Digital Multimeter Auto-Save Stability Detection
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Solution Overview
Problem
Modern digital multimeters lack effective features for users to record, organize, and analyze measurement information efficiently, despite having numerous features for capturing and displaying data.
Innovation Solution
The digital multimeter incorporates advanced recording modes, such as AutoHOLD and AutoSAVE, along with data compression and auto-incrementing naming features, allowing for automatic capture and storage of minimum and maximum values, and providing users with intuitive data management through a user-friendly interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual save and hold functions are provided, then users can capture measurements, but the process requires multiple button presses and user intervention
Solution Approach 1:
The multimeter automatically detects when a measurement has stabilized and saves it without requiring user intervention. The device monitors its own measurement stability and autonomously triggers the save function, eliminating the need for manual button presses while maintaining simple operation.
Solution Approach 2:
The multimeter continuously monitors measurement stability in the background and prepares to save automatically when stability criteria are met. This preliminary automatic detection and preparation eliminates the need for user intervention at the moment of saving.
2Adaptability or versatility
If multiple features for data capture are included, then measurement functionality is enhanced, but ease of operation deteriorates due to complexity
Solution Approach 1:
The patent combines multiple data management functions (automatic saving, holding, stability detection, and organization) into a single integrated AutoSAVE mode. This consolidation provides comprehensive data management capability while maintaining simple operation through a single mode activation.
Solution Approach 2:
The AutoSAVE mode serves multiple functions simultaneously: it automatically detects stable measurements, saves them with timestamps, organizes them in memory, and provides review capabilities. This multi-functionality enhances adaptability while keeping the user interface simple through a unified mode.
3Loss of information
If automatic saving of all measurements is implemented, then data completeness is improved, but loss of time increases due to continuous saving
Solution Approach 1:
Instead of saving every single measurement, the system saves only those measurements that meet the stability criteria. This partial action approach ensures data completeness for meaningful measurements while avoiding the time loss of processing and saving every intermediate reading.
Solution Approach 2:
The system continuously monitors measurement stability and uses this feedback to determine when to save. This feedback mechanism ensures that only stable, meaningful measurements are saved, maintaining data completeness while minimizing unnecessary saving operations that would consume time.
Data Source
AI summary
A digital multimeter includes an auto-save component configured to automatically capture and save a sequence of measurements. The auto-save component detects when a measurement becomes stable and upon determining that the measurement has become stable, captures and saves the measurement in a memory of the digital multimeter. The multimeter may additionally include an auto-naming component for automatically assigning a name to each measurement in the sequence, and an auto-hold component for temporarily freezing the display of the stable measurements in the multimeter.