The Smart Wearable Obstacle Detection and Warning System for the Visually Impaired (original) (raw)

A Smart Wearable Obstacle Detection and Warning System for the Visually Impaired

International Journal for Research in Applied Science and Engineering Technology IJRASET, 2020

A pragmatic approach for aiding the Visually Impaired as a wearable, smart device that is meant to help people with a visual disability and navigate their way while causing minimum hindrance to daily activities. The device uses sensors to detect presence and proximity of objects, obstacles and humans around the wearer. Through appropriate feedback mechanisms, it also gives out indication of any obstacle or step in the path that the person is walking through. This paper aims to make the solution scalable, safe, economical, power-efficient and easy to use. In addition to all this, the well-being of the wearer can be ensured by notifying the nearby healthcare in case of a mishap. The microcontroller board is worn like a device. This will be equipped with ultrasonic sensors, consisting of a GSM module. Using the sensor, a visually impaired person can detect the objects around them and can travel easily. When the sensor detects any object it will notify the user by a voice playback module. Thus this is an automated device. Hence, this device will be of great use for the visually impaired people and help them travel to different places without any hassles.

Smart Walking Stick for Visually Impaired People Using Ultrasonic Sensors and Arduino

—This paper presents the smart walking stick based on ultrasonic sensors and Arduino for visually impaired people. There are approximately 37 million people across the globe who are blind according to the World Health Organization. People with visual disabilities are often dependent on external assistance which can be provided by humans, trained dogs, or special electronic devices as support systems for decision making. Thus, we were motivated to develop a smart white cane to overcome these limitations. We accomplished this goal by adding ultrasonic sensors at specific positions to the cane that provided information about the environment to the user by activating the buzzer sound. We proposed low cost and light weight system designed with microcontroller that processes signal and alerts the visually impaired person over any obstacle, water or dark areas through beeping sounds. The system consists of obstacle and moisture detection sensors for receiving, processing and sending signals to the alarm system which finally alerts the user for prompt action. The system was designed, programmed using C language and tested for accuracy and checked by the visually impaired person. Our device can detect obstacles within the distance of about 2m from the user. Keyword-Ultrasonic sensor, Arduino ATmega328 Microcontroller, Mobility aid, Visually Impaired Person, Alarm system I. INTRODUCTION Visually impaired people are the people who finds it difficult to recognize the smallest detail with healthy eyes. Those who have the visual acuteness of 6/60 or the horizontal range of the visual field with both eyes open have less than or equal to 20 degrees. These people are regarded as blind. A survey by WHO (World Health Organization) carried out in 2011 estimates that in the world, about 1% of the human population is visually impaired (about 70 million people) and amongst them, about 10% are fully blind (about 7 million people) and 90% (about 63 million people) with low vision according to [1]. The main problem with blind people is how to navigate their way to wherever they want to go. Such people need assistance from others with good eyesight. As described by WHO, 10% of the visually impaired have no functional eyesight at all to help them move around without assistance and safely. The figure 1 below is a chart showing the percent of blind people across the globe. This study proposes a new technique for designing a smart stick to help visually impaired people that will provide them navigation. The conventional and archaic navigation aids for persons with visual impairments are the walking cane (also called white cane or stick) and guide dogs which are characterized by a many imperfections. The most critical shortcomings of these aids include: essential skills and training phase, range of motion, and very insignificant information communicated been communicated. Our approach modified this cane with some electronics components and sensors, the electronic aiding devices are designed to solve such issues. The ultrasonic sensors, water sensor, buzzer, and RF transmitter/Receiver are used to record information about the presence of obstacles on the road. Ultrasonic sensor have the capacity to detect any obstacle within the distance range of 2cm-450cm. Therefore whenever there is an obstacle in this range it will alert the user. Water sensor is used to detect if there is water in path of the user. Most blind guidance systems use ultrasound because of its immunity to the environmental noise. With the rapid advances of modern technology both in hardware and software it has become easier to provide intelligent navigation system to the visually impaired.

Wearable Smart System for Visually Impaired People

Sensors (Basel, Switzerland), 2018

In this paper, we present a wearable smart system to help visually impaired persons (VIPs) walk by themselves through the streets, navigate in public places, and seek assistance. The main components of the system are a microcontroller board, various sensors, cellular communication and GPS modules, and a solar panel. The system employs a set of sensors to track the path and alert the user of obstacles in front of them. The user is alerted by a sound emitted through a buzzer and by vibrations on the wrist, which is helpful when the user has hearing loss or is in a noisy environment. In addition, the system alerts people in the surroundings when the user stumbles over or requires assistance, and the alert, along with the system location, is sent as a phone message to registered mobile phones of family members and caregivers. In addition, the registered phones can be used to retrieve the system location whenever required and activate real-time tracking of the VIP. We tested the system p...

Microcontroller Based Obstacle Detection Device Using Voice Signal for the Visually Impaired

IJMER

This paper aims in helping the visually impaired people through an electronic aid, which senses any obstacle in the path and alarms the user of the obstacle. The device uses a simple principle of transmitting an ultrasonic signal in the path generated by a wave generator. The signal gets reflected by the obstacle (if any) in the path. The reflected signal is sensed by a sensor and produces a sound signal in the form of voice. This voice signal directs the visually impaired person to identify the obstacles in front of them.

