Central Device Timing Shift for Multi-Watch Sync
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Solution Overview
Problem
Existing wireless communication systems struggle to synchronize time across multiple wrist watch type terminal devices connected to a single cell-phone device, often resulting in unsuccessful connections and failed time synchronization due to overlapping connection timings.
Innovation Solution
A wireless communication system comprising a central device and multiple peripheral devices, where the central device receives timing information from peripherals, determines overlapping timings, and adjusts these timings by shifting them by a specific interval to prevent overlap, ensuring successful connections and time synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple wrist watch type terminal devices send advertisement at the same timing for automatic time correction, then the connection timing is simplified and mass production is easier, but the cell-phone device cannot establish connection to multiple devices simultaneously resulting in unsuccessful connection
Solution Approach 1:
The system performs preliminary determination of timing overlap before connection establishment. The cell-phone device determines in advance whether advertisement timings of multiple peripheral devices overlap, and if overlap is detected, it shifts the timing of one or more devices to avoid conflict, thereby preventing connection failure before it occurs
Solution Approach 2:
The advertisement timing is made dynamic and adjustable rather than fixed. The cell-phone device can shift the advertisement timing of peripheral devices based on determined overlap conditions, allowing the system to adapt timing configurations to avoid conflicts while maintaining ease of mass production
2Device complexity
If the cell-phone device establishes connection to one wrist watch type terminal device at a time, then connection management is simplified, but the ability to time-synchronize multiple devices simultaneously is reduced
Solution Approach 1:
The system performs preliminary determination of timing overlap before connection establishment. By checking whether advertisement timings overlap in advance and shifting timings when necessary, the system prepares the connection schedule to avoid conflicts, enabling subsequent simultaneous connections without increasing management complexity
Solution Approach 2:
The timing shift mechanism acts as an intermediary that mediates between multiple peripheral devices seeking to connect simultaneously. By adjusting advertisement timings of individual devices based on overlap determination, the system enables multi-device synchronization while maintaining simple one-at-a-time connection management
Data Source
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AI summary
Peripherals (201 and 202) send timing information presenting a timing of acquiring time information to a central (100), The central (100) changes the timing in the received timing information so that the timing presented by the timing information received from the peripheral (202) does not overlap with the timing presented by the already received timing information of the other peripheral (201). The central (100) makes the peripheral (202) change a setting of the timing information based on the changed timing information.