Electronic Device Relay Authentication Beyond the 30-Meter Range
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Solution Overview
Problem
Existing IoT devices require an initial connection within a predetermined distance, limiting their connectivity range and necessitating a method to establish connections without distance restrictions.
Innovation Solution
An electronic device obtains a list of relay devices, performs user authentication, and establishes connections with external devices through near field communication using a relay device, enabling connections beyond the typical 30-meter range by employing authentication keys and image-based PIN verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If initial connection is performed within a predetermined distance (e.g., 30m), then connection reliability is ensured, but connection range is limited
Solution Approach 1:
The patent introduces a relay device as an intermediary between the electronic device and external devices. The relay device receives connection requests from the electronic device and forwards them to external devices beyond the direct communication range, enabling extended connectivity while maintaining reliable connections through the mediating relay device
2Length of moving object
If relay device is introduced to extend connection range, then connection range is improved, but system complexity increases
Solution Approach 1:
The relay device autonomously performs connection management tasks including receiving connection requests, identifying external devices, forwarding requests, and managing authentication processes. This self-service capability reduces the need for complex control logic in the electronic device, simplifying the overall system while extending connection range
3Reliability
If authentication process is added for security, then security is improved, but operation time increases
Solution Approach 1:
The system performs authentication in advance during the initial connection process between the electronic device and external devices through the relay device. By completing authentication beforehand, the system ensures security requirements are met while allowing subsequent communications to proceed without repeated authentication delays
Data Source
AI summary
A method for controlling an electronic device is provided. The method includes obtaining a list including at least one relay device for performing initial connection with an external device, and displaying the list on a display, when one relay device is selected from the list, transmitting a request for access to the selected relay device to the selected relay device, when access approval information is received from the relay device, displaying, on the display, a list of at least one external device capable of performing connection by means of the relay device, when one external device is selected from the list of the at least one external device, receiving, from the selected external device, an authentication request for the selected external device, and when a user input is received in response to the authentication request, performing the initial connection with the selected external device.