Research And Design Of Pulse Wave Monitoring System Based On Embedded

The pulse wave signal contains a large number of relevant health information,so the pulse signal has been the attention of people, in the medical field, is highly valued and widely studied. If people want to timely inspection information related to their cardiovascular and pulse rate, must to the point of care with the help of some large testing equipment, this will take some time and cost of the users, to the user’s daily life bring some trouble,so design a small portable real-time monitoring system for auxiliary treatment is particularly important.This topic on the basis of fully study the pulse theory knowledge.The subject completed based on microprocessor STM32 and combined with the embedded technology of the overall design of the pulse wave signal monitoring system, the design and realization of hardware system and software program based on embedded operating system, the pulse signal extraction, processing, real-time display is the key,Full consideration in the design of the hardware device selection, took into account the problem such as power consumption, impedance matching, signal amplification,using reasonable wiring, makes the optimal function.Using the wi-fi technology realized wireless uploading. Continuous real-time data of acquisition system will be saved in the txt file format in the SD card,It can be used for later viewing and data analysis.The real-time testing results of Monitoring system can be displayed on the LCD screen, to make observation and analysis easy.This design with integrated development environments(Real View MDK) as a development tool, using C language programming.For algorithm design, there are a large number of literature reading and prophase investigation, and on this basis,completes the theoretical design of the optimal algorithm.First of all, with the help of MATLAB software, from MIT-BIH ecg database it read some original data filtering algorithm to test and verify, it is concluded that the parameters of the filter system,simple integer coefficient filter is designed.And then through on-line debugging,algorithm transplantation, the verification results and so on to complete the realization of the software on the hardware platform, and achieved the desired results.This topic has reached the desired effect, completing the hardware circuit of the system, complete the transplantation of the operating system and writing and debugging of system program.This product was designed for the appearance of the watch, it has beautiful appearance, small volume, low power consumption, easyoperation,and many other advantages, the appearance of the delicate and perfect function will make it easy to widespread use in the field of electronic medical products.