EMC Test System Video Playback Speed Adjustment
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Solution Overview
Problem
Electromagnetic compatibility tests require significant operator time to monitor and review video recordings of devices under test, as existing systems either require prolonged real-time observation or extensive video review, which is inefficient.
Innovation Solution
A test system comprising a camera for recording video data, a storage unit for storing the data, a video reproduction unit that allows for adjustable playback speed, and an event determining unit that automatically identifies test-relevant events, reducing operator time by allowing quicker evaluation and notification of important test results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a camera is mounted inside the test chamber to monitor the device under test, then the operator can observe test results, but a great deal of operator time is required to watch the monitor or review recorded videos
Solution Approach 1:
The system enables self-service by having the video reproduction unit automatically detect and reproduce only the relevant portions of test videos based on event conditions. The event determining unit automatically identifies when test results meet predetermined criteria, eliminating the need for continuous operator monitoring and reducing operator time while maintaining complete test result oversight.
2Loss of information
If the video reproduction unit plays back recorded video at real-time speed, then the operator can review test results, but the evaluation process takes a great deal of time
Solution Approach 1:
The system extracts only the relevant portions of test videos by having the event determining unit identify specific time periods when event conditions are met. The video reproduction unit then reproduces only these extracted relevant segments, eliminating the need to review entire test videos and significantly reducing review time while maintaining complete information about test results.
3Reliability
If the operator continuously monitors the device under test in real-time, then test results can be immediately observed, but the test process becomes inefficient and time-consuming
Solution Approach 1:
The system implements automated feedback by having the event determining unit continuously analyze video data against predetermined event conditions and automatically trigger video reproduction when relevant events are detected. This provides immediate notification of test results without requiring continuous operator monitoring, maintaining test accuracy while significantly increasing test speed and productivity.
Data Source
AI summary
A test system for performing a test on a device under test is provided. The test system comprises, at least one test device, configured for performing the test on the device under test, and at least one camera, configured for recording video data of the device under test and/or the at least one test device. Moreover, the test system comprises a storage unit, which is configured for storing the recorded video data and a video reproduction unit, which is configured for reproducing the recorded video. The video reproduction unit is moreover configured for reproducing the recorded video at an adjustable speed.