This is one area that is of interest to those who are thinking about "What's the noise, in the Javad camp?"
I'll do my best to do this, however, there are some variations, on this data flow. But this is kind of typical.
Drive to job, and select a place in the clear, good for base. This is a job you have never been on.
Set up base, Triumph 2. It's the little green one. Turn it on. After turning it on, it is fully controlled via the LS.
Set up radio, some 20' away, on a pole. Plug it in, and it's on.
Turn on the LS.
Input job name.
Sync radios.
Use a "Here" for base coord.
Base is ALWAYS collecting a raw file.
Collect data all day. RTK All boundary shots ALSO have raw data.
Return to base, connect, and download BASE raw file, into the ROVER LS.
Now the rover "has it all".
Go home, or to a place that has wifi. (You can use cell for mifi) Or, as I usually do, hook a LAN wire directly into the side of the LS.
Press DPOS button. ALL the raw data is SENT to a JAVAD computer, where it is processed. Then, returned, telling you how much shift occurred to put your days work into SPC.
Depending on your settings, now the BASE coord is SHIFTED, to be on TRUE SPC. (as opposed to the HERE you used, to start the job).
And, all your boundary shots, have a RTK solution, and a POST PROCESSED solution. You are flagged, if there is any appreciable difference between RTK and PPK.
Now, you upload the day's work, into your CAD machine, and you are STARTING your job, with PURE spc. You upload your days work, via a thumb drive. Plug the thumb drive into the LS, export coords, in ASCii format, comma delimited. Then, stick the Thumb Drive into a port in your CAD station, and upload the ascii file.
There is your day's work, in SPC, ready for you to work on.
Other systems I have seen, require you to: Go to job, and set up base for 4+ hrs, go home, and OPUS it.
Return to job, and do RTK off the SPC coord.
The Javad condenses this, so it all happens at once. One trip to the field, and you are on SPC. Before downloading the Data collector, LS. (The LS has a data collector built in).
Others have asked, so I wrote this down.
There are other things, such as LDP, and localize etc. but, the CORE coords are LAT LON.
I wrote this down, to save time, explaining this.
I hope this helps.
Nate
PS, this post is NON solicited, and non compensated. It is simply my contribution back to this fine profession. Helping fellow professionals stay current.
Nate The Surveyor, post: 444491, member: 291 wrote: ...
Other systems I have seen, require you to: Go to job, and set up base for 4+ hrs, go home, and OPUS it.
Return to job, and do RTK off the SPC coord.
The Javad condenses this, so it all happens at once. One trip to the field, and you are on SPC. Before downloading the Data collector, LS. (The LS has a data collector built in).
...
NatePS, this post is NON solicited, and non compensated. It is simply my contribution back to this fine profession. Helping fellow professionals stay current.
Not necessarily true. I actually start the base with static data being collected and RTK broadcasting. Do the field work collecting RTK and static points. Return to the office and download the data. Then either shift it with the GPS office software (Trimble Business Center) or export coordinates and import to CAD and shift the points there. Pretty cool that you can do it all on the Javad unit, but it can be done with other equipment.
My buddy has a set of r8 units. I dont think he has tbc. Is tbc expensive, or does it come with a set of r8's?
I'm not 100% sure but I believe some other brands actually allow you to upload the OPUS report and will adjust your points based on the imported OPUS report.
Nate The Surveyor, post: 444510, member: 291 wrote: My buddy has a set of r8 units. I dont think he has tbc. Is tbc expensive, or does it come with a set of r8's?
I believe TBC is expensive compared to others, but there are other options available. You can just download the data as ascii file and import to your drawing and adjust. All depends on your workflow.
The problem I had run into with my older GPS system was that the raw data did not get upgraded with opus.
There's a number of surveyors going out sitting for 4 hours getting there opus and then coming back the next day to actually survey. Maybe they need Trimble Business Center!
Nate The Surveyor, post: 444520, member: 291 wrote: The problem I had run into with my older GPS system was that the raw data did not get upgraded with opus.
There's a number of surveyors going out sitting for 4 hours getting there opus and then coming back the next day to actually survey. Maybe they need Trimble Business Center!
Or maybe "they" just need to learn how to use their equipment and software properly.
😉
Loyal, I hear what you are saying.
Speaking from myself I never learned all the capability of my equipment. But these other guys were well experienced surveyors.
There is nothing on the market that compares to DPOS in terms of capability or simplicity and it's a free service to owners of Javad Triumph LS receivers, so even if there was some similar service available, which there isn't, you likely won't find it so affordable.
I used OPUS for many years. It's a great resource. With DPOS though, I never download data or have to manually translate data. Ever. That results in zero transcription errors. Zero issues with metric conversion and it reprojects into whatever coordinate system you want on the fly.
DPOS also has access to more CORS stations than OPUS and processes GPS and GLONASS.
Loyal, post: 444521, member: 228 wrote: Or maybe "they" just need to learn how to use their equipment and software properly.
😉
That is correct 100%.
With Topcon Magnet, one can collect static data at the base. They can either store the static data on the base receiver, on an SD card, or directly onto the controller. Then after just 2 hours, and past the calendar, you can upload it from the Tablet to OPUS using built in cell modem and SIM card. Then get a solution in minutes. Then change the base coordinate with the corrected OPUS, and all the raw data is adjusted. No translation or rotations needed.
