08-10-2016, 12:32 PM
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Abstract:
“Objective of this paper is helping the blind/old persons travelling easy and illiterate people as well as pedestrian people using an interactive embedded Wireless Sensor Networks. The blind person in the bus station is identified with RF communication. The blind informs the location he needs through the microphone which is given to the voice recognition system which produces the output of bus numbers in the voice synthesizer unit which is heard in Speaker. Then this location is transmitted to the transceiver in the bus. If the names in the transceiver in the bus matches with that of the name send by the blind, then there is an alarm in the bus unit alerting the presence of blind and a voice to the user's headset that the particular bus has arrived. With the help of GPS tracker connected with audio output the destination chosen by the blind is intimated when the bus reaches the correct location.
The project deals with sensor application with wireless communication (RF). The sensor based node is operated with the micro controller (ARM7LPC2148, PIC 16F877A). The positioning is done by the GPS(global positioning system).the blind person or older person he find the way by using GPS modem. The sensors indicate the free place in bus section.
Two units namely the blind unit and the bus unit consisting of different modules PIC controller, voice synthesizer, and (voice) speech recognition system, both the units the blind passengers identifies and gives alert the bus it has to board. The microcontroller controls the system and the GPS module and the Speech recognizer that are used for required bus tracking the location and knowing the
desired location given by the passenger respectively. If the location matches, then the voice synthesizer will notify the passenger via speaker connected to the passenger unit to get down at the desired location. in addition to this gas sensor and fire sensor detects any fire and gas accidents in bus and automatically controls the bus environment through actuators and gives alert to passengers’ inside the bus.”
Keywords: ARM7, EPIC, GPS, RFID technology, Audio input & output, indication
1. INTRODUCTION:
One of the main reasons we are interested in the design and desire to deploy this system are: In addition to the facilities such as subway which are developed fairly complete, with sound and image messages, camera network is very modern there, so that it is very well to support for people with disabilities, especially blind people. Another way the blind people or disable people very convenient but the cost is so expensive, this is not an advantage to blind people usually take taxi. For the bus – the transportation was developed long time with network was very complete. It is waste if blind people cannot join in bus traffic. For reasons above we show a system: U-Bus system for the Blind. This system is designed for the purpose to transfer sound message of bus number which is parked in front of the blind. So that this system can help blind people to recognize bus which blind people want to take without the help of others. With this system. Nowadays have many systems support blind people are researched and developed. Not only simple applications such as Braille keyboard for the blind the blind when crossing the street, but also complex systems such as car for the blind and so many other systems. Maybe the practicality of the
system needs some time but for the purpose of the blind are closer to society, to avoid the inferiority with society as well as research, design and deployment of this system is absolutely necessary. The project aims in designing a system which is capable of alerting destination is reached. The explosion in wireless technology has seen the emergence of many standards.
2.EXISTING SYSTEM:
No indication for blind people if any case the blind persons wants to go anywhere means they have to choose taxi or with the help of any other persons. And no alert for blinds.
3. PROPOSED SYSTEM:
The main aim of the project is providing bus information to the blind person. The person find out the bus by using this system The position and number of seats available inside the bus find out through some special sensors and wireless communication modules for information sensor network.
This module is used for high level communication in personal area networks which has low This displays the location and thus helps the User to get down to the desired location power and low voltage wireless applications.. Its transmission distances are between 10-100 meters line of sight. The bus receives the signal from User person’s unit and the bus stops at bus station for enabling the person to enter the bus. Microcontroller PIC16F887: The PIC controller in bus unit is used for the interfacing of the LCD display. The bus receives bus number which is required by the blind in RF communication area. It will compare number with itself. And send back user unit its number when it stop at the blind area. The blind can hear number of the bus which they want to take when this bus stop in front of the blind.
In this approach gives Indication through sensor about required bus arrived or not, is there any seat available or not through Automatic operation using Wireless communication and Position finding through GPS
Working Principle:
The blind with PDA (Integrated RFID tag) go to Electromagnetic field of BS. The blind can search destination and register the bus number which they want to take to BS. One of features of BS is RFID Reader, when the blind in the bind area, BS will announce exiting of blind people to them. Other feature BS is transfer to buses number that the blind want to take. The bus receives bus number which is required by the blind in RF communication area. It will compare number with itself. The blind can hear number of the bus which they want to take when this bus stop in front of the blind. The blind can easy to take the bus. The working of the system includes two units: The bus unit and the Blind unit.
This module is used for high level communication in personal area
networks which has low power and low voltage wireless applications.. Its transmission distances are between 10-100 meters line of sight. in bus receives the signal from User person’s unit and the bus stops at bus station for enabling the person to enter the bus. Microcontroller PIC16F887: The PIC controller in bus unit is used for the interfacing of the LCD display. This displays the location and thus helps the User to get down to the desired location.
5.1. Blind Unit:
5.1.1 ARM 7 LPC2148:
LPC2148 microcontroller board based on a 16-bit/32-bit ARM7TDMI-S CPU with real-time emulation and embedded trace support, that combine microcontrollers with embedded high-speed flash memory ranging from 32 kB to 512 kB. A 128-bit wide memory interface and unique accelerator architecture enable 32-bit code execution at the maximum clock rate. For critical code size applications, the alternative 16-bit Thumb mode reduces code by more than 30% with minimal performance penalty. The meaning of LPC is Low Power Low Cost microcontroller. This is 32 bit microcontroller manufactured by Philips semiconductors (NXP).