JP7390551B2 - Distribution board system, distribution board, and control method - Google Patents

Description

The present disclosure relates to a power distribution board system, a power distribution board, and a control method, and more specifically relates to a power distribution board system installed in a facility, a power distribution board used in the power distribution board system, and a control method for a power distribution board. .

Patent Document 1 discloses a circuit breaker. This circuit breaker includes an opening mechanism section and an arc detection circuit. The opening mechanism section cuts off the electrical circuit connecting the power source and the load. The arc detection circuit detects an arc short circuit occurring in the electric path and operates the opening mechanism.

Japanese Patent Application Publication No. 2003-317598

Depending on the situation of the facility in which the distribution board is installed, it may be desirable to appropriately shut off the breaker provided on the distribution board, that is, to improve the reliability of the breaker's interruption.

An object of the present disclosure is to provide a power distribution board system, a power distribution board, and a control method that can improve the reliability of shutting off a breaker provided in a power distribution board.

A distribution board system according to an aspect of the present disclosure includes a distribution board cabinet, one or more sensors, a communication unit, a determination unit, and a transmission unit. The cabinet is provided in the facility. Each of the one or more sensors is located outside the cabinet at the facility. The communication unit receives information from the one or more sensors through communication. The determination unit determines whether there is an abnormality in the facility based on the information received by the communication unit. The transmitter is arranged inside the cabinet. The transmitting unit is configured to shut off a target breaker that is at least one of a main breaker and one or more branch breakers arranged in the cabinet when the determining unit determines that there is an abnormality in the facility. Send a signal to the target breaker. The judgment unit makes the judgment in cooperation with an external device provided outside the cabinet. The distribution board system includes a plurality of sensors as the one or more sensors. The determination unit identifies a sensor that is a transmission source of the information among the plurality of sensors.
A distribution board system according to an aspect of the present disclosure includes a distribution board cabinet, one or more sensors, a communication unit, a determination unit, and a transmission unit. The cabinet is provided in the facility. Each of the one or more sensors is located outside the cabinet at the facility. The communication unit receives information from the one or more sensors through communication. The determination unit determines whether there is an abnormality in the facility based on the information received by the communication unit. The transmitter is arranged inside the cabinet. The transmitting unit is configured to shut off a target breaker that is at least one of a main breaker and one or more branch breakers arranged in the cabinet when the determining unit determines that there is an abnormality in the facility. Send a signal to the target breaker. The abnormality in the facility includes at least one of an earthquake, a fire in the facility, an abnormality in wiring, and flooding in the facility. The distribution board system includes a plurality of sensors as the one or more sensors. The determination unit identifies a sensor that is a transmission source of the information among the plurality of sensors.
A distribution board system according to an aspect of the present disclosure includes a distribution board cabinet, one or more sensors, a communication unit, a determination unit, a transmission unit, and a determination unit. The cabinet is provided in the facility. Each of the one or more sensors is located outside the cabinet at the facility. The communication unit receives information from the one or more sensors through communication. The determination unit determines whether there is an abnormality in the facility based on the information received by the communication unit. The transmitter is arranged inside the cabinet. The transmitting unit is configured to shut off a target breaker that is at least one of a main breaker and one or more branch breakers arranged in the cabinet when the determining unit determines that there is an abnormality in the facility. Send a signal to the target breaker. The determining unit determines a transmission mode of the signal transmitted from the transmitting unit according to a result of the determination by the determining unit. The judgment unit makes the judgment regarding at least two of an earthquake, a fire in the facility, a wiring abnormality, and flooding in the facility as abnormalities in the facility. The determination unit determines the transmission mode of the signal depending on the type of abnormality in the facility determined by the determination unit to have occurred.

A power distribution board according to one aspect of the present disclosure is used in the power distribution board system. The distribution board includes the cabinet, the main breaker, the one or more branch breakers, and the transmitter.

A control method according to one aspect of the present disclosure is a control method for a distribution board provided with a cabinet provided in a facility. The control method includes receiving information via communication from a plurality of sensors provided outside the cabinet in the facility. The control method includes determining an abnormality in the facility based on the received information in cooperation with an external device provided outside the cabinet. The control method includes transmitting a signal to cut off a target breaker, which is at least one of a main breaker and one or more branch breakers arranged in the cabinet, when it is determined that there is an abnormality in the facility. Including sending in the cabinet. The control method includes identifying a sensor that is a source of the information among the plurality of sensors.
A control method according to one aspect of the present disclosure is a control method for a distribution board provided with a cabinet provided in a facility. The control method includes receiving information via communication from a plurality of sensors provided outside the cabinet in the facility. The control method includes determining whether there is an abnormality in the facility based on the received information. The control method includes transmitting a signal to cut off a target breaker, which is at least one of a main breaker and one or more branch breakers arranged in the cabinet, when it is determined that there is an abnormality in the facility. Including sending in the cabinet. The control method includes identifying a sensor that is a source of the information among the plurality of sensors. The abnormality in the facility includes at least one of an earthquake, a fire in the facility, an abnormality in wiring, and flooding in the facility.
A control method according to one aspect of the present disclosure is a control method for a distribution board provided with a cabinet provided in a facility. The control method includes receiving information via communication from one or more sensors provided outside the cabinet in the facility. The control method includes determining whether there is an abnormality in the facility based on the received information. The control method includes transmitting a signal to cut off a target breaker, which is at least one of a main breaker and one or more branch breakers arranged in the cabinet, when it is determined that there is an abnormality in the facility. Including sending in the cabinet. The control method includes determining a transmission mode of the signal according to a result of the determination. Making the determination includes making the determination regarding at least two of an earthquake, a fire in the facility, an abnormality in wiring, and flooding in the facility as abnormalities in the facility. Determining the transmission mode includes determining the transmission mode of the signal depending on the type of abnormality in the facility that is determined to have occurred as a result of the determination.

