KR20110017576A - Power supply apparatus capable of awaring electric appliances and their contextual locations and controlling power supplied to the same - Google Patents

Abstract

PURPOSE: A power supply apparatus capable of recognizing electric appliances and their contextual locations, and a controlling power supplied to the same are provided to easily analyze poser consumption and save the construction cost thereof. CONSTITUTION: A home network power control method comprises the steps of: extracting first marker information by identifying a first marker attached to a wall outlet(14) when an intelligent multi-plug adaptor is connected to the wall outlet; and recognizing the location of the electric appliances connected to the intelligent multi-plug adaptor from the position of the recognized wall outlet based on the first marker information.

Description

POWER SUPPLY APPARATUS CAPABLE OF AWARING ELECTRIC APPLIANCES AND THEIR CONTEXTUAL LOCATIONS AND CONTROLLING POWER SUPPLIED TO THE SAME}

The present invention relates to power consumption control of an electrical appliance, and more particularly, to an apparatus and method for determining the spatial location and temporal power consumption of an electrical appliance and controlling the power supply to the electrical appliance.

As part of a move to reduce energy consumption across the country, as well as reducing the power consumption of individual electrical products, the efficient distribution of power consumed in each home, office, business and facility has emerged as an important issue.

To this end, technologies for collecting and analyzing electricity usage information of individual electrical products and efficiently operating individual electrical products based on the collected information are being developed.

To this end, intelligent meter readers, i.e., smart meters, for remote meter reading for measuring power consumption in homes have been developed and used. Early smart meters among these smart meters extract the consumption pattern by using the load characteristics of the home appliances to be read. When the home appliances having various characteristics are operated at the same time, detailed measurements as well as the power consumption patterns are used. It was also difficult to identify home appliances.

To overcome this, devices for measuring power consumption at each port of a multi-plug adapter, commonly called multi-power taps, multi-taps, have been proposed. Power consumption measurements typically require high-speed sampling (for example, at least 120 Hz for 60 Hz AC power) and data processing. Sampling and data processing should exhibit a minimum (less than 1%) error rate for the recognition of individual appliances within a set of appliances, with expensive micros for sampling and data processing of power consumption at each outlet insert. Adopting a controller is actually difficult to commercialize.

To avoid this, we can think of how each sampler handles the data sampled by an external server, but this is not reasonable in consideration of communication load processing.

Furthermore, in order to determine the location of the electrical appliances, the locations of the electrical appliances and the multi-power taps being used must be registered one by one. If you do so in such a way as to register the electrical appliance and its location so that the central management unit can control the power supply to the electrical appliances through any user interface, then the user of the electrical appliance is switched off. If you switch positions and connect them to different power strips, you will not get the intended effect until you re-register the electrical appliance at the new position.

The problem to be solved by the present invention is an intelligent multi-plug adapter that can easily analyze the power consumption of the electrical product and can be manufactured at low cost, and a device that can determine the location where the electrical product is used without registering the electrical product one by one And providing a method.

An intelligent multi-plug adapter according to an aspect of the present invention for solving the above problems is a plug bundle having a first marker reader that can extract the first marker information from the first marker attached to the wall outlet; And a receiving circuit unit for receiving the first marker information, wherein the first marker information may be a digital code for identifying at least a position of the wall outlet.

Preferably, the electronic device may further include at least one power port having a second marker reader unit capable of identifying a second marker attached to a plug of an electrical appliance to be connected to extract second marker information. The information is a digital code capable of identifying at least a kind of the connected electrical appliance, and the receiving circuitry may receive the second marker information from the second marker reader.

Preferably, the first or second marker information may be embodied in the marker by any one or combination of physical, mechanical, chemical, electrical, magnetic, optical, and other natural principles.

Preferably, the first or second markers can be set directly by the user, respectively.

Preferably, the first or second marker reader unit may be configured to allow the user to directly set marker information despite the first or second marker, and the receiving circuit unit is embodied in the first or second marker. The marker information set by the user may be received in preference to the first or second marker information.

Preferably, the first marker information may be received in a serial bit string.

Preferably, the intelligent multi-plug adapter may further include an output interface for outputting the received first or second marker information to the outside.

Preferably, the intelligent multi-plug adapter may further include at least one measuring unit for measuring a power characteristic supplied through the at least one power port.

