Semi-physical simulation system for pressure adjustment of oxygen mask respiratory chamber

A semi-physical simulation and pressure adjustment technology, applied in control/regulation systems, general control systems, instruments, etc., can solve problems such as algorithm application limitations and simulation experiments without reference value

Active Publication Date: 2016-09-28
雁翔和泰(深圳)科技有限公司
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  • Abstract
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Problems solved by technology

However, there is a certain gap between the pure simulation experiment and the actual control process, the application of the algorithm will be limited, and the simulation experiment will have no reference value for the actual control

Method used

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  • Semi-physical simulation system for pressure adjustment of oxygen mask respiratory chamber
  • Semi-physical simulation system for pressure adjustment of oxygen mask respiratory chamber
  • Semi-physical simulation system for pressure adjustment of oxygen mask respiratory chamber

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Embodiment Construction

[0038]The invention has the characteristics of flexible control algorithm and application object structure, and common communication interface. In order to illustrate that the hardware-in-the-loop simulation results obtained by using the present invention can provide a certain reference value for the development of the control scheme of the debugging platform of the specific oxygen supply system, an experimental verification is carried out for one of the application objects in this example. In the example, the application object is a simulated oxygen supply system debugging platform with a proportional flow valve as the specific structure of the lung regulator valve ( image 3 ), the mathematical model of the structure of the lung-type regulating valve in the hardware-in-the-loop simulation system is replaced by the mathematical model of the proportional flow valve. ADRC algorithm, comparing the dynamic curve of the mask breathing chamber pressure obtained by the hardware-in-t...

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Abstract

The invention provides a semi-physical simulation system for pressure adjustment of an oxygen mask respiratory chamber. A lung type regulating valve structure mathematical model, a respiratory valve mathematical model, a respiratory mathematical model and a mask respiratory chamber mathematical model are realized by a Matlab platform in a PC, and are respectively used for describing gas flow characteristics in a lung type regulating valve structure, a respiratory valve, a breathing process and a mask respiratory chamber. An STM32F407IGT6 microprocessor is used as control of the control system in the semi-physical simulation system, thereby operating a control algorithm. The PC communicates with the control system through an RS232 serial port. The semi-physical simulation system is obtained through comparing efficiencies of different control algorithms in the control plan development process of an oxygen mask respiratory chamber pressure regulator. The semi-physical simulation system has advantages of flexible structures of a control algorithm and an application object, high interface universality, etc. The semi-physical simulation system has advantages of realizing advanced problem finding and in-time settlement, shortening development period of a control solution, and saving cost.

Description

technical field [0001] The invention belongs to the field of aircraft personal protection, and relates to the improvement of an oxygen supply experiment system, in particular to the semi-physical simulation of oxygen mask breathing chamber pressure regulation. Background technique [0002] The role of the oxygen supply system is to prevent adverse physiological reactions caused by high altitude hypoxia and low pressure effects. The pressure regulator of the mask breathing chamber is the key controller of the oxygen supply system. It can supply the user with a certain pressure, flow rate and oxygen concentration of mixed gas or pure oxygen according to the changes of the ambient pressure and the user's breathing. [0003] The pressure change in the breathing chamber of the mask reflects the performance of the pressure regulator of the breathing chamber. When inhaling, if the negative pressure in the breathing chamber of the mask is greater, the user's inspiratory resistance w...

Claims

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Application Information

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IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 孙青林蒋玉新张晓雷檀盼龙孙昊罗淑贞孙明玮
Owner 雁翔和泰(深圳)科技有限公司
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