摘要老年人出行方式与安全问题一直是困扰每个家庭问题，由于年纪较大，行走不便， 子女工作又忙无法陪同出行，所以老年人的出行存在着诸多隐患，一着不慎便是整个 家庭的不幸。因此步入了现代的老年人们拥有的方便的助性工具便能更加容易、安全 的出行。84538

本次设计由 STC15F2K60S2 控制器模块、电机驱动模块、GSM 模块、显示模块、 电源模块、等构成。本次设计实现了遥控动作、GPS 跟踪定位、液晶显示、一键呼救 的功能。小车不仅可以由老人推着它前进，而且可以通过按遥控器上的左右按钮，轻 松自动向左向右拐弯。其中电机驱动部分通过调节 PWM 波来控制速度，PID 来控制 正反转。除此之外，考虑到家人对老人的关心，本次设计包含了远程监控，家人可通 过电脑，移动手机随时查看老人的行驶路况，老人位置，小车的行驶数据，这样老人 外出安心，家人放心。面对应急情况的一键呼救功能也被添加到本次设计中。

该助行器具有成本低，操作易上手，功能完善的特点，所使用的移动电源容易入 手所以具有一定的实用价值。

毕业论文关键词：遥控；GPS；GPRS；GSM 通讯；一键呼救

Abstract Traveling mode and security issues of the elderly when they leave home has always confuse every family It is difficult for the elderly to walking because of the old age。 Their children are busy on working and can have no time to company their parents。 So there are many potential problems on the traveling modes of the elderly。 A small mistake will cause serious consequences and makes the whole family unfortunate。 So the elderly in  the modern society should have their own convenient tools to travel easily and safety。

This design consists of STC15F2K60S2 controller module, motor drive module, GSM module, display module, and power modules。 It can the functions of achieving operation, GPS positioning, liquid crystal display, a key for help。 This car not only can be pushed forward by the elderly, but can automatically turn left or right by pressing the left and right buttons on the remote control。 The PWM wave and PID control the speed and directions of motor drive。 In addition, taking the family care into account for the elderly, this design including remote monitoring can make family members see their parents whenever they want with GPS through computers or mobile phones。 They can get location and traveling data when they send order to GPS。 So the safe travel of their parents let their children relieved。

The walker has many features such as low cost, approachable operation, perfect function and mobile power and all these make the design valuable。

Keywords: Remote control;GPS; GPRS; GSM communications; a key for help

目录

第一章 绪论 1

1。1 课题研究背景 1

1。2 国内外研发情况 1

1。3 课题意义 3

1。4 助行器简介 4

1。4。1 助行器概念 4

1。4。2 助行器种类 4

1。4。3 电动助行器的概念与分类 4

1。5 本章小结 6

第二章 设计方案论证 7

2。1 单片机介绍及类别 7

2。2 单片机结构及选择 7

2。3  网络无线传输 SIM900B 9

2。4 方案总体设计