发明名称 |
MEASURING PSYCHOLOGICAL STRESS FROM CARDIOVASCULAR AND ACTIVITY SIGNALS |
摘要 |
A method and system for measuring psychological stress disclosed. In a first aspect, the method comprises determining R-R intervals from an electrocardiogram (ECG) to calculate a standard deviation of the R-R intervals (SDNN) and determining a stress feature (SF) using the SDNN. In response to reaching a threshold, the method includes performing adaptation to update a probability mass function (PMF). The method includes determining a stress level (SL) using the SF and the updated PMF to continuously measure the psychological stress. In a second aspect, the system comprises a wireless sensor device coupled to a user via at least one electrode, wherein the wireless sensor device includes a processor and a memory device coupled to the processor, wherein the memory device stores an application which, when executed by the processor, causes the processor to carry out the steps of the method. |
申请公布号 |
US2016338641(A1) |
申请公布日期 |
2016.11.24 |
申请号 |
US201615096174 |
申请日期 |
2016.04.11 |
申请人 |
Vital Connect, Inc. |
发明人 |
CHAN Alexander;NARASIMHAN Ravi |
分类号 |
A61B5/00;A61B5/0245;A61B5/04;A61B5/0468;A61B5/16;A61B5/0456;A61B5/11;A61B5/024 |
主分类号 |
A61B5/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method for measuring psychological stress, the method comprising:
determining R-R intervals from an electrocardiogram (ECG) to calculate a standard deviation of the R-R intervals (SDNN); determining a stress feature (SF) using the SDNN; in response to reaching a threshold, performing adaptation to update a probability mass function (PMF); and determining a stress level (SL) using the SF and the updated PMF to continuously measure the psychological stress. |
地址 |
Campbell CA US |