KR100822769B1 - Electronic tag including the mode convertible function and base station device using the tag - Google Patents

Abstract

A mode convertible electronic tag and a mode convertible electronic tag recognition device are provided to produce a very low power standby state using low-frequency communication so as to use the electronic tag for a long time and achieve a high transmission rate of a ZigBee communication module. A mode convertible electronic tag(550) includes a low-frequency inducing receiver(551) and a ZigBee communication unit(552). The low-frequency inducing receiver receives a low-frequency signal radiated from a mode convertible electronic tag recognition device(530). The ZigBee communication unit is converted to an active mode in response to wakeup information included in the low-frequency signal in a power-saving mode and performs ZigBee communication with the mode convertible electronic tag recognition device in the active mode.

Description

Electronic tag recognition mode and mode station electronic tag recognition device {Electronic tag including the mode convertible function and base station device using the tag}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic tag and an electronic tag recognition device, and more particularly, to an electronic tag of a mode switching method in which power consumption is reduced to a minimum, and an electronic tag recognition device of a mode switching method to communicate with the electronic tag in a different frequency band. It is about.

ZigBee, a wireless personal area network technology, has been standardized in IEEE 802.15.4 as a personal wireless network standard for home automation and data based on 2.4 GHz (Giga Hertz). Compared to other wireless private network technologies such as Bluetooth (Blue tooth) and Ultra Wide Band (UWB), ZigBee offers the lowest cost of chipsets due to its low power consumption and simplicity of wireless transceiver. Short range wireless communication technology.

1 shows an example of a configuration of a wireless communication network using Zigbee.

Referring to FIG. 1, a ZigBee wireless communication network includes a network coordinator 11 and a plurality of devices 12 that transmit and receive data wirelessly with the network coordinator 11. The network coordinator 11 is provided to a main control device of a computer or a home network to control data transmission and reception with a plurality of devices 12. The plurality of devices 12 refers to a ventilator, an air conditioner, a security device, a lamp, and various sensors.

In the short range wireless private network using Zigbee, the network coordinator 11 transmits a beacon to the plurality of devices 12 at a predetermined time interval. At this time, the interval between the beacons may be a minimum of 15 ms (milli seconds) to a maximum of 245 ms.

2 shows an example of a beacon used in a short range wireless private network using a Zigbee.

Referring to FIG. 2, there are 16 time slots between a beacon and a beacon. The 16 time slots are divided into a connection contention section in which a plurality of devices 12 compete with each other for connection with the network coordinator 11, and a contention-free section allocated to a single device requiring a specified bandwidth or low processing delay. At this time, a time slot allocated to a predetermined device is referred to as a guaranteed time slot (GTS). In order to minimize the power consumption, the device 12 operates in a power saving mode. The device 12 checks whether there is data to be transmitted or received between the device 12 and the network coordinator 11 at every beacon period.

In the conventional wireless communication network using Zigbee, there is a problem that unnecessary power consumption occurs because the device 12 periodically wakes up and consumes power in a power saving mode to check whether data is transmitted or received. In order to solve the problem of unnecessary power consumption, a wake-up method of the Zigbee terminal (Korean Patent Publication No. 10-2006-31477) has been proposed. The present invention allows the Zigbee device to release the power saving mode only when there is data to be transmitted and received, thereby enabling data transmission and reception without delay and minimizing unnecessary power consumption.

Since the present invention wakes up the Zigbee terminal using the GTS, it can be used only in an environment in which the GTS can be used.

RFID (Radio Frequency Identification) system, which appeared in the 1980s, is a non-contact radio frequency identification system that attaches to various items and transmits and processes information of objects and surrounding environment information at radio frequency. The RFID system consists of a reader with a read / decode function, an RFID tag with unique information, operating software, and a network.The RFID system reads radio waves from a thin flat electronic tag attached to an object. Process the information by identifying it.

The electronic tag consists of a transponder chip made of semiconductor and an antenna, and there are passive and active type. In contrast to the passive type of energy supplied from the radio signal of the reader without the internal power supply, the active type can be operated by a separate battery built-in. The electronic tag has different recognition distances, applications, recognition speeds, and tag sizes for each band of frequencies used to communicate with the base station.

