Design of photoelectric pulse device based on Bluetooth
Qiang Liu, Lianghua Lou, Tao Zhang, Yongyun Zhu · 2016
The principle of using photoelectric sensor to detect the pulse waveform is introduced.A low cost photoelectric pulse detection device is designed, which can improve the pulse detection circuit.In addition, the pulse signal waveform display PC is designed by using C# language, and the pulse waveform signal can be transmitted by Bluetooth wireless transmission.The detection device is mainly composed of a signal acquisition circuit, signal conditioning circuit, microcontroller STM32 signal processing, Bluetooth data transmission, PC waveform display components, principle and analysis process of each part of the detecting device are introduced in detail.From the experimental results, the detection method of the device is simple, high sensitivity, and greatly reduce the cost of pulse signal detection.