Bluetooth Peer-to-Peer Communication for Offline Social Networking
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Solution Overview
Problem
Social software on mobile devices faces challenges with limited Internet connectivity and poor positioning accuracy, especially indoors, and risks privacy leaks due to server-based position information storage.
Innovation Solution
A communication method and device utilizing Bluetooth for communication between wearable devices, allowing identity information transmission and message exchange without Internet connection, enhancing positioning accuracy and maintaining user privacy by avoiding server-based data storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Internet connection is used for social software communication, then communication functionality is enabled, but communication cannot be performed in areas with limited Internet connectivity such as trains or planes
Solution Approach 1:
The patent introduces Bluetooth as an intermediary communication channel between mobile devices. When Internet connectivity is unavailable, the system automatically switches to Bluetooth for direct peer-to-peer communication, enabling social software to function in areas with limited Internet access while maintaining communication reliability through alternative pathways.
Solution Approach 2:
The system dynamically selects between Internet and Bluetooth communication modes based on availability. The communication channel is not fixed but adapts in real-time to environmental conditions, switching from Internet-based communication to Bluetooth-based communication when Internet connectivity is detected to be limited or unavailable.
2Ease of operation
If server-based position information storage is used, then user location data can be accessed and shared, but user privacy is at risk of leakage
Solution Approach 1:
The patent extracts the position information processing function from the remote server and relocates it to the local mobile device. Position data is now stored and processed locally rather than being uploaded to and stored on remote servers, eliminating the privacy leak risk associated with centralized server storage while maintaining location sharing functionality through local Bluetooth communication.
Solution Approach 2:
The system implements self-service by enabling devices to independently store, process, and share position information without relying on external servers. Each device manages its own location data locally and can share it directly with nearby devices through Bluetooth, making the system self-sufficient and eliminating server-based privacy vulnerabilities.
3Measurement precision
If GPS-based positioning is used, then position information can be obtained, but positioning accuracy is poor in indoor environments without GPS signals
Solution Approach 1:
The patent implements multi-functionality by combining GPS positioning with Bluetooth-based proximity detection. The system can switch between GPS for outdoor positioning and Bluetooth for indoor positioning, making the positioning system universally applicable across different environments. Bluetooth serves as a complementary positioning mechanism that functions where GPS fails, particularly in indoor settings.
Solution Approach 2:
The system substitutes GPS satellite-based electromagnetic positioning with Bluetooth local wireless communication for indoor positioning. When GPS signals are unavailable indoors, the system replaces the satellite-based mechanism with a local wireless signaling mechanism that uses Bluetooth to determine proximity and relative position between devices in the same physical space.
Data Source
AI summary
A method and device are provided to assist and accomplish a communication between two strange communication terminals without Internet connection. The method includes transmitting a broadcast package via Bluetooth, which comprises identity information of a first communication terminal, obtaining communication information sent by a second communication terminal after receiving the broadcast package, and communicated with the first communication terminal by the second communication terminal via Bluetooth, and assisting in completing a communication between the first communication terminal and the second communication terminal according to the communication information. The two communication terminal still can communicate with each other without Internet connection, and the position accuracy is improved by communicating with Bluetooth.