Trend Curve Display with Interpolation for Process Data Gaps
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Solution Overview
Problem
In process engineering, the infrequent updating of process values due to event-oriented transmission and connection failures leads to operators working with 'old' data, compromising the reliability of operation and monitoring, especially in telecontrol systems where not all changed values are transferred, resulting in incomplete and outdated trend curves.
Innovation Solution
A computer-implemented method that involves receiving measured values from technical objects, interpolating values when updates are unavailable, generating and transmitting actual and interpolated trend profiles to operators, and visually presenting these for continuous monitoring and correction, with the ability to integrate actual values once they become available.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If event-driven transmission is used to reduce data transmission frequency, then energy consumption and network load are reduced, but the reliability and continuity of trend curve data deteriorate
Solution Approach 1:
The system performs preliminary actions by storing historical process data locally in the operator station before it becomes critical. When data transmission is interrupted, the operator station can retrieve and display previously stored data, ensuring continuity of the trend curve without requiring frequent real-time transmissions.
Solution Approach 2:
The patent introduces an intermediary mechanism - a local data storage buffer in the operator station that mediates between the automation station and the display system. This buffer stores process data locally, allowing the trend curve to continue displaying during transmission interruptions, thus maintaining reliability while allowing infrequent updates.
2Productivity
If remote control systems transmit only changed values in packets, then transmission efficiency is improved, but the completeness and timeliness of process data deteriorates
Solution Approach 1:
The system pre-stores complete process data packets locally in the operator station before transmission interruptions occur. This preliminary storage ensures that even if only changed values are transmitted later, the operator station already has the complete data set needed to reconstruct accurate trend curves without information loss.
3Stability of the object's composition
If connection outages occur, then system robustness is improved, but the availability of real-time process data deteriorates
Solution Approach 1:
The patent introduces a local data storage buffer as an intermediary between the automation station and the display system. During connection outages, this buffer provides stored process data to maintain trend curve display, ensuring data availability remains high even when the connection is unstable or interrupted.
Solution Approach 2:
The system prepares cushioning data by pre-storing process values locally in the operator station. This beforehand cushioning creates a data reserve that protects against connection outages, allowing the trend curve to continue displaying uninterrupted during periods when the connection is unavailable.
4Reliability
If measuring points fail, then system fault tolerance is improved, but the ability to derive operating instructions deteriorates
Solution Approach 1:
When a measuring point fails, the local data storage buffer in the operator station acts as an intermediary, providing previously stored data from that measuring point. This allows the trend curve to continue displaying information from the failed measuring point, enabling operators to maintain situational awareness and derive operating instructions even during measurement failures.
Data Source
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AI summary
A computer-implemented method for displaying operator information in the context of a technical system is proposed, which has at least one Operator Station Server (2) and one Operator Station Client (3). The method comprises: a) receiving measured values from at least one technical object (8, 9) of the technical system by means of the Operator Station Server; b) continuously generating an actual trend of the measured value, wherein, in the event that no measured value can be received from the at least one technical object (8, 9), the measured value is interpolated to generate an interpolated trend until a measured value can be received again; c) transmitting the actual and the interpolated trend from the Operator Station Server (2) to the Operator Station Client (3).d) Visual presentation of the actual and the interpolated trend to an operator of the technical system, preferably in a common trend diagram (13) .;