| 摘要(英) |
This paper proposes a non-contact optical method to detect the pulse of the human body, mainly to accurately determine the pulse on the surface of the human body, monitor the change of its extremely small displacement, and effectively store the pulse data, which is conducive to the state comparison during the return visit, not only The Chinese doctor understands the current situation and can also let the patient himself see his condition.
The method consists in designing a monitoring system that uses a linear CMOS Image sensor with a non-contact optical triangulation technique. The research system improves the measurement speed and accuracy of an optical triangulation system using a conventional array (COMS-Array) photosensitive element, allowing the user to use the non-contact optical measurement system to see the pulse, Frequency changes and differences at the position of the off and the ruler.
The experimental results prove that the method can quantify the pulse changes and unify the standard, and there will be no personal error. The research results will provide a pulse measurement method through the line image sensor, and can resolve to a displacement change of 2.5 μm and a sampling speed of up to 200 times per second. The frequency of change is used as long-term tracking and observation. The obtained data can further explore the subtle correlation between each pulse and the human body, and combine frequency and energy with Chinese medicine. This research system can be used for preliminary diagnosis of Chinese medicine and related medical treatment, thereby effectively improving the convenience of visiting.
According to the experimental results, it is found:
A. The infarct, vein and vein of the radial artery are located on the blood vessel, and the beating signal is significant. However, the Guanmai has an easy-to-see amplitude at 1.2 Hz, which is a harmonic of 0.05 Hz and 0.24 Hz at the fundamental frequency. The estimated number of heartbeats is 72/min, which is the standard of 60-100 beats per minute for the average person.
B. Prove that different pulses have different frequencies, and each of the three pulses has its own main composition frequency. The main component frequency of the pulse position is the most. The main component frequency of the inch pulse is 0.07 Hz, the pulse is 0.05 Hz, 0.18 Hz, 0.24 Hz and 0.56 Hz, and the ruler is 0.04 Hz.
C. The peaks of "inch vein", "guan pulse" and "foot vein" are concentrated and close at 0.15 Hz, 0.21 Hz and 0.41 Hz, indicating that the three pulse points are on the same artery. |
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