Human Vision is the Most Important Senses

Abstract

Human vision is an important senses which assist the individuals to interact with real world. In this paper we introduce a wearable shoe designed to guide the visually challenged individuals by navigating in day to day life at outdoor, pedestrian by offering vibration and voice instructor to determine the thing and location tracking in their pathway. Here the navigation system which supplies the steering to blind particular person by offering the audio navigation assistance to reach vacation spot. In this technique it detects stable and liquid impediment sending respective instruction to the blind individual through voice message and the system supplies directions to the blind emigrate numerous places using the GPS and GSM system.

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By utilizing this function neighbors of blind person can able to locate their place simply with none panic. To keep away from collision in pathway ultrasonic sensor shall be interfaced with the arduino.

Keywords: Ultrasonic sensor, water sensor, GPS, GSM, Arduino, IR sensor, Text to speech converter, Motion sensor

INTRODUCTION

There are about 38 million blind people and 242 million people with low vision which accounts to 280 million visually impaired people worldwide.

Few blind peoples has distinctive technique to similar to bats through the use of sonograph for figuring out object detection and distance recognition .In India there are greater than 15 tens of millions of blind folks where yearly people needs 2.5 lakhs of donated eyes however eye banks acquire around 25000 of eyes only in that 30% of eyes can’t be used . In this paper, we proposes a navigation system that embrace wearable shoe able to detecting obstacles and offering feedback in outdoor.

Here visually challenged individuals are extra environment friendly in hearing and possesses sturdy perception than regular individuals, hence the system centered on alerting the user through vibration and speech recognition.

The Visually challenged use wearable shoe which can be utilized to detect stable as nicely as liquid obstacles. The system makes use of Arduino Uno Board which offers with microcontroller Atmega 328P.

Here the microcontroller detecting whole alerts from varied sensor used. An ultrasonic sensor used to detect the object obstacles in stable state. The vary of ultrasonic sensor 100cm shall be detected. The sensor which sends input waves to the surface when the person walks on pedestrian and in a position to detect the strong obstacles. Whenever the obstacles are detected a voice instructor is ship to the blind folks phone with the help of Bluetooth chip which is mounted on arduino.

If the obstacles are nearer to the blind people then the arduino Uno sends a warning in the type of audio recognition. It allows detecting the sound at totally different buzzer according to stable and liquid obstacles. This shoe which includes the vibrator as a warning to stay away from any obstacles. Here the wearable shoe allows the blind individuals to keep away from liquid obstacles.By using the water sensor liquid obstacles might be detected .The liquid obstacles might be notified when the wearable shoe is out there in contact with liquid. At the press of single button the system allows the customers to locate their location using the GPS module and sends an alert message to the registered contact of relations to locate the blind person’s exact location.

LITERATURE REVIEW

Navigation assistance for visually impaired (NAVI) [1] refers to systems which would possibly be able to guide blind people. The concept of the system is designing and developing footwear and moveable audio Playing gadget so as to assist blind individual to maneuver on totally different surface and in several path. Blind Assistant Navigation System [2] will guide a blind or visually impaired person to navigate independently inside an enclosed surroundings such as house. A system called Voice Assisted Navigation System for the Blind [3] develops a sensible and intelligent cane which helps in navigation for the blind people .Many researches are being performed to construct navigation system for blind people [4]. This paper primarily focuses on sensing of environment to detect impediment to visually challenged folks and warning concerning the obstacle by the use of vibration along with voice feedback. The system used IR sensor, RGB sensor [5] and arduino to detect impediment and for processing However IR sensors are extremely directional and cheaper compared to others but it may possibly use to detect just one type of impediment like paper.

THE COMPONENT MODULES

There are four main modules in our system. They are Arduino Uno, Ultrasonic sensor, Water sensor, and GPS modules

Arduino Uno

It is used in real time functions. The arduino Uno board is a microcontroller primarily based on the Atmega328.It consists of 14 digital input/output pins in which 6 can be used as PWM outputs. It is a16MHz ceramic resonator and it consists of ICSP header, a USB connection, 6 analog inputs, an influence jack along with a reset button. It has operating voltage 5V, enter voltage 7-12 v, clock speed 16MHz.

Ultrasonic Sensor

The function of this module to establish the gap between the thing infront of the sensor by alerting through sound. Here, ultrasonic sound is emitted from sensor in particular course. If any object is present in front of the sensor the sound is reflected back to the sensor. However we can capable of calculate time takes for sound to reflect again. This is done by

Distance = time *speed

Here the HC-SR04 Sensor is used which has four pins -VCC, ground, Trig, echo. Here Trig is used to ship ultrasonic sound and echo offers us to reflect back the sound. The working voltage of sensor is 5V.

