KR20230166275A - Dual band tag ic including shared radio frequency analog circuit and shared memory device, and system including the same - Google Patents

Abstract

The dual-band wireless tag IC receives a first modulation signal modulated with a first carrier wave from a first wireless communication terminal and transmits a first transmission modulation signal modulated using a first load modulation to the first wireless communication terminal. an interface, a high frequency interface for receiving a second modulated signal modulated with a second carrier wave from a second wireless communication terminal and transmitting a second transmission modulated signal modulated using a second load modulation to the second wireless communication terminal; When the first modulated signal is received from the low-frequency interface, the first modulated signal is demodulated to generate a first demodulated signal, and when the second modulated signal is received from the high-frequency interface, the second modulated signal is demodulated. A shared wireless analog circuit that generates a second demodulated signal, a shared memory device that stores sensed data, and a device that reads the sensed data from the shared memory device in response to the first demodulated signal and transmits it to the shared wireless analog circuit. It includes a low-frequency logic circuit and a high-frequency logic circuit that reads the sensed data from the shared memory device in response to the second demodulation signal and transmits it to the shared wireless analog circuit.

Description

Dual band tag IC including a shared wireless analog circuit and a shared memory device and a system including the same

The present invention relates to a dual-band tag IC, and more particularly to a dual-band tag IC including a shared wireless analog circuit and a shared memory device, and a system including the same.

Among short-range wireless communication methods, Radio Frequency Identification (RFID) is widely applied to various fields of life such as logistics, distribution, and security.

RFID attaches an electronic tag to a specific object and then uses wireless communication technology to allow an RFID reader to recognize the electronic tag, thereby detecting and processing information about the specific object to which the electronic tag is attached and surrounding situation information in real time. technology that can be used. In other words, the RFID reader receives the identification information of the electronic tag from the electronic tag existing in the same radio frequency recognition area, detects and processes it in real time.

Public patent publication: Publication number 10-2018-0095339 (published on August 27, 2018) Public Patent Publication: Publication No. 10-2012-0139613 (published on December 27, 2012) Registered Patent Gazette: Registration No. 10-1389458 (announced on April 28, 2014) Registered Patent Gazette: Registration No. 10-1759431 (announced on July 31, 2017)

The technical problem to be achieved by the present invention is to provide a dual-band tag IC including a shared wireless analog circuit and a shared memory device and a system including the same.

A dual-band wireless tag IC according to an embodiment of the present invention receives a first modulated signal modulated with a first carrier wave from a first wireless communication terminal and transmits a first transmission modulated signal modulated using a first load modulation to the first wireless communication terminal. A low-frequency interface transmitted to a wireless communication terminal, a second modulated signal modulated with a second carrier wave is received from the second wireless communication terminal, and a second transmitted modulated signal modulated using a second load modulation is received from the second wireless communication terminal. a high-frequency interface that transmits to a high-frequency interface, and when the first modulated signal is received from the low-frequency interface, the first modulated signal is demodulated to generate a first demodulated signal, and when the second modulated signal is received from the high-frequency interface, the A shared wireless analog circuit that demodulates a second modulated signal to generate a second demodulated signal, a shared memory device that stores sensed data, and reads the sensed data from the shared memory device in response to the first demodulated signal to It includes a low-frequency logic circuit for transmitting to the shared wireless analog circuit, and a high-frequency logic circuit for reading the sensed data from the shared memory device in response to the second demodulation signal and transmitting it to the shared wireless analog circuit.

The biometric information measurement system according to an embodiment of the present invention generates an operation command according to a dual-band wireless tag IC and a command output from the dual-band wireless tag IC, and detects data corresponding to the biometric information detection signal to the dual-band wireless tag IC. A main control logic circuit that transmits to a wireless tag IC, a sensor that generates the biometric information detection signal, controls the detection operation of the sensor according to the operation command, and receives the biometric information detection signal output from the sensor. It includes a sensor controller that transmits to the main control logic circuit, and the dual-band wireless tag IC receives a first modulated signal modulated with a first carrier wave from the first wireless communication terminal and modulates the first modulated signal using the first load modulation. 1 A low-frequency interface that transmits a transmission modulation signal to the first wireless communication terminal, and a second transmission modulation signal that receives a second modulation signal modulated with a second carrier wave from the second wireless communication terminal and is modulated using a second load modulation. A high frequency interface for transmitting a signal to the second wireless communication terminal, demodulating the first modulation signal to generate a first demodulation signal when the first modulation signal is received from the low frequency interface, and generating a first demodulation signal from the high frequency interface. When a second modulated signal is received, a shared wireless analog circuit that demodulates the second modulated signal to generate a second demodulated signal, a shared memory device that stores the sensed data under control of the main control logic circuit, and the first 1. A low-frequency logic circuit that reads the sensed data from the shared memory device in response to a demodulation signal and transmits it to the shared wireless analog circuit, and reads the sensed data from the shared memory device in response to the second demodulation signal and transmits the sensed data to the shared wireless analog circuit. It contains high-frequency logic circuitry that transmits to a shared wireless analog circuit.

In a method of measuring biometric information using a first wireless reader, a second wireless reader, and a biometric information measurement system according to an embodiment of the present invention, the biometric information measurement system includes a dual-band wireless tag IC, and the dual-band wireless A main control logic circuit that interprets commands output from a tag IC to generate operation commands and transmits detection data corresponding to a biometric information detection signal to the dual-band wireless tag IC, a sensor that generates the biometric information detection signal, and , a sensor controller that controls the detection operation of the sensor according to the operation command, receives the biometric information detection signal output from the sensor and transmits it to the main control logic circuit, and the method of measuring the biometric information includes: A low-frequency interface of the dual-band wireless tag IC receiving a first modulated signal generated by modulating a sensor operation command into a first carrier wave from the first wireless reader, and a demodulator of the dual-band wireless tag IC using the low-frequency interface. Receiving and demodulating the first modulation signal output from to generate a first demodulation signal, a low frequency logic circuit of the dual-band wireless tag IC generating the command corresponding to the first demodulation signal, and the main control logic circuit receiving the sensing data and storing it in a shared memory device of the dual-band wireless tag IC.