Preferably, the intelligent multi-plug adapter may further include at least one power control unit for controlling the supply of power supplied through the at least one power port.

According to another aspect of the present invention, an intelligent multi-plug adapter includes: at least one power port having a marker reader unit capable of extracting marker information from a marker attached to a plug of a connected electric appliance; And a receiving circuit unit for receiving the marker information, wherein the marker information may be a digital code for identifying at least a kind of the connected electrical appliance.

Preferably, the marker information may be embodied in the marker by any one or a combination of physical, mechanical, chemical, electrical, magnetic, optical, and other natural principles.

Preferably, the marker can be set directly by the user the marker information.

Preferably, the marker reader unit may be configured to allow the user to directly set marker information on the marker for the corresponding power port, and the receiving circuit unit may receive marker information set by the user.

Preferably, the marker information may be received in a serial bit string.

Preferably, the intelligent multi-plug adapter may further include an output interface for outputting the received marker information to the outside.

Preferably, the intelligent multi-plug adapter may further include at least one measuring unit for measuring a power characteristic supplied through the at least one power port.

Preferably, the intelligent multi-plug adapter may further include at least one power control unit for controlling the supply of power supplied through the at least one power port.

The home power control system according to another aspect of the present invention includes an intelligent multi-plug adapter and a home service server, wherein the intelligent multi-plug adapter can extract first marker information from a first marker attached to a wall outlet. A plug bundle having a first marker leader portion therein; At least one power port having a second marker reader portion capable of extracting second marker information identifying at least a type of the connected electrical appliance from a second marker attached to a plug of the connected electrical appliance; A receiving circuit unit for receiving the first and second marker information; And an output interface for delivering at least the first or second marker information to the home service server, wherein the first marker information is a digital code capable of identifying at least a location of the wall outlet, and the second marker information. May be a digital code capable of identifying at least a kind of the connected electrical appliance.

Preferably, the intelligent multi-plug adapter further includes at least one measurement unit for measuring a power characteristic supplied through the at least one power port, the output interface is the first marker information, the second marker information and The power characteristic information is transmitted to the home service server, and the home service server searches for a knowledge-based ontology based on the determined power consumption pattern of the electrical appliance to perform a context-aware power management and maintenance management service. Can provide.

According to another aspect of the present invention, there is provided a home network power control method, comprising: extracting first marker information by identifying a first marker attached to a wall outlet when a plug of an intelligent multi-plug adapter is coupled with a wall outlet; And recognizing positions of electrical appliances connected to the intelligent multi-plug adapter from positions of the wall outlets recognized from the first marker information.

Advantageously, the home network power control method further comprises: when coupling a plug of electrical appliances to at least one power ports of the intelligent multi-plug adapter, second marker information from a second marker attached to the plug of electrical appliances; Extracting; And identifying at least a kind of the connected electrical appliance from the second marker information.

Preferably, the first or second marker information may be set directly by the user, despite the marker.

According to the present invention, the reliability is high, the power consumption of the electric product can be easily analyzed, and the construction cost is low. In addition, the present invention can grasp the position where the electrical product is used without registering the electrical product one by one. Furthermore, the present invention may extract a power consumption pattern based on the collected information, grasp the behavior pattern of the user of the electric product, and build a home network that controls the power supply of the electric product.

With respect to the embodiments of the present invention disclosed in the text, specific structural to functional descriptions are merely illustrated for the purpose of describing embodiments of the present invention, embodiments of the present invention may be implemented in various forms and It should not be construed as limited to the embodiments described in.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. The same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

1 is a view schematically showing an intelligent multi-power tap capable of recognizing electrical appliances, a power plug, and a wall outlet according to an embodiment of the present invention.

Referring to FIG. 1, an intelligent multi-power tap or smart multi plug adapter 11, an extension cable 12, a plug bundle 13 attached to the end of the cable, and a plug bundle are provided. Shown is a wall outlet 14 into which a mated power connector is inserted.

The intelligent multi-plug adapter 11 includes a plurality of power ports 113 and information acquisition circuitry, and may further include a master power switch. The cable 12 includes therein a power wire for supplying power from the wall outlet 14, a communication wire for communication provided from the plug bundle 13 to the intelligent multi-plug adapter 11, and the like.

