Voice enabling system for blind people using gps and gsm

DEPARTMENT OF TELECOMMUNICATION,PESIT

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VOICE ENABLING SYSTEM FOR BLIND PEOPLE USING GPS AND GSM

05/05/2016

Under the Guidance of Ms. Shruti P B

ASST. PROFESSOR

PROJECT TOPIC

PRESENTED BY:

ABHIJIT GHOSH 1PI13TE400


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Contents Problem statement Motivation Introduction Block diagram Dspic 30f4013 Importance of GSM Importance of GPS APR 9600 Ultrasonic Sensor MAX 232 Power supply Overview Software Architecture Algorithm Simulation circuit Diagram Advantages & limitation Conclusions References

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Motivation

Personal guide for blind people.

Security in travel is primary concern for every one.

Accident spot can be detected.

SMS can be received from the spot.

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For most of us, who are normal and healthy at least can reach the destination somehow but for some unfortunates like the blind people finding a location becomes an extremely tedious process. They will be in need of continuous help and companionship till they reach their desired destination.

Problem Statement

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Introduction


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Presently, blind people use a white stick as a tool for directing them when they move or walk.

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

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DSPIC30F4013

16X2 LCD

Power Supply

MAX 232

GSM Modem

GPS Modem

MAX 232

Ultrasonic Sensor

APR 9600

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Block Diagram


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High-Performance Modified RISC CPU: • Modified Harvard architecture • C compiler optimized instruction set architecture • Flexible addressing modes • 84 base instructions • 24-bit wide instructions, 16-bit wide data path • Up to 48 Kbytes on-chip Flash program space • 2 Kbytes of on-chip data RAM • 1 Kbyte of non-volatile data EEPROM • 16 x 16-bit working register array • Up to 30 MIPs operation: - DC to 40 MHz external clock input - 4 MHz-10 MHz oscillator input with PLL active (4x, 8x, 16x) • Up to 33 interrupt sources: - 8 user selectable priority levels - 3 external interrupt sources - 4 processor traps

dsPIC30F4013 Microcontroller

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Importance of GSM

GSM (Global System for Mobile communications).

GSM is a digital cellular communications system.

It is used for transmitting mobile voice and data services.

International roaming capability.

Encryption capability for information security and privacy

Better security against fraud (through terminal validation and user authentication)

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Importance of GPS

GPS (Global Positioning System)

GPS always transmits the data

GPS Receiver gets the location information from satellites.

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Features • Single-chip, high-quality voice recording & playback solution - No external ICs required - Minimum external components • Non-volatile Flash memory technology - No battery backup required • User-Selectable messaging options - Random access of multiple fixed-duration messages - Sequential access of multiple variable-duration messages • User-friendly, easy-to-use operation - Programming & development systems not required - Level-activated recording & edge-activated play back switches • Low power consumption - Operating current: 25 mA typical - Standby current: 1mA typical - Automatic power-down • Chip Enable pin for simple message expansion

APR(Automatic Playback Recorder) 9600

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Ultrasonic sensor Detect obstacle around 80cm.

5v operating voltage.

Operates between 25khz to 500khz.

Sense at an angle of 120 degree

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MAX 232

MAX 232 is an dual driver/receiver

It is used to convert the TTL/CMOS logic levels to RS232 logic levels during serial communication of microcontrollers with PC.

RS-232 TTL Logic-25V to-3V +2V to+5V High+3V to+25V 0V to +0.8V Low

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Power Supply

• We have used two 6 volt batteries (AS GPS,APR & MICROCONTROLLER WORKS AT 5V).

•To get 12v power supply for GSM use the batteries in series.

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Overview

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Software Architecture

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Start the program. First initialize all the peripherals. Initialize USART and LCD. If obstacle is sensed then we get the voice output as 1,2. If the obstacle didn’t moved we will get the voice output in 3,4. If the toggle switch is high (accident occurred) at that time we

get the voice output at 5 and we receive the G.P.S location via G.S.M.

Stop the program.

Algorithm

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Simulation circuit Diagram

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Advantage and Limitation

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Conclusion

The positioning is done in the form of latitude and longitude along with the exact location of the place, by making use of Google maps.

The advantage of the system lies in the fact that it can prove to be a very low cost solution to millions of blind person worldwide.

The combination of various working units makes a real-time system that monitors position of the user and provides dual feedback making navigation more safe and secure.

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References GPS Talking For Blind People Ameer H. Morad Al Balqa Applied University, Faculty Of Engineering Technology, Jordan , JOURNAL OF EMERGING TECHNOLOGIES IN Web Intelligence, Vol. 2, No. 3, August 2010.

Location Finding For Blind People Using Voice Navigation Stick Pranjali R Phirke, Jayshree Pande, Prof. Archana Singh International Journal Of Engineering And Technical Research (IJETR) ISSN: 2321-0869, Volume-3, Issue-1, January 2015 .

Voice Operated Outdoor Navigation System For Visually Impaired Persons Somnath Koley#1 , Ravi Mishra#2 1#M.E (Student), Electronics & Telecommunication, CSVTU SSCET, Bhilai, India *2professor Electrical & Electronics Engg, CSVTU SSCET, Bhilai, India . International Journal of Engineering Trends and Technology- Volume3Issue2- 2012

Voice Based Guidance And Location Indication System For The Blind Using GSM, GPS And Optical Device Indicator M. Naveen Kumar#1 , K. Usha*2 #M.E Student, *Associate Professor Department Of ECE, M.V.S.R. Engineering College, Nadergul, Andhra Pradesh, India. International Journal of Engineering Trends and Technology (IJETT) - Volume4 Issue7- July 2013


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References

Website: www.howstuffworks.com www.discovercircuits.com www.answers.com www.radiotronix.com www.WineYardProjects.com Magazines: Electronics for you Electrikindia Let us Go Wireless

Text Books: Working with GSM Network By Cruis Leanardo Electrical Applications with GSM By Morris Hamington


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