FANG, WEI CHI,方伟骐,方偉騏,CHEN, HSIAO YU,陈小予,陳小予,HUANG, TENG CHIEH,黄腾颉,黃騰頡
申请号：
TW101143045
公开号：
TWI499404B
申请日:
2012.11.19
申请国别(地区):
TW
年份:
2015
代理人:
摘要：
The invention provides a sleep apnea detection system and method. The system comprises a detection module, a processing module, a transform module and a determining module. The detection module detects a plurality of peak time points of R waves in ECG (electrocardiograph) signal. The processing module calculates areas of the R waves at predetermined time range based on the peak time points, so as to produce a plurality of first R wave area signals based on the areas, and form EDR (ECG Derived Respiration) signal based on the peak time points and the first R wave area signals. The transform module converts the EDR signal to frequency signal. The determining module determines that whether maximum peak frequency of the frequency signal is at first frequency segment or second frequency segment to decide the frequency signal as apnea signal or normal breathing signal. Thus, the invention can detect sleep apnea at real time and upgrade detecting efficiency.本發明係提供一種睡眠呼吸暫止症偵測系統及方法。該系統係包括偵測模組、處理模組、轉換模組以及判斷模組。該偵測模組係偵測心電訊號之複數個R波之峰值時間點。該處理模組係依據該些峰值時間點計算該些R波於預定時間範圍之面積,以依據該些面積產生複數個第一R波面積訊號,並依據該些峰值時間點及該些第一R波面積訊號形成心電提取呼吸訊號。該轉換模組係將該心電提取呼吸訊號轉換為頻率訊號。該判斷模組係判斷該頻率訊號之最大峰值之頻率是否位於第一頻率區間或第二頻率區間,以判定該頻率訊號為呼吸暫止訊號或正常呼吸訊號。藉此,本發明可即時偵測睡眠呼吸暫止症,並提升偵測效率。100‧‧‧睡眠呼吸暫止症偵測系統110‧‧‧訊號擷取模組111‧‧‧心電訊號120‧‧‧第一中值濾波器130‧‧‧偵測模組131‧‧‧R波132‧‧‧峰值時間點140‧‧‧處理模組141‧‧‧面積142‧‧‧第一R波面積訊號143‧‧‧心電提取呼吸訊號144‧‧‧第二R波面積訊號145‧‧‧連續訊號150‧‧‧第二中值濾波器160‧‧‧轉換模組161‧‧‧頻率訊號170‧‧‧判斷模組171‧‧‧呼吸暫止訊號172‧‧‧正常呼吸訊號173‧‧‧混雜訊號
