KR20170016247A - Tag for power supply control and method for controlling power supply in sleep mode by using the tag - Google Patents

Abstract

Provided are a power supply control tag and a method for controlling power supply in a standby mode of a terminal using the same. The power supply control tag receives a tag operation signal while the power supply control tag is included in a terminal in a standby mode. The terminal operates in a wake-up mode switched from the standby mode according to a mode in which the power supply control tag is operated the tag operation signal.

Description

[0001] The present invention relates to a power supply control tag and a method of controlling power supply in a standby mode using the power supply control tag,

The present invention relates to a power supply control tag and a method of controlling power supplied to a terminal in a standby mode using the same.

Beacons (eg, iBeacon apps, beacon cards, etc.) have been developed for indoor location measurement based on low-power Bluetooth as the requirements for the Internet of Things (IoT) service increase. In addition, various types of IoT terminals for Internet service of objects are being developed, and development of portable terminals for attaching batteries is also increasing.

A mobile terminal or a portable terminal uses battery power. A representative example of a portable terminal operating with a battery is a smart phone, a sensor node, and the like. A portable terminal such as a smart phone can be recharged and recharged from time to time when an individual is portable while there is no power source, and the sensor node is used until the battery is exhausted without being charged in a portable or fixed position. Since the battery life of the terminal using such battery power is the lifetime of the terminal, a method of minimizing the power consumption of the terminal is required.

In order to reduce the power consumption of the portable terminal using the battery, the portable terminal is in a deep sleep mode for a period of time during which the portable terminal does not operate, and then wakes up when a signal for operation is received . The most widely used technique for wakeup technology is a method in which a RF (radio frequency) rectifier device is used to receive a signal for a certain period of time in a rectifier device.

Power consumption occurs even in a standby mode because a minimum number of devices must operate in order for a portable terminal using battery power to receive a wakeup signal even in a standby mode. Accordingly, the terminal may operate in an undesired place or a position of the terminal may be exposed. Particularly, in the power consumption, the power of the standby mode is smaller than the operating current at the time of wake-up, but the peak current is consumed for a long period of time, thereby occupying about 50% . That is, in the portable terminal, it is required to reduce the power consumption in the standby mode because the power consumption in the standby mode occupies more than the power consumption due to the operation in the total power consumption.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a power supply control method for reducing power consumption in a mobile terminal using a battery by reducing a current consumed in a standby mode.

In addition, a problem to be solved by the present invention is to provide a power supply control tag.

A power supply control method according to a feature of the present invention is a method of controlling power supply of a terminal in a standby mode in a state in which a power supply control tag is included in a terminal and the power supply control tag receives Operating in a normal mode or a secure mode; If the predetermined wake-up condition is a security mode, operating the terminal in a wake-up mode from a standby mode if the power-supply control tag is operated in a secure mode; And if the predetermined wakeup condition is a normal mode, if the power supply control tag is operated in a normal mode, the terminal operates in a wakeup mode from a standby mode.

The step of operating the power supply control tag in the normal mode or the security mode may include: operating the power supply control tag in a security mode when the tag operation signal is a signal related to service provision; And operating the power supply control tag in a normal mode when the tag operation signal is not a signal related to service provision.

The step of operating in the normal mode may comprise: immediately after the operating power is generated using the propagation energy according to the tag operation signal, or while the power supply control tag operates as a passive RFID (radio frequency identification) tag, And transmitting a signal that the tag operates in the normal mode to the terminal.

In the step of operating in the security mode, after transmitting a signal operating in the normal mode to the terminal, when the authentication of an object transmitting the tag operation signal is performed, the power supply control tag operates in a security mode And transmitting the signal to the terminal.

