• Journal of the Korea Safety Management & Science
• /
• v.12 no.2
• /
• pp.167-172
• /
• 2010

EPCIS(EPC Information Service) system is a core component of EPCglobal Architecture Framework offering information of the freights, the time of awareness and the location of awareness on the EPCglobal Network. EPCIS Repository continuously stores and manages mass EPCIS Event input data from a great number of RFID devices simultaneously. The Hybrid DBMS can deal efficiently mass necessary data. This study suggest the plan which can efficiently manage EPCIS Repository using Hybrid DBMS. We offer three schema and stores EPCIS Event data to Altibase DB that can efficiently manage EPCIS Repository using Hybrid DBMS and compare the performance about three schema through simulations.

• Proceedings of the Safety Management and Science Conference
• /
• 2010.04a
• /
• pp.167-172
• /
• 2010

EPCIS(EPC Information Service)시스템은 EPC기반의 정보교환을 목표로 EPC global Network 상에서 RFID 태그에 기록된 화물의 EPC데이터, 인식시점, 인식장소 등의 정보를 제공하는 EPCglobal Architecture Framework의 구성요소 중 핵심부분이라고 할 수 있다. 본 논문에서는 EPCIS 시스템의 구성요소 중 동시에 수많은 RFID 단말기로부터 입력되는 대용량의 EPCIS Event 데이터를 지속적으로 저장하고 관리하는 EPCIS Repository를 효율적으로 관리하기 위하여 고성능이 필요한 데이터와 대용량이 필요한 데이터를 모두 처리할 수 있는 Hybrid DBMS를 적용하여 EPCIS Repository를 효율적으로 관리할 수 있는 방안을 제시하고자 한다.

• Proceedings of the Safety Management and Science Conference
• /
• 2010.11a
• /
• pp.349-355
• /
• 2010

EPCIS(EPC Information Services) system is a core component of EPCglobal Architecture Framework offering information of the freights, the time of awareness and the location of awareness on the EPCglobal Network. The role of EPCIS is to exchange information based on EPC. There are four kinds of event data which are object event data, aggregation event data, quantity event data, and transaction event data. These EPCIS events data are stored and managed in EPCIS repository. This paper leads to separate a in-out data overload of integrated EPCIS event and suggests the method to effectively manage EPCIS repository for exchanging data smoothly. In order to verify a effectiveness, we measure the performance of the system using a simple testing simulation by comparing existing method and suggested method.

• Journal of the Korea Safety Management & Science
• /
• v.12 no.4
• /
• pp.169-174
• /
• 2010

EPCIS(EPC Information Services) system is a core component of EPCglobal Architecture Framework offering information of the freights, the time of awareness and the location of awareness on the EPCglobal Network. The role of EPCIS is to exchange information based on EPC. There are four kinds of event data which are object event data, aggregation event data, quantity event data, and transaction event data. These EPCIS events data are stored and managed in EPCIS repository. This paper deals with the method which diversifies the data flow load of intensive EPCIS events and effectively manages EPCIS repository for exchanging data smoothly. In order to verify a effectiveness, we measure the performance of the system using a simulation by comparing the existing method with the suggested method.

• Journal of the Korea Society of Computer and Information
• /
• v.15 no.12
• /
• pp.151-162
• /
• 2010

In order to build up the ubiquitous computer environment, there are many researches on automatic identification, sensor networks, and home networks etc. EPCIS (EPC Information Services), which is proposed by EPCglobal, is a standard on the repository managing tag data that is needed to develop RFID application system. In this paper, the EPCIS repository is designed and implemented. It is able to search the object dependent upon general object recognition and environment information variation. And sensor data, which is also massive data and is changed with position, is integrated into RFID data in the system. By doing so, it is possible to do the convergence managements of object recognition with variations of USN (Ubiquitous Sensor Network) environment.

• Journal of the Korea Safety Management & Science
• /
• v.11 no.2
• /
• pp.137-144
• /
• 2009

EPCIS(EPC Information Services) system is a core component of EPCglobal Architecture Framework offering information of the freights, the time of awareness and the location of awareness on the EPCglobal Network. The role of EPCIS is to exchange information based on EPC. There are four kinds of event data which are object event data, aggregation event data, quantity event data, and transaction event data. These EPCIS events data are stored and managed in EPCIS repository. This study suggest the quantitative modeling about total number of EPCIS event data under the assumption to aware the RFID tags of items, cases(boxes), vehicles(carriers, forklifts, auto guided vehicles, rolltainers) at a time on the reading points. We also estimate the number of created EPCIS event data by the suggested quantitative modeling under scenario of process in the integrated logistics center based on RFID system And this study compare the TO-BE model with the AS-IS model about the total sizes of created EPCIS event data using the simulation, in which we suggested the TO-BE model as the development of the repository by skipping the overlapped records.

