Redundant PC Equalization Across Legacy and High-Speed Networks
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Solution Overview
Problem
Conventional process control systems in manufacturing plants face downtime challenges when replacing general-purpose PCs due to compatibility issues with new-type PCs, leading to potential data loss and system disruption during the replacement process.
Innovation Solution
Implementing a redundancy method that uses information processing devices with dual communication methods, allowing seamless transition from existing to new devices without downtime by using a first communication method for initial equalization and a faster second method for subsequent operations, ensuring continuous production control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If general-purpose PCs are replaced with new-type PCs to enhance equalization performance, then productivity is improved, but device complexity increases due to compatibility issues requiring dual communication methods
Solution Approach 1:
The information processing device is equipped with multiple communication interface cards supporting different communication methods (first and second communication methods). This multi-functionality allows the device to communicate with both legacy devices using the first method and new-type devices using the second method, thereby supporting hardware upgrades without requiring system-wide compatibility changes and enabling faster equalization operations.
Solution Approach 2:
The system dynamically changes communication parameters by selecting different communication methods based on the type of connected device. When a new-type information processing device is detected, the system switches to the second communication method which enables faster equalization. This parameter change allows the system to optimize performance according to the capabilities of connected devices without compromising compatibility.
2Productivity
If replacement of information processing devices is performed to improve system performance, then productivity is improved, but loss of time occurs due to downtime during replacement
Solution Approach 1:
The system performs preliminary equalization operations using the first communication method before switching to the second communication method. This preliminary action ensures that data is properly synchronized and the system is in a stable state before transitioning to the faster communication method, preventing data loss or system disruption during the replacement process.
Solution Approach 2:
The system maintains continuous equalization operations throughout the device replacement process by supporting multiple communication methods. The first communication method ensures continuity during initial equalization, while the second communication method provides faster operations afterward. This continuity eliminates downtime and ensures uninterrupted production control.
3Reliability
If dual communication methods are implemented for seamless transition, then reliability is improved, but device complexity increases
Solution Approach 1:
The information processing device automatically detects the type of connected device and selects the appropriate communication method without requiring manual configuration. This self-service capability simplifies the user experience despite the underlying complexity of supporting multiple communication methods, as the system autonomously manages the interface selection and switching.
Data Source
Figure 1(a)~1(c)
Figure 2
Figure 3
AI summary
In an information processing device (10), a communication control unit (11) performs communication using a first communication method and using a second communication method that is faster than the first communication method. An equalizing unit (13b) performs an equalization operation using the first communication method with respect to a first information processing device (100) in a redundancy system in which redundancy is achieved between the first information processing device (100) and a second information processing device (100) using the first communication method. After the equalization operation is completed by the equalizing unit (13b), another equalizing unit (13c) performs the equalization operation using the second communication method with respect to a third information processing device (10), and builds a redundancy system in which the concerned information processing device (10) and the third information processing device (10) are used.