2 research outputs found
A Signal Processing Method for Respiratory Rate Estimation through Photoplethysmography
Monitoring of respiration is crucial for determining a patient´s health status, specially
previously and after an operation. However, many conventional methods are difficult to
use in a spontaneously ventilating patient. This paper presents a method for estimating
respiratory rate from the signal of a photoplethysmograph. This is a non-invasive sensor
that can be used to obtain an estimation of beats per minute of a given patient by
measuring light reflection on the patient’s blood vessel and counting changes in blood
flow. The PPG signal also offers information about respiration, so respiratory rate can be
obtained through signal processing. The proposed method based on digital filtering was
implemented in a wearable device and tested on 30 volunteers, and the results were
compared with the ones measured by traditional ways. The results show that there is no
statistically significant difference between the data measured by the device and the
traditional method
Revista Temas Agrarios Volumen 26; Suplemento 1 de 2021
1st International and 2nd National Symposium of Agronomic Sciences: The rebirth of the scientific discussion space for the Colombian Agro.1 Simposio Intenacional y 2 Nacional de Ciencias Agronómicas: El renacer del espacio de discusión científica para el Agro colombiano