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Bridging to CE Devices across IP Domains: 

Bridging to CE Devices across IP Domains Mayuko Tanaka Hitachi, Ltd. Digital Home-network Forum

Slide2: 

Agenda What is Digital Home-network Forum (DHF) Home Networking Service Images Home Network Architecture Review　　 DHF Home Networking Model Summary & Discussion

Digital Home-network Forum (DHF): 

Digital Home-network Forum (DHF) Mission Promote and Accelerate Home Networking Realize Advanced Information and Communication Systems in the Home Technical development, Standardization, and Diffusion Organization Established in 1999 as a Nongovernmental Organization Joined by Over 65 Companies Scope of DHF Study From Physical Layer to Application Layer

Digital Home-network Forum (cont): 

Digital Home-network Forum (cont) Field Trial Working Group Studying Home-networking Service Images Propose Home-network Interoperability Architecture Specifications Verify Proposed Specifications by Practical Field Tests

Service image 1： Unified Control: 

Service image 1： Unified Control HGW Internet Services Site Mobile Controller Controller Common Interface Directory Control

Service image 2：Community-network: 

Service image 2：Community-network Community-network Internet Manual Monitoring Manual Monitoring Manual Monitoring

Service image 3：Virtual Home: 

Service image 3：Virtual Home HGW HGW Internet HGW Parents House Child House Grandchild House

Current Home Network Architecture: 

Current Home Network Architecture Proprietary Domain IP Domain IP protocol Proprietary Protocol STB Digital AV Plane DVD D-TV D-VHS PC PC Plane IC Audio Printer DVC Controller Home Appliance Plane Microwave Oven Air conditioner Monitor Camera Refrigerator HGW PC No Common Access Method nor No Interoperability between these Domains

Features of DHF Home Networking Model: 

Features of DHF Home Networking Model Seamless access between IP domain and proprietary domains No change of the existing CE devices in the proprietary domains Common commands and common directory schemes for unified access Common protocol and secure access for inside and outside home

Features of DHF Home Networking Model (cont): 

Features of DHF Home Networking Model (cont) IEEE 1394 ECHONET IP Domain DGW PC Plane DGW DGW Controller HGW Seamless Access Common Command and Common Protocol Secure Access Common Directory Internet

Overview of Common Command: 

Overview of Common Command Providing common command interface to IP domain for accessing proprietary domains Using Internet standards, SOAP/HTTP/TCP-IP, for the communication protocols Two types of Command Get Directory Information Device Control Common format of the directory information over different type of domains XML Document and XML tag definitions

Common Command Format: 

Common Command Format Base Format: SOAP message Command Examples Get Directory Information getTargetList: Get home device list under DGW getTargetInfo: Get detail information of the device function getFunctionInfo: Get detail information of the function 　　parameter Device Control controlRequest: Request device control statusRequest: Request device status

Domain Gateway Architecture: 

Domain Gateway Architecture Controller Domain Gateway Proprietary Domain Device Device Information Client Device Control Client Device Information Services Device Control Services Directory Information Common Command Domain Proprietary Protocol Common Protocol Domain Proprietary Command Information Data Creation Protocol Converter Common Format

Home Gateway Architecture: 

Home Gateway Architecture Device Information Services Proxy Services Home Gateway Directory Information Domain Gateway Proprietary Domain Device Information Services/Client Device Control Services Directory Information Device Information Services/Client Device Control Services Directory Information Controller Outside Home Controller Control Control Sync directory information Common Protocol Inside Home Outside Home Get directory information Get directory information

Example 1: 

Example 1 DGW "A" DGW "B" Controller Proprietary Domain Devices Common Command Directory Information Update in Proprietary Domain Setp1: Device List Request Device List Response (Common format) <?xml version='1.0' encoding='UTF-8'?> <deviceList> <device id='0'> <hc_id> xxx.yyy.zzz.uuu </hc_id>　 　　<device_name>aircon</device_name> 　　<service_name>airconditioner1</service_name> </device> <device id=‘1'> <hc_id> xxx.yyy.zzz.uuu </hc_id> Ste2: Device Function List Request Directory Information

Example 2: 

Example 2 DGW "A" DGW "B" Common Command DGW conversion Address into proprietary domain address Common command into proprietary domain command ECHONET message AV/C message

Example 3: 

Example 3 Panel 1: Select Device Panel 2: function select/control Controller Domain Gateway Proprietary Domain Get Directory Information Control/Get Device Status

Summary: 

Summary The key to the future home-network will be the interoperability between IP domain and proprietary domains DHF proposes home-networking architecture for the seamless access Domain gateways for connecting IP domain and proprietary domains Home gateway for connecting inside and outside home Define commons commands and common directory information format