The plug bundle 13 is formed by encapsulating a power connector, a marker leader, and a plurality of wires with an encapsulation material. The plug bundle 13 may be substantially the same as a conventional plug bundle except for the marker leader.

The power connector of the plug bundle 13 may be inserted into the insertion hole of the wall outlet 14. When the plug bundle 13 is engaged with the wall outlet 14, the outer surface of the wall outlet 14 and the plug bundle 13 may be inserted. In the area where)) abuts, the marker is located on the wall outlet 14 side, and the marker leader is mounted on the plug bundle 13 side.

The marker is a marker having a digital code that can identify characteristic information such as an installation location, voltage / current specification, and the like, with respect to the wall outlet 14, and indicates physical, mechanical, chemical, electrical, magnetic, optical, or other characteristics. Is implemented on the outer surface of the wall outlet 14 to maintain its digital code permanently or semi-permanently. For example, the marker may preferably be attached to a predetermined position of the wall outlet 14. The marker may be manufactured by being integrated with the wall outlet 14. In this case, the marker may be implemented by modifying the shape or physical properties of the wall outlet 14 according to a digital code.

The marker reader portion is coupled using a physical, mechanical, chemical, electrical, magnetic or optical or other characteristic to the marker of the wall outlet 14 when the plug bundle 13 is coupled to the wall outlet 14. As a result, the plug bundle 13 may be implemented as a means for receiving information of the marker.

For example, the marker may be embodied as irregularities prominently formed on the surface of the wall outlet 14, or may be embodied by bar switches that can protrude and dent, or DIP switches that can be moved up and down.

Correspondingly, the marker leader can be implemented with microswitches which can recognize, for example, the uneven or relative position of the marker.

The marker reader section includes suitable logic circuitry to obtain the digital information carried by the marker and then convert it into an electrical signal and transmit it through the cable 12 to the intelligent multi-plug adapter 11.

Through this configuration, the intelligent multi-plug adapter 11 recognizes the positional information of the wall outlet 14 immediately after the plug bundle 13 is inserted into the wall outlet 14, thereby connecting the electric power connected to its power ports. Identify where products are installed in your building.

In addition, the marker reader may be further mounted on the power ports of the intelligent multi-plug adapter 11. If markers are also attached to the power plug bundle of the electrical appliance, the intelligent multi-plug adapter 11 can immediately identify the electrical appliance powered by the appliance when the electrical plug of the electrical appliance is inserted into the power ports. .

On the other hand, the intelligent multi-plug adapter 11 may further include a measuring unit for measuring the power consumption of each power port and a control unit for connecting or disconnecting the power supply of each power port.

The intelligent multi-plug adapter 11 may further include a wired or wireless communication means or a wired or wireless interface capable of transmitting the location information of the wall outlet thus collected, identification information of the connected electrical appliances, power consumption information, whether power is connected, and the like. Can be. The intelligent multi-plug adapter 11 may transmit this information to the home service server, and may assist the home service server in providing various intelligent services based on such information.

2 is a view illustrating a power plug connected to an intelligent multi-power tap capable of recognizing electrical appliances according to an embodiment of the present invention and a wall outlet corresponding thereto.

2, a marker 141 is attached to the wall outlet 14. Marker 141 is

Referring to the illustrated marker 141, there are digits at a predetermined interval on a strip-shaped sticker surface having a predetermined width, and bit 0 is represented by attaching a predetermined bar to each digit or by leaving a blank.

The illustrated marker 141 is just one of the ways to enable the electrical appliance recognition of the present invention by simply attaching the conventional wall outlet 14, and the shape of the marker 141 is limited thereto. Never. For example, the marker 141 is manufactured integrally with the wall outlet 14 so that a bar is formed at each bit position, and when the wall outlet 14 is installed at a designated position, the bar 1 is left as it is. You can also represent bit 0 by representing and removing the bars.

As illustrated in the figure, if the total number of bits is 8 bits, 256 markers are possible, so that the wall outlets 14 installed in 256 locations can be identified. Of course, as the number of bits increases, more wall outlets 14 can be identified.

The plug bundle 13 includes a marker leader 131 at a position corresponding to the marker 141. The marker reader 131 may be configured to include, for example, push switches 132 that are turned on / off by being pushed by the bars of the marker 141, and information of the marker 141 read by the push switches 132. The transmission circuit unit 133 converts the signal into an electrical signal and transmits the converted signal. Although the marker reader 131 recognizes marker information based on mechanical irregularities in the drawings, those skilled in the art may understand other physical, mechanical, chemical, electrical, and Magnetic, optical, or other known natural principles may be readily used to devise means for transferring marker information from the marker to the marker reader.