The dual-band tag IC according to an embodiment of the present invention includes one shared wireless analog circuit that can be commonly used by the low-frequency interface and the high-frequency interface, so both the low-frequency RF analog circuit dedicated to the low-frequency interface and the high-frequency RF analog circuit dedicated to the high-frequency interface. Compared to a conventional RF tag IC including a, there is an effect of reducing the area occupied by the shared wireless analog circuit.

Since the dual-band tag IC according to an embodiment of the present invention includes one shared memory device that can be commonly used by the low-frequency logic circuit and the high-frequency logic circuit, a non-volatile memory device dedicated to the low-frequency logic circuit and a non-volatile memory device dedicated to the high-frequency logic circuit Compared to a conventional RF tag IC that includes both memory devices, the area occupied by the single shared memory device can be reduced.

In order to more fully understand the drawings cited in the detailed description of the present invention, a detailed description of each drawing is provided.
1 is a block diagram of a biometric information processing system including a dual-band tag IC including a shared wireless analog circuit and a shared memory device according to an embodiment of the present invention.
FIG. 2 is a block diagram of the dual-band tag IC shown in FIG. 1.
FIG. 3 is a data flow explaining a process of operating a sensor and storing sensed data in a shared memory device using the first terminal and the dual-band tag IC shown in FIG. 2.
FIG. 4 is a data flow illustrating a process of reading sensed data stored in a shared memory device according to the data flow shown in FIG. 3 using a second terminal and the dual-band tag IC shown in FIG. 2.
FIG. 5 is a data flow explaining a process of reading sensed data using the first terminal and the dual-band tag IC shown in FIG. 2 according to the data flow shown in FIG. 3.
Figure 6 is an example of a graphical user interface of a mobile app running on a first terminal or a second terminal to perform a temperature measurement process or a blood sugar measurement process.
FIG. 7 is a data flow explaining the process of operating a sensor and storing sensed data in a shared memory device using a second terminal and the dual-band tag IC shown in FIG. 2.
FIG. 8 is a data flow explaining a process of reading sensed data stored in a shared memory device according to the data flow shown in FIG. 7 using the first terminal and the dual-band tag IC shown in FIG. 2.
FIG. 9 is a data flow explaining a process of reading sensed data using a second terminal and the dual-band tag IC shown in FIG. 2 according to the data flow shown in FIG. 7.

1 is a block diagram of a biometric information processing system including a dual-band tag IC including a shared wireless analog circuit and a shared memory device according to an embodiment of the present invention.

Referring to FIG. 1 , the biometric information processing system 100 includes a biometric information measurement system 110, a first reader 130, and a second reader 150. Each reader 130 and 150 may refer to a wireless reader, a wireless communication device, or a wireless communication terminal. For example, the first reader 130 may be a low-frequency RFID reader, the second reader 150 may be a high-frequency RFID reader or an NFC reader, and the second reader 150 may be a smartphone capable of NFC communication. , it may be a tablet PC, a laptop computer, an Internet of Things (IoT) device, or a wearable computer.

The biometric information measurement system 110 may be manufactured in a capsule form and inserted (or fixed) into the animal's body.

The biometric information measurement system 110 includes a first antenna (ANT1), a second antenna (ANT2), a dualband radio frequency tag integrated circuit (RF tag IC) 200, and a power management unit (PMU) 300. ), a main control logic circuit 310, a sensor controller 320, a first biosensor 330, and a second biosensor 340. The dual-band RF tag IC 200 is also called a transponder.

The first operating voltage (PW1) is transmitted to the PMU (300) through the first pin (201), and the sensing data (DATA) transmitted from the main control logic circuit (310) is transmitted to the dual band through the second pin (202). It is input to the RF tag IC (200). A pin may also be called a pad or port.

Depending on the embodiment, the biometric information measurement system 110 may further include an external battery 245 that supplies the second operating voltage (PW2) to the PMU (300). The external battery 245 may be a battery that can be charged using wireless charging technology.

The biometric information measurement system 110 and the first reader 130 transmit a first radio signal (RF1) modulated with the first carrier wave and a first transmission modulation signal (TRF1) modulated using the first load modulation to the first antenna. You can send and receive through (ANT1). For example, the first carrier wave may be any one of 125 kHz to 134.2 kHz.

Referring to FIG. 2, when the biometric information measurement system 110 and the first reader 130 exchange wireless signals (RF1 and TRF1), the low-frequency interface 212, the shared wireless analog circuit 220, and the low-frequency logic The circuit 230 may be enabled or activated, and depending on the embodiment, the shared memory device 240 may also be enabled or activated.

Depending on embodiments, the shared memory device 240 may be a volatile memory device or a non-volatile memory device, an example of the volatile memory device may be SRAM, and an example of the non-volatile memory device may be an EEPROM or a flash memory device. It can be.

The biometric information measurement system 110 and the second reader 150 transmit the second radio signal (RF2) modulated with the second carrier wave and the second transmission modulation signal (TRF2) modulated using the second load modulation to the second antenna. You can send and receive through (ANT2). For example, the second carrier may be 13.56Mhz.

Here, the first load modulation refers to load modulation to generate the first transmission modulation signal (TRF1), and the second load modulation refers to load modulation to generate the second transmission modulation signal (TRF2). do.

Referring to FIG. 2, when the biometric information measurement system 110 and the second reader 150 exchange wireless signals (RF2 and TRF2), a high frequency interface 214, a shared wireless analog circuit 220, and the high frequency logic circuit 235 may be enabled or activated, and depending on the embodiment, the shared memory device 240 may also be enabled or activated.

The shared wireless analog circuit 220 is an RFID signal using a low frequency band (i.e., a radio frequency (RF) signal using a frequency between 125 kHz and 134.2 kHz as a carrier wave) and an RFID signal using a high frequency band. It can process all signals (i.e. RF signals with 13.56 MHz as the carrier wave). Here, processing includes DC voltage generation, demodulation, modulation, and clock signal extraction.

The structure and operation of the dual-band RF tag IC 200 will be described in detail with reference to FIGS. 2 to 9.

The PMU 300 uses at least one of the first operating voltage PW1 energy harvested by the dual-band RF tag IC 200 and the second operating voltage PW2 supplied from the external battery 245. The operating voltage supplied to at least one of the components 310, 320, 330, and 340 can be managed.