3 shows electrical characteristics of an electronic tag for each frequency band.

Referring to FIG. 3, an electronic tag using a low frequency band (125KHz to 134KHz) frequency signal is applied to proximity security, FA, animal management, and vehicle locking device. Electronic tag using high frequency band signal (13.56MHz) is applied to the field of transportation card, library and inventory management. Electronic tags using frequency signals in the Ultra-High Frequency (UHF) band (860 MHz to 930 MHz) are used in areas such as pallet tracking, international logistics SCM (supply chain management), inventory management, production management and baggage tracking. Apply. Electronic tags using frequency signals in the ultra-high frequency band (2.45 GHz to 5.8 GHz) are applied to applications such as SCM and highway toll gates. As the frequency used increases, the recognition speed increases and the size of the tags decreases. The performance of the electronic tag shown in FIG. 1 was created based on the passive electronic tag.

FIG. 4 shows advantages and disadvantages of the frequency bands shown in FIG. 3.

3 and 4, the low frequency band (125KHz ~ 134KHz) of the electronic tag has the advantage that there is no problem in the electronic standards / electromagnetic protection standards and are not affected by metal objects, but the data transmission rate is very slow and The size has a big disadvantage. The high frequency band (13.56MHz) of the electronic tag has the advantage that the tag size and price is reasonable, but in the shaded area it is difficult to transmit and receive data and has a short recognition distance. The electronic tag of the UHF band (860MHz ~ 930MHz) has a long recognition distance, the size of the tag is large, it is difficult to manufacture a product that satisfies all radio regulations different from country to country. The electronic tag of the ultra high frequency band (2.45 GHz ~ 5.8 GHz) has the advantages of small size, cheap price and high transmission speed, but there is a disadvantage that the recognition distance is less than 1m due to the limitation of radio wave standard / electromagnetic wave protection standard.

An object of the present invention is to provide an electronic tag of the mode switching method having an ultra low power standby state without being affected by obstacles such as metal materials or pockets.

Another technical problem to be achieved by the present invention is to propose an electronic tag recognition apparatus of a mode switching method for performing communication in the mode switching electronic tag and a heterogeneous frequency band.

Another technical problem to be achieved by the present invention is to propose an electronic tag recognition system of a mode switching method comprising the electronic tag of the mode switching method and the electronic tag recognition device of the mode switching method.

According to an aspect of the present invention for achieving the above technical problem, the electronic tag of the mode switching method includes a low frequency band induction receiver and a Zigbee communication unit. The low frequency band induction receiver receives a signal of a low frequency band radiated from a mode tag type electronic tag recognition device. The Zigbee communication unit converts to the active mode in response to the wake-up information included in the signal of the low frequency band in the power saving mode, and performs a Zigbee communication with the electronic tag recognition device of the mode switching method in the active mode.

According to another aspect of the present invention for achieving the above technical problem, the electronic tag of the mode switching method includes a Zigbee communication unit, a low frequency induction receiver and a main control unit. The Zigbee communication unit performs a Zigbee communication with the mode tag electronic tag recognition device. The low frequency band induction receiver receives a signal of the low frequency band radiated from the mode tag type electronic tag recognition device. The main controller converts the Zigbee communication unit from the power saving mode to the active mode in response to the wake-up signal included in the signal of the low frequency band received through the low frequency band induction receiver.

An apparatus for recognizing an electronic tag of a mode switching method according to the present invention for achieving another technical problem includes a Zigbee module, a low frequency band induction transmitter, and an MCU. The Zigbee module performs ZigBee communication with the electronic tag of the mode switching method. The low frequency induction transmitter transmits a low frequency band signal. The MCU authenticates the electronic tag of the mode switching method and provides various services to the holder of the electronic tag of the mode switching method.

