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Application US20200245873
Published 2020-08-06
Detecting Respiratory Tract Infection Based On Changes In Coughing Sounds
Detecting a respiratory tract infection (RTI) based on changes in coughing sounds, which can provide an early warning of infection with a disease like COVID-19, as well as indications of its progression and severity. In one embodiment, the system includes smartglasses, with sensors mounted thereto, which include an acoustic sensor mounted at a fixed position relative to a user's head, and a movement sensor. A computer receives current measurements of the user, taken with the sensors, while there were head movements that characterize coughing, and also earlier measurements of the user, taken with the sensors, while the user had a known extent of the RTI and while there were head movements that characterize coughing. The computer detects a change relative to the known extent of the RTI based on a difference between the current measurements and the earlier measurements.
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- 1. A system configured to detect a respiratory tract infection (RTI) based on changes in coughing sounds, comprising:
a wearable ambulatory system comprising the following sensors:
a head-mounted acoustic sensor configured to be mounted at a fixed position relative to a user's head, and to take audio recordings comprising coughing sounds of the user; and
a head-mounted movement sensor configured to measure a signal indicative of movements of the user's head (movement signal);
and a computer configured to:
receive current measurements of the user, taken with the sensors while the movement signal was indicative of head movements that characterize coughing;
receive earlier measurements of the user, taken with the sensors at least four hours before the current measurements, while the user had a known extent of the RTI and while the movement signal was indicative of head movements that characterize coughing; and
detect a change relative to the known extent of the RTI based on a difference between the current measurements and the earlier measurements.
- 17. A system configured to detect a change to respiratory tract infection (RTI) based on changes in coughing sounds, comprising:
a wearable ambulatory system comprising the following sensors:
a head-mounted acoustic sensor configured to be mounted at a fixed position relative to a user's head, and to take audio recordings comprising coughing sounds of the user; and
a head-mounted movement sensor configured to measure a signal indicative of movements of the user's head (movement signal);
and a computer configured to:
receive earlier measurements and current measurements of the user, taken with the sensors while the movement signal was indicative of head movements that characterize coughing;
generate feature values based on data comprising the earlier measurements and the current measurements;
utilize a machine learning-trained model to calculate, based on the feature values, one or more values indicative of a difference between first and second extents of coughing recognizable in the earlier measurements and the current measurements, respectively; and
detect the change to the RTI based on a difference between the first and second extents.
