Distribution board control device based on IOT

Abstract

The invention discloses an IOT (Internet of Things)-based distribution board control device. An electrical safety device according to the present invention, which has an input connection unit directly fastened to a parallel busbar and coupled in parallel to a residual-current circuit breaker, comprises: a sensor input unit interposed between a main circuit breaker and the residual-current circuit breaker, for detecting a current signal and outputting the current signal to a control unit; and a control unit that outputs a breaker control signal by comparing and analyzing state information in which a current signal detected from the sensor input unit is classified in a constant power pattern with a power pattern reference value stored in the storage unit, and that transmits the state information and whether to control the breaker to the outside. Since the structure which is directly connected to the busbar in a fastening manner is directly connected with the existing residual current circuit breaker in a parallel fastening manner, the working speed and the connection strength are high, and the effects of solving the problems of installation errors and faults can be achieved.

Description

Technical Field

[0001] The present invention relates to a distribution board, and more particularly to an IOT-based distribution board control device, which directly fastens an AC input voltage connection to a parallel connection type busbar, and fastens it in parallel to a mounting hole of an existing leakage circuit breaker, thereby outputting a control signal that can cut off the power supply of the circuit breaker using wired or wireless communication. Background Art

[0002] Generally, in order to supply power to motors and various devices on each floor, room or factory of a building, a distribution board distributes power from the bus bar of the main power supply according to each electrical load to be used, and in order to use power safely and conveniently, an electrical distribution board or electrical switchboard is manufactured and used, and a wiring circuit breaker and a leakage circuit breaker are separately built-in according to each device or each wiring circuit.

[0003] Wiring circuit breaker (MCCB, Molded case circuit breaker), also known as no-fuse circuit breaker (NFB, No Fuse Breaker), refers to a molded case circuit breaker and wiring circuit breaker. It cuts off when overload and overcurrent flow during power supply to ensure safety, and can protect the leakage of the leakage circuit breaker (ELB, Electric Leakage Breaker) line, and operate to supply power to various load devices.

[0004] Usually, the distribution board is composed of a main wiring circuit breaker and a leakage circuit breaker and a busbar electrically connecting the main wiring circuit breaker and the leakage circuit breaker in the distribution box. While realizing power supply and power cut-off, it prevents the lines connecting the circuit breakers from being exposed, thereby playing a role in preventing safety accidents such as leakage and electric shock.

[0005] However, electrical disasters continue to occur due to various factors, and the scale and extent of damage caused by electrical fires in traditional markets in various places recently are extremely large. In order to prevent such electrical disasters, leakage circuit breakers and wiring circuit breakers have been used in the past, but this method has limitations in preventing electrical disasters.

[0006] In addition, the role of the electrical safety device based on the Internet of Things (IOT) is to measure the electrical safety quality of the power supply at the installed target power consumption site and transmit it to the control server. The electrical safety quality collected by the IOT-based electrical safety device is used to prevent electrical safety-related accidents that may occur at the power consumption site.

[0007] As described above, conventional distribution boards are installed inside a box-shaped housing and are classified into embedded, exposed, and semi-embedded types according to the installation method. Multiple circuit breakers assigned to each branch circuit will operate when an abnormal situation occurs, thereby cutting off the power supplied to each branch circuit and generating an alarm by lighting an alarm lamp to inform the manager of the power monitoring system of the fact that the abnormal situation has occurred.

[0008] However, the conventional switchboard as described above has the following inconvenience: when the manager of the power monitoring system wants to open / close the circuit breaker for periodic inspection, patrol inspection, or fault inspection, etc., it is necessary to manually control opening / closing of the circuit breaker.

[0009] Therefore, in the indoor distribution box of ordinary users or the distribution board of industrial equipment, the power usage status can be monitored by common use or individual installation, and when it is judged that the power usage status has a high risk of electric shock or electrical fire due to leakage, a control device with a control function is required, which can remotely control the main wiring circuit breaker after obtaining the user's approval to prevent danger.

[0010] In addition, a control device is needed that can remotely monitor the power usage status, send status information to a control server via wireless or wired data, and connect to peripheral devices via short-range wireless communication. Summary of the invention

[0011] In order to solve these problems, the object of the present invention is to provide an IOT-based switchboard control device, which is directly fastened to a parallel bus and has an electrical safety device that can be connected in parallel with a plurality of residual current circuit breakers.

[0012] In addition, another object of the present invention is to provide an IOT-based distribution board control device, which senses the abnormal state of the line by respectively configuring a current sensor and a zero current sensor in the AC input lines of the main circuit breaker and the leakage circuit breaker, and can cut off the power supply of the main circuit breaker.