The present disclosure has an advantage in that it is possible to improve the reliability of shutting off a breaker provided in a distribution board.

FIG. 1 is a schematic diagram showing a schematic configuration of a distribution board system according to an embodiment. FIG. 2 is a schematic diagram showing an example of a facility where the above distribution board system is introduced. FIG. 3 is a block diagram showing an example of a sensor used in the above distribution board system.

Hereinafter, a distribution board system, a distribution board, and a control method according to an embodiment of the present disclosure will be described with reference to the accompanying drawings. However, each embodiment described below is only a part of various embodiments of the present disclosure. Each of the embodiments described below can be modified in various ways depending on the design, etc., as long as the objective of the present disclosure can be achieved. Furthermore, each of the drawings described in each of the embodiments below is a schematic drawing, and the ratio of the size and thickness of each component in the drawing does not necessarily reflect the actual size ratio. do not have.

(1) Overview The distribution board system 100 of the present embodiment improves the reliability of interrupting the breakers provided in the distribution board 1, and further improves the safety of the facility 500 in which the distribution board 1 is installed. can be used to improve As shown in FIG. 1, the electricity distribution board system 100 includes a electricity distribution board 1, a sensor 20, a communication unit 51, a determination unit 542, and a transmission unit 52.

The distribution board 1 includes a cabinet 10, and the cabinet 10 is installed in a facility 500. The distribution board 1 is provided to distribute electric power to various locations in the facility 500 (such as the outlet 41 provided in each room 510 (see FIG. 2) of the facility 500).

Sensor 20 is installed in the same facility 500 where cabinet 10 is installed. Sensor 20 is placed outside cabinet 10 within facility 500 . The electricity distribution board system 100 of this embodiment includes one or more sensors 20, and in particular, the electricity distribution board system 100 includes a plurality of sensors 20.

Each sensor 20 detects a physical quantity at the location where the sensor 20 is provided. The physical quantity that each sensor 20 detects is a physical quantity that is used by the determining unit 542 to determine the presence or absence of an abnormality in the facility 500.

The communication unit 51 receives information from the sensor 20. The communication unit 51 receives information on the results detected by each sensor 20 (detection information).

The determination unit 542 determines whether there is an abnormality in the facility 500 based on the information (detected information) received by the communication unit 51.

The transmitter 52 is arranged inside the cabinet 10. The transmitting unit 52 transmits a signal to the target breaker to shut off the target breaker when the determining unit 542 determines that there is an abnormality in the facility 500. The target breaker is at least one of the main breaker 2 and one or more branch breakers 3 arranged in the cabinet 10.

In the distribution board system 100 of this embodiment, when the determination unit 542 determines that there is an abnormality in the facility 500 based on the information from the sensor 20, the transmission unit 52 shuts off the target breaker. As a result, when an abnormality occurs in the facility 500, a signal transmitted within the cabinet 10 causes power supply to the equipment 4 connected to the target breaker to be stopped. That is, in the distribution board system 100 of this embodiment, the target breaker of the distribution board 1 is activated by a signal transmitted inside the distribution board 1 according to the situation of the facility 500 (occurrence of an abnormality in the facility 500). can be appropriately blocked.

Furthermore, in the distribution board system 100 of the present embodiment, when an abnormality occurs in the facility 500, the target breaker is shut off. Even if an abnormality occurs, the safety of the facility 500 is maintained. Therefore, the safety of the facility 500 where the distribution board 1 is provided is improved.

(2) Details The electricity distribution board 1 of this embodiment and the electricity distribution board system 100 including the electricity distribution board 1 will be described in more detail with reference to FIGS. 1 to 3.

(2.1) Distribution board As described above, the distribution board 1 is provided in the facility 500.

A "facility" as used in the present disclosure may include buildings and structures built for a certain purpose. The facility may be, for example, a residential building such as a single-family house or an apartment complex, or a non-residential building such as a store, office, school, welfare facility, hospital, or factory.

Facility 500 here includes one or more rooms 510. A "room" in the present disclosure means a space set for a certain purpose in the facility 500. For example, if the facility 500 is a house, each of the living room, dining room, washroom, bedroom, etc. is a room. 510 is configured. The room 510 may be a space spatially separated from other rooms 510 by walls, doors, etc., or may be a space spatially connected to other rooms 510 by an atrium or the like. In this embodiment, as an example, it is assumed that the facility 500 is a detached house (see FIG. 2) having three rooms 510. Note that the room 510 may include a space where people do not normally live, such as a hallway, an entrance, and a storeroom (in this embodiment, this is not included).

As shown in FIG. 1, the distribution board 1 includes a cabinet 10, a main breaker 2, a plurality of branch breakers 3, a main line 8, and a control unit 5. Note that the control unit 5 will be explained in the section "(2.3) Control unit".

The cabinet 10 is attached to construction material (for example, a wall of a building). The construction material is, for example, the wall of the room 510 in the facility 500 (in this embodiment, a detached house) where the cabinet 10 is installed, but is not limited thereto, and may be the ceiling or floor of the room 510 in the facility 500. You can. The cabinet 10 is provided at a height that is out of reach for, for example, a child of average height, but at a height that can be operated by an adult of average height.

Inside the cabinet 10, a main breaker 2, a plurality of branch breakers 3, a main line 8, and a control unit 5 are housed. The main breaker 2, the plurality of branch breakers 3, the main line 8, and the control unit 5 are attached to the cabinet 10 directly or indirectly via attachment fittings or the like.

The main breaker 2 includes a primary terminal, a secondary terminal, and a contact 29 connected to the electrical path between the primary terminal and the secondary terminal. The main breaker 2 includes an operating lever for turning on or off the contact 29.

