DPOS questions.

[Nate The Surveyor]

OK, on day one, I went and worked for about 1-1/2 hrs. Had trouble, because it was working at 1hz. Tech support got me going, back in 5 hz. (reboot after software update fixed it, Thanks John Evers) I got a whole day work done in 1-1/2 hrs. My my, this is nice.


So, this gives me 2 SPOS files. OK.
I come home late. Tired. I don't dpos it. Got in late, in the cold.

Does not matter, that I have quasi SPC on the base... because I have localized on the FIRST day. And, the base station is on SPC bearings. But a bastard coord system.
This makes all my coords cohesive, with each other. I can finish my job, without dpos.

Go back, next day. Work for maybe 5-1/2 hrs.
Another base file.
So, we now have 3 DPOS on the same base station.

If I use Dpos 1, will it only update the shots made, during that session?
And, Dpos 2, And Dpos 3.

What I'd LIKE is to average these 3 dpos sessions.
And, UPDATE the UNDERLYING Lat Lon coords. Leaving the localization intact.

Anyway, what would be a good procedure on this?

To recap, we are on a local system. And have 3 DPOS sessions. And, we want to dpos it, and make a nice refined coord, for that base site.
Thanks Dr Javad, and all your fine crew, for making an awesome GPS system!

Nate

 

[Matt Johnson]

All coordinates with the same base station coordinate will be adjusted anytime you update a base station coordinate so only of the DPOS files needs to be processed. As far as a good procedure, I personally would get rid of the localization and then have your points in a SPCS or modified SPCS.

 

[Shawn Billings]

All of the tools are there, Nate, to combine results from DPOS and shift each base session to the combined result. But there isn't currently an automated process for this. I'll share more later. I need to verify a few things before I provide more details. Generally I think you should be able to use the Average feature under CoGo Tools and average the base points stored for each session, creating a new point. Then change the base position for any rover point within a base session to the new averaged position. All rover positions related to that base session will follow. Repeat for each base session, changing the base position for any rover point within a session (all rover points within the session would translate as well). Continue until all base sessions are translated to the Average base position.

 

[Nate The Surveyor]

I have been thinking about what you said today. All 3 sessions are dpos'd but the coord are not modified.

I'll allocate a few hrs in the office to get things straightened out.
I think a POINTS DASHBOARD would be good, to set up what page stuff goes on, and to prevent goofy point names. I have some of them to rename, to make the file work right. And, some points are on wrong page... you know, general cleanup, after using it, without a dashboard... At the dashboard, we SET the page that points are stored on. We set the number groups, for things. Field calc points get a place to go. Different numbering system. That sort of thing.

 

[Shawn Billings]

I think you're right, Nate. The more I think about it, the more I like it.

 

[Robert P Stenerson]

Yesterday I set up my Triumph-1 as base, running in beast mode, and used my Triumph-LS to do a couple hours of surveying just to learn how to do offsets, play around with line drawing, etc. The Base/Rover setup went perfectly, and I had the T-1 record every 30secs for 241 epochs (just over two hours.) Other than a mysteriously lock up about hour into the survey, everything went well, and at the end of the session I reconnected to the T-1 with the LS Base Rover Setup, and shut down the base, and downloaded the NurseryBase point GNSS data with no problems. Today I went into Cogo, then DPOS to have it do the process, and adjust on my NurseryBase point, and after about two minutes it comes back with a Error 1 expected value.

Then a pop up screen comes on with

What should I do next?

Thanks,
Rory

 

[John Evers]

Robert,

This is being investigated. In the meantime, I recommend that you use the command to Archive your Project to a USB jump drive. You will be able to then copy to your PC.

Once you copy the raw file with the .jps file extension to your PC, open a browser and go here: http://geo.javad.com/dpos/

You can submit the file, and the result will be processed in a few minutes. The report will look somewhat similar to a OPUS report. Use the Copy To Clipboard command, and then paste the text into you favorite text editor.

Feel free to call me if you need some help. My number is under Live Support.

John Evers

 

[Adam]

Robert,

This is being investigated. In the meantime, I recommend that you use the command to Archive your Project to a USB jump drive. You will be able to then copy to your PC.

Once you copy the raw file with the .jps file extension to your PC, open a browser and go here: http://geo.javad.com/dpos/

You can submit the file, and the result will be processed in a few minutes. The report will look somewhat similar to a OPUS report. Use the Copy To Clipboard command, and then paste the text into you favorite text editor.

Feel free to call me if you need some help. My number is under Live Support.

John Evers

Yes and the file will process fine doing manually like John recommends. I sent my project in earlier today to see what is happening. Rory, you can change the base coords to what you get from DPOS and it will shift the rover points just like it does when executed from the LS.

 

[Robert P Stenerson]

Okay thanks John and Adam, I just used my USB cable and WMDC, copied the .jps file to my PC, looked at it with my old JAVAD JPS Viewer program (no Errors looks good to go) so I will be uploading using DPOS web interface. I just wanted to make sure I wasn't muffing this up, I am such a newbie to this.

 

[Shawn Billings]

The development team is getting ready for the next big thing with DPOS. I'm sure it will be back to work soon. Thanks for the heads up.

 

[Robert P Stenerson]

Okay, got my results back from the DPOS website (that's an OPUS killer if ever I've seen one) and I applied my shift to the base. My first target was a PADOT disk, a.k.a. NGS PID KW2440, which I got from 300epochs, Verify with Resets, 2 min, 3 Max Groups, 10 Confidence 10 Consistency, Beast Mode, unfortunately hand held pole (bipod wasn't available) my surveyed point SKW2440 came in 0.08' Northing, 0.08' Easting, and -0.10 Ortho Geoid12a. Not setting steel to it, but gives me some confidence. I was only 170' from the base so I don't think Grid to Ground was a factor.

Still wondering why the DPOS shift didn't work in the Triumph-LS. Always another way I guess.

 

[Adam]

Robert, DPOS is back up and running in the LS. I tried mine this morning and it went thru fine.