Industrial Device Communication System with Dynamic Switch Segmentation
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Solution Overview
Problem
Industrial device communication systems face challenges in preventing data mixture between communication groups, leading to increased communication amounts and potential conflicts, and require complex wiring configurations for each group.
Innovation Solution
The system employs switches and switch controllers to dynamically connect and disconnect inter-group communication lines based on predefined periods, allowing communication groups to operate independently and simplifying the communication network by eliminating the need for separate wires for each group.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate wires are used for each communication group, then data mixture between groups is prevented, but device complexity and wiring complexity increase
Solution Approach 1:
The communication system is segmented into multiple communication groups that can be isolated when needed. Each group can operate independently with its own master and slaves, and the segmentation is enforced through switch control that disconnects inter-group communication lines during periods when groups should be isolated.
Solution Approach 2:
The wiring configuration is made dynamic through the use of switches that can change the connectivity state of communication lines. Instead of permanent separate wiring for each group, the switches dynamically connect or disconnect groups based on the current communication period and group assignments, reducing overall wiring complexity while maintaining data separation when required.
2Device complexity
If multiple communication groups share the same communication line, then wiring is simplified, but data mixture and communication conflicts occur
Solution Approach 1:
The communication system employs periodic action by dividing time into multiple communication periods, where different communication groups are assigned to different periods. During each period, only the assigned group is permitted to communicate, while switches disconnect other groups from the shared communication line. This temporal separation prevents data mixture while allowing multiple groups to share the same physical wiring.
3Productivity
If communication groups operate simultaneously on shared lines, then processing efficiency increases, but communication conflicts and data mixture increase
Solution Approach 1:
The system implements periodic time-division multiplexing where communication periods are assigned to different groups sequentially. This allows efficient utilization of the communication infrastructure by ensuring that when a group is active, it has exclusive access to the shared lines, preventing conflicts and data mixture while maintaining high processing efficiency through structured parallel operation opportunities.
Data Source
AI summary
An industrial device communication system comprising: industrial devices that function as communication masters; industrial devices that function as communication slaves that receive control data from the industrial devices that function as communication masters; communication lines that communicably connect the industrial devices to one another; one or more switches for causing a communication group including the industrial devices that function as communication masters and the industrial devices that function as communication slaves to communicate independently from one or more other communication groups; and one or more switch controllers that control the one or more switches, causing the switches to switch between a state in which an inter-group communication line present between the communication group and the one or more other communication groups is disconnected, and a state in which the disconnected inter-group communication line is connected, according to the communication group that independently communicates in each of periods.