The master breaker 2 also includes a detection unit 28 (see FIG. 1) that detects an abnormal state in which a leakage current flows through the contacts 29, for example. The master breaker 2 opens the contact 29 when the detection unit 28 detects an abnormal state in which a leakage current flows through the contact 29 . Thereby, the main breaker 2 cuts off the power supply to the circuit on the secondary side of the main breaker 2, and protects the circuit. Further, when the detecting section 28 detects an overcurrent such as a short circuit current or an overload current, the main breaker 2 opens the contact 29. Note that the detection unit 28 of the main breaker 2 may have a function of detecting an open phase state of a neutral wire in single-phase three-wire wiring. The main breaker 2 may also have a limiter function that opens the contacts 29 when a current exceeding a predetermined limit value flows.

In the distribution board 1 of this embodiment, a single-phase three-wire type is assumed as the power distribution system, so a single-phase three-wire type lead-in line 61 connected to the commercial power supply 6 is electrically connected to the primary side terminal of the main breaker 2. Connected. A "common power source" as used in the present disclosure refers to a power source that is commonly used on a daily basis, and includes, for example, a grid power source (commercial power source), a solar power generation device, a wind power generation device, a power storage device, a fuel cell device, etc. Includes distributed power sources. In this embodiment, as an example, the common power source 6 is a system power source (commercial power source).

Further, a main line 8 is electrically connected to a secondary terminal of the main breaker 2 . In this embodiment, a single-phase three-wire system is assumed as the power distribution system, so the main line 8 includes a conductive bar of the first voltage pole (L1 phase), a conductive bar of the second voltage pole (L2 phase), and a neutral conductive bar. Contains a pole (N-phase) conductive bar. Each conductive bar is formed of a conductive member into a long plate shape that is elongated in the left-right direction, and is connected to the secondary terminal of the main breaker 2 inside the cabinet 10 .

The plurality of branch breakers 3 are divided into upper and lower sides of the main line 8, and are arranged in parallel in the left-right direction.

Each branch breaker 3 includes a primary terminal, a secondary terminal, and a contact connected to the electrical path between the primary terminal and the secondary terminal. Each branch breaker 3 is equipped with an operating lever for turning on or off the contact.

The primary side terminal of each branch breaker 3 is connected to the main line 8. A device 4 is connected to the secondary terminal of each branch breaker 3 via a wiring 40. The devices 4 include, for example, electrical devices such as lighting fixtures, air conditioners, television receivers, and water heaters, and wiring devices such as electrical outlets or wall switches. In the examples shown in FIGS. 1 and 2, the device 41 is an outlet, the device 42 is a wall switch, and the device 43 is a lighting fixture.

Further, each branch breaker 3 includes a detection section 31. The detection unit 31 detects an abnormal state in which an overcurrent such as a short circuit current or an overload current flows through the contacts built in the branch breaker 3. Each branch breaker 3 opens a contact when the detection unit 31 detects an abnormal state in which an overcurrent flows through the contact. Thereby, the branch breaker 3 cuts off the power supply to the circuit on the secondary side of the branch breaker 3 and protects the circuit. Further, the detection unit 31 has a function of detecting a current leakage state of a circuit (wiring 40) to which the branch breaker 3 is connected. Then, when the detection unit 31 detects the occurrence of electric leakage, the branch breaker 3 interrupts the circuit. Note that the detection unit 31 may have a function of detecting an abnormal state in which a wire or the like is about to break in a circuit connected to the branch breaker 3.

(2.2) Sensors The distribution board system 100 includes a plurality of sensors 20. Each sensor 20 detects a physical quantity at a location where the sensor 20 is provided. As described above, the physical quantity detected by each sensor 20 is a physical quantity used by the determination unit 542 to determine the presence or absence of an abnormality in the facility 500.

Each sensor 20 has a function of detecting at least one selected from vibration, odor, temperature, and humidity. In this embodiment, as shown in FIG. 3, each of the plurality of sensors 20 includes, for example, a vibration sensor 21, an odor sensor 22, a temperature sensor 23, and a humidity sensor 24. Note that each sensor 20 may include all of the vibration sensor 21, odor sensor 22, temperature sensor 23, and humidity sensor 24, or may be selected from the vibration sensor 21, odor sensor 22, temperature sensor 23, and humidity sensor 24. may include one or more sensors.

The vibration sensor 21 detects the presence or absence of vibration at the location where the vibration sensor 21 is installed by detecting acceleration as a detection target.

The odor sensor 22 detects the presence or absence of a specific odor at the location where the odor sensor 22 is installed by detecting the presence or absence and/or concentration of a target molecule as a detection target.

The temperature sensor 23 detects the temperature of the place where the temperature sensor 23 is installed by detecting temperature as a detection target.

The humidity sensor 24 detects the humidity of the place where the humidity sensor 24 is installed by detecting humidity as a detection target.

The sensor 20 includes a sensor that detects another physical quantity for the determination unit 542 to determine whether there is an abnormality in the facility 500, instead of or in addition to the vibration sensor 21, odor sensor 22, temperature sensor 23, and humidity sensor 24. You can leave it there. For example, the sensor 20 may include a brightness sensor for detecting abnormal brightness in the facility 500, a microphone for detecting the occurrence of abnormal sound in the facility 500, and the like. The distribution board system 100 also includes a sensor that detects a physical quantity other than the physical quantity used by the determination unit 542 to determine the presence or absence of an abnormality in the facility 500, for example, a sensor that detects the presence or absence of a person in the room 510 of the facility 500. It may further include a sensor (for example, an infrared sensor).

At least one of the plurality of sensors 20 is provided in the equipment 4 installed in the facility 500. The device 4 provided with the sensor 20 is a device electrically connected to the distribution board 1. More specifically, the device 4 provided with the sensor 20 is connected to one of the plurality of branch breakers 3 of the distribution board 1 via wiring 40 and receives power from the distribution board 1. It is a device. Here, each of the plurality of sensors 20 is provided in the device 4.

