基于无线探头的肝储备功能检测仪的设计

摘要

为了检测人体脉搏和血氧信号,评估人体的肝脏储备功能,开发一种基于无线探头的三波长肝储备功能检测仪.设备以STM32微处理器为核心设计了模拟式信号采集探头,然后利用nRF24L01射频模块建立探头与主机之间的无线数据通信,最后设备在基于S3C2440平台的主机上对数据进行处理和显示.测试结果表明,该系统运行稳定可靠,能够实时有效地检测人体相关生理参数,而且功能强大,使用方便,具备临床实用性.%In order to detect the human body's pulse and blood oxygen signal,and evaluate the liver reserve function of the human body,a new three-wavelength liver reserve function detector based on wireless probe was developed.The analog signal acquisition probe was designed by taking STM32 MCU as the core.The RF module nRF24L01 is used to realize the wireless data transmission between the probe and host computer.The data is processed and displayed on the S3C2440-based host computer.The test results show that the detector has stable and reliable running,and can effectively detect the physiological parameters related to human body in real time.The detector has powerful function,convenience use,and clinical practicability.