It is very easy for some CNC machines to tell if it has a dull or broken drill bit, or tap. I don't think it would take that much to add that capability to many of today's robots.
We had servo controlled torque wrenches with process monitors on a robotic production line where I worked that could also tell you way more about how that bolt (torque and turn) tightened than most observant skilled wrench operators (yes there is a skill to feeling a bolt tighten) and almost anyone that does it for 8 hours straight. Every bolt, every time, perfectly tightened, or rejected!
The logic to determine the failure (bolt, threads, nut, washer, or part interference) was there, and normally spot on, I doubt the programming to rework the various parts would add much to the complexity of today's state of the art assembly (line worker replacement) robots.
Cheers! to our manual labor (job) eliminating robot overloards!
I find it amazing how aware you are of, and the understanding you have of, exactly what you are "missing" intellectually from before.
Do you think there is some kind of switch that can be flipped in order to re-enable these previous capabilities?
Are those abilities still up there just locked away, inaccessible to you for some unknown reason, but if you spent (the proper amount of) time re-learning some of it you could again be proficient in them, or do you have a firm belief they are gone forever?
Do you think you could ever understand more about them than you did previously?
Be sure to wipe them, and install Ubuntu or your favorite distro, so when they pick it up, take it home and fire it up, it just works. I've had people stop back and ask what it was I left on the computer I threw out, and could I install it in their dying XP box.
I have no proof besides what I've read on the subject (but that is everything I could find on it, at least twice, I find Stuxnet very interesting) but my guess is that it's easier than a PC (even without antivirus) just ripe for the picking! Something like Stuxnet was probably not even considered in the design of the PLC firmware, and there's nothing available similar to AV software you have to worry about avoiding.
The OS is not worried about other programs accessing shared memory and resources, it does it all, so no need to waste too many clock cycles protecting something that nothing else can normally access. I doubt there's anything in there to verify a number sent to the HMI is the same number sent out on Profibus. It just should be, so it's treated like it is.
There was a guy I worked with that gave his notice and then took his laptop home to copy off some 'personal' files, and the next day right after he got home from work HR, IT, and the police were there to take all of his computers, and removable media, and CDs, DVDs etc into evidence to be scanned for company material. They knew what files he had copied, and to what drives they were copied on, but they took everything anyways to be sure he hadn't made other copies or had anything from before. Then they took his prox card, and told him not to come in for the rest of his 2 weeks notice.
Another place would also automatically revoke any access; physical, networked, even departmental intranet or mainframe access you hadn't really used (can't just load the screen either, a valid query must be performed, or start a new expense report and cancel it) in the past 90 days, requiring reauthorization by your department head to regain access again. You could be locked out of YOUR OWN network drive if you didn't access a file there in 90 days!
With most new ECMs you simply alter the pattern coming from the crank position sensor real time into a slightly different pattern that gives you the spark you want. It also allows you to raise the rev-limiter as well. The ECM calculates the RPM tooth to tooth, so if it thinks the engine is @ 7000 RPM when its not scheduling spark, and after fuel injection has started (sequences are start angle + time and will not be cut short) you will be fine! There's only certain spots a in a rev where it has to 'think' its going the right speed so you have quite a window to trick it into thinking its in a different position in order to get the end result you desire.
An AVR @ 16 Mhz can easily simulate a 60 tooth pattern at 12000 RPM, That's only a 12Khz output freq, that's nothing, and you still have enough clock cycles to modify the MAP sensor too. The best part is the stock ECM (and dealer) is none the wiser:)
We just had a lot of rain, and flooded basements, and I replaced 4 power supplies on some unlucky computers. 2 old Vista Dells I had installed 8.04 on with Virtual Box TinyXP installs, a Compaq Vista I installed 7.10 on, and a Dell XP Unspirion with 8.10 on it.
Everyone loved them, had no troubles (except one virus laden TinyXP install that needed a 5 second rollback to snapshot (wow Linux fixes Windows too!)) zero complaints, loved the Linux, how come you didn't tell me about this before?
Is there a new version?
Waannh Waaaahh... Doooooh! (puts on sales hat)
Yeah, check out the new desktop, if you like it (holds down super key to show them easy window tools and then zips a few windows around) ill set you up dual boot.
Can you do it now quick, then I won't have to bother you for another 4 years?
Sure, and if you want I'll make a backup of all the shit you nearly lost on your computer
Oh my god, thanks!
(installs gnome classic to be safe)
3... Profit!!!
So far 3 love it (will try anything Linux its awesome) still getting used to it, but it seems easy enoughs.
One hasn't tried it (too busy with flooded basement) but wants to switch just from seeing it the one time.
I sometimes forget how many happy Ubuntuers I've created, I rarely hear from them!
We will see how the Unity Experiment turns out!