Here, the device 4 provided with the sensor 20 is any one of an outlet 41, a wall switch 42, and a lighting fixture 43 provided in the facility 500. That is, each of the plurality of sensors 20 is provided in one of the outlet 41, the wall switch 42, and the lighting fixture 43.

Typically, the outlet 41 is provided at a low location in the room 510 (at a height near the feet). Further, the wall switch 42 is provided at the middle height of the room 510 (at the height around a person's face). Furthermore, the lighting fixture 43 is provided at a high location (near the ceiling) in the room 510. Therefore, for example, by providing the sensor 20 at the outlet 41, the wall switch 42, and the lighting fixture 43, the space in the room 510 can be covered.

Further, the room 510 of the facility 500 is usually provided with at least one of an outlet 41, a wall switch 42, and a lighting fixture 43. Therefore, for example, by providing the sensor 20 in any one of the outlet 41, the wall switch 42, and the lighting fixture 43 in each room 510, all the rooms 510 in the facility 500 can be covered.

Of course, the device 4 provided with the sensor 20 is not limited to the outlet 41, the wall switch 42, and the lighting fixture 43, and may include, for example, a ventilation fan.

Each of the plurality of sensors 20 is connected to the electricity distribution board 1 via wiring 40 that connects the electricity distribution board 1 to the device 4 in which the sensor 20 is provided. Each sensor 20 receives power from the distribution board 1 via wiring 40 .

Each of the plurality of sensors 20 is configured to be able to communicate with the communication section 51 of the control unit 5 of the distribution board 1. Here, communication between the sensor 20 and the communication unit 51 is power line communication (PLC). That is, the sensor 20 communicates with the communication unit 51 via the wiring 40 that connects the device 4 provided with the sensor 20 and the distribution board 1. The sensor 20 transmits information (detection information) regarding the detected result (detection result) to the communication unit 51 via the wiring 40 . The sensor 20 may transmit the detection information to the communication unit 51 intermittently (eg, periodically). Alternatively, the sensor 20 may transmit the detection information to the communication unit 51 in response to a request signal from the communication unit 51.

(2.3) Control unit As shown in FIG. 1, the control unit 5 includes a communication section (first communication section) 51, a transmission section (blocking signal transmission section) 52, and an external communication section (second communication section). 53 and a processing section 54.

The control unit 5 is arranged inside the cabinet 10 of the distribution board 1. That is, in the distribution board system 100 of this embodiment, the communication unit 51, the determination unit 542 included in the processing unit 54, and the transmission unit 52 are all arranged within the cabinet 10. The control unit 5 is arranged, for example, inside the cabinet 10, along with the main breaker 2 and the plurality of branch breakers 3 in the left-right direction. The control unit 5 operates by receiving power from the primary side of the main breaker 2, for example. Note that the distribution board 1 may include a backup power source (a secondary battery such as a nickel-metal hydride battery or a lithium-ion battery, a charging/discharging circuit, etc.) for supplying power to the control unit 5 during a power outage of the grid power source. .

Control unit 5 includes, for example, a computer system. A computer system mainly consists of a processor and a memory as hardware. The function of the processing unit 54 is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, may be provided through a telecommunications line, or may be recorded on a non-transitory storage medium readable by the computer system, such as a memory card, optical disc, hard disk drive, etc. may be provided.

The communication unit 51 includes an interface for communicating with each of the plurality of sensors 20. Here, the communication unit 51 receives detection information from each of the plurality of sensors 20 through power line carrier communication.

The external communication unit 53 has a communication function to communicate with an external device via the communication network 200. Communication network 200 may include the Internet. The communication network 200 may be configured not only of a network compliant with a single communication protocol but also of multiple networks compliant with different communication protocols. The communication protocol may be selected from a variety of well-known wired and wireless communication standards. Although simplified in FIG. 1, communication network 200 may include data communication equipment such as repeater hubs, switching hubs, bridges, gateways, routers, and the like.

External devices include, for example, the server 300 and the information terminal 400.

The server 300 may be, for example, a management device that is placed outside the facility 500 and manages information from the distribution board systems 100 provided in the plurality of facilities 500. However, the present invention is not limited thereto, and the server 300 may be placed inside the facility 500, and the server 300 may manage only the distribution board system 100 of the facility 500 where the server 300 is placed.

The information terminal 400 is, for example, a terminal carried by a user of the distribution board 1, and is, for example, a smartphone or a tablet computer. The information terminal 400 may be, for example, a desktop or laptop personal computer.

As shown in FIG. 1, the processing unit 54 includes the following functions: a reception control unit 541, a determination unit 542, a determination unit 543, a cutoff control unit 544, and a communication control unit 545.

The reception control unit 541 controls the communication unit 51 to receive detection information from the plurality of sensors 20.

The determination unit 542 determines whether there is an abnormality in the facility 500 based on the information (detected information) received by the communication unit 51. The determination unit 542 determines whether or not there is an abnormality in the facility 500, for example, based on the detection information. Here, the abnormality in the facility 500 that is the target of the determination by the determining unit 542 is the abnormality in the facility 500 that should cause the supply of power from the distribution board 1 to be stopped. Examples of abnormalities in the facility 500 that are subject to determination by the determining unit 542 include an earthquake, a fire in the facility 500, an abnormality in the wiring 40, and flooding in the facility 500. The determination unit 542 can identify the sensor 20 that is the source of the detection information, for example, based on the identification information of the sensor 20 included in the detection information.

The determination unit 542 can determine whether an earthquake has occurred, for example, based on information (eg, acceleration information) received from the vibration sensor 21.

The determination unit 542 can determine whether a fire has occurred in the facility 500, for example, based on information received from the odor sensor 22 (for example, information on the presence or absence and/or concentration of a target molecule).

