microphones bump sensors IR proximity detectors Ultra-sonic range finders
Votrax-based Speech Vacuum cleaner two arms DC motors in base
Control Method
Power Source
Autonomous
Battery
CPU Type
Operating System
Commodor 64 motherboard
N/A
Programming Lanuage
Weight
BASIC
N/A
Time to build
Cost to build
approx. 5-6 years and still going
around $600AUD
URL for more information
N/A
Comments
RALPH (Remote ALl Purpose Helper), comprises of three
movable sections. (a) Mobility Base - housing 2 x 12V 7Ah
batteries, 2 x 12V Geared Window-winder Motors, Bump
sensors. (b) Body - housing a modified Commodore 64
Motherboard, Sensor Interfacing pcbs, Debugging LEDs,
Shoulder motors for both arms. (c) Head - rotates in the
direction of any sound, utilising 2 microphones on
either side of the head.
Ultra-sonic and Infra-red Sensors allow for obstacle
avoidance. Phonetic speech capabilities are possible using
the Votrax Chip, interfaced to the C64 CPU board.
Pulls a Vacuum Cleaner around a pre-programmed path. The arms
are used to hold a serving tray during parties.
Email: terry_scott@gilbarco.com.au
