KR20180122577A - Switchboard - Google Patents

Abstract

A switchboard including an incoming panel of the present invention relates to facilities in which machine tools are installed for power reception or distribution of high-voltage or special high-voltage electricity to a power plant or a substation. More specifically, an intelligent switchboard comprises: a drive unit in which a door is coupled to the switchboard and which locks the door; a wireless recognition tag connected to the drive unit and outputting a door control signal to the drive unit in response to an instruction from an external device; and a relay unit relaying signal communication between the wireless recognition tag and a wireless recognition reader located outside the enclosure or the door. The relay unit includes a first antenna coupled to one end of a coaxial cable inside the enclosure and a second antenna coupled to the other end of the coaxial cable outside the enclosure. The first antenna and the second antenna form one closed loop by the coaxial cable inside and outside the enclosure.

Description

Intelligent Switchboard {SWITCHBOARD}

Switchboards (including water-fronts) are facilities in which the corresponding machinery and equipment are installed for power supply or distribution of high-voltage or special high-voltage electricity in power stations, substations, switchboards or the like.

The switchboard is protected by a metal box so that only the administrator can handle the internal mechanical devices such as the high-pressure inlet switch and the breaker. Furthermore, since the switchboard is exposed to extreme high-voltage and corresponding high-current atmosphere, the operator handling the switchboard must perform work and maintenance according to safety regulations. Reference may be made to Korean Patent Registration No. 1154009 (May 31, 2012).

The operator shall open the door of the switchboard to record the results of meter reading of various instruments close to the switchboard or to check the inside of the switchboard. In case of an accident such as open, short, or ground fault, The operator may have to operate switchgear or circuit breakers in the switchboard in order to replace the mechanical equipment inside the switchboard.

At this time, in order to open one or more doors or doors of a large number of doors provided in one or more switchboards, it is necessary to open each door by finding a corresponding key for one or more specific doors in a key bundle or a key box, do.

In view of the above, the switchboard of the present invention provides an switchboard capable of remotely controlling the door, thereby assisting the operator in safely and quickly achieving the operation performed on the switchboard.

According to another aspect of the present invention, there is provided an intelligent switchboard comprising: an enclosure having an internal space in which a mechanical mechanism of an A / D board is disposed and having an opening at one side; a door coupled to the enclosure for opening and closing an opening of the enclosure; And a wireless recognition tag which is disposed inside the enclosure or door and is connected to the driving unit and outputs a door control signal to the driving unit in response to an instruction from the external device .

The relay unit includes a first antenna that is coupled to one end of the coaxial cable inside the enclosure, and a second antenna that is connected to the first antenna and the second antenna, And a second antenna coupled to the other end of the coaxial cable.

The first antenna and the second antenna form one closed loop by a coaxial cable inside and outside the enclosure. The RFID tag communicates with an external device through a storage unit for storing information on the switchboard or the door, and is connected to a control unit for controlling the output of information stored in the storage unit, a control unit, and a driving unit. An output section for outputting to the driving section; And an antenna connected to the control unit.

According to the effect provided by the switchboard configuration of the present invention,

It is possible to remotely monitor the door state, to selectively open or close only the desired door by remote control, and to open or close all the doors at once if necessary.

Therefore, it is possible to improve the operation and convenience of the door and the operation of the door, and to improve the stability by preventing the electric shock of the worker due to the contact with the switchboard, and by automatically detecting the state of the distribution line and wirelessly transmitting the detected information, The function of the automation control system can be improved.

It is also possible to realize the ubiquitous environment and the implementation of the switchboard in the grid environment by automatically detecting the state of the distribution line before power-on and transmitting the detected information through the wireless recognition system.

1A is a block diagram showing a method of operating an electric distribution board.
Figure 1B is a front view of the Figure 1 A switchgear embodiment.
FIG. 2 is a view for explaining the operation principle of the signal relay unit of the switchboard of FIG. 1A.
3 is a cross-sectional view of the signal relay section of the embodiment of FIG.
4 is a block diagram illustrating an embodiment of a wireless recognition tag of FIG.
5A is a schematic representation of a block diagram showing an electric distribution board of another embodiment.
Figure 5B is a front view of the embodiment of Figure 5A switchgear.
6A is a schematic block diagram showing a switchboard of another alternative embodiment.
Figure 6B is a front view of the Figure 6A switchboard siding example.
Figs. 1A to 6B relate to the prior art,
7 is a cross-sectional view of an extended embodiment of a signal relay.
8 is a state diagram illustrating the operation of FIG.
Fig. 9 is a state diagram illustrating an operation principle causing an operation.