I did this in Ohio earlier this week. Started base at 8:58am, collected static and RTK until 10:59am. Sent the TPS file to OPUS and had a solution by 11:15am. I also ran a VRS check, and 24 hours resent the data to OPUS.
Manually change the base coordinate?
Also, you exit magnet to do this manually?
Shawn Billings, post: 444548, member: 6521 wrote: Manually change the base coordinate?
Also, you exit magnet to do this manually?
No exiting Magnet Field. Just go to Edit > Raw Data. Adjust the coordinate of the BASE, as per your OPUS report. Often the Autonomous position is less than 3ft difference from the OPUS. Press OK, Magnet will automatically adjust all the raw data.
You submit to OPUS from Magnet? Or do you submit from web browser?
Does Magnet read the OPUS report and adjust or do you manually edit the base coordinate?
I feel bad for you guys that have to do all of that just to get onto a specific coordinate system state plane or whatever. In WI we have a HARN network that has posted coordinates for one of 3 state plane zones and UTM. We can then convert those coordinates in seconds over to county if we like with a publicly available program. The HARN points, depending on the type, even have very good vertical that can be used. We used to go to the closest HARN point and then transfer a point over to the job site but now with the WISCORS network and geoid updates we can use the cell modem on the DC and start a job in whatever coordinate system we want. We run Trimble R6's and TSC-3's without a problem, until they stop making replacement parts for the GPS.
WISCORS Sensor Map:
https://wiscorsweb.dot.wi.gov/TrimblePivotWeb/Map/SensorMap.aspx
Local HARN Point:
https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=ON1302
Does anybody else have this easy of a setup or am I just lucky to be working where I am?
Jacob Stephenson, post: 444561, member: 12396 wrote: I feel bad for you guys that have to do all of that just to get onto a specific coordinate system state plane or whatever. In WI we have a HARN network that has posted coordinates for one of 3 state plane zones and UTM. We can then convert those coordinates in seconds over to county if we like with a publicly available program. The HARN points, depending on the type, even have very good vertical that can be used. We used to go to the closest HARN point and then transfer a point over to the job site but now with the WISCORS network and geoid updates we can use the cell modem on the DC and start a job in whatever coordinate system we want. We run Trimble R6's and TSC-3's without a problem, until they stop making replacement parts for the GPS.
WISCORS Sensor Map:
https://wiscorsweb.dot.wi.gov/TrimblePivotWeb/Map/SensorMap.aspxLocal HARN Point:
https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=ON1302Does anybody else have this easy of a setup or am I just lucky to be working where I am?
INCORS R O C K S too!
" with the WISCORS network and geoid updates we can use the cell modem on the DC and start a job in whatever coordinate system"
On the Ohio project I did start with the Ohio VRS system, then verified the coordinates with Topnet Live, along with a final check using OPUS Static. In my book the +2 hour OPUS always holds highest accuracy and my final check. Problem on that project was all of these coordinates from the VRS and OPUS were in harmony, but the published coordinate on contract plans provided for the aerial targets (not drone) differed by N4.5ft / E0.5ft / Z 1.7ft
I checked every possible configuration (US fet, Int. Ft, NAD96, NAD2011, etc. At first it appeared they may have used International Feet, instead of US Survey feet. When I tried the conversion, the Northing error was double, to 9.5ft. So all I can say is the topo mapping from aerial photogrametry is on an assumed datum that is very close to state plane, and show datum shift.
What i believe really makes the WISCORS ( in conjunction with the WISCCRS) network powerful it the predefined LDPs and the extensive Height Modernization work.
I'm glad to see that others are coming up with less clunky means to get onto spc.
Fundamentally, progress is good, for everybody. Since the cost of memory (RAM) has fallen very far, we should expect to see 1" data in new CORS stations, as well as multiple constelations.
I know Javad uses glonass in their solutions. I'm not sure if any others do.
Satelites are my "control stations in the sky"
It truly is a easier system, than traversing all over creation.
N
Scotland, post: 444519, member: 559 wrote: I believe TBC is expensive compared to others, but there are other options available. You can just download the data as ascii file and import to your drawing and adjust. All depends on your workflow.
I have TBC Base edition. It's $500. Although it's fairly limited compared to the more expensive versions, I can adjust my RTK data in it. I process my static using Trimble RTX or OPUS online, then rename the point name in the XML email attachment to match the point name in TBC. Then just drag and drop it into TBC and it automatically adjusts everything. You can also process your baselines yourself, but the Base edition will only process L1 GPS. Then I export to whatever format I want for map production. For $500, it's certainly very capable software. I'll probably upgrade to the standard version later.
For a solo operator, the Javad setup is the Bomb.
But, for a company, I can see the usefulness of separation... (like tbc) So that the field gear, is not stuck doing office tasks.
I wish there was some kind of companion software, for a pc, that allowed you to look at, and DPOS, and select either rtk, or ppk, and then make averages, where multiple shots occured, for the Javad.
For me, a solo operator, all of it happening inside the field gear is fine... But it would be nice to see it on my bigger screen.
O well. At technologies current pace, what's it gonna be in 20 yrs?
It's all good.
N
