The Journal of Engineering | |
Design of the intelligent energy-saving cardiotachometer based on Mbed | |
Yuxiang Guo1  Chenhui Zhu1  | |
[1] Glasgow College UESTC Joint School University of Electronic Science and Technology of China; | |
关键词: tachometers; led displays; cardiology; low-power electronics; energy conservation; biomedical measurement; wearable device; battery life; heartbeats; led modules; audio p-type metal oxide semiconductor; photoelectronic sensor; pulse signal; electronic signal; core microprocessor; mbed; photoelectric mode cardiotachometer; intelligent energy-saving; light-emitting diode; | |
DOI : 10.1049/joe.2018.9052 | |
来源: DOAJ |
【 摘 要 】
In order to deal with the shortcomings of a photoelectric mode cardiotachometer, such as wasting energy and slowly refreshing results, this study mainly focuses on a real-time displayed, portable, low-cost, and energy-saving cardiotachometer. The design is based on the Mbed, which is the core microprocessor, controlled and dispatched by the built-in function. Before filtering and amplifying the electronic signal, the pulse signal is collected by the photoelectronic sensor at the beginning of the whole process of the cardiotachometer. The energy-saving function can be achieved through audio p-type metal oxide semiconductor to switch on and off the light-emitting diode (LED) which is in the sensor. Eventually, the real-time ratio of the heartbeats and the waveforms can be displayed on the two 8 × 8 LED modules at the same time with overall energy-saving of about 50%. This design can be applied in many fields focusing on long battery life and portable, especially as a part of a wearable device.
【 授权许可】
Unknown