Waste Hopper Height Prediction Using Pattern Matching
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Solution Overview
Problem
Existing methods for predicting waste height changes in waste hoppers of waste incineration plants are inaccurate due to complex incineration time variations based on waste characteristics, leading to potential waste shortages.
Innovation Solution
An information processing device that uses a camera and waste height measuring band to capture and analyze waste height patterns, generating predicted pattern information to accurately determine when waste levels will reach critical thresholds, thereby optimizing waste introduction schedules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If linear approximation method is used to calculate waste introduction time, then calculation simplicity is improved, but prediction accuracy deteriorates
Solution Approach 1:
The patent changes the parameter representation from simple linear time calculation to pattern-based time series prediction. By storing and comparing historical waste height change patterns, the system transforms the calculation approach from direct linear approximation to pattern-matching prediction, thereby improving accuracy while maintaining computational feasibility through pre-processed pattern data.
2Reliability
If more waste is introduced into the waste hopper to prevent waste shortage, then waste supply reliability is improved, but resource waste increases
Solution Approach 1:
The patent implements a feedback mechanism by continuously monitoring actual waste height changes and comparing them with predicted patterns. The system uses this feedback to refine future predictions and adjust waste introduction timing, thereby achieving reliable waste supply without excessive waste introduction. The feedback loop enables progressive improvement of prediction accuracy based on accumulated operational data.
Data Source
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AI summary
The present invention highly accurately predicts a time until next introduction of waste into a waste hopper. The information processing device (1) includes: a measured value obtaining section (11) configured to obtain a measured value of a waste height at predetermined time intervals; and a predicted pattern information generating section (12) configured to generate predicted pattern information which indicates over-time changes in the waste height until next introduction of waste into the waste hopper, the predicted pattern information generating section (12) generating the predicted pattern information on the basis of (i) a measured value obtained during a period from introduction of waste into the waste hopper to the next introduction of the waste and (ii) a past pattern of over-time changes in the waste height in the waste hopper.