Elevator UV Disinfection System with Intensity Feedback Control
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Solution Overview
Problem
Elevators pose a high-risk area for infectious diseases due to close contact among users, and existing ultraviolet disinfecting systems face challenges with inconsistent ultraviolet ray intensity, leading to inefficient disinfection and potential exposure of cleaning staff to infection sources.
Innovation Solution
A disinfection system integrated with an ultraviolet disinfecting light, a controlling device, and an ultraviolet detecting device that adjusts the ultraviolet radiation dose based on detected intensity and occupancy, ensuring effective disinfection without risking exposure to humans or animals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ultraviolet disinfecting light is used to disinfect the elevator space, then manual cleaning labor is reduced, but the ultraviolet ray intensity becomes insufficient leading to poor disinfection effect
Solution Approach 1:
The patent applies feedback control by using an ultraviolet detecting device to monitor the intensity of ultraviolet rays in real-time. The detecting device sends signals to the controlling device, which then adjusts the ultraviolet disinfecting light's operation accordingly. This closed-loop feedback mechanism ensures that the ultraviolet ray intensity remains sufficient for effective disinfection while automating the process.
Solution Approach 2:
The patent changes the operating parameters of the ultraviolet disinfecting light based on detected intensity levels. When the ultraviolet detecting device measures insufficient intensity, the controlling device adjusts parameters such as turning on additional ultraviolet lights or extending the disinfection time, thereby maintaining effective disinfection conditions without manual intervention.
2Extent of automation
If ultraviolet disinfecting light is installed in the elevator, then manual cleaning is eliminated, but users cannot know whether the ultraviolet ray intensity is sufficient
Solution Approach 1:
The patent implements feedback by equipping the system with an ultraviolet detecting device that continuously monitors ultraviolet ray intensity and communicates this information to the controlling device. This provides real-time data about disinfection quality, allowing the system to automatically adjust and ensuring that sufficient disinfection is achieved without requiring user knowledge or manual checking.
Solution Approach 2:
The system performs self-monitoring and self-adjustment through the ultraviolet detecting device and controlling device. The detecting device automatically measures the ultraviolet ray intensity, and the controlling device automatically adjusts the disinfecting light operation based on these measurements, eliminating the need for user intervention or manual verification of disinfection quality.
3Reliability
If cleaning staff manually wipe the elevator interior with disinfectant, then disinfection is performed, but labor cost increases and cleaning staff face infection risk
Solution Approach 1:
The patent replaces the mechanical manual cleaning system with an automated ultraviolet disinfection system. Instead of cleaning staff physically wiping surfaces with disinfectant, ultraviolet lights emit ultraviolet rays to disinfect the elevator space automatically. This substitution eliminates manual labor and associated risks while maintaining effective disinfection.
Solution Approach 2:
The ultraviolet disinfection system operates autonomously without requiring human intervention. The controlling device automatically controls the ultraviolet lights based on signals from the ultraviolet detecting device, enabling the system to perform disinfection tasks independently and eliminating the need for cleaning staff.
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 enhances disinfection efficacy by increasing ultraviolet radiation when intensity is insufficient and automatically turns off the light when people are present, ensuring safe and efficient disinfection of elevator spaces.
Implementation Method 1
The ultraviolet detecting device is signally connected to the controlling device and is for detecting an intensity of the ultraviolet rays emitted by the ultraviolet disinfecting light
Implementation Method 2
The ultraviolet disinfecting light can be turned on or off under control and emits ultraviolet rays to the space when it is turned on
Data Source
AI summary
A disinfection system includes an ultraviolet disinfecting light, a controlling device, and an ultraviolet detecting device. The ultraviolet disinfecting light can be turned on or off under control. The controlling device controls the ultraviolet disinfecting light to be turned on or off. The ultraviolet detecting device is signally connected to the controlling device and is for detecting an intensity of the ultraviolet rays emitted by the ultraviolet disinfecting light. The controlling device controls the ultraviolet disinfecting light to increase an ultraviolet radiation dose of the ultraviolet rays emitted by the ultraviolet disinfecting light after the ultraviolet disinfecting light is turned on and the intensity of the ultraviolet rays is less than a predetermined intensity. An elevator equipment includes a car, a lift control device, and the disinfection system. In this way, the space can be disinfected with the ultraviolet rays to avoid insufficient disinfection effect.