A power supply control tag according to another aspect of the present invention includes an analog signal processing unit for receiving a tag operation signal transmitted from an interrogator and transmitting response data to be applied in a power supply control tag for controlling power supply of a terminal; A digital signal processing unit for demodulating the tag operation signal to acquire data, and delivering return data for the obtained data to the analog signal processing unit; A security processing unit for performing authentication on the reader based on data transmitted from the digital signal processing unit; And a switching unit for transmitting a signal according to a power supply control tag operation to the terminal according to data transmitted from the digital signal processing unit and whether or not the security processing unit performs authentication.

Wherein the switching unit comprises: a security mode switch that operates when the authentication is performed by the security processing unit and outputs a security mode operation signal; And a normal mode switch that operates when the tag operation signal is received but authentication is not performed, thereby outputting a normal mode operation signal.

Immediately after the operation power is generated by using the radio wave energy according to the tag operation signal, or while the power supply control tag operates as a passive RFID (radio frequency identification) tag, the normal mode switch is operated, The security mode switch may be operated to output a security mode operation signal when authentication by the security processing unit is performed.

In addition, the power supply control tag may further include a memory unit including security data for authentication of the security processing unit.

A security engine for encrypting and transmitting data for authentication with the reader in cooperation with the analog signal processor; And a security logic controller for performing an operation control of encryption of the security engine and for transmitting an authentication result to the digital signal processor.

A terminal according to another aspect of the present invention includes: a power supply control tag which receives a tag operation signal transmitted from a reader and operates according to the tag operation signal; And a wireless communication unit operating in a wake-up mode according to an operation mode of the power supply control tag in a standby mode.

In addition, the terminal may further include a switching unit for outputting a security mode operation signal when the power supply control tag performs authentication for the reader, and for outputting a normal mode operation signal when the authentication is not performed .

Wherein the wireless communication unit operates in a wakeup mode when a pre-set wakeup condition is a normal mode and a normal mode operation signal is output from the switching unit, and when the wakeup condition is a security mode, When the operation signal is output, it can operate in the wake-up mode.

The wireless communication unit includes a power switch connected to the battery; And a communication controller for operating the power switch in a wake-up mode according to a signal transmitted from the switching unit.

The switching unit may be configured to generate the normal mode operation signal immediately after the operation power of the power supply control tag is generated using the radio wave energy according to the tag operation signal or while the power supply control tag operates as a passive RFID And outputs a security mode operation signal when authentication by the security processing unit is performed.

The wireless communication unit may operate in a wakeup mode when a security mode operation signal is output after a normal mode operation signal is output from the switching unit when a predetermined wakeup condition is a security mode.

According to the embodiment of the present invention, in a terminal using a battery, power supplied from a battery in a standby mode can be effectively controlled to reduce a current consumed in a standby mode. In particular, the battery power supply can be effectively controlled in the standby mode operation of the terminal by using a switch having a power switch function and a security authentication function and a tag having a security function.

In addition, since the terminal can be woken up after the security authentication in the standby mode, it is possible to prevent the terminal from waking up in an unnecessary area and thereby to prevent exposure of unwanted information.

1 is an exemplary diagram illustrating an environment for providing a radio frequency identification (RFID) service.
2 is a diagram illustrating a structure of a power supply control tag according to an embodiment of the present invention.
3 is a diagram illustrating a structure of a switching unit according to an embodiment of the present invention.
4 is a diagram illustrating a structure of a terminal including a power supply control tag according to an embodiment of the present invention.
5 is a diagram illustrating a case where a service for a terminal equipped with a power supply control tag according to an embodiment of the present invention is provided.
6 is a flowchart of a power supply control method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Hereinafter, a power supply control tag according to an embodiment of the present invention and a power supply control method in a standby mode of a terminal using the same will be described with reference to the drawings.

In the embodiment of the present invention, the power supplied from the battery during the standby mode operation of the terminal is controlled using the switch having the power switch function and the security authentication function and the tag having the security function.

For example, an RFID system using radio frequency identification (RFID) is divided into a mutual induction method and an electromagnetic wave method according to a mutual communication method between a reader and a tag. And passive type. The RFID service can be provided as follows using a passive tag.

1 is an exemplary diagram showing an environment for providing an RFID service.

