DHCPv6 Configuration Data Distribution Unit for Industrial Automation
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Solution Overview
Problem
Industrial automation systems face disruptions and inefficiencies due to interruptions in communication connections, particularly with time-critical processes, where conventional configuration methods for communication devices and routers are inadequate, leading to potential production stoppages and system faults.
Innovation Solution
A method and configuration data distribution unit utilizing two DHCPv6 configuration servers to automatically configure communication devices with IPv6 addresses and prefixes, separating terminal and router configurations, and managing associations for validity periods to ensure consistent and reliable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional configuration methods are used for communication devices in industrial automation systems, then configuration simplicity is maintained, but communication interruptions and system reliability deteriorate
Solution Approach 1:
The patent segments the configuration system into two distinct DHCPv6 configuration servers: a first configuration server for terminal devices and a second configuration server for router devices. This segmentation allows each server to specialize in configuring specific device types, preventing configuration conflicts and improving communication reliability while maintaining manageable complexity through clear functional separation.
Solution Approach 2:
The configuration data distribution unit acts as an intermediary that receives configuration requests from communication devices, determines the device type (terminal or router), and forwards requests to the appropriate configuration server. This intermediary mechanism ensures that configuration requests are routed correctly, preventing communication interruptions caused by misconfiguration while maintaining system simplicity through automated device classification.
2Productivity
If automatic configuration is implemented for all communication devices, then configuration efficiency is improved, but configuration accuracy and consistency worsen due to inconsistent control information
Solution Approach 1:
By dividing the automatic configuration system into two specialized configuration servers, the patent maintains high configuration efficiency through automation while improving consistency. Each server is dedicated to specific device types (terminals or routers), ensuring that configuration information is consistent and appropriate for each device category without the conflicts that arise from a single general-purpose configuration system.
Solution Approach 2:
The patent applies local quality by providing different configuration information from different servers based on the specific needs of terminal devices versus router devices. Each configuration server provides locally optimized configuration data tailored to its designated device type, ensuring configuration accuracy and consistency while maintaining high automated configuration efficiency.
3Reliability
If separate configuration servers are used for terminals and routers, then configuration reliability is improved, but system complexity increases
Solution Approach 1:
The configuration data distribution unit serves as an intermediary that manages the complexity of having two configuration servers. It automatically determines device type and routes requests to the appropriate server, shielding end devices from the underlying system complexity while maintaining high configuration reliability through specialized server handling. This intermediary approach allows the system to benefit from separate configuration servers without exposing the increased structural complexity to users.
Data Source
AI summary
A configuration data distributing unit that stores an assignment of a first communication device to an address configuration server upon receiving an address configuration request from the first communication device of an industrial automation system, the assignment having a specifiable validity period, and forwards all configuration requests of the first communication device to the address configuration server during the validity period using the stored assignment, whereas the configuration data distributing unit stores an assignment of a second communication device to a prefix configuration server upon receiving a prefix delegation request of the second communication device with a router function, the assignment having a specifiable validity period, and forwards all configuration requests of the second communication device to the prefix configuration server during the validity period using the stored assignment.