https://repositorio.pucsp.br/jspui/handle/handle/11474 Sat, 04 Apr 2026 05:56:00 GMT 2026-04-04T05:56:00Z https://repositorio.pucsp.br/jspui/handle/handle/11477 Título: Sistema RFID complementar de piso tátil para localização de deficientes visuais em ambientes fechados Abstract: For the visually impaired, identify which path to follow to reach the desired destination without assistance from healthy people is a challenge. To move in an unknown environment is required to interact with the mechanisms of information. However the visually impaired do not yet have a navigation system in indoor environments with real-time response that allows this this communication. This paper presents a device that allows interaction with the tactile floor to aid navigation and orientation. Through an audio interface, the device provides the visually impaired relevant information on the space around it and the navigation options available. The relevant information is disseminated using labels with radio frequency identification technology, integrated into a microcontroller and an audio playback card. Each label has an electronic product code that allows to identify it uniquely. The label installed in a standard place of tactile floor is linked to an audio file with information about the space and the available routes. The reader integrated development board reads the labels and sends the electronic code to the microcontroller, which in turn identifies the code and assigns this audio file to be played. The device was tested by a volunteer who found all labels positioned on the floor tactile alert, clearly identified its position and reached the desired destination without route errors. Used as a complement to tactile signage, this device provides an interaction between the visually impaired and the existing tactile signage. This project will directly contribute to society, providing a convenient navigation system for people with visual disabilities have greater autonomy Tipo: Dissertação Mon, 02 Mar 2015 00:00:00 GMT https://repositorio.pucsp.br/jspui/handle/handle/11477 2015-03-02T00:00:00Z https://repositorio.pucsp.br/jspui/handle/handle/11476 Título: Plataforma destinada aos deficientes visuais para geração e digitalização de imagens Abstract: Currently multiple devices provide means of conveying information to the visually impaired through audio. However, if the interpretation of texts this resolved, there are few systems for interpretation and generation of graphics or symbols really functional. This paper presents a platform developed to generate and scan images on the computer and can be used by people with visual impairments. The device comprises hardware, a printed circuit board having an electrode array. Each electrode corresponds to a pixel, in analogy to the points on a display. In addition to the hardware, two programs were developed first, installed on computer analyzes and generates the image, the other is recorded in microcontroller and controls the electrode plate for pixel scan the pixel. When an object is positioned conductive based on the platform, the system checks which electrodes are with the closed contact and records these design points. This information is processed by dedicated software installed on your computer, which analyzes the information received, generates the design and the play on the computer screen. The device has been tested with applications of geometric shapes used in math classes and geometric shapes to build a flowchart. The device is a proposal for assistive technology tool that can help generate images of objects, flowcharts and diagrams in a simple and accessible way to people with low vision, facilitating the understanding and generate a wealth of detail in the information presented Tipo: Dissertação Mon, 02 Mar 2015 00:00:00 GMT https://repositorio.pucsp.br/jspui/handle/handle/11476 2015-03-02T00:00:00Z https://repositorio.pucsp.br/jspui/handle/handle/11478 Título: Proposta para certificação compulsória de cadeira de rodas com base nas normas técnicas específicas e nas percepções de usuários cadeirantes Abstract: The conformity trend evaluation results of manual wheelchairs simple model, made by Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO) according to the perception of wheelchair users through this work, showed the need to develop an appropriate regulatory wheelchairs system, setting up safety requirements to ensure the integrity of user during use, considering that the wheelchair is used as a means of locomotion for disabled Tipo: Dissertação Mon, 24 Aug 2015 00:00:00 GMT https://repositorio.pucsp.br/jspui/handle/handle/11478 2015-08-24T00:00:00Z https://repositorio.pucsp.br/jspui/handle/handle/11475 Título: Localização de deficientes visuais em ambientes fechados e reconhecimento de produtos Abstract: One of the problems faced by the visually impaired is the location of objects in an unfamiliar environment. Find a product in a store without assistance is almost impossible for a person with low vision. Therefore, in this research we developed a system to provide the location of products in the supermarket aisles and then allow reading the bar code or NFC tag on the product or on the shelf .To select from the options location or identification, the screen cell was divided into two parts such that the blind or visually impaired persons may choose between them. Hence, in this study used a smartphone with Android operating system. The system was developed using the MIT App Inventor 2. This interface is a web application with open source developed by Google and maintained by the Massachusetts Institute of Technology (MIT). The interface is divided into two parts, one devoted to the design and implementation for another logic. The program is based on the Scheme language, Google voice ID and bar code reader. The device was tested indoors simulating aisles and shelves of a supermarket measuring the time required to find and identify five products. The adoption by store and supermarket system developed for this research, facilitating the location and identification of products, should contribute to the independence and quality of life for people with visual limitations Tipo: Dissertação Mon, 02 Mar 2015 00:00:00 GMT https://repositorio.pucsp.br/jspui/handle/handle/11475 2015-03-02T00:00:00Z