Automation Controller Thermistor Input Integration
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Solution Overview
Problem
Traditional automation controllers are not compatible with thermistor signals, as they require a power source, necessitating an additional device for signal input, which is inefficient.
Innovation Solution
An automation controller system with input terminals for analog, digital, and thermistor signals, where a thermistor can receive power directly, allowing for direct input and using a look-up table or Steinhart-Hart equation to determine temperature from resistance values, enabling efficient integration of thermistor data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional automation controllers are used, then compatibility with standard analog and digital inputs is maintained, but compatibility with thermistor signals is lost requiring additional devices
Solution Approach 1:
The automation controller is designed with multi-functional input terminals that can accept analog signals, digital signals, and thermistor signals through a unified interface. The controller automatically detects and adapts to the input type, eliminating the need for separate dedicated thermistor input devices and reducing overall system complexity while maintaining broad compatibility.
2Reliability
If thermistor signals are input through additional devices, then proper power supply is ensured, but system efficiency is reduced
Solution Approach 1:
The patent combines the thermistor power supply function and signal input function into a single integrated controller unit. The controller provides both the necessary power to the thermistor and processes the thermistor signal directly, eliminating the need for separate intermediary devices and improving signal processing efficiency while maintaining reliable power supply.
3Adaptability or versatility
If multiple input types are supported, then versatility is improved, but input terminal configuration becomes more complex
Solution Approach 1:
The controller employs universal input terminals that can automatically adapt to different sensor types (analog, digital, thermistor) without requiring complex manual configuration. The system includes automatic detection capabilities that identify the connected sensor type and adjust processing parameters accordingly, simplifying operation while maintaining support for multiple sensor types.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and accurate temperature control by allowing direct input of thermistor signals, improving automation controller compatibility and reducing the need for additional devices, thus enhancing process control.
Implementation Method 1
a second input terminal that may receive an input from the analog sensor, the digital sensor or a thermistor
Data Source
AI summary
Components and devices are provided for controlling and monitoring a machine or process using an automation controller that may be capable of receiving inputs from a digital source, an analog source, or a thermistor source. In one embodiment, an automation controller may include first, second, and third input terminals. The first and second input terminals may receive input signals from analog and digital sensors, and the second and third terminals may receive input signals from a thermistor.