Industrial I/O Mesh Topology for Modular Controller Decoupling
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Solution Overview
Problem
Existing industrial automation systems face challenges in providing the necessary level of automation while remaining capital-efficient and compatible with modular construction, as they often require dedicated controllers for specific I/O modules and field devices, limiting flexibility and efficiency.
Innovation Solution
A system utilizing a mesh architecture for input/output (I/O) modules that allows for two-way communication between I/O modules and controllers, enabling field devices to connect to the closest I/O module and pair with appropriate controllers, while decoupling I/O electronics from specific controllers, and using standard Ethernet technology for connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated controllers are assigned to specific I/O modules and field devices, then control reliability is improved, but system complexity and capital costs increase
Solution Approach 1:
The patent implements a universal controller architecture where a single controller can serve multiple I/O modules through the mesh network, rather than requiring dedicated controllers for each module. The controller is designed to handle multiple communication channels and I/O interfaces simultaneously, achieving multi-functionality that reduces overall system complexity while maintaining control reliability through the redundant mesh communication paths.
Solution Approach 2:
The patent merges multiple control functions and communication channels into a unified mesh network architecture. Multiple I/O modules and controllers are combined into a single interconnected system where resources are shared, eliminating the need for separate dedicated controller units for each I/O module and reducing capital costs while maintaining system reliability.
2Manufacturing precision
If dedicated controllers are assigned to specific I/O modules, then control precision is improved, but adaptability and flexibility deteriorate
Solution Approach 1:
The patent implements a dynamic controller assignment mechanism where controller-I/O module associations are not fixed but can be dynamically reconfigured through the mesh network. Controllers can be reassigned to different I/O modules based on operational requirements, enabling the system to adapt to changing process conditions while maintaining precise control through the dynamic reconfiguration capability.
Solution Approach 2:
The universal controller design enables a single controller to perform multiple control functions across different I/O modules, providing both the precision needed for specific control tasks and the flexibility to adapt to different operational scenarios through software configuration rather than hardware reconfiguration.
3Stability of the object's composition
If traditional I/O architecture is used with dedicated controllers, then system stability is improved, but ease of manufacture and deployment deteriorate
Solution Approach 1:
The patent enables pre-fabrication of I/O modules with integrated communication interfaces and mesh network capabilities. These modules can be manufactured, tested, and configured in advance at a factory setting, then deployed to the field where they automatically integrate into the mesh network, significantly reducing on-site installation complexity and deployment time while maintaining system stability through consistent factory-tested configurations.
Solution Approach 2:
The patent replaces traditional mechanical wiring and physical connections with wireless or network-based mesh communication. This substitution eliminates complex physical wiring requirements, reduces on-site installation efforts, and simplifies deployment while maintaining stable communication through the robust mesh network protocol that provides automatic routing and fault tolerance.
4Loss of energy
If field junction boxes are removed and I/O is deployed in the field, then capital efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments the I/O functionality into modular, self-contained I/O modules that can be independently deployed in the field without requiring centralized junction boxes. Each module is designed with integrated communication capabilities and can operate autonomously on the mesh network, distributing the functionality across multiple simple modules rather than requiring one complex centralized system, thereby improving capital efficiency while managing complexity through standardization.
Solution Approach 2:
The I/O modules are designed with universal interfaces and standardized communication protocols that enable them to perform multiple functions and interoperate with different controllers through the mesh network. This universality allows simpler, more cost-effective modules to replace expensive dedicated I/O systems while maintaining the required functionality through software-based control rather than hardware specialization.
Data Source
AI summary
An industrial automation system employing a mesh topology of input/output allows flexibility in pairing field devices and controllers though the I/O mesh. Field devices can be connected to the geographically closest I/O module channel without regard to the location of the necessary controller. Modular prefabrication and deployment of the I/O modules becomes less complex and less time consuming thereby reducing costs.