TY - CONF N1 - cited By 5; Conference of International Symposium on Information Technology 2008, ITSim ; Conference Date: 26 August 2008 Through 29 August 2008; Conference Code:74115 KW - Navigation aids; Obstacles avoidances; On times; Reflected beams; Ultrasonic beams KW - Information technology; Navigation; Sensors; Sonar; Ultrasonic sensors; Ultrasonics; Vision aids KW - Underwater audition A1 - Aziz, I.A. A1 - Mahamad, S. A1 - Mehat, M. A1 - Haron, N.S. Y1 - 2008/// SN - 9781424423286 TI - Blind echolocation using ultrasonic sensors ID - scholars327 AV - none UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-57349119935&doi=10.1109%2fITSIM.2008.4631900&partnerID=40&md5=f8b91b8377fd7223fede88db3cc35847 CY - Kuala Lumpur VL - 3 N2 - This paper proposes a navigation aid for the blind using echolocation principle and ultrasonic sensors. The device is for obstacles avoidance by detecting near objects in front of the user and shall trigger an audible alarm. Based on the echolocation principle, the ultrasonic beam is emitted in a certain direction in space through a transmitter. The beam is reflected from objects it encounters on its way; a matching receiver detects the reflected beam and the distance to the object is calculated based on time difference between emitting and receiving beam. Experimental results are presented. It could plausibly deduce that the device produced is suitable to be use as a navigation aid for the visually impaired. © 2008 IEEE. ER -