In an environment providing RFID service, if RF power is transmitted from the reader 1 to the tag 2 through the antenna, the tag 2 without power supplies the RF power through the antenna, To transmit some power into the tag and some power to be reflected. The magnitude of the power reflected by the tag 2 can be adjusted by changing the load of the tag antenna and the data amount is transmitted to the reader 1 by adjusting the amount of power reflected from the antenna of the tag 2. When the reader 1 receives the data from the tag 2 and recognizes the tag ID, it transmits the tag ID information to the server 3, and the server 3 extracts the related information based on the tag ID and provides the service .

In the embodiment of the present invention, the power consumption in the idle mode of the terminal is reduced using the characteristics of the passive RFID tag.

2 is a diagram illustrating a structure of a power supply control tag according to an embodiment of the present invention.

The power supply control tag 100 of the terminal according to the embodiment of the present invention includes an analog signal processing unit 110, a digital signal processing unit 120, a switching unit 130, a security processing unit 140, and a memory unit 150 .

The analog signal processing unit 110 receives and demodulates a signal received through an antenna, generates operating power, and supplies the generated power to the units 120, 130, 140, and 150.

The analog signal processing unit 110 includes a matching unit 111 receiving a signal received through an antenna, a voltage multiplier 112, a voltage regulator 113, a demodulator 114, and a modulator 115 do.

The matching unit 111 can convert the power of a signal received from an antenna, that is, a radio frequency (RF) signal, into a direct current (DC) voltage.

The voltage multiplier 112 generates power based on a signal output from the matching unit 111, and the voltage regulator 113 adjusts the generated power to supply operating power having an appropriate voltage.

The demodulator 114 demodulates the signal output from the matching unit 111 to acquire data (command word or the like), and transmits the acquired data to the digital signal processing unit 120.

The modulator 115 modulates data transmitted from the digital signal processor 120. The modulated data is transmitted via the antenna.

The digital signal processing unit 120 operates according to the operation power generated from the analog signal processing unit 110 and performs an operation corresponding to the received data and transmits information according to the performed operation to the analog signal processing unit 110 .

The digital signal processing unit 120 includes a data analyzer 121, an execution engine 122, and a reply controller 123.

The data decoder 121 decodes the data provided from the demodulator 114 of the analog signal processor 110. The data analyzer 121 decodes the data, acquires a command or the like received from the reader, and transmits the command or the like to the execution engine 122.

The execution engine 122 performs an operation corresponding to the decrypted data (for example, an instruction) transmitted from the data decoder 121.

The reply controller 123 transmits the execution information according to the performance of the execution engine 122. To this end, the return controller 123 transfers the execution information to the modulator 115 of the analog signal processing unit 121. [

Meanwhile, the security processing unit 130 performs authentication and security functions.

The power supply control tag 100 according to the embodiment of the present invention operates in two modes, a general mode in which a general passive tag operates and a security mode in which a security function is performed.

In the normal mode in which the power supply control tag 100 operates with a general passive tag, a control signal is generated immediately after the operation power is generated using the propagation energy according to the RF power from the reader, The switch function can be performed.

When the power supply control tag 100 operates in the security mode, the security processing unit 130 includes a security engine 131 that performs encryption and a security logic controller 132 that performs encryption operation control.

Security engine 131 performs an encryption algorithm in secure mode operation. Specifically, the security engine 131 performs a security authentication function by performing a predetermined security algorithm between the tag and the reader. If the authentication is successful, the control unit 140 generates a control signal after security authentication and transmits the control signal to the switching unit 140. If the data received from the reader is encrypted, the security engine 131 can decrypt the data and perform authentication. For example, authentication can be performed on the identifier of the reader. Here, the encryption algorithm may be an encryption algorithm such as AES128.

The security logic controller 132 may operate the security engine 131 based on the data transmitted from the execution engine 122 and may perform the decryption and authentication processing.

