本工程基于HKD-10B数字心电传感器和MU-203无线通信开发板，实现心电数据测量，分析和紧急情况报警的功能。-Based on the HKD-10B digital ECG sensor and MU-203 wireless communication development tools, this project implements the function to collect, analyze and emergency alarm for the ECG data.

选用MQ2气体传感器对现场可燃性气体浓度进行检测，采用功能和性价比较高的STC89C52单片机作为中央处理单元，对浓度信号进行采集、数据处理、显示、报警及打开排气装置等工作。-Using mq2 gas sensor for the concentration of flammable gas field were detected by function and high ratio of performance to price STC89C52 microcontroller as the