(None of them want a new Windows 7 computer, and they all use one at work)
Would probably work on KS too, just buy in at the $20 level, and comment that you are willing to step up to level X based on how you think they are doing.
As with nearly anything if you like it, you tend to buy or spend more doing it. It's hardly something they could disagree with! Your offering to give more $ later
I would think/hope most projects would let you jump from $100 to the $500 level while the project is progressing, instead of having to buy each level again individually (perhaps a 20% wus tax on the difference)
An upgraded pledge based on increased interest in the project, and its deliverables. I bet some things will turn out better than people thought, and they may want all the different color options after all.
"Embedded Systems Firmware Demystified" by Ed Sutter (the one with the computerized toaster on the cover) is a pretty good book to start out reading, and of course doing the examples:) The book is from 2002, but there is still a lot of good stuff in there. IIRC it was copyright Lucent Technologies, and comes with the GNU compiler and many examples from Linux.
An oscilloscope or logic analyzer, and a few months working through the examples in the book with some real hardware will really help!
The paper is also uninteresting enough to keep you focused on the lecture. The new gadget, probably not so much! Being a new gadget, it will naturally draw your focus.
You also want to use something you've had a while so you don't have to think about how to operate it. You'll miss even more important information while changing apps and entry modes etc looking for what you need.
Buy a nice binder to keep everything in forever. Fill it with lined paper and graph paper, and restock your pocket protector with a new ball-point black, blue and red pen (good ol' bics, not fancy smeary gel pens) a clicky pencil and extra lead with a big eraser, and a couple hi-lighters. If making lots of diagrams, a circle template or appropriate symbol template with a ruled edge will help a lot.
Transpose it into your gadget of choice in your hotel room that night. Seeing it twice will help you remember it better and might bring up questions you can ask about the next morning while you're still there with the instructors. The gadget will also help keep you from going out on the town at night and that will keep you from seeing double and your mind from going to shit.
I like the Salaried Non-Exempt gig the best. 40 no matter what, and more if they need you more. It's worth asking for! It results in less overtime than a salaried position (how it compares with hourly I have no guess) with the benefit of a higher pay when you actually have more work than your management agrees you can complete in a normal 40 hour work week.
I still have one, its awesome, only player I could find at the time that you could actually delete songs right on the player. It really is a needed feature IMHO.
I can see were there could be a problem with daylight saving time, and the clock essentially jumped backwards, but could you give examples of problems you've in experienced with the leap day that would be solved by having the internal clock set to a different time? it would seem in order to keep an accurate date the internal clock would also have to have the date set to the 29th of February, so what is gained by not adding the of the time zone in that case?
What day would your universally timed internal clock think it was on february 29th?
When I was flying a few years ago, there were beginners models with a one year warranty that covered any damage, even from crashing. A reassuring thought the first time it smashes into 20 pieces!
Also a gyro on the tail rotor can be very helpful when you start out!
Stand behind it for the first few hours to get the hang of it, as all of the controls get reversed from your perspective when you turn it around. It's much easier to land it and regroup than trying to fly it once it gets turned because you will be constantly correcting it the wrong direction. Sideways is also tricky as well, the sticks seem to start doing the wrong thing!
Most people will even steer an R/C car the wrong way the first few times they drive it at themselves.
A year and a half with 4 people eating Hormel Chili in a sealed metal tube is not the way to get to Mars alive! Unless the whole spaceship runs on methane:) Then it might get you there very quickly! Just have a hose attachment in the seat running out the back with a vapor seperator on it.
Any numbers on the specific impulse of Hormel Chili?
Thanks for adding that. I missed that in my reply. It was the topic of the parent post, but I started dozing off, so I called it quits, and hit submit. 3:30 Bedtime:)
I asked the question after failing validation with an AVR when they first came out. I wrote a little assembly MemTest loop, and let them run, I knew there were no bugs in that loop, yet it still failed occasionally on multiple p# devices.
I cringe when I look at the the code that is running so many things. The failures mode present in so many of the standard libraries used everywhere in the embedded world.
I've read the Google paper, and it's very interesting BTW.
Slashdot Mirror
Taking the mothership to chocolate city!
I got to party on the George Clinton tour bus twice after his shows, and it was quite the outta_this_world experience!
It is very easy for some CNC machines to tell if it has a dull or broken drill bit, or tap. I don't think it would take that much to add that capability to many of today's robots.
We had servo controlled torque wrenches with process monitors on a robotic production line where I worked that could also tell you way more about how that bolt (torque and turn) tightened than most observant skilled wrench operators (yes there is a skill to feeling a bolt tighten) and almost anyone that does it for 8 hours straight. Every bolt, every time, perfectly tightened, or rejected!
