Synchronized Control Network Band Segmentation for Factory Data
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Solution Overview
Problem
Conventional control systems for manufacturing devices and production facilities face challenges in efficiently transmitting control system data and information system data on the same network, leading to increased processing loads and reduced precision in predictive maintenance due to limited data handling capacity.
Innovation Solution
A control system with multiple synchronized control devices that assign specific communication bands for control system data, information system data, and additional data, allowing for simultaneous transmission without increasing processing loads by using distinct communication bands and scheduling data transmission accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the control device transmits both control system data and information system data on the same network, then the processing load is concentrated on the control device, but the data handling capacity is exceeded and predictive maintenance precision is reduced
Solution Approach 1:
The patent divides the network communication into separate communication bands: a first communication band for control system data and a second communication band for information system data. This segmentation allows each type of data to be transmitted independently without competing for the same network resources, thereby preventing control device overload while ensuring sufficient data handling capacity for accurate predictive maintenance.
Solution Approach 2:
The patent introduces a new dimension of communication band separation by assigning different frequency or time slots for control system data and information system data transmission. This dimensional separation in the communication spectrum enables simultaneous transmission of both data types without interference, resolving the contradiction between transmission efficiency and data handling capacity.
2Quantity of substance
If the control device handles large amounts of information system data, then the processing load increases, but the control speed and precision are compromised
Solution Approach 1:
The patent segments the data transmission responsibilities by assigning control system data (requiring high speed) to the first communication band and information system data (requiring large bandwidth) to the second communication band. This segmentation ensures that the control device maintains high control speed while the network infrastructure handles the large volume of information system data without impacting control performance.
3Adaptability or versatility
If multiple types of data are transmitted on the same communication band, then the network utilization is improved, but the data transmission reliability and timing precision are reduced
Solution Approach 1:
The patent implements segmentation of communication bands where the first band is dedicated to control system data requiring precise timing, and the second band is dedicated to information system data. This segmentation eliminates bandwidth competition and timing conflicts, ensuring that each data type receives the necessary network resources for reliable and precise transmission while maintaining overall network utilization.
Data Source
AI summary
A first control device connected to a network in which data is updated at every predetermined cycle transmits, at every predetermined cycle, first data used for controlling a manufacturing device or a production facility, using a first communication band among communication bands possessed by the network. A second control device connected to the network and time-synchronized with the first control device transmits second data used for setting and managing the manufacturing device or the production facility, using a second communication band other than the first communication band among the communication bands possessed by the network.