Measuring Transducer ASIC With Independent Frequency Scaling
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Solution Overview
Problem
Modern measuring transducers face challenges in meeting varied requirements for measuring accuracy and dynamics, and existing components are not scalable or flexible in terms of energy consumption.
Innovation Solution
An application-specific integrated circuit (ASIC) with variable sampling, processing, and output frequencies, allowing for adaptive frequency adjustments based on measurement needs, is implemented, enabling independent control of frequencies such as sampling, digital signal processing, and output frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed frequencies are used for sampling, processing, and output, then device complexity is reduced, but adaptability to different measurement requirements deteriorates
Solution Approach 1:
The patent implements variable frequencies for sampling, digital signal processing, and output that can be independently adjusted based on measurement requirements. This dynamic frequency adjustment allows the system to adapt to different measurement scenarios (e.g., static vs. dynamic measurements) without requiring complex hardware changes, resolving the contradiction between adaptability and device complexity.
2Measurement precision
If high processing frequency is used, then measurement dynamics and accuracy are improved, but energy consumption increases
Solution Approach 1:
The patent enables dynamic adjustment of the digital signal processing frequency and output frequency based on the actual measurement needs. For static measurements, lower frequencies reduce power consumption while maintaining sufficient measurement accuracy. For dynamic measurements, higher frequencies improve response speed and accuracy. This dynamic frequency control resolves the contradiction between measurement performance and energy consumption.
Solution Approach 2:
The patent changes the operating parameters (frequencies) of the system based on measurement requirements. By adjusting sampling frequency, processing frequency, and output frequency independently, the system optimizes the balance between measurement accuracy/dynamics and power consumption for different application scenarios.
3Speed
If high sampling frequency is used, then measurement dynamics are improved, but productivity of other processing tasks deteriorates
Solution Approach 1:
The patent implements independent control of sampling frequency and digital signal processing frequency. This allows the sampling frequency to be set high for capturing dynamic measurements, while the processing frequency can be optimized separately to maintain overall system productivity. The decoupling of these frequencies resolves the contradiction between measurement response speed and processing throughput.
Data Source
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Figure 2a~2b
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AI summary
An application-specific integrated circuit (ASIC) (1) comprises: analogue inputs (11) with analogue/digital converters (ADCi) (12), at least one digital signal processor (DSP) (13) having input registers (14) and output registers (15), wherein the analogue/digital converter(s) (ADC) sample(s) input signals (Si), which depend on current values of measurement variables, at sampling frequencies (fSi) and digitize said signals and provide the input registers of the digital signal processor with the digitized signals (SDi) at output frequencies (fSD-out-i), wherein the digital signal processor (DSP) processes the digitized signals (SDi) to form m conditioned signals (SPj) and provides said signals in the output registers of the digital signal processor (DSP), wherein the digital signal processor has a clock frequency (fDSP), wherein the signals (SPj) can also be output or read from the output registers at an output frequency (fSP-out-j), wherein one or more of the frequencies (fSD-out-i, fDSP, fSP-out-j) is/are variable according to the invention, wherein one or more of the frequencies (fSD-out-i, fDSP, fSP-out-j) is/are, in particular, variable independently of the other of said frequencies.