KR20160097680A - Power monitoring system and power monitoring device - Google Patents

Abstract

Disclosed are a power monitoring system and a power monitoring device. According to the present invention, the power monitoring system comprises: at least one power meter including at least one socket, measuring the power consumption of a home appliance connected to the at least one socket, and measuring a value of a voltage or current, supplied from the socket to the home appliance respectively, through at least one voltage sensor or current sensor; a web server storing and managing the value of the voltage or current, measured in the power meter through the voltage sensor or current sensor, and information about the power consumption of each home appliance, measured in the power meter, in a database; and a terminal device providing the information about the power consumption of each home appliance to a user by receiving the information from the web server while predicting a failure rate of each home appliance by receiving and using the value of the voltage or current, measured through the at least one voltage sensor or current sensor from the web server, and then providing information about the predicted failure rate to the user. Therefore, the present invention is capable of efficiently managing home energy and saving the energy.

Description

[0001] POWER MONITORING SYSTEM AND POWER MONITORING DEVICE [0002]

The present invention relates to a power monitoring system and apparatus, and more particularly, to a power monitoring system and apparatus capable of monitoring the power consumption of each home appliance in the home, predicting a failure probability of each home appliance, ≪ / RTI >

There are various types of conventional systems or devices for monitoring the power consumption due to the use of household appliances in the home. Particularly, Patent Documents 1 and 2 disclose a power consumption monitoring system or apparatus having an outlet form.

Patent Document 1 is related to a standby power measurement and blocking receptacle and a Zigbee communication based power control system including the same. More particularly, the present invention relates to a power control system for detecting and controlling power consumption of an electric device such as a home, a building, In particular, ZigBee communication can be used to access energy consumption monitoring and real time control by using various communication terminals, so power consumers can easily identify power consumption information and optimize power consumption.

Patent Document 2 relates to a functional portable socket-outlet having power measurement, communication and shut-off functions. It can grasp the power consumption behavior between individual electric devices and groups so that power management can be performed at industrial sites, homes, offices, Discloses a functional portable socket-outlet having a power measurement, communication, and blocking function capable of monitoring measurement by transmitting measurement data and automating fundamental energy consumption management and reporting.

As such, the conventional power consumption monitoring system or apparatus can provide information about the power consumption so that the user can monitor the consumption amount of the electric appliances connected to the outlet to consume the electric power, And a control function capable of shutting off power supply to a specific household appliance for power management purposes.

However, in order to enable the use of household appliances in the home more safely in connection with the use of home appliances in the home, in addition to monitoring their power consumption, information about the possibility of failure of the appliances used is also provided to the user .

Generally, when a power supply with a small error within the rated range is supplied from a rated voltage product, the life of the product is maximized and the stability is the highest.

However, due to unexpected accidents in various real situations, overvoltage or discharge occurs, and such overvoltage or discharge reduces not only the overall system but also shortens the lifetime of electronic products such as electric and electronic devices. Even expensive products may fail or lead to explosions, resulting in a fire in the field.

As an example, in the case of a product having its own battery, if the power supply of the device is not smooth due to the discharge, the life of the battery is rapidly shortened and charging becomes difficult. And, as an example of a more dangerous case, an overvoltage may be supplied, which may lead to a serious accident such as a fire due to overheating or a battery explosion.

Therefore, in this regard, it will be very useful to inform the user of the possibility of failure of each appliance in order to use safer household appliances in the home.

Patent Document 1: Korean Patent Laid-Open Publication No. 10-2013-0132114 (Publication date: 2013.12.04) Patent Document 2: Korean Patent Laid-Open Publication No. 10-2011-0007137 (Published on July 19, 2011)

Therefore, the present invention can monitor the power consumption of each home appliances in the home, predict the failure probability of each home appliances according to the power supply state to each home appliances, and inform the user of the prediction result in real time The present invention is directed to a power monitoring system and apparatus.

In order to achieve the above object, a power monitoring system according to an embodiment of the present invention includes at least one outlet, measures the power consumption of an appliance connected to each of the at least one outlet, At least one power meter for measuring a voltage value or a current value supplied to each household appliance through at least one voltage sensor or a current sensor; A web server for storing and managing information on a voltage value or a current value measured through the voltage sensor or the current sensor in the power meter and information on a power consumption of each of the appliances measured by the power meter; And a controller configured to receive information on the power consumption of each of the household appliances from the web server to provide information related to the power consumption to the user and to receive a voltage value measured through the at least one voltage sensor or the current sensor Or a terminal device which receives a current value and predicts a failure probability of each of the appliances by using the voltage value or the current value, and provides information on the predicted failure probability to the user.