For example, when the PMU (300) receives only the first operating voltage (PW1), the PMU (300) adjusts the level of the first operating voltage (PW1) received through the first pin 201, and adjusts the level The adjusted first operating voltage is supplied to at least one of the main control logic circuit 310, the sensor controller 320, and the sensors 330 and/or 340.

However, when the PMU (300) receives the first operating voltage (PW1) and the second operating voltage (PW2), the PMU (300) uses the first operating voltage (PW1) and the second operating voltage (PW2) Generates an operating voltage and supplies the operating voltage to at least one of the main control logic circuit 310, the sensor controller 320, and the sensors 330 and/or 340.

The main control logic circuit 310 operates at least one of the biosensors 330 and 340 according to the first MCU operation command (CMDa) or the second MCU operation command (CMDb) transmitted from the dual-band RF tag IC 200. Controls the operation of the sensor controller 320, which controls the operation.

For example, the sensor controller 320 controls the enabling and disabling of at least one of the biosensors 330 and 340 according to the control of the main control logic circuit 310, and controls the biosensors 330 and 340. The detection signal (SI1 and/or SI2) detected by at least one of 340) may be transmitted to the main control logic circuit 310.

The main control logic circuit 310, which operates according to the first MCU operation command (CMDa) or the second MCU operation command (CMDb) transmitted from the dual-band RF tag IC 200, receives a detection signal (SI1) transmitted from the sensor controller 320. and/or SI2), and the sensed data (DATA) may be stored in the shared memory device 240 or transmitted to the corresponding logic circuit 230 or 235.

Depending on embodiments, the main control logic circuit 310 may directly transmit the sensing data (DATA) to the corresponding logic circuit 230 or 235 without storing it in the shared memory device 240.

Depending on embodiments, the main control logic circuit 310 may store the sensed data (DATA) in the shared memory device 240 and then transmit it to the corresponding logic circuit 230 or 235, and send the sensed data (DATA) to the corresponding logic circuit 230 or 235. It may be transmitted to the logic circuit 230 or 235 and then stored in the shared memory device 240.

The first biosensor 300 may be a temperature sensor capable of measuring the body temperature of an animal, and the second biosensor 310 may be a blood sugar sensor capable of measuring the animal's blood sugar, but is not limited thereto.

FIG. 2 is a block diagram of the dual-band tag IC shown in FIG. 1, and FIG. 3 is a block diagram of operating a sensor using the first terminal and the dual-band tag IC shown in FIG. 2 and storing the sensed data in a shared memory device. This is a data flow that explains the process.

Referring to FIG. 2, the area occupied by the RF analog circuit 220 in the dual band RF tag IC 200 including one RF analog circuit 220 shared by the low frequency interface 212 and the high frequency interface 214. Compared to the area occupied by two separately operating RF analog circuits in a conventional RF tag IC, which includes both a low-frequency RF analog circuit dedicated to the low-frequency interface and a high-frequency RF analog circuit dedicated to the high-frequency interface, the area has the effect of being reduced by almost half.

In addition, as the low-frequency logic circuit 230 and the high-frequency logic circuit 235 share one memory device 240, the conventional memory device includes both a non-volatile memory device dedicated to the low-frequency logic circuit and a non-volatile memory device dedicated to the high-frequency logic circuit. Compared to the RF tag IC, the area occupied by the memory device 240 is reduced.

Referring to FIG. 2, the first output terminal (LO1) of the low-frequency interface 212, the first output terminal (HO1) of the high-frequency interface 214, and the second input terminal (IT2) of the demodulator 224 are the first output terminal (LO1) of the low-frequency interface 212. They are connected to each other through a transmission line (L1). The first output terminal (LO1) of the low-frequency interface 212 and the first output terminal (HO1) of the high-frequency interface 214 share the second input terminal (IT2) of the demodulator 224 through the transmission line (L1). do.

The second output terminal (LO2) of the low-frequency interface 212, the second output terminal (HO2) of the high-frequency interface 214, and the first input terminal (IT1) of the regulator 222 are connected to the second transmission line (L2). connected to each other through The second output terminal (LO2) of the low-frequency interface 212 and the second output terminal (HO2) of the high-frequency interface 214 are connected to the first input terminal (IT1) of the regulator 222 through the second transmission line (L2). They say they share it.

The input terminal (LO3) of the low-frequency interface 212, the input terminal (HO3) of the high-frequency interface 214, and the second output terminal (OT2) of the modulator 226 are connected to each other through the third transmission line (L3). . It is said that the input terminal (LO3) of the low-frequency interface 212 and the input terminal (HO3) of the high-frequency interface 214 share the second output terminal (OT2) of the modulator 226 through the third transmission line (L3).

Referring to FIGS. 1 to 3, the first reader 130 modulates the sensor operation command into a first carrier wave to generate a first modulation signal (RF1), and transmits the first modulation signal (RF1) to the biometric information measurement system (RF1). It is transmitted to the first antenna (ANT1) and second antenna (ANT2) of 110).

Since only the low-frequency interface 212 operates among the interfaces 212 and 214 that receive the first modulation signal RF1, the low-frequency interface 212 receives the first modulation signal RF1 transmitted from the first reader 130. It is received through the first antenna (ANT1) (S110), the first DC voltage (DC1) is generated using the first carrier included in the first modulation signal (RF1), and the first DC voltage (DC1) is configured ( It is transmitted to the regulator 222 through LO2, L2, and IT1), and the first modulation signal RF1 is transmitted to the demodulator 224 and the clock signal extractor 228 (S115).

The regulator 222 receives the first DC voltage (DC1) and regulates the first DC voltage (DC1) to generate the first operating voltage (PW1) (S120).

The demodulator 224 receives the first modulated signal RF1 output from the low-frequency interface 212 through the components LO1, L1, and IT2, and demodulates the received first modulated signal RF1 to produce a first modulated signal RF1. Generate a demodulation signal (DS1) (or extract a sensor operation command from the first modulation signal (RF1)), and send the first demodulation signal (or the extracted sensor operation command (DS1)) to the first output terminal (OT1). It is transmitted to the low-frequency logic circuit 230 and the high-frequency logic circuit 235 (S125).

For example, demodulator 224 may be an envelope detector using 100% Amplitude Shift Keying (ASK).