[0013] In addition, yet another object of the present invention is to provide an IOT-based switchboard control device that can output a control signal that can cut off the power supply of a main circuit breaker using wired or wireless communication.

[0014] In addition, another object of the present invention is to provide an IOT-based switchboard control device, which is configured so that the electrical safety device is mounted in a box-type casing and can be installed on the mounting hole of an existing leakage circuit breaker for use.

[0015] In addition, another purpose is to provide an IOT-based distribution board control device with control function, which monitors the power usage status by wireless or wired means, and sends status information to the control server by wireless or wired means, and when it is judged that the risk of electric shock or electrical fire caused by leakage is high, it sends data to the control server, and can remotely control the main wiring circuit breaker after obtaining the user's approval to prevent danger.

[0016] In order to solve this problem, the IOT-based switchboard control device of the present invention includes: a main circuit breaker, which is connected to the AC power source introduced into the room; two or more leakage circuit breakers, which are branched from the main circuit breaker and connected in parallel; and an electrical safety device, the main circuit breaker and the leakage circuit breaker are connected through a parallel bus or wiring wires, the input connection part of the electrical safety device is directly fastened to the parallel bus and connected in parallel with the leakage circuit breaker, including: a sensor input part, which is inserted between the main circuit breaker and the leakage circuit breaker to perform current signal a storage unit that stores event contents including a power mode reference value, a unique ID of a distribution board, and a circuit breaker record according to the control of the control unit; a control unit that compares and analyzes status information of classifying a current signal detected from a sensor input unit into a power mode of a certain value with the power mode reference value stored in the storage unit, thereby outputting a circuit breaker control signal, and transmitting the status information and whether to control the circuit breaker to the outside; and a disconnection unit that receives a circuit breaker control signal from the control unit, thereby disconnecting the power supply of the main circuit breaker.

[0017] In addition, the sensor input section is composed of a current sensor and a zero current sensor, and is respectively formed in the AC input lines of the main circuit breaker and the leakage circuit breaker.

[0018] The distribution board is composed of a box-type IOT-based distribution board equipped with various electrical equipment, including: a cable tray through-opening portion, which has through holes in the form of corresponding to the upper and lower parts of the central part of the box-type main body; storage rooms on both sides, on which electrical equipment such as a main circuit breaker, a leakage circuit breaker and an electrical safety device are installed on both sides inside the box-type main body; a door, which opens and closes the storage rooms on both sides and the central internal cable tray in front of the box-type main body, and a cut-off portion and a communication module for communicating with the outside are installed in one storage room, wherein the cut-off portion is connected to the AC power introduced into the room through the through-opening portion, and the power supply of the main circuit breaker is cut off by the main circuit breaker and the circuit breaker control signal, and a leakage circuit breaker and an electrical safety device are installed in the other storage room, wherein the leakage circuit breaker is combined with the main circuit breaker through a parallel bus or wiring wires, and the electrical safety device is installed in the mounting hole of the leakage circuit breaker and is combined in parallel with the leakage circuit breaker.

[0019] In addition, the electrical safety device includes: a shell; a pair of fixing holes, which are formed inside the shell and fixed to the upper and lower mounting holes of the leakage circuit breaker through a fixing component; a status indicator light, which is arranged on the outside of the shell and displays whether the electrical safety device has power supply, alarm and communication status; a debugging port, which is arranged at the bottom of the status indicator light; an antenna connecting part, which is arranged at the bottom of the shell; a current sensor connecting part, which is arranged at the bottom of the shell; and a circuit breaker control signal connecting part, which is arranged at the bottom of the shell, and the electrical safety device can be configured to be connected in parallel to the mounting hole of the leakage circuit breaker through a connecting component.

[0020] Therefore, according to the IOT-based distribution board control device of the present invention, since it is directly fastened in parallel with the existing leakage circuit breaker through a structure directly fastened to the busbar, the operation speed and connection strength are high, and it has the effect of solving installation errors and failure problems.

[0021] In addition, according to the IOT-based distribution board control device of the present invention, since the current sensor and the zero current sensor are respectively constructed and used on the AC output line of the main circuit breaker, the abnormal state of the line can be immediately sensed and the power supply of the main circuit breaker can be cut off, thereby having the effect of preventing safety accidents.

[0022] In addition, according to the IOT-based distribution board control device of the present invention, since the control unit of the electrical safety device can transmit the disconnection signal by wired transmission or wireless reception of the disconnection signal of the main circuit breaker, it has the effect of being directly installed on an existing circuit breaker for use.

