毕业论文移动版

摘要新型导盲机器人的设计目的在于辅助视力障碍者在室内行走及寻物，并增强视力障碍者的环境适应性，使人-机-环境之间保持更佳良好的交互性。它利用多种传感器对周围环境进行探测，将探测的信息进行处理然后做出相应的反馈提供给驱动装置和视障者，以帮助使用者有效地避开障碍。世界上视觉障碍者数量众多，而他们只能用60%的感觉来获取经验。因而设计一款实用的导盲机器人来帮助视觉障碍者是十分必要的。49506

本文介绍了新型导盲机器人的组成、定位和软件控制流程。通过超声波、红外、RFID及语音识别等多模块信息交互融合，此机器人可轻松的实现室内避障及语音寻物等多种功能。

本文在综述国内外现有导盲辅助工具特点的基础上，确定了导盲机器人的总体方案。机器人行走机构采用1个万向轮和2个差动轮的轮式结构，在两个差动轮中，有两个是由驱动电机，从而控制车体行进方向，机器人前进的动力由使用者自身提供。机器人采用西门子S7-200控制，配备RFID射频传感器、红外传感器、超声波传感器等检测环境信息，并具有语音提示功能。

毕业论文关键词:RFID;避障；传感器；PLC；语音识别

Abstract The new seeing-eye robot design aims to assist disabled vision in indoor walk and searching for people, and enhance the environment adaptability of visual disabilities, and it can keep a good interactivity between person-machine and environment. A variety of sensors are used to detect the surrounding environment, in order to help users avoid obstacles effectively, the robot will dispose the information detection and making a corresponding feedback for clients with visual impaired and driving device Throughout the world，the number of blind is numerous，and the blind have to use 60％ abilities of sensory．Designing a sort of practical blind guiding robot to help the visual impaired persons has great significance．    

This paper introduces the new seeing-eye robot composition, positioning and software control process. Through the ultrasonic, infrared, RFID and speech recognition and module information interaction fusion, the robot can be easily realize indoor obstacle avoidance and speech found a variety of functions such as objects.

According to the advantages and disadvantages in the blind seeing-eye robot at home and abroad, a portable and reasonable general scheme is designed. The walking mechanism of the robot is the wheel-structure. It has one steering wheel which is driven by the motor and two universal wheels. The steering wheel controls the marching direction of the robot. The progressive power of robot is provided by the user. A microprocessor is used to control the behaviors of the robot. And the robot detects the environment with four types of sensors including Ultrasonic Sensor, Infrared Sensor, the Vision Sensor, and a Voice Prompting.

Key words: RFID、Avoiding Obstruction、Sensor、Speech recognition

目  录

第一章 绪 论 1

1.1 选题的目的和意义 1

1.2 国内外研究现状及存在的问题 2

1.2.1 电子式行进辅具 2

1.2.2 移动式机器人 2

1.2.3 穿戴式行进辅具 3

1.2.4 引导式行进辅具 4

1.3 发展趋势 4

1.4 本文的主要内容 5

第二章  总体方案设计 6

2.1 任务要求 6

2.2 总体方案设计 (责任编辑：qin)