KR20230006398A - Method and system for monitoring and analyzing power consumption - Google Patents

Abstract

A system and method for monitoring and analyzing power consumption in a home are disclosed. The disclosed power consumption monitoring and analysis system includes a smart meter that monitors and analyzes the power consumption of each household electronic device to generate periodic power consumption information and instantaneous event information; an automatic meter reading device that receives the periodic power amount information from the smart meter in a pull manner through a first channel; and an application server receiving the instantaneous event information from the smart meter in a push manner through a second channel, wherein each of the first and second channels is a channel to which different communication interfaces are assigned.

Description

Power consumption monitoring and analysis system and method {METHOD AND SYSTEM FOR MONITORING AND ANALYZING POWER CONSUMPTION}

The present invention relates to systems and methods for monitoring and analyzing power consumption in a home. This research was supported by the Korea Electric Power Corporation's 2020 Selected Basic R&D Project Research Fund (Task Number: R20XO03-07).

A smart meter that measures power consumption based on a time period generates power usage information for a corresponding period between 1 minute and 60 minutes according to periodic time. Recently, research on smart meters that generate event information by measuring instantaneous power has been actively conducted.

On the other hand, smart meters share generated information with multiple entities. In this case, information is generally shared through one interface and one channel. Therefore, when a failure occurs in a corresponding channel, a problem may occur in sharing power information, and leakage of power information in an increasingly sophisticated smart grid system may cause problems in overall power supply and demand planning.

Related prior art documents include Korean Registered Patent Nos. 10-1172602, 10-1656522, 10-2234485, and 10-2060301, and Korean Patent Publication Nos. 2014-0057746 and 2016-0112736.

An object of the present invention is to provide a power consumption monitoring and analysis system capable of effectively transmitting periodic power consumption information and instantaneous event information generated according to a result of monitoring power consumption according to characteristics of the information.

In addition, the present invention is to provide a power consumption monitoring and analysis system that can stably transmit information generated by a smart meter using a plurality of channels and communication interfaces.

In addition, the present invention is to provide a power consumption monitoring and analysis system capable of easily predicting a dangerous situation for residents or failure of electronic devices through monitoring and analysis of instantaneous power.

According to one embodiment of the present invention for achieving the above object, a smart meter for monitoring and analyzing the power consumption of each household electronic device to generate periodic power amount information and instantaneous event information; an automatic meter reading device that receives the periodic power amount information from the smart meter in a pull manner through a first channel; and an application server that receives the instantaneous event information from the smart meter in a push manner through a second channel, wherein each of the first and second channels is a channel to which different communication interfaces are allocated. A monitoring and analysis system is provided.

According to one embodiment of the present invention for achieving the above object, monitoring the power consumption of each electronic device in the house; and analyzing the power consumption to generate periodic power amount information and instantaneous event information, wherein the generating of the instantaneous event information includes monitoring instantaneous power of the electronic device and failure information of the electronic device. Alternatively, a power consumption monitoring and analysis method for generating the instantaneous event information including dangerous situation information of residents of the house is provided.

According to an embodiment of the present invention, instantaneous event information generated in real time according to instantaneous power of an electronic device is transmitted in a push method, so that response to the instantaneous event information can be quickly performed.

In addition, according to an embodiment of the present invention, information of the smart meter is transmitted through multiple channels, so that information can be transmitted and received between the smart meter and various entities through various paths even if a failure occurs in a specific channel.

In addition, according to one embodiment of the present invention, by monitoring and analyzing the instantaneous power of the electronic device, a dangerous situation for a resident or a failure of the electronic device can be easily predicted.

1 is a diagram for explaining a power consumption monitoring and analysis system according to an embodiment of the present invention.
2 is a diagram for explaining a power consumption monitoring and analysis method according to an embodiment of the present invention.
3 is a diagram for explaining a power consumption monitoring and analysis method according to another embodiment of the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure.

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

1 is a diagram for explaining a system for monitoring and analyzing power consumption according to an embodiment of the present invention.

Referring to FIG. 1 , a power consumption monitoring and analysis system according to an embodiment of the present invention includes a smart meter 110, an automatic meter reading device (DCU: Data Concentrator Unit, 120), and an application server (Application Server, 130). do. And, depending on the embodiment, a power manager, an energy management system (EMA: Energy Management Agent, 140), and an environmental sensor 150 may be further included.

The smart meter 110 monitors and analyzes the power consumption of each electronic device in the home and generates periodic power amount information and instantaneous event information. The periodic power amount information refers to information on the amount of power consumed in a house that is periodically measured, and the electronic device refers to a device using power.