Here, the power meter includes a data transmitting / receiving unit for transmitting / receiving data to / from an external device; An electric power meter for measuring electric power consumption of the appliance connected to each of the at least one outlet; At least one voltage sensor or current sensor for measuring a voltage value or a current value supplied to each of the appliances from an outlet to which each appliance is connected; And a control unit for transmitting information on a power consumption amount of each household appliance measured by the power measuring unit and a voltage value or a current value measured by the at least one voltage sensor or the current sensor to the external device through the data transmitting and receiving unit .

The power meter may further include a power controller for turning on or off the power of a corresponding socket according to a power control command for a specific socket received through the data transmitting and receiving unit.

The terminal device further includes a data transmission / reception unit for transmitting / receiving data to / from the web server; An information providing unit for receiving information on a power consumption amount of each of the household appliances through the data transmitting and receiving unit and processing the information to provide information related to the power consumption amount; A failure probability predicting unit that receives a voltage value or a current value measured through the at least one voltage sensor or the current sensor through the data transmitting and receiving unit and predicts a failure probability of each appliance connected to each outlet of the power meter, ; And information related to the power usage provided by the information providing unit is displayed on the screen or information on the probability of failure of each of the home appliances predicted by the failure probability predicting unit, To be displayed on the screen.

Here, when the power supply control command of the user for the specific household appliance connected to the power meter is input, the control unit transmits a power control command for turning on or off the power of the outlet to which the household appliance is connected, And can be transmitted through the transmission / reception unit.

In addition, when there are household appliances exceeding the preset reference failure probability determined according to the failure probability of each of the home appliances predicted by the failure probability predicting unit, the control unit displays a failure warning message for the appliance A power control command may be transmitted through the data transmitting and receiving unit to turn on or off the power outlet of the outlet connected to the household appliance.

In the present invention, the failure probability predicting unit may predict the relative failure probability of each of the household appliances using the voltage value or the current value measured through the at least one voltage sensor or the current sensor, and the estimated value using the Kalman filter .

According to an embodiment of the present invention, there is provided a power monitoring apparatus including: a power measuring unit for measuring a power consumption amount of each household appliance connected to at least one outlet; A failure probability predicting unit for estimating a failure probability of each of the household appliances by measuring a voltage value or a current value supplied to each of the appliances from the outlet to which the appliances are connected through at least one voltage sensor or current sensor, ; And a controller for generating information related to the power consumption using the power consumption measured by the power measuring unit according to a user's request and displaying the information on a screen, And a control unit for causing information on probability to be displayed on the screen.

Here, the power monitoring apparatus according to an embodiment of the present invention may further include a power control unit for turning on / off the socket power to the at least one socket outlet.

The controller may generate a power control command for turning on or off a power source of a socket-outlet to which the appliance is connected according to a user's request and provide the power control command to the power controller, A power supply control command for turning off the power supply of a socket outlet to which the household appliance is connected may be generated and provided to the power supply control unit when there is a household appliance exceeding a preset reference failure probability according to a failure probability, The power control unit may turn on or off the power of the corresponding socket according to the power control command provided from the control unit.

In addition, when there are household appliances exceeding the preset reference failure probability determined according to the failure probability of each of the home appliances predicted by the failure probability predicting unit, the control unit displays a failure warning message for the appliance Can be displayed.

In the power monitoring apparatus according to an embodiment of the present invention, the failure probability predicting unit predicts the failure probability using the voltage value or the current value measured through the at least one voltage sensor or the current sensor and the estimated value using the Kalman filter, The relative failure probability of the product can be predicted.

The present invention monitors the power consumption of each household appliance and remotely controls the power supply or power supply to each household appliance. It also predicts and predicts the failure probability of each household appliance used in the home. By providing information to users, it provides an environment that can more safely use home appliances used in home besides home energy management. Particularly, the present invention predicts the relative failure probability by using the Kalman filter estimation value in predicting the failure probability of each appliance, minimizes the external environment noise or the measurement noise, .

The present invention predicts the failure probability of each home appliance and provides the predicted result, thereby preventing an electric accident due to a failure of home appliances used in the home, and a remote control for power consumption monitoring and power supply Function to provide efficient management of home energy and energy saving effect.

