Bluetooth Proximity Control for Devices Without User Interfaces
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Solution Overview
Problem
Bluetooth devices without user interfaces face complexity in connection management, control, and disconnection, and users struggle to control or authorize connections between devices without a visual interface.
Innovation Solution
A method using Bluetooth technology to control adjacent devices by calculating proximity based on advertising messages and exchanging tokens for user authentication, allowing a control device to establish and manage connections and authorize operations between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Bluetooth devices without user interfaces are used, then device complexity increases, but ease of operation deteriorates
Solution Approach 1:
A control device is introduced as an intermediary between the user and Bluetooth devices without user interfaces. The control device receives proximity information from neighboring devices, calculates distances, and manages connection decisions automatically, eliminating the need for direct user interaction with devices lacking display interfaces.
Solution Approach 2:
The system performs automatic connection management based on proximity calculations. When a control device determines that neighboring devices are within a threshold distance, it automatically establishes connections without requiring manual user input, allowing devices to self-manage their connectivity state.
2Ease of operation
If automatic connection management is implemented, then ease of operation improves, but device complexity increases
Solution Approach 1:
The control device performs multiple functions including receiving proximity information, calculating distances, determining connection decisions, and managing Bluetooth connections. This multi-functional approach consolidates complexity into a single control device rather than distributing it across multiple components.
Solution Approach 2:
The control device pre-configures threshold values for distance calculations and prepares connection management protocols in advance. When proximity information is received, the device can quickly execute predetermined connection decisions without requiring complex real-time processing.
3Speed
If proximity-based connection decisions are made, then connection speed improves, but measurement precision requirements increase
Solution Approach 1:
The system uses a simplified distance calculation approach based on received signal strength indicators rather than precise measurement methods. By accepting approximate distance values and using threshold-based decision making, the system achieves fast connection decisions without requiring high measurement precision.
Data Source
AI summary
The present invention relates to a method for controlling a first device performed by a control device using the Bluetooth. The present invention provides a method and apparatus including receiving a first advertising message from a first device; calculating a first distance value that indicates a distance with the first device based on the first advertising message; receiving a second advertising message from a second device when the first distance value is smaller than a threshold value preconfigured to determine a proximity with the control device; and calculating a second distance value that indicates a distance with the second device based on the second advertising message, where a Bluetooth connection is established between the first device and the second device when the second distance value is smaller than the threshold value.