Access Control Temperature Screening With IR Sensing and UV Sanitization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing access control systems do not adequately address user-specific safety concerns, particularly in determining whether an individual with infectious symptoms should be granted access and fail to incorporate sanitization features.
Innovation Solution
An access control system that integrates infrared (IR) temperature sensing to determine if a user's body temperature is within a safe range, using IR transmitters and receivers to measure temperature and trigger door lock states, and includes sanitization features like UV lamps for hand sanitization before granting access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If temperature sensing is integrated into the access control system, then user safety is improved, but device complexity increases
Solution Approach 1:
The patent combines temperature sensing functionality with the existing access control system by integrating an IR transmitter and receiver into the identification unit. This merging approach allows the system to perform both identification and temperature screening functions through a single integrated device, thereby improving user safety while minimizing the increase in device complexity.
Solution Approach 2:
The identification unit is designed to serve multiple functions: it transmits IR radiation for temperature measurement, receives reflected IR radiation, and processes identification information. This multi-functionality allows the system to incorporate temperature sensing without adding separate dedicated equipment, thus improving safety while controlling complexity.
2Object-affected harmful factors
If infrared temperature sensing is added to determine user safety, then health safety is improved, but system complexity increases
Solution Approach 1:
The patent uses IR radiation as an intermediary to measure body temperature without direct contact. The IR transmitter sends radiation that reflects off the user's body parts, and the IR receiver captures this reflected radiation to determine temperature. This intermediary approach enables non-contact temperature sensing, improving health safety by eliminating close contact while adding minimal system complexity through standard IR components.
3Reliability
If access control restricts entry based on temperature, then safety is improved, but ease of operation deteriorates
Solution Approach 1:
The system automatically performs temperature screening and access control decisions without requiring manual intervention. The processor automatically compares the measured temperature against predefined thresholds and either grants or denies access accordingly. This self-service approach maintains safety while preserving ease of operation, as legitimate users experience no additional steps in the access process.
4Object-affected harmful factors
If UV sanitization is integrated into the access control system, then hygiene safety is improved, but device complexity increases
Solution Approach 1:
The UV sanitization feature performs hand sanitization before the user gains access to the secured area. By implementing sanitization as a preliminary action in the access workflow, the system improves hygiene safety without significantly increasing complexity, as the UV lamps can be integrated into the existing door frame or access point structure.
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 restricts entry of individuals with elevated temperatures, providing both secure and sanitized access while supporting integration with existing systems, reducing installation costs and enabling easy maintenance.
Implementation Method 1
an infrared (IR) transmitter configured to transmit IR radiation to one or more body parts of a user, an IR receiver configured to receive reflected IR radiation from the one or more body parts of the user
Implementation Method 2
one or more signal processing components to determine a temperature measurement of the body of the user based on the received IR radiation
Data Source
AI summary
An access control system includes an identification unit having an infrared (IR) transmitter that transmits IR radiation, an IR detector that receives the reflected IR radiation from one or more body parts of the user, one or more signal processing components to determine a temperature of the user based on the received reflected IR radiation, and an identification device to receive identification information of the user. The access control system also includes a processor that receives the reading of the user, instructs a door lock controller to unlock a door when the temperature is below the threshold temperature or the temperature is within the temperature range. The processor sends an alert when the temperature is above the threshold temperature or the temperature is outside the temperature range, and sends identification information of the user to one or more network devices.