First, the matters related to the prior art will be described more specifically. 1B, the switchboard 100 includes a door 120. When the switchboard 100 is viewed from the front, the two doors 120 located at the center and the right are closed, and one door 120 Is open. 1A, the switchboard 100 includes an enclosure 110 having one or more doors 120, a driving unit 130, a wireless recognition tag 140, and a signal relay unit 160. The door 120 is opened or closed by the operation of the driving unit 130, and can be opened or closed individually or simultaneously by remotely controlling the one or more doors 120.

The first door 120 is coupled to the enclosure 110 to open and close the opening of the enclosure 110 where the mechanical devices are disposed in the internal space. A locking device 125 is coupled to one side 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 is coupled to the driving part 130. In the embodiment, the driving unit 130 is attached to the inside of the enclosure 110.

The locking device 125 includes a first shaft reciprocating in a horizontal direction by a physical force such as a rotational motion or a linear reciprocating motion of the driving unit 130 and a second shaft reciprocating in a vertical direction by the movement of the first shaft. . In this case, one end of the first shaft is coupled to the driving 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 shaft rotates the key assembly 121 such that the key assembly 121 can be engaged in the closed position in the enclosure 110 or separated in an open state. 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 121 coupled to one end of the locking device 125 is opened The first door 120 may be opened or the first door 120 may be closed so that the key assembly 121 is switched to the closed state.

In addition, the switchboard 100 according to the embodiment can perform wireless recognition communication between a tag located inside the switchboard 100 and a reader located outside the switchboard 100, even though the metallic enclosure 110 intercepts the wireless recognition communication . Referring again to FIG. 1B, the switchboard 100 includes a wireless recognition tag 140 connected to the driving unit 130. In the embodiment, the wireless recognition tag 140 outputs information pre-stored by an instruction of the reader and outputs a signal (for example, a door control signal) for controlling the door to the driving unit 130 do. The wireless recognition tag 140 may be connected to the driver 130 via a coaxial cable 150.

The RFID tag 140 is located inside the switchboard 100, so that the communication with the reader can be blocked by the metallic enclosure 110. [ In order to prevent this, the switchboard 100 of the embodiment has a signal relay unit 160 which extends through the door 120 and a part of the enclosure 110 and is extended between the door 120 and the outside and the inside of the enclosure . The signal relay unit 160 may include a relay antenna installed to extend the communication distance between the RFID tag 140 and the reader. 2, the signal relay unit 160 includes a first antenna 162, a second antenna 164, and a wire 166. [ The signal relaying unit 160 is disposed such that the wireless identification tag disposed inside the switchboard and the wireless identification reader positioned outside the switchboard are coupled to each other through electromagnetic induction coupling with the metallic enclosure without interference from the communication.

More specifically, the first antenna 162 and the second antenna 164 are each configured to form a self-loop antenna. The first and second antennas 162 and 164 are connected to each other by a 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 cabinet for transmitting and receiving signals to and from the wireless recognition tag and the second antenna 164 is disposed outside the cabinet for transmitting and receiving signals to and from the wireless recognition reader . The first antenna 162 may be located adjacent to the wireless recognition tag due to the limitation of the communication distance.

An operation process of the signal relay unit 160 for relaying communication between a wireless recognition tag (hereinafter, simply referred to as a tag) 140 and a wireless recognition reader (hereinafter simply referred to as a reader) 200 will be described. The wireless recognition tag 140 includes a device body 145 and an antenna 148 connected to the device body 145. The reader 200 is a reader and / writer function, and an antenna 204 connected to the apparatus main body 202. It is to be noted that the apparatus main body 202 shown in FIG.

When a signal is transmitted from the reader 200 to the tag 140 side, the signal of the reader 200 is blocked by the enclosure and can not 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 the electromagnetic induction action of 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 via the wiring 166. The induced current is transmitted from the first antenna 162 to the electromagnetic wave, And is received by the control unit through the antenna of the tag 140 inside the power distribution box as a signal.

