homemade autosteering egnos

stef

Member
Location
belgium
the software is running on .net platform.
Rtk is not implemented, I actually have other topic/functionalities to implement; so rtk is not foreseen soon...
I used commercial proportional electrovalves, I built a controller which communicates with the software and manages these electro valves.
 

stef

Member
Location
belgium
Very good!

About 0:09 in the 2nd vid are you turning wheel full lock and it's staying there or is it auto steering the headland turn?

in that video the system was running in "manuel mode":
the controller has a switch in order to activate/deactivate the autosteering.
when reaching the headland,
  1. I have to deactivate the autosteering,
  2. then turn manually the wheel left or right in order to go away from the current target track
  3. then reactivate the autosteering, generally this operation occurs when tractor is at 90degrees regarding tracks direction.
  4. the tractor then is able to reach alone the next target track.

In the meantime, I developed an algorithm in order to fully automate the headland turn.
in that case
  1. I had first to delimit the field boundary
  2. choose the headland width (around 20 meters)
  3. create the mastertrack (A-B or curve)
  4. track path is pre-calculated regarding turning radius versus implement width in order to optimize the turn (not too tight/wide)
  5. engage the auto steering
  6. the tractor will then follow the tracks and change from track to track autonomously when reaching the headland.
  7. as the implement is not managed by the system, I still have to do it manually(pto, lifting...)
I hope that my explanations are clear.
feel free to ask more info.

stef
 
Last edited:

stef

Member
Location
belgium
here is the result, the picture is taken just at the boundary between two tracks
 

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Robt

Member
Location
Suffolk
Does it not disengage of you touch steering wheel via either an encoder or pressure?
Not knocking just interested to know
 

stef

Member
Location
belgium
Does it not disengage of you touch steering wheel via either an encoder or pressure?
Not knocking just interested to know

no problem, remarks are welcome!

Indeed there is no disengagement through a sensor (encoder, pressure,...); this is a voluntary choice in order to minimize the impact or reduce the installation procedure.
However it would not be that difficult to implement it ( imean technically speaking and software control). But as I had the idea to install it on various machine at the farm (already 2 tractors), maybe the combine next summer, it could come quickly a lot of tinkering.
 

stef

Member
Location
belgium
a system will be soon installed on tractor of a neighbor in order to have feedback from an external user; this would help me to improve the system...
 

stef

Member
Location
belgium
no problem, remarks are welcome!

Indeed there is no disengagement through a sensor (encoder, pressure,...); this is a voluntary choice in order to minimize the impact or reduce the installation procedure.
However it would not be that difficult to implement it ( imean technically speaking and software control). But as I had the idea to install it on various machine at the farm (already 2 tractors), maybe the combine next summer, it could come quickly a lot of tinkering.

Robt,
do you think that an automatic disengagement is necessary/required? what is your feeling about this? thx
 

Blue.

Member
Livestock Farmer
the software is running on .net platform.
Rtk is not implemented, I actually have other topic/functionalities to implement; so rtk is not foreseen soon...
I used commercial proportional electrovalves, I built a controller which communicates with the software and manages these electro valves.

What type/make of proportional valve did you use?

They are very expensive and I'm looking for some for a different type of project but still 12volt.

Top marks! There are some smart cookies at grass root level.(y)
 

Badshot

Member
Location
Kent
ok, i will think about it.
The automatic/manual switch is a big push switch in the center of the panel`s controller, so it is actually not a problem to disengage very quickly.
tks
You need the automatic override just in case things go tits up in a big hurry and you don't have time to think, Just react.
I'm very impressed with what you've done.:)
 

stef

Member
Location
belgium
ok, i will think about it.
The automatic/manual switch is a big push switch in the center of the panel`s controller, so it is actually not a problem to disengage very quickly.
tks
You need the automatic override just in case things go tits up in a big hurry and you don't have time to think, Just react.
I'm very impressed with what you've done.:)


Ok, I will work on this security feature on a furture release.
here is a picture of the controller (3 Steering Controllers), whith this "famous" auto/Manu push button (the big blue one)
 

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SFI - What % were you taking out of production?

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Red Tractor drops launch of green farming scheme amid anger from farmers

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As reported in Independent


quote: “Red Tractor has confirmed it is dropping plans to launch its green farming assurance standard in April“

read the TFF thread here: https://thefarmingforum.co.uk/index.php?threads/gfc-was-to-go-ahead-now-not-going-ahead.405234/
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