The logic to determine the failure (bolt, threads, nut, washer, or part interference) was there, and normally spot on, I doubt the programming to rework the various parts would add much to the complexity of today's state of the art assembly (line worker replacement) robots.
Cheers! to our manual labor (job) eliminating robot overloards!
Wasn't this from about a year and a half ago, or did it happen again?
It should show up in related stories, but that'd be asking too much.
I used one of my 30+ shell accounts to mod you up because I already commented on this story.
I kid.. I kid...
I find it amazing how aware you are of, and the understanding you have of, exactly what you are "missing" intellectually from before.
Do you think there is some kind of switch that can be flipped in order to re-enable these previous capabilities?
Are those abilities still up there just locked away, inaccessible to you for some unknown reason, but if you spent (the proper amount of) time re-learning some of it you could again be proficient in them, or do you have a firm belief they are gone forever?
Do you think you could ever understand more about them than you did previously?
Thank you.
And they planned that (a couple years ago) so it would be there to take that picture so they can show us just how fscking awesome they really are.
You guys kick ass!
Be sure to wipe them, and install Ubuntu or your favorite distro, so when they pick it up, take it home and fire it up, it just works. I've had people stop back and ask what it was I left on the computer I threw out, and could I install it in their dying XP box.
Spread the love!
Cheers!
your bags?
or concealed weapons?
hmmm...
I have no proof besides what I've read on the subject (but that is everything I could find on it, at least twice, I find Stuxnet very interesting) but my guess is that it's easier than a PC (even without antivirus) just ripe for the picking! Something like Stuxnet was probably not even considered in the design of the PLC firmware, and there's nothing available similar to AV software you have to worry about avoiding.
The OS is not worried about other programs accessing shared memory and resources, it does it all, so no need to waste too many clock cycles protecting something that nothing else can normally access. I doubt there's anything in there to verify a number sent to the HMI is the same number sent out on Profibus. It just should be, so it's treated like it is.
Just my $0.01
Cheers.
That feature is going in Version 3.0 which is based on V1.89b and the V2.X branch is being discarded.
It had to have a bunch more SWedges installed to support all the additional functionality correctly without spazzing out.
There was a guy I worked with that gave his notice and then took his laptop home to copy off some 'personal' files, and the next day right after he got home from work HR, IT, and the police were there to take all of his computers, and removable media, and CDs, DVDs etc into evidence to be scanned for company material. They knew what files he had copied, and to what drives they were copied on, but they took everything anyways to be sure he hadn't made other copies or had anything from before. Then they took his prox card, and told him not to come in for the rest of his 2 weeks notice.
Another place would also automatically revoke any access; physical, networked, even departmental intranet or mainframe access you hadn't really used (can't just load the screen either, a valid query must be performed, or start a new expense report and cancel it) in the past 90 days, requiring reauthorization by your department head to regain access again. You could be locked out of YOUR OWN network drive if you didn't access a file there in 90 days!
Some places do take IP seriously!
With most new ECMs you simply alter the pattern coming from the crank position sensor real time into a slightly different pattern that gives you the spark you want. It also allows you to raise the rev-limiter as well. The ECM calculates the RPM tooth to tooth, so if it thinks the engine is @ 7000 RPM when its not scheduling spark, and after fuel injection has started (sequences are start angle + time and will not be cut short) you will be fine! There's only certain spots a in a rev where it has to 'think' its going the right speed so you have quite a window to trick it into thinking its in a different position in order to get the end result you desire.
An AVR @ 16 Mhz can easily simulate a 60 tooth pattern at 12000 RPM, That's only a 12Khz output freq, that's nothing, and you still have enough clock cycles to modify the MAP sensor too. The best part is the stock ECM (and dealer) is none the wiser:)
I called my source code The_ECManipulator
Cheers
Anyone ever used one on the EmperorLinux computers?
They seem to know their shiznit!
We just had a lot of rain, and flooded basements, and I replaced 4 power supplies on some unlucky computers. 2 old Vista Dells I had installed 8.04 on with Virtual Box TinyXP installs, a Compaq Vista I installed 7.10 on, and a Dell XP Unspirion with 8.10 on it.
Everyone loved them, had no troubles (except one virus laden TinyXP install that needed a 5 second rollback to snapshot (wow Linux fixes Windows too!)) zero complaints, loved the Linux, how come you didn't tell me about this before?
Is there a new version?
Waannh Waaaahh... Doooooh!
(puts on sales hat)
Yeah, check out the new desktop, if you like it (holds down super key to show them easy window tools and then zips a few windows around) ill set you up dual boot.
Can you do it now quick, then I won't have to bother you for another 4 years?
Sure, and if you want I'll make a backup of all the shit you nearly lost on your computer
Oh my god, thanks!
(installs gnome classic to be safe)
3... Profit!!!
So far 3 love it (will try anything Linux its awesome) still getting used to it, but it seems easy enoughs.
