UV Lamp Control Device for Adaptive Disinfection Time
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Solution Overview
Problem
Laboratory UV irradiation devices face challenges in maintaining adequate disinfection with increasing UV emitter service life, leading to unnecessary energy consumption and premature lamp replacement, as the intensity of UV radiation decreases over time, requiring extended disinfection times or early lamp replacement.
Innovation Solution
The control device in the laboratory device automatically adjusts the disinfection time based on the operating time of the UV emitter, compensating for the decrease in radiation intensity by extending the irradiation time, ensuring consistent irradiation without additional user effort or energy wastage, and providing a phased operation to optimize UV lamp life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UV lamp operates for a longer duration to compensate for decreasing radiation intensity, then the disinfection effectiveness is maintained, but the energy consumption increases significantly
Solution Approach 1:
The control device dynamically adjusts the irradiation duration based on the actual operating time of the UV lamp. The system transitions from a static, fixed irradiation time to a dynamic, adaptive irradiation time that changes as the lamp ages, optimizing the balance between disinfection effectiveness and energy consumption.
Solution Approach 2:
The control device incorporates a feedback mechanism that monitors the operating time of the UV lamp and uses this information to adjust the irradiation duration. The control function continuously receives feedback about the lamp's age and automatically modifies the disinfection parameters to maintain effectiveness while minimizing energy waste.
2Reliability
If the UV lamp is replaced early to ensure adequate radiation intensity, then the disinfection reliability is maintained, but the resource waste and costs increase
Solution Approach 1:
The control device automatically manages the UV lamp replacement decision-making process. The system monitors the lamp's operating time, calculates the appropriate irradiation duration based on the lamp's age, and alerts the user when replacement is actually necessary. This self-service approach eliminates premature replacements and optimizes resource utilization.
Solution Approach 2:
The system changes the operational parameters (irradiation duration) based on the lamp's age rather than replacing the lamp based on fixed time intervals. By adjusting the duration parameter dynamically, the system extends the usable life of the UV lamp while maintaining disinfection effectiveness, thereby reducing resource waste.
3Reliability
If the disinfection time is extended throughout the night to ensure adequate disinfection, then the disinfection thoroughness is improved, but the damage to laboratory equipment components increases
Solution Approach 1:
The system dynamically calculates the minimum necessary irradiation duration based on the UV lamp's actual radiation intensity at any given operating time. Rather than using a fixed extended duration, the control device adjusts the irradiation time to the precise amount needed for effective disinfection, minimizing unnecessary UV exposure to equipment components.
4Reliability
If the user repeatedly checks and adjusts the disinfection time as the UV lamp operating time increases, then the disinfection adequacy is maintained, but the user effort and complexity increase considerably
Solution Approach 1:
The control device performs all monitoring, calculation, and adjustment operations automatically without requiring user intervention. The system monitors the UV lamp's operating time, applies the appropriate control function, and adjusts the irradiation duration automatically. The user simply needs to press a single button to initiate the disinfection process, eliminating repeated manual adjustments.
Solution Approach 2:
The manual process of repeatedly checking and adjusting disinfection time is replaced by an automated electronic control system. The control device uses electronic sensors and processors to monitor lamp operating time and automatically calculate the appropriate irradiation duration, substituting manual mechanical adjustment with automated electronic control.
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
This solution ensures effective disinfection without premature UV emitter replacement and reduces energy consumption by dynamically adjusting the disinfection time according to the UV emitter's service life, optimizing the UV lamp's lifespan and maintaining reliable disinfection until lamp replacement is necessary.
Implementation Method 1
UV radiation, especially UV-C radiation, preferably with a wavelength of 254 nm, is suitable for killing bacteria, viruses, spores, and yeasts
Data Source
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AI summary
The invention relates to a laboratory device (1) comprising a UV irradiation device (2) with at least one UV lamp (20) for carrying out a disinfection process, and a control device (3) for controlling the UV lamp (20). The control device (3) is configured to specify a duration (t) during which the UV lamp (20) is operated during the disinfection process. The control device (3) is configured to specify the duration (t) using a stored control function as a function of the operating time (d) of the UV lamp (20), such that the duration (t) increases with increasing operating time (d). The invention further relates to a method for operating such a laboratory device (1).