Design And Implementation Of Household Monitor System Based On STM32

Household monitor system is a kind of medical instrument applied to collect andconvert the human’s physiological parameters, and then send them to computer forprocesessing and feedback. Household monitor is a new kind of monitor whichprimarily designed for homecare, and it’s getting rid of the traditional environmentalrestrictions which is different from traditional monitor.Based on the analysis of domestic and foreign monitor, this paper proposed ahousehold monitor based on STM32embedded technology. The system adoptedSTM32as microcontroller and ADS1294as the special acquisition module, tookRS232, Bluetooth and WIFI as transmission means, which completed real-timemonitoring of physiological parameters, such as ECG, respiration, blood pressure,blood oxygen, temperature and so on. Design of this system composed of hardwareand software.The main work of this thesis includes:(1) Analysis the structure and working principle of household monitor, andcombined with the features of STM32processor and ADS1294integrated chip, wedesign the overall structure of the household monitor, and achieved the planning andanalysis of the system’s hardware modules and software programs.(2) Hardware of this system is divided into two parts: signal acquisition andprocessing circuit, the system control circuit. The signal acquisition and processingcircuit includes the collection of physiological signals、preamplifier circuit and theperipheral circuits of ADS1294and STM32. The signal acquisition and processingcircuit achieved the physiological parameters’ conditioning and A/D conversion, afterconversion the digital signal is transimitted to the system control module. Systemcontrol circuit includes button control module, SD card storage module, OLEDdisplay module, wireless communication module, which achieved the operation andcontrol of the entire system, displayed measurement results in real time andcommunications with the PC.(3) After the completion of the design of the hardware platform, this paper usedsoftware development tools to complete the of software design. Including theacquisition of various types of physiological signals, SPI and USART interfacecommunication, OLED display, SD card storage, and wireless communication moduleand PC client interface development, achieved a good human-computer interaction household monitor systems.The household monitor system which this paper designed have been tested, itachieved the function of household monitor and met the expected targets and run withgood stability, to achieve a household monitor design features, laying a solidfoundation for the promotion of household monitor research.