RFID TAG WITH LED AND RF IDENTIFICATION MANAGING METHOD USING THE SAME

• US 20100171586A1
• Filed: 07/18/2007
• Published: 07/08/2010
• Est. Priority Date: 09/28/2006
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: PARK, Ji-Man, JUN, Sung-Ik
• Granted Patent: US 8,610,565 B2
• Time in Patent Office: Days
• US Class Current: 340/5.100
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• CPC Class Codes: G06K 19/0717 the sensor being capable of sensing environmental conditions such as temperature history or pressure
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs

Abstract

A RFID tag having a LED is provided. The RFID tag includes an antenna, a RF processor, a controller, a memory, at least one of LEDs, and a LED switching unit. The RF processor receives and transmits a wireless signal through the antenna, and modulates and demodulates transmitted and received signal and data. The controller analyzes a received data outputted from the RF signal processor and generally controls the RFID tag. The memory stores the received data in response to the controller. The LED switching unit turns on/off at least one of the LEDs in response to the controller.

Claims

1. A RFID (radio frequency identification) tag comprising:

an antenna;

a RF (radio frequency) processor for receiving and transmitting a RF signal through the antenna, and modulating and demodulating the RF signal and transmitted and received data;

a controller for analyzing a received data outputted from the RF signal processor and controlling overall operation of the RFID tag;

a memory for storing the received data according to control of the controller;

at least one of LEDs (light emitting diode) for being turned on and off; and

a LED switching unit for turning on/off at least one of the LEDs according to control of the controller.

2. The RFID tag according to claim 1, further comprising:

at least one of sensors for detecting states of management subjects and various of peripheral environment; and

a sensing signal processing unit for transforming a sensing signal outputted from at least one of the sensors to a digital value to be processable in the controller, and providing the digital value to the controller.

3. The RFID tag according to claim 1, wherein at least one of the LEDs emits light in different colors.

4. The RFID tag according to claim 1, wherein at least one of the LEDs emits light in more than two colors.

5. The RFID tag according to claim 1, wherein the data stored in the memory is information related to the management subject of a corresponding RFID tag.

6. The RFID tag according to claim 2, wherein the data stored in the memory include at least one of information related to the management subject of a corresponding RFID tag and sensor reference values which are feature sensing values of each sensor.

7. The RFID tag according to claim 2, wherein if the sensing values reach a predetermined sensing value, at least one of the sensors output a fixed sensing value although states of sensing subjects vary and does not function as a sensor.

8. The RFID tag according to claim 5, wherein the controller stores data at the memory, which is transferred after receiving an issuing request from a reader, and the controller compares data transferred from a reader with the data stored in the memory according to a operating request from a reader and controls the LED to be turned on/off according to the comparison result.

9. The RFID tag according to claim 6, wherein controller stores a sensor reference value at the memory, which is transferred after receiving an issuing request from a reader, compares the sensor reference value with current sensing values outputted form at least one of the sensor according to a operating request from a reader, and controls the LED to be turned on/off according to the comparison result.

10. The RFID tag according to claim 5, wherein the controller transmits data or a sensor reference value, which are stored in the memory, to a reader according to a request from a reader, and controls the LED to be turned on/off according to a request from the reader.

15. The RFID tag according to claim 6, wherein the controller transmits data or a sensor reference value, which are stored in the memory, to a reader according to a request from a reader, and controls the LED to be turned on/off according to a request from the reader.

11. A wireless recognition and management method using a RFID (radio frequency identification) tag having a LED (light emitting diode), the method comprising:

transmitting an issuing request signal to the RFID tag through a reader;

transmitting data having management information about a subject where a corresponding RFID tag is attached to when a response for the issuing request signal is received from a RFED tag, requesting the RFID tag to store the data, and receiving a response thereof; and

transmitting a predetermined condition to the RFID tag storing the data when a subject having the predetermined condition is required to identify, and requesting the RFID tag to compare and control a LED of the RFID tag according to the condition.

12. A wireless recognition and management method using a RFID (radio frequency identification) tag having a LED (light emitting diode), the method comprising:

transmitting an issuing request signal to the RFID tag through a reader;

transmitting data having information about a subject where a corresponding RFTD tag is attached to when receiving a response for the issuing request from a RFTD tag, requesting the RFID tag to store the transmitted data, and receiving a response thereof;

requesting the RFID tag to transmit stored data when a subject having a predetermined condition is requested;

determining whether a LED is turned on or off by comparing the predetermined condition with data received from a RFID tag according to the request; and

transmitting a request signal to turn on a LED corresponding to the determination result.

13. A method of wireless recognition and management method using a RFID (radio frequency identification) tag having at leas one of LEDs (light emitting diode), the method comprising;

transmitting an issuing request signal to the RFID tag through a reader;

transmitting a sensor reference value related to a condition to managing a subject where a corresponding RFID tag is attached to when a response for the issuing request is received from the RFID tag, requesting the RFID tag to store the transmitted sensor reference value, and receiving a response thereof; and

transmitting a request signal to compare a current sensor value and the stored sensor reference value and turn on a LED by the RFTD tag when a management subject is required to identify.

14. A method of wireless recognition and management method using a RFID (radio frequency identification) tag having at leas one of LEDs (light emitting diode), the method comprising;

transmitting an issuing request signal to the RFID tag through a reader;

transmitting a sensor reference value related to a condition to manage a subject where a corresponding tag is attached to when a response for the issuing request is received, requesting the RFID tag to store the transmitted sensor reference value, and receiving a response thereof;

receiving a sensor reference value and a current sensing value by requesting to the RFID tag when a management subject is required to identify;

comparing the received sensor reference value and current sensing value, and determining whether a LED of a corresponding RFTD tag is turned on or off; and

transmitting a request to a corresponding RFTD tag to turn on a LED according to the determination result.