According to another aspect of the present invention, there is provided a mode switching method of an electronic tag recognition system, including a mode switching mode of an electronic tag, a mode switching mode of an electronic tag recognition apparatus, a wall pad, and a server. The mode tag type electronic tag stores and outputs user information, and operates in a power saving mode and an active mode. The apparatus for recognizing an electronic tag of the mode switching method authenticates an electronic tag holder of the mode switching method using the user information, and provides various services to the electronic tag holder of the mode switching method. The wall pad provides a service to the user or outputs the information as it is, using information on the mode tag holder of the electronic tag received from the electronic tag recognition device. The server provides the service to the user or another user related to the user by using the user information transmitted through the wall pad. Herein, the mode tag type electronic tag recognition device transmits a wake up signal using a signal of a low frequency band, and the mode tag type electronic tag switches from a power saving mode to an active mode when the wake up signal is enabled. The mode tag type electronic tag recognition device transmits user information stored in the electronic tag and information on the reception intensity of the signal of the low frequency band as a signal of a UHF or microwave frequency band.

The electronic tag and the electronic tag recognition apparatus of the mode switching method according to the present invention has the advantage that it can be used for a long time because the ultra low power standby is possible by applying low frequency band communication. In addition, it is possible to process complex bands such as RFID of LF band at the same time as RFID of UHF band used for conventional supply chain management, interworking with internet communication network, and both indoor and outdoor can be recognized. In addition, it solves the problems of the electromagnetic wave human body protection standards and radio wave standards of the 125KHz low frequency band at the same time, and can achieve the effect of miniaturization, cost reduction and high transmission speed of the Zigbee communication module.

The core idea of the present invention is that an electronic tag recognition system and an electronic tag communicate using signals of at least two different frequency bands. That is, the low frequency band signal is used for transmitting and receiving a wakeup signal instructing to convert the Zigbee module of the electronic tag in the power saving mode into the active mode, and after the Zigbee module is activated by the wakeup signal. In the high frequency band signal is to perform the communication as in the prior art.

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

5 is an embodiment of an electronic tag recognition system of a mode switching method according to the present invention.

Referring to FIG. 5, the electronic tag recognition system 500 includes a server 510, a wall pad 520, an electronic tag recognition device 530, and an electronic tag 540.

The electronic tag recognition device 530 includes a Zigbee communication device 533 including an MCU 531, a low frequency band induction transmitter 532, a UHF transceiver 534, and an Ethernet communication device 535.

The electronic tag 550 includes a low frequency band induction receiver 551 and a Zigbee communication unit 552. The Zigbee communication unit 552 includes a wake-up information detector 553, a main controller 554, and a Zigbee communication device 555. The Zigbee communication device 555 may include a UHF communicator 556, and the electronic tag 550 may further include a memory 557, a button 558, and a buzzer 559.

Hereinafter, the operation of the electronic tag recognition system 500 will be described.

Referring to FIG. 5, when the holder of the mode tag type electronic tag 550 approaches within 2 to 3 m (meter) from the mode tag type electronic tag recognition device 530, the electronic tag is recognized by the recognition device 530. Activates the Zigbee communication unit 552 that receives the wake-up information included in the low frequency band signal S1 radiated from the low frequency band induction transmitter 532 through the low frequency band induction receiver 551 and takes a power saving mode. To process the necessary data. Here, for example, a signal of 125 KHz may be used as the frequency of the signal S1 of the low frequency band. In the case of the signal having a frequency of 125KHz, it has already been mentioned that even when the electronic tag 550 is placed in a container containing a metal object such as a wallet or a basket, communication is possible within 2 to 3m and in particular, the effect on the human body is small. .

The wakeup information detector 553 included in the Zigbee communication unit 552 receives the low frequency band signal S1 through the low frequency band induction receiver 551 and detects the wake up information included in the low frequency band signal. The mode conversion command signal MC instructing to switch to the active mode is generated and transmitted to the main control device 554. The wake-up detector 553 compares the pattern of the signal of the low frequency band with the pre-stored active pattern and enables the mode conversion command signal MC according to the comparison result.

The main control device 554 receiving the mode conversion command signal MC is enabled, thereby activating the Zigbee communication device 555 to intensify the unique information stored in the memory 557 and the signal S1 of the low frequency band. Information about the received signal strength indication (RSSI) is transmitted to the electronic tag recognition device 530 using a 2.4 GHz signal (S2). When the Zigbee communication device 555 further includes a UHF transceiver 556, the unique information may be transmitted to the electronic tag recognition device 530 using a signal in a frequency range of 860 MHz to 930 MHz (S3). At this time, 900 MHz is commercially available as the frequency of the signal S2 used by the UHF transceiver 556.