In secure mode operation, the security engine 131 performs an encryption algorithm. Specifically, the security engine 131 performs a security authentication function by performing a predetermined security algorithm between the tag and the reader. If the authentication is successful, the control unit 140 generates a control signal after security authentication and transmits the control signal to the switching unit 140. In this case, the control signal may be transmitted to the switching unit 140 through the execution engine 122.

Meanwhile, a security mode operation can be performed even if a general passive RFID tag operation procedure is followed without designing a separate encryption module such as AES 128 for security mode operation. In this case, the security engine 131 performs an encryption procedure requiring an additional command among general operation procedures of the passive RFID tag and generates a security mode control signal after completing the password authentication of the tag to perform a switch function . In this case, the control signal may be transmitted to the switching unit 140 through the execution engine 122.

The memory unit 140 includes an execution memory 141 that stores data required by the execution engine 122, a security memory 142 that includes security-related information, a memory controller that controls access to the memory 143). Meanwhile, the switching unit 150 supplies power to the terminal 200 to which the power supply control tag 100 is applied, for example. In particular, the terminal 200 performs power control in a standby mode.

3 is a diagram illustrating a structure of a switching unit according to an embodiment of the present invention.

As shown in FIG. 3, the switching unit 150 includes a normal mode switch 151 and a security mode switch 152.

When the power supply control tag 100 operates on a general passive tag and receives and detects a signal transmitted from the reader, the normal mode switch 151 outputs a signal search control signal S1, which is transmitted from the execution engine 122, . ≪ / RTI >

The security mode switch 152 is a switch operating according to the security-authenticated control signal S2 transmitted from the execution engine 122 when the power supply control tag 100 operates in the security mode. In the case of operating in the security mode, the power supply control tag 100 does not operate by sensing a signal transmitted from a general reader, but performs a security authentication function by performing a security algorithm between the tag and the reader, And outputs a control signal after security authentication.

For example, when the corresponding control signal is at a high level, each of the switches, that is, the normal mode switch 151 and the security mode switch 152, can be converted from an Off state to an On state, State to the off-state again.

In this way, the switching function of the switching unit 150 is determined through the setting of the operation mode of the power supply control tag 100. As described above, the control signal for the operation of the switching unit 150 can be generated according to the operation mode set in the execution engine 122. Alternatively, the switching unit 150 may include a single switch. In this case, the execution engine 122 determines the normal mode and the security mode so that the corresponding switch is turned on or off A normal mode operation signal or a security mode operation signal may be output.

The power supply control tag 100 having the structure as described above can be applied to the terminal 200 to control the power consumption of the terminal 200.

4 is a diagram illustrating a structure of a terminal including a power supply control tag according to an embodiment of the present invention.

The terminal 200 may include a power supply control tag 100 and a wireless communication unit 210 as shown in FIG.

The power supply control tag 100 performs power control of the terminal and can be implemented as a passive RFID tag chip for a power control switch. Since the battery power for operation is not required for the power supply control tag 100, the standby power of the terminal is not consumed unlike the method using the RF element.

The wireless communication unit 210 performs signal transmission / reception with an external device. And provides an operation signal to each unit for signal transmission / reception using the switching function of the power supply control tag 100.

4, the wireless communication unit 210 includes a power supply unit 211, a power switch 212, a battery 213, a communication control unit 214, a wireless transceiver unit 215, and an antenna 216. In addition, the wireless communication unit 210 includes a key input unit 217, a display unit 218, and may further include a sensor unit 219.

The power supply unit 211 supplies the power supplied through the power supply switch 212 to the communication control unit 214. Power may be transmitted to each part of the wireless communication unit 210 of the terminal 200 through the communication control unit 214. However, the present invention is not limited to this.

The communication control unit 214 operates the power switch 212 in accordance with a signal provided from the power supply control tag 100 and the power switch 212 is operated to minimize the power consumption in the standby mode of the wireless communication unit 200 And supplies or cuts off the power from the battery 213 to the power source unit 211. [

The communication control unit 214 may receive a signal supplied from the power supply control tag 100 through the power supply unit 211, but the present invention is not limited thereto.

