22-02-2013, 12:32 PM
HAVi Home Audio Video Interoperability An Overview on State of Art
HAVi Home.docx (Size: 183.92 KB / Downloads: 48)
ABSTRACT
Eight major consumer electronics manufacturers have come up with an open standard enabling home entertainment devices to communicate intelligently with each other. The HAVi (Home Audio Video Interoperability) standard promises to bring true platform independent interoperability to consumer devices using high bandwidth IEEE 1394 (FireWire) as the connecting medium. This paper studies the HAVi standard and what it has to offer to consumers.
INTRODUCTION
HAVi standard promises to be future proof by maintaining current functionality while making it easy to upgrade and add new capabilities. Non-HAVi devices can also be connected to the network if at least one of the HAVi devices supports the interface the legacy device provides.
HAVI ARCHITECTURE
The HAVi architecture can be divided into several different layers and Basic services provided by the system, include:
• Automatic discovery or devices added or removed from the network
• Addressing scheme and message-transfer service
• Lookup service for discovering resources
• Posting and receiving local or remote events
• Automatic installation and configuration of DCMs
• Streaming and controlling isochronous data streams
• Reserving devices and performing scheduled actions
• Device control via DCMs and FCMs
• User interaction with UI mechanisms
HAVi Devices:
HAVi devices are classified into four categories (see Table 1): Full AV devices (FAV), Intermediate AV devices (IAV), Base AV devices (BAV) and Legacy AV devices (LAV). HAVi compliant devices fall into the first 3 categories and all other devices belong to the 4th category. FAVs and IAVs are controlling devices in the HAVi network while BAVs and LAVs are the devices they control.
HAVi’s ROLE IN ECONOMY:
Eight major consumer electronics manufacturers have come up with an open standard enabling home entertainment devices to communicate intelligently with each other. The HAVi (Home Audio Video Interoperability) standard promises to bring true platform independent interoperability to consumer devices using high bandwidth IEEE 1394 (FireWire) as the connecting medium.
CONCLUSION
HAVi comes with great promises, promises that seem to be quite troublesome to fulfill.
However, with so many large companies working for a common goal, there is a good chance that HAVi will eventually prove to be what it promised. In the end, it is up to customers if they want to adopt the new technology. When new features and possibilities are as great as with HAVi, there’s no question about the fact that HAVi will be something that customers want,
providedthat it comes with a reasonable price tag and solid functionality.