Multi-physiological Parameter Monitor

With the development of the society and the continuous improvement of people’s living standard, people for a long time to meet the basic material needs after began to pursue a healthier life, and more and expect to have a more longevity, more healthy and happy old age. At the same time, by the comprehensive effect of the factors such as the birth control policy, our country the proportion of older people is higher and higher, to the health of the elderly care is an important medical care equipment market. This paper want to design a multiparameter physiological monitor, can fast accurate measurement of blood pressure, blood oxygen saturation, parameters such as temperature and heart rate, and meet the needs of their family’s health and medical care.This paper adopts the inflatable cuff measurement to measure blood pressure and pulse wave and adaptive deflated filling method is used to control the pressure of inflated and deflated standard, make the measurement more quick, the subjects’ less discomfort. This paper adopts the measure through human tissue at the end of the finger light absorption rate to measure oxygen saturation, fast test and measurement results are accurate and suitable for continuous measurement. This paper adopts the infrared remote sensing method to measure body temperature, measuring speed, low subjects discomfort, continuous repeated measurement of different people need for equipment cleaning and disinfection, etc.This paper of the hardware adopts modular design, the function of each parameter are independent of the sensor and the control chip and power drive, eventually integrated into a main chip, realize the multiple parameter measure and record at the same time. The main chip USES STM32 ST company,32-bit high-performance MCU based on ARM, pressure sensor USES freescale MPX5050 pressure sensor, photoelectric sensor selection of Siemens SFH203, infrared sensor selection to the core company of MLX90614 high-precision infrared temperature sensor.To family care, hypertension patients and the elderly community health care, and other functions, this project also addresses the wireless communication module, can be in need of development of functionality, the environment and more environment.