Measurement condition reproducing device and method based on body's surface texture characteristic and contact pressure

Abstract

The invention relates to a device and method for reproducing measurement conditions based on human body surface or surface texture features and contact pressure. It is composed of optical fiber probe, linear displacement in x, y, z directions and z-axis angle servo positioning device, stage, lighting device, camera, image acquisition card, spectrum detection system and computer processing system; at the same time, it is equipped with contact pressure Sensors and temperature sensors, and devices for processing and collecting pressure and temperature signals. The steps of the method are as follows: (1) image pickup, matching and positioning of human body surface or surface texture features; (2) positioning of measurement positions such as xy plane displacement and z-axis rotation angle according to the results of image matching; The contact pressure with the surface of the human body or the surface texture is used for z-direction positioning; (4) During the working process of the measuring element, images are collected on the surface of the human body or the surface texture features, and the movement status of the measurement part is monitored. The invention can be used for non-invasive spectrum detection of human body blood parameters and other components in human body.

Description

technical field [0001] The invention relates to a measurement device and method, in particular to a measurement condition reappearance device and method based on human body surface or surface texture characteristics and contact pressure. Background technique [0002] In the process of non-invasive infrared spectrum detection of human body components (such as: blood sugar concentration, etc.), due to the differences in human tissue structure, such as skin tissue and thickness, blood vessel distribution, fat composition and thickness, etc., and fluctuations in the external environment, It is required that the measurement conditions such as the measurement site and contact pressure be kept constant. [0003] In a detection system based on infrared spectroscopy, even if the content of a certain component to be tested in the human body is basically constant, the spectral measurement data of different human bodies or different parts of the same human bo...

AI Technical Summary

Problems solved by technology

[0005] (1) It cannot automatically and effectively identify whether the measured object is the same individual, and human intervention is necessary;

[0006] (2) The reproduction accuracy of the measurement position is low, the highest can only reach the pixel level;

[0007] (3) The contact pressure of the measurement site is not considered when the measurement conditions are reproduced;

[0008] (4) There is no effective solution to the rotation phenomenon of the measurement part;

[0009] (5) The measurement error caused by the movement of the measurement part during the measurement process has not been considered and resolved

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