Swimming Pool Surveillance Using Multi-Sensor Object Detection
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Solution Overview
Problem
Existing pool security safety devices often produce false positives and lack the ability to autonomously detect unauthorized objects approaching a pool perimeter using a fixed single lens system, leading to delayed or ineffective life-saving actions.
Innovation Solution
A smart unauthorized object pool-perimeter breach alert system utilizing a combination of sensors, including infrared, RGB, auditory, olfactory, and geo-position sensors, coupled with a computer system for biometric data analysis, to identify and alert users about unauthorized objects approaching a pool perimeter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sensor types are used to improve detection accuracy, then false positives are reduced, but device complexity increases
Solution Approach 1:
The system divides the detection function into separate sensor modules (infrared sensor, audible sensor, image sensor, location sensor) that can independently detect different aspects of the situation. Each sensor type is segmented to detect specific parameters (heat signatures, sounds, visual images, geographic location), and the computer system integrates these segmented detections to make comprehensive unauthorized object identification.
Solution Approach 2:
Multiple sensor types are merged into a single integrated surveillance system with a central computer system that processes data from all sensors. The infrared sensor, audible sensor, image sensor, and location sensor work together synergistically to detect unauthorized objects, combining their respective strengths to achieve high detection accuracy while managing complexity through unified processing.
2Speed
If sensors are placed at the pool entry point to enable immediate detection, then response time is improved, but the monitoring area is limited
Solution Approach 1:
The system transitions from a single-point detection approach to a multi-dimensional monitoring approach by incorporating location sensors that provide geographic coordinates and infrared sensors that detect thermal signatures across a broader area. This dimensional expansion allows the system to monitor a larger perimeter area while maintaining fast response capability through distributed sensor placement.
Solution Approach 2:
The computer system acts as an intermediary that receives data from multiple sensors positioned at different locations and processes this information to determine unauthorized object presence. This intermediary processing enables the system to extend its monitoring area beyond a single entry point while maintaining rapid detection through coordinated sensor data analysis.
3Device complexity
If a fixed single lens system is used for autonomous sensing, then device simplicity is improved, but measurement precision deteriorates
Solution Approach 1:
The fixed single lens image sensor serves multiple functions: it captures visual images for object identification, provides geographic location data when combined with location sensors, and contributes to the overall surveillance monitoring. This multi-functional approach allows a simple fixed camera system to achieve precise object detection when integrated with other sensor types, eliminating the need for complex moving camera mechanisms.
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
The system minimizes false alarms by using multiple sensors and biometric data analysis to accurately detect and alert users about potential pool breaches, allowing for proactive intervention to prevent accidents.
Implementation Method 1
The sensors may comprise infrared detectors or cameras
Implementation Method 2
The sensors may comprise infrared detectors or cameras, video sensors or cameras, auditory sensors, olfactory sensors, and ultrasonic sensors
Data Source
AI summary
A swimming pool monitoring system including an imaging sensor for detecting the presence of an object within a defined perimeter of the swimming pool and a computer system operatively coupled to the imaging sensor with a non-transitory computer readable medium storing a program causing the computer system to execute processing to determine when an object is moving within a field of view of the imaging sensor once detected by the imaging sensor, to determine an angle of the object relative to the imaging sensor and to determine a range of the object relative to the imaging device to include a determination of a size of object for providing an alarm when the object approaches within a predetermined distance of the pool edge.