The transmission circuit unit 133 synchronizes with the clock signal transmitted from the intelligent multi-plug adapter 11, first transmitting a predetermined preceding bit string, and then transmitting the marker information bit string. For example, in FIG. 2, the marker information bit string is 10110101, and the transmitting circuit unit 133 may transmit a predetermined preceding bit string, for example, 10011001, and immediately transmit the marker information bit string 10110101. The transmitting circuit unit 133 may preferably transmit the marker information bit string in a serial manner.

The marker reader 131 may have a power supply line 5V, a ground line GND, a communication line COMM, and a clock line CLK between the intelligent multi-plug adapter 11 and the information transmission operation. .

3 is a block diagram illustrating an intelligent multi-power tap capable of recognizing electrical appliances according to an embodiment of the present invention.

Referring to FIG. 3, the intelligent multi-plug adapter 11 includes a reception circuit 111, a data processor 112, power ports 113, marker readers 114, and a clock generator 115. According to an embodiment, the output interface 116, the measurement unit 117, and the power control unit 118 may be further included.

When the plug bundle 13 of the intelligent multi-plug adapter 11 is plugged into the wall outlet 14, the following operation occurs.

The receiving circuit 111 may receive the marker information bit string transmitted from the marker reader 131 of the plug bundle 13. The receiving circuit 111 recognizes the preceding bit string among the marker information bit strings of the serial system, and recognizes the following bit string as the bit string of the marker. When the reception circuit unit 111 is completed, the reception circuit unit 111 generates an interrupt signal to the data processing unit 112 and transmits a signal to the data processing unit 112 to receive the marker information.

When the data processing unit 112 receives the interrupt signal from the receiving circuit unit 111, the data processing unit 112 obtains marker information of the wall outlet 14 from the output port of the receiving circuit unit 111. In this case, the output port of the reception circuit unit 111 may output data in various ways such as a serial method, a parallel method, and a packet method.

The intelligent multi-plug adapter 11 has a plurality of power ports, and marker readers 114 are coupled to the respective power ports 113. Marker reader portions 114 may recognize markers attached to a plug of electrical appliances coupled to power ports. The marker readers 114 may have substantially the same configuration and principle as the marker leader 131 of the plug bundle 13, but other configurations and principles may be used according to embodiments.

According to an exemplary embodiment, even when there are no markers on the plug of the electrical appliance, the user may directly set predetermined marker information on the marker readers 114 to recognize the electrical appliance. In this case, the marker readers 114 may include means such as, for example, a dip switch and a jumper so that a user can set marker information.

When the plugs of electrical appliances are inserted into the power ports 113 of the intelligent multi-plug adapter 11, the following operation occurs.

The marker readers 114 obtain marker information of the markers coupled to the power ports, respectively. The marker readers 114 deliver marker information to respective input ports of the receiving circuitry 111. The receiving circuit 111 may output a plurality of input ports of the marker readers 114 and marker information transmitted from the transmitting circuit 133 of the marker reader 131 to one output port. In this case, the output port of the receiver circuit 111 may operate as a kind of multiplexer, and the output selection signal may be provided from the data processor 112. Thus, the reception circuit unit 111 sequentially transmits marker information of electrical appliances plugged into the power ports 113 according to the output selection signal from the data processing unit 112 to the data processing unit 112.

The clock generator 115 generates a clock for operating each circuit block in the intelligent multi-plug adapter 11.

The intelligent multi-plug adapter 11 may additionally include an output interface 116, which outputs the marker information of the collected wall outlet 14 and the marker information of the power ports 113 to the home service. The server (not shown) may transmit wired communication such as power line communication (PLC), wireless communication such as Wi-Fi or binary CDMA, or an inexpensive wired interface such as uART. The output interface 116 may transmit the collected information to the home service server in real time, periodically, frequently, or according to an instruction.

The intelligent multi-plug adapter 11 may additionally include a measuring unit 117. The measurement unit 117 may measure real-time power consumption by measuring voltage and current supplied to the power ports 113, and may further obtain information such as power factor. The power consumption information and other information collected by the measurement unit 117 may be transmitted to the home service server through the data processing unit 112 and the output interface 116.

