CAJ | 학술논문

针对心电图数据采集仪器体积大、功耗高、移动性能低和续航能力差等问题，设计一种基于 MSP430的便携式心电图采集系统。该系统以 MSP430F149单片机为主控芯片，从专用生物电采集芯片 ADS1291采集前端通过 SPI 接口获取2个24位数据，经过解码、数字滤波以及重新编码后存储到外部 Flash 芯片中，同时将处理后的心电数据通过串口发送至HC-05蓝牙模块，并扩展至具有蓝牙通信功能的移动终端。测试结果表明，该系统可准确、实时地测量人体第一导联心电图，具有体积小、功耗低、准确性和稳定性高等特点。
침대심전도수거채집의기체적대、공모고、이동성능저화속항능력차등문제，설계일충기우 MSP430적편휴식심전도채집계통。해계통이 MSP430F149단편궤위주공심편，종전용생물전채집심편 ADS1291채집전단통과 SPI 접구획취2개24위수거，경과해마、수자려파이급중신편마후존저도외부 Flash 심편중，동시장처리후적심전수거통과천구발송지HC-05람아모괴，병확전지구유람아통신공능적이동종단。측시결과표명，해계통가준학、실시지측량인체제일도련심전도，구유체적소、공모저、준학성화은정성고등특점。
ECG data acquisition instruments are bulky,high power,low mobility and endurance,so a kind of portable ECG acquisition system based on MSP430 is designed.With the main control chip MSP430F149,the system gets two 24 bits of data from special bioelectricity sampling chip ADS1291 front end through the SPI interface.After decoding,filtering and re-coding,data is stored in the external flash chip,at the same time it will be processed via a serial port and sent to HC-05 Bluetooth module,and extended to mobile terminals with Bluetooth communication functions.The test results show that the system can accurately measure the first lead electrocardiogram (ECG)of human body,has small volume,low power con-sumption,high accuracy and stability,etc.