Research And Design Of Wireless Physiological Parameters Monitoring System

With the increasement of aging problem in China society, people pay more attention to their own health problems, physiological parameters monitoring system slowly appeared in people’s daily life. Observing these parameters can prevent disease burst, also can help users know their physical condition.Therefore, human physiological parameters monitoring equipment is designed in this paper that can collect the user’s heart rate, pulse, body temperature and other physiological parameters and can transmit them to the PC monitoring center in a way of wireless communication. There are many advantages, such as small volume, convenient operation, economic and durable.The system design is based on the idea of modular design in the paper, and selected the STM32F103ZET6 as the micro controller unit. The BMD101 module is used to collect the ECG(Electro Cardio Graph), as the same time, the OEM(Original equipment manufacturer) module is used to gather the pulse, oxygen saturation data. Besides them, the DS18B20 sensor is used to get the human body temperature with the method of contact measured. Wireless communication module mainly uses the WiFi module- ESP8266. The selections of those modules are following the principle, which are smaller volume, lower cost and stronger anti-interference. These characteristics are in line with the portable design, which is convenient for the wearers in the daily life. The monitoring center is programmed by MFC(Microsoft Foundation Class). After the comparison and analysis among wireless transmission protocols, the TCP/IP network protocol, socket communication and multi threading technology are used to design the PC monitoring interface, which can realize that receives the physiological parameters and displays their changes.Through the design of system hardware and software, the system can realize that monitors the human physiological parameters and transmits them to themonitoring center in experiments. And it also can store the data to the local database. The experiment results show that the system is running stably, the parameters measured by the system are accurate, and the system is satisfied with the design requirement. When the parameters are abnormal, the monitoring center will alarm the doctor and the device will alarm at the same time to remind the persons around users, so that patients can get the effective treatment in the face of disease outbreaks.