Title :
Advancing towards smart endoscopy with specific electronics to enable locomotion and focusing capabilities in a wireless endoscopic capsule robot
Author :
Alonso, O. ; Freixas, L. ; Dieguez, A.
Author_Institution :
Dept. of Electron., Univ. of Barcelona, Barcelona, Spain
Abstract :
The paper reports the electronics used in a new developed wireless endoscopic capsule provided with novel focus and locomotion features. The locomotion is enabled by using legs driven by 2 brushless DC (BLDC) micromotors. The focusing system is enabled by using a liquid lens with a variable focal. These functions are managed by an ASIC that has been developed to provide the specific innovative functions. The size of the ASIC is 3.0 mm × 2.7 mm in a 0.35 um high voltage CMOS technology. The ASIC is described in detail, as well as the performances when it is used with the final devices used in the capsule.
Keywords :
CMOS integrated circuits; application specific integrated circuits; biomedical electronics; brushless DC motors; endoscopes; image sensors; lenses; medical robotics; optical materials; wireless sensor networks; ASIC; CMOS technology; brushless DC micromotors; robotic legs; size 2.7 mm; size 3.0 mm; smart endoscopy; variable focal length liquid lens; wireless endoscopic capsule robot focusing; wireless endoscopic capsule robot locomotion; Application specific integrated circuits; Batteries; Bidirectional control; Endoscopes; Focusing; Gastrointestinal tract; Intelligent robots; Lenses; Lighting; Machine vision;
Conference_Titel :
Biomedical Circuits and Systems Conference, 2009. BioCAS 2009. IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4917-0
Electronic_ISBN :
978-1-4244-4918-7
DOI :
10.1109/BIOCAS.2009.5372047