Only when the first modulation signal RF1 is transmitted to the clock signal detector 228, the clock signal detector 228 detects the first carrier wave included in the first modulation signal RF1 output from the low-frequency interface 212. The first clock signal (CLK1) is extracted, and the extracted first clock signal (CLK1) is transmitted to the low-frequency logic circuit 230 (S130).

As the first clock signal CLK1 is supplied to the low-frequency logic circuit 230, the low-frequency logic circuit 230 is activated. However, when the first modulation signal RF1 is transmitted to the clock signal detector 228, the clock signal detector 228 cannot extract the second clock signal CLK2 from the first modulation signal RF1. At this time, since the second clock signal CLK2 maintains a low level, the high frequency logic circuit 235 is deactivated.

However, only when the second modulation signal RF2 is transmitted to the clock signal detector 228, the clock signal detector 228 detects the second carrier wave included in the second modulation signal RF2 output from the high frequency interface 214. A second clock signal CLK2 is extracted from and transmitted to the high frequency logic circuit 235.

As the second clock signal CLK2 is supplied to the high frequency logic circuit 235, the high frequency logic circuit 235 is activated. However, when the second modulation signal RF2 is transmitted to the clock signal detector 228, the clock signal detector 228 cannot extract the first clock signal CLK1 from the second modulation signal RF2. At this time, since the first clock signal CLK1 maintains a low level, the low-frequency logic circuit 230 is deactivated.

The low-frequency logic circuit 230 operating according to the first clock signal (CLK1) corresponds to the first demodulation signal (or the extracted sensor operation command (DS1)) output from the first output terminal (OT1) of the demodulator 224. generates a first MCU command (CMDa) and transmits the first MCU command (CMDa) to the main control logic circuit 310 (S135).

The main control logic circuit 310 generates a first operation command (OPCi, i=1) corresponding to the first MCU command (CMDa) and transmits the first operation command (OPC1) to the sensor controller 320 (S140 ). The first operation command (OPC1) has a format that the sensor controller 320 can interpret.

The sensor controller 320 controls the operation of at least one biosensor 330 and 340 according to the first operation command OPC1 (S145). At least one biosensor (330 and 340) performs a sensing operation according to the first operation command (OPC1) (S150).

At least one biosensor (330 and 340) transmits a detection signal (SI1 and/or SI2) corresponding to the result of the detection operation to the sensor controller 320. That is, the sensor controller 320 receives the detection signal (SI1 and/or SI2) detected by at least one biosensor (330 and 340) (S155), and sends the detection signal (SI1 and/or SI2) to the main control. It is transmitted to the logic circuit 310 (S155).

The main control logic circuit 310 generates detection data (DATA) corresponding to the detection signal (SI1 and/or SI2) transmitted from the sensor controller 320 and directly stores (or writes) the sensed data (DATA) in the shared memory device 240. write (S160).

FIG. 4 is a data flow illustrating a process of reading sensed data stored in a shared memory device according to the data flow shown in FIG. 3 using a second terminal and the dual-band tag IC shown in FIG. 2.

Referring to FIGS. 1 to 4, the second reader 150 modulates the read command with a second carrier wave to generate a second modulation signal RF2, and transmits the second modulation signal RF2 to the biometric information measurement system 110. ) is transmitted to the first antenna (ANT1) and second antenna (ANT2).

Among the interfaces 212 and 214 that received the second modulation signal RF2, only the high frequency interface 214 operates, so the high frequency interface 214 receives the second modulation signal RF2 transmitted from the second reader 150. It is received through the second antenna (ANT2) (S210), a second DC voltage (DC2) is generated using the second carrier wave included in the second modulation signal (RF2), and the second DC voltage (DC2) is configured ( It is transmitted to the regulator 222 through HO2, L2, and IT1), and the second modulation signal RF2 is transmitted to the demodulator 224 and the clock signal extractor 228 (S215). Depending on embodiments, the level of the first DC voltage DC1 and the level of the second DC voltage DC2 may be the same or different from each other.

The regulator 222 receives the second DC voltage (DC2) and regulates the second DC voltage (DC2) to generate the first operating voltage (PW1) (S220).

The demodulator 224 receives the components (HO1, L1, and IT2) of the second modulated signal (RF2) output from the high frequency interface 214, and demodulates the received second modulated signal (RF2) to perform second demodulation. A read command is extracted from the signal (DS2, or the second modulation signal (RF2)) and the second demodulation signal (or the extracted read command (DS2)) is sent to the low-frequency logic circuit 230 through the first output terminal (OT1). and transmit to the high frequency logic circuit 235 (S225).

The clock signal detector 228 extracts the second clock signal (CLK2) from the second carrier wave included in the second modulation signal (RF2) output from the high frequency interface 214, and extracts the extracted second clock signal (CLK2). It is transmitted to the high frequency logic circuit 235 (S230). At this time, the low-frequency logic circuit 230 maintains an inactive state according to the first clock signal CLK1 having a low level.

The high-frequency logic circuit 235, which operates according to the second clock signal CLK2, operates according to the second demodulation signal (or the extracted read command DS2) output from the first output terminal OT1 of the demodulator 224. , reads the sensed data (DATA, for example, sensed data (DATA) stored in S160 of FIG. 3) stored in the shared memory device 240, and modulates the read sensed data (DATA) by the modulator 226. It is transmitted to the third input terminal (IT3) of (S235).

The modulator 226 modulates the sensed data (DATA) using the second load modulation and transmits the second transmission modulation signal (TRF2) generated through the low-frequency interface 212 and the high-frequency interface 214 through the components (OT2 and L3). ) (S240). However, even if the second transmit modulation signal TRF2 is transmitted to the low frequency interface 212 through the configurations OT2, L3, and LO3, the low frequency interface 212 is not operational.

The high frequency interface 214 transmits the second transmission modulation signal (TRF2) to the second reader 150 through the second antenna (ANT2) (S245). The second mobile app (APP2) of the second reader 150 receives and processes the second transmission modulation signal (TRF2), and displays the processed signal on the display device of the second reader 150 (S250).

Figure 6 is an example of a graphical user interface of a mobile app running on a first terminal or a second terminal to perform a temperature measurement process or a blood sugar measurement process.

