KR20120003315A - System, apparatus, and method for energy display of electric device - Google Patents

Abstract

PURPOSE: An energy display system of an electronic device, an energy display apparatus of the electronic device, and an energy display method thereof are provided to support electrical energy utilization. CONSTITUTION: An energy related information display device is attached in the outside or surroundings of an individual electronic device. An estimating device(21) estimates respective energy of each electronic device based on an energy variation amount according to time in a meter. An analysis device(22) analyzes an amount of consumed power for each electronic device based on usage time analysis of the each electronic device. A first receiving device(25-1~25-k) receives individual energy related information of the electronic device from the analysis device and estimating device.

Description

Energy display system of electric device, energy display device of electric device, energy display method of electric device {System, Apparatus, and Method for Energy Display of Electric Device}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energy display system, an energy display device, and an energy display method of an electric device, and in particular, displays energy-related information of each electric device that operates by using electric energy at an energy consumer to correspond to individual electric devices. Helps the use of electrical energy.

Until now, various kinds of energy such as electricity, gas, and water were supplied in accordance with the maximum demand, and the price of electricity was kept fixed.

However, in recent years, as a way to more efficiently use the limited energy resources and reduce energy consumption, a method of differentially dividing the price of electricity by time and season is being considered.

In addition, as a technology for promoting the efficient use of energy, Smart Grid (Smart Grid) or Smart Meter (Smart Meter) is of interest.

Smart Grid is a next-generation power grid that optimizes energy efficiency and creates new added value by integrating information technology (IT) into the power grid, allowing power providers and consumers to exchange real-time information in both directions.

A smart meter is a digital electricity meter with a communication function, which enables real-time investigation of power usage or two-way communication between a power provider and a consumer.

Therefore, the meter can be remotely read without visiting the home, and real-time metering enables accurate measurement of power consumption, resulting in cost savings and energy savings.

In the smart grid society, the smart meter and the IHD (In Home Display) are used to change the environment to control the power of individual electrical devices, and the price of electricity also changes over time. Therefore, the user tries to use the electric energy in the most rational way for him.

In order to enable users to actively control electrical energy consumption, it is necessary to provide convenient and easy access to energy-related information such as energy usage and electricity bills.

In addition, since it is difficult to realize the energy consumption situation only by integrating energy-related information, it should be considered to provide energy-related information in response to individual electric devices.

Accordingly, the present invention has been made to meet the above needs, and by displaying the energy-related information on the electrical device of the energy consumer corresponding to each of the individual electrical devices, the user can more realistically confirm the use of the electrical energy. The present invention provides an energy display system, an energy display device, and an energy display method of an electric device.

In order to achieve the above object, the energy display system of the electrical appliance according to the present invention is an energy-related information display means attached to the outside or periphery of the individual electrical equipment, the individual electrical equipment based on the amount of energy change over time in a meter Estimating means for estimating the individual energy of the apparatus, analyzing means for analyzing the amount of power consumption of the individual electrical apparatuses based on analysis of the usage time of the individual electrical apparatuses, and energy-related information display means attached to the outside or the periphery of the individual electrical apparatuses. And first receiving means for receiving the individual energy related information of the individual electric equipment from the estimating means and the analyzing means.

The energy display system of the electric device according to the present invention may further comprise a second receiving means for receiving price information of electricity over time from the central server.

An energy display device of an electric device according to the present invention comprises energy-related information display means attached to the outside or periphery of the individual electric device, estimating means for estimating the individual energy of the individual electric device based on the amount of energy change over time in the meter, Analysis means for analyzing the amount of power consumption of the individual electrical device based on the analysis of the use time of the individual electrical device, and energy-related information display means attached to the outside or periphery of the individual electrical device is separated from the estimation means and analysis means And first receiving means for receiving individual energy related information of the electrical appliance.

The energy display device of the electric device according to the present invention may further comprise a second receiving means for receiving price information of electricity over time from the central server.

The meter may include a smart meter, and the smart meter may store and maintain energy usage information of the individual electric device in a memory.

The role of the estimating means and the analyzing means may be configured to be performed in a smart meter or a central server.

The analyzing means may predict one or more of the current energy usage fee and the future energy usage fee of the individual electrical device.

The analyzing means can predict the life of the individual electrical device.

An energy display method of an electric device according to the present invention includes a display step of displaying energy-related information outside or around an individual electric device, and an estimating step of estimating the individual energy of the individual electric device based on an amount of energy change over time in a meter. An analysis step of analyzing the amount of power consumption of the individual electrical device based on the analysis of the usage time of the individual electrical device, and the display step of displaying the energy-related information on the outside or periphery of the individual electrical device is the estimation step and the analysis step It may be configured to include a receiving step for receiving the individual energy related information of the individual electrical device from.