For example, the determination unit 542 determines whether an abnormality in the wiring 40 (such as heat generation in the wiring 40) has occurred based on information received from the temperature sensor 23 (for example, information on the temperature of the outlet 41 in which the temperature sensor 23 is installed). It is possible to judge the presence or absence. The determination unit 542 can determine whether a fire has occurred in the facility 500, for example, based on a combination of information received from the plurality of temperature sensors 23.

The determination unit 542 can determine whether or not the facility 500 is flooded, for example, based on information (for example, temperature information) received from the humidity sensor 24.

The determining unit 542 may determine whether there is an abnormality in the facility 500 based on a combination of information received from a plurality of different sensors 20. For example, the determining unit 542 may determine whether a fire has occurred in the facility 500 based on a combination of information received from the odor sensor 22 and information received from the temperature sensor 23.

Furthermore, the determining unit 542 only has to determine whether there is an abnormality in the facility 500 based on the detection information from at least one sensor 20, and does not necessarily determine whether there is an abnormality in the facility 500 based on the detection information from all the sensors 20. There's no need to judge.

When the determining unit 542 determines that there is an abnormality in the facility 500, the shut-off control unit 544 causes the transmitting unit 52 to transmit a signal (shut-off signal) for shutting off the target breaker. The target breaker includes at least one of the main breaker 2 and the plurality of branch breakers 3.

When the target breaker is the master breaker 2, the cutoff signal may be, for example, a current flowing through the contacts 29 of the master breaker 2 and a current that allows the detection unit 28 of the master breaker 2 to detect the occurrence of overcurrent. That is, the cutoff control unit 544 can cause the main breaker 2 to shut off by causing the main breaker 2 to generate a pseudo current leakage state.

When the target breaker is the branch breaker 3, the cutoff signal may be, for example, a current that flows through the contacts of the branch breaker 3 and allows the detection unit 31 of the branch breaker 3 to detect the occurrence of an overcurrent. That is, the cutoff control unit 544 can cause the branch breaker 3 to cut off by causing the branch breaker 3 to generate a pseudo current leakage state.

Of course, the cutoff signal is not limited to a current that allows the detection units 28 and 31 to detect the occurrence of an overcurrent, but may be any signal that causes the target breaker to open the contact.

When the determining unit 542 determines that there is an abnormality in the facility 500, the determining unit 543 determines a target breaker according to the result of the determination by the determining unit 542.

For example, when the determining unit 542 determines that an earthquake, fire, or flooding has occurred, the determining unit 543 determines at least the master breaker 2 as the target breaker.

For example, when the determining unit 542 determines that there is an abnormality in a certain wiring 40, the determining unit 543 determines the branch breaker 3 connected to this wiring 40 as the target breaker.

However, the present invention is not limited to this, and when the determining unit 542 determines that an earthquake, fire, or flooding has occurred, the determining unit 543 may also determine a plurality of branch breakers 3 as target breakers. Further, for example, when the determining unit 542 determines that the facility 500 has been flooded, the determining unit 543 may determine the branch breaker 3 connected to the low-lying equipment 4 of the facility 500 as the target breaker. . The target breaker may be set in advance in the memory of the computer system that constitutes the control unit 5, for example, or may be settable by the user using appropriate means.

Further, when the determining unit 542 determines that there is an abnormality in the facility 500, the determining unit 543 determines the timing for transmitting the cutoff signal from the transmitting unit 52 to the target breaker, according to the result of the determination by the determining unit 542. .

For example, when the determining unit 542 determines that an earthquake has occurred, the determining unit 543 causes the target breaker to transmit a shutoff signal after a predetermined time (for example, several minutes) has elapsed since the occurrence of the earthquake. As a result, if an earthquake occurs during the night, for example, time for the user to evacuate from the facility 500 can be secured.

In short, the determining unit 543 determines the transmission mode of the signal (blocking signal) transmitted from the transmitting unit 52 according to the result of the determination by the determining unit 542. The signal transmission mode referred to here includes the content of the signal to be transmitted (the type of target breaker), the timing of transmitting the signal, and the like.

The cutoff control unit 544 transmits a cutoff signal to the target breaker determined by the determination unit 543. As a result, the target breaker is shut off.

Note that, before transmitting the cutoff signal to the target breaker, the control unit 5 may notify the user that the target breaker is to be shut off by appropriate means such as sound or light.

The communication control unit 545 controls the external communication unit 53 to transmit and receive various information to and from external devices (server 300 and information terminal 400).

The information that the control unit 5 transmits to the external device may include, for example, judgment information indicating the result of judgment by the judgment unit 542. That is, the external communication unit 53 transmits judgment information indicating the result of the judgment by the judgment unit 542 to an external device provided outside the cabinet 10.

For example, a user of the information terminal 400 as an external device can obtain judgment information by operating the information terminal 400 and starting an application for the distribution board system 100 installed in the information terminal 400. .

For example, the server 300 as an external device can comprehensively manage determination information transmitted from the control units 5 of the plurality of distribution board systems 100.

The information that the control unit 5 transmits to the external device may include, for example, information (detection information) received by the communication section 51. That is, the external communication unit 53 transmits the information received by the communication unit 51 to an external device provided outside the cabinet 10.

For example, the server 300 as an external device may determine whether there is an abnormality in the facility 500 based on the detection information, separately from the determination section 542 of the control unit 5. For example, the server 300 as an external device transmits the determination result to the control unit 5 of the distribution board 1, and the determination unit 542 further refers to the received determination result from the server 300 to determine whether there is an abnormality in the facility 500. You may make a judgment. In short, the determination unit 542 may determine an abnormality in the facility 500 in cooperation with an external device (server 300) provided outside the cabinet 10.

For example, the server 300 serving as an external device may determine that there is no abnormality in the facility 500 based on the detection information. For example, the server 300 may determine whether the facility 500 is dirty based on information from the odor sensor 22. When determining that there is dirt in the facility 500, the server 300 may notify the information terminal 400 of the presence of dirt via the communication network 200, or operate a cleaning robot installed in the facility 500. Good too. Further, for example, the server 300 may determine whether or not the air conditioning equipment installed in the facility 500 needs to be operated based on the detection information from the temperature sensor 23 and the human sensor.