The smart meter 110 generates instantaneous event information by monitoring and analyzing the instantaneous power of the electronic device. That is, the instantaneous event information is information generated instantaneously when a predetermined condition is satisfied, unlike periodic power amount information, and may be generated in real time according to a monitoring result of instantaneous power. The instantaneous event information may include information about failures of electronic devices and dangerous situation information of residents of the house. Here, the dangerous situation information may include information about the health of residents, intrusion by outsiders, fire, or electric leakage.

Depending on the embodiment, the smart meter 110 may generate instantaneous event information by receiving the temperature, humidity, control signals of electronic devices, and arc data collected by the environmental sensor 150 in the home.

The automatic meter reading device 120 receives periodic power amount information from the smart meter 110 in a pull method through a first channel. The automatic meter reading device 120 may perform meter reading on household power consumption using periodic power amount information, and transmit various information provided by the power manager to the smart meter 110 .

The application server 130 receives instantaneous event information from the smart meter 110 in a push method through the second channel. The second channel may be a channel physically separated from the first channel or a channel physically identical to the first channel, but logically different from each other.

The application server 130 performs a corresponding action according to the instantaneous event information. For example, when instantaneous event information includes information that a resident's health condition is dangerous, the application server 130 may transmit a message to a preset guardian. Alternatively, when the instantaneous event information includes information on fire or electric leakage, the application server 130 may transmit a message to a fire station or police station or call a fire engine.

According to an embodiment of the present invention, unlike periodic power consumption information, instantaneous event information generated in real time according to the instantaneous power of an electronic device is transmitted to the application server 130 in a push method, so that the application server 130 Regardless of the request, whenever instantaneous event information is generated, it can be transmitted to the application server 130, and a response to the instantaneous event information can be made quickly.

Meanwhile, the energy management system 140 controls the amount of power supplied to the house according to a preset power usage plan. As an example, when the amount of power consumed in the home is equal to or greater than the threshold value, the amount of power supplied to the home may be adjusted by receiving a plan for limiting power consumption in the home from the smart meter 110 . The smart meter 110 may generate a power consumption limiting plan that can be utilized when power consumption needs to be limited by monitoring and analyzing the power consumption in the house. For example, the smart meter 110 may create a power consumption limiting plan that limits power use of an electronic device with low frequency of use or limits power use during a specific time period with low power consumption.

The energy management system 140 may communicate with the smart meter 110 through a third channel, and the third channel is a channel physically separated from the first and second channels or logically connected to the first and second channels. They may be different channels. In addition, different communication interfaces may be assigned to each of the first to third channels, and separate channels may be assigned between the automatic meter reading device 120, the application server 130, and the energy management system 140. .

Accordingly, according to an embodiment of the present invention, information can be transmitted and received between the smart meter and various entities through various paths even if a failure occurs in a specific channel.

FIG. 2 is a diagram for explaining a power consumption monitoring and analysis method according to an embodiment of the present invention. In FIG. 2, a power consumption monitoring and analysis method performed in a smart meter is described.

Referring to FIG. 2 , the smart meter according to an embodiment of the present invention monitors the power consumption of each electronic device in the home (S210), and at this time, it can also collect environmental information in the home.

Then, the smart meter analyzes power consumption and generates periodic power amount information and instantaneous event information (S220). The smart meter periodically monitors power consumption in the home to generate periodic power consumption information, and monitors the instantaneous power of electronic devices in the home to generate instantaneous power information including failure information of electronic devices or dangerous situation information for residents of the home, such as the elderly living alone. Event information can be created.

In step S220, the smart meter analyzes the power consumption, checks whether or not the power consumption pattern is abnormal (S221), and determines whether there is something unusual (S222). If there is a specific matter, the smart meter transmits instantaneous event information to the application server (S223), and when there is no special matter, it transmits periodic energy information to the automatic meter reading device (S224).

In step S220, the smart meter may determine that, as an example, a failure of the electronic device or a short circuit occurs when the instantaneous power of the electronic device is excessively high unlike the previous pattern.

In addition, smart meters can generate dangerous situation information for residents using instantaneous power from refrigerators, air conditioners, and heating devices. As an example, the smart meter can check the power consumption of the refrigerator, air conditioner, heating device, etc. by monitoring the power consumed by the pre-allocated outlet of the refrigerator, air conditioner, heating device, etc.

The smart meter may generate danger situation information for residents of the house by comparing the number of times the refrigerator door is opened at a preset meal time, which is calculated by monitoring the instantaneous power of the refrigerator, with a threshold value.

