Distributed Controller Architecture for Medium Processing Reliability
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Solution Overview
Problem
In medium processing systems, the control structure becomes complex and processing is disrupted when the number of post-processing devices increases, and the system halts if any post-processing device malfunctions.
Innovation Solution
A medium processing system design with multiple delivery and post-processing devices, where each device has dedicated controllers, allowing for continuous processing even if one post-processing device fails, by rerouting the medium to alternative capable devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one controller directly controls multiple post-processing devices, then the control structure remains simple, but the system stops when any post-processing device malfunctions
Solution Approach 1:
The control system is segmented into multiple independent controllers: a first controller manages the first delivery device and first post-processing device, while a second controller manages the second delivery device and second post-processing device. This segmentation allows each controller to operate independently, so that a malfunction in one post-processing device does not halt the entire system. The control functions are divided into modular units that can continue operating autonomously.
Solution Approach 2:
The system changes the control parameter from centralized control to distributed control. By transitioning from a single controller managing all devices to multiple controllers each managing specific devices, the system achieves both improved reliability and maintained simplicity in the control structure.
2Adaptability or versatility
If multiple delivery devices are connected in series, then the system can deliver media to multiple destinations, but the control structure changes considerably
Solution Approach 1:
The delivery system is segmented into independent delivery devices, each with its own controller. The first delivery device and second delivery device operate as separate modules, each capable of independent control. This segmentation enables versatile delivery to multiple destinations while keeping each control module simple and manageable.
Solution Approach 2:
Each delivery device is designed with universal functionality to handle recording media and deliver it to different destinations. The first delivery device can deliver to the first post-processing device, and the second delivery device can deliver to the second post-processing device, providing multi-functional delivery capability without requiring complex inter-device coordination.
Data Source
AI summary
A medium processing system includes: a pre-processing device; a first delivery device that receives a recording medium from the pre-processing device and that delivers the recording medium; a first post-processing device that receives the recording medium delivered from the first delivery device and that performs post-processing on the recording medium; one second delivery device or multiple second delivery devices that are connected in series with the first delivery device, that receive the recording medium delivered from an upstream side in a transport direction of the recording medium, and that deliver the recording medium; a second post-processing device that receives the recording medium delivered from the one second delivery device or the multiple second delivery devices and that performs post-processing on the recording medium; a first controller that is provided at the first delivery device and that communicates with the first post-processing device, the pre-processing device, and the second delivery device that receives the recording medium from the first delivery device, the first controller controlling the first delivery device and the first post-processing device; and a second controller that is provided at the one second delivery device or the multiple second delivery devices, that, for the second delivery device that receives the recording medium from the first delivery device, communicates with the second post-processing device and controls the second delivery device and the second post-processing device that receives the recording medium from the second delivery device, and that, for another one of the multiple second delivery devices that receives the recording medium delivered from the second delivery device, communicates with the second delivery device that delivers the recording medium and with the second post-processing device and controls the other one of the multiple second delivery devices and the second post-processing device that receives the recording medium from the other one of the multiple second delivery devices.