Synchronized Video and Log Logging System for Device Testing
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Solution Overview
Problem
The complex testing of modern smartphones for compliance with legislative regulations requires efficient logging systems that can synchronize video and log data to provide comprehensive test results, as existing systems lack the ability to visually correlate test messages with device reactions.
Innovation Solution
A logging system that includes a video recording unit, a log memory, and a processor to synchronize and store video and log data with time stamps, allowing for the combination of log messages with video frames, and optionally includes a display unit for tabular presentation and audio recording to enhance test analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If video recording and log storage are implemented separately without synchronization, then device complexity is reduced, but information completeness deteriorates because test engineers cannot correlate test messages with device reactions
Solution Approach 1:
The patent combines video recording functionality and log storage into a unified synchronized logging system. The video recording unit captures device reactions while the log storage simultaneously records test messages, and both are time-stamped and correlated through a common timing reference, ensuring information completeness without requiring separate unsynchronized systems
Solution Approach 2:
The patent introduces time stamps as an intermediary element that mediates between video recording and log storage. Each video frame and log entry is assigned a time stamp, enabling precise correlation and synchronization of visual and textual test data without direct coupling between the recording and storage systems
2Loss of information
If multiple video recording units are deployed to capture both device and tester, then information completeness improves, but device complexity increases
Solution Approach 1:
The patent implements video recording units with multi-functionality that can capture different views (device screen, physical device, tester interface) as needed. The same recording infrastructure serves multiple purposes by adjusting recording parameters and targets, reducing the need for dedicated specialized recording systems for each view
3Measurement precision
If video recording is performed in anechoic chambers with strict positioning requirements, then measurement precision is maintained, but ease of operation deteriorates due to restricted equipment positioning
Solution Approach 1:
The patent employs flexible positioning strategies where video recording units can be placed outside the anechoic chamber through openings or penetrations, allowing the recording equipment to remain in non-anechoic environments while capturing video of devices being tested inside the anechoic chamber, thus maintaining measurement precision without restricting operator access
Data Source
AI summary
Systems and methods are provided for logging tests of electronic devices, which are performed on the electronic devices by a measurement and/or testing device. While logging the test messaged and any other messages generated by the measurement and/or testing device during the test, a video is recorded of the respective electronic device and timely synchronized with the log of the test.