Since power consumption of the refrigerator instantaneously increases when the refrigerator door is opened, the smart meter may determine that the refrigerator door is opened when the instantaneous power of the refrigerator increases. In addition, if the refrigerator door is not opened during mealtime, the resident may not be able to eat due to illness or a fall. can be judged to be

At this time, the threshold value may be adjusted according to the indoor temperature or season. Since it is possible not to store food in the refrigerator when the temperature inside the home is high or when the temperature inside the home is low or in winter unlike summer, the door of the refrigerator may not be opened even during mealtime. Accordingly, the threshold value may be smaller in a state in which the temperature in the home is low or in winter compared to that in the state in which the temperature in the home is high or in the summer.

The smart meter can set meal times by monitoring the instantaneous power of kitchen appliances and kitchen lights. The smart meter can set the time interval between the point at which the power consumption of kitchen appliances and kitchen lights increases and the point at which it decreases as the meal time, and the smart meter calculates the average meal time during the preset period as the meal time. can be set to Since kitchen appliances and kitchen lights can be used outside of mealtime, the smart meter determines the top n time intervals in the order of the longest time intervals among the time intervals between the time when the power consumption of kitchen appliances and kitchen lights increases and decreases. Meal time can be calculated by averaging each. Here, n may be set to a value between 1 and 3 in consideration of the fact that meal times usually exist three times a day and the life patterns of residents.

In addition, the smart meter calculates the time between when power consumption increases and decreases for each weekday and holiday, and sets meal times differently for each weekday and holiday.

And, as described above, the smart meter may generate dangerous situation information by monitoring the instantaneous power of not only the refrigerator but also the air conditioner or heating device. The smart meter may monitor the instantaneous power of a cooling or heating device according to the temperature or season in the house, determine whether the cooling or heating device is operating, and generate dangerous situation information depending on whether the cooling or heating device is operating. The smart meter is a dangerous situation for the residents of the house when the temperature in the house is high or cooling devices such as fans do not work in summer, and when the temperature in the house is low or heating devices such as heaters do not work in winter. This can cause the occupant to determine that the air conditioning or heating system is not operating.

On the other hand, since the above-mentioned danger situation for a resident occurs when the resident is located in the premises, the smart meter can monitor the instantaneous power of lights or TVs to determine whether the resident is located in the house. . When power consumption of lights or TVs increases, the smart meter may determine that the resident is located in the house.

In addition, the smart meter may use an increase or decrease in power consumption of the TV, which occurs according to a channel change of the TV after the power consumption of the TV increases, in order to more accurately determine whether the resident is located in the house. Since the TV's power consumption increases and then decreases as the TV's channel changes, the smart meter shows a pattern in which the TV's power consumption increases and decreases after the TV's power consumption increases, and the resident is located in the house and monitors the TV can be judged to be manipulating.

Also, according to embodiments, the smart meter may determine whether the resident is located in the premises by monitoring the instantaneous power of electronic devices frequently used by the resident in addition to the TV. For example, since AV devices such as computers and audio also have patterns of increase and decrease in power consumption according to channel manipulation or execution of specific functions, the smart meter uses the pattern of increase and decrease in power consumption of AV devices to determine whether a resident is located in the house can do.

According to one embodiment of the present invention, by monitoring and analyzing the instantaneous power of electronic devices, dangerous situations for residents or failures of electronic devices can be easily predicted.

3 is a diagram for explaining a power consumption monitoring and analysis method according to another embodiment of the present invention. In FIG. 3, the power consumption monitoring and analysis method of the power consumption monitoring and analysis system described above is described as an embodiment.

Referring to FIG. 3 , the smart meter 110 transmits and receives data to and from the automatic meter reading device 120 , the application server 130 and the energy management system 140 .

The smart meter 110 collects data from electronic devices and environmental sensors, receives a request for periodic power consumption information from the automatic meter reading device 120, and transmits periodic power consumption information about electronic devices in the home to the automatic meter reading device 120 ( S310). The automatic meter reading device 120 performs a meter reading in the house using periodic energy information.

In addition, the smart meter 110 determines the threshold of usage according to the demand response (DR) demand provided by the power manager, various demand response conditions, power rate, incentives for power saving, power usage limit information, etc. may be provided from the automatic meter reading device 120 (S310).

The smart meter 110 transmits instantaneous event information to the application server 130, and the application server 130 acquires various energy-related information through data analysis and processing necessary for decision-making and energy control based on this information. Information on the method may be received from the application server 130 (S320). Further, the application server 130 may receive information about whether energy management is being performed according to the information provided by the application server 130 from the smart meter 110 .

