KR20240069920A - Smart power controller and system with fire prevention function - Google Patents

Abstract

A smart power controller and a remote control system using it are presented. The controller includes: a memory-type power switch whose on-off state is switched by an on-off signal from an external signal by intermittently (on-off) power supply from the power input unit to the output unit; a control unit that switches the power switch from an on state to an off state to stop supplying power to the output unit when the amount of current is below a certain standard value; a memory storing control and mode information for the power switch including the arbitrary reference value; and a power supply unit that receives power from the input unit and supplies driving power to the switch and the control unit.

Description

Smart power controller and system with fire prevention function}

This disclosure relates to a smart power controller that can prevent fires from occurring in advance due to various causes such as aging cables or poor contact occurring in electric distribution boxes or outlets, and a system for applying the same.

Power supply is essential to apartments, general houses, and various types of industrial sites, and a strict control system is required to manage it safely.

In particular, relatively high-risk electrical hazards exist in factories, logistics centers, office buildings, as well as construction sites that require temporary power supply.

In the case of construction sites where power is temporarily supplied, there are electrical facilities with a higher risk than others because they are installed temporarily. However, not all workers at general construction sites have specialized knowledge about electricity, and therefore are easily exposed to danger and may experience accidents.

At construction sites, electrical distribution boxes are dispersedly installed in each work area, and it is difficult to manage them at all times, and safety inspections are required on a regular basis. Overcurrent electrical accidents usually lead to fires. They mainly cause local temperature rise due to overcurrent, arc generation due to poor contact, and cable aging, and countermeasures against this are required.

A device capable of blocking standby power has been proposed in consideration of this problem, but it cuts off power for standby power below a standard value and operates only for overcurrent caused by overload due to various causes. However, these prior technologies do not completely recover to the state before the power outage when power is restored after a power outage, but are in a standby state that still cuts off load power, so there is a problem in that electronic and electrical devices that were in operation must be set again in the field to the desired state.

KR 10-2013-0042933 A KR 10-2018-0054246 A KR 10-1685062 B1 KR 10-1241432 B1

This disclosure proposes a smart power controller with a fire prevention function that cuts off load power in immediate response to overcurrent and fire while blocking unnecessary standby power.

This disclosure proposes a smart power controller that can restore the electrical load environment to the state before the power outage when natural or random power is restored after a power outage.

The present disclosure provides a smart power control system that can be remotely managed and controlled without on-site action by restoring the electrical load environment to the state before the power outage when natural or random power restoration occurs after a power outage.

Smart power controller according to the present disclosure:

A power input unit to which power from a power source is applied;

a power output connected to an electrical device that uses power;

a power line provided between the input unit and the output unit;

A current detection sensor that detects the current of the power line;

a power switch whose on-off state is switched by an on-off signal from an external signal by intermittently turning on/off the power supply from the power input unit to the output unit;

By applying an on-off signal to the power switch to control the on-off state of the power switch, when the amount of current is below a certain reference value, the switch is switched from the on state to the off state to control the output unit. A control unit that stops power supply;

a memory to be accessed by the control unit to store control and mode information for the power switch, including the arbitrary reference value; and

It includes a power supply unit that receives power from the input unit and supplies driving power to the switch and the control unit,

The switch remembers the on or off signal input from the control unit, maintains the state before the power outage even when power from the power source is cut off, and continues the state before the power outage even after power recovery,

The control unit is configured to control the switch according to control and mode information stored in the memory after power recovery.

The power controller according to an embodiment of the present disclosure may apply a latching relay as the switch.

According to an embodiment of the present disclosure, at least one of a temperature sensor and an arc sensor may be installed in at least one of the power input unit, the power line, and the power output unit.

According to one embodiment of the present disclosure, when the temperature at a corresponding location exceeds a certain reference temperature according to temperature information obtained from the temperature sensor, the control unit applies an off signal to the switch to immediately cut off power supply through the power line.

According to an embodiment of the present disclosure, an arc sensor is installed in at least one of the power input unit, the power line, and the power output unit to detect arc occurrence that may occur at the corresponding location, and the control unit detects arc occurrence from the arc sensor. An off signal is applied to the switch by a signal to immediately block power supply through the power line.

According to one embodiment of the present disclosure, the control unit may include a wired or wireless alarm transmitter according to an emergency state including the occurrence of overcurrent.