[0023] In addition, since the electrical safety device of the present invention is configured to be mounted in a box-type housing and can be mounted on a mounting hole of an existing leakage circuit breaker, the electrical safety device can be applied to an existing circuit breaker without changing the major structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 and Figure 2 1 is a diagram showing the structure of a switchboard equipped with an electrical safety device according to an embodiment of the present invention.

[0025] Figure 3 It is an outline diagram of the electrical safety device of the present invention.

[0026] Figure 4 It is a reference diagram for explaining the connection state of the bus bar of the present invention.

[0027] Figure 5 This is an exemplary diagram showing a switchboard according to an embodiment of the present invention configured in a box-type main body. DETAILED DESCRIPTION

[0028] The IOT-based switchboard control device of the present invention comprises: a main circuit breaker connected to an AC power source introduced into a room; two or more leakage circuit breakers branched from the main circuit breaker and connected in parallel; and an electrical safety device, wherein the main circuit breaker and the leakage circuit breaker are connected by a parallel bus or wiring wires, and the input connection part of the electrical safety device is directly fastened to the parallel bus and connected in parallel with the leakage circuit breaker, and comprises: a sensor input part, which is inserted between the main circuit breaker and the leakage circuit breaker, detects the current signal and outputs it to a control unit; a storage unit that stores, according to the control of the control unit, event contents including a power mode reference value, a unique ID of the distribution board, and a circuit breaker record; and a control unit that compares and analyzes state information of classifying a current signal detected from a sensor input unit into a power mode of a certain value with the power mode reference value stored in the storage unit, thereby outputting a circuit breaker control signal, and transmitting the state information and whether to control the circuit breaker to the outside; and a disconnection unit that receives the circuit breaker control signal from the control unit, thereby disconnecting the power supply of the main circuit breaker.

[0029] The terms or words used in this specification and claims should not be interpreted restrictively as the usual or dictionary meanings, but should only be interpreted as meanings and concepts that are consistent with the technical ideas of the present invention, based on the principle that the inventor can appropriately define the concepts of the terms in order to best explain his own invention.

[0030] Throughout the specification, when a part "includes" a certain component, it means that other components may also be included, rather than excluding other components, unless otherwise specifically stated. In addition, the terms "...part", "...device", "module", "device", etc. recorded in the specification refer to a unit that processes at least one function or action, which can be implemented by a combination of hardware and / or software.

[0031] Throughout the specification, the term "and / or" should be understood to include all possible combinations from more than one related item. For example, "the first item, the second item and / or the third item" means not only the first item, the second item or the third item, but also all possible combinations from two or more of the first item, the second item or the third item.

[0032] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0033] Figure 1 and Figure 2 As a structural diagram of a switchboard equipped with an electrical safety device according to one embodiment of the present invention, Figure 1 is a diagram showing the entire system, Figure 2 It is a diagram showing the specific configuration and connection status of the electrical safety device.

[0034] On the other hand, since an electrical distribution board and an electrical switchboard are terms for the same purpose, they are labeled as distribution boards in the present invention. In addition, although the characteristics of a wiring breaker (NFB) and an earth leakage circuit breaker (ELB) are different, the present invention is equivalent to these two products, so the term is labeled as an earth leakage circuit breaker (ELB).

[0035] A wiring circuit breaker (MCCB, Molded case circuit breaker) is also called a no-fuse circuit breaker (NFB, No Fuse Breaker), which refers to a circuit breaker in a molded case, a circuit breaker for wiring, which cuts off when an overload or overcurrent flows during power supply to ensure safety. In the present invention, it serves as a main circuit breaker. In addition, an electric leakage circuit breaker (ELB, Electric Leakage Breaker) is configured to protect against leakage of the line and operate in the form of power supply to each load device. The above content is used as a premise for the description.

[0036] First, refer to Figure 1 According to an embodiment of the present invention, an IOT-based distribution board control device includes: a main circuit breaker 110; a pair of busbars 131, which are connected to the AC output line of the main circuit breaker 110; more than two leakage circuit breakers 132, which are connected in parallel to the pair of busbars 131; an electrical safety device 200, which is connected to the busbars 131 and connected in parallel to the leakage circuit breakers 132.

[0037] The main circuit breaker 110 is connected to the AC power source introduced into the room and outputs the AC input terminal. The leakage circuit breakers 132 are composed of two or more, which are branched from the main circuit breaker 110 and connected in parallel, so as to be able to protect against line leakage and operate to supply power to various load devices.

[0038] The main circuit breaker 110 and the leakage circuit breaker 132 are connected by a parallel bus bar 131 or wiring wires, and two or more leakage circuit breakers 132 are connected in parallel to the bus bar 131 .

