基于DSP的非接触式生命参数获取及信息处理技术研究

The Study on The Technology of Non-contact Life Parameter Detection and Information Processing Based on DSP

介绍了一种通过DSP对非接触式生命参数信号进行采集和处理的系统。论述了该系统的软硬件设计以及预处理电路,通过预处理电路放大生命信号、滤除噪声,由AD7705进行采集,送入DSP进行后续处理。详细阐述了AD和DSP的工作方式、接口电路以及软件实现。通过HK2000Cv2.0脉搏传感器仿真非接触情况下人体心跳信号并进行采集。实验证明,该系统可以成功的检测到人体的心跳信号进行显示并对信号做基本的处理。

The system on the technology of non-contact life parameter detection and information processing based on DSP is introduced. It discussed the hardware,software and the pretreated circuitry of the system.The life signal is amplified and the noise is filtrated in the pretreated circuitry,then the signal is sampled by the AD7705 and processed by the DSP .It expatiated the interface circuitry and software implementation between AD and DSP.The non-contact heartbeat signal is simulated by the HK2000Cv2.0 and sampled by the AD.The result of the experiment proved that the heartbeat signal can be detected and displayed successfully and then can be processed fundamentally.