One hasn't tried it (too busy with flooded basement) but wants to switch just from seeing it the one time.
I sometimes forget how many happy Ubuntuers I've created, I rarely hear from them!
We will see how the Unity Experiment turns out!
(None of them want a new Windows 7 computer, and they all use one at work)
Cheers
Would probably work on KS too, just buy in at the $20 level, and comment that you are willing to step up to level X based on how you think they are doing.
As with nearly anything if you like it, you tend to buy or spend more doing it. It's hardly something they could disagree with! Your offering to give more $ later
I would think/hope most projects would let you jump from $100 to the $500 level while the project is progressing, instead of having to buy each level again individually (perhaps a 20% wus tax on the difference)
An upgraded pledge based on increased interest in the project, and its deliverables. I bet some things will turn out better than people thought, and they may want all the different color options after all.
I think it would really help in many ways.
Many Thanks for that!
Cheers!
You mean your recolwikipedialection? Or did you recolgooglelection it to find a real source:)?
Cheers
"Embedded Systems Firmware Demystified" by Ed Sutter (the one with the computerized toaster on the cover) is a pretty good book to start out reading, and of course doing the examples:) The book is from 2002, but there is still a lot of good stuff in there. IIRC it was copyright Lucent Technologies, and comes with the GNU compiler and many examples from Linux.
An oscilloscope or logic analyzer, and a few months working through the examples in the book with some real hardware will really help!
Cheers!
The paper is also uninteresting enough to keep you focused on the lecture. The new gadget, probably not so much! Being a new gadget, it will naturally draw your focus.
You also want to use something you've had a while so you don't have to think about how to operate it. You'll miss even more important information while changing apps and entry modes etc looking for what you need.
Buy a nice binder to keep everything in forever. Fill it with lined paper and graph paper, and restock your pocket protector with a new ball-point black, blue and red pen (good ol' bics, not fancy smeary gel pens) a clicky pencil and extra lead with a big eraser, and a couple hi-lighters. If making lots of diagrams, a circle template or appropriate symbol template with a ruled edge will help a lot.
Transpose it into your gadget of choice in your hotel room that night. Seeing it twice will help you remember it better and might bring up questions you can ask about the next morning while you're still there with the instructors. The gadget will also help keep you from going out on the town at night and that will keep you from seeing double and your mind from going to shit.
Cheers!
I like the Salaried Non-Exempt gig the best. 40 no matter what, and more if they need you more. It's worth asking for! It results in less overtime than a salaried position (how it compares with hourly I have no guess) with the benefit of a higher pay when you actually have more work than your management agrees you can complete in a normal 40 hour work week.
Cheers
I still have one, its awesome, only player I could find at the time that you could actually delete songs right on the player. It really is a needed feature IMHO.
I can see were there could be a problem with daylight saving time, and the clock essentially jumped backwards, but could you give examples of problems you've in experienced with the leap day that would be solved by having the internal clock set to a different time? it would seem in order to keep an accurate date the internal clock would also have to have the date set to the 29th of February, so what is gained by not adding the of the time zone in that case?
What day would your universally timed internal clock think it was on february 29th?
Cheers!
When I was flying a few years ago, there were beginners models with a one year warranty that covered any damage, even from crashing. A reassuring thought the first time it smashes into 20 pieces!
Also a gyro on the tail rotor can be very helpful when you start out!
Stand behind it for the first few hours to get the hang of it, as all of the controls get reversed from your perspective when you turn it around. It's much easier to land it and regroup than trying to fly it once it gets turned because you will be constantly correcting it the wrong direction. Sideways is also tricky as well, the sticks seem to start doing the wrong thing!
Most people will even steer an R/C car the wrong way the first few times they drive it at themselves.
Cheers!
A year and a half with 4 people eating Hormel Chili in a sealed metal tube is not the way to get to Mars alive! Unless the whole spaceship runs on methane:) Then it might get you there very quickly! Just have a hose attachment in the seat running out the back with a vapor seperator on it.
Any numbers on the specific impulse of Hormel Chili?
Thanks for adding that. I missed that in my reply. It was the topic of the parent post, but I started dozing off, so I called it quits, and hit submit. 3:30 Bedtime:)
I asked the question after failing validation with an AVR when they first came out. I wrote a little assembly MemTest loop, and let them run, I knew there were no bugs in that loop, yet it still failed occasionally on multiple p# devices.
I cringe when I look at the the code that is running so many things. The failures mode present in so many of the standard libraries used everywhere in the embedded world.
I've read the Google paper, and it's very interesting BTW.
seen?: www.amazon.com/Embedded-Systems-Firmware-Demystified-CD-ROM/dp/1578200997
Or?: www.bookf.net/p/6920-math-toolkit-for-real-time-programming
Cheers