[0039] Referring to the accompanying drawings, branches of the parallel bus 132 are respectively input into a pair of line (LINE) input terminals arranged at the upper part of each leakage circuit breaker, and the input signals are respectively applied to a pair of load (LOAD) output terminals after passing through the leakage cut-off switch, and each load (LOAD) output terminal is configured to supply power to the load device.

[0040] Generally, the LINE input terminal of the input AC voltage is connected to the output terminal of the main circuit breaker of the distribution board through a small connector and thin wiring, but since the operation is difficult during installation and the thin conductor may cause a fault, a pair of busbars 132 is used in the present invention.

[0041] from Figure 4 Referring to the reference diagram for illustrating the connection state of the busbar of the present invention, the AC output signal of the main circuit breaker 110 is applied to a pair of busbars 131 respectively, and the access ports of the pair of busbars 131 are protruding, combined through the line (LINE) inputs of each leakage circuit breaker 132, and the signal input through each line (LINE) input is applied to the load (LOAD) output terminal after passing through the leakage cut-off switch.

[0042] In the figure, the electrical safety device 200 of the present invention is connected in parallel to the tail end of the residual current circuit breaker 132, but can also be installed at the starting point or anywhere in the middle.

[0043] In other words, one of the features of the present invention is that the electrical safety device 200 is connected in parallel with the residual current circuit breaker connected in parallel to the busbar 131, so that an abnormal state can be sensed and the function of cutting off the main circuit breaker can be executed.

[0044] In addition, the electrical safety device 200 of the present invention is configured to output a circuit breaker control signal for cutting off the main circuit breaker or transmit the abnormal state to the control server by measuring the abnormal state of the power supply at the target power consumption point where the electrical safety device based on the Internet of Things (IOT) is installed.

[0045] Electrical safety devices based on the Internet of Things (IOT) use a network-based communication method that can use low-power, small-capacity data to stably utilize the services of the Internet of Things, thereby integrating ICT technology with existing distribution board technology. In this way, current transformers (CT) and zero-phase-sequence current transformers (ZCT) are used to sense load voltage and current, and overload, and the data is stored in a database to drive the circuit breaker.

[0046] This IOT-based electrical safety device 200 is configured to include an AC voltage input unit for analyzing the power supply and supplying power to the device, an input unit for connecting a current sensor and a zero current sensor, a debugging port, and output a circuit breaker control signal.

[0047] refer to Figure 2The figure shows the specific structure and connection status of the electrical safety device. The electrical safety device 200 of the present invention may include: a status indicator light 232, which displays the status of the electrical safety device; a communication unit 233, which communicates with a central control center or a terminal; a storage unit 234, which stores the inherent ID and circuit breaker records of the distribution board in a DB; a debugging port 235; and a control unit 231, which obtains the input of the sensing signals of the current sensor 1123 and the zero current sensor 114, and senses the abnormal state, thereby outputting a circuit breaker control signal 236.

[0048] Specifically, the input connection portion of the electrical safety device 200 is directly fastened to the parallel busbar 131 and is connected in parallel with the residual current circuit breaker.

[0049] At this time, since it is combined with the mounting hole of the existing leakage circuit breaker, the electrical safety device can be combined without changing the structure. However, as long as any position combined with the leakage circuit breaker is ensured, the connection can be tightened.

[0050] The electrical safety device 200 includes a sensor input unit 110 , which is interposed between the main circuit breaker 110 and the residual current circuit breaker 132 , detects a current signal and outputs it to a control unit.

[0051] The sensor input part 110 is composed of a current sensor 112 and a zero current sensor 114, which are installed on the line to detect the current and are respectively arranged on the AC input lines of the main circuit breaker and the leakage circuit breaker. The current sensor 112 should be installed on any one of the AC input lines, and the zero current sensor 114 should be installed on two lines of the AC input line to detect the arc signal.

[0052] refer to Figure 1 It can be seen that the current sensor 112 is installed at the lower end of the AC input line, and the zero current sensor 114 is set at both ends of the AC input line.

[0053] The current sensor 112 measures the current by being installed on any line at the AC output end of the main circuit breaker so as to detect short circuits caused by line leakage, ground faults, poor contact, insulation degradation, etc., and the current is measured by a common current measurement method based on Ohm's law, which may utilize a shunt resistor, or a current measurement method based on Faraday's law or a current measurement method based on the Hall effect, etc.

[0054] In addition, the current sensor can also measure the induced magnetic flux generated in the line by insulated contact with the AC input signal terminal through which the current is conducted, and operate as a single-point detection current sensor that senses the line current.