Referring to FIGS. 3, 4, and 6, the sensor operation command or read command is generated by the graphical user interface (GUI1 or GUI2) of the mobile app (APPi, i is 1 or 2) running on the terminal 130 or 150. It may be a command generated by the mobile app (APP1 or APP2) when selected (this is also called 'click' or 'touch') by the user of the terminal 130 or 150.

The first mobile app (APP1) controls the first terminal 130 to generate a first modulation signal (RF1) to be transmitted to the biometric information measurement system 110, receives the first transmission modulation signal (TRF1), and 1 Temperature information (TEMP) and/or blood sugar information (or blood sugar level; BGV) corresponding to the transmission modulation signal (TRF1) may be displayed on the display device of the first terminal 130.

The second mobile app (APP2) controls the second terminal 150 to generate a second modulation signal (RF2) to be transmitted to the biometric information measurement system 110, receives the second transmission modulation signal (TRF2), and 2Temperature information (TEMP) and/or blood sugar information (BGV) corresponding to the transmission modulation signal (TRF2) may be displayed on the display device of the second terminal 150.

When the user selects the first graphical user interface (GUI1) for temperature measurement using the mobile app (APP1 or APP2), temperature information (TEMP) is displayed, and the user selects the first graphical user interface (GUI1) for temperature measurement using the mobile app (APP1 or APP2). When the second graphical user interface (GUI2) for blood sugar measurement is selected, blood sugar information (BGV) is displayed.

FIG. 5 is a data flow explaining a process of reading sensed data using the first terminal and the dual-band tag IC shown in FIG. 2 according to the data flow shown in FIG. 3.

1 to 3 and 5, the sensor controller 320 receives a detection signal (SI1 and/or SI2) detected by at least one biosensor 330 and 340 (S155), and detects The signal (SI1 and/or SI2) is transmitted to the main control logic circuit 310 (S155).

The main control logic circuit 310 generates sensing data (DATA) corresponding to the sensing signal (SI1 and/or SI2) transmitted from the sensor controller 320, and stores the sensing data (DATA) in the shared volatile memory device 240. ), the sensed data (DATA) is directly transmitted to the low-frequency logic circuit 230 and the high-frequency logic circuit 235 (310).

The low-frequency logic circuit 230 operating according to the first clock signal CLK1 transmits the sensed data DATA transmitted from the main control logic circuit 310 to the third input terminal IT3 of the modulator 226 ( S320).

The modulator 226 transmits the first transmission modulation signal (TRF1) generated by modulating the sensed data (DATA) using the first load modulation to the low-frequency interface 212 and the high-frequency interface 214 through the components (OT2 and L3). ) (S330). However, even though the first transmit modulation signal TRF1 is transmitted to the high frequency interface 214 through the components OT2, L3, and HO3, the high frequency interface 214 is not operational.

The low-frequency interface 212 transmits the first transmission modulation signal (TRF1) to the first reader 130 through the first antenna (ANT1) (S340). The first mobile app (APP1) of the first reader 130 receives and processes the first transmission modulation signal (TRF1) (S350), and displays the processed signal on the display device of the first reader 130 (S360) ). For example, the first mobile app (APP1) displays temperature information (TEMP) and/or blood sugar information (BGV) corresponding to the first transmission modulation signal (TRF1) on the display device of the first terminal 130.

FIG. 7 is a data flow explaining the process of operating a sensor and storing sensed data in a shared memory device using a second terminal and the dual-band tag IC shown in FIG. 2.

Referring to FIGS. 1, 2, and 7, the second reader 150 modulates the sensor operation command with a second carrier wave to generate a second modulation signal (RF2), and the second modulation signal (RF2) is transmitted to the living body. It is transmitted to the first antenna (ANT1) and the second antenna (ANT2) of the information measurement system 110.

Among the interfaces 212 and 214 that received the second modulation signal RF2, only the high frequency interface 214 operates, so the high frequency interface 214 receives the second modulation signal RF2 transmitted from the second reader 150. It is received through the second antenna (ANT2) (S410), a second DC voltage (DC2) is generated using the second carrier wave included in the second modulation signal (RF2), and the second DC voltage (DC2) is configured ( It is transmitted to the regulator 222 through HO2, L2, and IT1), and the second modulation signal RF2 is transmitted to the demodulator 224 and the clock signal extractor 228 (S415).

The regulator 222 receives the second DC voltage (DC2) and regulates the second DC voltage (DC2) to generate the first operating voltage (PW1) (S420).

The demodulator 224 receives the second modulated signal RF2 output from the high frequency interface 214 through the components HO1, L1, and IT2, and demodulates the received second modulated signal RF2 to generate a second modulated signal RF2. Generate a demodulation signal (DS2) (or extract a sensor operation command from the second modulation signal (RF2)), and send the second demodulation signal (or the extracted sensor operation command (DS2)) to the first output terminal (OT1). It is transmitted to the low-frequency logic circuit 230 and the high-frequency logic circuit 235 (S425).

Only when the second modulation signal RF2 is transmitted to the clock signal detector 228, the clock signal detector 228 detects the first signal from the second carrier included in the second modulation signal RF2 output from the high frequency interface 214. The second clock signal (CLK2) is extracted, and the extracted second clock signal (CLK2) is transmitted to the high frequency logic circuit 235 (S430).

As the second clock signal CLK2 is supplied to the high frequency logic circuit 235, the high frequency logic circuit 235 is activated. However, when the second modulation signal RF2 is transmitted to the clock signal detector 228, the clock signal detector 228 cannot extract the first clock signal CLK1 from the second modulation signal RF2. At this time, since the first clock signal CLK1 maintains a low level, the low-frequency logic circuit 230 is deactivated.

The high-frequency logic circuit 235 operating according to the second clock signal (CLK2) corresponds to the second demodulation signal (or the extracted sensor operation command (DS2)) output from the first output terminal (OT1) of the demodulator 224. A second MCU command (CMDb) is generated and the second MCU command (CMDb) is transmitted to the main control logic circuit 310 (S435).

The main control logic circuit 310 generates a second operation command (OPCi, i=2) corresponding to the second MCU command (CMDb) and transmits the second operation command (OPC2) to the sensor controller 320 (S440 ). The second operation command (OPC2) has a format that the sensor controller 320 can interpret.

