IoT Device Automatic Reconnection via Stored Relay Credentials
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Solution Overview
Problem
In IoT environments, when the SSID or password of a relay device changes, existing devices often fail to reconnect automatically, requiring manual user intervention, especially for devices without displays, leading to inconvenience and increased operational burden.
Innovation Solution
An electronic device with memory storing relay device information and communication interfaces, which upon detecting connection failure, initiates a specific communication mode and transmits stored relay device information to external devices, enabling automatic reconnection without user operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual user intervention is required for reconnection after relay device changes, then connection reliability is maintained through user confirmation, but user operation complexity increases and ease of operation deteriorates
Solution Approach 1:
The electronic device stores relay device information (SSID, password, IP address) in advance before any changes occur. When reconnection is needed, this pre-stored information is automatically used without requiring user input, thus maintaining reliability through accurate information while improving ease of operation by eliminating manual reconnection steps
Solution Approach 2:
The system enables automatic reconnection by having the external device autonomously use the pre-stored relay device information to reconnect to the network without user intervention. The electronic device also automatically notifies users of connection status, making the system self-servicing while maintaining reliability through automated monitoring and reconnection attempts
2Ease of operation
If automatic reconnection is implemented without user notification, then ease of operation improves, but information completeness deteriorates as users cannot know connection status
Solution Approach 1:
The electronic device implements a feedback mechanism by notifying users of the external device's connection status to the relay device. This allows automatic reconnection to proceed without user intervention (improving ease of operation) while simultaneously providing users with connection status information (preventing information loss), thus resolving the contradiction between automation and information transparency
3Productivity
If relay device information is stored for automatic reconnection, then productivity improves through automated processes, but device complexity increases due to additional memory and management requirements
Solution Approach 1:
The electronic device utilizes its existing memory and communication capabilities, which are already present for other functions, to store and manage relay device information. This multi-functional use of existing components enables automatic reconnection (improving productivity) without significantly increasing device complexity, as the same hardware resources serve multiple purposes
Data Source
AI summary
An electronic device is provided. The electronic device includes a memory stored with information related to a relay device, a first communication interface comprising circuity, a second communication interface comprising circuitry, and a processor configured to control the first communication interface to communicate with the relay device, control, based on a signal notifying communication connection failure between an external device and the relay device being received from the external device through the second communication interface, the second communication interface to transmit a signal requesting entry into a specific communication mode to the external device, and transmit, based on the external device being identified as entering the communication mode, information related to the stored relay device to the external device through the specific communication mode.