在我国人口老龄化持续加剧的今天，“空巢老人”的数量急剧增多，独居老人的安全已成为备受关注的社会问题之一。此外，大多数现有的监控系统使用自主按钮的报警模式，然而老人在突发状况下，通常会进入无意识状态，因此只依赖老年人自身按键报警的可能性不高，对其生命安全的防护，不能起到实际作用。随着开源的Android平台移动端操作系统的不断发展与优化，以及这一操作系统的兼容性与多功能性，使采用Android移动端上自有的重力传感器进行人体跌倒检测成为可能，当检测到人体跌倒时，立即定位老人当前位置，并直接呼叫预先设定好的的紧急联系人；在无法联系紧急联系人时，直接拨打急救电话，可以帮助老年人在摔倒后及时进行救助和治疗。
As China’s aging population continues to increase today, the number of “empty nesters” is increasing rapidly, and the safety of elderly people living alone has become one of the social problems that attract much attention. In addition, most existing monitoring systems use the autonomous button alarm mode; however, in case of emergencies, the elderly usually enter into an unconscious state. Therefore, it is not possible to rely only on the buttons of the elderly to alarm, and the protection of their life safety cannot play a practical role. With the continuous development and optimization of the mobile operating system of the open source Android platform, as well as the compatibility and versatility of this operating system, it makes it possible to use the gravity sensor on Android mobile terminal for human body fall detection. When the human body falls is detected, the elderly person’s current position will be immediately located and the preset emergency contact person will be directly called. When the emergency contact cannot be contacted, the emergency number can be directly dialed to help the elderly timely rescue and treatment after falling down.