The sensor controller 320 controls the operation of at least one biosensor 330 and 340 according to the second operation command OPC2 (S445). At least one biosensor (330 and 340) performs a sensing operation according to the second operation command (OPC2) (S450).

At least one biosensor (330 and 340) transmits a detection signal (SI1 and/or SI2) corresponding to the result of the detection operation to the sensor controller 320. That is, the sensor controller 320 receives the detection signal (SI1 and/or SI2) detected by at least one biosensor (330 and 340) (S455) and sends the detection signal (SI1 and/or SI2) to the main control. It is transmitted to the logic circuit 310 (S455).

The main control logic circuit 310 generates detection data (DATA) corresponding to the detection signal (SI1 and/or SI2) transmitted from the sensor controller 320 and directly stores (or writes) the sensed data (DATA) in the shared memory device 240. write (S460).

FIG. 8 is a data flow explaining a process of reading sensed data stored in a shared memory device according to the data flow shown in FIG. 7 using the first terminal and the dual-band tag IC shown in FIG. 2.

Referring to FIGS. 1, 2, 7, and 8, the first reader 130 modulates a read command with a first carrier wave to generate a first modulation signal (RF1), and the first modulation signal (RF1) is transmitted to the first antenna (ANT1) and the second antenna (ANT2) of the biometric information measurement system 110.

Since only the low-frequency interface 212 operates among the interfaces 212 and 214 that receive the first modulation signal RF1, the low-frequency interface 212 receives the first modulation signal RF1 transmitted from the first reader 130. It is received through the first antenna (ANT1) (S510), the first DC voltage (DC1) is generated using the first carrier included in the first modulation signal (RF1), and the first DC voltage (DC1) is configured ( It is transmitted to the regulator 222 through LO2, L2, and IT1), and the first modulation signal (RF1) is transmitted to the demodulator 224 and the clock signal extractor 228 (S515).

The regulator 222 receives the first DC voltage (DC1) and regulates the first DC voltage (DC1) to generate the first operating voltage (PW1) (S520).

The demodulator 224 receives the components LO1, L1, and IT2 of the first modulated signal RF1 output from the low-frequency interface 212, and demodulates the received first modulated signal RF1 to produce a first demodulated signal. A read command is extracted from the signal DS1, or the first modulation signal RF1), and the first demodulation signal (or the extracted read command DS1) is sent to the low-frequency logic circuit 230 through the first output terminal OT1. and transmit to the high frequency logic circuit 235 (S525).

The clock signal detector 228 extracts the first clock signal (CLK1) from the first carrier included in the first modulation signal (RF1) output from the low-frequency interface 212, and It is transmitted to the low-frequency logic circuit 230 (S530). At this time, the high frequency logic circuit 235 maintains an inactive state according to the second clock signal CLK2 having a low level.

The low-frequency logic circuit 230, which operates according to the first clock signal CLK1, operates according to the first demodulation signal (or the extracted read command DS1) output from the first output terminal OT1 of the demodulator 224. , reads the sensed data (DATA) stored in the shared memory device 240, for example, sensed data (DATA) stored in S460 of FIG. 7, and transmits the read sensed data (DATA) to the third part of the modulator 226. It is transmitted to the input terminal (IT3) (S535).

The modulator 226 transmits the first transmission modulation signal (TRF1) generated by modulating the sensed data (DATA) using the first load modulation to the low-frequency interface 212 and the high-frequency interface 214 through the components (OT2 and L3). ) (S540). However, even though the first transmit modulation signal TRF1 is transmitted to the high frequency interface 214 through the components OT2, L3, and HO3, the high frequency interface 214 is not operational.

The low-frequency interface 212 transmits the first transmission modulation signal (TRF1) to the first reader 130 through the first antenna (ANT1) (S545). The first mobile app (APP1) of the first reader 130 receives and processes the first transmission modulation signal (TRF1), and sends the processed signal (TEMP and/or BGV) to the display device of the first reader 130. Display (S550).

FIG. 9 is a data flow explaining a process of reading sensed data using a second terminal and the dual-band tag IC shown in FIG. 2 according to the data flow shown in FIG. 7.

1, 2, 7, and 9, the sensor controller 320 receives a detection signal (SI1 and/or SI2) detected by at least one biosensor (330 and 340) (S455) ), the detection signal (SI1 and/or SI2) is transmitted to the main control logic circuit 310 (S455).

The main control logic circuit 310 generates sensing data (DATA) corresponding to the sensing signal (SI1 and/or SI2) transmitted from the sensor controller 320, and stores the sensing data (DATA) in the shared volatile memory device 240. ), the sensed data (DATA) is directly transmitted to the low-frequency logic circuit 230 and the high-frequency logic circuit 235 (S610).

The high-frequency logic circuit 235 operating according to the second clock signal CLK2 transmits the sensing data DATA transmitted from the main control logic circuit 310 to the third input terminal IT3 of the modulator 226 ( S620).

The modulator 226 modulates the sensed data (DATA) using the second load modulation and transmits the second transmission modulation signal (TRF2) generated through the low-frequency interface 212 and the high-frequency interface 214 through the components (OT2 and L3). ) (S630). However, even if the second transmit modulation signal TRF2 is transmitted to the low frequency interface 212 through the configurations OT2, L3, and LO3, the low frequency interface 212 is not operational.

The high frequency interface 214 transmits the second transmission modulation signal (TRF2) to the second reader 150 through the second antenna (ANT2) (S640). The second mobile app (APP2) of the second reader 150 receives and processes the second transmission modulation signal (TRF2) (S650), and displays the processed signal on the display device of the second reader 150 (S660) ). For example, the second mobile app (APP2) displays temperature information (TEMP) and/or blood sugar information (BGV) corresponding to the second transmission modulation signal (TRF2) on the display device of the second terminal 150.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely illustrative, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached registration claims.

