 is a view for explaining the principle of operation of the signal relay of the intelligent switchboard of FIG.
3 is a cross-sectional view illustrating an example of the signal relay of FIG. 2.
4 is a block diagram illustrating an example of a radio recognition tag of FIG. 1A.
5A is a schematic block diagram illustrating an intelligent switchboard according to another embodiment of the present invention.
FIG. 5B is a front view for explaining an example of the intelligent switchboard of FIG. 5A.
6A is a schematic block diagram illustrating an intelligent switchboard according to another embodiment of the present invention.
FIG. 6B is a front view for explaining an example of the intelligent switchboard of FIG. 6A.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and the following description. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular forms also include the plural unless specifically stated otherwise in the text. As used herein, the terms “comprise” and / or “comprising” refer to a component, step, operation, and / or element that is mentioned in one or more other components, steps, operations and / or elements. It does not exclude existence or addition.

FIG. 1A is a schematic block diagram illustrating a ubiquitous switchgear (hereinafter referred to as an intelligent switchboard) having a remote control door according to an embodiment of the present invention. FIG. 1B is a front view for explaining an example of the intelligent switchboard of FIG. 1A.

Referring to FIG. 1A, the intelligent switchboard 100 includes an enclosure 110 having one or more doors 120, a driver 130, a radio recognition tag 140, and a signal relay 160. The door 120 is opened and closed by the operation of the driver 130. The intelligent switchboard 100 according to the present embodiment is configured to remotely control one or more doors 120 to be opened or closed individually or simultaneously.

As an example, as shown in FIG. 1B, the intelligent switchboard 100 includes one or more doors 120. In the present embodiment, when the switchboard 100 is viewed from the front, the two doors 120 located at the center and the right side are closed, and one door 120 located at the left side is open.

Looking at the center of the open door (hereinafter, referred to as a first door) 120 on the left side, the first door 120 is to open and close the opening of the enclosure 110 in which the mechanical mechanism is disposed in the interior space 110. Is coupled to. The locking device 125 is coupled to one surface of the first door 120. One end of the locking device 125 is coupled to the key assembly 121 of the first door 120 and the other end thereof is coupled to the driving unit 130. In this embodiment, the driving unit 130 is attached to the inside of the enclosure (110).

The locking device 125 may include a first axis reciprocating in the horizontal direction by physical force such as rotational movement and linear reciprocation of the drive unit 130, and a second axis reciprocating in the vertical direction by movement of the first axis. It may be configured as. In that case, one end of the first shaft is coupled to the drive unit 130, and one end of the second shaft is coupled to the key assembly 121 of the door 120. The reciprocating motion of the second axis rotates the key assembly 121, whereby the key assembly 121 can be coupled to the enclosure 110 in a closed state or separated in an open state.

According to the above-described structure, when a predetermined physical or mechanical force is applied to the first door 120 from the driving unit 130 through the locking device 125, the key assembly coupled to one end of the locking device 125 ( As the 121 is switched to the open state, the first door 120 may be opened, or the key assembly 121 may be switched to the closed state as the first door 120 is closed.

In addition, the intelligent switchboard 100 according to the present embodiment performs wireless recognition communication between a tag located inside the switchboard 100 and a reader located outside the switchboard 100 despite the metallic enclosure 110 blocking wireless recognition communication. Configured to do so.

Referring back to FIG. 1B, the intelligent switchboard 100 includes a radio recognition tag 140 connected to the driver 130. In this embodiment, the wireless recognition tag 140 outputs pre-stored information by a command of a reader, and outputs a signal (for example, a door control signal) for door control to the driver 130 by a command of the reader. It is composed. The radio recognition tag 140 may be connected to the driver 130 by the coaxial cable 150.

In this embodiment, the radio recognition tag 140 is located inside the switchboard 100, and thus communication with the reader may be blocked by the metallic enclosure 110. In order to prevent this, the intelligent switchboard 100 of the present embodiment penetrates a part of the door 120 or the enclosure 110 and extends the signal relay unit 160 extending between the outside and the interior of the door 120 or the enclosure. Equipped. The signal relay unit 160 may include a relay antenna installed to extend a communication distance between the radio recognition tag 140 and the reader.

2 is a view for explaining the principle of operation of the signal relay of the intelligent switchboard of FIG.

