Sheet Conveyer Ultrasonic Detection Merging Amplifiers
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Solution Overview
Problem
Existing sheet conveyer devices require complex configurations to determine the condition of sheets being conveyed, leading to increased manufacturing costs and device volume due to the need for multiple amplifier units and determination units for detecting multiple feeding and sheet presence.
Innovation Solution
A sheet conveyer device with a simplified configuration using a transmitter and receiver to measure ultrasonic waves, determining the presence of zero, one, or multiple sheets based on the intensity of received waves over multiple measurement periods, allowing for accurate detection of sheet conditions without the need for multiple amplifier units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple amplifier units and determination units are used to detect multiple feeding and sheet presence, then detection accuracy is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple amplifier units and determination units into a single integrated determination unit that processes signals for both multiple feeding detection and sheet presence detection. This merging reduces the number of separate components while maintaining the ability to perform both detection functions accurately through a unified signal processing architecture.
Solution Approach 2:
The determination unit is designed to perform multiple functions: it detects both multiple feeding conditions and sheet presence conditions using the same ultrasonic sensor and signal processing chain. By making the determination unit universal, the patent eliminates the need for separate dedicated units for each detection function, thereby reducing device complexity while preserving detection accuracy.
2Reliability
If multiple amplifier units are used for different determination purposes, then detection reliability is improved, but device volume increases
Solution Approach 1:
The patent merges multiple amplifier units into a single determination unit that handles both multiple feeding detection and sheet presence detection. This consolidation reduces the physical volume occupied by separate amplifier circuits and determination units, while the internal architecture maintains reliable detection through integrated signal processing for both functions.
3Measurement precision
If separate determination units are used for multiple feeding and sheet presence detection, then detection precision is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines separate determination units into a single integrated determination unit that performs both multiple feeding detection and sheet presence detection. This reduction in component count directly lowers manufacturing costs associated with producing and assembling multiple separate units, while the integrated design maintains detection precision through unified signal processing algorithms.
Solution Approach 2:
The determination unit is designed as a universal component that handles both detection functions, reducing the total number of specialized components that need to be manufactured and assembled. This universality simplifies the manufacturing process and reduces costs while maintaining the precision required for both types of sheet detection.
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 approach enables accurate detection of sheet conditions, including multiple feeding, with a less complicated configuration, reducing manufacturing costs and device volume while maintaining effective error detection.
Implementation Method 1
a transmitter arranged on a conveyer path to face a first side of a sheet being conveyed in the conveyer path, the transmitter being configured to transmit ultrasonic waves
Implementation Method 2
a receiver arranged on the conveyer path to face a second side of the sheet being conveyed in the conveyer path, the receiver being configured to receive the ultrasonic waves
Data Source
AI summary
A sheet conveyer device, including a transmitter to transmit ultrasonic waves arranged on a conveyer path to face a first side of a sheet; a receiver to receive the ultrasonic waves arranged on the conveyer path to face a second side of the sheet; a measurement unit to measure an intensity of the received ultrasonic waves; and a determination unit to determine a condition of a range in the conveyer path between the transmitter and the receiver among a first condition, wherein no sheet is present in the range, a second condition, in which a sheet is present in the range, and a third condition, in which a plurality of sheets are present in the range, based on intensities of the ultrasonic waves measured by the measurement unit in a plurality of periods separately after transmission of the ultrasonic waves, is provided.