Epidemic Prevention System with Calibration Device
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Solution Overview
Problem
Existing epidemic prevention systems lack the capability to accurately and automatically monitor body temperature and mask wearing at public entrances and exits, which is crucial for preventing the spread of infectious diseases like COVID-19.
Innovation Solution
An intelligent epidemic prevention system that combines a visible-light camera and a thermographic camera with a calibration device and a computing device to accurately determine if a user is wearing a mask properly and if their body temperature is within a safe threshold, thereby controlling access accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual temperature checking and mask verification are performed at checkpoints, then disease transmission risk can be reduced, but labor costs and checking time increase
Solution Approach 1:
The patent replaces manual mechanical checking operations with an automated optical system. Visible-light cameras capture mask wearing status while thermographic cameras detect body temperature, eliminating the need for manual measurement and verification processes at checkpoints.
Solution Approach 2:
The system enables self-service epidemic prevention checking where individuals are automatically monitored without requiring manual intervention. The calibration device with heated metal plate allows the system to self-calibrate temperature measurements, making the entire process autonomous and eliminating labor dependency.
2Productivity
If automated temperature and mask monitoring systems are deployed, then checking efficiency improves, but system complexity and calibration requirements increase
Solution Approach 1:
The patent introduces a calibration device with a heated metal plate as an intermediary standard object. This calibration device serves as a mediator between the thermographic camera and actual temperature measurements, providing a known reference temperature that simplifies the calibration process and enables accurate temperature detection without complex calibration procedures.
Solution Approach 2:
The system changes the temperature parameter of the calibration device's metal plate to a predetermined known value. By controlling the metal plate's temperature to a specific parameter, the system establishes a reference point that simplifies subsequent temperature measurements and reduces the complexity of temperature calibration across different environmental conditions.
3Ease of operation
If thermographic cameras are used for temperature detection, then non-contact measurement is achieved, but measurement accuracy decreases without calibration
Solution Approach 1:
The patent performs preliminary calibration of the thermographic camera using a calibration device with a known temperature. Before actual temperature measurements are taken, the system uses the heated metal plate to establish calibration parameters and correct for environmental factors, ensuring accurate subsequent measurements without requiring manual intervention during actual checking.
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 effectively enhances disease prevention by ensuring accurate monitoring of body temperature and mask compliance, thereby reducing the risk of disease transmission at public entry points.
Implementation Method 1
a calibration device having a metal plate, wherein the metal plate is heated to a predetermined sensing temperature
Implementation Method 2
a thermographic camera recording a second calibration device image of the calibration device and a second user image of the user
Data Source
AI summary
An intelligent epidemic prevention system includes a calibration device, an access control system, a visible-light camera recording a first calibration device image of the calibration device and a first user image of a user, a thermographic camera recording a second calibration device image of the calibration device and a second user image of the user, and a computing device that calculates a calibration value according to the first and second calibration device images. The computing device determines whether the user wears a mask properly according to the first user image and generates a first result, and determines whether the temperature of the user is greater than or equal to a threshold temperature according to the calibration value and the second user image and generates a second result. The computing device controls the access control system to open or close according to the first and second results.