UV Disinfection System with Sensor-Based Automatic Control
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Solution Overview
Problem
Existing disinfection methods for surfaces touched by people, such as handrails, are inefficient as they either fail to provide even disinfection or require time for disinfectant solutions to dry.
Innovation Solution
A disinfection system that includes an ultraviolet irradiator, a recognition sensor, and a control device, which automatically controls the ultraviolet irradiator based on the presence of people in the area to ensure even and efficient disinfection of touched surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a disinfectant solution is sprayed on touched surfaces, then disinfection is achieved, but the disinfection coverage is uneven and drying time is required
Solution Approach 1:
The patent replaces the mechanical spraying system with an ultraviolet irradiation system. Instead of using liquid disinfectant that requires spraying and drying, the system uses UV-C light to disinfect surfaces. This substitution eliminates the uneven coverage and drying time issues associated with liquid spraying, as UV light provides uniform irradiation across the targeted surfaces without requiring contact or drying time.
Solution Approach 2:
The patent changes the disinfection method from chemical (liquid disinfectant) to physical (ultraviolet radiation). By changing the parameter of disinfection approach from wet chemical application to dry light irradiation, the system achieves both effective disinfection and uniform coverage without the limitations of liquid application methods.
2Productivity
If ultraviolet irradiation is used for disinfection, then even and immediate disinfection is achieved, but additional control components are required
Solution Approach 1:
The control device integrates multiple functions: it controls the ultraviolet irradiator operation, receives signals from recognition sensors (such as motion or proximity sensors), and automatically activates or deactivates the disinfection function based on environmental conditions. This multi-functionality reduces the need for separate control components, thereby managing device complexity while maintaining high disinfection productivity.
3Loss of time
If automatic control based on recognition sensor is implemented, then disinfection timing is optimized, but device complexity increases
Solution Approach 1:
The system incorporates recognition sensors that detect environmental conditions (such as presence of people, motion, or specific triggers) and provide feedback to the control device. The control device uses this feedback to automatically activate or deactivate the ultraviolet irradiator, optimizing disinfection timing based on real-time conditions. This feedback mechanism enables intelligent automatic control without requiring complex manual intervention systems.
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 disinfects surfaces touched by people using ultraviolet rays, ensuring even coverage and immediate effectiveness without the need for disinfectant solutions, thus preventing the spread of bacteria and viruses.
Implementation Method 1
an ultraviolet irradiator, a recognition sensor that recognizes a situation of the inside of the building or the moving body, and a control device configured to automatically control the ultraviolet irradiator
Data Source
AI summary
A disinfection system disinfects an inside of a building or a moving body. The disinfection system includes an ultraviolet irradiator, a recognition sensor that recognizes a situation of the inside of the building or the moving body, and a control device configured to automatically control the ultraviolet irradiator based on the situation of the inside of the building or the moving body, which is recognized by the recognition sensor, to disinfect the inside of the building or the moving body.