IASW2005 Park

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					RFID-based Logistics Information
Service with Semantic Web

   DaeWon Park and HyukChul Kwon

   2005.08.27
 Contents
 RFID based Logistics Environment
     – Logistics Environment
     – RFID technologies
     – Logistics Environment applying RFID technology
 Logistics Information Service
     – RFID-based Logistics Information
     – Logistics Information Service
 Semantic Web in Logistics Information Service
 Summary
 Future Work




Pusan National University                               Page 2
 Research Goal
 Main Goal
     – Effective management logistics information and retrieval
     – Globally connected logistics information service using Semantic Web
        • Support data integration
        • Support Interoperability



 Goal of current step
     – Managing different types of data in a system
     – Information retrieving in the system




Pusan National University                                             Page 3
 RFID-based Logistics Environment
 Logistics Environment
     – Physical flow of products
     – Information (about products, shipment, business transaction, etc)




     Manufacturer                              Shop


                                                                    Shipment


   Products



                     Packaging
                                    Shipment                    Retailer

Pusan National University                                              Page 4
 RFID-based Logistics Environment
 Case : Baggage transit (airplane)
     – Attaching barcode to the baggage
     – And then ?



                                          Request Information ?




             Seoul                 Paris                      Helsinki
             Send baggage          Transfer                   Not Arrived
            (Code:KE3xxxx)    (1 baggage transit)            (Where’s my
                                                            baggage?/Lost?)


Pusan National University                                               Page 5
 RFID-based Logistics Environment
 Management Logistics
     – Managing physical flow
        • Manage and control movement of products
        • Movement of products
            – From manufacturer to manufacturer distribution center
            – From manufacturer distribution center to retail distribution
              center
            – etc
        • Logistics companies are looking for lowest-cost or fastest
          path/method
     – Managing logistics information
        • Information of products, and movements of products
            – Ex: “Is the product valid for sale?”
            – Ex: “Where the product is now?”
            – Ex: “When the products arrive at the destination?”

Pusan National University                                              Page 6
 RFID-based Logistics Environment
 RFID technology
     – RFID (Radio Frequency Identification)
        • Means of automatically identifying objects
        • Alternative technologies
            – Barcodes
            – Magnetic strips

     – Being applied to many areas
        • Ex: SCM(Supply Chain Management)




Pusan National University                              Page 7
 RFID-based Logistics Environment
 EPC Network (typical research on using RFID technology)
     – Auto ID center
        • Connecting information and physical flows
        • Automatic, reliable transfer and update of information based on
          physical operations

     – EPCglobal
        • Standards Development
        • Implementation Support (Commercialization)

     – EPC (Electronic Product Code)
        • Unique ID
            – Header : Company : Object Class : Serial Number
        • Under processing of standardization


Pusan National University                                            Page 8
 RFID-based Logistics Environment
                                                                  Physical Flow

                                                                  Information



                      Shipment                                  Retail Store
                                          Retail Distribution
                                                Center

        Product

                                              Reader

                    RFID Tag




 Manufacture
                                   Information Services
            Product
          Specification


                            “Managing Logistics Information”    Application
Pusan National University                                                  Page 9
 Elements of RFID-based Logistics System
 RFID & RFID reader
 RFID Middleware
     – Application Level Event : Filtering Event
 Information Service
     – Manage EPC-related data & product data
                                                       Application
 Discovery Service of Information Service
     – Handle Which information services
       have observation data of a product
 Naming Service                                               ONS
     – Provide location of Products’ Information



                                                         Discovery
          Reader                         Information      Service
                            ALE
                                           Service
Pusan National University                                            Page 10
 RFID-based Logistics Information Service
 Logistics Information




            Observation Data                Attribute Data



                            Logistics Information


              Containment Data             Transaction Data



Pusan National University                                     Page 11
 RFID-based Logistics Information Service
 Logistics Information
     – Observation data
        • RFID sensed data by RFID reader
        • Time-stamped data
        • { EPC, Sensed-Location, Sensed-Time } + { additional info }

     – Attribute data
        • Information of product (instance level)
             – Information of each product
        • Information of product type (class level)
             – Information of a product model




Pusan National University                                               Page 12
 RFID-based Logistics Information Service
 Logistics Information (Cont.)
     – Containment data
        • Information of Packaging
            – Ex: 10 cellular phones are packed in a box
        • Relation of container and contents
            – Container loads products without data conflict

     – Transaction data
         • Business transaction
             – order, shipment, delivery, etc
             – Information Relation of business transaction and products




Pusan National University                                             Page 13
 RFID-based Logistics Information Service
 Logistics Information Service
        – Manage and retrieve logistics information

    Service Interface
                                                              Message Module                                          Service
                                                                                                                       Layer
                                                              Security Module
    Tools
    Service Management
    Logistics Information




                            Service         XML Utility                              Ontology
                            Module
                            Manager
                              Method                                                                                   Data
                              Manager       Attribute Data       Containment     Transaction Data   Sensed Data       Handling
                                            Handling Module      Data Handling   Handling           Handling Moudle    Layer
                              Method                             Module          Module
                             Repository


                                                                                                                        Data
                            Repository Acess Module                                                                    Access
                                                                                                                        Layer



    Repository                                                                                                        Repository
                                                                                                                        Layer