Referring to FIG. 2, the signal relay unit 160 includes a first antenna 162, a second antenna 164, and a wire 166. The signal relay unit 160 is disposed through the distribution box so that the RFID tag disposed inside the switchboard and the RFID reader located outside the switchboard are electromagnetically coupled to each other without being disturbed by the metallic enclosure.

In more detail, in one embodiment, the first antenna 162 and the second antenna 164 are each provided to form its own loop antenna. The first and second antennas 162 and 164 are connected to each other by the wiring 166. The wiring 166 is provided such that each loop antenna of the first and second antennas 162 and 164 forms one large closed loop. The first antenna 162 of the signal relay unit 160 is disposed inside the distribution box for transmitting and receiving signals with the radio recognition tag, and the second antenna 164 is disposed outside the distribution box for transmitting and receiving signals with the radio reader. . The first antenna 162 may be located adjacent to the radio recognition tag due to the limitation of the communication distance.

Specific configurations such as the shape and dimensions of each part of the signal relay unit 100, the number of loops of the antenna, and the like are set in consideration of resonance frequency, impedance matching, coupling, and the like. The signal relay unit 160 may include a configuration in which a conductive pattern is printed or etched on a base substrate such as a printed circuit board, a plastic substrate, a flexible sheet, an insulating film, or the like.

An operation process of the signal relay unit 160 which relays communication between the wireless recognition tag (hereinafter simply referred to as tag) 140 and the wireless recognition reader (hereinafter simply referred to as reader) 200 will be described as follows. . In the description of this embodiment, the RFID tag 140 has a device body 145 and an antenna 148 connected to the device body 145, and the reader 200 is a reader for the RFID tag. And / or a device body 202 that performs a writer function, and an antenna 204 coupled to the device body 202.

When a signal is transmitted from the reader 200 to the tag 140, the signal of the reader 200 is blocked by the enclosure and cannot be directly transmitted to the tag 140. However, an induced current is generated in the second antenna 164 of the signal relay unit 160 by electromagnetic induction with the electromagnetic wave transmitted from the antenna 204 of the reader. The induced current is transmitted from the second antenna 164 to the first antenna 162 through the wiring 166, the transferred induced current is converted into electromagnetic waves at the first antenna 162, and the converted electromagnetic waves are The signal is received by the control unit through the antenna of the tag 140 inside the distribution box.

Similarly, when a signal is sent from the tag 140 to the reader side, the signal of the tag 140 is blocked by the enclosure and cannot be directly transmitted to the reader. However, an induced current is generated in the first antenna 162 of the signal relay unit 160 by the electromagnetic induction action with the electromagnetic wave transmitted from the antenna of the tag (see 158 of FIG. 4). The induced current is transmitted from the first antenna 162 to the second antenna 164 through the wiring 166, the transferred induced current is converted into electromagnetic waves at the second antenna 164, and the converted electromagnetic waves are It is sent as a signal to a reader outside the switchboard.

As such, according to the present exemplary embodiment, a direct communication channel may be formed between the tag 140 and the reader through the signal relay 160 installed to connect the inside and the outside of the metallic enclosure of the switchboard.

3 is a partial cross-sectional view of a more specific example of the signal relay of FIG. 2.

Referring to FIG. 3, the signal relay unit 160a according to the present embodiment includes a first antenna 162a, a second antenna 164a, a coaxial cable 166a, and a fixture 168.

The first antenna 162a has a spiral wire that forms a loop antenna. Both ends of the wire forming the first antenna 162a are connected to the first connector 161. The second antenna 164a has a spiral wire that forms a loop antenna. Both ends of the wire forming the second antenna 164a are connected to the second connector 163.

The loop antennas of the first and second antennas 162a and 164a form one closed loop by the coaxial cable 166a. The coaxial cable 166a may correspond to the wiring 166 described with reference to FIG. 2.

Coaxial cable 166a penetrates a portion of the switchboard, such as a predetermined portion of the door, and is fixedly coupled to the door by fasteners 188. The coaxial cable 166a is disposed in the center of the fixture 188, and both ends of the connector (not shown) and the second antenna 164a that are coupled to the first connector 161 of the first antenna 162a. Each other connector (not shown) coupled with the second connector 163 may be provided.

In one embodiment, the fastener 168 is a pair of a first fastener located inside the switchboard and a second fastener located outside the switchboard, and are fixedly coupled at both sides with an enclosure or a door interposed therebetween. The first fastener may have a bolt shape and the second fastener may have a nut shape.

