Dynamic Floor Sensor Thresholds for Activity Event Playback
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Solution Overview
Problem
Existing floor sensor systems generate false positive alerts due to environmental factors and sensitivity degradation over time, leading to inefficient event detection and playback analysis.
Innovation Solution
A system that continuously adjusts the normal state of floor sensors based on wavelength readings, generating alerts only when a predetermined count of readings exceed or fall below adjusted thresholds, and provides a user interface for real-time playback modification of activity events, allowing users to select and overlay relevant event layers on a location map.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If floor sensors operate with fixed sensitivity thresholds over time, then device complexity is reduced, but false positive alerts increase due to sensitivity degradation and environmental factors
Solution Approach 1:
The patent implements dynamic threshold adjustment where the sensor's normal state and alert thresholds are continuously updated based on recent wavelength readings. The system calculates a rolling average of readings and dynamically sets thresholds at mean ± 2 standard deviations, allowing the sensor to adapt to environmental changes and sensitivity degradation over time, thereby reducing false positives while maintaining operational simplicity
Solution Approach 2:
The system incorporates feedback mechanisms where wavelength readings are continuously monitored and used to adjust the normal state parameters. The rolling average calculation and dynamic threshold setting create a closed-loop system that automatically compensates for drift and environmental factors, improving reliability without requiring complex manual calibration or intervention
2Loss of information
If all detected events are presented in playback without user selection, then completeness of event information is improved, but ease of operation deteriorates due to difficulty in analyzing specific events of interest
Solution Approach 1:
The patent segments the complete event dataset into individually selectable event layers, each representing a specific detected event with its own metadata (location, time, type). Users can selectively activate or deactivate specific layers based on their analysis needs, allowing them to focus on events of interest while maintaining access to the complete event history if needed
Solution Approach 2:
The playback system dynamically responds to user selections by showing or hiding specific event layers in real-time. The interface allows users to interactively filter and focus on particular events during playback, transforming a static complete dataset into a dynamic, user-adaptable visualization that improves analysis efficiency without losing information
Data Source
AI summary
In certain embodiments, real-time playback modification for activity event playback may be facilitated. In some embodiments, an event list portion and an event playback portion may be provided on a user interface, where the event playback portion is configured to present a playback of events on a location map in accordance with event detection times and a set of event layers for the event playback. While the event playback is occurring, a user selection of events may be obtained via the event list portion of the user interface. While the event playback is occurring, a set of layers for the event playback may be modified based on the user selection. In some embodiments, based on the modification to the set of layers, event layers may be overlaid onto the location map of the event playback portion of the user interface.