Event-Driven Process Value Transmission With Adaptive Measurement Range
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Solution Overview
Problem
Existing methods for event-oriented transmission of process measured values in process automation require extensive configuration and are inefficient, leading to either loss of important events or excessive data transfer, particularly due to the need for precise setting of measuring ranges and transmission rates for each measurement point.
Innovation Solution
An automation device employs a heuristic method to automatically adjust the measuring range of process measured values based on transmission rates, allowing for self-sensitization and desensitization, thereby simplifying configuration and ensuring that important events are captured without excessive data transfer by dynamically adjusting the measuring range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed measurement range is used for event-driven transmission, then the configuration is simple, but important events may be lost due to insufficient sensitivity to changes
Solution Approach 1:
The measurement range is made dynamic instead of fixed. The automation device automatically adjusts the measurement range based on the current process state and transmission rate, enabling the system to adapt to changing conditions without manual reconfiguration while maintaining reliable event detection.
Solution Approach 2:
The system performs self-configuration by automatically adjusting its own measurement range based on monitored transmission rates and process changes. This eliminates the need for manual engineering configuration while ensuring reliable event detection through adaptive sensitivity adjustment.
2Reliability
If the measurement range is increased to capture all possible events, then event detection accuracy improves, but data transfer volume increases excessively
Solution Approach 1:
The measurement range dynamically adapts to the actual process conditions and transmission rate. When the transmission rate is low, the system expands the measurement range to capture more events. When the transmission rate is already high, the system reduces the measurement range to avoid excessive data transfer, thus balancing event detection accuracy with data volume control.
Solution Approach 2:
The system changes the measurement range parameter based on the monitored transmission rate and process behavior. By adjusting this parameter dynamically, the system optimizes the balance between capturing sufficient events and maintaining acceptable data transfer volumes.
3Quantity of substance
If the measurement range is decreased to reduce data transfer, then data transfer volume decreases, but important events are lost due to reduced sensitivity
Solution Approach 1:
The measurement range is dynamically adjusted based on the current transmission rate and process state. When the transmission rate is already high, the system reduces the measurement range to minimize data transfer. When the transmission rate is low, the system expands the range to ensure important events are captured, thus adaptively balancing data volume and event detection reliability.
4Reliability
If manual configuration of measurement range and transmission rates is performed for each measurement point, then transmission behavior can be optimized, but the configuration effort and complexity increase enormously
Solution Approach 1:
The automation device automatically configures and adjusts its own measurement range and transmission parameters based on monitored process data and transmission rates. This self-configuration capability eliminates the need for manual engineering effort while maintaining optimized transmission behavior adapted to actual process conditions.
Solution Approach 2:
The system continuously monitors the transmission rate and process changes, using this feedback to automatically adjust the measurement range. This closed-loop approach ensures optimal transmission behavior is maintained without manual intervention, as the system adapts based on actual operating conditions.
Data Source
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AI summary
The invention relates to a method for event-oriented transmission of measured process values from at least one measurement device of a control system of a process plant to an operator station server (4) of the control system (3) of the process plant, said method comprising the steps of: a) receiving the measured process values by means of an automation device (9) of the control system (3) of the process plant; b) automatically performing a sensitisation or desensitisation of a measurement range of the measured process values on the automation device (9) of the control system (3) of the process plant, wherein, during the course of the sensitisation or desensitisation and depending on an undershoot of a minimal transmission rate of the measured process values from the measurement device to the automation device (9) or an overshoot of a maximum transmission rate of the measured process values from the measurement device to the automation device (9), the measurement range is automatically decreased during the course of a sensitisation and increased during the course of a desensitisation by the automation device (9) by means of a heuristic method; c) on an event-oriented basis, transmitting the measured process values to the operator station server (4) of the control system (3) of the process plant, an event representing a predetermined change to the measured process values.