Signal simulator, signal simulation method and device, computer equipment and storage medium

Abstract

The invention relates to a signal simulator. The signal simulator comprises a power module, a control module, a signal storage module and a digital-to-analog conversion module; the power module is used for supplying power to the signal simulator; the signal storage module is connected with the power supply module and is used for storing lead digital signals corresponding to the physiological indexes; the digital-to-analog conversion module is connected with the control module and is used for converting the lead digital signal into a lead analog signal; and the control module is respectively connected with the signal storage module and the digital-to-analog conversion module and is used for sending control signals to the signal storage module and the digital-to-analog conversion module, controlling the signal storage module to provide lead digital signals and controlling the digital-to-analog conversion module to carry out digital-to-analog conversion to obtain lead analog signals and output the lead analog signals. The signal simulator not only improves the accuracy and stability of physiological signal generation, but also realizes synchronous generation of a plurality of physiological signals. In addition, the invention further provides a signal simulation method and device, computer equipment and a storage medium.

Description

technical field [0001] The present invention relates to the technical field of signal simulation, in particular to a signal simulator, a signal simulation method, a device, computer equipment and a storage medium. Background technique [0002] PSG (Polysomnography, polysomnography) is the most important examination for diagnosing sleep snoring (sleep apnea hypopnea syndrome, OSAHS). Through the continuous monitoring of breathing, arterial blood oxygen saturation, EEG, ECG, heart rate and other indicators at night, we can know whether the snorer has apnea, the number of pauses, the time of the pause, the lowest arterial blood oxygen value when the pause occurs, and The degree of impact on physical health is the internationally recognized gold standard for diagnosing sleep apnea hypopnea syndrome. [0003] All monitoring devices for sleep disorders need to detect one or more physiological signals. Such devices require a lot of data simulation and verification in the early sta...

AI Technical Summary

Problems solved by technology

Many traditional physiological signals do not have special simulator equipment, and most of them are replaced by ordinary signal generators. In the later stage of development, they can only be realized by connecting to the human body as test signals. On the one hand, this method leads to inaccurate physiological signals. On the other hand, the human body has unstable characteristics as a test signal. In the last aspect, the signal time between various signal simulators is not synchronized, which cannot verify the real-time performance of the research and development equipment.

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