• Journal of the Korea Society of Computer and Information
• /
• v.17 no.1
• /
• pp.193-202
• /
• 2012

RFID tag awareness information and sensor data continuously change, and are categorized with the position. They are able to similar data in the side, called massive data to change in time. If two data are managed together, a convergence process of object awareness along change of environment is possible. If RFID middleware and EPCIS repository realized the integrated system, it is usable with the functions of middleware and repository at the same time. The real-time awareness information retrieval is possible without process, getting information from another middleware. In this paper, it is able to continuously read information from RFID reader and sensor equipment and store to database in order to make general object awareness and an object retrieval dependent on an environmental information change possible by real time. ALE-compliant middleware and EPCIS repository proposing for standards at EPCglobal is designed and implemented to be able to deal with RFID and sensor data to bases on the collected data.

• Journal of the Korea Safety Management & Science
• /
• v.11 no.4
• /
• pp.221-228
• /
• 2009

Electronic Product Code Information Services(EPCIS) is an EPCglobal standard for sharing EPC related information between trading partners. EPCIS provides a new important capability to improve efficiency, security, and visibility in the global supply chain. EPCIS data are classified into two categories, master data (static data) and event data (dynamic data). Master data are static and constant for objects, for example, the name and code of product and the manufacturer, etc. Event data refer to things that happen dynamically with the passing of time, for example, the date of manufacture, the period and the route of circulation, the date of storage in warehouse, etc. There are four kinds of event data which are Object Event data, Aggregation Event data, Quantity Event data, and Transaction Event data. This thesis we propose an event-based data model for EPC Information Service repository in RFID based integrated logistics center. This data model can reduce the data volume and handle well all kinds of entity relationships. From the point of aspect of data quantity, we propose a formula model that can explain how many EPCIS events data are created per one business activity. Using this formula model, we can estimate the size of EPCIS events data of RFID based integrated logistics center for a one day under the assumed scenario.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2012.11a
• /
• pp.1136-1139
• /
• 2012

본 연구에서는 EPCIS(전자상품코드 정보 서비스) 시스템의 요구사항인 추상화, 고성능, 확장성, 상호 운용성을 기반으로 EPCIS 시스템의 구조를 설계하고 구현한다. EPCIS 시스템의 추상화를 위해 기존에 존재하는 다양한 데이터 베이스 시스템과 상호 운용을 위한 공통 인터페이스를 구현하고 내부적으로 확장 질의 인터페이스, 공통 질의 언어를 가진다. 연속 질의 처리 시간을 감소 시키고 중복된 결과를 효과적으로 처리하기 위한 연속 질의 처리 모듈을 구현한다. 또한 RFID(전자 태그)의 이력 추적 질의의 고성능을 지원하기 위해 RFID 환경에 최적화된 색인 기술과 질의 처리를 위한 구성 요소(Component)를 추가하여 EPCIS 시스템의 고성능 질의 처리를 가능하게 한다. 또한 확장성을 위해 저장소(EPCIS Repository) 관리자를 구현하여 비즈니스 이벤트의 메타 데이터의 스키마를 정의하여 새로운 종류의 비즈니스 이벤트를 쉽게 등록하고 사용할 수 있도록 하였다. 또한 기업의 응용 시스템과 협력 기업간에 정보 교환을 위해서 EPC 글로벌에서 제시하는 웹 서비스를 지원하며 표준 데이터 형식인 확장성 생성 언어(XML)를 사용한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2008.05a
• /
• pp.718-720
• /
• 2008

In this paper, the study focus on continuous query in EPC Information Services(EPCIS) middleware which is a component of RFID system. We can consider EPCIS as a data stream system with a repository. In our work continuous query is implemented in two query execution model. One is standing query model another is traditional query execution model in which continuous query run over database periodically. Furthermore a balance strategy is presented. It is used to determine which continuous query implementation model is suitable for the query. Finally we conclude our work and issue some research topic for future work.