The energy display method of the electric device according to the present invention may further comprise the step of receiving the price information of electricity over time from the central server.

The estimating step and the analyzing step may be configured to be performed in a smart meter or a central server.

The analyzing step may be configured to predict one or more of the current energy usage fee and the future energy usage fee of the individual electrical device.

The analyzing step may be configured to predict the life of the individual electrical device.

The individual energy related information may be transmitted and received by a wireless communication method such as RF communication, Zigbee communication, Bluetooth communication, or the like through a wired communication method through a general wire, a power line, a LAN cable, a telephone line, and the like.

According to the present invention, it is possible to grasp the operation state of each electric device by comparing the energy usage per unit time detected by the meter with the energy usage per unit time for each electric device which is input in advance.

When the operation status of each electric device is grasped, information such as usage time and electricity consumption of each electric device can be known, and thus, current or future energy usage rates can be predicted within a reasonable range using price information of electricity according to time. have.

Energy-related information such as electricity consumption, current energy usage charges, and future energy usage charges are displayed in a one-to-one correspondence for each electrical appliance, so that the user can easily check the energy consumption of individual electrical appliances.

When the energy-related information is displayed for each individual electric device, the user can feel the energy consumption of each electric device, and can help the decision to select the electric device to be operated and the electric device to be stopped. Limited energy resources can be used more efficiently.

1 and 2 show an embodiment of an energy display system according to the present invention;
3 to 8 are examples for explaining a method for identifying an operating state of each electric device in relation to the present invention;
9 is an example of an energy price structure;
10 to 13 are examples of various methods of predicting future energy usage rates;
14 and 15 show an embodiment of an energy display device according to the present invention;
16 is an embodiment of a configuration of a meter;
17 is an example of information to be set in a meter,
18 illustrates an embodiment of configuring first receiving means and display means;
19 illustrates an example of a state of use of a device for displaying energy related information;
20 is an embodiment of an energy display method according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Energy in the context of the present invention refers to electrical energy.

Referring to FIG. 1, the electric energy supplied by the electric power company 11 is led to an energy consumer along an electric line 11-1 and used in various electric devices 16-1 to 16-k.

An electric device refers to a device that operates by using electric energy such as a refrigerator, a TV set, a heating device, an air conditioner, a lighting device, and the like.

A meter 13 is installed at the energy consumer, and the meter 13 refers to an electronic meter that detects electric energy usage information such as energy usage. As the meter 13, a smart meter may be used.

The energy display system according to the present invention comprises at least an estimating means 21, an analyzing means 22, first receiving means 25-1 to 25-k, and display means 26-1 to 26-k. Is done.

The role of the estimating means 21 and the analyzing means 22 may be performed in the meter 13 or in the central server 15 as shown in FIG. 2.

The central server 15 is a server in which the power company 11 provides energy-related services. The central server 15 may transmit electricity price information through various communication networks such as a wireless mesh, a power line communication network, and an internet network.

The display means 26-1 to 26-k are attached to the outside or the periphery of each electric device 16-1 to 16-k to visually display energy-related information. Receiving means 25-1 to 25-k receive from the estimating means 21 and the analyzing means 22.

The estimating means 21 and the analyzing means 22 exchange energy related information of individual electric devices between the first receiving means 25-1 to 25-k through various wireless communication methods or wired communication methods. Can be done.

Examples of wireless communication methods include RF communication, Zigbee communication, and Bluetooth communication. In the case of using a wired communication method, communication may be performed using a general wire, a power line, a local area network (LAN) cable, a telephone line, or the like.

The energy display system may further include second receiving means 23 for receiving price information of electricity over time from the central server 15.

The estimating means 21, the analyzing means 22, the first receiving means 25-1 to 25-k, and the display means 26-1 to 26-k of the energy display system will now be described in detail. .

The estimating means 21 estimates the operating state of each electric device, for example, which electric device is in operation, based on the amount of energy change with time detected by the meter 13.

To this end, the estimating means 21 maintains energy usage information per unit time of each electric device. Energy usage information per unit time of each electric device may be previously input at the time of manufacture, or may be configured to be input by the user.

In the latter case, the estimating means 21 provides a user interface (UI) that allows the user to input energy usage information per unit time of each electric device, or the user input of each electric device input from another device. Energy usage information per unit time can be received.