4 is a schematic block diagram of an example of a radio recognition tag of FIG. 1A.

Referring to FIG. 4, the wireless recognition tag 140 according to the present embodiment includes a storage unit 142, a controller 144, an output unit 146, and an antenna 148.

The storage unit 142 stores information about the switchboard or the corresponding door. The storage unit 142 may be implemented as a semiconductor memory in the form of a microchip.

The controller 144 is connected to the storage 142, communicates with an external device (reader) located outside the switchboard, and controls the output of information stored in the storage 142. The control unit 144 is a circuit unit that executes predetermined processes such as communication processing, memory access, and power conversion processing, and performs operations required for reading a received signal, user authentication, data writing, and operation. In addition, the controller 144 controls the output unit 146 to output a predetermined pattern and a voltage or current signal having a predetermined level according to a command from the reader. The control unit 144 may be implemented as a single integrated circuit chip 145a together with the storage unit 142 and / or the output unit 146. The integrated circuit chip 145a of the radio recognition tag 140 may correspond to the device body 145 of FIG. 2.

The output unit 146 outputs a door control signal in response to a command from the reader. The output unit 146 may include a digital analog converter that converts the digital signal of the controller 144 into an analog signal. In addition, the output unit 146 may further include an amplifier for amplifying the output of the digital-to-analog converter. The door control signal output from the output unit 146 is used to activate the driving unit to open and close the door. In this case, the driving unit may be driven in a toggle or forward / backward manner to open or close the door by the door control signal.

The antenna 148 is connected to the control unit 144, receives a signal from the reader through the relay unit, and transmits a signal from the control unit 144 to the reader side.

Meanwhile, the antenna 148 of the RFID tag 140 may be installed to electromagnetically couple with an antenna (not shown) in the driving unit. In this case, the driving unit may be implemented to include a control unit for controlling the operation switch or the power switch on or off or forward / backward in accordance with the signal received by its antenna. Here, the driving unit may include a motor operated by itself or an external power source. In another aspect, the RF tag 140 and the driver may be implemented such that the output of the digital-to-analog converter of the RFID tag 140 is applied to a contact point that induces activation or operation of a power switch of the driver. In that case, it is preferable that the RFID tag 140 is integrally coupled to the driving unit.

5A is a schematic block diagram of an intelligent switchboard according to another embodiment of the present invention. FIG. 5B is a partial front view for explaining an example of the intelligent switchboard of FIG. 5A.

Referring to FIG. 5A, the intelligent switchboard 100a includes an enclosure 110a having one or more doors 120a, a driver 130a, and a radio recognition tag 140a. The door 120a is opened and closed by the operation of the driver 130a. The intelligent switchboard 100a according to the present embodiment remotely controls the at least one door 120a by the driving unit 130a installed at the outside of the door 120a and the wireless recognition tag 140a installed at the outside of the door 120a. One or more doors 120a of the switchboard 100a are configured to be opened or closed individually or simultaneously.

As an example, as shown in FIG. 5B, the intelligent switchboard 100a includes at least three doors 120a. The three doors 120a are closed when the switchboard 100a is viewed from the front. When the centrally closed door 120a is referred to as a second door, a radio recognition tag 140a is attached to an outer upper end of the second door 120a. The driving unit (see 130 of FIG. 1B) is provided inside the second door 120a or inside the switchboard 100a.

The radio recognition tag 140a may have a configuration substantially the same as that of the radio recognition tag 140 shown in FIG. 4. The door control signal output from the RFID tag 140a is transmitted to the driver through a wire, for example, a coaxial cable 150a, which connects the RFID tag 140a to the driver. The coaxial cable 150a extends from the outside to the inside of the switchboard 100a via the through hole of the second door 120a.

According to the configuration of the above-mentioned switchboard, the wireless recognition tag 140a installed outside the switchboard 100a, the coaxial cable 150a for transmitting the door control signal of the wireless recognition tag 140a to the drive unit inside the switchboard 100a, and The door of the switchboard may be remotely controlled by the coupling structure of the driving unit for operating the locking device coupled to the key assembly (not shown) of the door 120a. That is, according to the present exemplary embodiment, at least one door or all doors of the switchboard may be remotely controlled in a closed or open mode by using a wireless reader located outside the switchboard.