Pusan National University                                                                                             Page 14
 Semantic Web in Information Service
 Define Ontology for Information Service
     – Ex: EPC, time, attribute, value,,,
 Representation of logistics information
     – Using Semantic Web
        • For effective data sharing information with various applications
            – Data Integration
            – Consistency of data
        <rdf:RDF
                  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
                  xmlns:epc="http://durumi.cs.pusan.ac.kr/ontology/epc#"
                  xmlns:dc="http://purl.org/dc/elements/1.1/">
        <epc:RFID_SensedData>
                  <epc:ProductID>urn:epc:id:sgtin:15025.31.110</epc:ProductID>
                  <epc:ReadDataTime>2005-06-10 11:34:50</epc:ReadDataTime>
                  <epc:ReaderID>rd345612</epc:ReaderID>
                  <epc:ReaderLocation>Jang-jeon, Busan</epc:ReaderLocation>
                  <epc:ReaderType>Normal</epc:ReaderType>
        </epc:RFID_SensedData>
        </rdf:RDF>

Pusan National University                                                        Page 15
 Semantic Web in Information Service
 Type Conversion
     – Time
        • Local time  Standard time (G.M.T.)
     – Temperature
        • Fahrenheit  Celsius
     – Unit
        • Length, Weight, Volume, etc
     – Etc

                                                Time(Korea)
                                                = G.M.T + 9hours



                    Time(G.M.T)

                                           Time(Finland)
                                           = G.M.T +3hours
Pusan National University                                          Page 16
 Semantic Web in Information Service
 Data Constraint Check
     – Type Checking
     – Validity of product in certain condition

                                                  Temperature : 10~25

                                                                 Container




                                                Temperature : 5 ~ 20

                                     EPC Code                    Product      Valid Temperature
                            01.203D2A.916E8B.8719BAE03A        Electronics         12 ~ 30
                            01.203D2A.916E8B.8719BAE03B            Disc            10 ~ 25
                            01.203D2A.916E8B.8719BAE03C          Clothes           5 ~ 20
                            01.203D2A.916E8B.8719BAE03D           Snack            0 ~ 15

                                                                             12 ~ 15 Ok!

Pusan National University                                                                    Page 17
 Semantic Web in Information Service
 Data Constraint Check (Cont’)
     – Containment Data
        • For instance
            – Container CA
                » Contains product P1 and product P2
            – Product P1
                » Food-stuff with moisture
            – Product P2
                » Electronics
                » Cannot be loaded with something moisture

                => P1 and P2 cannot be in the same container




Pusan National University                                      Page 18
 Semantic Web in Information Service
 Containment Data Constraint Check
                                                                     <cont:ContainerID>urn:epc:id:sgtin:12825.87.485</cont:ContainerID>
                                                                     <cont:OriginatedCountry>ko</cont:OriginatedCountry>
                                                                     <cont:Property>
                                                                              <cont:Use>Black</cont:Use>
                                                                                       <rdf:Alt>
                                                                                                 <rdf:li rdf:resource="FoodStuffs"/>
                                                                                                 <rdf:li rdf:resource="Chemicals"/>
                                                                                       </rdf:Alt>
                                                                              <cont:Dimension>
                                                                                       ...
                Container{urn:epc:id:sgtin:15025.87.485}                      </cont:Dimension>
                                                                     </cont:Property>

        <epc:ContainmentData>
               <epc:ContainerID>urn:epc:id:sgtin:12825.87.485</epc:ContainerID>

                <epc:ProductID>urn:epc:id:sgtin:15025.31.110</epc:ProductID>
                <epc:ContainRelation>packing</epc:ContainRelation>
                <dc:Date>2005-06-09 08:10:50</dc:Date>                                                        Constraint
        </epc:ContainmentData>
                                                                                                               Conflict
                      Product                 Product                 Product
                  {urn:epc:id:sgtin:      {urn:epc:id:sgtin:      {urn:epc:id:sgtin:
                   15025.31.110}           15025.31.111}           15025.31.112}

                                              <epc:Attribute>
                                                       <epc:ProductID>urn:epc:id:sgtin:15025.31.110</epc:ProductID>
                                                       <epc:ProductName>SPH-V6900</epc:ProductName>
                                                       <epc:OriginatedCountry>ko</epc:OriginatedCountry>
                                                       <epc:ClassIdentifier>unspsc:43191501</epc:ClassIdentifier>
                                                       <epc:CommodityName>Mobile Phone</epc:CommodityName>
                                                       <epc:BasisPrice Pricetype="dollar">60,000</epc:BasisPrice>
                                              </epc:Attribute>



Pusan National University                                                                                                                 Page 19
 Summary
 Applying Semantic Web to logistics information service
      – For interoperability with applications
      – For data integration
      – Consistency


 Developing Ontology for logistics information service
      – Representing logistics information using that ontology
         • Ease to expand
         • Data type checking and conversion
      – Constraint Checking
         • Containment data, attribute data




Pusan National University                                        Page 20
 Future work
 Development Information Service System
      – Implementation of information service
      – Globally connected information service


 Inference of logistics information
      – Set relationship between logistics information
      – Developing inference engine




Pusan National University                                Page 21
                            Thank you!

                                DaeWon Park
                            bluepepe@pusan.ac.kr




Pusan National University                          Page 22

				
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