Synchronous Video Playback Recovery Using Preloaded Time Points
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Solution Overview
Problem
Large-screen devices in a local area network require manual recovery operations to re-enter a synchronous playing state after a user-triggered function operation, disrupting the synchronization process.
Innovation Solution
Implement a method where large-screen devices stop playing video data and display a corresponding function upon user interaction, determine a playing time point and target video data for next synchronous playback, and preload the target video data to automatically re-enter the synchronous state at the designated time, using Network Time Protocol (NTP) for time correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual recovery operation is required to re-enter synchronous playing state, then system reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The large-screen device automatically detects the end of function operation and autonomously re-enters the synchronous playing state without requiring manual intervention. The device serves itself by monitoring its own state and automatically transitioning back to synchronous playing, eliminating the need for user-triggered recovery operations.
Solution Approach 2:
The device performs preliminary preparation by preloading target video data before the synchronous playing time point arrives. This advance preparation ensures that when the device automatically transitions back to synchronous playing, the video data is already ready, enabling seamless and immediate resumption without interruption or manual recovery.
2Productivity
If video data is preloaded before playing time point, then productivity is improved, but use of energy deteriorates
Solution Approach 1:
The device preloads target video data in advance before the synchronous playing time point, but stops this preliminary action when the time point is reached or exceeded. This time-based control ensures that preloading occurs only when necessary to maintain synchronous playing, avoiding continuous energy-consuming loading operations.
Solution Approach 2:
The device periodically checks whether the current time has reached the synchronous playing time point and adjusts its video loading behavior accordingly. This periodic monitoring creates a rhythm of loading and stopping, where loading occurs in intervals before the time point and stops when the time point is reached, optimizing energy usage while maintaining readiness.
Data Source
AI summary
A method for synchronously playing video data in response to a triggered function operation includes, stopping playing the video data and displaying a function corresponding to the function operation. A playing time point is determined for synchronously playing video data again and target video data. The target video data is video data to be synchronously played at the playing time point. The preloaded target video data is played at a moment corresponding to the playing time point, and a synchronous playing state is entered.