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 can not be directly transmitted to the reader. However, an induced current is generated in the first antenna 162 of the signal relay unit 160 by an electromagnetic induction action of the electromagnetic wave transmitted from the tag antenna (see 158 in FIG. 4). The induced current is transmitted from the first antenna 162 to the second antenna 164 via the wiring 166. The transmitted induced current is converted into an electromagnetic wave by the second antenna 164, Signal to the reader outside the switchboard. A substantially direct communication channel can be formed between the tag 140 and the reader through the signal relay unit 160 installed to connect the inside and the outside of the metallic enclosure of the switchboard.

The signal relay unit 160a according to FIG. 3 includes a first antenna 162a, a second antenna 164a, a coaxial cable 166a, and a coupling element j. The engaging element (j) can be an embodiment of the fastener (168). The first antenna 162a includes a helical wire forming 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 helical wire forming 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 in Fig. The coaxial cable 166a passes through a portion of the switchboard, e.g., a predetermined portion of the door, and is fixedly coupled to the door by a fixture 188. [ The coaxial cable 166a is disposed at the center of the fixture 188 and has a connector (not shown) coupled to the first connector 161 of the first antenna 162a and a connector And another connector coupled to the second connector 163 may be provided, respectively.

4 includes a storage unit 142, a control unit 144, an output unit 146, and an antenna 148. [ The storage unit 142 stores information about the switchboard or the door. The storage unit 142 may be implemented as a semiconductor memory in the form of a microchip. The control unit 144 is connected to the storage unit 142 and communicates with an external device (reader) located outside the switchboard and controls the output of information stored in the storage unit 142. The control unit 144 may be implemented as a single integrated circuit chip 145a together with the storage unit 142 and the output unit 146. [ The integrated circuit chip 145a of the wireless recognition tag 140 may correspond to the device body 145 of FIG. The output unit 146 may include a digital-to-analog converter for converting the digital signal of the controller 144 into an analog signal. The door control signal outputted from the output unit 146 activates the driving unit to open and close the door, and the driving unit can be driven by a toggle method or a forward / backward method to open or close the door by a door control signal .

The antenna 148 is connected to the control unit 144 and receives a signal from the reader via the relay unit and sends the signal from the control unit 144 to the reader. Meanwhile, the antenna 148 of the wireless recognition tag 140 may be installed to induce electromagnetic induction coupling with the antenna in the driving unit. In this case, the driving unit may be provided with a control unit for controlling the operation switch or the power switch on / off or forward / backward in accordance with the signal received by the antenna itself, and the driving unit may include a motor operated by itself or an external power source have. Alternatively, the wireless recognition tag 140 and the driving unit may be implemented such that the output of the digital-to-analog converter of the wireless recognition tag 140 is applied to a contact that induces activation or operation of the power switch of the driving unit.

5A, the switchboard 100a includes an enclosure 110a having one or more doors 120a, a driver 130a, and a wireless recognition tag 140a. The door 120a is opened and closed by the operation of the driving unit 130a. The switchboard 100a according to the embodiment can control one or more doors 120a remotely by a driving unit 130a provided on the outside of the door 120a and a wireless recognition tag 140a provided on the outside of the door 120a, 100a may be opened or closed individually or simultaneously at one or more doors 120a. In Fig. 5B, the switchboard 100a has at least three doors 120a. When the switchboard 100a is viewed from the front, the three doors 120a are closed. When the central closed door 120a is referred to as a second door, a wireless recognition tag 140a is attached to the outer upper end of the second door 120a. The driving unit (see 130 in FIG. 1B) is provided inside the second door 120a or inside the switchboard 100a.

The wireless recognition tag 140a may have the same configuration as the wireless recognition tag 140 shown in FIG. The door control signal output from the wireless recognition tag 140a is transmitted to the driving unit via a wire, for example, a coaxial cable 150a, which connects the wireless recognition tag 140a and the driving unit. The coaxial cable 150a extends from the outside of the switchboard 100a to the inside via the through hole of the second door 120a. The coaxial cable 150a for transmitting the door control signal of the wireless identification tag 140a to the driving unit in the switchboard 100a and the coaxial cable 150a for transmitting the door identification signal of the door 120a The door of the switchboard can be remotely controlled by the coupling structure of the driving unit for operating the locking device coupled to the key assembly (not shown). That is, according to the embodiment, at least one door or all the doors of the switchboard can be remotely controlled in the closed or open mode by using the wireless recognition reader located outside the switchboard.

