The CSA's Rex rover has a robotic arm that simulates collecting Martian rock and soil samples. It travels at 4cm/sec (1.57inch/sec). On its six aluminum or rubber wheels, the rover can navigate over obstacles up to 15cm (5.9 inches) high and climb slopes of up to 10 degrees. Rex weighs 140kg (308.64 pounds) and measures 152 x 142 x 76cm (59.84 x 55.9 x 29.92 inches). It can carry up to 30kg (66.13 pounds) of science payloads. In 2010, the CSA jointly field tested the rover with NASA at the Flagstaff Meteor Crater in Arizona. (Source: Canadian Space Agency)
@ervin0072002: I think this is a difference of terminology. When they say "prototype," think "proof of concept." Actually, even that might be too strong of a term. The CSA doesn't have the means to put one of these on the Moon or Mars, even if they wanted to. These are basically just show and tell pieces that will hopefully benefit Canadian companies.
Actually, this is a pretty good idea, Mr_bandit. Not sure it would be as cost effective as the current rover. But maybe it would, With smaller rovers, there would be less of a chance of malfunction since it would be spread across multiple units.
The problem with the rovers to date is the "all eggs in one basket".
I read about a concept in 1988 where you take a bunch of small "rovers" - think of the RC cars that can bounce all over the terrain or one of the small robots by Big Dog - and a "mother ship". Assume 100 of the small rovers per Mother. Assume 10..50 Mothers. The Mother would land with the small rovers, and act as a home base for re-transmitting signals, swarm coordination, and refueling (electrical power).
The rovers would be redundant - ie 10 would have lasers, 10 with soil analysis, 10 with a mass spec, etc. Mission control would give a target, the Mother would direct the right mix to the spot. Need more laser power? use more laser rovers.
The redundancy gives you a much higher success rate - you can easily lose 10% without degradation of the general mission.
So - I respectfully ask - what is the problem with this? Why not do it, esp on Mars? The Bouncy Ball rover delivery would work. We Have The Technology.
BTW - the "Flagstaff Meteor Crater" is closer to Winslow (20 miles) than Flagstaff (36 miles). Drove past it last week. Also stood on a particular corner in Winslow, AZ, such a fine sight to see.
I am used to a different environment. My prototypes go through assurance testing and have to perform same as the product that goes into certification. there is a large list of things that can go wrong during lift-off as well as space operation.
NadineJ, I agree. Electronic Controls prototypes I've worked on were never designed for production use but for technology Proof of Concept. The cases were made of SLA material and looked like homebrew boxes but the electronics worked quite well under test. These rover designs definitely fit the category of "What If" just by their appearance.
ervin0072002, I noticed the holes and cabling as well. Maybe the intent behind these prototypes is to demonstrate Driveability Proof of Concept regarding rough terrain. Some of the designs look plain but in space functionality is what really matters.