The communication control unit 214 operates the power switch 212 when a normal mode operation signal or a security mode operation signal is output from the power supply control tag 100. [ That is, the power switch 212 is turned on and the power switch 212 is turned off after the predetermined operation is completed through the wireless transceiver 215.

The terminal 200 having such a structure can operate in the standby mode, and can operate in the wakeup mode in accordance with the wake-up condition preset in the standby mode. When the power supply control tag 100 operates in the normal mode, the wakeup condition of the power supply switch 212 is set to the power supply control tag 100 when the normal mode operation signal is output from the power supply control tag 100 in the standby mode, To operate the terminal 200 in the wakeup mode. If the power supply control tag 100 operates in the security mode, the communication control unit 214 controls the power supply switch (not shown) 212 to operate the terminal 200 in the wake-up mode.

5 is a diagram illustrating a case where a service for a terminal equipped with a power supply control tag according to an embodiment of the present invention is provided. 6 is a flowchart of a power supply control method according to an embodiment of the present invention.

It is assumed that the terminal 200 according to the embodiment of the present invention is implemented in a form including the power supply control tag 100 and receives the service in the environment shown in FIG. A wake-up reader 300 functioning as a reader for recognizing a tag in an environment as shown in FIG. 5, and a wireless access point (AP) for connection to a communication network. For example, the wake-up reader 300 can perform the function of reading tag information through short-range communication with the power supply control tag 100, which is a tag for power control, installed at an entrance. To this end, the wake-up reader 300 transmits a signal for operating the tag.

5, the power supply control tag 100 of the terminal 200 receives a signal transmitted from the wake-up reader 300, that is, a tag operation signal . In a state where the terminal 200 is operating in the standby mode, the power supply control tag 100 receives the tag operation signal from the wake-up reader 300 (S100, S110).

(Normal mode operation signal or security mode operation signal) from the power supply control tag 100 to the wireless communication unit 210 of the terminal 200 in a state where the terminal 200 is operating in the standby mode Is not in the state. That is, since the normal mode switch 151 and the security mode switch 152 of the switching unit 150 of the power supply control tag 100 are both off, the normal mode operation signal and the security mode operation signal are transmitted to the wireless communication unit 210, . In this case, the communication control unit 214 of the wireless communication unit 210 turns off the power switch 212 to turn off the power from the battery 213 to the power supply unit 211 when the terminal 200 does not perform any other operation Not supplied. As a result, in the standby mode, power supply to the wireless communication unit 210 of the terminal 200 is cut off, and the power consumption in the standby mode can be reduced.

In this standby mode, when the power supply control tag 100 receives the tag operation signal transmitted from the wake-up reader 300 (S100), the power supply control tag 100 operates in the normal mode or the security mode.

The power supply control tag 100 receives and processes the tag operation signal and determines a normal mode or a security mode. For example, when the received tag operation signal is a signal transmitted from a general reader (for example, a passive RFID reader), it operates in a normal mode. In this case, the power supply control tag 100 operates the normal mode switch 151 of the switching unit 150 immediately after the operation power is generated using the radio wave energy according to the RF power from the reader or during the passive RFID tag operation procedure . The normal mode operation signal is outputted to the wireless communication unit 210 (S120 and S130) as the normal mode switch 151 is operated.

In addition, the power supply control tag 100 operates in the security mode. For example, when the tag operation signal is a signal related to service provision rather than a signal transmitted by a general reader, the power supply control tag 100 operates in a security mode. In this case, the power supply control tag 100 operates the terminal according to the authentication result of performing security authentication.