Although FIG. 5 shows that the main controller 554 is included in the Zigbee communication unit 552 and described as being converted from the power saving mode to the active mode in response to the mode conversion command signal MC, the Zigbee communication unit 552 It is also possible to install it externally but inside the electronic tag so that it always operates in active mode.

In the above description, the board on which the low frequency induction transmitter 551, the Zigbee communication unit 552, the memory 557, the button 558, and the buzzer 559 are installed is also referred to as a Zigbee module as a whole.

The electronic tag recognizing apparatus 530 transmits the unique information stored in the electronic tag 550 transmitted from the electronic tag 550 and information on the strength RSSI of the signal S1 of the low frequency band to the Zigbee communication apparatus 533 or Received through the UHF transceiver 534 provided in the Zigbee communication device 533, the information is processed and transmitted to the server 510 via the wall pad 520. The Ethernet communicator 535 included in the electronic tag recognition device 530 performs external communication with the wall pad 520 and the central server 510 through a communication network (not shown).

The wall pad 520 is a home network controller embedded in a wall, and replaces a conventional video phone and displays and controls all functions of the home network. The home network refers to a system that not only provides high-speed Internet to information and communication devices such as computers in the house, but also monitors and controls the status of home appliances such as microwave ovens, washing machines, and air conditioners, and performs fire and crime prevention. it means. Although the wall pad 520 is illustrated in FIG. 5, a kiosk may be used in some cases. Kiosks are small structures designed to display information for people passing by, usually with computers and display screens. The kiosk is a structure installed near the entrance of the mall for the purpose of guiding shoppers to the store. The wall pad and kiosk are connected to a central server through a communication network to deliver various events and receive commands from the server.

The current flowing in the Zigbee communications operating at 2.4 GHz (Giga Hertz) is milli-ampere. In the case of an active electronic tag driven by a power source such as a battery, the Zigbee communication unit in the active mode consumes a lot of power, so it is necessary to change the battery frequently. Therefore, the power saving mode should be operated unless necessary. Since a current of about a few microamps flows in the circuit for transmitting and receiving the signal in the low frequency band, the power consumed by the electronic tag in the power saving mode is insignificant.

The memory 557 of the electronic tag 550 stores various information about a person who uses the electronic tag 550. If necessary, the stored information may be modified under the control of the main controller 554. In this case, the information may be determined according to the area in which the electronic tag recognition system 500 is used, but in general, personal information such as the date of birth required for authenticating the user, the place of residence, and the number of the car, if necessary, Will be the same information.

The Zigbee communication device 555 included in the electronic tag 550 may be forcibly activated in addition to being activated by the mode conversion command signal MC. That is, when the electronic tag 550 is in the power saving mode, when the user presses the button 558 for a predetermined time or more, the Zigbee communication device 555 changes to the active mode. Here, the constant time means a time that can be arbitrarily determined by the user, such as 1 second, 2 seconds, and 3 seconds. In this case, the main controller 554 may monitor the time when the button is pressed to convert the Zigbee communication device 555 into the active mode.

In FIG. 5, the interval between the electronic tag recognition device 530 and the electronic tag 550 is 2.5 m, but the interval may increase or decrease depending on how the low frequency band signal is utilized.

6 shows an example of practical use of the electronic tag recognition system of the mode switching method according to the present invention.

Referring to FIG. 6, when the father carrying the first electronic tag (Tag 1) arrives in the front of the apartment near the common entrance, the signal of the low frequency band transmitted by the first electronic tag recognition device (Base Station A) The Zigbee module of the first electronic tag Tag 1 that is in the power saving mode is activated by the wake-up information included in the wake-up information. The activated Zigbee module has a first electronic tag (Tag 1) and a first electronic tag recognition device (Base Station A) perform regular communication using a microwave signal, and the first certified tag (Tag 1) is installed in the apartment. Inform the wallpad that you have approached. The wall pad informs this information to a central server connected by a LAN, and the central server processes the information and sends a second electronic tag (Tag 2) to a second electronic tag recognition device (Base Station B) via another wall pad. Inform the family that the father has arrived via a delivery device such as a speaker (not shown) built in the electronic tag, or enable the buzzer, etc. built in the second electronic tag (Tag 2).