According to one embodiment of the present disclosure, a remote control wireless communication unit for remotely controlling the control unit and a remote control terminal for remotely controlling the control unit through the remote control unit may be further provided.

According to one embodiment of the present disclosure, the remote control terminal may include a wireless remote emergency switch or a portable personal terminal.

According to one embodiment of the present disclosure, the wired transmitter may be equipped with an alarm sound transmission device that performs an acoustic alarm.

Smart remote power control system according to the present disclosure:

At least one power controller installed in a regional distribution box;

a server system that receives status information from the at least one power controller and performs control on the power controller;

a wired and wireless communication network connecting the at least one power controller and the server system; and

and at least one terminal that monitors information collected by the server through the wired or wireless communication network, generates a control signal for the at least one power controller, and controls the at least one power controller.

In the smart remote power control system according to an embodiment of the present disclosure, the power controller may apply a latch relay as the switch.

In the smart remote power control system according to an embodiment of the present disclosure, a temperature sensor may be installed in at least one of the power input unit, power line, and power output unit.

In the smart remote power control system according to an embodiment of the present disclosure, the controller applies an off signal to the switch when the temperature at the corresponding location exceeds a certain reference temperature according to temperature information obtained from the temperature sensor to power through the power line. Cut off supply immediately.

In the smart remote power control system according to an embodiment of the present disclosure, an optical sensor is installed in at least one of the power input unit, power line, and power output unit, and can detect arc occurrence that may occur at that location, The control unit immediately blocks power supply through the power line by applying an off signal to the switch based on a signal from an optical sensor.

In the smart remote power control system according to an embodiment of the present disclosure, the remote control terminal may include a wireless remote emergency switch or a portable personal terminal.

According to the present invention, a power controller having a standby power cutoff function and a system applying the same can not only save energy by blocking standby power, but also suppress fires due to overcurrent, etc. And in certain cases, for example, while the normal mode or saving mode is running, the state of the controller can be restored to the state before the power outage after a power outage and power recovery, so that the normal operation of the controller can be maintained without any additional artificial measures, and thus the power The operation of electrical/electronic devices that operate by receiving power through the controller can continue without human intervention. In addition, since the status of the controller can be monitored and controlled remotely, remote control is possible without having to go directly to the site. In particular, by installing an emergency remote switch close to the site, power is cut off without access to the site in the event of an emergency. You can control it.

1 is a system configuration diagram showing the schematic structure of a power control system according to the present disclosure.
Figure 2 is a block diagram showing the schematic structure of a power controller according to the present disclosure.
Figure 3 is an excerpt circuit diagram of the power control structure in the power controller according to the present disclosure.
Figure 4 is an excerpt circuit diagram of the MCU and warning transmission unit for power control in the power controller according to the present disclosure.
Figure 5 is a current signal amplification circuit diagram applied to the power controller according to the present disclosure.
Figure 6 is a schematic circuit diagram of a wireless communication unit that communicates with the MCU in the power controller according to the present disclosure. and
Figure 7 is a circuit diagram of an LED indicator using two LEDs in the power controller according to the present disclosure.

Hereinafter, embodiments of a smart power controller according to the present disclosure and a system to which it is applied will be described with reference to the attached drawings. However, these embodiments may be modified into various other forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. It is preferred that exemplary embodiments of the present invention concept be interpreted as being provided to more completely explain the present invention concept to a person with average knowledge in the art. Identical symbols refer to identical elements throughout. Furthermore, various elements and areas in the drawings are schematically drawn. Accordingly, the inventive concept is not limited by the relative sizes or spacing depicted in the accompanying drawings.

Terms such as first, second, etc. may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and conversely, a second component may be named a first component without departing from the scope of the present invention concept.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the inventive concept. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, expressions such as “comprises” or “has” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features or It should be understood that this does not preclude the presence or addition of numbers, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meaning as commonly understood by those skilled in the art in the technical field to which the concept of the present invention pertains. Additionally, commonly used terms, as defined in dictionaries, should be interpreted to have meanings consistent with what they mean in the context of the relevant technology, and should not be used in an overly formal sense unless explicitly defined herein. It will be understood that this is not to be interpreted.

In the accompanying drawings, variations of the depicted shape may be expected, for example, depending on manufacturing techniques and/or tolerances. Accordingly, embodiments of the present invention should not be construed as limited to the specific shape of the area shown in this specification, but should include, for example, changes in shape that occur during the manufacturing process. As used herein, any term “and/or” includes each and every combination of one or more of the mentioned elements.

