UPnP Device Identification via QR Code Recognition
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Solution Overview
Problem
In UPnP technologies, users face difficulties in distinguishing between similar types of devices due to the lack of distinct identification, making it challenging to establish efficient communication between UPnP devices and control points.
Innovation Solution
The method involves recognizing a mark, such as a QR code, on a UPnP device using an imaging unit, analyzing the image data to identify the device, and establishing communication based on the information included in the mark, which includes identification and additional information like device state changes, allowing for easy device identification and service provision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If UPnP devices use standard identification information stored in the control point, then device registration is simple, but device distinction becomes difficult when multiple similar devices are registered
Solution Approach 1:
The patent uses visual copying of device images captured by a camera to create identification marks (QR codes) that are displayed on the device surface. This allows the control point to identify devices through image recognition rather than relying solely on stored identification information, solving the problem of distinguishing between multiple similar devices while maintaining simple registration procedures
Solution Approach 2:
The patent employs visual appearance changes through QR codes and device images that can be captured and recognized. These visual markers provide distinct identification for each device, enabling the control point to differentiate between multiple devices of the same type through image analysis rather than relying on ambiguous stored information
2Productivity
If detailed device information is exchanged between UPnP devices, then communication efficiency improves, but information processing complexity increases
Solution Approach 1:
The patent extracts only the essential identification information needed for device recognition into visual marks (QR codes), separating this critical identification data from the full device information. This allows rapid device identification through simple image recognition while detailed device information is exchanged separately through standard UPnP protocols, thus improving communication efficiency without unnecessarily increasing processing complexity
Solution Approach 2:
The patent performs preliminary device identification through QR code recognition before establishing full communication. This preliminary action of capturing device images and generating identification marks in advance allows the control point to quickly identify and select target devices, streamlining the communication establishment process while reducing the complexity of real-time information processing
Data Source
AI summary
A method and apparatus for establishing communication between a first device and a second device. In the method, the second device recognizes a mark representing the first device to establish communication with the first device, and establishes communication with the first device, based on information included in the mark.