In an embodiment in which the role of the estimating means 21 is performed by the meter 13, the meter 13 may include a display screen, a key button, and the like to provide such a user interface.

In the embodiment in which the role of the estimating means 21 is performed by the central server 15, the central server 15 interfaces with the user in various ways such as an Internet web site or a call center, and the unit of each electric device used by the user. Allows you to enter the energy usage information per hour.

3 to 6, a method of estimating an operating state of each electric device based on the amount of energy fluctuation (specifically, the total energy consumption per unit time) detected by the estimator 21 by the meter 13 is described. Let's explain.

Referring to FIG. 3, when the total energy usage detected by the meter 13 at one time point ta is Qa and the total energy usage detected by another time point tb is Qb, the total per unit time when 'tb-ta' is unit time. The change in energy consumption is Qb-Qa. In this case, Qb> Qa.

The change in total energy usage per unit time means that the electrical equipment in operation has changed.

As shown in FIG. 4, the estimation means 21 compares the 'Qb-Qa' with the energy usage information per unit time for each electric device that is input in advance (S311), and matches the 'Qb-Qa' within an error range. An electric device having an energy usage per unit time is found, and it is estimated that the electric device is in an OFF state after being in an OFF state (S312).

Referring to FIG. 5, when the total energy usage detected at one time ta is Qa and the total energy usage detected at another time tb is Qb, and the variation amount of the total energy usage per unit time when 'tb-ta' is unit time is It becomes 'Qb-Qa'. At this time, since Qa> Qb, it becomes 'Qa-Qb' when converted to a positive value.

As shown in FIG. 6, the estimation means 21 compares the 'Qa-Qb' with the energy usage information per unit time for each electric device that is input in advance (S321), and matches the 'Qa-Qb' within an error range. An electric device having an energy consumption per unit time is found, and the electric device is in an ON state, and it is estimated that the electric device is in an OFF state at a time ta (S322).

The estimating means 21 is the first receiving means 25 corresponding to each of the electric devices 16-1 to 16-k to obtain information that can be grasped from the operating state of each electric device, for example, whether or not to operate or an operation time. -1 to 25-k).

7 and 8, a specific example in which the estimating means 21 estimates the operating state of each of the electric devices 16-1 to 16-k will be described.

FIG. 7 shows energy usage per unit time for the electric devices L1 to L5, and the electric devices L1 to L5 use energy of Q1 to Q5 per unit time, respectively.

As described above, the information that the electric devices L1 to L5 use the electric energy of Q1 to Q5 per unit time, respectively, may be previously input at the time of manufacture or may be input by the user.

FIG. 8A shows the variation of the total energy usage detected by the meter 13 in each time interval. Each section is a unit time section.

The total energy consumption per unit time in section 1 is Q2, and the total energy consumption per unit time in section 2 is 'Q2 + Q4'.

That is, since the variation amount of the total energy consumption per unit time for the interval 1 and the interval 2 in FIG. 8A is Q4, when the estimating means 21 compares Q4 with the energy consumption per unit time for each electric device that has been previously inputted, It can be assumed that the operating state of the electric device L4 has changed from OFF to ON at the start time.

The total energy consumption per unit time in interval 3 is 'Q2 + Q4 + Q1'.

That is, since the variation amount of the total energy consumption per unit time for the interval 2 and the interval 3 in FIG. 8A is Q1, when the estimating means 21 compares the Q1 with the energy consumption per unit time for each electric device that is previously inputted, It can be assumed that the operating state of the electric device L1 has changed from OFF to ON at the start time.

Similarly, if the total energy consumption per unit time in Q5 in FIG. 8A decreases by Q2, the estimating means 21 estimates that the operating state of the electric device L2 has changed from ON to OFF at the start of the interval 5. can do.

In this way, the estimating means 21 can estimate the operating state of each electric device by comparing the amount of change per unit time of the total energy use with the energy use per unit time for each electric device that is input in advance.

8B shows the result of the estimation means 21 estimating the operating states of the electric devices L1 to L5 through the above-described method.

The analyzing means 22 analyzes the amount of power consumed by the individual electric devices based on the use time of each electric device.

As described above, since the information about the operation state of each electric device is estimated through the estimating means 21, the use time of each electric device can be known through this information, and the use time of each electric device and the energy consumption per unit time. You can analyze the power consumption using.

The amount of power consumed refers to the total amount of power consumed by each electric device, and the amount of power consumed may be for a reference period during which an energy usage fee is calculated. For example, if the energy usage fee is billed on a monthly basis, it may be the amount of power used by the electric device up to the present time after the energy usage fee is recalculated.

