Configurable IO Channel System Using Segmented Microcontroller Modules
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Solution Overview
Problem
Conventional techniques for producing configurable IO channels in industrial control systems face challenges due to high electrical interferences and the need for wide-range sensor interfacing, leading to increased design time and complexity.
Innovation Solution
A modular IO module system with programmably configurable digital and analog interfaces, utilizing discrete components and a microcontroller with an IO switching unit, allowing for flexible operation across various sensor types and modes, simplifying wiring and reducing installation costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If configurable IO channels are fully integrated on a single mixed-signal die, then device integration is improved, but design time and complexity increase significantly
Solution Approach 1:
The patent divides the IO channel system into separate functional blocks: analog front-end circuits, digital signal processing units, and microcontroller peripherals are implemented as distinct modules rather than fully integrated on a single die. This segmentation allows each block to be designed and optimized independently, reducing overall design complexity and time while maintaining functional integration through standardized interfaces.
2Adaptability or versatility
If discrete components are used for each sensor interface, then adaptability to different sensor types is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal IO channel architecture where a single configurable interface can handle multiple sensor types (thermocouples, RTDs, current loops, voltage inputs) through programmable configuration. The microcontroller and peripheral circuits are designed to accommodate various sensor interfaces using the same hardware resources, reducing component complexity while maintaining high adaptability across different sensor types.
Data Source
AI summary
The present technology provides for an IO module system (e.g., an industrial control system) that can provide multiple-channel analog and digital interfaces to a number of sensor devices of different types, where each channel of the IO module is programmably configurable as a digital input, a digital output, an analog input, and an analog output. Each sensor interface is implemented on an individual channel basis using discrete components in communication with a microcontroller. The present technology enables the rapid implementation of an IO channel operable in a wide range of voltage and current modes needed for common sensor interfaces.