Abstract:
PURPOSE: A tree based tag recognition method in an RFID system is provided to reduce the number of queries for identification of a target tag based on tag information in environment which a reader previously recognizes the whole tag information. CONSTITUTION: A reader receives information of the whole recognition tag including a target tag(S400). The information of the whole recognition tag is determined as a candidate set of an identification target tag(S402). An effective bit reducing the number of queries is selected in the candidate set of the identification target tag(S404). The queries are transmitted to the target tag by using the effective bit(S406). Responses about the queries are received from the target tag(S410). The target tag is identified by analyzing the responses about the queries(S412). [Reference numerals] (AA) Start; (BB,DD,GG) Yes; (CC,EE,FF) No; (HH) Return; (S400) Whole tag information input; (S402) The candidate of an identification target tag is determined; (S404) Selecting the effective bit; (S406) Performing the queries with the target tag using the effective bit; (S408) Collision?; (S410) The single tag responds?; (S412) Identifying the tag; (S414) Identifying all target tags?
Abstract:
PURPOSE: A method, apparatus, and system for integrating a zigbee network and an EPC(Electronic Product Code) global network and storage medium therefor are provided to connect to a zigbee apparatus and to share sensing information by extending the standard of the EPC global network. CONSTITUTION: A zigbee base station includes an EPC conversion table(160). The zigbee base station converts a zigbee address for each sensor node between a zigbee network and an EPC global network into EPC using the EPC conversion table. The zigbee base station converts the EPC into the zigbee address using the EPC conversion table. An EPC field records the EPC respectively allocated to the sensor node connected to the EPC global network.
Abstract:
지그비와 EPC 글로벌 네트워크 통합 방법, 장치 및 시스템, 그리고 이를 위한 저장 매체를 공개한다. 본 발명은 지그비와 EPC 글로벌 네트워크 사이에 연결 매개체로서 EPC 변환 테이블을 구비하는 지그비 기지국을 구비하고, 지그비 기지국은 지그비에 접속하는 센서 노드에 EPC를 부여하여 센서 노드가 EPC 글로벌 네트워크에서도 식별 될 수 있도록 하여 지그비와 EPC 글로벌 네트워크를 통합한다. 또한 EPC 글로벌 네트워크의 로우 레벨 리더 프로토콜의 기능을 확장하고, 지그비 기지국 내에 센싱 노드에 대한 가상 메모리 영역을 할당하여, EPC 글로벌 네트워크에서 센싱 노드를 제어 할 수 있도록 한다.