If the child playing in the playground has a problem, the button 557 attached to the electronic tag is pressed for a predetermined time or more, so that an emergency signal is forcibly generated even if it is slightly away from the second electronic tag recognition device B. The indication signal can be transmitted to the second electronic tag recognition device B.

The operation associated with the button 558 and the buzzer 559 embedded in the electronic tag is controlled by the main controller 554.

 The electronic tag recognition system of the mode switching method according to the present invention, for example, when applied to an apartment, automatic door opening service, automatic elevator pressing service, mail notification service, user arrival reminder service in the apartment where the electronic tag ID resides It provides services such as parking lot zone guidance services.

In this case, the main controller 531 provides the above-described service after making quasi-intelligence.

For example, when the same electronic tag holder stays in the recognition area of the electronic tag recognition base station apparatus for more than a predetermined time or when exiting the recognition area, the event is generated only when the first recognition is made. Also, when a plurality of electronic tags are recognized at the same time, it is determined whether the plurality of electronic tags are the same group (same generation), and in the case of the electronic tags belonging to the same group, only one event occurs and the electrons do not belong to the same group. In the case of a tag, events are processed by processing signals in the order of time.

An example of the operation in the state where the electronic tag and the electronic tag recognition apparatus according to the present invention are installed in the apartment will be described.

When an inhabitant of an apartment with an electronic tag approaches the apartment entrance, the electronic tag recognition device detects this and automatically opens the front door. When the electronic tag holder approaches the elevator, it automatically operates the elevator and provides various convenient information. For example, a voice message or a video message is output according to the presence or absence of a mail notification service or notification content.

In particular, a technology for recognizing electronic tags at a long distance from the electronic tag recognition device may cause security problems in some cases. If the base station that requires enhanced security is controlled by using information on the signal strength (RSSI) of the low frequency band radiated from the electronic tag recognition device received by the electronic tag, it may occur in a special case. You can prepare for security issues.

In order to explain the special case that may cause the security problem, it is assumed that the holder of the electronic tag and an outsider who does not have the electronic tag are in the elevator. An outsider who is in the same elevator at the same time as the person who carries the electronic tag may be a normal visitor associated with the apartment occupant, but may be a person with a bad other purpose.

If the base station that operates the elevator automatically recognizes the electronic tag in the elevator's confined space and enables floor button presses, the latter can freely operate the elevator floor selection buttons, greatly increasing the security of the apartment. Problems will arise. In this case, the base station may be controlled to operate when the signal strength (RSSI) is greater than or equal to a predetermined magnitude by changing the remote automatic recognition. The control of the operation may follow the instructions of the server 510 or may set the operation to the base station in advance so that the server 510 may operate by the independent determination of the base station not involved.

In the above example, elevator floor button presses are effective only when the electronic tag holder consciously brings the electronic tag consciously below the predetermined distance. It is reasonable to determine the distance to be determined by experience or experimentation, but there are many possible cases, such as validating only when the electronic tag is in contact with the base station or close to 10 cm (centimeter).

Such a signal processing method is called a passive technique. In another example of the passive technique, in a region where security is required or a tag holder requires monetary payment, the tag must be brought closer to the reader within 15 cm to open the door. It is. In addition, although not shown, it is also possible to insert the RF chip attached to a traffic card or a credit card into the tag at the same time as performing the passive technique.

As described above, opening and closing the door of the elevator is determined by general remote recognition, but in a specific embodiment such as validating floor button press, dualization is provided so that security-enhanced service can be provided through near-field recognition rather than remote recognition. can do. The binarization of the above operation can be easily implemented by using information on the strength RSSI of the signal S1 of the low frequency band radiated from the electronic tag recognition device.

7 is a flowchart illustrating an electronic tag recognition method of an electronic tag recognition base station apparatus.