One or more embodiments described below present systems according to the present disclosure.

Figure 1 is a schematic diagram showing the overall structure of a smart power system according to the present disclosure. The system according to the present disclosure shows a structure for remotely controlling a smart power controller of a distribution board installed not only in homes but also in various commercial facilities, industrial sites, and construction sites.

At the top of the system is a central computer (10) that integrates and manages all distribution boxes (13) arranged for each region. The central computer displays power and control information, current and temperature information from regional power controllers transmitted from local distribution boxes 13 in real time, and when abnormal current or abnormal temperature is detected, it sends an emergency alarm and manages portable devices, etc. transmits and raises an alarm for an emergency condition.

One or more wired or wireless repeaters 12 and a communication gateway 11 are interposed between the local distribution box and the central computer, and through the gateway 11, the central computer 10 and the personal terminal 15 for the manager are connected. Information related to the local distribution box 13 can be transmitted and received via the cloud server 14. Specifically, the personal terminal 15 monitors the processing results in the computer 10 through the cloud server 14 and controls the local distribution box 13. The local distribution box 13 is provided with a smart power controller 20 (see FIG. 2) according to the present disclosure that controls load power.

The communication method of the wireless repeater 12 may apply an ultra-high frequency band communication system, for example, 900 MHz LoRa technology, and various existing wireless communication methods may be applied thereto.

The main cause of fire occurrence in the distribution box 13 in a specific area is mostly overcurrent caused by various factors. In the present invention, overcurrent is detected in advance to cut off load power, and when standby power below a certain level is detected, load power is cut off to reduce power. curb waste.

The smart power controller 20 of the local distribution box 13 communicates with the central computer 10 through the wireless communication repeater 12 and transmits internal information such as temperature information of the wire to the central computer 10. In addition, various control information is received.

The local distribution box 13 is equipped with an external power incoming wire, an outgoing wire for supplying power to the load, as in a general distribution box, a circuit breaker that regulates the power supply between them, and a smart power controller 20 according to the present disclosure. .

Figure 2 is a block diagram showing the schematic configuration of the smart power controller 20 according to the present disclosure.

The smart power controller 20 is provided with an AC power input unit 27a and an AC power output unit 27b to which the incoming wire of the distribution box 13 or the power line from the primary breaker is connected.

A current detection unit 28 and a memory type power switch 29b are installed on the power line between the input unit 27a and the output unit 27b. That is, the power input from the input unit 27a passes through the current detection unit 28 and the power switch 29b and is then drawn to the output unit 27b.

The power switch 29b is a mechanical device that determines whether to block or pass power, and is in an on-state or off-state by external power.

The on-off state of the power switch 29b is determined by an external signal, and the on-off state is switched only by an external on or off signal.

The power switch 29b forms a power pass/block decision system together with the switch control unit 29a that controls it.

The switch control unit 29a selectively generates a switch on signal and a switch off signal for the switch 29b.

The on signal or off signal is a high signal that maintains a constant potential, and the switch 29b has separate input terminals to which the on signal and the off signal are applied, and when a high signal is applied to the corresponding port, it responds to the signal of the corresponding port. Accordingly, the power switch 29b is switched to the on or off state.

The off signal for the power switch 29b is generated by factors such as overcurrent, high temperature, and arc generation. In the case of overcurrent, it may be caused by detection of standby power below an arbitrary standard value, cable aging, or poor contact.

Sensors applied to the smart power controller 20 according to the present disclosure include a current detection sensor 28a, a temperature detection sensor 28b, and an arc sensor 28c, and these are optional elements.

The power supply unit 26 converts AC power into DC power from the AC power input unit 27a and outputs voltages necessary to drive the internal system, for example, 12VDC and 3.3V voltage.

The microprocessing unit, that is, the MCU 21, performs current detection, temperature detection, arc detection, etc., and generates low current below the threshold, high current below the threshold, and high temperature above the threshold based on the reference values written in the internal memory 21a. , and determines whether an arc is generated that causes internal optical changes, and controls the power switch 29b accordingly.

The MCU 21 is generally a one-chip microprocessor that includes a memory such as EEPROM, a port that receives each signal from sensors, a port that outputs on and off signals necessary for switch control, and a wireless communication unit 23. It includes communication ports for communication with. In addition, it has a mode control port (MODE) to which a mode switch 24 for mode control is connected, and includes a mode control port for selecting a power control mode, for example, a power saving mode and a normal mode.