[0055] Alternatively, the current sensor can also use an image ammeter, a low-pass filter for removing harmonics, and an amplifier to measure the current value of the line.

[0056] At this time, the low-pass filter 220 should be configured to eliminate harmonics of the current so that the problem of insufficient accuracy in calculating the resistive leakage current due to poor power quality does not occur.

[0057] The zero current sensor 114 is used to measure a flat zero current interval in the arc current to detect the arc.

[0058] In order to improve the performance of arc detection, it is most important to select a current sensor that can fully reflect the arc characteristics. The signal of the appropriate frequency band can be extracted from the current waveform, and the series arc defect can be identified by comparing the characteristics and critical values ​​in the frequency band within 2 to 4 kHz.

[0059] Methods for detecting a series arc may include: a method of detecting by frequency analysis, a method of detecting by analyzing a phase difference between voltage and current, a method of detecting by analyzing a rate of change of a current peak value, and a method of detecting a zero current interval duration.

[0060] The arc fault detection algorithm detects by comparing a portion of the characteristics of the voltage or current waveform with a predetermined critical value. The critical value can be calculated based on the magnitude of the voltage waveform or the rate of change of the current. Most of the appropriate frequency components are extracted from the voltage or current waveform of the power line, and the critical value is determined using the extracted frequency components. The waveform is analyzed using discrete wavelet transform (DWT), and the sum of the absolute values ​​of the sub-bands for one periodic signal is calculated, and the arc is detected by comparing the calculated sum with the critical value.

[0061] In order to improve the performance of arc detection, it is most important to select a current sensor that can fully reflect the arc characteristics. The signal of the appropriate frequency band can be extracted from the current waveform, and the series arc defect can be identified by comparing the characteristics and critical values ​​in the frequency band within 2 to 4 kHz.

[0062] The output signal of the current sensor 112 and the output signal of the zero current sensor 114 are connected through a cable and electrically connected to the control unit 231 of the electrical safety device 200 .

[0063] The storage unit 234 is configured to store event contents including the power mode reference value, the unique ID of the switchboard, and the disconnection record under the control of the control unit 231, and to store the disconnection record and the like in the DB for each unique ID of the switchboard.

[0064] The status indicator light 232 is composed of a lamp so as to indicate the status of the electrical safety device under the control of the control unit 231 .

[0065] The status indicator lamp 232 may be configured with a power indicator lamp for indicating power on / off, an alarm indicator lamp for indicating an alarm, and a communication indicator lamp for indicating a communication status.

[0066] refer to Figure 4 It can be seen that the power indicator light is arranged at the top, the communication indicator light is arranged at the bottom, and an alarm indicator light is arranged in the middle.

[0067] A cut-off part is included, which receives a circuit breaker control signal from a control part and cuts off the power supply of the main circuit breaker.

[0068] The control unit 231 compares and analyzes the state information of the current signal detected from the sensor input unit 110 classified into a certain value of power mode with the power mode reference value stored in the storage unit 234. If an abnormal state is sensed, the circuit breaker control signal B is output to the main circuit breaker, and the power supply of the main circuit breaker is cut off.

[0069] In the drawing, it is exemplified that the cutoff signal is applied to the cutoff device through wire, but the cutoff signal may be transmitted through wireless communication according to the installation environment.

[0070] At this time, the circuit breaker control signal B is transmitted to the circuit breaker 117, which controls the disconnect switch 116 to cut off the power supply.

[0071] Since the configuration of cutting off the signal by cutting off the control signal is common, its specific description is omitted.

[0072] With this cut-off function, when a serious defect occurs in the user's electrical safety, a signal for controlling the circuit breaker can be generated through a remote signal to control the circuit breaker, thereby preventing disasters caused by electricity.

[0073] In addition, when an event occurs, the control unit 231 transmits the corresponding status information and whether the circuit breaker is controlled to the external central control center 400 for management through the communication unit 233, and confirms the event details by communicating with the terminal 500.

[0074] To this end, since the communication unit 233 communicates with the control server 400 remotely, network communication is performed through the network 310, and the terminal 500 can be an administrator terminal equipped with an application related to the present invention, so the current status of the distribution board can be confirmed on site through short-range wireless communication 320.

[0075] Of course, the communication unit 233, the control server 400, and the terminal 500 can communicate through wired communication.

[0076] Network 310 includes wireless local area network (WLAN), wireless fidelity (Wi-Fi), wireless fidelity direct (Wi-Fi Direct), Digital Living Network Alliance (DLNA), wireless broadband (WiBro), world interoperability for microwave access (WiMAX), high speed downlink packet access (HSDPA), high speed uplink packet access (HSUPA), long term evolution (LTE), long term evolution upgraded version (LTE-A), etc., and within the scope of Internet technologies not listed above, data will be sent and received according to at least one wireless Internet technology.

