#robotics Logs

Oct 31 2014

01:06 MrCurious radiohead - creep
01:06 MrCurious whose perspective is it sung from?
01:06 MrCurious i think it is from hers
01:06 MrCurious https://www.youtube.com/watch?v=iz8TTCqaILs
01:07 MrCurious for anyone interested. i thought it was his for years
09:32 rue_house arg damn
09:32 rue_house I didn't cross off the days fast enough and didn't notice haloween sneaking up on me
09:50 Steffanx halloween is really a thing over there... in this country it's just as day as many others
13:22 robots I have read that the first industrial robots was created in the late 1930's decade it was a craine based machine. I am curious what type of electronic components where available to make them without the 40's advent of transistior / semiconductor based devices what electrical components/electronics where available.
13:23 robots And when did robots in the industries/manufacturing places come to be more main stream
13:24 robots Was it when the computer/ semiconductor technology came to be after the 40's probably closer to late 60 earily 70's on ward. I am assuming robots where developed/evolved at the same time as computers where evolving
13:26 deshipu I think that actually the first industrial robot was the Jacquard loom
13:26 deshipu 1801
13:28 deshipu and the consequences of its introductions were grave to the economy at the time
13:28 robots seems http://pastebin.com/Yfq4jdXb that the grow was from 98 to current but before 98 what was the number of units from 30's to 90's era
13:59 robots ##industrial
14:03 robots Also does anybody know the difference between the first and second industrial revolutions interms of equipment/machinery/technology I am having a hard time understanding the distinction was it mostly from steam powered to fossil fules powered machines or was it more then this
14:50 robots so the primary sector of industries is less important in industrial countries over secondary (goods) and teritary ( services) sectors to me primary food industry is always one of the most important
14:50 theBear noone had transistors until much later than the 40s
14:51 theBear and wtf would you ask this stuff here ? we make robots, we don't do history
14:56 deshipu it's nice to know some of the history of one's hobby
15:10 robots ##cars'
15:24 Steffanx we make history theBear.
15:42 theBear history of robotics is one thing, industrial revolution is kinda different
15:42 deshipu it's all connected
15:43 deshipu hollistic
15:44 deshipu I kinda lost my motivation
15:45 deshipu I have two robots that are practically finished and walk around, but lack any interesting behaviors -- I would need to program them, but meh
15:45 deshipu and I have two more robots that I'm working on, one waiting for parts, and one that is too hard to program
16:10 ace4016 deshipu, really, the interesting bits of robotics are the things that haven't been done yet
16:11 ace4016 also, the problem sets they can solve (without being overengineering)
16:12 deshipu ace4016: I think there is lots of room for fun within the things that have been done already too
16:12 ace4016 mechanical systems with enough impulse to imitate life; control systems that are soft enough and quick enough
16:12 ace4016 and the "intelligence" side which gets really interesting
16:12 deshipu ace4016: also, the one robot that is too hard to program is kinda what I haven't seen done before
16:12 ace4016 improvements, sure
16:12 deshipu that's why it's so hard
16:13 ace4016 too hard to program?
16:13 deshipu it's basically a 2dof-per-leg quadruped that I want to add 2d inverse kinematics to
16:13 deshipu but the equations are horrible
16:13 ace4016 hehe
16:13 deshipu tori on the plane
16:14 deshipu the thing is, you can't have full 3d inverse kinematics for a leg with just 2 degrees of freedom
16:14 deshipu but you can have inverse kinematics in 2d on the floor plane
16:15 deshipu problem is, the euqations depend on the positions of all legs
16:15 deshipu at once
16:15 deshipu wolfram alpha told me "go away"
16:17 ace4016 that's because i believe more complex kinematic systems require a bit more than just pure equations to solve. bit of algos mixed in to get the functionality desired
16:20 deshipu well, this isn't a dynamic system
16:21 deshipu no derivatives or anything
16:21 deshipu simple trigonometry
16:21 ace4016 ah
16:21 ace4016 so you just don't know how to solve the IK chain?
16:24 deshipu the way I think about it, given 4 points on the surfaces of the 4 toruses (1 for each leg), I need to find other 4 points that would have the same distances to each other, but be shifted in a given direction on the plane they are on
16:25 deshipu and still be on those toruses
16:26 deshipu there may be more than one solutions at a given position
16:27 ace4016 hey mumptai, how goes it?
16:54 mumptai slow
20:27 rue_house are there redundant joints in the ik chain?
22:19 rue_house 0 tricker treateres, damn, I suppose I have to eat the 3 boxes of chocolate bars myself
22:23 Tom_itx shame
22:23 Tom_itx you could stretch em out and make smores