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Topic: A Low Cost Approach to Graphical Waterfall (Read 31677 times) previous topic - next topic

Khalid

Simply...You can't afford me..

Author Of:
http://my-woodcarving.blogspot.com/
http://www.free3dscans.blogspot.com/
http://my-diysolarwind.blogspot.com/

Oops..some one gave me Karma...:)

Khalid

Finally a success...We have tested 64 solenoid valves waterfall all day long in our FunFair community show for charity fund raising. Lightning and background still needs improvement however technically we have a very good response from the computer-electronics-hardware communication. The handshake protocol worked flawlessly.
Here is the video. The header is at atmospheric pressure and outlet of solenoid valve is 6mm.
http://www.youtube.com/watch?v=7CXB0o599Hk
Simply...You can't afford me..

Author Of:
http://my-woodcarving.blogspot.com/
http://www.free3dscans.blogspot.com/
http://my-diysolarwind.blogspot.com/

Oops..some one gave me Karma...:)

Peter_I

"Nothing is foolproof to a sufficiently talented fool"

sergeyk

Hi Khalid.

Thank you for sharing results with us. It is huge amount of work for hobby project.
I'm also in waterfall area since 2009. My work was conroller, firmware, PC software and power logic. Processor was ATmega324(not arduino based system) and pictures stored in flash memory card.
Last summer we launched it in full power - 256 solenoids. Of course it was commercial project :).
Some notes on my system(in Russian) with pictures you can download here:
http://yadi.sk/d/YDgaPzggJDtHx

Video:
http://youtu.be/WPzLQAZ3fao
Sorry for poor quality, made on phone camera and backlight not very bright.

Khalid

Excellent work. I wonder, how two different approaches were meet to make such a graphical waterfall.  I don't know why you have used sliders (scroll bars) for delay.
Thanks for sharing:)
Simply...You can't afford me..

Author Of:
http://my-woodcarving.blogspot.com/
http://www.free3dscans.blogspot.com/
http://my-diysolarwind.blogspot.com/

Oops..some one gave me Karma...:)

sergeyk

Delay scroll bars:

Dimmer delay - impacts on backlight. Program scans image and for each horizontal line produces color and intensity of backlight. At the end of image there could be black pixels. So backlight will be flashing. For that reason backlight dimms smoothly from current intensity to zero. And this slider sets speed of dimming.
Jet calibration sliders. Valves have mechanical variations and speed of their reaction will be different. This group of sliders helps to slow down too fast valves and slightly compensate their variations. Because of limited AVR 8-bit processor perfomance this feature was realized on PC side. The payment is ten times larger files. But user can disable this feature and save space on memory card.

Khalid

Youtube is banned in my country, i shall check how you manage the lighting. :)... Nice to see the similar thing you have done with totally different approach. May be i have done  the same on most economical way ;)
Simply...You can't afford me..

Author Of:
http://my-woodcarving.blogspot.com/
http://www.free3dscans.blogspot.com/
http://my-diysolarwind.blogspot.com/

Oops..some one gave me Karma...:)

sergeyk

Let me know if you still have troubles with youtube. I can place it on other hosting.

Here some older pictures made during tuning one of sections(32 valves).

Khalid

Hi,
Thats very good. What solenoid valves you have used and what is the estimated price of your 256 solenoid valve waterfall. Is it running continuously. Can you fall the time?... Can you host the video on Dropbox etc?
Simply...You can't afford me..

Author Of:
http://my-woodcarving.blogspot.com/
http://www.free3dscans.blogspot.com/
http://my-diysolarwind.blogspot.com/

Oops..some one gave me Karma...:)

sergeyk

It was joint work with one guy from advertising agency. He worked on all mechanics(including valves) and I worked on electronics.
Valves are custom design and based on 12V miniature relays. I dont know final price.
Windings are controlled by voltage signals(0/+12V). Current control could enhance frequency responce but it is more complex and expensive.

Waterfall controller has its own RTC chip(ds1307) and can show time in o'clock mode or just insert time between pictures on playlist.

Videos are placed here:
http://yadi.sk/d/dM8Fu7duJe8LE
http://yadi.sk/d/L38_hJMAJe8Mb

Khalid

wow..i liked the videos but the videos are in fast forward mode. You are genius:) .. Your work is great. I created my waterfall all-alone. I believe if you have commitment and you know how to combine Electronics+programming+mechanical you can do anything you imagine.
Thanks for sharing the videos.
Simply...You can't afford me..

Author Of:
http://my-woodcarving.blogspot.com/
http://www.free3dscans.blogspot.com/
http://my-diysolarwind.blogspot.com/

Oops..some one gave me Karma...:)

sergeyk

I have found HQ video on my HDD.
http://yadi.sk/d/jCAwJGa3JnBZC
Download it to see in full quality.

Khalid

Thats look great. Can you please tell us the distance between the outlet of solenoid valves. Can you post the picture of solenoid valves.
Simply...You can't afford me..

Author Of:
http://my-woodcarving.blogspot.com/
http://www.free3dscans.blogspot.com/
http://my-diysolarwind.blogspot.com/

Oops..some one gave me Karma...:)

sergeyk

Distance between outlets was about 1cm. Each solenoid drives 2 valves. So actually there is 256 solenoids and 512 water jets.
Unfortunately I have no photos of solenoids. It was small know-how of customer.

Last month I had a telephone talk with that customer. He want to build new controller with enhanced functions(touchscreen TFT display, GUI, WiFi, USB flash, etc.-I think to use panel computer), waterfall on 512 solenoids and backlight on 64RGB channels(now it is 1 RGB channel). If everything will be OK then I can post new photos:).

Jacques679

Hi Guys
I have been reading on this and was looking to do something similiar.I have the determination but not all the knowledge.Is there a way of getting the software to run this.The rest i will be able to do through trial and error.Great works btw.Khalid you have done amazing job on this.

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