(3) Advantages As described above, according to the distribution board system 100 of the present embodiment, the determination unit 542 uses the detection result of the sensor 20 provided outside the cabinet 10 of the distribution board 1 in the facility 500. Based on this, a judgment regarding an abnormality in the facility 500 is made. If the determining unit 542 determines that there is an abnormality in the facility 500, the transmitting unit 52 shuts off the target breaker in the distribution board 1.

That is, in the electricity distribution board system 100, the breaker of the electricity distribution board 1 is shut off based on information detected by the sensor 20 at a location closer to the user than the electricity distribution board 1. Therefore, compared to a configuration in which a breaker is shut off based only on the detection result of a sensor installed in the distribution board 1, the target breaker of the distribution board 1 can be shut off appropriately depending on the situation of the facility 500. . By appropriately shutting off the target breaker, the safety of the facility 500 can be improved.

Moreover, in the distribution board system 100 of this embodiment, the main breaker 2 or the branch breaker 3 is shut off. Therefore, compared to a configuration in which the wiring 40 is cut off near a sensor provided outside the distribution board 1 (for example, inside the outlet 41), it is possible to stop the supply of power to the wiring 40 more reliably. Therefore, the safety of the facility 500 can be improved.

(4) Modifications Each of the embodiments described above is just one of various embodiments of the present disclosure. The embodiments described above can be modified in various ways depending on the design, etc., as long as the objective of the present disclosure can be achieved. Further, functions similar to those of the distribution board system 100 may be realized by a distribution board control method, a (computer) program, a non-temporary recording medium on which the program is recorded, or the like.

A control method according to one aspect is a method of controlling a distribution board 1 provided with a cabinet 10 provided in a facility 500. The control method includes receiving information via communication from one or more sensors 20 provided outside the cabinet 10 in the facility 500. The control method includes determining whether there is an abnormality in the facility 500 based on the received information. The control method includes, when it is determined that there is an abnormality in the facility 500, a signal for cutting off a target breaker, which is at least one of the main breaker 2 and one or more branch breakers 3 arranged in the cabinet 10; This includes transmitting within the cabinet 10.

A program according to one embodiment is a program for causing one or more processors to execute the above control method. The program may be provided by being recorded on a non-transitory recording medium, for example.

Modifications of the above embodiment will be listed below. The modified examples described below can be applied in combination as appropriate.

The distribution board system 100 according to the present disclosure includes a computer system in the control unit 5 and the like, for example. A computer system mainly consists of a processor and a memory as hardware. The function of the control unit 5 in the present disclosure is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, may be provided through a telecommunications line, or may be recorded on a non-transitory storage medium readable by the computer system, such as a memory card, optical disc, hard disk drive, etc. may be provided. A processor in a computer system is comprised of one or more electronic circuits including semiconductor integrated circuits (ICs) or large scale integrated circuits (LSIs). The integrated circuits such as IC or LSI referred to herein have different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, an FPGA (Field-Programmable Gate Array), which is programmed after the LSI is manufactured, or a logic device that can reconfigure the connections inside the LSI or reconfigure the circuit sections inside the LSI, may also be used as a processor. Can be done. The plurality of electronic circuits may be integrated into one chip, or may be provided in a distributed manner over a plurality of chips. A plurality of chips may be integrated into one device, or may be distributed and provided in a plurality of devices. The computer system herein includes a microcontroller having one or more processors and one or more memories. Therefore, the microcontroller is also composed of one or more electronic circuits including semiconductor integrated circuits or large-scale integrated circuits.

Furthermore, it is not an essential configuration for the distribution board system 100 that multiple functions of the control unit 5 are integrated into one housing, and the components of the control unit 5 are distributed among multiple housings. may be provided. Furthermore, at least some of the functions of the processing unit 54, such as the determination unit 542, may be realized by, for example, a cloud (cloud computing). On the contrary, all functions of the control unit 5 may be integrated into one housing.

In a modified example, the distribution board 1 may include a seismic breaker. The seismic breaker is connected to the main line 8, for example, like the branch breaker 3. The seismic breaker has a seismic sensor that detects vibrations applied to the cabinet 10. When the seismic sensor detects a vibration of a magnitude exceeding a predetermined reference value (for example, seismic motion with a seismic intensity of 5), the seismic breaker performs a disconnection operation to interrupt the circuit. A seismic breaker generates a pseudo current leakage state by, for example, electrically connecting a first voltage pole or a second voltage pole and a neutral pole via an impedance element with relatively low resistance. . When the seismic breaker generates a pseudo current leakage state, the detection unit 28 of the main breaker 2 detects the pseudo current leakage state generated by the seismic breaker 2, and the main breaker 2 opens the contacts 32.

In one modification, the distribution board 1 may include a lightning arrester (surge protection device). The lightning arrester is connected to the main line 8 on the primary side and to the ground line on the secondary side. When a surge voltage occurs due to lightning or the like, a lightning arrester undergoes dielectric breakdown due to the surge voltage, thereby bypassing the surge current and suppressing the surge voltage.

In a modified example, the distribution board 1 may include a branch current measuring device that measures the current flowing through each of the plurality of branch breakers 3. The branch current measuring device includes, for example, a coil such as a Rogowski coil, and the coil is arranged around a terminal of a conductive bar connected to a primary terminal of the branch breaker 3. The value of the current measured by the current measuring device may be transmitted to the control unit 5 or may be transmitted to an external device.

In a modified example, the distribution board 1 may include a main current measuring device that measures the current flowing through the main breaker 2 . The main current measuring device includes, for example, a current transformer arranged around the lead-in line 61. The value of the current measured by the main current measuring device may be transmitted to the control unit 5 or may be transmitted to an external device.

