Optical method-based anti-motion interference reflection type pulse rate signal detection device

Abstract

The invention discloses an optical method-based anti-motion interference reflection type pulse rate signal detection device and relates to the field of detection instruments. According to the pulse rate signal detection device, two LED light-emitting tubes are arranged for receiving two signals in a photoelectric receiving tube after being matched with the reflection characteristic of a narrow-band total reflection film. Between the above two signals, one signal is an optical signal completely reflected by the narrow-band total reflection film directly after being emitted from the LED light-emitting tubes through an air layer, wherein the pure noise interference is achieved. The other signal enters a human body through the skin of the human body after being emitted from the LED light-emitting tubes through the air layer, the narrow-band total reflection film and a flexible substrate, and is finally reflected back to the photoelectric receiving tube, wherein the signal contains the pulse information with noise interference. After the two signals are obtained, the two signals can be used for subsequent data processing. In this way, the pulse information of a person to be tested is calculated. The device is designed based on a photoelectric volume pulse wave monitoring method, and has the non-invasive characteristics. By means of the device, the pulse information can be quickly and accurately obtained.

Description

technical field [0001] The invention belongs to the field of detection instruments, and in particular relates to an anti-motion interference reflection type pulse rate signal detection device based on an optical method. Background technique [0002] The pulse rate detection device is an electronic instrument used to measure the beating times of a person's pulse and heart rate. It is also the main component of the electrocardiogram. Therefore, it plays an important role in modern medicine and can reflect many physiological and pathological conditions in the human cardiovascular system to a large extent. Therefore, the acquisition and processing of pulse waves play an important role in medical diagnosis, sports training, elderly care and other fields. At present, there are many types of instruments for detecting pulse rate on the market, but there are not many pulse measuring devices that can achieve accurate measurement, and most of the biological signals of the human body ar...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problem that the signal detection device in the prior art cannot extract motion noise separately, and provide an anti-motion interference reflective pulse rate signal detection device based on an optical method, so that it can separately extract motion noise signal, which has a strong ability to resist motion interference

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