UV Hand Sterilization Station with Motion Sensor
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Solution Overview
Problem
Hand washing with soap alone is insufficient to effectively remove viral and bacterial infections, necessitating an automated ultraviolet light hand sterilization system.
Innovation Solution
An automated ultraviolet light hand sterilization system comprising a housing with a UV sterilization unit, motion sensing system, timer, power supply, and controller, which emits UV light for a set duration upon hand detection, ensuring thorough hand disinfection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hand washing with soap is used, then hands are cleaned, but viral and bacterial infections are not effectively removed
Solution Approach 1:
The patent applies UV-C radiation, which is normally harmful to microorganisms, to destroy viral and bacterial DNA/RNA structures. This converts the harmful effect of UV radiation on living organisms into a beneficial sterilization effect by targeting and destroying pathogen genetic material, thereby enhancing hand cleaning effectiveness beyond what soap alone can achieve.
2Extent of automation
If manual operation is used, then system simplicity is maintained, but automation and consistency are reduced
Solution Approach 1:
The system employs motion sensors to automatically detect when hands are present and triggers the UV-C sterilization process without requiring manual activation. The timer automatically controls the duration of UV exposure, and the system deactivates when hands are removed. This self-service automation ensures consistent sterilization while reducing the need for complex user interfaces or manual operation.
3Reliability
If UV light intensity is increased, then sterilization effectiveness is improved, but energy consumption increases
Solution Approach 1:
The system uses periodic UV-C radiation delivered through controlled timing rather than continuous high-intensity exposure. The motion-activated timer ensures UV light is emitted only for the necessary duration when hands are present, avoiding wasteful continuous operation. This periodic action maintains sterilization effectiveness while significantly reducing overall energy consumption compared to continuous high-intensity UV emission.
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 destroys microorganisms' genetic material on hands, providing a reliable and efficient method for hand sterilization, adaptable to various user heights and accessible for both visual and visually impaired users.
Implementation Method 1
an ultraviolet light (UV) sterilization system
Implementation Method 2
the UV sterilization system is triggered to emit UV sanitizing light... The UV light emitted by the sterilization system radiates the microorganism's genetic material (DNA and RNA), thereby destroying the cell's ability to reproduce
Data Source
AI summary
An automated ultraviolet (UV) light hand sanitizing system. The automated hand sanitization system includes a housing for attachment to the wall or other suitable structure, a UV sterilization system on an angled underside of the housing, a motion sensing system to detect the user's hands and to begin the UV sterilization process, a timer system to track the time during the UV sterilization process, and a photovoltaic energy system to power the system.