The analyzing means 22 may predict the current or future energy usage rates for the individual electric devices based on the power consumption amount of each of the analyzed electric devices 16-1 to 16-k and the price information of electricity.

The analysis means 22 basically predicts the energy usage fee of the individual electric equipment, but of course, the total energy usage fee may be estimated by adding the energy usage fee of the individual electrical equipment as necessary.

In the embodiment in which the price information of electricity is received by the second receiving means 23 from the central server 15, and the central server 15 performs the role of the analyzing means 22 as shown in FIG. (15) has price information of electricity.

The price of electricity may have various structures. If the price of electricity is fixed, the price information of electricity has a simple structure such as Won / KWh, Won / KVarh, Won / KVAh.

However, electricity prices can fluctuate over time with energy usage, including progressive, time of use pricing, critical peak pricing, and real-time pricing.

Table 1 shows an example of a progressive agent in which the unit price increases as energy consumption increases.

section Section 1 Second section Section 3 4th section ... Cumulative Usage [Kwh] To 100 101-200 201-300 301-400 ... Unit price (KRW / Kwh) 55.10 113.80 168.30 248.60 ...

FIG. 9A illustrates a time-of-sale plan (TOU) mainly used in shopping malls, factories, large buildings, and the like, and prices of electricity vary according to time zones. 9B shows a critical peak rate plan (CPP), wherein the price of electricity varies depending on the time of day, and especially the price in the peak period is very high. 9C shows a real time plan (RTP), wherein the price of electricity fluctuates in real time.

The analyzing means 22 may predict the current energy usage fee of the individual electric device by using Equation 1 below.

Where k is a variable that distinguishes an electrical device, i is a variable that distinguishes each unit time that the electric device #k was operating, M (k) is an energy usage fee for the electric device #k, and Q (k, i) is The energy consumption in time interval i of electrical device #k, P (i), is the price of electricity in time interval i.

The total energy usage fee MT considering all of the electric devices can be estimated as shown in Equation 2 below.

Where n is the number of electrical devices, k is a variable identifying the electrical device, and M (k) is the energy usage fee for the electrical device #k.

In addition, the analysis means 22 may calculate the energy usage fee or the total energy usage fee of the individual electric device through at least two time points through Equation 1 and Equation 2 and predict a future energy use rate based on the change rate. .

Here, the future point of time for predicting the energy usage fee may be set in units of day, week, month, year, or the like, or may be set at a certain point in the future.

In the latter, the specific point in time may be the point in time at which the user is prescribed to pay the energy usage fee, for example the last day of the month.

The analysis means 22 predicts the future energy usage fee may be configured in various ways, and in particular, may be predicted using a linear linear function or may be predicted using a nonlinear function of two or more orders.

10 to 13, various methods of analyzing the means 22 for predicting future energy usage fee will be described.

In the past, the energy usage fee at the time t1 (the energy usage fee of the individual electric equipment or the total energy usage fee) is M1, and the energy usage fee at the current time t2 after a certain time has elapsed from t1 is M2. Assume that at some point t3, the energy usage fee is M3.

Then, the amount of change in energy use charges is dM, and the rate of change in energy use charges can be calculated as 'dM ÷ dt'.

Where dM is 'M2-M1' and dt is 't2-t1'.

10 illustrates an example of using a linear method for predicting future energy usage rates. The energy usage rates M3 at some point in time in the future may be predicted as in Equation 3 below.

11 is an example of using weights to predict future energy usage rates, and a method of using weights may be variously configured.

One example is a method of applying the weight 'C' to a value greater than 1, 1, or less than 1 depending on the rate of change of the energy usage fee. At this time, the energy usage fee M3 at some point in time t3 in the future may be estimated as in Equation 4 below.

12 is an example of using an exponential curve to predict the future energy usage fee, the energy usage fee M3 at some time in the future t3 can be predicted as shown in Equation 5 below.

Here, the value a may be determined based on the rate of change of the progressive charge or energy usage fee of the electricity price.

13 illustrates an example of using a log curve to predict future energy usage rates. The energy usage rates M3 at some point in time in the future may be predicted as shown in Equation 6 below.

Here, the value a may be determined based on the rate of change of the progressive charge or energy usage fee of the electricity price.

In addition, the analysis means 22 may use the information on the charging policy of the power company 11 to predict the actual bill to the user as the current or future energy usage fee.