When the electronic tag approaches the recognition area (S201),

The electronic tag recognition device checks the signal strength and the number of each electronic tag (S202);

Confirming the last access time and the presence of a newly delivered message for each electronic tag ID (S203);

It is checked whether there is an electronic tag ID to be given priority or excluded among the electronic tag IDs (S204).

As a result of the above check, if the last access time is within the allowable value or there is an electronic tag ID without a delivery message (S205);

The event for the electronic tag ID is not generated (S206).

If there is an electronic tag ID given priority among the accessed electronic tag IDs (S207);

The event of the electronic tag ID to which priority has been given is first processed (S208).

If there are a plurality of electronic tag ID belonging to the same group (S209);

The event is processed only for the representative electronic tag ID of the group (S210).

Thereafter, the event of the remaining electronic tag ID is processed (S211).

That is, the electronic tag recognition base station apparatus does not repeatedly generate the same notification even when the user who carries the electronic tag repeatedly passes through the recognition area for a short time, and the signal strength even if multiple electronic tag holders enter simultaneously. Through priority can be given priority through. In addition, the location of the target carrying the electronic tag can be tracked and searched, and can be implemented to generate an alarm when outside the defined range (for example, when the elderly leave the complex).

In addition, it is possible to implement a security system for external visitors and access vehicles that are not legitimate electronic tag holder at a lower cost, and provide more convenient services to users in connection with elevators, digital device control, and home care servers.

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.

1 shows an example of a configuration of a wireless communication network using Zigbee.

2 shows an example of a beacon used in a short range wireless private network using a Zigbee.

3 shows electrical characteristics of an electronic tag for each frequency band.

FIG. 4 shows advantages and disadvantages of the frequency bands shown in FIG. 3.

5 is an embodiment of an electronic tag recognition system of a mode switching method according to the present invention.

6 shows an example of practical use of the electronic tag recognition system of the mode switching method according to the present invention.

7 is a flowchart illustrating an electronic tag recognition method of an electronic tag recognition base station apparatus.

Claims (25)

