SMART BLIND STICK

Smart Blind StickBlind

People who suffer from a severe reduction in vision that cannot be corrected with conventional means, such as refractive correction or medication and reduces a person’s ability to function at certain or all tasks.

IntroductionPresently, blind people use a white stick as a tool for direction, when they move or walk.

Here, we develop a tool which can serve as a blind stick being more efficient and helpful than the conventional one.

Components• Atmega8 microcontroller

• IR sensor

• Dig sensor

• Power supply section (+5V)- onboard

• 7805 and 7812 regulators

• In4007(diode)

• ISP (in-system programmer)

• Capacitor

• Dc jack male /female

• Transformer

Tracking circuit mainly consists of

• Atmega8

• IR sensor

• Dig sensor

• Crystal

• Resistor

• Capacitor

• Transformer

• Diode

Software developmentFirmware for the modules has been developed with the help of WinAvr compiler and AVR studio. The controller is programmed with help of AVRDUDE.

The software is written in c language and compiled using the open source compiler Avr-gcc. For project management AVR studio was used.

Applications• Help blind people to easily walk to

destination.

• Help blind people for obstacle detection.

• Alert blind people about dig.

Advantage• Auto detection.

• Having feature to left & right turn alarm signal.

• Obstacle detection with indication support.

• Dig information with indication alarm.

• Simple to use & low cost

• Auto detection of station & speech message will help blinds& physical disables to recognize the destination.

• Auto alarming system

• Fully paperless system

• With little software & sensor up gradation, can extensible to any other application & specification.

Disadvantages• Limited & fixed route to follow daily

routine.

• Till now, GPS can’t attach in it due to 40 meter to change coordinate as to follow the path/ new path.

• Little sensor support in these fields

Future scope• GPS can help blind peoples to source &

destination route information.

• GPS can help to find the shortest & best path as accordingly to Google/ Bing map based on real time coordinates.

• GSM attachment can help in future for any immediate causality help

THANK YOU