Specifically, when the tag operation signal is not a signal transmitted by a general reader but a signal related to service provision or the like, the security processing unit 130 of the power supply control tag 100 transmits the tag operation signal to the corresponding reader, When the wake-up reader 300 requests authentication information from the wake-up reader 300 based on the received information, the wake-up reader 300 notifies the execution engine 122 of the authentication result. The execution engine 122 operates the secure mode switch 152 of the switching unit 150 when authentication to the wake-up reader 300 is made. Accordingly, the security mode operation signal is output to the wireless communication unit 210 (S140) as the security mode switch 152 is operated, that is, turned on. At this time, in the security mode operation, both the normal mode switch control signal and the security mode switch control signal of the power supply control tag 100 are turned ON. When the normal mode switch control signal is first turned ON and the security mode control signal is turned ON later State.

The communication control unit 214 of the wireless communication unit 210 of the terminal 200 selectively wakes up based on a signal output in accordance with the operation mode of the power supply control tag 100 in the standby mode.

When the power supply control tag 100 operates in the normal mode, the normal mode switch 151 of the power supply control tag 100 is operated and the normal mode operation signal is received by the wireless communication unit 210 That is, when the power supply control tag 100 operates in the normal mode (S150, S160), the terminal 200 operates in the wakeup mode from the standby mode. Specifically, the communication control unit 214 of the terminal 200 operates the power switch 212 to wake up the terminal 200 (S170). At this time, if the normal mode operation signal is not transmitted from the power supply control tag 100, the terminal 200 maintains the standby mode state (S180).

When the power supply control tag 100 operates in the security mode, the security mode switch 151 of the power supply control tag 100 is operated and the security mode operation signal When the power supply control tag 100 operates in the secure mode (S190), the terminal 200 operates in the wakeup mode from the standby mode. At this time, the terminal 200 maintains the standby mode without operating the power switch 212 even though the normal mode switch 151 is turned on according to the tag operation signal to transmit the normal mode operation signal (S180). When the security mode operation signal is transmitted after the normal mode operation signal is transmitted, the power switch 212 is operated to operate in the wakeup mode in the standby mode (S180).

The power from the battery 213 is supplied to the respective units via the power supply unit 211 through the power switch 212 so that the wireless communication unit 210 of the terminal 200 can operate So that it is possible to transmit and receive signals with the outside. When the terminal 200 is woken up in a service environment as shown in FIG. 5, for example, the terminal 200 can receive various services provided from the server 400 through the wireless AP 400.

It is also possible to include the power supply switch 212 in the terminal 200 in the power supply control tag 100 in the above operation. The wakeup condition may be set at the time of manufacturing the terminal 200 or the power supply control tag 100 or may be set in a separate selection process (for example, condition setting through a switch or condition setting via a separate program . ≪ / RTI >

In this way, when the terminal 200 does not operate in order to minimize power consumption, the terminal 200 is in a standby mode for interrupting power supply to a plurality of function modules, and wakes up at the time when the terminal 200 is to be operated. Further, the terminal does not perform signal detection for wake-up even in the standby mode, and is woken up according to a signal applied from the power supply control tag, so that power consumption of the terminal is hardly obtained. As a result, the standby power of 1uA is reduced to 1nA, which reduces power consumption by about 1/100 in standby mode.

Also, the terminal may operate by recognizing a signal transmitted from the wireless AP as a wake up signal even in a place where a service is not desired or provided by a certain wireless AP. According to an embodiment of the present invention, Power is supplied to the terminal when security authentication is performed through the terminal, thereby preventing power consumption due to an unnecessary wakeup operation of the terminal. Further, the security can be improved by waking up the terminal in the standby mode after the security authentication for the object to which the signal is transmitted.

