Mask respiration following control method capable of following respiratory capacity

Abstract

A mask respiration following control method capable of following respiratory capacity comprises the steps of collecting a pressure value, calculating a pressure difference, taking an average value, setting a respiration judgment value, setting a trigger threshold value, judging a state, calculating a corresponding relation, calculating tidal volume, calculating an internal and external pressure difference, and determining a pressure difference instruction value and controlling. The method comprises the following steps: pre-judging an expiration state and an inspiration state in advance, calculating the real-time respiratory capacity of an operator through the internal and external pressure difference and the respiratory frequency of the mask, calculating a real-time pressure difference control instruction value through the respiratory capacity, pre-judging the expiration state and the inspiration state of the gas mask to the operator in advance, and adjusting the air supply state of a fan of the gas mask in time. The following of the respiratory rate and the respiratory capacity is realized, the problems of overlarge respiratory resistance and uncomfortable breathing of the gas mask are fundamentally solved, and excellent comfortable breathing experience of the gas mask is obtained.

Description

technical field [0001] The invention belongs to the technical field of air supply control of gas masks, and relates to a mask breathing following control method which can follow the breathing volume. Background technique [0002] The mask products in the market are mainly self-priming filter type and air blower type masks. There are few mask products with the ability to follow breathing. The self-priming filter type mask has too much breathing resistance. When inhaling, the pressure at the end of the mask decreases. The pressure of the airway is insufficient. When exhaling, the pressure at the end of the mask increases, which causes difficulty in breathing, which will make breathing difficult for the human body. Due to the fixed air volume, the air supply type mask cannot follow the breathing process of the operator in real time. At the same time, the air supply volume is too high. Too high or too low will also cause breathing difficulties and physical discomfort to the huma...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a mask breathing following control method that can follow the breathing volume. The real-time breathing volume of the operator is calculated by the difference and breathing frequency, and the real-time pressure difference control command value is calculated through the breathing volume, so as to pre-judge the exhalation state and inhalation state of the mask for the operator in advance, and adjust the air supply state of the mask fan in time to realize breathing. Following the frequency and breathing volume, fundamentally solve the problem of excessive breathing resistance and uncomfortable breathing of the mask, and obtain an excellent comfortable breathing experience of the mask

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