1 is a diagram illustrating a power monitoring system in accordance with an embodiment of the present invention.
2 is a block diagram showing a detailed configuration of a power meter in the power monitoring system according to the present invention.
3 is a block diagram illustrating a detailed configuration of a terminal device in the power monitoring system according to the present invention.
4 is a block diagram showing the configuration of a power monitoring apparatus according to an embodiment of the present invention.
5 is a diagram illustrating an embodiment of providing information related to power consumption to a user.
6 is a diagram illustrating an example of providing a user with a failure probability prediction result of household appliances.

Hereinafter, the present invention will be described in detail with reference to the drawings. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 illustrates a power monitoring system according to an embodiment of the present invention. The system includes at least one power meter 100, a web server 200, and a terminal device 300 do.

In the present invention, as shown in FIG. 1, there are two types of power meter 100: main power meter and sub power meter. Here, the sub-power meter is a power meter that communicates with the external web server 200 through the main power meter, and is a type of a power meter used in connection with the main power meter.

FIG. 1 shows an example in which two power meters exist in the home. In particular, there is one main power meter and one sub-power meter. The main power meter and the sub power meter are operated in the same manner as the power meter described below, and the main power meter and the main power meter are connected to each other. The sub-power meter and the web server 100 also serve as a communication relay. In addition, in the system according to the present invention, at least one power meter 100 may have only one main power meter in the home, unlike the one shown in FIG. 1, and only a plurality of main power meters may exist.

Therefore, in the present invention, the power meter 100 may be configured as a main power meter to directly communicate with the web server 200 as shown in FIG. 1, and may be connected to the web server 200 through the relay of the main power meter The main power meter and the sub power meter are not different from each other. Therefore, in the present invention, the description of the power meter will be made without distinguishing between the case of operating with the main power meter and the case of operating with the sub power meter.

In the present invention, at least one power meter 100 existing in the home has unique identification information. Each of the power meters 100 includes at least one receptacle, and the power meter 100 measures the amount of power used in a household appliance connected to the at least one receptacle on a one-to-one basis.

Also, the power meter 100 measures a voltage value or a current value supplied from the outlet connected to each household appliance to each of the household appliances through at least one voltage sensor or current sensor.

The voltage sensor or the current sensor exists in a one-to-one correspondence with each outlet present in the power meter, and measures a voltage value or a current value supplied to the appliance from each outlet. The voltage value or the current value measured by the voltage sensor or the current sensor is information for confirming the state of power supply from the outlet to the household appliance connected thereto.

In the present invention, the power meter 100 may have a function of turning on or off the power of a corresponding socket according to a power control command for a specific socket received from the outside. Thereby, the power meter 100 can be configured to be capable of external remote control.

2, the power meter 100 includes a data transmitting and receiving unit 110, at least one outlet 120, and a controller 130. The power meter 100 includes a power meter 110, A power measuring unit 130, at least one voltage sensor or current sensor 140, a power control unit 160, a user interface 170, and a control unit 150.

The data transmission / reception unit 110 is configured to transmit / receive data to / from an external device.

The power measuring unit 130 measures the power consumption of the household appliances connected to each of the at least one outlet 120.

At least one voltage sensor or current sensor 140 measures a voltage value or a current value supplied from the outlet 120 to each of the appliances to which the appliances are connected.

The power control unit 160 turns on or off the corresponding socket according to the power control command for the specific socket received through the data transmitting and receiving unit 110.

The control unit 150 controls the operations of the respective units so that the information on the power consumption of each household appliance measured by the power measuring unit 130 and the voltage value measured by the at least one voltage sensor or the current sensor 140 And the current value is transmitted to the outside through the data transmission / reception unit 110. In addition, the controller 150 may control specific information to be displayed on the screen according to a user's request inputted through the user interface 170 or may control the operations of the respective units to perform other operations according to the request.

The web server 200 shown in FIG. 1 may measure the voltage value or current value measured from the at least one power meter 100 through the voltage sensor or the current sensor 140, And receives information on the power consumption of each of the measured household appliances. The terminal 300 stores and manages the received data in a database, and provides the data to the terminal 300 according to a data request input from the terminal 300.

The terminal device 300 includes a terminal device such as the notebook computer or the mobile communication terminal shown in FIG. 1, which can access the web server while the user is moving.

The terminal 300 receives power consumption information of at least one household appliance measured by each of the power meters 100 from the web server 200 and provides information related to the power consumption to the user. Here, the information related to the power consumption may include information on the amount of accumulated power used at the same time that can be generated by processing the amount of power consumption information of the at least one household appliance, information on the amount of power used during the day, Weekly / monthly cumulative power usage information, or electricity rate information according to the day / week / month cumulative power usage amount.

