homemade autosteering egnos

[sleepy]

If using a Trimble rover, it would need to be able to accept RTCM 3.x corrections (as well as CMR/CMR+/CMRx) for it to work with a Reach base.

To set expectations, this isn't a commercial/industrial quality receiver. The development team are totally open about this, see:

https://docs.emlid.com/reach/faq/

The receiver is based on a 72-channnel U-blox NEO-M8T chipset. As Northern farmer alluded to although this receiver supports up to 4 constellations (a max of 3 constellations at any one time) it crucially only supports a single L1 frequency on GPS, GLONASS. So it's ultimate accuracy will not be as good as an L1/L2 multi-constellation receiver, because it can't compensate for atmospheric/ionospheric effects as well as a dual frequency receiver can. The trade-off of course is cost. Dual frequency, multi-constellation receivers cost a whole lot more.

But for the price, it *could* be good enough.

It's still going to be miles better than egnos!

 

[Pheasant Surprise]

It's still going to be miles better than egnos!

No doubt. Be good to test it against a commercial RTK receiver/base to see how good it is for the money.

 

[sleepy]

No doubt. Be good to test it against a commercial RTK receiver/base to see how good it is for the money.

I would put money on a dual frequency version being just around the corner. Once people realise what's possible when they start putting RTK in drones, watch the prices plummet!

It's amazing that the GPS companies have managed to keep the prices so absurdly high, and the market so divided / separated (survey / ag) for quite so long.

 

[sleepy]

Here's a dual frequency one for not a lot more
http://www.tersus-gnss.com/?gclid=CIu7iu2a08wCFQ4TGwodWmIGqg

 

[Pheasant Surprise]

Cheap chips! Just had a look, the ublox chips are about £35 bought singly. I don't think they design/produce any L1/L2 based chips (yet).

Big jump up in price to "proper" dual-frequency, multi constellation chips. Would there be an incentive to drop the price of L1/L2 if the L1 chips are good enough for drones and semi-pro/hobby market?? Possibly if there was enough volume.

Probably find that Hexagon, Trimble or Topcon (or Google if we're talking drones) would just add these guys to their portfolio if they found them interesting/threatening.

 

[Pheasant Surprise]

Here's a dual frequency one for not a lot more
http://www.tersus-gnss.com/?gclid=CIu7iu2a08wCFQ4TGwodWmIGqg

Chinese guys want in desperately. Domestic market alone is huge.

BeiDou was a great way to jump start their industry.

Too bad Galileo was a monumental disappointment. Over promise and under deliver.

 

[Pheasant Surprise]

thanks for the English course
so i see what you mean. in my system ab lines and headland are independents. you can define several ab lines whenever you want and recall/use one of them whenever you want. headland contour is not mandatory. if headland contour is made, the system can additionaly:

• calculate total area and so on,
• avoid to spray outside the field, so while turning in headland, if boom flies over the neighbour field, sections remain closed.
• can calculate and optimal path (based on ab lines) in order to avoid maneuvers (backward/forward) when using narrow implements (drill 3 meters in my case) and take in charge the full headland turn in automatic steering mode
• draw an inner virtual headland at whatever distance you want in order to know when to start/stop seeding (this the most useful functionality in my case)

when an ab line is built/recalled, a predefined (by user, by default 10) amount of parallels are shown , so you can have a visual situation. I use it when praying at night in order to known when the next swarth is coming, because sometime it is really difficult to see it.

regards

stef

Reactive topographic control could be a neat feature to add to your software in the future @stef?

Steal a march on the big boys

https://thefarmingforum.co.uk/index.php?threads/actual-area.119284/#post-2481236

 

[stef]

Reactive topographic control could be a neat feature to add to your software in the future @stef?

Steal a march on the big boys

https://thefarmingforum.co.uk/index.php?threads/actual-area.119284/#post-2481236

Yes could be interesting...
Needs more calculations; not really an issue.
As a first step I will integrate the altitude in the drawing, just to have a "realistic" view

 

[Lecrub]

@stef will you be able to write a tutorial about your autosteer system?
Or at list make a the description of the element you employ to manage the system (antena, software, hardware,...)
Is it far from Cerea system?

I would be really interested to ses how you managed everything together

 

[stef]

@stef will you be able to write a tutorial about your autosteer system?
Or at list make a the description of the element you employ to manage the system (antena, software, hardware,...)
Is it far from Cerea system?

I would be really interested to ses how you managed everything together

@Lecrub: Tutorial is not in the scope right now; besides the soft/system is not actually available for users (actually mounting the system on 2 neighbor's tractor)
I already gave some explanations along this topic(did you read all posts?) but I'll be glad to answer to specific question/concern.

