Measurement Apparatus Segmentation for Real-Time Signal Processing
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Solution Overview
Problem
Existing measurement systems face challenges in processing high-resolution, high-sample-rate digital signals in real-time due to the complexity and cost of computational resources required, making it difficult to simultaneously analyze signals with high accuracy and display them in real-time.
Innovation Solution
A measurement apparatus and method that involves a data acquisition device, memory, and decimator to generate a high-resolution data stream, which is then decimated to a lower sample rate and resolution, allowing for real-time processing with simpler hardware, while storing the high-resolution data for offline analysis with lower computational requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high sample rate and high resolution are used for measuring signals, then measurement precision is improved, but device complexity increases due to requirements for complex computational resources
Solution Approach 1:
The patent segments the processing of measurement data into two distinct pathways: a first data stream processed in real-time with reduced resolution and sample rate, and a second data stream processed offline with full resolution and sample rate. This segmentation allows the system to maintain high measurement precision while using simpler real-time computational resources, as the complex high-precision processing is performed offline rather than in real-time.
2Measurement precision
If high sample rate and high resolution are used for measuring signals, then measurement precision is improved, but productivity decreases due to the time required to process huge amounts of data
Solution Approach 1:
The patent divides data processing into real-time and offline segments. The real-time segment processes a first data stream with reduced resolution and sample rate, enabling fast display and immediate feedback. The offline segment processes the complete second data stream with full resolution and sample rate for comprehensive analysis. This segmentation allows the system to achieve both real-time responsiveness and high measurement precision without compromising productivity.
Solution Approach 2:
The patent applies partial action by processing only a reduced-resolution version of the data in real-time, which is sufficient for display purposes and immediate monitoring. The full-resolution data is processed offline when comprehensive analysis is required. This partial real-time processing approach maintains productivity by avoiding the computational burden of processing complete high-resolution data in real-time, while still preserving measurement precision for offline analysis.
3Measurement precision
If high resolution and high sample rate data are processed in real-time, then measurement precision is improved, but device complexity increases due to expensive computational hardware requirements
Solution Approach 1:
The patent segments data processing into two quality levels: a first data stream with reduced resolution and sample rate for real-time processing using simple, inexpensive hardware; and a second data stream with full resolution and sample rate for offline processing. This segmentation enables the use of cost-effective real-time hardware while preserving the option to perform high-precision analysis offline, thereby reducing overall device complexity and hardware costs.
Solution Approach 2:
The patent employs partial action by processing a downsampled and reduced-resolution version of the measurement data in real-time, which is sufficient for display and monitoring purposes. This partial processing approach allows the use of simpler, less expensive hardware for real-time operations, while the complete high-resolution data is retained for offline analysis when maximum precision is required, thus reducing hardware costs without sacrificing measurement capability.
Data Source
AI summary
Measurement apparatus and method for digital data acquisition. A first operation mode is provided for real-time processing of digital data having a reduced sample rate or resolution. Furthermore, a second operation mode is provided for processing the measurement signal off-line with a higher accuracy. In particular, the high accuracy data may be temporarily stored and analyzed upon the operation mode is changed from the real-time mode to the off-line mode.