Compact Anti-Falling Alarm Embedded System.

With the decline of the physical function of the elderly, the phenomenon of fall is increasing. It is of great significance to solve the problem of falling of the elderly. In this study, we use STM32F407ZGT6 chip to develop our own embedded system of anti-falling alarm, which is equipped with MPU6050, ATK-PAJ7620, SYN6288, NEO-6M, ADP-L610-Arduino FIBOCOM, LCD screen and other modules. The whole system is compact and easily embeddable in a vest. When the human body is detected to fall, the vest is controlled by the main control to pop up the peripheral sponge pad to do falling prevention. After that FIBOCOM will upload the geographic real-time location information measured by the NEO-6M module to the applet. Number calling and SMS alarming are at the same time. Moreover, the system will switch the highlighted color on the LCD screen and SYN6288 voice module will alarm. In addition, ATK-PAJ7620 detection module can detect the size of the object and light intensity to determine whether the system embedded vest leakage. After testing, the overall system has a falling detection accuracy of 99% based on the multi-threshold difference algorithm. Alarm and data upload are realized within 2.5s.