Oscilloscope Signal Processing via Software ADC
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Solution Overview
Problem
Traditional digital oscilloscopes require hardware devices like analog-to-digital converters to process analog signals, making them costly and inconvenient for users due to complex operations and bulkiness.
Innovation Solution
A method and apparatus that convert voltage signals into digital signals through software processing by determining high and low level signals based on a reference voltage, using baud rate and collection frequencies to extract valid digital signals, allowing for software-based signal processing without hardware converters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If hardware devices like analog-to-digital converters are used to process analog signals, then signal processing accuracy is improved, but device cost and complexity increase
Solution Approach 1:
The patent replaces the mechanical hardware system (analog-to-digital converter) with a software-based processing system. The microcontroller directly processes analog signals through software algorithms, converting them to digital signals without requiring dedicated hardware conversion circuits. This substitution eliminates complex hardware components while maintaining signal processing functionality through computational methods.
Solution Approach 2:
The patent extracts the signal conversion function from dedicated hardware components and integrates it into the software running on the microcontroller. By taking out the analog-to-digital conversion function from separate hardware devices and embedding it in software, the system reduces hardware complexity while preserving the essential signal processing capability.
2Reliability
If hardware converters are used for signal processing, then signal processing capability is improved, but device portability and ease of operation deteriorate
Solution Approach 1:
The patent merges the signal processing functions with the microcontroller's existing processing capabilities. Instead of using separate hardware converters, the system combines analog signal acquisition, processing, and digital conversion into a single integrated software-based workflow within the microcontroller. This merging eliminates the need for additional hardware components, making the device more compact and easier to operate.
3Measurement precision
If hardware devices like analog-to-digital converters are used, then signal processing precision is improved, but device cost increases
Solution Approach 1:
The patent replaces expensive, specialized hardware components (analog-to-digital converters) with more economical software-based solutions running on standard microcontrollers. This approach uses readily available, lower-cost components that can be programmed to perform the same signal processing functions, significantly reducing device manufacturing costs while maintaining processing precision through software algorithms.
Data Source
AI summary
Embodiments of the present invention relate to the technical field of oscilloscopes and disclose a method and an apparatus for processing an oscilloscope signal and an oscilloscope. The method for processing the oscilloscope signal includes: obtaining a voltage signal; determining high and low level signals in the voltage signal according to a reference voltage; determining a valid digital signal from the high and low level signals; and displaying a waveform image of the digital signal. According to the embodiments of the present invention, the voltage signal may be converted into the digital signal without digital processing on the voltage signal via a hardware device such as an analog converter, thereby reducing costs of the oscilloscope and facilitating user operation and carrying.