Distributed Logic Control with Self-Setup Intelligent Nodes
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Solution Overview
Problem
Traditional programmable logic controller (PLC) systems are costly, not scalable, difficult to implement, and prone to single-point failures due to their centralized control architecture, which limits their effectiveness in managing large systems with numerous controlled elements.
Innovation Solution
A distributed logic control apparatus utilizing a network of enhanced intelligent devices with processors and algorithms that enable self-setup and implicit/explicit cross-signaling, allowing each device to control its portion of the system and cooperate with others, thereby distributing control and reducing reliance on a single central controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a centralized PLC is used to control all elements, then control capability is sufficient, but cost increases and scalability decreases
Solution Approach 1:
The control system is divided into multiple intelligent devices, each responsible for controlling specific controlled elements. Instead of one centralized PLC managing all elements, the functionality is segmented across multiple distributed intelligent devices that communicate via a data network, reducing the burden on each individual device and improving scalability.
Solution Approach 2:
The control architecture transitions from a single-dimensional centralized structure to a multi-dimensional distributed network structure. Intelligent devices are arranged in a network topology where each device can independently process control logic while communicating with others, adding spatial and functional dimensions to the control system.
2Reliability
If a centralized PLC is used, then control of all elements is achieved, but the system becomes difficult to modify and implement
Solution Approach 1:
Each intelligent device contains its own processor and control algorithms, allowing independent configuration and modification. When system changes are needed, only the affected intelligent devices need to be updated rather than reprogramming the entire centralized PLC, significantly improving ease of modification and implementation.
Solution Approach 2:
The intelligent devices automatically detect and adapt to system changes through their embedded algorithms. Each device independently manages its own configuration and can autonomously adjust to modifications in the controlled elements or other devices, reducing the need for manual reprogramming and manual setup.
Data Source
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AI summary
A distributed logic control apparatus is usable to control a system and includes a plurality of enhanced intelligent devices and a network protocol control that are connected with a data network. The intelligent devices each have a processor apparatus and an algorithm operable thereon that enables each intelligent device to control a corresponding part of the system. Other algorithms on the intelligent devices provide an advantageous setup operation that enables the intelligent devices to cooperate with one another in a self-setup operation.