The terminal 300 receives the measured voltage value or current value from the web server 200 through the at least one voltage sensor or the current sensor 140 in the power meter 100, Predicts a failure probability for at least one household appliance connected to the power meter 100 and provides information on the predicted failure probability to the user.

Here, if there is a home appliance that exceeds a predetermined reference failure probability set according to the predicted failure probability of each home appliance, the terminal device 300 displays a failure warning message for the home appliance A power control command for turning off the outlet power of the power meter 100 to which the appliances are connected is generated and transmitted to the power meter 100 through the web server 200.

Meanwhile, when a power supply control command for a specific household appliance is inputted by the user, the terminal device 300 transmits a power control command for turning on or off the outlet power of the power meter 100 to which the appliance is connected To the corresponding power meter 100 through the web server 200. [0033] FIG.

FIG. 3 is a block diagram illustrating a detailed configuration of a terminal device in the power monitoring system according to the present invention. Referring to FIG. 3, the terminal device 300 will be described in detail.

3, the terminal device 300 includes a registration unit 310, a data transmission / reception unit 320, an information providing unit 330, a failure probability predicting unit 340, a user interface 360, and a control unit 350).

The registration unit 310 receives the identification information of the at least one power meter 100 from the user through the user interface 360 and transmits the identification information of the at least one power meter 100 to the power meter 100). The registering unit 310 receives information on household appliances connected to the at least one receptacle 120 provided in each of the power meters 100 through a user interface 360 and registers them . Accordingly, the terminal device 300 can register information on at least one power meter 100 used in the home, and information on at least one of the power meter 100 connected to each of the power meter 100, Information about household appliances can be obtained.

The data transmitting and receiving unit 320 is configured to transmit and receive data to and from the web server 200. [

The information provider 330 receives the information on the power consumption of each of the household appliances through the data transmitting and receiving unit 320 and processes the information to provide information related to the power consumption. Here, since the information related to the power consumption has been described above, the description thereof will be omitted here.

The failure probability predicting unit 340 receives the measured voltage value or the current value through the at least one voltage sensor or the current sensor 140 in the power meter 100 through the data transmitting and receiving unit 320, To predict a failure probability for at least one appliance connected to the power meter (100). In other words, the failure probability predicting unit 340 predicts the failure probability according to the power supply state to each of the household appliances.

At this time, the failure probability predicting unit 340 estimates the failure probability P3 according to the voltage value or the current value measured through the at least one voltage sensor or the current sensor 140 and the estimated value using the Kalman filter, The probability of the relative failure of the battery is predicted.

The reason is that the information measured through various sensors has a high probability of error in information measured due to environmental noise and measurement noise. Therefore, the failure probability predicting unit 340 predicts the relative failure probability using the Kalman filter estimation value, thereby minimizing the influence of the noise associated with the measured value of the voltage sensor or the current vowel 140 I will. Thus, the failure probability prediction unit 340 can more accurately predict the failure probability for each of the household appliances.

The control unit 350 controls the operations of the respective units in the terminal device 300 and transmits information related to the amount of power usage provided by the information providing unit 330 according to a user's request inputted through the user interface 360 Is displayed on the screen of the terminal device 300 or the failure probability predicted by the failure probability prediction unit 340 is displayed on the screen.

When a user's power supply control command for a specific household appliance is input through the user interface 360, the controller 350 controls the outlet 120 of the power meter 100 to which the appliance is connected, It is possible to generate a power control command for turning on or off the power. The control unit 350 causes the generated power control command to be transmitted to the web server 200 through the data transmitting and receiving unit 320. In this case, the web server 200 allows the power control command received from the data transmission / reception unit 320 of the terminal device 300 to be transmitted to the corresponding power meter 100.

In the case where there are household appliances exceeding the reference failure probability preset in accordance with the failure probability of each of the home appliances predicted by the failure prediction predicting unit 340, Generates a power control command for displaying a failure warning message on the screen of the terminal device 300 or turning off the outlet power of the power meter 100 to which the appliance is connected, (200).

Thus, the power monitoring system according to the present invention can monitor the power consumption of each household appliance in the home, remotely control the power supply to the household appliances or cut off the power supply, By providing the predicted probability and the predicted failure probability information to the user, it is possible to provide an environment in which the home appliance used in the home can be used more safely than the home energy management.

Meanwhile, the functions provided by the system according to the present invention can be provided in the form of a single device.