The control unit or MCU may further include a remote control wireless communication unit for direct remote control and a remote control terminal for 1:1 remote control of the control unit near the site.

Figure 3 is a schematic diagram of the power control part in the smart power controller 20 according to the present disclosure.

The power input unit (PWR_IN, 27a) is connected to the power output unit (PWR_OUT, 27b), and a current sensor (CT1, 28a) and a power switch (PWR_SW, 29b) are interposed between them.

That is, one of the two power lines between the power input unit 27a and the power output unit 27b is directly connected, and the other one is provided with a current sensor 28a and a power switch 29b, so that the current of power passing through the power line is is detected, and the power switch 29b determines whether or not the power passes.

The power switch 29b to which the operating voltage (12VDC in this embodiment) is applied is a memory switch in which the on-state and off-state are stored, for example, a latching relay, and has an on-switching input terminal and an off-switching input terminal. Alternatively, off is determined by which port to which a high signal is applied, which is actually electrically grounded. This selected on-state or off-state is maintained even when a power outage occurs, and therefore, when power is restored, the off-state remains as it was before the power outage. Therefore, when power is restored after a power outage, the setting state before the power outage is restored and power supply to the battery/electronic device connected to the power output unit 27b continues as is.

An operating voltage (12VDC in this embodiment) is supplied to the power switch 29b, and the switch control unit 29a that controls it has separate on-switching circuits and off-switching circuits by two switching transistors Q11 and Q12. It has a switch circuit.

Each switching circuit has an input terminal on the gate side to which an on signal (RY-ON) signal and an off-signal (RY_OFF) from the MCU 21 are applied. When a high signal is applied to one of the two input terminals, a ground path is opened between the collector and emitter of the switching transistor connected to the on-terminal or off terminal of the power switch 29b, and the power switch 29b operates. .

The DC power required to drive the entire system is obtained by the power supply unit 26 connected to the power input unit 27a. The power supply unit 26 obtains a high DC voltage, for example, 12V power, through an AC-DC converter, and obtains 3.3V or 5V necessary for driving the MCU 21 through a regulator.

Figure 4 is an excerpt circuit diagram of the above-described MCU (21) and warning sounder (25a).

The MCU 21 is a one-chip microcomputer that contains a memory 21a such as EEPROM and outputs an on signal (RY_ON) and an off signal (RY_OFF) for on-off operation of the power switch 29b to the switch control unit 29a. Two ports, LED control port (LED_1, LED_2) that operates two LEDs, analog port (TEMP_A1_IN) for temperature value input where the temperature value from the temperature sensor is input, high current signal (CT_HI) and low current signal (CT_LO) ) also has two analog ports, and these two ports receive input from a current signal amplifier (CT AMP, Figure 5). It is equipped with a number of ports (FCSB, CSB, and SCL ports) for communication with the wireless communication unit 23, and has a BUZZ port that outputs a warning sound to the warning transmitter 25a.

The warning transmitter 25a has one transistor (Q13) that amplifies the warning sound from the MCU and a buzzer or speaker 25b that transmits sound.

Figure 5 is a schematic circuit diagram of the above-described current signal amplifier (CT_AMP).

The current signal amplifier (CT_AMP) outputs an amplified low current signal (CT_LO) and a high current signal (CT_HI) in which the signal from the current sensor is bypassed without passing through the OP amplifier.

When a very low low power signal below the standard value is input, the output signal CT_LO of the OP amp is amplified to a value in the normal range that can be recognized by the MCU, so it is determined whether to block the power switch (29b) by judging the standby power. , and the bypassed signal CT_HI is not processed by the MCU because it is at a very low level below the judgment standard.

And when a high current exceeding the overcurrent reference value is input, the output of the operational amplifier becomes saturated, and the value of the bypassed CT_HI signal is evaluated by the MCU to determine whether to block the power switch.

Figure 6 shows a schematic circuit of the wireless communication unit 23.

The wireless communication unit according to the present disclosure can apply OOK, FSK, MSK, GFSK and GMSK transmitting and receiving chips, and is equipped with a communication port for information exchange with the MCU 21, an antenna port, etc.

Figure 7 shows two LED indicator (LED1, LED2) circuits that generate a warning in the smart power controller 20 according to the present disclosure.

Below, we will look at the specific configuration and operation of the smart power controller according to the present disclosure.

