基于多传感器和Android的老人安全智能监护系统
The Elderly Safety Intelligent Monitoring System Based on Multi-Senors and Android

设计与实现了一套集数据采集和远程监测的老人安全智能监护系统，硬件部分包括心率采集、防摔倒数据采集、GPS定位、语音识别、GSM语音通话和无线传输等电路。利用BMD101心率采集电路检测人体心率信号的异常，通过MPU6050获取人体行为姿态的加速度与角度，用于检测有无摔倒。将采集的心率和防摔倒数据通过MQTT协议上传至云服务器，采用HTTP协议获取和解析实时数据，并通过心率曲线图和行动轨迹的形式显示在远程Android移动终端。经系统测试发现，当检测到异常心率值或老人有摔倒行为时，系统将自动拨打至预置电话，以便及时发现意外和采取措施。老人可通过一键拨打和语音识别等形式实现与监护人的通话，提高智能设备对老人的友好性。
A set of data collection and remote monitoring of safety intelligent monitoring system for the elderly was designed, the hardware part included heart rate collection, anti-fall data collection, GPS positioning, voice recognition, GSM voice calls and wireless transmission circuits. The BMD101 heart rate acquisition circuit was used to detect the abnormality of the human heart rate signal, and the MPU6050 was used to obtain the acceleration and angle of the human body’s behavior and posture to detect whether there is a fall. The collected heart rate and fall prevention data were uploaded to the cloud server through the MQTT protocol, real-time data was acquired and analyzed by HTTP protocol, and displayed on remote Android mobile terminals in the form of heart rate graphs and action trajectories. The system test found that when an abnormal heart rate value is detected or the elderly has a fall behavior, the system will automatically dial the preset phone in order to detect accidents and take measures in time. The elderly can communicate with their guardians through one-key dialing and voice recognition, which improves the friendliness of smart devices to the elderly.