Dynamic Activity Zone Adjustment for False Trigger Reduction
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Solution Overview
Problem
Existing monitoring systems require manual user input to change activity zones, which are prone to false triggers due to background motion detected outside the camera's field-of-view.
Innovation Solution
A monitoring system that dynamically adjusts activity zones based on sensed activity outside the camera's field-of-view using separate presence detectors, such as PIR sensors, allowing for flexible redefinition of zones to reduce false triggers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If activity zones are defined within the camera field-of-view to monitor specific areas, then the system can focus monitoring on areas of interest, but the system becomes prone to false triggers when motion is detected outside the field-of-view
Solution Approach 1:
The patent extends the monitoring capability from the camera's two-dimensional field-of-view to a third dimension by incorporating presence detectors positioned outside the field-of-view. This allows the system to detect motion in areas beyond what the camera can see, enabling more reliable false trigger reduction while maintaining activity zone flexibility through multi-dimensional sensing coverage.
Solution Approach 2:
The presence detectors act as intermediaries between the external environment and the camera system. These detectors sense motion outside the field-of-view and provide triggering signals that complement the camera's visual detection, allowing the system to distinguish between relevant and irrelevant motion events before activating alerts.
2Adaptability or versatility
If multiple activity zones are defined to cover different monitoring areas, then the system can monitor multiple locations, but the system complexity increases with manual configuration requirements
Solution Approach 1:
The system automatically configures and adjusts activity zones based on presence detector signals without requiring manual user input. The presence detectors continuously monitor their respective fields-of-view and automatically trigger corresponding activity zones, enabling the system to adapt to changing environmental conditions and monitoring needs autonomously.
Solution Approach 2:
The presence detectors serve multiple functions: they detect motion outside the camera field-of-view, trigger appropriate activity zones, and provide contextual information for intelligent decision-making. This multi-functionality reduces the need for separate dedicated sensors for each monitoring task, simplifying the overall system configuration.
3Loss of information
If the system uses camera-based motion detection to trigger alerts, then the system can visually confirm events, but the system generates unnecessary recordings due to background motion
Solution Approach 1:
The presence detectors perform preliminary motion detection in areas outside the camera field-of-view before the camera activates recording. By pre-screening for relevant events using the presence detectors' broader coverage, the system avoids unnecessary camera activation and recording for background motion, conserving energy while maintaining recording accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces false triggering by dynamically adjusting activity zones in response to sensed activity, providing more sophisticated alert triggering and reducing unnecessary recordings.
Implementation Method 1
The presence detector may be a motion detector such as a PIR detector
Data Source
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AI summary
An area monitoring system is provided that allows dynamic selection of activity zones in which motion serves to trigger a transmission of an alert from the camera. Activity zones may be changed according to motion detected by one or more motion sensors having a field-of-view at least partly outside of the field-of-view of the camera.