Title :
New sonar configuration for a powered wheelchair
Author :
Ureña, Jesús ; García, J. Jesùs ; Bueno, Emilio ; Mazo, Manuel ; Hernandez, Álvaro ; Carlos, J.C. ; Díaz, Vicente
Author_Institution :
Electron. Dept., Alcala Univ., Madrid, Spain
Abstract :
The paper presents the architecture adopted for an ultrasonic system mounted on a powered wheelchair, from both an electronic and mechanical perspective. It also includes the measurement and basic processing strategy used for the ultrasonic echoes received. The system´s most outstanding characteristics are: low cost, easy installation on any standard wheelchair (taking up little space), total modularity, standard communications via a Lonworks bus, absolute transducer configurability (to emit or receive at any instant), extremely reduced environment scanning time and real time data processing using a DSP card
Keywords :
digital signal processing chips; distributed control; electric vehicles; real-time systems; sonar signal processing; system buses; ultrasonic applications; DSP card; Lonworks bus; absolute transducer configurability; communications; environment scanning time; mechanical perspective; modularity; powered wheelchair; processing strategy; real time data processing; sonar configuration; standard wheelchair; ultrasonic echoes; ultrasonic system; Communication standards; Costs; Electrostatics; Hardware; Rotation measurement; Signal resolution; Sonar; Ultrasonic transducers; Ultrasonic variables measurement; Wheelchairs;
Conference_Titel :
Emerging Technologies and Factory Automation, 1999. Proceedings. ETFA '99. 1999 7th IEEE International Conference on
Conference_Location :
Barcelona
Print_ISBN :
0-7803-5670-5
DOI :
10.1109/ETFA.1999.815345