In addition, the application server 130 may analyze the activity pattern of the residents using the instantaneous event information. The smart meter 110 may transmit instantaneous event information including information about when the instantaneous power of the electronic device increases or decreases to the application server 130, and the application server 130 monitors the activities of the residents through this. patterns can be analyzed. For example, if the instantaneous power of the washing machine frequently increases and decreases, and the instantaneous power of the bathroom lamp frequently increases and decreases, the application server may analyze that the resident frequently does laundry and frequently uses the bathroom as an activity pattern. . Analysis of this activity pattern may be performed by a smart meter, and the smart meter may determine that a dangerous situation for a resident has occurred even when a change occurs in this activity pattern.

The smart meter 110 transmits a plan for limiting power consumption in the home to the energy management system 140 when the amount of power consumed in the home is equal to or greater than the preset energy limit, and the energy management system 140 transmits the plan for limiting the power consumption in the home. Accordingly, the amount of power supplied to the house may be adjusted (S330).

The technical contents described above may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program commands recorded on the medium may be specially designed and configured for the embodiments or may be known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. - includes hardware devices specially configured to store and execute program instructions, such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, as well as machine language codes such as those produced by a compiler. A hardware device may be configured to act as one or more software modules to perform the operations of the embodiments and vice versa.

As described above, the present invention has been described by specific details such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , Those skilled in the art in the field to which the present invention belongs can make various modifications and variations from these descriptions. Therefore, the spirit of the present invention should not be limited to the described embodiments, and it will be said that not only the claims to be described later, but also all modifications equivalent or equivalent to these claims belong to the scope of the present invention. .

Claims (12)

A smart meter that monitors and analyzes power consumption of each electronic device in the home and generates periodic power consumption information and instantaneous event information;
an automatic meter reading device that receives the periodic power amount information from the smart meter in a pull manner through a first channel; and
An application server receiving the instantaneous event information from the smart meter in a push method through a second channel;
Each of the first and second channels is a channel to which different communication interfaces are assigned.
Power consumption monitoring and analysis system.
According to claim 1,
the smart meter
Monitoring the instantaneous power of the electronic device to generate the instantaneous event information including failure information of the electronic device or dangerous situation information of residents in the house
Power consumption monitoring and analysis system.
According to claim 2,
the smart meter
Generating the dangerous situation information by comparing the number of openings of the refrigerator door at a preset meal time, calculated by monitoring the instantaneous power of the refrigerator, with a threshold value
Power consumption monitoring and analysis system.
According to claim 2,
The smart meter
Depending on the temperature or season in the house, monitoring the instantaneous power of the cooling unit or heating unit to determine whether the cooling unit or heating unit is operating, and generating the dangerous situation information according to whether the cooling unit or heating unit is operating
Power consumption monitoring and analysis system.
According to claim 1,
An energy management system for controlling the amount of power supplied to the home by receiving a plan for limiting power consumption in the home from the smart meter when the amount of power consumed in the home is greater than or equal to a threshold value
Power consumption monitoring and analysis system further comprising a.
monitoring power consumption of each electronic device in the home; and
Analyzing the power consumption to generate periodic power amount information and instantaneous event information;
The step of generating the instantaneous event information is
Monitoring the instantaneous power of the electronic device to generate the instantaneous event information including failure information of the electronic device or dangerous situation information of residents in the house
How to monitor and analyze power consumption.
According to claim 6,
The step of generating the instantaneous event information is
Generating the dangerous situation information by comparing the number of openings of the refrigerator door at a preset meal time, calculated by monitoring the instantaneous power of the refrigerator, with a threshold value
How to monitor and analyze power consumption.
According to claim 7,
The threshold is
A value that is adjusted according to the temperature or season of the house
How to monitor and analyze power consumption.
According to claim 7,
Setting the meal time by monitoring instantaneous power of kitchen appliances and kitchen lights
Power consumption monitoring and analysis method further comprising a.
According to claim 6,
The step of generating the instantaneous event information is
Depending on the temperature or season in the house, monitoring the instantaneous power of the cooling unit or heating unit to determine whether the cooling unit or heating unit is operating, and generating the dangerous situation information according to whether the cooling unit or heating unit is operating
How to monitor and analyze power consumption.
According to claim 6,
The step of generating the instantaneous event information is
Monitoring the instantaneous power of a light or TV to determine whether the resident is located in the house, and generating the dangerous situation information when the resident is located in the house
How to monitor and analyze power consumption.
According to claim 11,
The step of generating the instantaneous event information is
Determining whether the resident is located in the house using an increase or decrease in power consumption of the TV that occurs according to a channel change of the TV
How to monitor and analyze power consumption.

Images