Information regarding the charging policy of the electric power company 11 may include information such as basic fees, taxes, power factor rates, and rate benefits that are basically charged. Taxes may include VAT or various funds, and the rate benefit refers to the fact that certain industries, such as the knowledge services industry, have lower energy usage rates than others.

As a specific example in this regard, the fee to be actually charged to the user may be set as 'energy use fee + surcharge'.

At this time, electricity charges will be determined as 'power consumption × unit price + base rate', surcharges as 'electric power industry base fund + value added tax', electricity industry base fund as 3.7% of energy use fee, and value added tax as 10% of energy use fee. Can be.

Here, the portion of the 'power consumption × unit price' constituting the energy usage fee is a value predicted through Equations 1 to 6.

In addition, the analysis means 22 may predict the lifespan of the individual electric devices through the use time or efficiency analysis of the individual electric devices.

For example, the remaining life can be predicted by comparing the lifespan of each electric device that has been previously input or input by the user with the usage time of the individual electric devices that are identified through the estimating means 21.

The analysis means 22 corresponds to the individual electric devices 16-1 to 16-k by analyzing the various energy-related information analyzed, for example, the amount of power consumed, the remaining life, the current energy use rate, and the future energy use rate of the individual electric device. It transmits to the first receiving means (25-1 ~ 25-k) provided.

The analyzing means 22 may also be configured to monitor whether the predicted individual energy bill or the total energy bill exceeds the upper limit set by the user.

In this embodiment, the analyzing means 22 may provide a user interface (UI) that allows the user to set the upper limit value information, or may receive the upper limit value set by the user from another device.

 The analyzing means 22 may transmit a warning message to the user's mobile terminal or IHD (In Home Display) when the estimated individual energy use fee or the total energy use fee exceeds the upper limit.

In this case, a warning message may be transmitted through various communication interfaces such as a short range wireless communication network or an internet network, and in particular, may be transmitted to a user's mobile phone through a mobile communication network.

The first receiving means 25-1 to 25-k and the display means 26-1 to 26-k are provided to correspond to the electrical devices 16-1 to 16-k one-to-one.

Various energy-related information grasped by the estimating means 21 and the analyzing means 22, for example, the usage time, power consumption, remaining life, current energy usage fee, future energy usage fee, state of exceeding the upper limit, etc. When it is transmitted through various wired or wireless communication methods, it is received by the first receiving means 25-1 to 25-k provided corresponding to the individual electric devices 16-1 to 16-k.

The first receiving means 25-1 to 25-k transfers the energy related information received from the estimating means 21 and the analyzing means 22 to the display means 26-1 to 26-k.

Then, the display means 26-1 to 26-k visually output the energy related information through the display screen so that the user can check the energy related information of the individual electric device.

14 shows an embodiment of the energy display device 30 according to the present invention, wherein the energy display device 30 includes at least the estimating means 21, the analyzing means 22, and the first receiving means 25-1. And the display means 26-1.

For convenience of description, only one first receiving means 25-1 and the display means 26-1 are shown, but the first receiving means 25-1 and the display means 26-1 are provided to each electric device. It is provided in a one-to-one correspondence.

The first receiving means 25-1 and the display means 26-1 may be configured as a single device attached to the outside or the periphery of the electric device 16-1.

As shown in FIG. 15, the energy display device 30 may further include second receiving means 23 for receiving price information of electricity over time from the central server 15.

The roles of the estimating means 21 and the analyzing means 22 constituting the energy display device 30 may be configured to be performed by the meter 13.

The estimating means 21, the analyzing means 22, the second receiving means 23, the first receiving means 25-1, and the display means 26-1 constituting the energy display device 30 are the energy described above. Since it plays the same role as that of the display system, duplicate description will be omitted.

Referring to FIG. 16, a specific embodiment of the meter 13 serving as the estimating means 21 and the analyzing means 22 will be described.

The first communication module 13-1 communicates with the central server, and the second communication module 13-2 transmits energy related information to each electric device 16-1 to 16-k.

The metering section 13-4 detects the usage information of the electric energy flowing through the electric line 11-1, for example, the total amount of energy used.

The display unit 13-5 visually displays various types of information related to the operation of the meter.

The input unit 13-7 allows a user to input a command or information regarding the operation of the meter through various input devices such as a key button or a touch screen.

The memory 13-6 stores and holds driving programs and data necessary for the operation of the meter.

The driving program includes a program for allowing the meter to perform the role of the estimating means 21, the analyzing means 22, the second receiving means 23, and the like.