In a modified example, at least one of the communication unit 51 and the processing unit 54 may be provided outside the cabinet 10.

In a modified example, the communication between the communication unit 51 and the sensor 20 is not limited to power line carrier communication, and may be, for example, wireless communication or wired communication via a signal line.

In a modified example, the control unit 5 does not need to include the external communication section 53.

(5) Summary The following aspects are disclosed from the embodiments and modifications described above.

The distribution board system (100) of the first aspect includes a cabinet (10) of the distribution board (1), one or more sensors (20), a communication unit (51), a determination unit (542), A transmitter (52). A cabinet (10) is provided in a facility (500). One or more sensors (20) are located outside the cabinet (10) in the facility (500). The communication unit (51) receives information from one or more sensors (20) through communication. The determination unit (542) determines whether there is an abnormality in the facility (500) based on the information received by the communication unit (51). The transmitter (52) is arranged inside the cabinet (10). The transmitting unit (52) transmits signals to the main breaker (2) and one or more branch breakers (3) arranged in the cabinet (10) when the determining unit (542) determines that there is an abnormality in the facility (500). A signal for shutting off at least one of the target breakers is transmitted to the target breaker.

According to this aspect, when it is determined that there is an abnormality in the facility (500) based on information from the sensor (20) placed outside the cabinet (10) in the facility (500), the transmitter ( 52) shuts off the target breaker. That is, the target breaker of the distribution board (1) can be appropriately shut off depending on the situation of the facility (500) (occurrence of an abnormality in the facility (500)). Thereby, it becomes possible to improve the reliability of shutting off the breaker provided in the distribution board (1). Furthermore, it is possible to improve the safety of the facility (500) in which the distribution board (1) is installed.

In the distribution board system (100) of the second aspect, in the first aspect, each of the one or more sensors (20) detects at least one selected from the group of vibration, odor, temperature, and humidity. do.

According to this aspect, the sensor (20) detects an abnormality that should stop the power supply from the distribution board (1), such as an earthquake, an abnormality in the wiring (40), a fire or flooding in the facility (500), etc. It becomes possible.

In the distribution board system (100) of the third aspect, in the first or second aspect, the one or more sensors (20) are electrically connected to the distribution board (1) and connected to the facility (500). It is provided in the installed equipment (4).

According to this aspect, it is possible to determine an abnormality in the facility (500) based on the detection result of the sensor (20) in the device (4) to which power is supplied from the distribution board (1). .

In the distribution board system (100) of the fourth aspect, in any one of the first to third aspects, the communication between the one or more sensors (20) and the communication unit (51) is a power line carrier communication It is.

According to this aspect, communication between the sensor (20) and the communication unit (51) becomes possible without the need to newly install a communication line or the like.

The distribution board system (100) of the fifth aspect further includes an external communication section (53) in any one of the first to fourth aspects. The external communication unit (53) transmits judgment information indicating the result of the judgment by the judgment unit (542) to external equipment (server 300, information terminal 400) provided outside the cabinet (10).

According to this aspect, the judgment information can be used outside the distribution board system (100).

The distribution board system (100) of the sixth aspect further includes an external communication unit (53) in any one of the first to fifth aspects. The external communication unit (53) transmits the information received by the communication unit (51) to external devices (server 300, information terminal 400) provided outside the cabinet (10).

According to this aspect, the information (detection information) from the sensor (20) can be used outside the distribution board system (100).

In the distribution board system (100) of the seventh aspect, in any one of the first to sixth aspects, the determination unit (542) includes external equipment (server 300, The judgment is made in cooperation with the information terminal 400).

According to this aspect, it is possible to determine whether there is an abnormality in the facility (500) in cooperation with an external device.

The distribution board system (100) of the eighth aspect includes a plurality of sensors (20) as one or more sensors (20) in any one of the first to seventh aspects. The determining unit (542) identifies the sensor (20) that is the source of the information among the plurality of sensors (20).

According to this aspect, it becomes possible to identify the sensor (20) that is the source of the information, and for example, it becomes possible to use the information to determine a target breaker.

In any one of the first to eighth aspects, the distribution board system (100) of the ninth aspect is configured to transmit a signal transmitted from the transmitting section (52) according to the result of the determination by the determining section (542). It further includes a determining unit (543) that determines a transmission mode.

According to this aspect, it is possible to change the mode of shutting off the target breaker depending on the result of the determination by the determining section (542).

In the distribution board system (100) of the tenth aspect, in any one of the first to ninth aspects, the communication unit (51) and the determination unit (542) are arranged in the cabinet (10). .

According to this aspect, the system can be made more compact. Furthermore, only the distribution board system (100) can receive signals from the sensor (20), determine whether to shut off the target breaker, and transmit a shutoff signal to the target breaker.

The electricity distribution board (1) of the eleventh aspect is used in the electricity distribution board system (100) of any one of the first to tenth aspects. The distribution board (1) includes a cabinet (10), a main breaker (2), one or more branch breakers (3), and a transmitter (52).

According to this aspect, it is possible to improve the reliability of shutting off the breaker provided in the distribution board (1). Furthermore, it is possible to improve the safety of the facility (500) in which the distribution board (1) is installed.

The control method of the twelfth aspect is a control method of a distribution board (1) provided with a cabinet (10) provided in a facility (500). This control method involves receiving information via communication from one or more sensors (20) provided outside a cabinet (10) in the facility (500), and controlling the facility (500) based on the received information. When it is determined that there is an abnormality in the facility (500), at least one of the main breaker (2) and one or more branch breakers (3) arranged in the cabinet (10) transmitting a signal within the cabinet (10) to shut off a target breaker.

According to this aspect, it is possible to improve the reliability of shutting off the breaker provided in the distribution board (1). Furthermore, it is possible to improve the safety of the facility (500) in which the distribution board (1) is installed.