The embodiments of the present invention are not limited to the above-described apparatuses and / or methods, but may be implemented through a program for realizing functions corresponding to the configuration of the embodiment of the present invention, a recording medium on which the program is recorded And such an embodiment can be easily implemented by those skilled in the art from the description of the embodiments described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

Claims (15)

In a method of controlling power supply of a terminal in a standby mode,
The power supply control tag receiving a tag operation signal and operating in a normal mode or a security mode in a state where a power supply control tag is included in the terminal;
If the predetermined wake-up condition is a security mode, operating the terminal in a wake-up mode from a standby mode if the power-supply control tag is operated in a secure mode; And
When the predetermined wakeup condition is the normal mode, operating the wakeup mode when the power supply control tag operates in the normal mode;
/ RTI > The method of claim 1, wherein
Wherein the power supply control tag is operated in a normal mode or a secure mode,
Operating the power supply control tag in a secure mode when the tag operation signal is a signal related to service provision; And
When the tag operation signal is not a signal related to service provision, the power supply control tag operates in a normal mode
/ RTI > The method according to claim 2, wherein
Wherein the operating in the normal mode comprises:
The power supply control tag may operate in the normal mode immediately after the operation power is generated using the radio wave energy according to the tag operation signal or during operation of the power supply control tag as a passive RFID tag To the terminal
Lt; / RTI > The method of claim 3, wherein
The step of operating in the secure mode
Transmitting a signal operating in the normal mode to the terminal and transmitting a signal for operating the security mode of the power supply control tag to the terminal when authentication is performed for an object to which the tag operation signal is transmitted
/ RTI > In a power supply control tag for controlling the power supply of the terminal,
An analog signal processing unit for receiving the tag operation signal transmitted from the reader and transmitting the received response data;
A digital signal processing unit for demodulating the tag operation signal to acquire data, and delivering return data for the obtained data to the analog signal processing unit;
A security processing unit for performing authentication on the reader based on data transmitted from the digital signal processing unit; And
A switching unit for transmitting a signal according to a power supply control tag operation to the terminal according to data transmitted from the digital signal processing unit and whether or not the security processing unit performs authentication,
And a power supply control tag. The method of claim 5, wherein
The switching unit
A security mode switch that operates when the authentication is performed by the security processing unit and outputs a security mode operation signal; And
A normal mode switch that operates when the tag operation signal is received but authentication is not performed and outputs a normal mode operation signal;
A power supply control tag The method of claim 6, wherein
Immediately after the operation power is generated by using the radio wave energy according to the tag operation signal, or while the power supply control tag operates as a passive RFID (radio frequency identification) tag, the normal mode switch is operated, The security mode switch is operated to output a security mode operation signal when authentication by the security processing unit is performed. The method of claim 5, wherein
A memory unit including security data for authentication of the security processing unit,
Further comprising a power supply control tag The method of claim 5, wherein
The security processing unit
A security engine for encrypting and transmitting data for authentication with the reader in cooperation with the analog signal processor; And
A security logic controller for performing an operation control of encryption of the security engine and transmitting an authentication result to the digital signal processor;
A power supply control tag A power supply control tag which receives a tag operation signal transmitted from a reader and operates in accordance with the tag operation signal; And
A wireless communication unit operating in a wake-up mode according to an operation mode of the power supply control tag in a standby mode,
. The method of claim 10, wherein
And outputs a security mode operation signal when the power supply control tag performs authentication with respect to the reader and outputs a normal mode operation signal when the authentication is not performed,
Further comprising: The method of claim 11, wherein
Wherein the wireless communication unit operates in a wakeup mode when a pre-set wakeup condition is a normal mode and a normal mode operation signal is output from the switching unit, and when the wakeup condition is a security mode, And operates in a wakeup mode when an operation signal is output. The method of claim 12, wherein
The wireless communication unit
A power switch connected to the battery; And
And a communication controller for operating the terminal in a wakeup mode by operating the power switch according to a signal transmitted from the switching unit,
. The method of claim 12, wherein
The switching unit may be configured to generate the normal mode operation signal immediately after the operation power of the power supply control tag is generated using the radio wave energy according to the tag operation signal or while the power supply control tag operates as a passive RFID And outputs a security mode operation signal when authentication by the security processing unit is performed. The method of claim 14, wherein
Wherein the wireless communication unit operates in a wakeup mode when a security mode operation signal is output after a normal mode operation signal is output from the switching unit when a predetermined wakeup condition is a security mode.

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