The smart power controller 20 as described above is installed and used in the power supply section of temporary distribution boxes, construction sites, factories, logistics centers, buildings, and other devices that use power. Such a smart power controller may be an independent device and may take the form of an adapter that can be moved and installed.

This smart power controller 20 is equipped with a temperature sensor, spark sensor, and overcurrent measurement sensor to prevent fires caused by electricity in various electric heating devices, electric charging devices, construction electric devices, and other electric power devices, thereby preventing fires in advance. It becomes possible.

As a basic function, the low power cutoff function is equipped with a function that automatically cuts off power by measuring microcurrent to eliminate unnecessary waste of electrical energy by blocking the current consumption that generates so-called standby power.

The smart power controller according to the present disclosure applies a memory command power switch, for example, a latching relay method, to control power in the state before the power outage by maintaining the last ON/OFF state even when power is restored after a power outage.

According to the present disclosure, a long-distance wireless communication function is built in to remotely manage power through a portable terminal, etc., so that a safety manager can remotely cut off and restore power to the load when work begins or work hours end.

Here, the MCU 21 is programmed so that mode selection proceeds as follows.

First, when the mode switch 24 is briefly pressed for a predetermined time (T1) and then released, the MCU 21 controls the power switch 29b to be turned on or off.

The MCU 21 switches to the standby power setting mode when the mode switch 24 is pressed for more than a predetermined time (T2), for example, more than 3 seconds, measures the real-time standby power value, and calculates the currently measured ADC standby power value. An arbitrary constant value, for example, the value added by "35", is stored in the memory 21a such as EEPROM as a standby power blocking value, and when the controller starts operating at power-on (POWER_ON), the control value stored in the memory is read and Perform control.

The MCU 21 is configured to operate in switch address registration mode when the mode switch 24 is pressed and held for a predetermined time (T3), for example, 6 seconds, and for a predetermined time (T4), for example, 9 seconds. When pressed, the switch address registration information will be deleted.

The LED indicators (LED1, LED2) operate as follows.

First, LED1 is an indicator that shows the relay ON/OFF state and stays lit while the power switch 29b is kept in the on state, and when high temperature, instantaneous high temperature, overcurrent, or arc occurs, an alarm is sent from the warning transmitter 25a. Make it flash rapidly along with the alarm. Also, when entering standby power, the device flashes with a warning sound for a predetermined period of time, for example, at 500 msec intervals.

LED2, a warning lamp, is programmed to light up in the event of a high temperature alarm, instantaneous high temperature alarm, or overcurrent alarm. At this time, if the mode switch is pressed while the alarm is sounding, the warning sound stops (alarm is released) and LED 2 stops blinking.

The MCU 21 is programmed to operate the warning transmitter 25a as follows.

When an overcurrent occurs, a high temperature alarm, or an instantaneous high temperature alarm occurs, the buzzer sounds. At this time, the LED is kept on without blinking. At the same time, the buzzer sounds at predetermined intervals, for example, at 250 msec intervals, and then sounds for 5 seconds ( Ensure that the power relay is turned off after (minimum time required for on-site action).

And, if the overcurrent is released while the sounder buzzer of the warning transmitter 25a or the speaker 25b is sounding (for 5 seconds), the buzzer is stopped, the relay is not blocked, and the LED is turned off.

If the MCU 21 detects that the current detection current is below the standby power, it sounds a buzzer at 1-second intervals and turns off the relay to cut off power after the time required for on-site action, for example, 60 seconds.

While the buzzer is sounding, for example, if a current exceeding the standby power value is detected within 60 seconds, the warning sound is stopped, the relay is not turned off, and the relay remains on.

The wireless communication department allows the application of the new LORA wireless network even in areas without WIFI or LTE, enabling remote energy management, alarm signals, conquest control, and schedule control.

The MCU 21 performs temperature alarm and load shedding control as follows.

When a high temperature alarm of 50 degrees Celsius occurs, immediately turn off the power switch (29b), turn on the warning lamp LED2, and make the warning sound continue to sound at 250 msec intervals. At this time, if you restore it with the mode switch, the warning sound stops and the power switch (29b) is turned on.

Meanwhile, when the instantaneous temperature rises sharply, for example, if it rises by more than 1 degree within 1 second, an alarm is sent and the power switch 29b is immediately turned on to immediately cut off the power.

