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Registered RFID INTERROGATOR RETRANSMITTING COMMAND DEPENDING ON COLLISION SITUATION AND CONTROL METHOD THEREOF
이미지 확대
RFID INTERROGATOR RETRANSMITTING COMMAND DEPENDING ON COLLISION SITUATION AND CONTROL METHOD THEREOF
- Inventors
- Chan-Won Park, Chae Jong- Suk, Cheol Sig Pyo, Choi Gil Young, Oh Se Won, David Tschisch, Josef Preishub
- Application No.
- 12921984 (2009.03.12)
- Publication No.
- 20110006885 (2011.01.13)
- Registration No.
- 8779899 (2014.07.15)
- Country
- UNITED STATES
- Project Code
- 08MC4100, Development of Next Generation RFID Technology for Item Level Applications, Chae Jong- Suk
- Abstract
- As an RFID interrogator transmitting a command depending on a collision situation and a control method thereof, the RFID interrogator includes a collision diagnosis unit that analyzes data of a received signal received during a receive time in correspondence with a transmitted signal from an RF communication unit that can transmit and receive signal to and from one or more tag, verifies whether or not a collision occurs in the received signal, and diagnoses a collision type depending on an analysis result of the data of the received signal; and a collision resolution unit that can retransmit a command to the tag through the RF communication unit depending on the collision situation on the basis of whether or not occurrence of the collision or not and the collision type that are received from the collision diagnosis unit.
- KSP Keywords
- Collision Type, Collision diagnosis, RF Communication, collision resolution, collision situation, control method