Predictive Refill Indicator for Random-Use Dispensing Systems
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Solution Overview
Problem
Existing dispensing systems fail to accurately predict and indicate when refill containers need replacement, leading to unnecessary checks and increased service time and costs due to their inability to account for varying usage patterns.
Innovation Solution
A dispenser system that includes a controller, timer, actuator, and indicator, which calculates an average usage value by tracking the amount of material dispensed over time, allowing for the determination of a remaining service interval and providing an indication when the product will need replenishing before complete depletion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed recording indicators are used to trigger warnings, then the device complexity is reduced, but the measurement precision of product depletion prediction deteriorates
Solution Approach 1:
The patent applies dynamics by transitioning from static fixed recording indicators to a dynamic system that continuously monitors actual dispensing events. The controller tracks each dispensing occurrence and calculates usage patterns in real-time, allowing the depletion prediction to adapt to varying usage rates while maintaining reasonable device complexity through microcontroller-based computation.
Solution Approach 2:
The patent replaces mechanical counting mechanisms with electronic sensing and computation. Instead of physical counters that require manual resetting and fixed thresholds, the system uses electronic sensors to detect dispensing events and a microcontroller to compute depletion predictions based on actual usage patterns, significantly improving measurement precision.
2Reliability
If service providers check each dispenser frequently to ensure adequate product levels, then the reliability of product availability is improved, but the loss of time and increased service costs worsen
Solution Approach 1:
The patent applies preliminary action by predicting product depletion before it actually occurs. The system calculates the anticipated depletion date based on current usage patterns and alerts service providers in advance, allowing them to schedule replacements proactively rather than performing frequent routine checks, thus reducing service time while maintaining reliability.
Solution Approach 2:
The patent implements feedback by continuously monitoring actual dispensing events and comparing them against the depletion prediction model. When usage patterns change, the system updates the predicted depletion date, providing ongoing feedback to service providers about when intervention will be needed, enabling efficient scheduling without frequent unnecessary visits.
3Ease of operation
If service providers replace product based on fixed schedules, then the ease of operation is improved, but the loss of substance worsens due to unnecessary replacement
Solution Approach 1:
The patent applies dynamics by replacing fixed static schedules with dynamic predictions based on actual usage patterns. The system continuously adapts the predicted depletion date according to measured dispensing frequency, allowing service providers to optimize replacement timing to match actual consumption, thereby reducing unnecessary product waste while maintaining operational simplicity through automated calculations.
Data Source
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AI summary
A method and device for indicating whether a dispensable product will require refilling prior to the next scheduled service interval includes tracking the amount of use over a first interval, and calculating a frequency based from the use over the first interval. The quantity remaining is compared with the required amount, which is the product of the number of weeks in the service interval and the calculated frequency. Thus, when the quantity remaining is less that the required amount, a warning will be provided to indicate that the dispensing product should be replaced, as it will be empty before the next service interval.