In the case of overcurrent, data is accumulated over a certain period of time and an average is obtained from this to lower the overcurrent detection error and increase detection precision. If the overcurrent is maintained for a certain period of time, a warning sound sounds and the time required for immediate action on site, e.g. 5 Turn off the power relay after a second.

According to the present invention, when an alarm occurs, warning information is transmitted to a server or portable terminal so that the status can be recognized remotely. When an abnormal voltage occurs in a power-using device, a cable temperature rises, an instantaneous temperature rise, or an overcurrent occurs, the central computer or This is transmitted to a portable terminal.

According to the smart power controller and system according to the present disclosure, the desired function can be performed by remote control through a wireless repeater even at a long distance or in a large area.

Smart power controllers perform key functions to prevent disasters caused by electrical accidents. Moreover, according to the present disclosure, since the power switch is a memory type, after a power outage, when the power is restored, it maintains the same state as before, and therefore, there is no need for separate artificial on-site measures as in the past, and therefore, it can be operated remotely without taking on-site measures. Power control becomes possible.

As seen above, exemplary embodiments of the present invention have been described in detail, but those skilled in the art will understand that without departing from the spirit and scope of the present invention as defined in the appended claims, The present invention may be implemented with various modifications. Therefore, changes in future embodiments of the present invention will not depart from the scope of the present invention.

10: Central computer
11: Gateway
12: repeater
13: Distribution box
15: Portable terminal
20: Smart power controller
21:MCU
21a: memory
23: Wireless Communications Department
24: mode switch
26: power unit
27a, power input
27b: power output unit
28: sensor
28a: current sensor
28b: arc sensor
29b: temperature sensor

Claims (13)

a power input unit to which power is applied from a power source and a power output unit to be connected to an electrical device;
a power line provided between the input unit and the output unit;
A current detection sensor that detects the current of the power line;
a power switch whose on-off state is switched by an on-off signal from an external signal by intermittently turning on/off the power supply from the power input unit to the output unit;
By applying an on-off signal to the power switch to control the on-off state of the power switch, when the amount of current is below a certain reference value, the switch is switched from the on state to the off state to control the output unit. A control unit that stops power supply;
a memory to be accessed by the control unit to store control and mode information for the power switch, including the arbitrary reference value; and
It includes a power supply unit that receives power from the input unit and supplies driving power to the switch and the control unit,
The switch remembers the on or off signal input from the control unit, maintains the state before the power outage even when power from the power source is cut off, and continues the state before the power outage even after power recovery,
The control unit is a smart power controller configured to control the switch according to control and mode information stored in the memory after power recovery. According to paragraph 1,
A smart power controller applying a latching relay as the power switch. According to paragraph 1,
A smart power controller in which a temperature sensor or an arc sensor is installed in at least one of the power input unit, power line, and power output unit. According to paragraph 3,
The control unit is configured to immediately block power supply through the power line by applying an off signal to the switch when the temperature at the location exceeds a certain reference temperature according to temperature information obtained from the temperature sensor. According to paragraph 3,
The control unit is a smart power controller configured to immediately block power supply through a power line by applying an off signal to the switch in response to a signal from the arc sensor. According to paragraph 1,
The control unit is a smart power controller including a wired or wireless alarm transmitter according to an emergency condition including the occurrence of overcurrent. According to paragraph 1,
A smart power controller further comprising a remote control wireless communication unit for remotely controlling the control unit and a remote control terminal for remotely controlling the control unit through the remote control unit. In clause 7,
A smart remote controller, wherein the remote control terminal includes a wireless remote emergency switch or a portable personal terminal. A smart power controller according to claim 1 installed in a regional distribution box;
A server system that receives status information from a smart power controller and performs control on the power controller;
A wired and wireless communication network linking the power controller and the server system; and
A smart remote power control system including; at least one terminal that monitors information collected by the server through the wired and wireless communication network, generates a control signal for the at least one power controller, and controls the power controller. . According to clause 9,
A smart remote power control system that applies a latching relay as the power switch. According to clause 9,
A smart remote power control system in which a temperature sensor or an arc sensor is installed in at least one of the power input unit, power line, and power output unit. According to clause 9,
The control unit is configured to immediately block power supply through the power line by applying an off signal to the switch when the temperature at the location exceeds an arbitrary reference temperature according to temperature information obtained from the temperature sensor. According to clause 9,
The control unit is configured to immediately block power supply through a power line by applying an off signal to the switch based on a signal from the arc sensor.