100: Biometric information processing system
110: Biometric information measurement system
130: First reader
150: 2nd reader
200: Dual-band wireless tag IC
212: low frequency interface
214: high frequency interface
220: Shared wireless analog circuit
222: regulator
224: demodulator
226: modulator
228: clock signal extractor
230: Low-frequency logic circuit
235: high frequency logic circuit
240: Shared memory device
300: Power management unit
310: main control logic circuit
320: sensor controller
330: First biosensor
340: Second biosensor

Claims (22)

a low-frequency interface that receives a first modulated signal modulated with a first carrier wave from a first wireless communication terminal and transmits a first transmission modulated signal modulated using a first load modulation to the first wireless communication terminal;
a high-frequency interface that receives a second modulated signal modulated with a second carrier wave from a second wireless communication terminal and transmits a second transmission modulated signal modulated using a second load modulation to the second wireless communication terminal;
When the first modulated signal is received from the low-frequency interface, the first modulated signal is demodulated to generate a first demodulated signal, and when the second modulated signal is received from the high-frequency interface, the second modulated signal is demodulated. a shared wireless analog circuit that generates a second demodulated signal;
a shared memory device that stores sensing data;
a low-frequency logic circuit that reads the sensed data from the shared memory device in response to the first demodulated signal and transmits it to the shared wireless analog circuit; and
A dual-band wireless tag IC including a high-frequency logic circuit that reads the sensed data from the shared memory device in response to the second demodulation signal and transmits it to the shared wireless analog circuit. The method of claim 1, wherein the shared wireless analog circuit,
Modulate the sensed data using the first load modulation to generate the first transmission modulation signal, transmit the first transmission modulation signal to the low-frequency interface, and modulate the sensed data using the second load modulation. A dual-band wireless tag IC including a modulator that generates the second transmission modulation signal and transmits the second transmission modulation signal to the high frequency interface. The method of claim 2, wherein the shared wireless analog circuit,
a demodulator for generating the first demodulated signal by demodulating the first modulated signal received through a demodulator input terminal and generating the second demodulated signal by demodulating the second modulated signal received through the demodulator input terminal; and
A dual band further comprising a clock signal extractor for extracting a first clock signal for operation of the low-frequency logic circuit from the first carrier wave and extracting a second clock signal for operation of the high-frequency logic circuit from the second carrier wave. Wireless tag IC. According to paragraph 3,
a first transmission line connecting a first output terminal of the low-frequency interface for outputting the first modulation signal, a first output terminal of the high-frequency interface for outputting the second modulation signal, and the demodulator input terminal; and
Dual further comprising a second transmission line connecting the output terminal of the modulator, the input terminal of the low-frequency interface for receiving the first transmission modulation signal, and the input terminal of the high-frequency interface for receiving the second transmission modulation signal. Band wireless tag IC. According to paragraph 3,
When only the first clock signal is extracted by the clock signal extractor, the low-frequency logic circuit is activated and the high-frequency logic circuit is deactivated,
A dual-band wireless tag IC in which the low-frequency logic circuit is deactivated and the high-frequency logic circuit is activated when only the second clock signal is extracted by the clock signal extractor. According to paragraph 3,
The low-frequency interface generates a first DC voltage using the first carrier wave,
The high frequency interface generates a second DC voltage using the second carrier wave,
The shared wireless analog circuit is,
When the first DC voltage is received through the regulator input terminal, the first DC voltage is regulated to generate an operating voltage, and when the second DC voltage is received through the regulator input terminal, the second DC voltage is regulated to generate the operating voltage. It further includes a regulator that generates,
the operating voltage is supplied to the shared wireless analog circuit, the low frequency logic circuit, the high frequency logic circuit, and the shared memory device,
The dual-band wireless tag IC is,
A first pin outputting the operating voltage;
a second pin for receiving the sensing data transmitted from the main control logic circuit and storing it in the shared memory device; and
A dual-band wireless tag IC further comprising a voltage transmission line connecting an output terminal of the low-frequency interface that outputs the first DC voltage, an output terminal of the high-frequency interface that outputs the second DC voltage, and the regulator input terminal. Dual-band wireless tag IC;
a main control logic circuit that generates an operation command according to a command output from the dual-band wireless tag IC and transmits detection data corresponding to a biometric information detection signal to the dual-band wireless tag IC;
A sensor that generates the biometric information detection signal; and
A sensor controller that controls the detection operation of the sensor according to the operation command, receives the biometric information detection signal output from the sensor, and transmits it to the main control logic circuit,
The dual-band wireless tag IC is,
a low-frequency interface that receives a first modulated signal modulated with a first carrier wave from a first wireless communication terminal and transmits a first transmission modulated signal modulated using a first load modulation to the first wireless communication terminal;
a high-frequency interface that receives a second modulated signal modulated with a second carrier wave from a second wireless communication terminal and transmits a second transmission modulated signal modulated using a second load modulation to the second wireless communication terminal;
When the first modulated signal is received from the low-frequency interface, the first modulated signal is demodulated to generate a first demodulated signal, and when the second modulated signal is received from the high-frequency interface, the second modulated signal is demodulated. a shared wireless analog circuit that generates a second demodulated signal;
a shared memory device that stores the sensed data under control of the main control logic circuit;
a low-frequency logic circuit that reads the sensed data from the shared memory device in response to the first demodulated signal and transmits it to the shared wireless analog circuit; and
A biometric information measurement system comprising a high-frequency logic circuit that reads the sensed data from the shared memory device in response to the second demodulated signal and transmits it to the shared wireless analog circuit. The method of claim 7, wherein the shared wireless analog circuit,
A first transmission modulation signal generated by modulating the sensed data using the first load modulation is transmitted to the low-frequency interface, and a second transmission modulation signal generated by modulating the sensed data using the second load modulation is transmitted. A biometric information measurement system including a modulator that transmits to the high frequency interface. The method of claim 8, wherein the shared wireless analog circuit,
a demodulator for generating the first demodulated signal by demodulating the first modulated signal received through a demodulator input terminal and generating the second demodulated signal by demodulating the second modulated signal received through the demodulator input terminal; and
Biometric information further comprising a clock signal extractor for extracting a first clock signal for operation of the low-frequency logic circuit from the first carrier wave and extracting a second clock signal for operation of the high-frequency logic circuit from the second carrier wave. Measurement system. The method of claim 9, wherein the dual-band wireless tag IC,
a first transmission line connecting a first output terminal of the low-frequency interface for outputting the first modulation signal, a first output terminal of the high-frequency interface for outputting the second modulation signal, and the demodulator input terminal; and
