CornellEngineeringNancy E. and Peter C. Meining School of Biomedical Engineering

▪ Yiyi Fang ▪ Meichen Liu ▪ Luyun Zhang

TEcho

Multi-Sensor-Dependent Blind Assistive Glasses

Introduction:There are roughly 285 million people suffering visual impairment worldwide, and 3.9% of them carry it from birth. This device is designed to aid those with low vision and is especially focused on people that lost their vision during early age. The technology we developed transfers visual information into auditory signals for the blind to acquire spatial details of a environment. Such multi-sensor correlation device enables them to better navigate and perform daily work. Users will wear a glasses-shaped device with camera and information detectors embedded while portable signal processor(NI myRIO) is carried in their pack. Visual impairment people are expected to wear this device constantly so they can utilize those sensors via brain self-learning process as a substitution of human eyes.

▪ Instructor: Newton de Faria

Compass + Accelerometer (embedded in myRio)

Obtain the orientation and acceleration information. ○ Calculate the angle between the true north

and current direction to realize navigation.

WebcamAcquire image at 5 seconds

per frame with 160x120 pixels. ○ Edge pixel information is

transferred to different sound frequency.

Ultrasonic Range FinderMeasure the distance between the

object and the user. ○ Distance information is codified

to control sound volume.

NI myRIOReal time process image and data from sensors.

○ Generate sound on the FPGA (A field-programmable gate array).

EYES

BRAIN