FIG. 4 is a block diagram illustrating a configuration of a power monitoring apparatus according to an exemplary embodiment of the present invention, and is configured to provide the same functions as the system according to the present invention in the form of a single apparatus.

4, the power monitoring apparatus 400 according to the present invention includes at least one socket 410, a register 420, a power measuring unit 430, at least one voltage sensor or current sensor 440, A power control unit 470, a user interface 480, and a control unit 460. The power control unit 470 may include a display unit 450, a power control unit 470, a user interface 480,

The registering unit 420 receives information on household appliances connected to each of the at least one receptacle 410 provided in the power monitoring apparatus 400 through a user interface 480 and registers the same. The power monitoring apparatus 400 is information registered through the registering unit 420 and acquires information on household appliances connected to the respective outlets 410 of the power monitoring apparatus 400.

The power measuring unit 430 measures the power consumption of each household appliance connected to the at least one outlet 410.

The failure probability predicting unit 450 measures a voltage value or a current value supplied from the outlet 410 to which the appliances are connected to the appliances through at least one voltage sensor or current sensor 440, And predicts the failure probability of each of the household appliances.

Here, the failure probability predicting unit 450 estimates the relative failure of each of the home appliances using the voltage value or the current value measured through the at least one voltage sensor or the current sensor 440 and the estimated value using the Kalman filter And estimating the probability.

As described above, the failure probability predicting unit 450 estimates the relative failure probability using the estimated value using the Kalman filter, so that noise associated with the measured value of the voltage sensor or the current vocabulary 440 To minimize the impact of

The power control unit 470 is configured to turn on or off the outlet power to the at least one outlet 410.

The controller 460 controls the operations of the respective units in the power monitoring apparatus 400 and controls the operation of the power monitoring apparatus 400 based on the power consumption measured by the power measuring unit 430 in response to a user's request input through the user interface 480. [ Information related to the power consumption is generated and displayed on the screen of the power monitoring apparatus 400 or information on the probability of failure of each of the home appliances predicted by the failure probability predicting unit 450, .

The controller 460 may generate a power control command for turning on or off the power of the outlet 410 to which the appliance is connected according to a user's request and provide the generated power control command to the power controller 470. If there is a home appliance exceeding the reference failure probability preset in accordance with the failure probability of each home appliance predicted by the failure probability predicting unit 450, the controller 460 controls the outlet 410 and supplies the power control command to the power controller 470. The power control unit 470 turns on or off the corresponding socket 410 according to the power control command provided from the control unit 460.

If there are household appliances exceeding the reference failure probability preset in accordance with the failure probabilities of the respective home appliances predicted by the failure probability predicting unit 450, the controller 460 outputs a failure alarm A message may be displayed on the screen of the power monitoring apparatus 400. [

5 and 6 show an example of information that can be displayed on the screen of the terminal device 300 or displayed on the screen of the device 400 according to the present invention in the system according to the present invention. FIG. 6 is a diagram illustrating an example of providing a user with a prediction result of failure probability of household appliances.

5 shows an example in which information on power consumption that can be provided to a user and information on power consumption per day is provided on a screen.

6 is a schematic view showing a state where a refrigerator and an air conditioner are respectively connected to two outlets C01 and C02 of a first power meter PMM1404050 and two outlets C01 and C02 of a second power meter PMM1404060 are connected to a computer, And the prediction result of the failure probability for each of the above four home appliances is provided. Here, if the preset reference failure probability is 80%, it can be known that the microwave oven exceeds the reference failure probability. In this case, in the system according to the present invention, the terminal device 300 generates a power control command for turning off the corresponding outlet (C02) of the second power meter (PMM1404060) to which the microwave oven is connected, To be received by the second power meter (PMM1404060) or to display a failure warning message on the microwave oven product to inform the user of the possibility of the microwave oven product being faulty.

As described above, the power monitoring system and apparatus according to the present invention predicts the failure probability of each household appliance used in the home and provides the predicted result, thereby preventing an electric accident due to a failure of the home appliance used in the home You can do it. In addition, monitoring of power consumption in the home and remote control of power supply by home appliances are enabled, thereby providing efficient management of home energy and energy saving effect.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Do. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

100: Power meter
110, 320: Data transmission /
120,410: Outlet
130, 430:
140,440: Voltage sensor or current sensor
150, 350,
160, 470:
170,360,480: User interface
200: Web server
310. 420: Register
330: Information provision
340, 450: Failure probability predicting unit
300: terminal device
400: Power monitoring device

Claims (12)