6A is a schematic block diagram illustrating an intelligent switchboard according to another embodiment of the present invention. FIG. 6B is a front view for explaining an example of the intelligent switchboard of FIG. 6A.

Referring to FIG. 6A, the intelligent switchboard 100b includes an enclosure 110b having one or more doors 120b, a driver 130b, and a radio recognition tag 140b. The door 120b is opened and closed by the operation of the driver 130b. The intelligent switchboard 100b according to the present embodiment remotely controls the at least one door 120b by the driving unit 130a and the radio recognition tag 140a installed on the outside of the door 120b. ) Can be opened or closed individually or simultaneously.

As an example, as shown in FIG. 6B, the intelligent switchboard 100b includes at least three doors 120b. When viewed from the front of the switchboard 100b, the three doors 120b are closed. When the centrally closed door 120b is referred to as the third door, the driving unit 130b and the radio recognition tag 140b are installed at an outer upper end of the third door 120b.

The radio recognition tag 140b may have a configuration shown in FIG. 4. The door control signal output from the radio recognition tag 140b is transmitted to the driver 130b through a wire, for example, a coaxial cable 150b, connecting the radio recognition tag 140b and the driver.

According to the configuration of the above-described switchboard, the drive unit 130b and the radio recognition tag 140b installed outside the switchboard 100b, the drive unit for operating the locking device coupled to the key assembly (not shown) of the door 120b ( 130b) and the door of the switchboard may be remotely controlled by the wireless recognition tag 140b which supplies the door control signal to the driver 130b. That is, according to the present exemplary embodiment, at least one door or all doors of the switchboard may be remotely controlled in a closed or open mode by using a wireless reader located outside the switchboard.

As described above, the preferred embodiment of the present invention has been disclosed through the detailed description and the drawings. The terms are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this specification. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100, 100a, 100b: intelligent switchboard
110, 110a, 110b: enclosure
120, 120a, 120b: door
130, 130a, 130b: drive section
140, 140a, 140b: radio recognition tags
160: signal relay

Claims (10)

In the switchgear which stores the mechanical mechanism which distributes electric power,
An enclosure having an inner space in which the mechanical mechanism is disposed and having an opening at one side;
A door coupled to the enclosure for opening and closing the opening of the enclosure;
A driving unit disposed to apply a mechanical force to the door to open and close the door; And
And a wireless recognition tag connected to the driving unit and outputting a door control signal to the driving unit according to a command of an external device. The method of claim 1,
The driving unit and the radio recognition tag is a ubiquitous switchgear is disposed outside the enclosure or the door. The method of claim 1,
A ubiquitous switchgear further comprising a coaxial cable passing through the enclosure or the door, interconnecting the driving unit disposed inside the enclosure or the door, and the wireless identification tag disposed outside the enclosure or the door. . The method of claim 1,
And a relay antenna disposed to penetrate the enclosure or the door in order to relay signal transmission and reception between the RFID tag disposed inside the enclosure or the door and a RFID reader positioned outside the enclosure or the door. Ubiquitous switchgear. The method of claim 4, wherein
The relay antenna,
A first antenna inductively coupling with the antenna of the RFID tag;
A second antenna disposed away from the first antenna and electromagnetically coupled to the antenna at the reader; And
A wire that connects the first and second antennas to form a single closed loop, and includes a wire that transmits induced current generated in the first and second antennas to the second and first loop antennas, respectively. Ubiquitous switchgear. 6. The method of claim 5,
Ubiquitous switchgear further comprises a fixture for fixing the relay antenna to the enclosure or the door. The method of claim 1,
The radio recognition tag,
A storage unit for storing information about the switchboard or the door;
A control unit communicating with an external device and controlling an output of information stored in the storage unit;
An output unit connected to the control unit and the driving unit and outputting a door control signal to the driving unit under control of the control unit; And
Ubiquitous switchgear comprising an antenna connected to the control unit. The method of claim 7, wherein
The wireless recognition tag has a patch form, ubiquitous switchgear is attached to one side of the drive unit. The method of claim 7, wherein
The output unit ubiquitous switchgear comprising a digital analog converter for converting the digital signal of the control unit into an analog signal. 10. The method of claim 9,
An output of the digital analog converter is a ubiquitous switchgear is applied to a contact for inducing the operation of the power switch of the drive unit.

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