Design and fabrication of a portable obstruction detection device for visually impaired persons

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dc.contributor.authorNnadiekwe, C. A.
dc.contributor.authorIwuji, S. C.
dc.contributor.authorAzeez, T. O.
dc.contributor.authorNosiri, O.
dc.contributor.authorBanigo, A.
dc.date.accessioned2024-11-27T14:28:20Z
dc.date.available2024-11-27T14:28:20Z
dc.date.issued2020
dc.descriptionThe article contains figures and tables
dc.description.abstractThe cow-horned cased Obstruction Detection Device (ODD), powered by 9V battery, is designed for visually impaired persons. It is constructed using two HC-SR04 ultrasound sensors for front obstacle and depression detections. The device detects an obstacle by emitting ultrasonic sound that hits the interface and interprets the echo. The emission of this sound is triggered by the PIC16F877A microcontroller programmed to send out feedback to the user’s earphone in form of a musical note peculiar to the range of distance of the obstacle. The device is integrated with Radio Frequency (RF) Module that locates the device when misplaced. This Module has LM555 timer that regulates the signal emitted by the misplaced device. The device is incorporated with a Light Dependent Resistor (LDR) that detects any change in illumination. This project designed and fabricated a cheap locally cased ODD with comparative advantages of informing the visually impaired of the range of distance and position of the obstacle and the location of a misplaced device.
dc.identifier.citationNnadiekwe, C. A., Iwuji, S. C., Azeez T. O., Nosiri, O. & Banigo, A.(2020). Design and fabrication of a portable obstruction detection device for visually impaired persons. African Journal of Medical Physics, Biomedical Engineering and Sciences,, 7, 15 - 24
dc.identifier.urihttps://repository.futo.edu.ng/handle/20.500.14562/1557
dc.language.isoen
dc.publisherABC Publications Incorporated
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectVisually impaired
dc.subjectHC-SR04 ultrasound sensor
dc.subjectobstruction detection
dc.subjectDepartment of Biomedical Technology
dc.titleDesign and fabrication of a portable obstruction detection device for visually impaired persons
dc.typeArticle

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