Position-Aware IoT Network Reconnection After Wi-Fi Changes

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Solution Overview

Problem

IoT devices often disconnect from servers due to Wi-Fi changes, such as router power-off or SSID/password changes, without user guidance, requiring manual re-registration.

Innovation Solution

An electronic device with a communication module, position sensor, and processor that scans networks and provides alarms or updates when network changes occur, allowing IoT devices to reconnect automatically.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If IoT devices are direct-connected to server through Wi-Fi, then connection speed and simplicity are improved, but connection stability deteriorates when network changes occur

Engineering Contradiction:
Improveconnection speedVSAvoidconnection stability
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The patent introduces a terminal device as an intermediary between the IoT device and server. When network changes occur, the terminal device detects the disconnection, obtains updated network information, and facilitates reconnection, thereby maintaining connection stability without sacrificing the direct-connection architecture's speed advantages

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The terminal device performs preliminary detection of device disconnection status and proactively obtains updated network information before the IoT device attempts reconnection. This preliminary action prevents connection failures and ensures seamless reconnection when network changes occur

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If manual re-registration process is required after network changes, then connection accuracy is maintained, but user operation complexity increases

Engineering Contradiction:
Improveconnection accuracyVSAvoiduser operation simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system implements self-service functionality where the terminal device automatically detects disconnections, obtains updated network information from the server, and completes the reconnection process without requiring user intervention. This eliminates manual re-registration operations while maintaining accurate device-server connections

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The terminal device continuously monitors connection status and receives feedback from the server about device offline states. Based on this feedback, the system automatically initiates network information updates and reconnection procedures, ensuring accurate connections without user involvement

Inventive Principle:
Principle #23Feedback

3Reliability

If automated network change detection is implemented, then connection reliability is improved, but device complexity increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The terminal device performs multiple functions including network scanning, device status detection, network information acquisition, and reconnection facilitation. By consolidating these functions in an existing multi-functional device rather than adding specialized components to IoT devices, the system achieves automated detection without significantly increasing overall system complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12557005B2Electronic device, system and operation method of thereof
Publication Date: 2026.02.17 SAMSUNG ELECTRONICS CO LTD
  • US12557005B2 patent drawing
  • US12557005B2 patent drawing
  • US12557005B2 patent drawing

AI summary

An electronic device is provided. The electronic device includes a communication module, a position sensor, and a processor. The processor is configured to obtain information of an external electronic device including status information of the external electronic device, position information of the external electronic device, and network information related to the external electronic device from a server through the communication module, check whether the external electronic device is in an offline state, based on the information, check whether the electronic device enters within a designated area at a position of the external electronic device, based on the position information of the electronic device obtained from the position sensor, in response to the external electronic device being in the offline state, scan a network through the communication module to check the network information in response to the electronic device being positioned in the designated area, and transmit the network information to the external electronic device in response to the network being different from the network information related to the external electronic device.