Home Network Device Service Function Error Isolation
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Solution Overview
Problem
In UPnP networks, identifying and addressing errors in service functions of devices connected to the home network is cumbersome, requiring device rebooting and repeated connection attempts, which complicates error management and network stability.
Innovation Solution
A method for controlling Management Devices (MD) within a home network that allows for selective deactivation of faulty service functions while maintaining device connection, utilizing diagnostic processes and control messages to identify and manage errors through UPnP Device Management standards, enabling continued network connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If device rebooting is performed to address service function errors, then error resolution is achieved, but network connectivity is interrupted and operation time is lost
Solution Approach 1:
The patent segments the device into multiple independent service functions (e.g., printing, scanning, faxing). When an error occurs in one service function, only that specific function is deactivated while other functions continue to operate normally. This segmentation allows error isolation without requiring complete device rebooting, thereby maintaining network connectivity for unaffected services.
Solution Approach 2:
The patent extracts and removes the faulty service function from the active device operations. By identifying and deactivating only the problematic service function rather than the entire device, the system resolves errors while preserving the operational status of the device and its other service functions, thus avoiding network connectivity interruption.
2Reliability
If device rebooting is performed to address service function errors, then error resolution is achieved, but device complexity increases due to repeated connection attempts
Solution Approach 1:
The patent implements segmentation by separating service function management from device connection management. The controller can selectively deactivate individual service functions without affecting the device's network connection status. This eliminates the need for repeated connection attempts and reduces the complexity of connection management while maintaining error resolution capability.
Solution Approach 2:
The device includes a controller that automatically detects service function errors and performs selective deactivation without requiring external intervention or repeated connection attempts. This self-service capability simplifies error management by automating the error resolution process while maintaining stable network connectivity.
3Reliability
If complete device deactivation is performed to address service function errors, then error impact is contained, but operational versatility decreases as all functions become unavailable
Solution Approach 1:
The patent applies segmentation by dividing the device into multiple independent service functions that can be individually deactivated. When an error occurs in one service function, only that specific function is deactivated while other functions continue to operate normally. This ensures error containment without sacrificing the availability of other service functions, thereby maintaining operational versatility.
Solution Approach 2:
The patent implements local quality by applying different operational states to different service functions within the same device. The controller can set one service function to an inactive state due to errors while keeping other service functions in an active state. This localized error management preserves the versatility of the device by maintaining availability of unaffected functions.
Data Source
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AI summary
A method for controlling functions of a Management Device (MD) included in a home network is provided. The method for controlling the functions of the MD by a Control Device (CD)in a home network system including the CD for controlling functions of an Electronic Device (ED) connected to a home network and the MD, the functions of which are managed by the CD, includes diagnosing at least one function performed by the MD; identifying information necessary to control the at least one function; and transmitting, to the MD, control information for controlling the at least one function, in consideration of the information necessary to control the at least one function.