Hardware parameter compensation method and system of blood pressure measuring system

Abstract

The invention relates to a hardware parameter compensation method and system of a blood pressure measuring system. The method comprises the following steps of: collecting and storing a human body pressure signal; judging whether the blood pressure measuring system is communicated with the atmosphere according to the valve opening / closing state of the blood pressure measuring system; judging whether the blood pressure measuring system is in a zero-calibration range when the blood pressure measuring system is judged to be communicated with the atmosphere; calculating an AD0 value of a zero pressure point when the pressure of the blood pressure measuring system is judged to be in the zero-calibration range; judging whether the AD0 value of the zero pressure point meets the requirement; and updating a zero-calibration value and setting the zero-calibration value as the AD0 value of the zero pressure point. The invention provides the hardware parameter compensation method and system of the blood pressure measuring system, which can be used for compensating hardware drifting caused by factors such as temperature and environment change and other hardware parameters.

Description

technical field [0001] The invention relates to a hardware parameter compensation method and system, in particular to a hardware parameter compensation method and system of a blood pressure measurement system. Background technique [0002] At present, the vast majority of non-invasive blood pressure measurements use the oscillation method to measure blood pressure. This method also requires blocking the arterial blood flow with a cuff like the traditional "Krotkoff-sound method". However, in the process of deflation, the blood pressure value is not obtained by detecting the Korotkoff sound, but the pressure sensor detects the oscillation waves of the gas in the cuff, and the blood pressure value is obtained according to these oscillation waves; wherein, these oscillation waves originate from The vibration of the arterial wall; at the same time, this oscillation wave has a certain functional relationship with the systolic pressure, diastolic pressure and mean pressure of the...

AI Technical Summary

Problems solved by technology

[0004] In actual work, the parameters of the hardware circuit will cause changes in hardware parameters due to factors such as the discreteness of the device and changes in the environment (such as temperature changes, etc.), which is called hardware parameter drift; drift

[0005] The drift of the pressure digital signal will introduce pressure errors, which will eventually lead to inaccurate non-invasive blood pressure measurement, failure of pressure recognition, and failure of pressure protection.

In practical applications, inaccurate blood pressure measurement results will cause doctors to misjudge the patient's physical condition, cause wrong medication, and ultimately endanger the patient's life; and the failure of pressure protection may endanger the patient's health

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