The memory 13-6 stores energy usage information per unit time for each electric device, information for communicating with the first receiving means 25-1 to 25-k corresponding to each electric device, and the like.

In FIG. 17, examples of information stored in the memory 13-6 show energy usage information per unit time of a corresponding electric device according to the type of each electric device, and communication information for transmitting energy related information to each electric device. The communication information may include a unique ID for each electric device.

Such information may be pre-stored in the memory 13-6 at the time of manufacture, or may be configured to be input by the user 12 through the input unit 13-7.

The processor 13-3 collectively controls the operation of the meter 13, and may be a microprocessor or a central processing unit (CPU).

The processor 13-3 controls the meter 13 according to the drive program of the memory 13-6 when the meter 13 starts to drive, according to each embodiment of the energy display device 30 according to the present invention. To work.

That is, the processor 13-3 estimates the operation state of the individual electric device by using the total energy usage information detected by the metering unit 13-4, and compares the estimated information with the first communication module 13-1. Using the price information of electricity received from the central server 15 through the analysis of various energy-related information, such as the use time, power consumption, remaining life, current energy usage fee, future energy usage fee of the individual electric equipment, and analyzed The energy-related information is transmitted to each electric device through the second communication module 13-2.

FIG. 18 illustrates a specific example of an apparatus 400 for performing the roles of the first receiving means 25-1 and the display means 26-1. The communication module 410, the processor 420, and the memory ( 421, the display module 430, and the like.

The processor 420 collectively controls the apparatus 400 by operating according to a driving program and data stored in the memory 421.

That is, the energy-related information transmitted from the meter 13 is received through the communication module 410, processed, and transmitted to the display module 430, and the display module 430 visually displays the energy-related information.

FIG. 19 illustrates a state in which the device 400 of FIG. 18 is attached to the outside or the periphery of the refrigerator 10-1 to help understand the description.

The screen of the device 400 outputs various energy-related information such as a usage time, a remaining life, a current energy usage fee, and an expected future energy usage fee of the refrigerator 10-1 corresponding to the electronic device.

The device 400 may be fixedly attached to the outside or the periphery of each electric device, or may be configured to be freely detachable.

For example, the device 400 is not only an outer case A of an electric device such as the refrigerator 10-1, but also an upper surface B of the table 10-2 located around the electric device, or a peripheral device of the electric device. It may be attached to the periphery of the electric device, such as the wall surface (C), may be configured to be freely detachable.

In addition, the apparatus 400 is information or operation time information of the operation of the electric device that can be transmitted by the estimation means 21, the unit time of the electric device that can be transmitted by the analysis means 22 Various energy-related information may be displayed, such as the amount of electricity consumed in the section, the accumulated power consumption of the corresponding electric device, the state of exceeding the upper limit value, and the price of electricity over time.

Such information may be displayed through various techniques such as images, graphics, graphs, and videos, as well as simple text, and may also display other additional information that may help users to use rational energy.

An embodiment of an energy display method according to the present invention will be described in detail with reference to FIG. 20.

First, the meter measures the total energy usage per unit time (S351).

As a meter, a smart meter may be used.

If the total energy usage varies as a result of the measurement in step S351, the operating amount of the individual electrical equipment is estimated by comparing the amount of variation with the energy usage per unit time of each electrical equipment previously input (S352).

That is, in step S352, when the total energy usage per unit time measured by the meter changes as described with reference to FIGS. 3 to 8, the corresponding variation amount is compared with the energy usage information per unit time of each electric device that is input in advance. Find a match within the margin of error.

If the amount of change in the total energy consumption per unit time is positive, the corresponding electric device is in the on-off state.If the amount of change in the total energy use per unit time is negative, the electric device is in the on state. It is assumed that the state is turned off.

In this case, the energy usage information per unit time of each electric device may be input in advance when the meter is manufactured, or may be configured to be input by the user.

When the operation state of each electric device is estimated through step S352, the usage time of each electric device can be known, and through this, various energy such as power consumption of each electric device, current energy usage fee, future energy usage fee, remaining life, etc. The relevant information is analyzed and transmitted to the individual electric device (S353).

In operation S353, energy-related information may be transmitted using various wireless communication methods such as RF communication, Zigbee communication, and Bluetooth communication.

In operation S353, energy-related information may be transmitted using a wired communication method using a general wire, a power line, a LAN cable, a telephone line, or the like.

Steps S352 and S353 may be performed in the meter or may be configured to be performed in the central server as described with reference to FIG. 2.

