KR102012933B1 - Smart home system - Google Patents

Abstract

The present invention provides a smart home system comprising: a plurality of smart plugs which are electrically connected to each of home appliances in a house, and measure, store, communicate, and display power usage information for each identified home appliance through an embedded home appliance identification algorithm; and a smart home analysis server for collecting load pattern information for each of the home appliances from the smart plugs, analyzing the collected load pattern information, and providing analyzed power information for each of the home appliances.

Description

Smart home system {SMART HOME SYSTEM}

The present invention relates to a smart home system, and more particularly, is electrically connected to each of the home appliances in the home, and measures, stores, communicates, and displays power usage information for each identified home appliance through an embedded home appliance identification algorithm. And smart load analysis server that collects load pattern information for each of the home appliances from the smart plugs and the smart plugs, analyzes the collected load pattern information, and provides power information for the analyzed home appliances. , Smart home system.

With the recent development of information and communication technology, information and communication technology is being applied to electronic devices mainly used in homes.

As such, smart electronic devices that can provide not only communication technology but also other functions in addition to the basic functions provided by the electronic devices, are being developed one after another.

As such, smart electronic devices used in homes are commonly referred to as smart home appliances.

In the case of smart home appliances, smart home appliances often include power measurement functions themselves, and in most cases, the information can be shared with other devices using a wired / wireless external interface.

Smart plug technology has long been launched and marketed to measure the use of power devices, and is directly connected to each device 1: 1. ON / OFF is possible.

Demand management for mobile operators and power companies to connect the smart plug and network to a large number of consumers to collect power consumption data directly from the remote, and to contribute to stabilizing the national electricity supply and demand by turning the load on and off In order to utilize the method as an automatic identification function of the home appliance, the prior art did not provide a specific technology for this.

For this reason, the smart plug according to the prior art can be easily pulled out and replaced with another home appliance. When a plurality of smart plugs are installed, the smart plug is connected to another device other than the previously registered home appliance.

In addition, according to the prior art, an error that may occur when the previously registered home appliances and other home appliances are connected and remotely turned on (ON) / off (OFF) not only causes inconvenience to the user, but also moves There is a problem in that telcos and electric power companies collect wrong power consumption information, which becomes a problem in terms of demand management and leads to errors of basic data for big data analysis.

Republic of Korea Patent Publication No. 10-2016-0043490

The technical problem to be solved by the present invention, smart plugs that are electrically connected to each of the home appliances in the house, and measures, stores, communicates and displays power usage information for each identified home appliance through a built-in home appliance identification algorithm. And a smart home analysis server that collects load pattern information for each of the home appliances from the smart plugs, analyzes the collected load pattern information, and provides the analyzed home appliance power information. To provide.

The smart home system according to the present invention for achieving the above technical problem, is electrically connected to each of the home appliances in the house, measuring, storing, communication and power usage information for each home appliance identified through the built-in home appliance identification algorithm Indicating smart plugs; And a smart home analysis server that collects load pattern information for each of the home appliances from the smart plugs, analyzes the collected load pattern information, and provides power information for each analyzed home appliance. .

The present invention analyzes the load characteristics of major home appliances in the home in advance, and automatically recognizes the corresponding pattern to periodically verify and identify whether the consumer matches the name of the registered home appliances. Not only can it be prevented from being delivered to the upper smart home analysis server, but there is also a technical effect that can solve consumer complaints caused by malfunctions such as ON / OFF of the home appliance power.

1 schematically shows the configuration of a smart home system according to the present invention.
Figure 2 shows the configuration of the smart plug device according to the invention in detail.
Figure 3 shows the configuration of the smart home analysis server according to the present invention in detail.
Figure 4 is an embodiment according to the present invention, it is shown to explain the automatic identification method in the smart home analysis server when the connection of the smart plug and home appliances is changed.
5 is a flowchart illustrating a process of implementing an automatic identification method of home appliances in a smart home analysis server according to the present invention.

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

1 schematically shows the configuration of a smart home system according to the present invention.

Referring to FIG. 1, the smart home system 1000 according to the present invention includes a smart home H10, a user mobile terminal 20, and a smart home analysis server 200.

Smart home (H10) has a certain space in the home so that the smart home system 1000 can monitor and control the status of the home appliances through the home network, the home appliance group 10 and smart installed in the predetermined space Plug group 100.

Here, the home appliance group 10 includes a plurality of first home appliances 10-1 to N-th home appliances 10-N, for example, a TV, a refrigerator, an air conditioner, a heater, a water purifier, an audio system, and the like. It may include a variety of home appliances provided in the house.

