Vehicle Cabin UV Lamp Control for Occupancy-Safe Sanitization
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Solution Overview
Problem
Current methods for sanitizing vehicle interiors, such as aircraft cabins, are labor-intensive and do not effectively prevent the spread of pathogens between passengers without risking harm to occupants.
Innovation Solution
A sanitizing system with UV lamps and a control unit that modulates power to UV lamps based on occupancy, using sensors to ensure safe and efficient disinfection of common areas within the vehicle cabin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UV lamps are continuously operated at high power to ensure effective pathogen disinfection in common areas, then sanitization effectiveness is improved, but energy consumption increases
Solution Approach 1:
The system dynamically adjusts UV lamp power output based on real-time occupancy detection. When sensors detect passengers in common areas, the system reduces UV intensity to safe levels; when areas are unoccupied, the system increases power to high levels for effective disinfection, optimizing the balance between sanitization effectiveness and energy consumption
Solution Approach 2:
The system operates UV lamps in periodic cycles, alternating between high-power disinfection mode during unoccupied periods and low-power or off state during occupied periods. This periodic operation ensures continuous sanitization effectiveness while significantly reducing overall energy consumption compared to continuous high-power operation
2Productivity
If UV lamps operate at high intensity to rapidly sanitize common areas, then disinfection speed is improved, but risk of harm to passengers increases
Solution Approach 1:
The system uses occupancy sensors to provide real-time feedback about passenger presence in common areas. This feedback loop enables the control system to automatically adjust UV lamp intensity, ensuring high-power operation only when areas are unoccupied and rapid disinfection is needed, while preventing harmful exposure when passengers are present
Solution Approach 2:
Occupancy sensors act as intermediary devices between the UV lamps and passengers. These sensors detect passenger presence and transmit this information to the control system, which then mediates UV lamp operation to ensure both rapid disinfection capability and passenger safety
3Adaptability or versatility
If manual sanitizing methods are used by crew members, then flexibility in operation is improved, but labor requirements and time consumption increase
Solution Approach 1:
The system performs sanitization operations autonomously without requiring manual intervention by crew members. UV lamps are automatically activated and controlled based on occupancy detection, and the system self-regulates power levels and operation timing, eliminating the need for manual spraying, wiping, or wand-waving activities
4Reliability
If UV lamps are installed in all common areas for continuous disinfection, then pathogen spread prevention is improved, but system complexity and cost increase
Solution Approach 1:
The cabin is segmented into multiple zones with individual UV lamps or lamp groups in each common area. Each zone is independently controlled based on its own occupancy status, allowing targeted disinfection only where needed rather than illuminating the entire cabin, thus reducing overall system complexity while maintaining effective pathogen prevention
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
Reduces pathogen spread through continuous disinfection while minimizing energy consumption and ensuring passenger safety by using UV light at safe wavelengths, allowing rapid sanitization of high-traffic areas.
Implementation Method 1
The UV lamps are configured to receive electrical power from a power source onboard the vehicle and to emit UV light into the internal cabin during a trip of the vehicle
Data Source
AI summary
A sanitizing system includes a plurality of ultraviolet (UV) lamps and a control unit that includes one or more processors. The UV lamps are mounted at various locations within an internal cabin of a vehicle. The UV lamps are configured to receive electrical power from a power source onboard the vehicle and to emit UV light into the internal cabin during a trip of the vehicle. The control unit is operatively connected to the UV lamps and configured to modify the electrical power supplied to one or more of the UV lamps located in a common area of the internal cabin based on occupancy of the common area.