ECG Simulator Frame Combination for Signal Generation
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Solution Overview
Problem
The design and management of waveform sequences for signal generation products, such as ECG simulators, are complex and require simplification to efficiently generate and stimulate biological activity signals.
Innovation Solution
A system comprising a remote control panel and a function generator that processes programming values to generate analog output signals for stimulating a system under test, allowing for wireless communication and combining frames to produce specified average periods and rates, facilitating the creation and simulation of physiological electrical signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If waveform sequences are designed and managed using traditional methods with multiple controls for shape, width, amplitude, and frequency, then signal generation capability is achieved, but the design and management process becomes complicated
Solution Approach 1:
The patent segments the waveform design process into discrete 'frames' that can be independently defined and then combined through mathematical operations. Each frame represents a basic building block with specific parameters (shape, width, amplitude, frequency), and complex waveforms are constructed by combining these simple frames using addition, multiplication, or other mathematical functions. This segmentation transforms the complicated manual design process into a systematic approach where complex signals are built from simple, reusable components.
2Measurement precision
If multiple frames are combined to produce waveform sequences with specified average periods and rates, then physiological signal simulation accuracy is improved, but the processing complexity increases
Solution Approach 1:
The patent employs copying by creating reusable frame templates that can be instantiated multiple times with different parameters. Once a frame is defined with specific characteristics (e.g., a P-wave shape or T-wave shape), it can be copied and combined multiple times to generate complete ECG cycles and extended waveform sequences. This copying mechanism allows precise physiological signal simulation through systematic repetition and combination of validated frame patterns, reducing the need to manually design each waveform from scratch.
3Ease of operation
If wireless communication is implemented between control panel and function generator, then system accessibility and remote operation are improved, but communication reliability and signal integrity may be compromised
Solution Approach 1:
The patent implements an intermediary communication layer that translates control panel commands into standardized programming signals for the function generator. This intermediary processing layer includes protocol handling, error checking, and signal validation mechanisms that ensure reliable wireless communication. The system uses structured data formats and confirmation protocols to maintain signal integrity between the wireless control panel and the function generator, mitigating the reliability concerns associated with wireless transmission.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies the process of designing and managing waveform sequences, enabling efficient generation of physiological signals like ECG signals with varying rates, aiding in the evaluation and validation of medical monitoring devices.
Implementation Method 1
a digital-to-analog converter (DAC) configured to convert the processed signals into analog output signals
Data Source
AI summary
An electrocardiograph (ECG) simulator is provided to generate sequences of wave shapes having specified average rates for a sequence of varying rates.