6A, the switchboard 100b includes an enclosure 110b having one or more doors 120b, a driver 130b, and a wireless recognition tag 140b. The door 120b is opened and closed by the operation of the driving unit 130b. The switchboard 100b according to the embodiment can control the door 120b of the switchboard 100b by remote control of one or more doors 120b by the drive unit 130a and the wireless recognition tag 140a provided outside the door 120b. And can be opened or closed individually or simultaneously. As shown in Fig. 6B, the switchboard 100b has at least three doors 120b. When the switchboard 100b is viewed from the front, the three doors 120b are closed. When the central closed door 120b is referred to as a third door, a driving part 130b and a wireless recognition tag 140b are installed at the upper end of the outer side of the third door 120b.

The wireless recognition tag 140b may have the configuration shown in FIG. The door control signal output from the wireless recognition tag 140b is transmitted to the driving unit 130b via a wire, for example, a coaxial cable 150b, which connects the wireless recognition tag 140b and the driving unit. According to this configuration, the driving unit 130b and the wireless identification tag 140b provided outside the switchboard 100b include a driving unit 130b for operating a locking device coupled to a key assembly (not shown) of the door 120b, And a wireless recognition tag 140b for supplying a door control signal to the driving unit 130b.

The following is directly related to the present invention. In order to perform an operation such as checking an inspection result of various instruments in the switchboard 100 or operating a switch or a breaker, the door 120 of the switchboard 100 Which is reinforced for convenience in connection with opening or closing by remote control.

The operator can remotely control the door 120 to open the door 120. If the number of the switchboards 100 to be managed is large enough to manage the specific switchboard 100, It is not easy to immediately find the door 120 of the switchboard 100 that matches the switchboard 100 that sends the door control signal among the numerous switchboards 100 in the field. In particular, if a manager changes or there are a lot of obstacles to work on the scene, you will have more difficulties than you think.

Conversely, it is a great effort, time, and inconvenience to check the locking state of the doors 120 of a plurality of the switchboards 100 when withdrawing from the work site after completing the work, And a means and a method for confirming the locked state at a glance.

In addition, when the work of many sites is concentrated, it is possible to forget which door 120 of the switchboard is locked, which door 120 is not locked, and whether each door 120 is opened or closed for each door 120.

In this connection, it is necessary to check whether the doors 120 of the switchboard 120 are locked (or opened or closed). In this regard, although a method through construction of an electrical signal is possible, since there is a possibility of occurrence of an error, a functional part operation, etc. in the process of performing an electrical signal process in a long term or a harsh environment, A mechanical and physical method that naturally operates in accordance with the opening and closing of the door 120 is provided so that the opening and closing can be ensured most certainly.

1B, the locking device 125 of the switchboard 100 includes a reciprocating shaft 126 configured to reciprocate (move and operate) by a physical force such as a rotational motion or a linear reciprocating motion of the driving unit 130 . The reciprocating shaft 126 includes a first shaft 126a moving in the horizontal direction and a second shaft 126b moving in the vertical direction by the movement of the first shaft 126a. The reciprocating shaft 126 has a motion element 126c. In Fig. 9, the reciprocating motion a0 of the reciprocating shaft 126 is configured to physically (mechanically) affect other added components.

The example of FIG. 9A is a case in which a body of the first shaft 126a is provided with a motion element 126c. Here, the motion element 126c is provided in such a manner that a reciprocating shaft cam 126c1 having a sloped slope is formed above the body of the first shaft 126a. Next, the reciprocating shaft cam 126c1 is provided with an actuator 127 having a standing vertical bar-shaped body 127a with its lower end 127c abutting against and abutting with a slip flat 127b at its upper end. Accordingly, when the reciprocating shaft cam 126c1 is horizontally moved (a01) together with the first shaft 126a, inevitably, the operator 127 which contacts the inclined surface of the reciprocating shaft cam 126c1 is pushed upward, So that the vertical motion a1 of the operator 127 is caused. At this time, a configuration may be added to the lower end of the actuator 127 to provide a rotation shaft and a roller 127c1 to reduce friction with the reciprocating shaft cam 126c1 so as to ensure smooth operation and to axially couple the roller to the rotation shaft.

