目的 研制一种可穿戴式的跌倒检测报警系统,能够在佩戴者跌倒时发出报警,并通过移动网络通知相关人员.方法 通过陀螺仪搜集人体3轴加速度信息,采用蓝牙将数据发送到手机端APP并进行计算与判别,若判别为佩戴者跌倒,则APP控制手机发出报警并通过移动网络通知相关监护人员.结果 经测试,本跌倒报警系统可穿戴,重量轻,跌倒状态识别准确,能够在跌倒时发出报警,并通过移动网络通知相关监护人员.结论 本系统采用新型6轴运动处理组件及蓝牙4.0芯片,整机功耗低,一颗纽扣电池即可运行超过半年;数据在手机端进行处理,处理速度快、精度高,实时性好,判断准确;本系统能够准确判别跌倒状态,及时发出报警,在老年人等特殊人群发生跌倒后能够及时获得救助.%Objective This study aimed to develop a kind of wearable fall detection alarm system, which could send out alarm when the wearer fell down, and informed relevant staff via mobile network. Methods The triaxial acceleration information of the wearer was gathered by gyroscope, then the data was sent to the mobile phone APP by bluetooth for calculation and distinguish. If there was a fall in the discriminant for the wearer, the APP control mobile phones would send out alarm to related care workers via the mobile network. Results After testing, this fall alarm device was comfortable to wear, and was with features of light weight, falling state recognition accuracy, good alarm effect, informing related care workers via mobile network. Conclusion This system is designed by adopting the new type 6 axis motion processing module and bluetooth 4.0 chips. The whole machine is low power consumption, and a button battery could run more than half a year. The data processing is conducted on the mobile, with high processing speed, high precision, real-time and accurate judgment. This system can accurately distinguish fall state and send out alarm timely. The special people such as the olds can receive timely aid after fell down.
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