The smart plug group 100 includes a plurality of first smart plugs 100-1 to N-th smart plugs 100 -N, which are the first home appliances 10-1 to N-th home appliances 10. -N) is electrically connected to each other to measure, store, communicate, and display power usage information of home appliances (10-1 to 10-N). The detailed description will be described later with reference to FIG. 2.

The user mobile terminal 20 is a portable terminal possessed by a user (for example, a smartphone, a tablet PC, a PDA, etc.), and accesses the smart home analysis server 200 through the network N10 to the smart home analysis server 200. ) Provides real-time information on the power usage of the home appliance.

In addition, the user mobile terminal 20 has a built-in dedicated application for setting the smart plug, the first smart plug (100-1) to the N-th smart plug (100-N) of the smart plug group 100 through the network (N10) ) Can be used to register and register the first home appliances 10-1 to N-th home appliances 10-N, respectively, which will be described later in FIG. 2.

The network N10 may be, for example, wireless communication such as Zigbee, RF, WiFi, 3G, 4G, LTE, LTE-A, and Wireless Broadband Internet, or power line communication (PLC). ), Optical communication, and wired communication such as a hybrid fiber coaxial (HFC) network may be used, but is not limited thereto.

The smart home analysis server 200 is connected to each of the first home appliance 10-1 to the Nth home appliance 10-N from the first smart plug 100-1 to the N-th smart plug 100 -N. Collect load pattern information (such as voltage, current, frequency, harmonics, power factor, etc.), and analyze the collected load pattern information (such as voltage, current, frequency, harmonics, power factor, etc.) The database is divided into load patterns and changes in load patterns for each operation mode, and a database is generated, and upon request, the user mobile terminal 20 transmits power usage information of the home appliance in real time. The description will be described later with reference to FIGS. 3 and 5.

Figure 2 shows the configuration of the smart plug device according to the invention in detail.

2, the smart plug device 100a according to the present invention may include a setup setting unit 110, a power detector 120, a communication unit 130, a data storage unit 140, a device identification unit 150, and a device. The change processor 160, the power cut-off and connection unit 170, the status display unit 180, and the controller 190 are included.

The setup setting unit 110 registers and sets a home appliance and a smart plug in a form of 1: 1 in connection with an external user mobile terminal 20 during a setup operation.

In detail, the setup setting unit 110 matches the currently connected smart plug with the corresponding home appliance to 1: 1 according to the operation of a dedicated application for setting the smart plug embedded in the user mobile terminal 20 (for example, 1 smart plug 100-1: TV, second smart plug 100-2: washing machine, etc.) to perform the initial setting registration operation.

In this case, when the user directly connects the home appliance to the smart plug, and then runs a dedicated application for setting the smart plug built in the user mobile terminal 20, the user sends a "user guide voice message" through the smartphone speaker. On / Off of power, change of operation mode (e.g. TV: ON / OFF, backlight adjustment power saving mode, washing machine: ON / OFF, dehydration, rinsing, drying operation) according to voice announcement. And so on.

In this case, the reason why the user sets and registers the home appliance using the "user guide voice message" is that the power consumption pattern mode of the home appliance is varied (eg, washing machine: washing, dehydration, drying, rinsing, etc.) by mode. Since the power consumption patterns are different, and the fingerprint information unique to the device for recognizing the appliances such as power consumption, frequency, harmonics, and impedance is different each time, it is a kind of guide information for effectively displaying this and using it for identification. It is to utilize the voice announcement.

This is because if there is no "user guide voice message", it may be difficult to pre-learn in a specific operation, and the error may be generated by recognizing a pattern different from the storage pattern. The purpose is to register the operation status for each home appliance in a dedicated application in advance, and guide it in the form of voice so that various power consumption patterns are automatically learned from the smart plug.

The power detector 120 detects commercial power or standby power of a home appliance connected to a smart plug, for example, a power value according to a current value detected from a shunt resistor, which is a current detector, in real time. After the measurement is transmitted to the control unit 190.

In this case, the power detector 120 may use a current sensor IC, a metering IC, or a CT current detection method for current detection, and a metering IC for voltage detection.

The communication unit 130 provides an interface to communicate with an external user mobile terminal 20 or the smart home analysis server 200, such as Zigbee, RF, WiFi, 3G. Wireless communication such as 4G, LTE, LTE-A, and Wireless Broadband Internet, or wired communication such as power line communication (PLC), optical communication, and hybrid fiber coaxial (HFC) networks.

The data storage unit 140 stores various power data processed by the controller 190, and may use a nonvolatile memory such as a flash memory as a storage medium.

The device identification unit 150 determines the unique ID, type, operation, etc. of the corresponding home appliance by using the home appliance identification algorithm embedded therein.