[0077] Near Field Communication (NFC) is used for short range communication. It can use Bluetooth TM ), Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Near Field Communication (NFC), Wireless-Fidelity (Wi-Fi), Wi-Fi Direct, Wireless Universal Serial Bus (Wireless USB) technologies to support short-range communication. This short-range wireless communication can support wireless communication between the terminal 500 and a wireless communication system, between the terminal 500 and other mobile terminals, or between the network where the terminal and other terminals (external servers) are located through a short-range wireless communication network (Wireless Area Networks). The short-range wireless communication can be a short-range wireless personal communication network (Wireless Personal Area Networks).

[0078] In addition, the electrical safety device 200 has a debugging port 235. When the administrator's terminal 500 approaches, the terminal's application is automatically driven and event details are displayed. When the terminal is connected to the debugging port 235, debugging is performed to find errors and take measures.

[0079] In addition, the control server 400 serves as a server of the control center. In the present invention, it stores event contents including a power mode reference value that can determine whether there is an abnormality, the inherent ID of the distribution board, and a circuit breaking record. If the inherent ID and status information that classifies the current signal detected from the sensor input part of the corresponding distribution board into a power mode of a certain value are received from the distribution board, the information is compared with the stored power mode reference value to detect whether there is an abnormal state in the line and wait. If the disconnection information is received from the corresponding distribution board, the received disconnection information is stored as a circuit breaking record in the inherent ID of the distribution board.

[0080] In addition, if the control server 400 does not receive the cut-off information from the distribution board within a certain period of time, a control signal to cut off the main circuit breaker is sent to the distribution board through the network to cut off the main circuit breaker, and the cut-off result is transmitted again from the distribution board to the control server using Ack to confirm that the received cut-off has been completed.

[0081] In other words, when the control server 400 receives the inherent ID and status information classified by power mode from the control unit, it is compared with the stored power mode reference value and a circuit breaker control signal is generated. Then, if the circuit breaker control signal is received from the control unit, it is stored as event content. If the circuit breaker control signal is not received from the control unit, the circuit breaker control signal is sent to the control unit to control the disconnection of the main circuit breaker.

[0082] The terminal 500 is equipped with a short-range wireless communication module and stores applications related to the present invention. When marked through the short-range wireless communication of the distribution board, the terminal automatically drives the stored application and receives and displays data such as the inherent ID and circuit breaker record from the distribution board. When the debug terminal is connected to the debug port of the distribution board, debugging is performed and operation is performed to detect program errors.

[0083] Hereinafter, the configuration of the electrical safety device will be described in detail with reference to the accompanying drawings.

[0084] Figure 5 As an appearance diagram of an electrical safety device according to an embodiment, as shown in the figure, the electrical safety device of the present invention is mounted in a housing 221 in a form that can be fastened to the mounting hole of an existing leakage circuit breaker for use, and is fastened to the mounting hole through a fixing hole 222 by means of a fixing component.

[0085] A pair of fixing holes 222 are formed in the upper and lower parts of the housing 221 and are fixed to the upper and lower mounting holes of the leakage circuit breaker by a fixing member.

[0086] In addition, a status indicator light 225 is provided on one side and is disposed on the outer side of the housing 221 and is used to display whether the electrical safety device has power supply, alarm, and communication status.

[0087] The status indicator light 225 is composed of a voltage indicator light, an alarm indicator light, and a communication indicator light, and can be arranged in sequence from top to bottom.

[0088] A debugging port 235 is provided at a lower portion of the status indicator lamp 225 , and an antenna connection portion for rotatably providing an antenna is provided at a lower portion of the debugging port 235 .

[0089] In the present invention, based on the installation situation, fixing holes 222 are set up on the front of the shell, and a status indicator light is arranged in the approximate center, a debugging port 235 is set at the bottom, and an antenna 224 is set at the bottom of the debugging port.

[0090] A current sensor connection portion 226 and a circuit breaker cutoff signal connection portion 227 are formed on one side of the lower portion of the housing 221 .

[0091] The current sensor connection portion 226 is electrically connected to the sensor input portion 110 , so as to obtain input of sensing signals of the current sensor 112 and the zero current sensor 114 .

[0092] The circuit breaker cut-off signal connection unit 227 includes a terminal. The control unit 231 determines an abnormal state based on the sensing signals of the current sensor 112 and the zero current sensor 114. When it is determined to be an abnormal state, the terminal outputs a circuit breaker cut-off signal B.

