Adaptive Paper Conveyance Sound Detection
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Solution Overview
Problem
Existing paper conveying apparatuses face difficulties in accurately determining abnormalities during paper conveyance, often leading to false alarms or missed detections due to the type of paper being conveyed.
Innovation Solution
A paper conveying apparatus equipped with a sound generator and sound signal detectors that adapt their detection methods based on the first sound signal generated, allowing for precise abnormality detection by analyzing the sound patterns and frequencies to differentiate between normal and abnormal conveyance conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed detection method is used for all paper types, then the device complexity is reduced, but the measurement precision of abnormality detection deteriorates
Solution Approach 1:
The patent implements dynamic adjustment of detection methods based on paper type identification. The system switches between different detection algorithms (e.g., sound level threshold detection, sound pattern recognition) depending on the identified paper characteristics, allowing optimal detection precision for each paper type while managing complexity through conditional logic rather than multiple fixed systems
Solution Approach 2:
The system changes detection parameters such as threshold values, frequency ranges, and detection sensitivity based on the identified paper type. By adjusting these parameters dynamically, the system achieves high measurement precision across different paper types without requiring fundamentally different detection mechanisms, thus balancing precision with manageable device complexity
2Measurement precision
If paper type-specific detection methods are implemented, then the measurement precision improves, but the ease of operation deteriorates
Solution Approach 1:
The system automatically identifies paper type and selects appropriate detection methods without requiring user intervention. The automatic paper type recognition and adaptive detection method selection eliminates the need for users to manually configure detection parameters, maintaining ease of operation while achieving high precision through paper-specific detection strategies
Solution Approach 2:
The system performs preliminary paper type identification before executing abnormality detection. By pre-classifying the paper type and preparing the appropriate detection method in advance, the system ensures high measurement precision is achieved automatically without complicating the user interface or requiring users to understand different detection methodologies
3Adaptability or versatility
If adaptive detection methods are used, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The patent implements a universal detection system that can handle multiple paper types and abnormality conditions through a single adaptive framework. The system uses a unified architecture with configurable parameters and modular detection algorithms that can be adjusted based on paper type, achieving high adaptability without requiring separate dedicated systems for each paper type or condition
Solution Approach 2:
The system achieves adaptability across different paper types by changing detection parameters (thresholds, frequency bands, sensitivity levels) rather than changing the fundamental detection architecture. This parameter-based adaptation allows the system to be versatile and handle various paper types while maintaining relatively simple device complexity, as the core detection mechanism remains unchanged
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
The apparatus effectively determines whether an abnormality has occurred during paper conveyance, reducing false alarms and improving accuracy by adjusting detection methods based on the specific sound signals generated by different paper types.
Implementation Method 1
a sound generator for generating a paper sound by contacting a paper
Implementation Method 2
a first sound signal generator for generating a first sound signal corresponding to the paper sound
Data Source
AI summary
There are provided a paper conveying apparatus, an abnormality detection method and a computer-readable, non-transitory medium which can precisely determine whether an abnormality has occurred when paper is conveyed. The paper conveying apparatus includes a sound generator for generating a paper sound by contacting a paper, a first sound signal generator for generating a first sound signal corresponding to the paper sound, and an abnormal conveyance detector for determining whether an abnormal conveyance has occurred when the paper is being conveyed according to a detection method, wherein the abnormal conveyance detector is configured to change the detection method based on the first sound signal.