The National Innovation Awards of Taiwan Government on the blood flow sensor

Institute of Electrical and Control Engineering     2020/12/01
National Innovation Award
  • GOOD HEALTH AND WELL-BEING
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  • National Innovation Award
This program is designed to design a front-end analog circuit for a non-invasive, piezoresistive blood pressure sensing array with easy access to the data. The circuit has an automatic correction function. This is a self-correcting system for a sensor array designed for optimal array of pulse blood pressure sensor arrays, which is aligned with the signal between the sensors in the array sensor, corrected in the interpolation mode, Signal variation, so that subjects do not have to worry about the location of each time the problem of accurate. So far has been completed pulse signal sensing and signal processing, fruitful. Has established a front-end analog read circuit and digital analog converter, which front analog read circuit operation mode is through the Wheatstone bridge sensor resistance sensor deformation of the resistance changes, the output of the corresponding voltage signal, and a The amplifier will be the signal for the amplification action; and then analog signal into a digital signal before the need to use a low-pass filter out the signal contained in the high-frequency noise components to avoid the case of Aliasing (Aliasing) And finally connected to a successor analogue digital converter (Successive approximation ADC) analog signal will be converted into digital signals. The resulting wafer is optimized for measurement and performance, and the printed circuit design and planning of the printed circuit are completed. The wireless transmission circuit will further use the Bluetooth transmission and will be integrated into the sensor to optimize the design results in the form of system chips (SoC) chip off the assembly line. Through the program designed by the system of the chip, the Bluetooth transmission mode to send the signal to the subprogram four to establish the cloud database for blood pressure and vascular compression deformation of the alignment and correction, transmission to the computer, mobile phones and other devices to obtain immediate blood pressure, in order to facilitate observation and monitoring.