Humidity sensor, electronic device and respiration detection system and method

Abstract

The invention relates to the field of electronic devices, and discloses a humidity sensor, an electronic device and a respiration detection system and method. The humidity sensor is made of a sensitive thin film material sensitive to water vapor, response time can be greatly shortened, response amplitude is increased, several seconds to several minutes of the response time of a humidity sensor in the prior art are shortened below 0.1 second, the humidity (water vapor content) in environment gas can be measured, and real-time respiration monitoring is possible. Furthermore, the humidity sensor is adopted in the electronic device or the respiration detection system, the water vapor content in respiration can be monitored in real time, and therefore physical conditions are monitored and the guidance is provided for respiration exercise.

Description

technical field [0001] The invention relates to the field of electronic equipment, in particular to a moisture sensor, electronic equipment, a breathing detection system and a method. Background technique [0002] With the development of science and technology and the progress of society, people's demand for monitoring instruments of oral and nasal airflow and respiratory status is also increasing. At present, there are four main types of sensors used for the monitoring of mouth and nose airflow and respiratory state: the first type is based on thermal elements, which monitor the respiratory state by monitoring the temperature changes of the mouth and nose airflow; the second type is based on moisture sensitive elements, which monitor The humidity change of the airflow is used to monitor the respiratory state; the third type is based on the piezoresistive element and the fourth type is based on the piezoelectric element, and the respiratory state is monitored by monitoring t...

AI Technical Summary

Problems solved by technology

The third and fourth types of devices are limited by the sensitivity of sensitive materials, the signal extraction is difficult, the interface circuit is complex, the equipment cost is high, and the sensor needs to be fixed under the nostril or mouth, so that the subject has an obvious foreign body sensation on the face , uncomfortable to use

However, the sensitive film materials of the existing humidity sensors cannot respond quickly, and cannot follow the change of the humidity of the gas under the nostrils when the human body exhales and inhales, and cannot be used for real-time monitoring of human respiration

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