1 Distribution board 10 Cabinet 2 Main breaker 3 Branch breaker 4 Equipment 20 Sensor 51 Communication unit 52 Transmission unit 53 External communication unit 542 Judgment unit 543 Decision unit 100 Distribution board system 300 Server (external equipment)
400 Information terminal (external device)
500 facilities

Claims (14)

A distribution board system,
A distribution board cabinet installed in the facility,
one or more sensors located outside the cabinet in the facility;
a communication unit that receives information from the one or more sensors through communication;
a determination unit that determines whether there is an abnormality in the facility based on the information received by the communication unit;
is placed inside the cabinet, and shuts off a target breaker, which is at least one of a main breaker and one or more branch breakers placed in the cabinet, when the judgment unit determines that there is an abnormality in the facility; a transmitting unit that transmits a signal to the target breaker;
Equipped with
The determination unit makes the determination in cooperation with an external device provided outside the cabinet,
The distribution board system includes a plurality of sensors as the one or more sensors,
The determination unit identifies a sensor as a transmission source of the information among the plurality of sensors;
Distribution board system. A distribution board system,
A distribution board cabinet installed in the facility,
one or more sensors located outside the cabinet in the facility;
a communication unit that receives information from the one or more sensors through communication;
a determination unit that determines whether there is an abnormality in the facility based on the information received by the communication unit;
is placed inside the cabinet, and shuts off a target breaker, which is at least one of a main breaker and one or more branch breakers placed in the cabinet, when the judgment unit determines that there is an abnormality in the facility; a transmitting unit that transmits a signal to the target breaker;
Equipped with
The abnormality in the facility includes at least one of an earthquake, a fire in the facility, a wiring abnormality, and flooding in the facility,
The distribution board system includes a plurality of sensors as the one or more sensors,
The determination unit identifies a sensor as a transmission source of the information among the plurality of sensors;
Distribution board system. further comprising a determining unit that determines a transmission mode of the signal transmitted from the transmitting unit according to a result of the determination by the determining unit;
The distribution board system according to claim 1 or 2. A distribution board cabinet installed in the facility,
one or more sensors located outside the cabinet in the facility;
a communication unit that receives information from the one or more sensors through communication;
a determination unit that determines whether there is an abnormality in the facility based on the information received by the communication unit;
is placed inside the cabinet, and shuts off a target breaker, which is at least one of a main breaker and one or more branch breakers placed in the cabinet, when the judgment unit determines that there is an abnormality in the facility; a transmitting unit that transmits a signal to the target breaker;
a determining unit that determines a transmission mode of the signal transmitted from the transmitting unit according to a result of the determination by the determining unit;
Equipped with
The determination unit makes the determination regarding at least two of the following as an abnormality in the facility: an earthquake, a fire in the facility, an abnormality in wiring, and flooding in the facility;
The determining unit determines the transmission mode of the signal depending on the type of abnormality in the facility that is determined to be occurring in the determining unit.
Distribution board system. Each of the one or more sensors detects at least one selected from the group of vibration, odor, temperature, and humidity.
The distribution board system according to any one of claims 1 to 4. The one or more sensors are installed in equipment electrically connected to the distribution board and installed in the facility,
The distribution board system according to any one of claims 1 to 5. the communication between the one or more sensors and the communication unit is power line carrier communication;
The distribution board system according to any one of claims 1 to 6. Additionally equipped with an external communication department,
The external communication unit transmits judgment information indicating the result of the judgment by the judgment unit to an external device provided outside the cabinet.
The distribution board system according to any one of claims 1 to 7. Additionally equipped with an external communication department,
The external communication unit transmits the information received by the communication unit to an external device provided outside the cabinet.
The distribution board system according to any one of claims 1 to 8. the communication unit and the determination unit are arranged within the cabinet;
The distribution board system according to any one of claims 1 to 9. Used in the distribution board system according to any one of claims 1 to 10, comprising the cabinet, the main breaker, the one or more branch breakers, and the transmitter.
Distribution board. A method for controlling a distribution board equipped with a cabinet installed in a facility, the method comprising:
receiving information via communication from a plurality of sensors provided outside the cabinet in the facility;
Based on the information, determining an abnormality in the facility in cooperation with an external device installed outside the cabinet;
When it is determined that there is an abnormality in the facility, a signal is transmitted within the cabinet to shut off a target breaker that is at least one of a main breaker and one or more branch breakers arranged in the cabinet. And,
identifying a sensor that is a source of the information among the plurality of sensors;
including,
Control method. A method for controlling a distribution board equipped with a cabinet installed in a facility, the method comprising:
receiving information via communication from a plurality of sensors provided outside the cabinet in the facility;
making a judgment regarding an abnormality in the facility based on the information;
When it is determined that there is an abnormality in the facility, a signal is transmitted within the cabinet to shut off a target breaker that is at least one of a main breaker and one or more branch breakers arranged in the cabinet. And,
identifying a sensor that is a source of the information among the plurality of sensors;
including;
The abnormality in the facility includes at least one of an earthquake, a fire in the facility, a wiring abnormality, and flooding in the facility.
Control method. A method for controlling a distribution board equipped with a cabinet installed in a facility, the method comprising:
receiving information via communication from one or more sensors provided outside the cabinet in the facility;
making a judgment regarding an abnormality in the facility based on the information;
When it is determined that there is an abnormality in the facility, a signal is transmitted within the cabinet to shut off a target breaker that is at least one of a main breaker and one or more branch breakers arranged in the cabinet. And,
determining a transmission mode of the signal according to the result of the determination;
including;
Making the determination includes making the determination regarding at least two of an earthquake, a fire in the facility, a wiring abnormality, and flooding in the facility as an abnormality in the facility,
Determining the transmission mode includes determining the transmission mode of the signal according to the type of abnormality in the facility that is determined to have occurred as a result of the determination,
Control method.

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