Distributed Lab Automation Modules with Autonomous Control Boards
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Solution Overview
Problem
Centralized automation systems in laboratory diagnostics face challenges such as non-reproducible design, system-wide shutdown due to module failures, and the need for constant operator presence, as they rely on a central control unit for managing all operations and lack independence among modules.
Innovation Solution
A distributed automation system where each module has its own control board, allowing autonomous operation and communication with a central control unit through a CAN network, enabling dynamic specimen management and independent processing without requiring constant operator presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a centralized control unit manages all modules, then system coordination is achieved, but system reliability deteriorates because a single module failure causes the entire system to shut down
Solution Approach 1:
The control system is segmented into multiple independent control units, each managing a specific module. This segmentation allows individual modules to fail without affecting the entire system, as each control unit operates autonomously. The patent implements this by giving each module its own control unit that can independently detect failures and continue operation, thereby improving system reliability while maintaining manageable complexity through modular design.
2Adaptability or versatility
If multiple instances of the same module are added, then system versatility is improved, but design complexity of the central control unit increases significantly
Solution Approach 1:
The control units are designed to be universal and interchangeable, with each control unit capable of managing any module type through standardized communication protocols. This universality allows multiple instances of the same or different modules to be added without requiring redesign of the control architecture. The patent achieves this by implementing a common interface standard that enables any control unit to operate with any module, thereby enhancing versatility while keeping design complexity constant.
3Extent of automation
If a single Graphical User Interface is used for operator control, then ease of operation is maintained, but the need for constant operator presence reduces automation
Solution Approach 1:
The patent introduces an intermediary communication network that connects all control units to a centralized user interface. This intermediary layer allows the single GUI to communicate with multiple independent control units without requiring constant operator presence at the system. The intermediary network enables automated coordination between modules while maintaining centralized monitoring and control capabilities, thereby increasing automation levels while preserving ease of operation through the familiar single interface paradigm.
Data Source
AI summary
A distributed automation apparatus for laboratory diagnostics is described, comprising modules for processing biological products transported on an automatic conveyor and modules for interfacing with analysis devices, both said modules being connected to said automatic conveyor, each of said modules is independent of the other modules, it being provided with its own control board, which allows it to work autonomously and independently of a central control unit which provides a worklist to each node which is dynamically read and updated by said control unit, and said module reading and updating said, worklist.