If the energy-related information is transmitted in step S353, the device attached to the outside or the periphery of the individual electric device, for example, the device as described with reference to FIG. 18 receives the energy-related information and visually displays it on the display screen (S354). .

The apparatus for receiving and visually outputting energy-related information in step S354 is provided in a one-to-one correspondence with each electric device, and may be fixedly attached to each electric device or may be configured to be freely detachable.

Now, various energy related information transmitted to the individual electric device side in step S353 will be described.

First, in step S353 it is possible to analyze the power consumption of the individual electrical devices based on the usage time of each electrical device.

That is, since the operation state of each electric device is estimated in step S352, the use time of each electric device can be known through this information, and the amount of power consumption can be analyzed using the use time of each electric device and the energy consumption per unit time. .

The current energy usage rates for individual electrical devices can then be estimated based on the amount of power consumed and the price of electricity.

To this end, step S353 may further include receiving price information of electricity over time from the central server.

In operation S353, the current energy usage fee of the individual electric device may be basically estimated as in the example described through Equation 1 above, but if necessary, the energy use charge of the individual electric device may be estimated as in the example described through Equation 2 above. In total, it is possible to estimate the total energy bill.

Further, in step S353 based on the power consumption information and the price information of electricity, the future of each electric device through a linear method or a second or more non-linear method as in the example described through Equations 3 to 6 above. You can estimate your energy bill. At this time, the information on the utility billing policy can be used to predict the actual bill to the user as the current or future energy bill.

In operation S353, the lifespan of the individual electric devices may be predicted through the use time or the efficiency analysis of the individual electric devices.

Further, in step S353, it may be configured to monitor whether the predicted individual energy usage fee or the total energy usage fee exceeds the upper limit set by the user. In this embodiment, when the estimated individual energy usage fee or the total energy usage fee exceeds the upper limit, a warning message may be transmitted to the user's mobile terminal or an IHD (In Home Display).

It is to be understood that the present invention is not limited to the above-described embodiment, and various changes and modifications may be made by those skilled in the art without departing from the technical spirit of the present invention. to be.

11: Power Company 11-1: Electric Line
13: Meter 13-1: First communication module
13-2: second communication module 13-3: processor
13-4: Weighing section 13-5: Display section
13-6: Memory 13-7: Input Section
15: central server 16-1 ~ 16-k: electric equipment
21: estimation means 22: analysis means
23: second receiving means 25-1 to 25-k: first receiving means
26-1 to 26-k: display means 30: energy display device

Claims (33)

