Wireless Synchronization Using Time Gap Status Detection
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Solution Overview
Problem
Wireless communication systems face errors due to unsynchronized system clocks between devices, which can be further exacerbated by interference or obstacles affecting time synchronization signals.
Innovation Solution
A synchronization method involving a series of periodic pulses where the receiving time gap between pulses is measured to determine the status of a device, allowing it to decide whether to synchronize its system clock with the wireless signal, effectively ignoring interfered or delayed pulses to maintain accurate synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless signals are used for time synchronization, then the synchronization process can be performed remotely between devices, but the signals can be interfered by background noises or blocked by obstacles leading to synchronization errors
Solution Approach 1:
The system performs preliminary actions by continuously monitoring the receiving time gap between pulses and comparing it against predetermined thresholds before synchronization occurs. This advance detection and status determination ensures that only reliable synchronization signals are processed, preventing interference or obstacles from causing synchronization errors while maintaining remote synchronization capability
2Productivity
If the second electronic device continuously attempts to synchronize its system clock, then synchronization can be maintained, but errors occur when signals are interfered or delayed
Solution Approach 1:
The system implements feedback by continuously measuring the receiving time gap between received pulses and using this information to determine the status of the second electronic device. Based on this feedback, the system dynamically decides whether to synchronize the system clock with the received wireless signal, thereby maintaining high synchronization frequency while ensuring accuracy by avoiding synchronization when interference or delays are detected
Data Source
AI summary
A synchronization method, suitable between a first electronic device and a second electronic device, includes following operations. A first pulse of a wireless signal sent from the first electronic device is received by the second electronic device. A first status of the second electronic device is determined. A second pulse of the wireless signal is received after the first pulse. A receiving time gap between the first pulse being received and the second pulse being received by the second electronic device is measured. A new status of the second electronic device is determined according to the receiving time gap and the first status of the second electronic device. Whether to synchronize a system clock on the second electronic device with the second pulse of the wireless signal is determined according to the new status.