基于三電極體系的血氧檢測系統(tǒng)的設計
[Abstract]:At present, blood oxygen concentration is widely used as an important parameter to measure the state of human body and to monitor the patient's condition. The current commonly used blood oxygen detector has some problems, such as insufficient accuracy and large measurement error. Therefore, it is very important to design a set of blood oxygen measurement system with high detection accuracy. Based on the principle of three-electrode system, a blood oxygen measurement system is designed in this paper. The working principle of the blood oxygen detector is that there is a linear relationship between the current value and the blood oxygen content in a certain range, and the blood oxygen concentration can be calculated by measuring the corresponding current value. The content of blood oxygen in blood was measured by three-electrode system. The three electrodes were working electrode, reference electrode and opposite electrode. With the gradual development of microprocessor, embedded technology is becoming more and more perfect, and modern medical electronics has been greatly developed. This paper describes a blood oxygen detection system based on the rapid development of embedded technology, which can detect human blood oxygen and upload it to display and store it in real time. In this paper, the current development of blood oxygen detection is introduced, then several basic methods of blood oxygen detection are introduced, and then the principle and realization method of three electrodes blood oxygen detection are introduced in detail. This system takes ARM Cortex-M4 as the core processor, carries the 渭 C/OSII embedded operating system, and uses the PC computer based on the LabWindows/CVI software platform as the host computer to manage. Through the powerful function of LabWindows/CVI to achieve data reception, parameter display and other functions. The realization of the driver of the hardware interface is also given in this paper. Finally, the detected oxygen concentration is transmitted to the PC via Ethernet under the control of the core processor.
【學位授予單位】:煙臺大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TH77;TP274
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