Human Physiological Parameters For Intelligent Wear Research And Development Of Monitoring System

With the change of people's thinking,more and more people begin to pay attention to healthy problems.At the same time,with the support of various advanced science and technology,wearable medical equipment springs up like mushrooms.Based on the two,the research and development of human physiological parameters monitoring system for intelligent wear is proposed.In order to meet this demand,the health monitoring system designed in this paper can be used to detect data at wrist.The monitoring data can be transmitted to mobile phone or PC through Bluetooth wireless communication technology,and real-time monitoring of body temperature,heart rate and blood oxygen.At the same time,the database system is established on the PC side,and then the personal healthy records are established to realize the personal healthy management.Firstly,the paper studies the power consumption of wearable medical devices.For MCU and wireless transmission technology in smart wearable devices,low power consumption is the main selection condition,and price,volume and other auxiliary factors are taken as auxiliary factors.Then,STM32F103C8T6 is selected as the core processor of the system and bluetooth is choosed as the wireless communication mode.The body temperature,heart rate and blood oxygen in physiological parameters of human health are briefly introduced,and their measurement methods are compared and analyzed.The contact measuring method is selected for body temperature,and according to the characteristics of human tissues and Lambert's law,the photoelectric volume method is selected to detect heart rate and blood oxygen.At the same time,the source with dual wavelengths of 600 and 940 nm is selected to calculate heart rate and blood oxygen.The first-order differential filtering method is used to obtain heart rate.At the same time,the ratio of DC and AC components of the signal is obtained to calculate blood oxygen.Secondly,the hardware and software of the system are researched.The part of hardware includes the design of the peripheral circuit of each module,for example,the circuit design of body temperature,heart rate,blood oxygen,bluetooth transmission,LCD display and so on.Then,the hardware system is completed.In the design of software system,different softwares are choosed through analying the requirements of system.In the software part of the lower computer,the acquisition of physiological signals are completed by designing the driver program corresponding to the sensors,and the corresponding algorithm is used to calculate the heart rate and blood oxygen value in the microprocessor.The value is displayed on the screen in real time,and is sent to the upper computer through bluetooth.In Visual Studio,the upper computer is designed based on C# to realize the visualization of physiological parameters and the display of change trend.Meanwhile,the database module is designed in SQL Sever to achieve the storage of data.Finally,the design of the intelligent wearable monitoring system for the physiological parameters of the people is finished.By debugging and testing the system,it can accurately monitor body temperature,heart rate and blood oxygen in real time.At the same time,the physiological parameters of the human body are saved in the database,and the index parameters of the users' daily life are obtained.Through the analysis and comparison of the index parameters in different time periods,the changing trend of the human body index is obtained,and then the health status of the users is monitored.