Multi-Modal Access and Temperature Monitoring System
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Solution Overview
Problem
Existing biometric identification systems for restricted areas fail to accurately validate the identity and health status of individuals due to errors in temperature measurement, particularly with non-contact methods like infrared thermometers, which are unreliable and cannot detect subtle changes in core body temperature, leading to potential misclassification of health conditions.
Innovation Solution
A system that integrates facial recognition with contactless health assessment using multiple temperature measurement modalities, including infrared thermography, to establish a baseline of normal health parameters for individuals, allowing for precise detection of elevated temperatures and guiding access decisions, while also tracking health data over time to monitor potential contagions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If non-contact infrared temperature measurement is used for rapid screening, then screening speed is improved, but measurement precision deteriorates
Solution Approach 1:
The patent combines multiple temperature measurement modalities (infrared thermography, contactless thermometers, and contact-based thermometers) into a unified screening system. This merging allows the system to leverage the speed of non-contact methods while compensating for their precision limitations using contact-based measurements, thereby resolving the contradiction between screening speed and measurement precision.
Solution Approach 2:
The system introduces an intermediary multi-modal measurement approach that bridges the gap between rapid non-contact screening and precise contact-based measurement. By using infrared thermography as an initial screening tool and follow-up contactless or contact-based thermometers for verification, the system achieves both rapid throughput and accurate temperature detection.
2Ease of operation
If contactless infrared thermometers are used, then ease of operation is improved, but reliability deteriorates
Solution Approach 1:
The patent merges contactless infrared thermography with contactless and contact-based thermometer measurements to create a reliable multi-modal system. This combination maintains the ease of operation of contactless methods while improving reliability through multiple measurement modalities that can cross-validate results and compensate for individual method limitations.
Solution Approach 2:
The system implements feedback mechanisms where temperature measurements from multiple modalities are continuously compared and validated. When discrepancies are detected, the system can trigger re-measurements or switch between different measurement methods, thereby maintaining high reliability while preserving ease of operation through automated decision-making.
3Measurement precision
If multiple temperature measurement modalities are integrated, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal temperature measurement system that can perform multiple functions (rapid screening, precise measurement, verification) using a single integrated platform. This multi-functionality approach allows the system to achieve high measurement precision across different scenarios without proportionally increasing complexity, as the same hardware infrastructure supports multiple measurement modalities.
Solution Approach 2:
The system segments the temperature measurement process into distinct stages (initial screening, verification, confirmation) and assigns appropriate measurement modalities to each stage. This segmentation allows the system to use simpler methods when sufficient and reserve more complex measurements for cases where they are truly needed, thereby managing overall system complexity while maintaining precision where required.
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
This system provides accurate and rapid identification and health assessment of individuals, reducing the risk of undetected illnesses entering restricted areas, enabling better surveillance and response to health crises by establishing a baseline for normal health parameters and tracking temperature variations over time.
Implementation Method 1
Contactless, non-invasive measurement of the core temperature of an individual has long been accomplished by infrared (IR) devices implemented in the form of forehead thermometers
Implementation Method 2
thermal imagers
Data Source
AI summary
The Access and Temperature Monitoring system (ATMs) checks the identity and health of persons seeking access to a facility, building, event, airport border, or controlled area. It quickly checks the person's identity by recognizing the person, for example, by facial recognition, or by reading a unique token the person has, such as a smart card. If the person seeking access is recognized, the system quickly checks the health of the person. For example, a contactless measuring of core temperature is taken and is then compared to an on-file core temperature of the individual to see if it is elevated. If elevated, a secondary check is made by a precision medical instrument and compared to the precision data on file. Networking ATMs together to an Access Control Center will further assist in identifying virus outbreaks and reduce response time to assist in saving lives.