This project describes ultrasonic blind walking stick with the use of arduino. according to who, 30 million peoples are permanently blind and 285 billion peoples with vision impairment . if you notice them , you can very well know about it they can’t walk without the help of other. one has to ask guidance to reach their destination. they have to face more struggles in their life daily life. using this blind stick , a person can walk more confidently. this stick detects the object in front of the person and give response to the user either by vibrating or through command. so, the person can walk without any fear. this device will be best solution to overcome their difficulties
See Full PDF See Full PDFNowadays the blind and impaired people are suffering a lot because there are so many struggles for blind peoples to reach their destination and also there are dangerous risks that blind persons must face. To avoid uncomfortable walking experience, we have designed a smart electronic walking stick for blind people. Our paper proposes a low-cost walking stick based on latest technology and a new implementation are made for efficient interface for blind people. Basically, the ultrasonic sensor is implemented in the walking stick for detecting the obstacles in front of the blind/impaired persons. If there are any obstacles, it will alert the blind person to avoid that obstacles and the alert in the form of voice module daily in different aspects in order to provide flexible and safe movement for the people. Using this blind stick , a person can walk more confidently. The another LDR sensor are used in the stick to identify the day and night for the blind people. The microcontroller (Arduino Uno R3) to receive the sensor signals and process them to short pulses to the Arduino pins where voice module is connected. This device will be best solution to overcome their difficulties and help them to live the better life.
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—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.
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International Journal for Research in Applied Science and Engineering Technology
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New Trends and Issues Proceedings on Humanities and Social Sciences
Nowadays, blind or impaired people are facing a lot of problems in their daily life since it is not easy for them to move, which is very dangerous. There are about 37 million visually impaired people across the globe according to the World Health Organization. People with these problems mostly depend on others, for example, a friend, or their trained dog while movıng outside. Thus, we were motivated to develop a smart stick to solve this problem. The smart stick, integrated with an ultrasonic sensor, buzzer and vibrator, can detect obstacles in the path of the blind people. The buzzer and vibration motor are activated when any obstacle is detected to alert the blind person. This work proposes a low-cost ultrasonic smart blind stick for blind people so that they can move from one place to another in an easy, safe and independent manner. The system was designed and programmed using C language. Keywords: Arduino Uno, Arduino IDE, ultrasonic sensor, buzzer, motor.
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Blind stick is an innovative stick designed for visually disabled people for improved navigation. We here propose an advanced blind stick that allows visually challenged people to navigate with ease using advanced technology. The blind stick is integrated with ultrasonic sensor along with water sensing using moisture sensor. Our proposed project first uses ultrasonic sensors to detect obstacles ahead using ultrasonic waves. On sensing obstacles the sensor passes this data to the microcontroller. The microcontroller then processes this data and calculates if the obstacle is close enough. If the obstacle is not that close the circuit does nothing. If the obstacle is close the microcontroller sends a signal to sound a buzzer. It also detects and sounds a different buzzer if it detects water and alerts the blind. The system has one more advanced feature integrated to help the blind find their stick if they forget where they kept it. A wireless rf based remote is used for this purpose. Pressing the remote button sounds a buzzer on the stick which helps the blind person to find their stick. Thus this system allows for obstacle detection as well as finding stick if misplaced by visually disabled people. [1]
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The man kind has been suffering with many diseases and abnormalities. Blindness is one of the disabilities which is very common and difficult to treat. The main motive of this paper is to help the blind people with a good and easy to use blind walking stick that uses a microcontroller to detect obstacles in front of him with many additional features which are quite cost effective. The stick will be meant for the rehabilitation of the blind people. The product is based on the distance measurement property of the ultrasonic sensors. It will measure the distance and velocity of the obstacle in the way of the person and will alarm the person about any obstacle (moving/stationary). The stick will allow detection of obstacles on the ground, holes and pits, uneven surfaces, steps, and other typical obstacles in the path of the person. Since the device is incorporated with wireless module it will be very handy and will be much easier to use as compared to the similar products available in the market. The white cane or stick is mostly preferred by the blind people for walking. But the limitation to the white cane is that the information obtained by the blind user is only by touching the objects by the tip of the cane, which is not completely reliable. Through this proposed paper we offer to give a solution which overcomes the limitations of the ordinary white cane. The ultrasonic blind walking stick is fully automated, comfortable to use and cheap. In other words, it is quite economic over the conventional method.
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In this project we present an obstacle detection system for the visually impaired persons to Improve their mobility in daily life with the help of obstacle detection sensor installed in theirs waking stick. Blind peoples have trouble seeing things which other people take for granted, like Road signs, traffic lights, and so forth. They are more prone to falls and other accidents because they cannot clearly see their surrounding environment. The visually challenged people or the Blind people are always trying their best to be normal and comfortable in surroundings. However heir Life activities are greatly restricted by loss of eyesight. . They can find the way easily if they are familiar with an environment Or route. The most important mobility aid used by them is a walking stick or also known as Walking cane. The conventional walking stick employed by the visually challenged people is Actually not efficient to detect the object in front of the user. They can only detect the object that Is being hit by the walking stick. A walking stick for the visually challenged people using ultrasonic distance sensor will become a great help to them because this kind of walking stick is Able to detect the object in the specific range. In this project the distance range used is 2cm to 400cm. When an object is detected, vibration from a vibrator will alert the user about the object And the person can avoid the object safely without hitting the object. As the distance of the object And the user is closer; the sound alarm will be produced in addition to the vibration. The user will be able to avoid obstacles better using the newly designed walking stick. The project have an additional feature of finding the walking stick when they put somewhere that they can’t remember.
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