In the present invention, the attachment (or bonding) is performed by a method such as adhesion, welding, flange bonding, binding through a bracket, screw / bolt tightening, and the like.

An example of FIG. 9B is the case where the second axis 126b is provided with a motion-mediating element 126c. In this case, in particular, the second shaft 126b can be reliably confirmed whether the second shaft 126b has been operated, and the reciprocating motion a02 (a02) of the second shaft 126b is transmitted to the key assembly 121 So that the key assembly 121 reliably shows the unlocked state of the door 120 because the key assembly 121 is engaged to the enclosure 110 in a closed state or separated in an open state.

To this end, in FIG. 9B, the motion element 126c is provided with a horizontal rod-shaped axial extension rod 126c2, which is horizontally extended (or attached) at one end from the body of the second shaft 126b. Next, the other end of the shaft extension rod 126c2 is provided with an actuator 127 extending substantially perpendicularly. Here, the operator 127 has a slip plate 127b at the upper end of the vertical bar-shaped body 127a, and the lower end thereof is fixed to the upper end of the axis extending rod 126c2. With such a configuration, the shaft extension rod 126c2 moves upward and downward along with the vertical movement of the second shaft 126b. At this time, the operator 127 provided at the other end of the axis extension rod 126c2 necessarily performs the vertical movement in the same manner.

Next, in conjunction with the example of FIGS. 7 and 8, it will be seen how the vertical up and down motion of the operator 127 will represent the opening and closing states of the door 120, with respect to the additional configuration.

7, a slip flat plate 127b is provided at the upper end of the actuator 127, the bottom surface of which is fixed. A cable vertical extending element 167 is provided at one end of the coaxial cable 150 located inside the enclosure 110 and connected to the first antenna 162a and having a body 167a which takes the form of a vertical rod standing down do. That is, the upper end of the cable vertical extending element 167 is fixed under one end of the coaxial cable 150. Here, the coaxial cable 150 should be constructed so as to be stacked on a hard skin such as a metal pipe so that the waist of its body does not bend, and has a rotation axis element 170, such as a seesaw or lever, in the center of its body. The cable vertical extending element 167 is arranged so that its lower end is in contact with the upper surface of the slip plate 127b of the operator 127. The upper surface of the slip plate 127b is slidably made to slip in the horizontal direction while pushing the lower end of the cable vertical extending element 167 in the vertical direction.

The lower end of the cable vertical extending element 167 may be provided with a mass 167b which acts as a weight and is made of a material such as lead having a large mass and the role of the mass 167b is to move the operator 127 down So that the cable vertical extending element 167 moves simultaneously downward. At this time, the lower end of the mass body 167b replaces the lower end of the cable vertical extending element 167, and is slidably slidable in the horizontal direction of the slip flat plate 127b.

The tension spring sp having one end fixed to the body 167a of the cable vertical extending element 167 and the other end fixed to the door 120 can be provided with an initial tension by a method other than the mass 167b. Thus, when the operator 127 is moved downward, the elastic force of the tension spring sp pulls the cable vertical extending element 167 toward the door 120. Here, either one of the tension springs sp and the mass 167b may be selectively used, or they may be used together to complement each other to enhance the effect thereof.

There is provided a sphere spherical sphere shaft 171b having a hole (passage) penetrating in relation to the rotation axis element 170 of the coaxial cable 150. [ In the example of Fig. 7, the coaxial cable 150 is interposed in the middle of its body through the hole of the sphere shaft 171b. The spear bearing 171a is provided with an inner periphery corresponding to the outer periphery of the spear axis 171b and covers the outer periphery of the spear axis 171b so that the rotation axis of the seesaw It plays a role. The outer periphery of the sphere shaft 171b is supported by the inner periphery of the sphere bearing 171a and both ends (one end and the other end) of the coaxial cable 150, which is centered on the sphere shaft 171b, (Lever) motion is freely combined. For ease of assembly, the spear bearing 171a may be manufactured in such a way that the spear bearing 171a is divided into two portions in a state of being cut in a cross section, and then the two divided portions are adhered to each other after interposing the spear shaft 171b. In addition, lubricating oil can be supplied to the contact surfaces of the spear shaft and the spear bearing so that the seesaw motion can be smoothly performed. As another embodiment of the engaging element j, a combination of the sphere bearing 171a bearing the sphere shaft 171b and the sphere shaft is provided.