In addition, the intelligent multi-plug adapter 11 may additionally include a power control unit 118. The power control unit 118 may control the supply of power to the power ports 113. For example, if it is determined that the connected electrical appliance is in a standby state, the power supply to the electrical appliance can be stopped. When connected to the home service server, the electric product may be powered on and off according to a power supply schedule of the electric product set in the home service server.

4 is a flowchart illustrating an operation of an intelligent multi-plug adapter device capable of recognizing electrical appliances according to an embodiment of the present invention.

Referring to FIG. 4, when the connector of the plug bundle 13 at the end of the cable 12 connected to the intelligent multi-plug adapter 11 is plugged into the wall outlet 14, or the plug bundle 13 is already plugged into the wall outlet 14. When the master power switch is plugged in (S41), the marker reader 131 of the plug bundle 13 and the marker 141 of the wall outlet 14 are physical, mechanical, chemical, electrical, and magnetic. In accordance with the optical and other natural principles, the marker reader 131 extracts the marker information from the marker 141 (S42). The extracted marker information is provided from the plug bundle 13 through the cable 12 to the intelligent multi-plug adapter 11, specifically, to the receiving circuit 111 (S43).

Meanwhile, the power ports 113 of the intelligent multi-plug adapter 11 also recognize the information of the connected electrical products (S44). Specifically, the marker readers 114 extract the marker information from the markers of the plugs of the electrical appliances plugged into the power port 113, or recognize the electrical appliance information manually set by the user on the marker readers 114. do.

The extracted marker information or the set electrical product information is stored in the intelligent multi-plug adapter 11 (S45). Specifically, the marker information is collected in the receiving circuit section 111 of the intelligent multi-plug adapter 11. Subsequently, the reception circuit unit 111 generates an interrupt when the reception is completed, and the data processing unit 112 in the predetermined order from the reception circuit unit 111 when the interrupt occurs, for example, marker information of the marker reader unit 131. And received in the order of the marker information of the power port 113.

Furthermore, the measurement unit 117 generates information measuring the current, voltage, and power characteristics supplied through the power ports 113 (S46). The generated measurement information may be received by the data processor 112. The data processor 112 may associate marker information with measurement information.

In addition, the output interface 116 transmits the collected marker information and the measurement information to the home service server through the wired or wireless interface (S47).

5 is a schematic block diagram illustrating a home power control system using an intelligent multi-plug adapter according to an embodiment of the present invention.

Referring to FIG. 5, the home power control system 50 may include a home service server 51, an intelligent multi-plug adapter 52, a UPnP device 53, a display 54, and a database 55. , Ontology 56, and the Internet 57.

The home service server 51 may serve as a host for various UPnP devices 53 and is configured to interface with a user through the display 54. In the present invention, the intelligent multi-plug adapter 52 according to an embodiment of the present invention may be connected to the home service server 51. The intelligent multi-plug adapter 52 may include location information of a wall outlet to which the intelligent plug adapter 52 is connected to the home service server 51, identification information of devices powered by the intelligent plug adapter 52, and Power consumption information and the like of the devices.

The home service server 51 retrieves information from the database 55, the ontology 56, the Internet 57 based on the location information, the device identification information, the power consumption information, etc. provided from the intelligent multi-plug adapter 52. The information retrieved can be used to manage power and maintenance of electrical appliances.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art. Modifications are possible. Accordingly, the spirit of the invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications will fall within the scope of the invention.

1 is a view schematically showing an intelligent multi-plug adapter capable of recognizing electrical appliances, a power plug, and a wall outlet according to an embodiment of the present invention.

2 is a view illustrating a power plug connected to an intelligent multi-plug adapter capable of recognizing electrical appliances according to an embodiment of the present invention and a wall outlet corresponding thereto.

3 is a block diagram illustrating an intelligent multi-plug adapter capable of recognizing electrical appliances according to an embodiment of the present invention.

4 is a flowchart illustrating an operation of an intelligent multi-plug adapter and a power plug capable of recognizing electrical appliances according to an embodiment of the present invention.

5 is a schematic block diagram illustrating a home power control system using an intelligent multi-plug adapter according to an embodiment of the present invention.

