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首页> 外文期刊>Journal of Biomedical Science and Engineering >Development of a four-channel cardiovascular signals collector based on STM32 with digital-controlled gain
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Development of a four-channel cardiovascular signals collector based on STM32 with digital-controlled gain

机译：基于STM32的具有数字控制增益的四通道心血管信号采集器的开发

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摘要

To get better methods on diagnosis of cardiovascular diseases and health assessment by comparison analysis of four kinds of cardiovascular signals, which are blood pressure signal (BPS), plus wave signal (PWS), electrocardiosignal (ECS) and cardiac sound signal (CSS), a four-channel signals collector is introduced in this article. This collector is composed of microcomputer STM32F103RB with integrated 12-bit analog to digital converters (ADCs) and some integrated chips (IC) such as PGA113, a programmable gain amplifier with internal calibration channels for system-level calibration. Therefore, the data of four kinds of cardiovascular signals can be both collected by this signal collector with a high precision and output to a computer by universal serial bus (USB) interface, which can also offers power for this instrument. In addition, the gain of input signal can be changed by computer software through USB interface under microchip commands. Thus it has many merits, such as the small volume, low cost, high performance and precision, digital-controlled gain and so on. Consequently, it is convenient to acquire the data of four kinds of cardiovascular signals by it, and a waveform of one sample is shown.
机译：通过比较四种心血管信号，即血压信号（BPS），波信号（PWS），心电信号（ECS）和心音信号（CSS），以获得更好的心血管疾病诊断和健康评估方法，本文介绍了一个四通道信号收集器。该收集器由具有集成12位模数转换器（ADC）的微型计算机STM32F103RB和一些集成芯片（IC）（例如PGA113）组成，PGA113是具有用于系统级校准的内部校准通道的可编程增益放大器。因此，该信号采集器既可以高精度地采集四种心血管信号的数据，又可以通过通用串行总线（USB）接口输出到计算机，这也可以为该仪器供电。另外，输入信号的增益可以由计算机软件通过微芯片命令下的USB接口来更改。因此，它具有体积小，成本低，性能高，精度高，数字控制增益等优点。因此，通过它方便地获取四种心血管信号的数据，并且示出了一个样本的波形。

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