Hypertension is a common chronic disease, and the importance of blood pressure detection is obvious. By regularly using a household sphygmomanometer to detect human blood pressure, we can prevent the occurrence of hypertension by understanding blood pressure and taking corresponding measures to maintain health. Electronic sphygmomanometer is a medical device used to measure blood pressure. The design of sphygmomanometer basically uses the oscillometric method. The measurement of blood pressure is to identify blood pressure by establishing the relationship between systolic pressure, diastolic pressure, average pressure and sleeve pressure shock wave. In the measurement process, the electronic sphygmomanometer can measure the pressure and fluctuation generated when the blood flow passes through the blood vessel. After receiving these fluctuations, the pressure sensor will amplify and process them, and then output the results on the LCD screen.

Function module composition of intelligent sphygmomanometer design

Pressure sensor and signal conditioning circuit: The responsible object is to measure the air pressure value in the inflatable cuff, convert the air pressure value into a signal and transmit it to the control unit.

Driver circuit: The responsible object is to assist in amplifying the output signal of the main control unit, transferring it to control the power component, and realizing the function of inflation and deflation of the cuff.

Main control unit: specially responsible for the coordination and synchronization of each functional unit of the intelligent sphygmomanometer in the whole measurement process. It also has the ability to process data and can convert pressure values to displayed values.

LCD display and function button unit: Assist users in providing a good human-computer interaction environment, which can display the results on the LCD panel according to user needs.

System power supply unit: This unit mainly supplies power to the entire system.

The design of the sphygmomanometer can be carried out according to the customer's functional requirements. The measurement results can be automatically and synchronously pushed to the children's hands in real time with the graphical results and the new voice broadcast function. The blood pressure and heart rate risks can be predicted in a timely manner, and the health of parents can be understood at any time.