Wearable Navigation Device for Virtual Blind Guidance

This device enables the blind to move from one place to another by wearing the navigation device. This system is based on the microcontroller with speech output. This may also give the information about the urban walking routes. Blind could be avoids the obstacle by using the ultrasonic sensor. They can be easily detect the object in-front, back, left, right side of the blind. Camera that capture the image of the object and that will sent the image to the raspberry pi board. The raspberry pi board is coded with the python programming language. Then through the principle of optical character recognition they will be convert the image to speech or voice signal. Thus the blind can hear the object name, sign of direction symbol etc. It makes the blind to go to the out-door environment and it make them to buy the product and see their quality through the camera and guide them by headphone. This can help the blind to move to various places of their own without depending others. It may also be used for indoor navigation. The power supply is provided through the battery so it can be taken to anywhere. This uses the TTS software because some adult and childrens face diffuculties on reading the text. But it easily coverts the documents, e-pages and web news into the speech signal. It makes the self-navigation. The proposed system has more features than other similar systems.