Claims (22)

A plug bundle having a first marker reader portion capable of extracting first marker information from a first marker attached to a wall outlet; And Receiving circuit unit for receiving the first marker information, And the first marker information is a digital code capable of identifying at least a position of the wall outlet. The method according to claim 1, At least one power port having a second marker reader portion capable of identifying a second marker attached to a plug of the electrical appliance to be connected to extract second marker information, The second marker information is a digital code capable of identifying at least a kind of the connected electrical appliance, The receiving circuit unit is an intelligent multi-plug adapter, characterized in that for receiving the second marker information from the second marker reader. The intelligence of claim 2, wherein the first or second marker information is implemented on the marker by any one or a combination of physical, mechanical, chemical, electrical, magnetic, optical, and other natural principles. Multi plug adapter. The intelligent multi-plug adapter of claim 2, wherein the first or second markers can directly set the first or second marker information, respectively. The display apparatus of claim 2, wherein the first or second marker reader unit is configured to allow the user to directly set marker information despite the first or second marker. And the receiving circuit unit receives the marker information set by the user in preference to the first or second marker information implemented in the first or second marker. The intelligent multi-plug adapter of claim 1, wherein the first marker information is received in a serial bit string. The intelligent multi-plug adapter according to claim 2, further comprising an output interface for outputting the received first or second marker information to the outside. The intelligent multi-plug adapter of claim 2, further comprising at least one measurement unit for measuring a power characteristic supplied through the at least one power port. The intelligent multi-plug adapter of claim 2, further comprising at least one power controller capable of controlling the supply of power supplied through the at least one power port. At least one power port having a marker reader portion capable of extracting marker information from a marker attached to a plug of a connected electrical appliance; And Receiving circuit unit for receiving the marker information, And the marker information is a digital code capable of identifying at least a type of the connected electrical appliance. The intelligent multi-plug adapter of claim 10, wherein the marker information is implemented on the marker by any one or a combination of physical, mechanical, chemical, electrical, magnetic, optical, and other natural principles. The intelligent multi-plug adapter according to claim 10, wherein the marker can directly set the marker information. The method of claim 10, wherein the marker reader unit is configured to allow the user to directly set marker information on the marker for the corresponding power port, The receiving circuit unit is an intelligent multi-plug adapter, characterized in that for receiving the marker information set by the user. The intelligent multi-plug adapter of claim 10, wherein the marker information is received in a serial bit string. The intelligent multi-plug adapter according to claim 10, further comprising an output interface for outputting the received marker information to the outside. The intelligent multi-plug adapter of claim 10, further comprising at least one measurement unit for measuring a power characteristic supplied through the at least one power port. The intelligent multi-plug adapter of claim 10, further comprising at least one power control unit for controlling the supply of power supplied through the at least one power port. In the home power control system comprising an intelligent multi-plug adapter and a home service server, The intelligent multi-plug adapter, A plug bundle having a first marker reader portion capable of extracting first marker information from a first marker attached to a wall outlet; At least one power port having a second marker reader portion capable of extracting second marker information identifying at least a type of the connected electrical appliance from a second marker attached to a plug of the connected electrical appliance; A receiving circuit unit for receiving the first and second marker information; And An output interface for delivering at least the first or second marker information to the home service server, Wherein the first marker information is a digital code for identifying at least a position of the wall outlet, and the second marker information is a digital code for identifying at least a kind of the connected electrical appliance. . 19. The method of claim 18, Further comprising at least one measuring unit for measuring a power characteristic supplied through the at least one power port, The output interface transmits the first marker information, the second marker information, and the power characteristic information to the home service server. The home service server may search for knowledge-based ontology based on the determined power consumption pattern of the electrical appliance to provide a context-aware power management and maintenance management service. . Extracting first marker information by identifying a first marker attached to the wall outlet when the plug of the intelligent multi-plug adapter is coupled with the wall outlet; And And recognizing the position of electrical appliances connected to the intelligent multi-plug adapter from the position of the wall outlet recognized from the first marker information. The method of claim 20, When coupling a plug of electrical appliances to at least one power ports of the intelligent multi-plug adapter, extracting second marker information from a second marker attached to the plug of electrical appliances; And And identifying at least a type of the connected electrical appliance from the second marker information. 21. The method of claim 20, wherein the first or second marker information can be set directly by the user despite the marker.

Images