Warning: Table './science/sessions' is marked as crashed and should be repaired query: SELECT u.*, s.* FROM users u INNER JOIN sessions s ON u.uid = s.uid WHERE s.sid = 'heil10t45l382pqbog4k8v6g64' in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135 Warning: Table './science/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:173:\"Table './science/sessions' is marked as crashed and should be repaired\nquery: SELECT COUNT(sid) AS count FROM sessions WHERE timestamp >= 1781586274 AND uid = 0\";s:5:\"%file\";s:63:\"/var/www/html/science/science.uni-obuda.hu/includes/session.inc\";s:5:\"%line\";i:120;}', 3, '', 'http://science.uni-obuda.hu/en/node/1710', '', '216.73.216.60', 1781587174) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135 Warning: Table './science/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:184:\"Table './science/sessions' is marked as crashed and should be repaired\nquery: SELECT COUNT(DISTINCT s.uid) FROM sessions s WHERE s.timestamp >= 1781586274 AND s.uid > 0\";s:5:\"%file\";s:67:\"/var/www/html/science/science.uni-obuda.hu/modules/user/user.module\";s:5:\"%line\";i:776;}', 3, '', 'http://science.uni-obuda.hu/en/node/1710', '', '216.73.216.60', 1781587174) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135 Warning: Table './science/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:138:\"realpath(): open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/var/www/html/science/science.uni-obuda.hu)\";s:5:\"%file\";s:60:\"/var/www/html/science/science.uni-obuda.hu/includes/file.inc\";s:5:\"%line\";i:200;}', 3, '', 'http://science.uni-obuda.hu/en/node/1710', '', '216.73.216.60', 1781587174) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135 Warning: Table './science/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:138:\"realpath(): open_basedir restriction in effect. File(/tmp) is not within the allowed path(s): (/var/www/html/science/science.uni-obuda.hu)\";s:5:\"%file\";s:60:\"/var/www/html/science/science.uni-obuda.hu/includes/file.inc\";s:5:\"%line\";i:200;}', 3, '', 'http://science.uni-obuda.hu/en/node/1710', '', '216.73.216.60', 1781587174) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135 Ultrasonic Based Device for Blind and Visually Impaired People | science.uni-obuda.hu
Skip to main content

Ultrasonic Based Device for Blind and Visually Impaired People

TitleUltrasonic Based Device for Blind and Visually Impaired People
Publication TypeConference Proceedings
Year of Publication2004
AuthorsVámossy, Z., B. Fekete, L. Nyitrai, and A. Molnár
Conference Name13th International Workshop on Robotics in Alpe-Adria-Danube Region (RAAD)
Pagination405-407
Conference LocationBrno, Slovakia
ISBN Number80-7204-341-2
Keywordsblindness, distance measurement, ultrasonic device
Abstract

What can the life be without seeing? It can be very difficult to travel unknown places using only voice inputs, the white cane and sometimes the guide dog. The aim of this project was to develop a new device to help visually impaired people. The device contains an ultrasonic sounder and receiver. It measures the distance of the obstacles in front of the user. After the process phase it converts to similar vibration motion as in the case of mobile phones and optionally to audible sound. In fact it converts the visual information to vibration or/and sound information, that can help to navigate its user.
Warning: Table './science/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:263:\"Table './science/sessions' is marked as crashed and should be repaired\nquery: UPDATE sessions SET uid = 0, cache = 0, hostname = '216.73.216.60', session = '', timestamp = 1781587174 WHERE sid = 'heil10t45l382pqbog4k8v6g64'\";s:5:\"%file\";s:63:\"/var/www/html/science/science.uni-obuda.hu/includes/session.inc\";s:5:\"%line\";i:69;}', 3, '', 'http://science.uni-obuda.hu/en/node/1710', '', '216.73.216.60', 1781587174) in /var/www/html/science/science.uni-obuda.hu/includes/database.mysql.inc on line 135