Consequently, the coaxial cable 150 passes through a predetermined portion of the door 120 through the rotary shaft element 170. That is, the coaxial cable is interposed in the middle of the spear shaft 171b, the spear shaft 171b is axially coupled to the spear bearing 171a, and the spear bearing 171a is pierced through a predetermined portion of the door 120 And is fixed to the hole. In this way, the coaxial cable 150 is coupled to the door 120 of the switchboard 100 by the method of axial coupling.

Alternatively, the marking element 175 may be constructed by adding a marking element 175. The marking element 175 may be fixed to the other end of the coaxial cable 150 located outside the enclosure 110, And a marking 175b fixed to an end of the marking support 175a. In Fig. 7, a marking support 175a in the form of extending down the end of the coaxial cable 150 is illustrated.

1B, Fig. 7 and Fig. 8, the operation state after the above-described configuration is provided will be described in more detail.

1B, the locking device 125 has a reciprocating shaft 126 which reciprocates in the horizontal direction by the driving unit 130. The reciprocating shaft 126 has a first shaft 126a and a first shaft 126a And a second shaft 126b reciprocating in the vertical direction by the second shaft 126b. 9, according to the reciprocating linear motion of the reciprocating shaft 126, the actuator 127 performs the vertical movement al. 8 illustrates a downward vertical movement in which the vertical movement a1 of the operator 127 moves downward. 8 shows the weight of the mass body 167b itself at the lower end of the cable vertical extending element 167 contacting the slip plate 127b at the upper end of the actuator 127 in the enclosure 110 according to the downward vertical movement al, The coaxial cable 150 rotates about the center axis of rotation of the sphere shaft 171b by the pulling force of the tensile spring sp given by the initial tension or the cable vertical extension element 173 fixed to one end of the coaxial cable (16) moves downward (a2). At this time, since the first antenna 162a is also downward, it should be disposed in consideration of position and distance so as not to contact or interfere with the wireless recognition tag 140. [

According to the above-described operation, the other end of the coaxial cable is upward (a3) as a seesaw (or lever) around the spear shaft 171b on the contrary outside of the enclosure 110. At the same time, the second antenna coupled to the other end of the coaxial cable 150 is upwardly moved (a3), and is a means for displaying information on whether or not the door 120 is locked will be. At this time, when the marking elements 175 are configured to perform upward operation together, information can be displayed more effectively. The marking of the marking element 175 may use a reflective marking. Particularly, when a reflective mark provided by 3M, which reflects or reflects hues varies depending on an observation angle, reflectivity or reflected color changes when the marking element 175 is moved upward or downward along the rotation of the coaxial cable, It is possible to more easily display whether or not the door 120 is opened or closed or locked, so that information can be quickly and accurately grasped. In this way, the operator can easily find the unlocked door 120 before the work, or can check whether the door 120 is locked after the work, at a glance, It is possible to prevent each kind of accidents that may occur in the situation.

The enclosure (110)
Coaxial cable (150)
The operator 127,
The slip flat plate 127b
Cable vertical extend ... (167)

Claims (1)

A door that is coupled to the enclosure for opening and closing the opening of the enclosure; a driving unit that is disposed to apply a mechanical force to the door locking device; and a door that is disposed inside the enclosure or door And a relay unit that is connected to the driving unit and relays signal communication between a wireless recognition tag that outputs a door control signal to the driving unit in response to an instruction from the external device and a wireless recognition reader that is located outside the door of the enclosure or door,
The relay unit includes a first antenna that is coupled to one end of the coaxial cable inside the enclosure, a second antenna that is coupled to the other end of the coaxial cable outside the enclosure, and a first antenna and a second antenna, In one closed loop,
The wireless identification tag is connected to the control unit and the driving unit. The wireless identification tag communicates with the external device and controls the output of the information stored in the storage unit. An output section for outputting a signal to the driving section, and an antenna connected to the control section
Wherein the locking device has a reciprocating shaft reciprocating by a driving part, and the reciprocating shaft comprises a second axis (126b) moving in a vertical direction.

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