International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
Implementation of Obstacle Detection and Navigation system for Visually Impaired using Smart Shoes Tejal Chandekar1, Ranavikrant Chouhan2, Rajanigandha Gaikwad 3 , Hrushikesh Gosavi 4, Prof.S.A. Darade 5 Student, Dept. of Computer Engineering, SITS, Maharashtra, India Professor, Dept. of Computer Engineering, SITS, Maharashtra, India
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---------------------------------------------------------------------***--------------------------------------------------------------------Android are to be combined to design a new device for Abstract – The Highly over sighted field of application for the visually challenged people has put it in a despair. Current solutions prove to be insufficient or end up being highly expensive. Today’s technological advancements must benefit, above all, the most disabled. In this paper we have surveyed the existing solutions meant for autonomous mobility for the visually impaired people as well as proposed a novel design, Smart Shoes with embedded sensors to guide a visually impaired person while navigating and to alert him or her of the obstacles that lay ahead in his path. The design is aimed to develop an easy to use Android application to cater to the special needs, used to guide the person coextending the features of the Smart Shoes.
Key Words: Embedded system, Arduino , Android Visually impaired, sensors.
1. INTRODUCTION Embedded systems are the systems with a major mechanical or electrical dedicated function often integrated with real-time computing systems. They have a control access to all the real-time operating systems in our day-today life. Android is an operating system developed by Google for mobile systems. It is based on the Linux kernel and designed for touch-screen mobile devices such as smartphones and tablets. Andriod phone’s UI is direct manipulation based and by using touch gestures with features such as swiping, tapping and pinching for changing the on-screen objects with a feature of virtual keyboard for inputs. Our primary objective here is to make the best use of the sensors which are available at hand for real time obstacle detection and navigation. The sensors to be used need to of minimum size and cost providing maximum functionality in order to help a visually impaired person navigate and move around autonomously. The usage of Android is restricted to its features which are not visual but will still help a visually impaired person. The user needs to be able to launch his application without having to view anything on the device with the sole help of the hardcoded keys on the Android device. All the features of the sensors, Arduino microcontroller and © 2017, IRJET
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autonomous mobility of a visually impaired person.
2. RELATED WORK A complete and reliable sensing system for obstacle detection can value a lot from the collective usage of numerous types of sensors, especially from the active passive combination. Any precise type of technology may have hitches to meet all necessary necessities in order to detect an obstacle in various lighting or weather conditions. The muddle background and intricate moving patterns of all objects which may appear on a road scene in urban streets demand erudite processing of sensor inputs. In order to overcome this problem, a sensor - fusion and segmentation approach can be used. From the technology's point view, different sensing technologies such as ultrasonic sensor, laser scanner, microwaves and computer vision can be used for obstacle detection task. The main problem is to design algorithms that are robust enough to reliably detect and warn for any obstacles that can appear in front of the user on the road area. In [1]A.Discant et al. speaks about the different types of sensors such as active and passive sensors. It also throws light on various sensing systems designed using the combinations of these sensors. [2] This paper presented the use of ultrasonic and infrared sensors for distance dimension in the enlargement of an obstacle detection system for senior and people with vision impairment. Investigational results show that ultrasonic and infrared sensors have diverse characteristics in terms of output voltage measurements. It is clearly designated that ultrasonic sensor gives a linear output representative whereas infrared sensor shows a nonlinear output representative. Both sensors are able to detect an obstacle at the distances within their usable range with percentage of precision between 95% and 99%. The experimental result indicates that the US and IR sensors are able to provide reliable distance measurements even with different colours and materials of obstacles. Another thing that has been shown is that IR sensor has slightly advanced resolution than that of the US sensor, particularly for slight distance measurement within their usable ranges. The system is designed to determine the sensor location only when the user is touching his foot completely on the ground with the sensors pointing forward. ISO 9001:2008 Certified Journal
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