A low frequency band induction receiver for receiving a signal of a low frequency band radiated from a mode tag type electronic tag recognition device; And And a Zigbee communication unit configured to convert to the active mode in response to the wake-up information included in the signal of the low frequency band in the power saving mode, and perform Zigbee communication with the electronic tag recognition device of the mode switching method in the active mode; The Zigbee communication unit communicates with the mode tag type electronic tag recognition device using a 2.4 GHz frequency signal, The frequency of the signal of the low frequency band is an electronic tag of the mode switching method, characterized in that 125KHz. The method of claim 1, wherein the Zigbee communication unit, A Zigbee communication device performing Zigbee communication with the mode tag type electronic tag recognition device; A wake-up detector for generating a mode conversion instruction signal corresponding to the wake-up information included in the signal of the low frequency band; And A main control device for enabling the Zigbee communication device in response to the mode conversion command signal; And the main control device and the Zigbee communication device are switched from a power saving mode to an active mode when the first mode conversion command signal is in an enabled state. The wake up detector of claim 2, And comparing the pattern of the signal in the low frequency band with an active pattern stored in advance, and enabling the mode conversion command signal according to a comparison result. delete According to claim 1, The Zigbee communication device, With UHF transceiver, The UHF transceiver is a mode switching electronic tag, characterized in that for communicating with the mode switching electronic tag recognition device using a signal in the frequency range of 860MHz ~ 930MHz. The method of claim 1, Further comprising a memory for storing information about the user of the electronic tag, And the user information stored in the memory is transmitted to the mode tag type electronic tag recognition device through the Zigbee communication device. The method of claim 1, wherein the electronic tag of the mode switching method, More buttons, And the Zigbee communication unit is switched to an active mode when the button is pressed for a time longer than a reference time. The method of claim 2, wherein the electronic tag of the mode switching method, More buttons, And when the button is pressed for a time equal to or greater than a reference time, the main control device is converted into an active mode to convert the Zigbee communication device into an active mode. The method of claim 1, wherein the electronic tag of the mode switching method, And a buzzer controlled by the Zigbee communication unit, and at least one of an RF chip attached to a traffic card or a credit card. The method of claim 2, wherein the electronic tag of the mode switching method, And a buzzer controlled by the main control unit, and at least one of an RF chip attached to a traffic card or a credit card. ZigBee communication unit for performing the ZigBee communication with the mode switching electronic tag recognition device; A low frequency band induction receiver for receiving a signal of a low frequency band radiated from the mode tag type electronic tag recognition device; And And a main controller for converting the Zigbee communication unit from a power saving mode to an active mode in response to a wake-up signal included in the signal of the low frequency band received through the low frequency band induction receiver. tag. The method of claim 11, The Zigbee communication unit communicates with the mode tag type electronic tag recognition device using a 2.4 GHz frequency signal, The frequency of the signal of the low frequency band is an electronic tag of the mode switching method, characterized in that 125KHz. The method of claim 11, wherein the main control unit, A wake-up signal detector for generating a mode conversion instruction signal corresponding to the wake-up information included in the signal of the low frequency band; And And a main control device for converting the Zigbee communication unit from the power saving mode to the active mode when the mode switching instruction signal is in an enabled state. The wakeup detector of claim 13, And comparing the pattern of the signal in the low frequency band with an active pattern stored in advance, and enabling the mode conversion command signal according to a comparison result. The method of claim 11, It further includes a memory for storing information about the user of the electronic tag, And the user information stored in the memory is transmitted to the electronic tag recognizing apparatus of the mode switching method through the Zigbee communication unit. The method of claim 11, button; And Further comprising a buzzer operating according to the instructions of the main control unit, And the main controller converts the Zigbee communication unit from the power saving mode to the active mode when the button is pressed for a time longer than a reference time. A Zigbee communication unit for performing a ZigBee communication with the electronic tag of the mode switching method; A low frequency band induction transmitter for transmitting the low frequency band signal by including wake-up information; And an MCU for authenticating the electronic tag of the mode switching method and providing various services to a holder of the electronic tag of the mode switching method. The method of claim 17, The Zigbee module communicates with the mode switching electronic tag using a 2.4 GHz frequency signal, And a frequency of the signal in the low frequency band is 125 kHz. The method of claim 18, wherein the Zigbee module, An apparatus for recognizing an electronic tag of a mode switching method, comprising a UHF transceiver for communicating with an electronic tag of the mode switching method using a signal in a frequency range of 860 MHz to 930 MHz. The method of claim 17, And an Ethernet communicator for communicating with an external device of the electronic tag recognition device. The method of claim 20, wherein the external device, A mode switch type electronic tag recognition device, characterized in that the home network controller is a wall pad or kiosk. An electronic tag of a mode switching method that stores and outputs user information and operates in a power saving mode and an active mode; An electronic tag recognition device of a mode switching method for authenticating the electronic tag holder of the mode switching method using the user information and providing various services to the electronic tag holder of the mode switching method; A wall pad that provides a service to a user or outputs the information as it is by using information about the mode tag type electronic tag holder received from the electronic tag recognition device; And And a server for providing a service to the user or another user related to the user by using the user information transmitted through the wall pad. The mode tag type electronic tag recognition device transmits a wake-up signal using a signal of a low frequency band, When the wake-up signal is enabled, the electronic tag of the mode switching method receives the user information stored in the electronic tag and the signal of the low frequency band by the electronic tag recognition device of the mode switching method when the wake up signal is enabled. The mode switching electronic tag recognition system characterized in that for transmitting the information on the strength of the signal in the UHF or microwave frequency band. The method of claim 22, The frequency of the signal in the low frequency band is 125KHz, And a mode switching electronic tag in an active mode state communicates with the mode switching electronic tag recognizing apparatus using a frequency signal of 2.4 GHz. The method of claim 23, wherein The mode switching electronic tag in the active mode state of the mode switching electronic tag recognition system using a signal in the frequency range of 860MHz ~ 930MHz communication with the mode switching method. The method of claim 22, wherein the server, And a mode switching method according to the magnitude of the reception strength, the electronic tag recognition system of the mode switching method, characterized in that the indication to provide the service to the electronic tag holder.

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