The Research Of Acquisition And Analysis System Of Pulse Based On Mobile Terminal

In recent years,researchers are putting more and more attention on traditional Chinese medicine(TCM).Among variably diagnostic methods in TCM,the pulse diagnosis plays a significant role resulted from its containing abundant human physiological information.In the development of the objectification of TCM,the acquisition and analysis of pulse signals have made great achievements.However,those pulse acquisition systems currently on the market still have fairly severe shortcomings,such as high cost and inconvenient to carry and so on.To solve these problems,we investigated the principle of pulse diagnosis,introduced modern mobile medical technology,and designed portable pulse acquisition and analysis system based on mobile terminals.Based on existing pulse acquisition systems,we utilized low-power,highly integrated ARM microprocessors to collect pulse data.Through the combination of the MINI motor and cam mechanically,we designed a new type of cam pressurization system to acquire floating,medium and heavy pulse pressure.Detecting potentiometer was set coaxially with the MINI motor.Microprocessors could monitor the position of the cam in real time,finally controlling the pressure more accuratelyAccording to the physiological characteristics of human wrists,we also designed the new wristband model.The core hardware circuit and cam pressurization systems were all packaged in the same wrist strap.The interaction of pulse data collected from the wrist strap and mobile phones was managed through USB.The part on the smartphone processed and saved pulse data.The optimal pressure model was proved and established based on the vascular model.Comparing with the standard pulse system and analyzing pulse characteristics of atherosclerosis patients,the results manifest that: our system can accurately obtain the pulse information of normal humans and patients with atherosclerosis.Furthermore,through the smartphone connecting to the server,individual database can be established and pulse data can be processed deeply concurrently,which will provide users with accurate and individually unique medical service.