Camera-Based External Device Authentication by Operation Sequence
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Solution Overview
Problem
Existing methods for authenticating external devices through user terminal devices are inconvenient, especially for devices that are difficult to access, such as ceiling-mounted air conditioners, requiring users to physically interact with them for authentication.
Innovation Solution
An electronic apparatus uses a camera to capture images of an external device's operations and compares the order of these operations with received order information to authenticate the device, allowing for remote authentication without direct physical interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a user directly presses a button or captures a QR code on the household device for authentication, then the authentication operation can be performed, but the user experiences inconvenience when the device is hard to reach (e.g., ceiling-mounted air conditioner)
Solution Approach 1:
The patent uses image copying technology to capture visual information of the external device's operations through a camera. Instead of requiring direct physical interaction with the device, the system creates a visual copy (image) of the device's operation sequence and compares it with the expected operation sequence, enabling remote authentication without physical contact.
Solution Approach 2:
The patent replaces the mechanical authentication method (physically pressing buttons or scanning QR codes on the device) with an optical system. The camera captures images of the device's operations, and image processing algorithms analyze these images to verify the operation sequence, substituting mechanical interaction with optical detection and computational analysis.
2Extent of automation
If the user terminal device performs authentication by direct physical interaction with the external device, then the authentication can be completed, but the system complexity increases due to requiring user presence and physical access
Solution Approach 1:
The external device performs self-authentication by executing a predetermined operation sequence that is captured by the camera. The device essentially authenticates itself by demonstrating its operational behavior through images, eliminating the need for a separate authentication device or manual user intervention, thereby reducing system complexity while maintaining automation.
Solution Approach 2:
The system implements feedback by comparing the captured operation sequence from images with the expected operation sequence. The image processing results provide feedback on whether the external device is operating correctly, enabling automatic verification and authentication based on the device's actual behavior rather than requiring external validation.
Data Source
AI summary
An electronic apparatus includes a camera; a communication interface configured to communicate with an external device; and at least one processor configured to: receive, through the communication interface from the external device, first order information including an order of operations performed by the external device, based on receiving the first order information, obtain a plurality of captured images including the external device through the camera, obtain second order information indicating an order of operations performed by the external device based on the plurality of captured images, and based on the first order information matching the second order information, authenticate the external device.