In detail, the device identification unit may be manufactured by embedding a sensing device extracting voltage, current, harmonics, transient frequency information, etc. in the form of a digital signal processing (DSP) so as to be readable by the home appliance identification algorithm. 150 may determine the operation of each corresponding home appliance through a pattern analysis of the switching mode power supply (SMPS) of the home appliance and the intrinsic characteristic frequency of the motor.

That is, the device identification unit 150 determines the power on / off event of the home appliance through the frequency characteristic analysis on the transient phenomenon of the voltage generated when the home appliance operates, and operates the home appliance. Unique identification information (ID) and type of the home appliance can be determined using load characteristics of the home appliance such as a pattern, a size, and a transient time generated through a change in the time current, the voltage, and the like.

The device change processing unit 160 receives the connection change information from the external smart home analysis server 200 or the user mobile terminal 20 when the connection between the home appliance and the smart plug registered for the first time is changed. In order to automatically recognize the change of the device according to the information, a detailed description thereof will be described later with reference to FIGS. 4 and 5.

When the power cutoff and connection unit 170 receives the power cutoff command or the power cutback return command from the controller 190, the power cutoff and connection unit 170 cuts off or restores (connects) power of the corresponding home appliance.

The status display unit 180 provides a display device to make it easy to visually check the simple operation state of the smart plug from the outside.

For example, using a plurality of LED elements as a display device, the power on (On) / off (Off) state of the smart plug, connected / disconnected state of the home network, connected / disconnected state of the external smart home analysis server 200 The lights can be displayed using LED on / off and color.

The controller 190 may include a setup setting unit 110, a power detector 120, a communication unit 130, a data storage unit 140, a device identification unit 150, a device change processing unit 160, a power cutoff and a connection unit 170. And the status display unit 180.

Figure 3 shows the configuration of the smart home analysis server according to the present invention in detail.

Referring to FIG. 3, the smart home analysis server 200 according to the present invention includes a communication unit 210, a database unit 220, a data analysis unit 230, a status notification unit 240, and a control unit 250. do.

The communication unit 210 provides an interface to communicate with an external user mobile terminal 20 or smart plugs 100-1 to 100-N, such as Zigbee, RF, and Wi-Fi. Wireless communication such as (WiFi), 3G, 4G, LTE, LTE-A, and Wireless Broadband Internet, or wired communication such as power line communication (PLC), optical communication, and hybrid fiber coaxial (HFC) networks may be used.

The database unit 220 may store various power data processed by the data analyzer 230 and the controller 250, and may use a nonvolatile memory such as a flash memory as a storage medium.

As illustrated in FIG. 1, the data analyzer 230 may include the first household electrical appliance 10-1 through the Nth household electrical appliance from the first smart plug 100-1 to the Nth smart plug 100 -N. 10-N) Collect load pattern information (such as voltage, current, frequency, harmonics, power factor, etc.) for each, and analyze the collected load pattern information (such as voltage, current, frequency, harmonics, power factor, etc.) Derived information such as customer name, home appliance name, load pattern, and load pattern for each operation mode is derived.

In this case, the data analysis unit 230 recognizes the change information of the load pattern for each operation mode periodically, and automatically derives the connection change information between the home appliance and the smart plug registered for the first time, and changes the connection change information to an external user. By transmitting to the mobile terminal 20 to allow the smart plug to measure and store the correct power usage information, it will be described in detail with reference to FIG.

Figure 4 is an embodiment according to the present invention, it is shown to explain the automatic identification method in the smart home analysis server when the connection of the smart plug and home appliances is changed.

Referring to FIG. 4, the first smart plug 100-1: TV, the second smart plug 100-2: a washing machine (initial setting information) -------> first smart plug 100-1 ): Washing machine, second smart plug (100-2): When the home appliance is incorrectly connected to the smart plug inadvertently by the user (TV (change information after connection)), the data analysis unit 230 is a home appliance (washing machine, By comparing the change pattern of the load pattern of each operation mode with each other periodically (for example, every 5 minutes) and recognizing the difference from the initial setting information, the connection change information between the home appliance registered with the initial setting and the smart plug is automatically recognized. To derive.

That is, the data analysis unit 230 starts the first smart plug 100-1 newly recognized as a washing machine to measure and accumulate electricity usage information of the washing machine from the time of derivation based on the connection change information. The smart plug 100-2 newly recognizes as a TV and starts to measure and accumulate and store electricity usage information of the TV.

Next, the status notification unit 240 automatically sends an alarm to the external user mobile terminal 20, the connection change information between the first setting registered home appliance and the smart plug derived from the data analysis unit 230, the user Allows the smart plug to readjust the setup to measure and store correct power usage information.

The controller 250 controls the communication unit 210, the database unit 220, the data analysis unit 230, and the status notification unit 240.

5 is a flowchart illustrating a process of implementing an automatic identification method of home appliances in a smart home analysis server according to the present invention.

