Flow Meter Status Logging for Measurement Reliability Assessment
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Solution Overview
Problem
Existing flow measuring devices lack the ability to provide comprehensive and timely documentation of errors and malfunctions during measurement processes, making it difficult to assess the reliability of measured values and identify recurring issues.
Innovation Solution
A method that includes a diagnostic unit generating status messages for the flow measuring device, storing these messages cumulatively in a storage unit during the measurement process, and assigning them to standardized categories, allowing for chronological documentation and easy identification of errors, even after the malfunction has resolved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If error messages are only output immediately when errors occur, then the device operation is simple, but the ability to trace recurring errors and assess measurement reliability is insufficient
Solution Approach 1:
The patent applies preliminary action by storing status messages in the memory unit during the measurement process before the measurement is completed or before errors are fully resolved. This allows the complete error history to be available for later evaluation, enabling comprehensive assessment of measurement reliability without adding complex real-time analysis systems.
Solution Approach 2:
The patent introduces a memory unit as an intermediary between the diagnostic unit and the evaluation process. The memory unit stores status messages and serves as a buffer that allows comprehensive error documentation without requiring complex real-time processing or additional hardware for error tracing.
2Loss of information
If comprehensive error documentation is implemented, then error tracing capability is improved, but the device structure becomes more complex
Solution Approach 1:
The patent extracts the error documentation function into a separate memory unit that is distinct from the main processing components. This allows comprehensive error history to be stored without complicating the core measurement and control systems, as the memory unit independently handles status message storage and retrieval.
Solution Approach 2:
The patent creates a copy of the status messages in the memory unit that can be evaluated after the measurement process. This copying approach allows the original measurement process to proceed independently while maintaining a complete record of errors for later analysis, without requiring the measurement system itself to be more complex.
3Difficulty of detecting and measuring
If status messages are stored cumulatively during the measurement process, then chronological error tracking is enabled, but the data management complexity increases
Solution Approach 1:
The patent applies preliminary action by continuously storing status messages in the memory unit throughout the measurement process, so that complete chronological error data is already available when the measurement ends. This eliminates the need for complex real-time error analysis systems, as all error information is pre-recorded and ready for evaluation.
Data Source
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AI summary
A method (1) for operating a flow meter (2) for carrying out a plurality of time-limited measurement processes is described and illustrated, wherein the flow meter (2) has at least one diagnostic unit (3), one counter unit (4) and one storage unit (5) with at least one memory (6), wherein the counter unit (4) determines at least the total volume of a fluid passing through the flow meter (2) during a measurement process, and wherein the counter unit (4) is operated for the duration of a time-limited measurement process, wherein the diagnostic unit (3) detects at least a faulty or fault-free state of the flow meter.The task of specifying a method for operating a flow meter that ensures a particularly high reliability of the measured values determined during individual measurement processes is solved by the diagnostic unit (3) generating at least one status message (9) based on the state and transmitting the status message to the storage unit (5) and storing it in the memory (6) of the storage unit (5), and by ensuring that if several status messages (9a) are transmitted, they are cumulatively stored in the memory (6) of the storage unit (5) at least for the duration of the measurement process.