Water Sensor

Water sensor is designed for detecting the liquid leakage, degree of water may be recognized and even it might possibly in a position to sense the rainfall. It can be used to detect the quantity, presence or absence of water. The voltage operates at 5V.

GPS module

This module is used to locate the coordinates of the particular person sporting this system. And this which navigates the person to constantly tracking the individuals the place they present. Whenever the panic button is pressed it’s going to locate the user’s location with their coordinates and request is distributed to GSM module by way of message.

WORKING

The full system is integrated in printed circuit board which is linked with water sensor, ultrasonic sensor that’s fitted in shoe which is worn by blind person

DETECTING OF SOLID STATE USING ULTRASONIC SENSOR

The ultrasonic sensor which is placed in foot of the shoe which shall be pointed within the direction of the person of his or her foot. This ultrasonic sensor will capture the object by sending alerts and calculate the distance of the nearer objects. If any obstacles is situated then it’ll passes or despatched the information acquired to the arduino for further processing.

Fig 1 Various component of the proposed system

Fig 2 Signal reflected again after hitting obstacles

DETECTION OF STAIRCASE AND PITS

The ultrasonic sensor which is used to detect the pit and likewise to help in climbing up and down staircase .The sensors are positioned within the top of 10cm,15 cm, 20cm and forty cm from the bottom .If the blind individual shifting in path of the stair it offers the audio data to the consumer as” Staircase ahead”. While began shifting towards staircase it informs as “up stair case” whereas the consumer get down from the stair case “down staircase” it offers intimation to the person .

DETECTION OBSTACLES AT DIFFERENT HEIGHTS

The peak of the obstacle could be detected from the shoe with respect to ground .if there is obstacle at a height of 45cm at a distance of 30cm from the sensor ,then the sensor gives the data that from present place to the thing might be intimated the microcontroller that impediment is being detected by the sensor. It informs the user as “There is an obstacle at distance of 30cm with top of 45cm” it provides “bend down “information to the person.

MOTION SENSOR ASSISTANCE IN PEDESTRIAN CROSSING

The movement sensor has been detected by emitting infrared rays relying on the sequential reception of infrared rays within the two sensing parts will be detected by the movement of object. It gives the data to the user to cross the road solely when the green sign is on. By using the motion sensor it helps the visually challenged individuals to guide to cross the roads in the traffic simply .It can detect as a lot as distances of no much less than 15 toes from the ground surface.

Fig 3 place of movement sensor in foot

The movement sensor has a view angle of ninety five °.Here three motion sensors has been positioned at right, left and front side of the foot of the person and it completely covers an angle of 285°.

POSITION IDENTIFICATION THROUGH CLOUD

In this work the smart assistive and acoustic wearable shoe not only assist the visually challenged in navigation but in addition it able to detect the present location. Since blind person they have an opportunity to overlook their pathway so it is final purpose to learn about their present location with coordinates will assist to reach safer location. For this function we implement world positioning system (GPS) is used. The GPS is processed by the microcontroller and provides voice information via the micro headphone to the user. By using GSM it offers information to neighbors of his/her blind consumer which can capable of locate their place simply with none panic.

Fig 4 Global positioning system for user

INTIMATION TO THE VISUALLY CHALLENGED THROUGH BUZZER

It is used to convey the information to the person of presence of obstacles at the completely different distances by alarming at the totally different time intervals for completely different distance. It additionally capable of alert other folks in the occasion that they about to collide by chance with pedestrian walkers

TEXT TO SPEECH CONVERTER

Here the steerage to user is done by utilizing text to speech converter module. By using this module it intimates the user that the obstacles at completely different heights and distance and it convey information to the consumer it headphone socket .this can assist the visually challenged folks to maneuver from one place to another place with none assist of others they’ll journey accordingly to the data obtained.

RESULTS AND DISCUSSION

The prototype of good strolling shoe has been the considered one of most important factor for visually challenged people it will be useful in daily life. Here this technique at current is prepared to help the blind folks to navigate via unknown environment .It creates user pleasant environment for blind individual to maneuver in outdoor surroundings without any panic .The system is extremely compact and strong for the consumer, it could be affordable for everyone. In future enhancement we can have an improvement by adding face detection for this method. Overall by making this technique obtainable at an economic price will assist the visually challenged may have their simpler life than before.