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Voice-controlled smart assistive device for visually impaired individuals

机译：视障人士的声控智能辅助设备

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摘要

This paper presents the modeling, implementation and testing of an experimental microcontroller (MCU) based smart assistive system which can be used by the visually impaired or blind people. This device includes haptic and audio feedback options from which the user can select. A Smart Phone can be used to control the device using predefined voice commands and Bluetooth connectivity. The device is portable and the purpose of its usage is to warn the user when objects are present on the walking path so collision can be avoided. Distance measurements, between the user and possible obstacles, are performed using ultrasonic echolocation and the data provided by the ultrasonic sensor is processed by a microcontroller, which also handles the feedback part. The hardware design, software architecture and mechanical design of the enclosure as well as the breadboard prototyping are covered in this material. Experimental results performed in different functionality scenarios demonstrate that the proposed system can be successfully used to fulfill its purpose.
机译：本文介绍了基于实验微控制器（MCU）的智能辅助系统的建模，实现和测试，该系统可用于视力障碍者或盲人。该设备包括用户可以选择的触觉和音频反馈选项。可使用智能电话通过预定义的语音命令和蓝牙连接来控制设备。该设备是便携式的，其使用目的是在人行道上存在物体时向用户发出警告，从而可以避免碰撞。使用超声波回声定位来执行用户和可能障碍物之间的距离测量，并且由超声波传感器提供的数据由微控制器处理，该微控制器还处理反馈部分。该材料涵盖了机箱的硬件设计，软件架构和机械设计以及面包板原型。在不同功能场景中执行的实验结果表明，所提出的系统可以成功用于实现其目的。

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