A Smart Wearable Guiding Device for The Visually Impaired People

International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2022

The "Smart Wearable Guiding Device for the Visually Impaired People" is designed to help blind individuals overcome their lack of vision by using other senses like sound and touch. It alerts the blind user of a major hurdle via audio and vibrating signals. According to the World Health Organization, 39 million individuals globally are considered to be blind. They have a lot of difficulties in their everyday routines. As a result, the project's goal is to provide a low-cost, highefficiency method of assisting the visually handicapped in navigating with a little more ease, quickness, and assurance. This Arduino based gadget will assist the blind in navigating without the use of a stick, which might be inconvenient for them. They may just wear it as a wristband or fabric, and it will work quite precisely with little to no practice. A ringer is also included in the system, which emits a warning sound and generates vibration signals. The system uses sound and vibration signals to warn the user about impending dangers. The frequency of both sound and vibration signals increases as the range between elastic glove and obstacles decreases. The design incorporates a buzzer that emits an audible alarm and a motor that produces vibration signals, as well as the ability to transmit notifications to the appropriate person in the event of a crisis. As a result, the study objective is to provide a low-cost, high-efficiency method of assisting blind people to travel with more ease, pace, and assurance. This design provides a low-cost, robust, portable solution for routes with a self-evidently quick reaction time.

Obstacle and Fall Detection to Guide the Visually Impaired People with Real Time Monitoring

SN Computer Science, 2020

To assist the visually impaired people to travel independently without external aid and monitoring real-time location information of these individuals, a wearable electronic device is presented in this paper. The system is able to detect the obstacles in front of the user, humps on the ground, moving objects. In addition, the system detects the sudden fall and informs the user's guardian. The system is comprised of ultrasonic sensors, a PIR motion sensor, an accelerometer, a smartphone application, a microcontroller, and a data transmission device. The microcontroller transmits the data to the user's smartphone via Bluetooth module. The smartphone application generates audible instructions to navigate the user properly. The application also updates the current location of the user to keep track and notifies the guardians when the user falls down or in distress. The developed system obtained an accuracy of about 98.34% when the obstacle is 50 cm away from the user. The system is proved to be very effective and efficient for users to navigate using precise speech instructions. Overall, the developed system will make the visually impaired people and their guardian's feel much safer and confident.

Arduino Powered Obstacles Avoidance for Visually Impaired Person

The main theme of the paper is that we want to save the blind people life and they have to move their life as normal as the other people live. So, we introduce our concept which is a shoe module. Normally human beings use shoes for their daily life .We introduce a concept of finding the obstacle by using Arduino. In general, blind people wants a support to walk. So, their wear shoes and have a cane. Arduino board is attached to the shoe and in cane. If any obstacle is present in front of the visually impaired person it can be detected by the shoe with the help of Arduino and if any staircase or other natural activities like running of water or any stagnant water is present in front of the blind person ,it can be detected by the cane with the help of ultrasonic and TSOP sensor and also with the rain drop detector. By using this method the blind person can live happily without any distractions and problems.

Arduino based Safety Device for Visually Challenged

In this paper, Our proposed device is an automated one, which helps a visually impaired person detect the obstacles either through beep or vibrations allowing him to walk confidently and smartly even in a crowded area. According to World Health Organization (WHO), it is estimated that approximately 1.3 billion people live with some form of vision impairment where India is said to be the home to world's largest number of blind people. Thus, we have come up with the solution of this innovation using multidisciplinary subjects which is reliable and cost effective. The device uses Arduino Uno microcontroller. It uses ultrasonic sensors to detect the closeness of the obstacle (up to 50 cm) which instantly signals the user with variation of beeps and vibrations with respect to the closeness of the obstacle. Wearing one of these devices is desirable but it would be more efficient if it is worn at five different parts of the body -two for shoulders, two for knees and one in palm.

Smart Guide For Visually Impaired

International Journal of Engineering Science and Futuristic Technology, 2017

The beauty of world lies in its astonishing sceneries. Man understands and enjoys his surroundings mostly using his eyes. But some people are visually impaired and they face many difficulties everyday to move around places especially inside any organisation like hospitals, schools and colleges. For solving this problem to an extent, a new system has been proposed which will guide such people to comfortably travel through places. In this system ultrasonic sensors are used to sense the obstacles in front of the person, within a range of four meters. Moreover, another sensor is placed at the bottom of the stick for the sake of avoiding puddles. Two other sensors attached on the sides of the stick aid in detecting the walking span at the sides. Speech warning messages and the vibration motor are activated when any obstacle is detected. This proposed system uses the microcontroller Arduino embedded system and vibration motor. The stick is capable of detecting all obstacles in the range of four meter during 39 ms and gives a suitable respect message empowering blind to move twice his normal speed because she/he feels safe. The proposed design of smart stick is of fast response, low cost, light weight, low power consumption and ability to fold. The main aim of this project is to contribute our knowledge and services to the people of blind and disable society

Assistance and Navigation Application for visually impaired people using Android

2021

Blind people are liable to get in contact with whatever obstacle which pass before them during walking, subjecting them to risk of injury caused from fall and it could also cause great damage to them. The aim of this project is to develop a smart system with distance measurement system. The system is made up of an ultrasonic sensor as input and earphone as the output. Ultrasonic sensor is used to measure distance from the obstacle. Data is then sent to National Instrument myRIO1900 controller for processing which later produce beeping sound as the output. The process was graphically programmed using LabVIEW with FPGA as the intended target. Performance of the system has been ascertained through several verification tests. In general, the device will alert blind people of the obstacles through the audio output through which they can walk safely without any problem.