[0093] Referring to the drawings, based on the central front view, left and right side views, a plan view and a bottom view are shown, and the antenna is exemplified in a state of being deployed forward.

[0094] The front portion of the shell is composed of a flat portion with a protrusion formed in the center. Fixing holes 222 combined with the mounting holes of the leakage circuit breaker are formed on the upper and lower flat portions of the shell. The antenna 224 is formed on the bottom surface of the protrusion and is configured to rotate based on the bottom surface of the protrusion.

[0095] Therefore, the antenna 224 is configured to rotate left and right within the flat surface of the front surface of the housing based on the bottom surface of the protruding portion and rotate approximately 180 degrees.

[0096] The electrical safety device, main circuit breaker and leakage circuit breaker constructed as above may be provided in a box-type main body, for example.

[0097] Figure 5This is an exemplary diagram of a switchboard in a box-shaped body according to an embodiment of the present invention. As shown in the figure, the switchboard of the present invention can be composed of a box-shaped body 11 equipped with various electrical devices.

[0098] The through opening 20 of the cable tray is formed with through holes corresponding to the upper and lower parts of the central part of the box-type main body 10 respectively, and the storage chambers 30 and 30a on both sides are formed with space portions 22 for protruding antennas of the electrical safety device, and components such as a main circuit breaker, a leakage circuit breaker and an electrical safety device are installed on both sides of the box-type main body 10 of the distribution board 100. The internal cable tray 40 is formed in the center of the storage chambers 30 and 30a on both sides, and a plurality of cable brackets connected laterally are arranged inside. The storage chambers 30 and 30a on both sides and the internal cable tray 40 can be divided by a dividing portion.

[0099] In addition, a plurality of doors 11 for opening and closing the storage chambers 30 and 30 a on both sides and the inner cable tray 40 in the center may be included on the front of the box-type body 10 .

[0100] The switchboard of this structure is composed of a box-type IOT-based switchboard equipped with various electrical equipment, and is equipped with a main circuit breaker, a leakage circuit breaker and an electrical safety device.

[0101] A cut-off portion is installed in the storage chamber on either side of the storage chambers 30 and 30a, which is connected to the AC power introduced into the room through the through opening 20, and cuts off the power of the main circuit breaker according to the main circuit breaker and the circuit breaker control signal. A leakage circuit breaker and an electrical safety device are installed in the storage chamber on the other side, wherein the leakage circuit breaker is connected to the main circuit breaker through a parallel bus or wiring wires, and the electrical safety device is installed in the mounting hole of the leakage circuit breaker and is connected in parallel with the leakage circuit breaker.

[0102] Thereafter, the antenna of the electrical safety device may be adjusted to protrude through the space portion 22 .

[0103] The switchboard constructed as described above operates as follows.

[0104] First, a fixing slot of an electrical safety device operated as an IOT-based control device is fixed in a mounting hole of an existing residual current circuit breaker by a fixing member.

[0105] Furthermore, the current sensor 112 and the zero current sensor 114 are arranged on the line, and the output signals are connected to the current sensor connection portion 226 .

[0106] Then, the cut-off portion of the main circuit breaker is configured to be electrically connected to the circuit breaker cut-off signal connection portion 227 of the electric safety device.

[0107] Of course, this assembly sequence can be appropriately changed according to the situation on site.

[0108] As described above, since the electrical safety device of the present invention can be directly connected in parallel with the existing leakage circuit breaker without significantly changing the existing distribution board, the operation speed and connection strength are high, which can solve the problems of installation errors and malfunctions.

[0109] As described above, when the installation is completed, the control unit 231 of the electrical safety device lights up the status indicator light 225 that displays the operating status of the system and senses whether there is any abnormality in the line.

[0110] The control unit 231 compares and analyzes the state information of classifying the current signal detected from the sensor input unit 110 into a power mode of a certain value with the power mode reference value stored in the storage unit 234. If an abnormal state is sensed, the circuit breaker control signal B is output to the main circuit breaker and transmitted to the circuit breaker 117 to control the disconnect switch 116 to cut off the power supply.

[0111] In addition, when the administrator's terminal 500 approaches, the control unit 231 automatically drives the terminal's application and displays event details, etc. When the terminal is connected to the debug port 235, debugging is performed to find errors and take measures.

[0112] In addition, when the control server 400 receives a unique ID and status information that classifies the current signal detected from the sensor input part of the distribution board into a certain value of power mode from the distribution board, it detects whether there is an abnormal state in the line by comparing with the stored power mode reference value and waits. When the disconnection information is received from the distribution board, the operation stores the received disconnection information as a circuit breaker record in the unique ID of the distribution board.

