Sheet Handling Apparatus Multi-CPU Control Architecture
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Solution Overview
Problem
Existing sheet handling apparatuses face challenges in managing multiple CPUs for real-time destination information control, leading to malfunctions like 'interfusion' of sheets, inability to track classification information, and inadequate maintenance due to single CPU control, which limits their adaptability to large systems with multiple conveyance routes.
Innovation Solution
The apparatus is designed to execute shift processing for classification information using multiple CPUs, allowing for distributed control across modules, enabling accurate tracking and sorting of sheets through a networked system that includes multiple sensors and CPUs, ensuring immediate and precise control of destination information and classification data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a single CPU is used to control destination information for immediate response, then response speed is improved, but the system cannot handle diversified sheet types and becomes inadequate for large systems with multiple conveyance routes
Solution Approach 1:
The control system is divided into multiple CPUs, each responsible for specific modules or conveyance routes. This segmentation allows the system to maintain fast local responses while handling diversified sheet types across multiple processing units, resolving the contradiction between response speed and system adaptability.
2Adaptability or versatility
If multiple CPUs are used to handle diversified sheet types and large systems, then system adaptability is improved, but control coordination becomes complex and malfunction detection becomes difficult
Solution Approach 1:
The system implements feedback mechanisms where each CPU monitors and reports the status of sheets under its control to a central coordination unit. This feedback loop enables complex multi-CPU systems to maintain coordination while providing malfunction detection capabilities, resolving the contradiction between system adaptability and control complexity.
3Device complexity
If only destination information is tracked without classification information, then control simplicity is maintained, but malfunction like 'interfusion' cannot be detected and maintenance cannot be optimized
Solution Approach 1:
The system performs preliminary classification of sheets by type and quality before conveyance, recording classification information alongside destination information. This preliminary action enables later detection of malfunctions such as interfusion and optimizes maintenance by providing complete sheet attribute data, resolving the contradiction between information tracking complexity and malfunction detection capability.
Data Source
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AI summary
A sheet handling apparatus includes a first module arranged along a sheet conveyance route from the upstream to the downstream thereof, and a second module arranged adjacent to the first module, wherein the first module including a take-out part to take out sheets one by one from a bundle of sheets fed into a supply part; a first conveyance route to convey the taken out sheets with the take-out part; a discriminating device to discriminate category of the sheets conveyed along the first conveyance route; and a first control part to transmit destination information and category information of the sheet discriminated by the discriminating device and to execute a conveyance control to the sheet residing along the first conveyance route, and wherein the second module including: a second conveyance route to convey further the sheets conveyed from the first module; a first stacking device to stack the sheet conveyed along the second conveyance route based on the destination information and category information received from the first module in each category ; and a second control part to execute a conveyance control to the sheet residing along the second conveyance route, and to transmit information of the number of sheets in each category stacked in the first stacking device, wherein the first control part is configured to execute a cross-check whether the information of the number of sheets in each category received from the second control part matches with the information of the number of sheets transmitted to the second control part or not.