Hereinafter, a process of implementing an automatic identification method of a home appliance in the smart home analysis server 200 according to the present invention will be described with reference to FIGS. 1 to 5.

First, the smart home analysis server 200 is applied to each of the first home appliance 10-1 to the Nth home appliance 10-N from the first smart plug 100-1 to the N-th smart plug 100 -N. It has a first process (S10) for collecting the load pattern information (for example, voltage, current, frequency, harmonics, power factor, etc.) for.

Next, there is a second process (S20) for executing a learning procedure using the load pattern information for each home appliance collected in the first process (S10).

In this case, the execution of the learning process means that the characteristic information for each home appliance (for example, the name of the customer, the name of the home appliance, the load pattern, etc.) is compared with each other at regular intervals to perform a procedure for recognizing each specific home appliance. Learning results can be summarized in the form shown in Table 1 below.

Table 1

Referring to Table 1, information about a device identifier, a device name, a device type, a power state, a last change date, a sub device identifier, and power usage may be included.

Here, the sub device identifier may be an identifier of the smart plug, and the smart plugs may receive a power state of the corresponding electronic device from the electronic device or from the smart plug which is the sub device.

Next, the smart home analysis server 200 is based on the content learned through the second process (S20) of the first smart plug 100-1 to the N-th smart plug (100-N) and the first home appliance ( 10-1) to a third step (S30) for determining whether the connection information between the N-th home appliance (10-N) has changed (see Fig. 4).

Finally, the smart home analysis server 200 is the first smart plug (100-1) to the N-th smart plug (100-N) and the first home appliance (10-1) to the third step (S30) When it is determined that the connection information between the N household appliances 10-N has been changed, a fourth process S40 of automatically sending an alarm to the external user mobile terminal 20 is changed.

In the above description, the technical idea of the present invention has been described with the accompanying drawings, which illustrate exemplary embodiments of the present invention by way of example and do not limit the present invention. In addition, it is apparent that any person having ordinary knowledge in the technical field to which the present invention belongs may make various modifications and imitations without departing from the scope of the technical idea of the present invention.

1000: Smart Home System
H10: Smart Home
10: Home Appliance Group
10-1 ~ 10-N: 1st home appliances ~ Nth home appliances
100: smart plug group
100-1 to 100-N: 1st smart plug ~ Nth smart plug
20: user mobile terminal
200: smart home analysis server

Claims (5)

Smart plugs that are electrically connected to each of the home appliances in the house, and measure, store, communicate, and display power usage information for each identified home appliance through an embedded home appliance identification algorithm; And a smart home analysis server that collects load pattern information for each of the home appliances from the smart plugs, analyzes the collected load pattern information, and provides the analyzed home appliance power information;
The smart home analysis server periodically compares load pattern change information for each operation mode and recognizes the difference between the home appliance and the first setting information between the home appliance and the smart plug that is set to 1: 1 for the first time. It automatically checks the connection change information that is incorrectly matched. When the connection between the home appliance and the smart plug registered for the first time is changed, when the connection change information is received from an external smart home analysis server or a mobile terminal, the connection change information To automatically recognize the device change in accordance with;
When the connection between the smart plug and the home appliance is changed, the data analysis unit periodically compares the load pattern change information for each operation mode of the home appliance with each other and recognizes a difference from the initial setting information. The connection change information is automatically derived, and from the time point of derivation based on the connection change information, the first smart plug is newly recognized as a changed home appliance, and starts to measure and accumulate and store electricity usage information of the changed home appliance. The smart plug also newly recognizes the changed other home appliances and starts to measure and accumulate and store the electricity usage information of the changed other home appliances; The status notification unit automatically sends an alarm to the external mobile terminal of the connection change information between the first-set registered home appliance derived from the data analyzer and the smart plug, so that the smart plug can measure and store correct power usage information. Smart home system, characterized in that the setup can be readjusted. The method of claim 1, wherein the smart plugs,
A setup setting unit for registering and registering a home appliance and a smart plug with a 1: 1 by interworking with a dedicated application for setting a smart plug built in a home user mobile terminal;
A power detector configured to detect commercial power or standby power of respective home appliances connected to the smart plugs; And
And a device identification unit for identifying unique identification information (ID), types, and operating states of respective home appliances connected to the smart plugs using the home appliance identification algorithm. The method of claim 2, wherein the setup setting unit,
Smart home system, characterized in that by registering the operation mode for each home appliance registered in advance in the dedicated application in the form of "user guide voice message" by matching the home appliance and the smart plug to 1: 1. According to claim 1, wherein the power information for each home appliance,
Smart home system comprising the customer name, the name of the home appliance, the load pattern and the change of the load pattern for each operation mode. delete

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