Sleep apnea monitoring method and device based on snore signals

Abstract

The invention discloses a sleep apnea monitoring method and device based on snore signals. The sleep apnea monitoring method comprises the steps that original snore signals are extracted from a polysomnography; sliding frames are adopted to slide along the original snore signals, and the number of signal vertexes in each sliding frame is counted; according to the number of the signal vertexes in each sliding frame, one or more snore signal alternative fragments corresponding to the sliding frames with the number of the signal vertexes larger than a preset threshold value are screened out; whether an apnea event occurs within a preset time period before each snoring sound signal alternative segment or not is detected; and according to a detection result, each screened snore signal alternative fragment is marked as a first type snore signal related to sleep apnea or a second type snore signal irrelevant to sleep apnea. According to the sleep apnea monitoring method, the snore signals extracted from the polysomnography are utilized, the relevance between the snore signals and the respiration signals is fully analyzed, and the snore signals related to sleep apnea and the snore signalsirrelevant to sleep apnea can be monitored.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a sleep apnea monitoring method and device based on snoring sound signals. Background technique [0002] This section is intended to provide a background or context to embodiments of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] Sleep apnea refers to a symptom of temporary cessation of breathing during sleep, which has a greater impact on human health. At present, various existing sleep monitoring devices, or medical devices specially used for diagnosing sleep apnea, monitor whether sleep apnea exists or not, based on directly collected snoring signals. There are a lot of noise signals in the signal, which will lead to technical problems of inaccurate monitoring results. SUMMARY OF THE INVENTION [0004] An embodiment of the present invention provides a sleep apnea monitoring meth...

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Problems solved by technology

[0004] An embodiment of the present invention provides a sleep apnea monitoring method based on snoring signals to solve the problem of monitoring sleep apnea based on directly collected snoring signals in the prior art. The technical problem that leads to inaccurate monitoring results, the method includes: extracting the original snoring signal from the polysomnography; using a sliding frame to slide along the original snoring signal, and counting the number of signal vertices in each sliding frame; According to the number of signal vertices in the frame, one or more snoring signal candidate segments are screened out, wherein each snoring signal candidate segment is a signal segment corresponding to a sliding frame whose number of signal vertices is greater than a preset threshold; each snoring signal candidate segment is detected Whether an apnea event occurs within a preset period of time before the segment; according to the detection results, mark the candidate segments of the selected snoring signals as the first type of snoring signal or the second type of snoring signal, wherein the first type of snoring signal It is a snoring signal related to sleep apnea, and the second type of snoring signal is a snoring signal not related to sleep apnea

[0005] An embodiment of the present invention also provides a sleep apnea monitoring device based on snoring signals to solve the problem of monitoring sleep apnea based on directly collected snoring signals in the prior art. Since there are a large number of noise signals in the directly collected snoring signals, The technical problem that will lead to inaccurate monitoring results, the device includes: an original snoring signal extraction module, used to extract the original snoring signal from the polysomnogram; a signal processing module, used to slide along the original snoring signal using a sliding frame, Count the number of signal vertices in each sliding frame; the signal screening module is used to filter out one or more candidate segments of the snoring signal according to the number of signal vertices in each sliding frame, wherein each candidate segment of the snoring signal is The signal segment corresponding to the sliding frame whose number of signal vertices is greater than the preset threshold; the apnea event detection module is used to detect whether apnea event occurs in the preset time period before each snoring signal candidate segment; the signal classification module is used to detect As a result, the selected snoring signal candidate segments are marked as the first type of snoring signal or the second type of snoring signal, wherein the first type of snoring signal is a snoring signal related to sleep apnea, and the second type The snoring signal is a snoring signal not related to sleep apnea

[0006] The embodiment of the present invention also provides a computer device to solve the problem of monitoring sleep apnea based on directly collected snoring signals in the prior art. Due to the presence of a large number of noise signals in the directly collected snoring signals, the monitoring results will be inaccurate. Technical problem, the computer equipment includes a memory, a processor, and a computer program stored on the memory and operable on the processor, when the processor executes the computer program, the above-mentioned sleep apnea monitoring method based on snoring signals is realized

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