Intelligent Rfid System For Low Powered Reader-Tag Communication and Method Thereof
First Claim
1. An intelligent Radio Frequency Identification (RFID) system for low-powered reader-tag communication, the RFID system including an RFID reader and one or more passive tags, comprising:
- an RF shower system for radiating an electromagnetic wave in a predetermined frequency band to activate the passive tags, the RF shower system including predetermined communication means to read information from a plurality of passive tags existing in a radiation zone having a predetermined size and to provide stored tag information when a request is received from the RFID reader.
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Abstract
The present invention relates, in general, to a Radio Frequency Identification (RFID) system for reading or recording RFID tag information using radio frequencies and, more particularly, to an intelligent RFID system for low-powered reader-tag communication, which includes an RF shower system (370) that radiates a high power electromagnetic wave in a high frequency band to activate the passive tags having no batteries and that has predetermined communication means for reading information from a plurality of passive tags existing in a radiation zone having a predetermined size, storing the read tag information, and providing the stored tag information when a request is received from an RFID reader (310).
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Citations
15 Claims
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1. An intelligent Radio Frequency Identification (RFID) system for low-powered reader-tag communication, the RFID system including an RFID reader and one or more passive tags, comprising:
an RF shower system for radiating an electromagnetic wave in a predetermined frequency band to activate the passive tags, the RF shower system including predetermined communication means to read information from a plurality of passive tags existing in a radiation zone having a predetermined size and to provide stored tag information when a request is received from the RFID reader. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An intelligent Radio Frequency Identification (RFID) system for low-powered reader-tag communication, comprising:
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an RFID reader; one or more tags; and an RF shower system for radiating an electromagnetic wave in a predetermined frequency band to activate the passive tags, the RF shower system including predetermined communication means to read information from a plurality of passive tags existing in a radiation zone having a predetermined size and to provide stored tag information when a request is received from the RFID reader, wherein the RF shower system reads information about a plurality of passive tags existing outside of a range of communication with the RFID while communicating with a plurality of passive tags existing in a wide range using a high frequency wave having higher power than that of an RF signal radiated by the RFID reader. - View Dependent Claims (11)
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12. An intelligent Radio Frequency Identification (RFID) method for low-powered reader-tag communication, the RFID method being performed using an intelligent RFID system for low-powered reader-tag communication, the RFID system including an RFID reader, one or more passive tags, and an RF shower system radiating an electromagnetic wave in a high frequency band to activate the passive tags, and having communication means capable of communicating with both the RFID reader and the passive tags, the RFID method comprising:
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an activation step of the RF shower system radiating a high frequency wave in a predetermined frequency band, transmitting power to one or more passive tags existing in a radiation zone thereof, and then activating the passive tags; an RF shower system interrogation step of the RF shower system transmitting an interrogation signal to the plurality of activated passive tags existing in the radiation zone, using the high frequency wave in a predetermined frequency band; and a passive tag response step of the plurality of passive tags, existing in the radiation zone of the RF shower system, performing backscattered modulation on the high frequency wave received from the RF shower system, thus transmitting a response signal. - View Dependent Claims (13, 14, 15)
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Specification