【摘要】：隨著社會的不斷發(fā)展,人們的健康意識不斷增強以及亞健康、老齡化等現(xiàn)象的普遍存在,病患就診人群正在不斷擴大,醫(yī)療資源變得更加緊張,人們的健康理念開始發(fā)生從有病就醫(yī)到無病防御的轉變,能夠自行監(jiān)測健康狀況的健康監(jiān)護系統(tǒng)已經(jīng)成為一種迫切的需求。 根據(jù)上述狀況,本文將對人體的心電、血氧、血壓和脈搏多項生理參數(shù)的監(jiān)測作為出發(fā)點,從實用性、便攜性、擴展性等多個角度設計一套能夠實時檢測人體健康信息,通過無線傳輸功能上傳到數(shù)據(jù)中心進行實時監(jiān)護的健康監(jiān)護系統(tǒng)。心電監(jiān)測模塊選用圓盤電極片,采用標準雙極性肢體導聯(lián),在對心電信號特征進行分析的基礎上通過前置放大、二級放大和濾波處理獲取心電模擬信號,通過AD轉換后在軟件上實現(xiàn)心電圖波形的傳輸和存儲以及QRS檢波；血氧監(jiān)測模塊采用動態(tài)光譜法使用波長分別為660nm和940nm的兩種光源透射手指,通過光電接收器對透射光進行光電轉換并對所得電信號放大濾波經(jīng)AD轉換后通過軟件采集人體血氧信息；血壓監(jiān)測模塊采用壓力傳感器將血液循環(huán)中血壓變化時脈搏波振幅的變化所產(chǎn)生的壓力信號轉換為電壓信號,經(jīng)過低通和帶通濾波分別提取靜壓力和脈搏信號,再經(jīng)AD轉換后在軟件中根據(jù)示波法中的幅度系數(shù)法計算血壓值；數(shù)據(jù)匯聚中心使用Samsung公司的S3C2440A芯片作為主控芯片,利用其內(nèi)部的存儲控制器以及LCD控制器等資源和ZigBee無線模塊實現(xiàn)各生理參數(shù)數(shù)據(jù)的顯示、存儲以及由監(jiān)測終端向數(shù)據(jù)匯聚中心轉發(fā)和多參數(shù)的聯(lián)合監(jiān)測。 本系統(tǒng)初步實現(xiàn)了多項生理參數(shù)的監(jiān)測和無線傳輸,能夠實時監(jiān)測心電、血氧、血壓及脈搏,各監(jiān)測模塊均為可選模塊提高了系統(tǒng)的靈活性和可擴展性,對健康監(jiān)護系統(tǒng)的發(fā)展起到了積極的作用。
[Abstract]:With the continuous development of society, people's awareness of health and the prevalence of sub-health, aging and other phenomena, patients are expanding, medical resources become more and more tense, People's health concept began to change from sick medical treatment to disease-free defense, and the health monitoring system which can monitor health status by itself has become an urgent need. According to the above-mentioned situation, this paper takes the monitoring of human heart electricity, blood oxygen, blood pressure and pulse as the starting point, and designs a set of real-time detection of human health information from the aspects of practicality, portability, expansibility, and so on. A health monitoring system that is uploaded to a data center for real-time monitoring via a wireless transmission function. In the ECG monitoring module, the disk electrode is selected and the standard bipolar limb lead is used. On the basis of analyzing the characteristics of ECG signal, ECG analog signals are obtained by pre-amplification, two-stage amplification and filtering processing. After AD conversion, ECG waveform transmission and storage and QRS detection are realized on the software. The blood oxygen monitoring module uses dynamic spectrometric method to transmit the finger with two kinds of light source, the wavelength of which is 660nm and 940nm, respectively. The transmitted light is converted by the photoelectric receiver and the amplified filter of the obtained electrical signal is converted by AD and the oxygen information of human blood is collected by software. The blood pressure monitoring module uses pressure sensor to convert the pressure signal produced by the change of pulse wave amplitude in blood circulation into voltage signal. The static pressure and pulse signal are extracted by low-pass and band-pass filtering, respectively. After AD conversion, the blood pressure value was calculated according to the amplitude coefficient method of oscillographic method in the software. The data aggregation center uses the S3C2440A chip of Samsung Company as the main control chip, uses the internal memory controller, the LCD controller and other resources and ZigBee wireless module to realize the display of the physiological parameters data. Storage and multi-parameter joint monitoring from the monitoring terminal to the data aggregation center. The system preliminarily realizes the monitoring and wireless transmission of many physiological parameters, and can monitor ECG, blood oxygen, blood pressure and pulse in real time. Each monitoring module is optional module, which improves the flexibility and expansibility of the system. It has played a positive role in the development of health monitoring system.
【學位授予單位】：北京郵電大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：R318.6

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