And at least one outlet, measuring the power consumption of the appliance connected to the at least one outlet, and outputting a voltage value or a current value supplied from the outlet to each of the appliances by at least one voltage sensor or current sensor At least one power meter;
A web server for storing and managing information on a voltage value or a current value measured through the voltage sensor or the current sensor in the power meter and information on a power consumption of each of the appliances measured by the power meter; And
Receiving information on a power consumption amount of each of the household appliances from the web server to provide the user with information related to the power consumption amount and receiving a voltage value or a voltage value measured through the at least one voltage sensor or the current sensor from the web server, And a terminal device that receives the current value and predicts a failure probability of each of the home appliances using the voltage value or the current value and provides information on the predicted failure probability to the user.
The method according to claim 1,
The power meter includes:
A data transmission / reception unit for transmitting / receiving data to / from an external device;
An electric power meter for measuring electric power consumption of the appliance connected to each of the at least one outlet;
At least one voltage sensor or current sensor for measuring a voltage value or a current value supplied to each of the appliances from an outlet to which each appliance is connected; And
And a control unit for transmitting information on a power consumption of each household appliance measured by the power measuring unit and a voltage value or a current value measured by the at least one voltage sensor or the current sensor to an external device through the data transmitting and receiving unit Monitoring system.
3. The method of claim 2,
The power meter includes:
And a power control unit for turning on or off a power of a corresponding socket according to a power control command for a specific socket received through the data transmitting and receiving unit.
The method according to claim 1,
The terminal apparatus comprises:
A data transmission / reception unit for transmitting / receiving data to / from the web server;
An information providing unit for receiving information on a power consumption amount of each of the household appliances through the data transmitting and receiving unit and processing the information to provide information related to the power consumption;
A failure probability predicting unit that receives a voltage value or a current value measured through the at least one voltage sensor or the current sensor through the data transmitting and receiving unit and predicts a failure probability of each appliance connected to each outlet of the power meter, ; And
Information on the power consumption provided by the information providing unit is displayed on the screen or information on the probability of failure of each of the household appliances predicted by the failure probability predicting unit And a control unit for causing the display unit to display the image on the screen.
5. The method of claim 4,
Wherein,
A power supply control command for turning on or off a power supply of a socket outlet to which the household appliance is connected when the user's power supply control command for the specific household appliance connected to the power meter is inputted, Monitoring system.
5. The method of claim 4,
The failure probability predicting unit estimates,
And estimating a relative failure probability of each of the home appliances using a voltage value or a current value measured through the at least one voltage sensor or the current sensor and an estimated value using the Kalman filter.
5. The method of claim 4,
Wherein,
A failure warning message for a corresponding home appliance is displayed on the screen when there is a home appliance exceeding a reference failure probability preset according to the failure probability of each home appliance predicted by the failure probability predicting unit, And transmits a power control command for turning off the power of the connected socket through the data transmitting and receiving unit.
A power measuring unit for measuring a power consumption amount of each household appliance connected to at least one outlet;
A failure probability predicting unit for estimating a failure probability of each of the household appliances by measuring a voltage value or a current value supplied to each of the appliances from the outlet to which the appliances are connected through at least one voltage sensor or current sensor, ; And
According to a user's request, information related to the power consumption is generated and displayed on a screen by using the power consumption measured by the power measuring unit, or a probability of failure of each of the home appliances predicted by the failure probability predicting unit And a control unit for causing the display unit to display information on the display unit.
9. The method of claim 8,
And a power control unit for turning on / off the outlet power for the at least one outlet.
10. The method of claim 9,
Wherein,
A power control command for turning on or off the power of a socket outlet to which the appliance is connected according to a user's request and providing the power control command to the power control unit or setting the power control command according to the failure probability of each of the home appliances predicted by the failure probability predicting unit Generates a power control command for turning off the power supply of a socket-outlet to which the household appliance is connected, and supplies the generated power control command to the power control unit when there is a household appliance exceeding the reference failure probability,
The power control unit includes:
And power on / off of the corresponding socket according to the power control command provided from the control unit.
9. The method of claim 8,
Wherein,
A power monitoring device for displaying a failure warning message for the home appliance when a home appliance exceeding a preset reference failure probability exists according to a failure probability of each home appliance predicted by the failure probability predicting section, .
9. The method of claim 8,
The failure probability predicting unit estimates,
And estimating a relative failure probability of each of the household appliances using a voltage value or a current value measured through the at least one voltage sensor or the current sensor and an estimated value using the Kalman filter.

Images