[0113] As described above, according to the IOT-based distribution board control device of the present invention, since it is directly fastened in parallel with the existing leakage circuit breaker through a structure that is directly fastened to the busbar, the operation speed and connection strength are high, which has the effect of solving installation errors and malfunction problems. Moreover, since the current sensor and the zero current sensor are respectively constructed and used on the AC output line of the main circuit breaker, the abnormal state of the line can be sensed immediately and the power supply of the main circuit breaker can be cut off, thereby having the effect of preventing safety accidents.

[0114] Although the present invention has described the specific examples described above in detail, it is obvious to those skilled in the art that various deformations and modifications can be made within the technical scope of the present invention. Of course, such deformations and modifications fall within the scope of the patent claims.

Claims

1. A switchboard control device based on IOT, as a switchboard control device based on IOT, comprising: A main circuit breaker connected to the AC power source introduced into the room; Two or more residual current circuit breakers branched from a main circuit breaker and connected in parallel; and an electrical safety device, characterized in that: The main circuit breaker and the residual current circuit breaker are connected by a parallel bus or wiring wires. The input connection part of the electrical safety device is directly and firmly connected to the parallel busbar and is connected in parallel with the residual current circuit breaker, including: A sensor input unit is inserted between the main circuit breaker and the leakage circuit breaker to detect the current signal and output it to the control unit; a storage unit that stores event contents including a power mode reference value, a unique ID of the switchboard, and a disconnection record under control of the control unit; a control unit that compares and analyzes status information of classifying a current signal detected from a sensor input unit into a power mode of a certain value with a power mode reference value stored in a storage unit, thereby outputting a circuit breaker control signal, and transmitting the status information and whether to control the circuit breaker to the outside; and The cut-off part receives the circuit breaker control signal from the control part, thereby cutting off the power supply of the main circuit breaker.

2. The IOT-based switchboard control device according to claim 1, characterized in that: The sensor input part is composed of a current sensor and a zero current sensor, and is respectively formed in the AC input lines of the main circuit breaker and the leakage circuit breaker.

3. The IOT-based switchboard control device according to claim 1, characterized in that: A control server is included, which is used to store event contents including power mode reference values ​​and unique IDs of distribution boards and circuit breaker records, When the control server receives the inherent ID and status information classified by power mode from the control unit, it compares it with the stored power mode reference value and generates a circuit breaker control signal. Then, if the circuit breaker control signal is received from the control unit, it is stored as event content. If the circuit breaker control signal is not received from the control unit, the circuit breaker control signal is sent to the control unit, thereby controlling the disconnection of the main circuit breaker.

4. The IOT-based switchboard control device according to claim 1, characterized in that: The switchboard consists of a box-type IOT-based switchboard equipped with various electrical devices, including: The cable tray has a through opening, which is through-hole-shaped in the form of upper and lower central portions of the box-shaped body, respectively; The storage rooms on both sides have electrical equipment such as main circuit breakers, leakage circuit breakers and electrical safety devices installed on both sides of the box-type main body; The door opens and closes the storage compartments on both sides and the central internal cable tray on the front of the box-type body. A cut-off portion is installed in a storage chamber on one side, which is connected to an AC power source introduced into the chamber through a through opening and cuts off the power of the main circuit breaker according to the main circuit breaker and the circuit breaker control signal, and a leakage circuit breaker and an electrical safety device are installed in the storage chamber on the other side, wherein the leakage circuit breaker is connected to the main circuit breaker through a parallel bus or wiring wires, and the electrical safety device is installed in the mounting hole of the leakage circuit breaker and is connected in parallel with the leakage circuit breaker.

5. The IOT-based switchboard control device according to claim 1, characterized in that: Electrical safety devices include: shell; A pair of fixing holes formed inside the housing and fixed to the upper and lower mounting holes of the leakage circuit breaker by a fixing member; A status indicator light, which is arranged on the outside of the housing and displays the power supply, alarm and communication status of the electrical safety device; A debugging port, which is arranged below the status indicator light; An antenna connection portion, which is arranged in a rotating manner at the lower part of the debugging port; a current sensor connecting portion, which is disposed at the lower portion of the housing; and The circuit breaker control signal connection part is arranged at the lower part of the housing. And the electrical safety device is connected in parallel with the mounting hole of the leakage circuit breaker through the connecting component.

6. The IOT-based switchboard control device according to claim 1, characterized in that: Also included is a terminal, which drives the application program related to the present invention. The terminal drives the application and displays the event content through short-range wireless communication with the distribution board.

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