In the energy display system of the electrical equipment,
Energy related information display means attached to the outside or the periphery of the individual electrical appliance;
Estimating means for estimating individual energy of said individual electric device based on an amount of energy change over time in a meter;
Analyzing means for analyzing the amount of power consumed by the individual electric devices based on the analysis of the usage time of the individual electric devices; And
And an energy-related information display means attached to the outside or the periphery of the individual electric device comprises first receiving means for receiving the individual energy-related information of the individual electric device from the estimating means and the analyzing means. In the energy display system of the electrical equipment,
Energy related information display means attached to the outside or the periphery of the individual electrical appliance;
Second receiving means for receiving price information of electricity according to time from a central server;
Estimating means for estimating individual energy of said individual electric device based on an amount of energy change over time in a meter;
Analyzing means for analyzing the amount of power consumed by the individual electric devices based on the analysis of the usage time of the individual electric devices; And
And an energy-related information display means attached to the outside or the periphery of the individual electric device comprises first receiving means for receiving the individual energy-related information of the individual electric device from the estimating means and the analyzing means. The method according to claim 1 or 2,
And said meter comprises a smart meter. The method of claim 3, wherein
The smart meter stores energy usage information of the individual electric devices in a memory. The method according to claim 1 or 2,
The role of the estimating means and the analysis means is an energy display system of an electric device, characterized in that performed in a smart meter or a central server. The method according to claim 1 or 2,
And said analyzing means predicts at least one of a current energy usage fee and a future energy usage fee of said individual electrical equipment. The method according to claim 1 or 2,
And said analyzing means predicts the life of said individual electrical device. The method according to claim 1 or 2,
Energy display system of the electrical device, characterized in that the individual energy-related information of the individual electrical device is transmitted and received by a wireless communication method. The method of claim 8,
The wireless communication scheme includes at least one of an RF communication scheme, a Zigbee communication scheme, and a Bluetooth communication scheme. The method according to claim 1 or 2,
Energy display system of the electrical device, characterized in that the individual energy-related information of the individual electrical device is transmitted and received by a wired communication method. The method of claim 10,
The wired communication is an energy display system of an electric device, characterized in that made through at least one of a general wire, power line, LAN (LAN) cable, telephone line. In the energy display device of the electrical equipment,
Energy related information display means attached to the outside or the periphery of the individual electrical appliance;
Estimating means for estimating individual energy of said individual electric device based on an amount of energy change over time in a meter;
Analyzing means for analyzing the amount of power consumed by the individual electric devices based on the analysis of the usage time of the individual electric devices; And
And an energy related information display means attached to the outside or the periphery of the individual electrical equipment comprises first receiving means for receiving the individual energy related information of the individual electrical equipment from the estimating means and the analyzing means. In the energy display device of the electrical equipment,
Energy related information display means attached to the outside or the periphery of the individual electrical appliance;
Second receiving means for receiving price information of electricity according to time from a central server;
Estimating means for estimating individual energy of said individual electric device based on an amount of energy change over time in a meter;
Analyzing means for analyzing the amount of power consumed by the individual electric devices based on the analysis of the usage time of the individual electric devices; And
And an energy related information display means attached to the outside or the periphery of the individual electrical equipment comprises first receiving means for receiving the individual energy related information of the individual electrical equipment from the estimating means and the analyzing means. The method according to claim 12 or 13,
The meter is an energy display device of an electrical device, characterized in that it comprises a smart meter. The method of claim 14,
The smart meter is an energy display device of the electrical device, characterized in that for storing the energy usage information of the individual electrical device in the memory. The method according to claim 12 or 13,
The role of the estimating means and the analysis means is an energy display device of an electrical device, characterized in that performed in a smart meter or a central server. The method according to claim 12 or 13,
And said analyzing means predicts at least one of a current energy usage rate and a future energy usage rate of said individual electrical equipment. The method according to claim 12 or 13,
And said analyzing means predicts the life of said individual electrical device. The method according to claim 12 or 13,
Energy display device of the electrical device, characterized in that for transmitting and receiving the individual energy-related information of the individual electrical device by a wireless communication method. The method of claim 19,
The wireless communication method includes at least one of an RF communication method, a Zigbee communication method, and a Bluetooth communication method. The method according to claim 12 or 13,
Energy display device of the electrical device, characterized in that the individual energy-related information of the individual electrical device is transmitted and received by a wired communication method. The method of claim 21,
The wired communication is an energy display device of an electric device, characterized in that via at least one of the general wire, power line, LAN (LAN) cable, telephone line. In the energy display method of the electrical equipment,
A display step of displaying energy related information outside or around an individual electric device;
An estimating step of estimating individual energy of the individual electric device based on an amount of energy change over time in a meter;
An analyzing step of analyzing the power consumption of the individual electric devices based on the analysis of the use time of the individual electric devices; And
And a display step of displaying energy related information outside or around the individual electric device comprises receiving the individual energy related information of the individual electric device from the estimating step and the analyzing step. In the energy display method of the electrical equipment,
A display step of displaying energy related information outside or around an individual electric device;
Receiving price information of electricity over time from the central server;
An estimating step of estimating individual energy of the individual electric device based on an amount of energy change over time in a meter;
An analyzing step of analyzing the power consumption of the individual electric devices based on the analysis of the use time of the individual electric devices; And
And a display step of displaying energy related information outside or around the individual electric device comprises receiving the individual energy related information of the individual electric device from the estimating step and the analyzing step. The method of claim 23 or 24,
The energy display method of the electric device, characterized in that the meter comprises a smart meter. The method of claim 25,
The smart meter stores energy usage information of the individual electric device in a memory. The method of claim 23 or 24,
The energy estimating method of the electric device, characterized in that the estimating step and the analysis step is performed in a smart meter or a central server. The method of claim 23 or 24,
Wherein said analyzing step predicts at least one of a current energy usage fee and a future energy usage fee of said individual electrical device. The method of claim 23 or 24,
And the analyzing step predicts the lifespan of the individual electric devices. The method of claim 23 or 24,
The energy display method of the electrical device, characterized in that for transmitting and receiving the individual energy related information of the individual electrical device by a wireless communication method. 31. The method of claim 30,
The wireless communication method may include at least one of an RF communication method, a Zigbee communication method, and a Bluetooth communication method. The method of claim 23 or 24,
The energy display method of the electrical device, characterized in that for transmitting and receiving the individual energy related information of the individual electrical device by a wired communication method. 33. The method of claim 32,
The wired communication is an energy display method of the electric device, characterized in that made via at least one of the general wire, power line, LAN (LAN) cable, telephone line.

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