Display Device Motion Detection Threshold Adjustment
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Solution Overview
Problem
The measurement accuracy of motion around a display device using multipath channel characteristic data is deteriorated due to an inappropriate threshold value, leading to inefficient power management and potential false detection of user presence.
Innovation Solution
The display device retrieves multipath channel characteristic data, generates similarity data, adjusts a threshold based on environmental indicators, and controls its power mode accordingly to accurately measure motion and reduce unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed threshold value is used for motion detection, then the device operation is simple, but the measurement accuracy of motion is deteriorated
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed threshold to a dynamically adjustable threshold that adapts to environmental conditions. The processor automatically adjusts the threshold based on environmental indicators such as temperature, humidity, and motion patterns, allowing the system to maintain high measurement accuracy across varying conditions without manual intervention.
Solution Approach 2:
The patent implements parameter changes by modifying the threshold value based on environmental parameters. The system monitors environmental indicators and adjusts the threshold parameter accordingly, enabling accurate motion detection in different environmental contexts while automating the complexity of threshold management.
2Measurement precision
If the threshold is adjusted frequently to improve accuracy, then the measurement accuracy improves, but the power consumption increases
Solution Approach 1:
The patent applies periodic action by adjusting the threshold at specific intervals or triggered by environmental changes rather than continuously. The system monitors environmental indicators and performs threshold adjustments only when necessary, reducing unnecessary power consumption while maintaining measurement accuracy through targeted, periodic updates.
Solution Approach 2:
The system implements self-service by automatically monitoring environmental indicators and adjusting the threshold without user intervention. This automated approach optimizes the balance between measurement accuracy and power consumption by performing adjustments only when environmental conditions warrant changes, eliminating the need for frequent manual adjustments that would consume additional power.
3Reliability
If the threshold is set too low, then false detection of user presence increases, but if set too high, then real motion is missed
Solution Approach 1:
The patent addresses this contradiction by dynamically changing the threshold parameter based on environmental indicators. The system adjusts the threshold to optimize detection accuracy for specific environmental conditions, reducing false detections while maintaining sensitivity to real motion. This adaptive approach ensures reliable user presence detection across diverse environments without sacrificing adaptability.
Solution Approach 2:
The system implements feedback by continuously monitoring environmental indicators and using this information to adjust the threshold. This closed-loop approach allows the system to learn from environmental patterns and refine its detection accuracy over time, balancing false detection reduction with real motion detection across varying environmental conditions.
Data Source
AI summary
A display device and a method of controlling the same are provided. According to various example embodiments, the display device may include: a communicator comprising communication circuitry configured to receive a wireless signal transmitted by a wireless router, and a processor configured to: retrieve multipath channel characteristic data based on the wireless signal, generate similarity data representing a similarity for each time period of the multipath channel characteristic data, adjust a threshold based on the similarity data, and increasing the threshold based on the similarity data based on the environmental indicator having appeared, measure a motion around the display device based on a comparison result between the similarity data and the threshold, and control the display device based on the motion within a specified range of the display device.