 

[Daniel]

Good work all, the days of Trimble/Topcon et al robbing customers blind for a box of relatively simple electronics and obscenely priced unlock codes are hopefully coming to an end!

 

[Robt]

Bugger you have sussed us out! Guess I'd better look for a new career......
Besides stef can form an rtk network, develop thousands of different vehicle platforms, train hundreds of operators per year, travel to 10's of shows, sell it all for peanuts and make no money....
Stef your work so far is very impressive to start from scratch.

Il have to become a farmer. All you do is throw some seed at the ground , how hard is that!

 

[Daniel]

Bugger you have sussed us out! Guess I'd better look for a new career......
Besides stef can form an rtk network, develop thousands of different vehicle platforms, train hundreds of operators per year, travel to 10's of shows, sell it all for peanuts and make no money....
Stef your work so far is very impressive to start from scratch.

Il have to become a farmer. All you do is throw some seed at the ground , how hard is that!

There are enough gps enabled machines out there now to recoup the development costs, train the operators, and pay for the salesmans discovery for far less than £12-£15k per machine. It's a cartel.

 

[Robt]

Start your own , it really is easy! Honestly I spend all day either drinking coffee, on here or at home sleep,

 

[Robt]

May I ask Daniel if it's that easy and a huge cartel why you didn't build your own. Or that when yours would steer straight you didn't fix it yourself. You waited for the cartel dealer to fix it for you?

Yes I have bitten! Myself and s the other guys like CPP etc work bloody hard. None of us are rich...

 

[Daniel]

May I ask Daniel if it's that easy and a huge cartel why you didn't build your own. Or that when yours would steer straight you didn't fix it yourself. You waited for the cartel dealer to fix it for you?

Yes I have bitten! Myself and s the other guys like CPP etc work bloody hard. None of us are rich...

I don't imagine you or CPP are rich from it. It will be Trimble/Topcon/JD who are pocketing the majority of the cash.

Ref the Case, I paid them good money for the system so yes I expected the dealer to come out to it repeatedly until it worked. They have tens of thousands of AFS pro's out there now, they will have screwed their parts suppliers to the floor on the kit so their profit margins mean they can afford a few call outs to cover their lack of product development....

The major supermarkets run a cartel and take 50% of the sales price of my eggs as their profit. I get about 33% of the sale price having taken most the risk and done 75% of the work. Why don't I set up my own supermarket chain? I think the barriers to entry might be too high/I was born 50 years too late.

 

[John 1594]

Been honing your people skills again i see @Robt....

@Daniel ....my autosteer seems to play up occasionally,sometimes goes a few inches off line, it usually manifests itself about 7-8am on a monday morning...following a sunday afternoon sampling the latest real ale they have on tap at the local

 

[sleepy]

May I ask Daniel if it's that easy and a huge cartel why you didn't build your own. Or that when yours would steer straight you didn't fix it yourself. You waited for the cartel dealer to fix it for you?

Yes I have bitten! Myself and s the other guys like CPP etc work bloody hard. None of us are rich...

Isn't the point that it is a piece of pee to get a tractor auto steering itself up a field?

Stef has singlehandedly managed to build a system that does exactly that in a few short years as a hobby, and I'm sure he will soon get the terrain compensation and rtk bit sorted out.

Trust me, the price of autostsering is going to crash through the floor in a massive way in the next few years.

And as farmers become more clued up and the software gets better there is going to be less need for technicians coming out to do simple calibrations etc.
I was quoted over 500 quid plus a massive markup on the kit itself for a fully installed ez steer. I installed it in 6 hours from beginning to end and saved ~1500 quid on the kit by buying from the USA.

 

[John 1594]

Isn't the point that it is a piece of pee to get a tractor auto steering itself up a field?

Stef has singlehandedly managed to build a system that does exactly that in a few short years as a hobby, and I'm sure he will soon get the terrain compensation and rtk bit sorted out.

Trust me, the price of autostsering is going to crash through the floor in a massive way in the next few years.

Over priced ipads...thats the first thought that come into my thoughts....

although...fast cars, loose women and a stable full or horses cant be funded by your average joe at £12/hr i suppose...so you got to make up the difference somewhere

 

[Robt]

The irony John ........ Tech is bad... Well accept when you want to boast about your amazing skills at driving old relics.....
Past caring what you think of my people skills John as I'll never deal with you

Sleepy, it really is that easy, go on start up yourself... What's the worse that could happen? Oh yes, a know it all customer that thinks autosteer is for wimps and that real men don't need it.....

If I dared mention that fence I'd get the thread removed and lots of messages about bullying yet I am allowed to get sarky comments..... I have feelings too.....