Dynamic UPnP Description Updates for Service Configuration Changes
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Solution Overview
Problem
In UPnP networks, existing technologies fail to dynamically update device and service descriptions in response to changes in service configurations, leading to mismatches between device capabilities and control point information, which hinders effective device control and service utilization.
Innovation Solution
A method and apparatus that sense changes in service configurations, update descriptions accordingly, and advertise these updates within the UPnP network, utilizing a sensing unit, description updating unit, and communicating unit to ensure that control points have accurate and current information about available services and devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If device service configurations change dynamically, then device functionality and adaptability are improved, but description accuracy and control point information consistency deteriorate
Solution Approach 1:
The patent implements dynamic description updates by monitoring service configuration changes and automatically regenerating UPnP device and service descriptions when configurations change. The controlled device sends notifications to control points, enabling the system to adapt to dynamic changes while maintaining information accuracy through continuous synchronization.
Solution Approach 2:
The patent establishes a feedback mechanism where controlled devices monitor their own service configuration changes and proactively notify control points about these changes. This feedback loop ensures that control points receive updated information about available services and devices, resolving the information consistency issue while allowing functional flexibility.
2Reliability
If static descriptions are used in UPnP network, then information consistency is maintained, but device control effectiveness and service utilization deteriorate
Solution Approach 1:
The patent transitions from static to dynamic descriptions by implementing real-time update mechanisms. When service configurations change, the controlled device automatically generates new descriptions and notifies control points, ensuring both information consistency and effective device control through current, accurate descriptions.
Solution Approach 2:
The patent maintains continuous information freshness by implementing ongoing description updates and notifications. Rather than periodic updates, the system continuously monitors for changes and immediately propagates updated descriptions to control points, ensuring uninterrupted accuracy and effectiveness in device control and service utilization.
Data Source
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AI summary
Provided is a method, medium and apparatus for providing a dynamically changed universal plug and play (UPnP) description. The method includes sensing a change of a service configuration of a device complying with a predetermined standard, updating a description including information about a service based on the change of the service configuration, and advertising that the description is updated. Thus, the service configuration is matched with the description and a control point can correctly control the device whose service configuration is changed.