Galvanic Isolation Signal Control for Process Measurement
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Solution Overview
Problem
Existing measuring devices for process variables in explosive areas face inefficiencies in energy and data transmission due to fixed signal parameters, leading to suboptimal performance and prolonged startup times, as they lack adaptive control over energy and data transmission to match current requirements.
Innovation Solution
Incorporating microcontrollers to dynamically adjust signal parameters such as frequency, pulse duration, and pause duration to optimize energy and data transmission efficiency, allowing the measuring device to adapt to current operating states and environmental conditions, thereby enhancing energy efficiency and predictive maintenance capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If fixed signal parameters are used for energy and data transmission, then the device structure remains simple, but the energy transmission efficiency is suboptimal and cannot adapt to changing requirements
Solution Approach 1:
The patent implements dynamic signal parameter adjustment by replacing fixed analog components with a microcontroller that can vary signal characteristics (frequency, pulse duration, pause duration) based on real-time operating conditions. This allows the energy transmission efficiency to be optimized continuously while adapting to different operational states, resolving the contradiction between fixed simplicity and adaptive efficiency.
Solution Approach 2:
The invention changes the physical parameters of the transmission signal (frequency, pulse duration, pause duration) to optimize energy transmission efficiency. By dynamically adjusting these parameters through software control rather than hardware redesign, the system achieves adaptive optimization without proportionally increasing device complexity.
2Loss of time
If analog components are used for signal transmission control, then the device structure is simple, but the startup time is prolonged due to inability to detect and respond to limit conditions
Solution Approach 1:
The patent implements feedback control by using the microcontroller to monitor operating parameters in real-time and adjust signal parameters accordingly. During startup, the system can detect when specified limits are exceeded and respond immediately, eliminating the prolonged startup times associated with passive analog components that lack detection and response capabilities.
Solution Approach 2:
The microcontroller-based system performs self-diagnosis and self-adjustment during operation, including detecting startup conditions and automatically configuring optimal signal parameters. This self-service capability reduces startup time and eliminates the need for external intervention or complex manual configuration.
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
The solution enables flexible and efficient energy and data transmission, reducing startup times and improving the overall performance and reliability of the measuring device by continuously monitoring and optimizing signal parameters, including predictive maintenance through self-diagnostic capabilities.
Implementation Method 1
The data is then transmitted from the first electronic unit to the second electronic unit by modulating the frequency and/or amplitude of the energy transmission
Data Source
Figure 1~2
AI summary
The invention relates to a measuring device for determining and/or monitoring at least one process variable, comprising a sensor unit, a first electronics unit (5), which is associated with an energy supply unit and which comprises a first microcontroller (1), and a second electronics unit (6), which is associated with the sensor unit and comprises a second microcontroller (2), and which is connected to the first electronics unit (5) by way of a galvanically separate transmission unit (4) for energy and data transmission. According to the invention the first microcontroller (1) generates at least one signal (S1, S2) variable in at least one characteristic and supplies it to the transmission unit (4), the signal (S1, S2) controls the energy and data transmission, the first microcontroller (1) and/or the second microcontroller (2) determine/determines at least one current operating parameter, and the first microcontroller (1) adjusts at least one characteristic of the signal (S1,S2) on the basis of the operating parameter.