IoT Multi-Controller Account Linkage for Cross-Vendor Smart Home Control
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Solution Overview
Problem
Existing smart home devices face compatibility issues due to the use of different IoT platforms, leading to reduced usability and inconvenience when trying to integrate devices from various manufacturers.
Innovation Solution
A method for multi-controlling IoT devices through C2C account linkage, allowing multiple controllers to manage IoT devices by linking first and second controllers' accounts, enabling seamless integration and control across different vendor clouds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices from different manufacturers use different IoT platforms, then each manufacturer can maintain its own ecosystem and control, but compatibility among devices is reduced and usability is worsened
Solution Approach 1:
The patent introduces a cloud server as an intermediary that receives control requests from first controllers, retrieves device information from second controllers through account linkage, and forwards control instructions to IoT devices. This mediator architecture enables cross-platform control while maintaining each manufacturer's ecosystem independence, resolving the contradiction between ecosystem control and usability.
2Adaptability or versatility
If multiple controllers are introduced to manage IoT devices, then control flexibility and user collaboration are improved, but system complexity and commissioning difficulty increase
Solution Approach 1:
The patent implements preliminary account linkage between controllers before actual device control operations. The cloud server stores pre-established trust relationships between first and second controllers, so when control requests are made, the system can quickly verify permissions without complex real-time negotiations. This preliminary setup reduces operational complexity while maintaining control flexibility.
Solution Approach 2:
The system implements feedback mechanisms where the cloud server continuously monitors control requests, verifies controller permissions through account linkage, and provides status information back to controllers. This feedback loop automates permission management and reduces the complexity of multi-controller coordination by providing real-time system state information.
3Ease of operation
If account linkage between different clouds is established, then cross-vendor device control is enabled, but security risks and authentication complexity increase
Solution Approach 1:
The cloud server acts as a secure intermediary that handles authentication between different vendor clouds. Instead of direct authentication between first and second controllers which would create security vulnerabilities, the mediator verifies credentials, manages token exchange, and enforces access policies centrally, enabling cross-vendor control while maintaining security through centralized control.
Data Source
AI summary
Proposed are a method and a device for multiple control of an IoT controlee device on the basis of C2C account linkage in a wireless LAN system in a smart home environment. Specifically, a first control device connects to a first cloud on the basis of a first account. A first control device receives commissioning information of a second control device for the controlee device on the basis of a connection between the first cloud and a second cloud. The first control device adds commissioning to the controlee device on the basis of the commissioning information. The second control device is connected to the second cloud on the basis of a second account. The first account and the second account are linked with each other.