Unattended Lifeform Detection in Enclosed Spaces
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Solution Overview
Problem
Unattended individuals, such as children, pets, and the elderly, are at risk of heat-related injuries or fatalities due to being left in enclosed spaces like vehicles, where temperature and humidity conditions become dangerous, and existing systems fail to accurately detect their presence.
Innovation Solution
A system utilizing sensors to monitor temperature and humidity data within an enclosed space, which surprisingly decreases with a breathing occupant, allowing for the detection of unattended individuals and triggering alerts when conditions become unsafe, using a combination of temperature, humidity, and physiological data to determine presence and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature and humidity sensors are used to detect unattended lifeforms, then detection accuracy is improved, but false alarms increase due to inability to distinguish living occupants from inanimate objects
Solution Approach 1:
The detection system is segmented into multiple independent sensor channels (temperature, humidity, motion, light) that operate separately but contribute to a unified detection algorithm. This segmentation allows the system to analyze different physical phenomena independently, improving the ability to distinguish between living occupants and inanimate objects by comparing patterns across multiple data streams.
Solution Approach 2:
The sensor system is designed to perform multiple detection functions simultaneously - monitoring both environmental conditions (temperature, humidity) and occupancy status. The same sensor platform serves dual purposes: detecting the presence of any object and characterizing whether it is a living being, thereby reducing false alarms while maintaining detection accuracy.
2Reliability
If multiple sensors are deployed to improve detection reliability, then false alarms are reduced, but device complexity increases
Solution Approach 1:
Multiple sensor types (temperature, humidity, motion, light) are merged into a single integrated detection system with a unified processing algorithm. The sensors share common hardware resources such as power supply, data bus, and processing unit, which reduces overall system complexity despite the increased number of sensing elements. The merged approach allows cross-validation of detections across different sensor modalities.
Solution Approach 2:
The sensor system is designed as a multi-functional platform that simultaneously monitors environmental conditions and detects occupancy. This universal design allows the same hardware infrastructure to serve multiple detection purposes, reducing the need for separate dedicated systems and thereby managing complexity while improving reliability through redundant detection capabilities.
3Measurement precision
If the system monitors both temperature and humidity changes, then detection accuracy is improved, but energy consumption increases
Solution Approach 1:
The sensor system employs periodic sampling of temperature and humidity data at optimized intervals rather than continuous monitoring. The sampling frequency is dynamically adjusted based on environmental conditions and detection confidence levels, allowing the system to maintain high detection accuracy while minimizing energy consumption by keeping sensors in low-power states between measurements.
Solution Approach 2:
The system changes operational parameters such as sampling rate and sensor activation thresholds based on environmental conditions. When temperature and humidity differences between interior and exterior are small (low risk period), monitoring frequency is reduced. When differences exceed safety thresholds (high risk period), the system increases monitoring intensity, thereby optimizing the balance between detection accuracy and energy consumption.
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
Effectively detects the presence of unattended individuals in enclosed spaces by monitoring humidity and temperature changes, preventing heat-related hazards and ensuring timely alerts to prevent accidents.
Implementation Method 1
generate temperature data and humidity data associated with an interior of the enclosed space
Implementation Method 2
generate temperature data and humidity data associated with an interior of the enclosed space
Implementation Method 3
generate physiological data associated with the unattended animal
Data Source
AI summary
A system for determining whether an unattended animal is left in an enclosed space is provided. The system includes a sensor provided within the enclosed space that is configured to generate temperature data and humidity data associated with an interior of the enclosed space and generate physiological data associated with the unattended animal. The system includes a control system that (a) determines, based on the temperature data and the humidity data, whether the interior of the enclosed space is unsafe for the unattended animal, (b) determines, based on the physiological data, whether the unattended animal is within the interior of the enclosed space, and (c) based on the interior of the enclosed space being unsafe for the unattended animal, starts a countdown timer when the physiological data indicates a presence of the unattended animal within the interior of the enclosed space.