| ??? 05/04/05 16:10 Read: times Msg Score: +1 +1 Informative |
#92898 - Just An Idea! Responding to: ???'s previous message |
Stanley, I did this project three years ago Tracking continous black surface My algorithm was comparing left and right sensors And then determining rotate degree of stepper motor Assume we left this machine at start up and it hasn't been in black surface from beginning, machine goes and goes straight for 10 second if any sensor didn't trigger then it rotates 90 degree and continue after 4 times rotate degree change to 80 and time change to 12 second ... Assume again now -1 and 7 are triggered together -1+7=+6 This is not enough data to distinguishing waht is rotating degree So I was decreasing speed to find more required data ... After some time i found black area Now I had second 3'th element for decision,Previous State There are some basic difference between my and your project But because of both of our source light is continous you can use from previous state of light source When your required data are not enough for decision, with the other phrase when ADC's output don't meet your demands at first decrease speed(if it is possible) for stopping more instability And secondly stay in previous state Good luck Mehdi |
| Topic | Author | Date | |
| It's alive! | 01/01/70 00:00 | ||
| Use the Force Luke! | 01/01/70 00:00 | ||
| I'm thinking... | 01/01/70 00:00 | ||
| filtering | 01/01/70 00:00 | ||
| Shaking | 01/01/70 00:00 | ||
| Mainly in vertical | 01/01/70 00:00 | ||
| Damping | 01/01/70 00:00 | ||
| Maybe the ADC | 01/01/70 00:00 | ||
| cause/cure of multiple sclerosis | 01/01/70 00:00 | ||
| Unstable feedback control system!! | 01/01/70 00:00 | ||
| HALF stable | 01/01/70 00:00 | ||
| Speculation | 01/01/70 00:00 | ||
| X - Y < constant | 01/01/70 00:00 | ||
| Deadband | 01/01/70 00:00 | ||
| Hysteresis! | 01/01/70 00:00 | ||
| oh yea ? | 01/01/70 00:00 | ||
| A (better?) way | 01/01/70 00:00 | ||
| Sample code ? | 01/01/70 00:00 | ||
| Exponential Filter Code | 01/01/70 00:00 | ||
| Cooooool | 01/01/70 00:00 | ||
| Viewtiful | 01/01/70 00:00 | ||
| I like it | 01/01/70 00:00 | ||
| Extinguisher? | 01/01/70 00:00 | ||
| Exactly! | 01/01/70 00:00 | ||
| why the hate | 01/01/70 00:00 | ||
| No hate | 01/01/70 00:00 | ||
| Well done Eric | 01/01/70 00:00 | ||
smokers | 01/01/70 00:00 | ||
| Yes,It is! | 01/01/70 00:00 | ||
| May not be visible light | 01/01/70 00:00 | ||
| Electronic cat? | 01/01/70 00:00 | ||
| Good work | 01/01/70 00:00 | ||
| Cant Play on my Win2000. | 01/01/70 00:00 | ||
| windoz media player > 7.0 | 01/01/70 00:00 | ||
| Download Accelerator | 01/01/70 00:00 | ||
| Just An Idea! | 01/01/70 00:00 | ||
| Great! | 01/01/70 00:00 | ||
| Seems to be hungry... | 01/01/70 00:00 | ||
| Try point source light | 01/01/70 00:00 | ||
| Or rotate the light source by 90° | 01/01/70 00:00 | ||
| Not point source | 01/01/70 00:00 | ||
| post the code to here | 01/01/70 00:00 | ||
| Nice! | 01/01/70 00:00 | ||
| What are the light sensors? | 01/01/70 00:00 | ||
| ***NEW CLIP HERE*** | 01/01/70 00:00 | ||
| Obvious improvement! | 01/01/70 00:00 | ||
| not shaking anymore | 01/01/70 00:00 |