摘要跌倒是危害老年人健康的重要因素之一,如果得不到及时的救助甚至是致命的。因此,设计出一款跌倒检测系统,在不影响老人日常生活的情况下,可以检测到跌倒并且能够及时报警,准确向救护人员发送跌倒位置,对于保障老人的生命安全具有重要意义。84322
本课题研究了一款老人跌倒检测系统,此系统以美国德州仪器MSP430F149为控制器,利用ADXL345加速度传感器采集人体三轴加速度信息,设置了蜂鸣器报警功能。利用GPS模块定位,通过GSM模块将坐标发送到指定人手机上。另外,本系统还设计了跌倒误报功能,通过按键可以取消报警。
通过加速度传感器、GSM无线通信模块、GPS定位模块、复位按键与蜂鸣器,完成了对老人跌倒检测系统的设计。本系统实用性强,能够检测出老人跌倒,可以使得跌倒的老人得到及时的救援,在老年人日常生活当中可以起到重要的保驾护航的作用。
毕业论文关键词:跌倒检测;传感器;GSM模块;GPS定位;可穿戴设备
Abstract Falling down is one of the important factors that harm the health of the elderly。 If they are not rescued in time, it may be even fatal。 Therefore, it is necessary to further study on the elderly fall detection system。 To design a fall detection system which can detect the falls without influence everyday life of the elderly, and can give an alarm in time, accurate to help the sender to fall over the location。 It is meaningful to protection of the old man's life。
In this paper, we study a kind of wearable fall detection system for the elderly。 The system takes the embedded processor MSP430F149 as the controller, and uses the ADXL345 acceleration sensor to gather the acceleration information of the human body with three axes, and the buzzer can alarm。 The GSM module and GPS module are used to locate the position of the old people, and the position coordinates are sent to the designated person on the mobile phone。 In addition, the system also designed a fall of false alarm function, the alarm can be canceled by the button。
Through the acceleration sensor, GSM wireless communication module, GPS positioning module, reset button and buzzer, completed the elderly fall detection system design。 This system has a strong practicability and a high quality completion of the elderly fall detection task can get timely rescue the falls in the elderly, in the daily life of the elderly can play an important role in escort。
Keywords: Fall detection; Sensors; GSM module; GPS module; Wearable devices
目 录
第一章 绪论 1
1。1 研究背景及意义 1
1。2。1 跌倒检测系统分类 1
1。2。2 基于穿戴式的跌倒检测系统的研究现状 2
1。3 论文主要研究内容 5
1。4 本文的组织结构 6
第二章 系统硬件设计 8
2。1 系统硬件架构 8
2。2 主控制器选型与设计 9
2。2。1 主控制器的选型 9
2。2。2 主控制器的硬件设计 10
2。3 加速度传感器模块相关电路设计 11
2。3。1 加速度传感器的选型与简介 11
2。3。2 加速度传感器的硬件设计