Method and cleaning device for cleaning items to be cleaned
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Solution Overview
Problem
Existing commercial dishwashing methods require high energy and chemical additives to maintain hygiene standards, leading to increased operational costs and environmental impact, while lacking precise control over hygiene effects.
Innovation Solution
A method and device that prespecify desired hygiene values, time-resolve record influencing variables such as temperature and disinfectant concentration, and adjust these variables in real-time to achieve the desired hygiene effect, using a cleaning device with sensors and a controller to determine and influence hygiene value shares.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high energy and chemical additives are used to maintain hygiene standards, then hygiene reliability is improved, but operational costs and environmental impact increase
Solution Approach 1:
The system dynamically adjusts process parameters (temperature, chemical concentration, contact time) based on real-time monitoring of hygiene-critical factors. By continuously optimizing these parameters rather than maintaining fixed high levels, the system achieves required hygiene reliability with reduced energy and chemical consumption.
Solution Approach 2:
The patent implements a feedback control system that monitors hygiene-critical parameters and adjusts process conditions accordingly. This closed-loop control ensures hygiene standards are met while avoiding excessive energy and chemical use by only applying necessary treatment levels.
2Reliability
If high energy and chemical additives are used to maintain hygiene standards, then hygiene reliability is improved, but operational costs increase
Solution Approach 1:
The system optimizes chemical concentration parameters based on real-time monitoring data, adjusting dosing levels to achieve minimum effective concentrations rather than using fixed high doses. This reduces chemical consumption while maintaining hygiene reliability.
Solution Approach 2:
Through feedback control, the system monitors hygiene outcomes and adjusts chemical dosing in real-time, preventing both under-dosing (which would compromise hygiene) and over-dosing (which would increase costs and environmental impact).
3Device complexity
If conventional cleaning methods are used, then cleaning process is simple, but precise control over hygiene effects is lacking
Solution Approach 1:
The patent implements comprehensive feedback control that continuously monitors multiple hygiene-critical parameters (temperature, chemical concentration, contact time, flow rates) and adjusts process conditions in real-time. This enables precise control and measurement of hygiene effects through closed-loop control systems.
Solution Approach 2:
The control system integrates multiple monitoring and control functions into a unified platform that handles temperature control, chemical dosing, flow regulation, and hygiene verification. This multi-functional approach achieves precise hygiene control without proportionally increasing overall system complexity.
Data Source
AI summary
A method for cleaning items to be cleaned is disclosed. A cleaning device is used that has at least one cleaning chamber and at least one applicator for applying at least one cleaning fluid to the items to be cleaned in the cleaning chamber. A desired hygiene value is prespecified. The method further includes time-resolved recording of at least two influencing variables which influence hygienization of the items to be cleaned. Hygiene share values are determined from the influencing variables using a prespecified relationship between each influencing variable and the respective hygiene value share of said influencing variable. An expected actual hygiene value at the end of the cleaning from the hygiene value shares is ascertained and compared with the desired hygiene value. At least one of the influencing variables is changed based on the comparison. An inventive cleaning device is also disclosed.