Study on the Method of Synchronous Data Acquisition Between Polysomnography Equipment and Bowel Sound Device
Objective To propose a method of synchronous data acquisition of two independent devices based on tapping pulse signal to realize the synchronous data acquisition.Methods The snoring sensor of polysomnography equipment and bowel sound equipment were used to tap each other to generate transient pulse signals as synchronization markers.The third-order cumulant of synchronous marker signals was calculated to identify and align the synchronization markers.And multiple sets of synchronization markers were used to evaluate the accuracy of data synchronization.Results The snoring sensor of the polysomnography device and the bowel sound device were tapped against each other to generate clear and distinct synchronization marker pulse signals.By combining the time domain characteristics and the third-order cumulative sum,the accurate identification and alignment were achieved.The verification of multiple groups of synchronous labeled signals showed that this synchronization method could ensure the synchronization accuracy within 5 ms.Conclusion This method of synchronous data acquisition is simple and feasible,which can ensure the synchronous acquisition of polysomnography equipment and bowel sound equipment with high precision.It also provides a reference for the realization of other completely independent multi-device data synchronous acquisition.
polysomnography equipmentthe bowel sounds devicetransient knocking signalssynchronous data collection
国家科技期刊平台
NSTL
万方数据
维普