A biological body further comprising a second transmission line connecting an output terminal of the modulator, an input terminal of the low-frequency interface for receiving the first transmission modulation signal, and an input terminal of the high-frequency interface for receiving the second transmission modulation signal. Information measurement system. According to clause 9,
When only the first clock signal is extracted by the clock signal extractor, the low-frequency logic circuit is activated and the high-frequency logic circuit is deactivated,
When only the second clock signal is extracted by the clock signal extractor, the low-frequency logic circuit is deactivated and the high-frequency logic circuit is activated. According to clause 9,
The low-frequency interface generates a first DC voltage using the first carrier wave,
The high frequency interface generates a second DC voltage using the second carrier wave,
The shared wireless analog circuit is,
When the first DC voltage is received through the regulator input terminal, the first operating voltage is generated by regulating the first DC voltage, and when the second DC voltage is received through the regulator input terminal, the second DC voltage is regulated to generate the first operating voltage. further comprising a regulator that generates a first operating voltage and supplies the first operating voltage to the shared wireless analog circuit, the low frequency logic circuit, the high frequency logic circuit, and the shared memory device,
The dual-band wireless tag IC is,
a first pin for outputting the first operating voltage to the outside of the dual-band wireless tag IC;
a second pin for receiving the sensing data transmitted from the main control logic circuit and storing it in the shared memory device; and
A biometric information measurement system further comprising a voltage transmission line connecting an output terminal of the low-frequency interface that outputs the first DC voltage, an output terminal of the high-frequency interface that outputs the second DC voltage, and the regulator input terminal. The method of claim 12, wherein the biometric information measurement system:
Receiving the first operating voltage through the first pin, adjusting the level of the first operating voltage, and supplying the level-adjusted first operating voltage to the main control logic circuit, the sensor controller, and the sensor A biometric information measurement system further comprising a power management unit. The method of claim 13, wherein the biometric information measurement system:
Further comprising a battery generating a second operating voltage,
The power management unit,
Receive the first operating voltage and the second operating voltage, generate an operating voltage using the first operating voltage and the second operating voltage, and apply the operating voltage to the main control logic circuit, the sensor controller, and A biometric information measurement system supplied to the sensor. In clause 7,
The biometric information measurement system is inserted into a capsule, and the capsule is inserted into the body of an animal. Dual-band wireless tag IC;
a main control logic circuit that interprets commands output from the dual-band wireless tag IC, generates operation commands, and transmits detection data corresponding to biometric information detection signals to the dual-band wireless tag IC;
A sensor that generates the biometric information detection signal; and
A sensor controller that controls the detection operation of the sensor according to the operation command, receives the biometric information detection signal output from the sensor, and transmits it to the main control logic circuit,
The dual-band wireless tag IC is,
a low-frequency interface that receives a first modulation signal generated by modulating a sensor operation command into a first carrier wave;
a demodulator that receives the first modulated signal output from the low-frequency interface and demodulates it to generate a first demodulated signal;
a low-frequency logic circuit that generates the command corresponding to the first demodulated signal; and
A biometric information measurement system including a shared memory device that receives and stores the sensed data transmitted from the main control logic circuit. 17. The method of claim 16, wherein the dual-band wireless tag IC,
a high-frequency interface that receives a second modulation signal generated by modulating a read command into a second carrier wave;
a high-frequency logic circuit that reads the sensed data stored in the shared memory device according to a second demodulation signal;
Further comprising a modulator for generating a transmission modulation signal by modulating the sensed data transmitted from the high frequency logic circuit using load modulation and transmitting the transmission modulation signal to the high frequency interface,
The demodulator receives the second modulated signal output from the high frequency interface and demodulates it to generate the second demodulated signal corresponding to the read command. According to clause 17,
The first carrier wave has any frequency between 125 kHz and 134.2 kHz,
A biometric information measurement system in which the second carrier wave is 13.56Mhz. According to clause 17,
The biometric information measurement system is inserted into a capsule, and the capsule is inserted into the body of an animal,
A biometric information measurement system in which the sensor measures the animal's body temperature or blood sugar and generates the biometric information detection signal corresponding to the measurement result. In a method of measuring biometric information using a first wireless reader, a second wireless reader, and a biometric information measurement system,
The biometric information measurement system,
Dual-band wireless tag IC;
a main control logic circuit that interprets commands output from the dual-band wireless tag IC, generates operation commands, and transmits detection data corresponding to biometric information detection signals to the dual-band wireless tag IC;
A sensor that generates the biometric information detection signal; and
A sensor controller that controls the detection operation of the sensor according to the operation command, receives the biometric information detection signal output from the sensor, and transmits it to the main control logic circuit,
The method of measuring the biometric information is,
Receiving a first modulated signal generated by the low-frequency interface of the dual-band wireless tag IC modulating a sensor operation command into a first carrier wave from the first wireless reader;
A demodulator of the dual-band wireless tag IC receives the first modulated signal output from the low-frequency interface and demodulates it to generate a first demodulated signal;
generating the command corresponding to the first demodulated signal by a low-frequency logic circuit of the dual-band wireless tag IC; and
A method of measuring biometric information comprising the step of the main control logic circuit receiving the sensing data and storing it in a shared memory device of the dual-band wireless tag IC. The method of claim 20, wherein the method of measuring the biometric information includes:
Receiving a second modulated signal generated by the high-frequency interface of the dual-band wireless tag IC modulating a read command into a second carrier wave from the second wireless reader;
the demodulator receiving and demodulating the second modulation signal output from the high frequency interface to generate a second demodulation signal corresponding to the read command;
reading the sensed data stored in the shared memory device according to the second demodulation signal by a high-frequency logic circuit of the dual-band wireless tag IC;
A modulator of the dual-band wireless tag IC modulates the sensed data transmitted from the high-frequency logic circuit using load modulation to generate a transmission modulation signal and transmitting the transmission modulation signal to the high-frequency interface; and
A method of measuring biometric information further comprising transmitting, by the high frequency interface, the transmission modulated signal to the second wireless reader. According to clause 21,
The biometric information measurement system is inserted into a capsule, and the capsule is inserted into the body of an animal,
The second wireless reader is a smart phone,
The read command is generated by a mobile app running on the second wireless reader,
A method of measuring biometric information in which the mobile app displays the body temperature or blood sugar level of the animal corresponding to the transmission modulation signal on the display device of the smartphone.