Triumph 2 with DGPS??

S

Steve

New Member
Hi,
I'm looking at purchasing a couple of T2s but the information I'm being given is that they cannot be set up to run DGPS (RTK but not DGPS).
It seems to indicate in the data sheet that they should work fine but that's not what I'm being told.

I currently use Trimble ProXH units with a DGPS correction service over IP (GPSnet VicPos cors network in Australia). The service is submetre and works fine with the ProXH's getting corrections from my cell phone (well actually through a field computer doing the corrections in the software).
Does anyone have any experience with the Triumph 2 with DGPS?

thanks.
Steve
 
J

JVan

Member
I have a T2, which I want to use in a similar manner as you use your ProXH units. The T2 should be able to do this, according to its data sheet.
I need DGPS positions sent by NMEA sentences over serial port, preferably a bluetooth serial. If I can't figure out how to do this pretty soon, I'm going to have to ditch this T2 and go back to Novatel.
I know this post doesn't help you Steve, hopefully someone here can help us both.
 
J

JVan

Member
Geophysical data collection.
Several of my instruments will record positions via NMEA sentences through a serial port in real time. In this manner I don't have to paint a grid using measuring tapes and spray paint, the datalogger records the instrument position along with the reading. I use it on large sites where it's not feasible to paint a grid (e.g. sites that are several acres or more in size), or on small sites where the investigation area is oddly shaped and a grid would be difficult to construct.

I used to use a Trimble Ag114 with Omnistar corrections, it yielded sub-meter accuracy in real time. The Ag114 was primarily designed for using on tractors and combines, it worked well though you have to carry a backpack to hold the battery and cables.
I later switched to a Novatel SmartV-1 with Canadian DGPS corrections, it yielded sub-0.7 meter accuracy in real time with no subscription fees, until the Canadians decided to turn off the DGPS SBAS service. It worked well though you still have to have a backpack.
I then decided to try a T2, intending to use a WIFI hotspot to allow the T2 to get corrections from CORS networks. It would be more hassle to get a CORS subscription in each state that I work in, but it's worth the extra accuracy. I liked that the T2 is wireless, has its own battery, and has GLONASS.
 
Doug Carter

Doug Carter

Active Member
5PLS
Matt, The T2 with DGPS correction would work well in the timber industry, There are a lot more customers in the GIS field that are willing to spend under $8000.00 then there are willing to spend $25000.00.
 
Matt Johnson

Matt Johnson

Well-Known Member
5PLS
After I enabled SBAS in NetView I able to get a DGPS solution:

upload_2015-2-14_21-51-17.png


upload_2015-2-14_21-54-34.png
 
J

JVan

Member
Yes, I saw that in the GREIS manual.
But how do I get the T2 to send those sentences (specifically GGA and GSA) to one of the serial ports?
 
S

Steve

New Member
Hi Matt, Thanks for responding.
I need to map vegetation at the sub-metre level. We don't have SBAS in Australia so I need to use the CORS network which streams real time corrections over internet.
I thought the JAVAD GISmore was able to do it but the demo model I had was only able to stream RTK corrections for some reason and not sub-metre. The RTK service costs about double the sub-metre mapping service.
Any help is greatly appreciated.
Steve
 
Matt Johnson

Matt Johnson

Well-Known Member
5PLS
JVan said:
Yes, I saw that in the GREIS manual.
But how do I get the T2 to send those sentences (specifically GGA and GSA) to one of the serial ports?
Click to expand...

I believe the GREIS command to output these to serial port A at 1 Hz should be: em,/dev/ser/a,nmea/{GGA,GSA}:1

upload_2015-2-16_0-18-32.png


I am not quite sure about setting everything up though. I asked Vladimir Zhukov if he could comment in here and help get things setup for you.
 
Matt Johnson

Matt Johnson

Well-Known Member
5PLS
Steve said:
Hi,
I'm looking at purchasing a couple of T2s but the information I'm being given is that they cannot be set up to run DGPS (RTK but not DGPS).
It seems to indicate in the data sheet that they should work fine but that's not what I'm being told.
Click to expand...

Who have you talked to about this?
 
Vladimir Zhukov

Vladimir Zhukov

Well-Known Member
JAVAD GNSS
Hi Matt,

Triumph 2 WiFi DGPS + NMEA output to Bluetooth (virtual serial ports)

This looks like a good task for JMT to simplify configuration of such mode.
Yuri is going to add it within next couple of days.

If you would like to use with NetView, than configuration steps are following:

1. Setup WiFi settings (WPA encrypted for example):
%0%set,/par/net/dhcp/client/mode,on
%1%set,/par/net/dhcp/server/mode,off
%2%set,/par/net/wlan/ap/id,"00:00:00:00:00:00"
%3%set,/par/net/wlan/ap/ssid,"JAVADGNSS"
%4%set,/par/net/wlan/ap/mode,wpa
%5%set,net/wlan/ap/passphrase,"*******"
%6%set,/par/net/wlan/mode,on
%7%set,reset,y
upload_2015-2-16_11-54-42.png

Fig.1

2. Set up NTRIP Client and Code Differential mode of the receiver
%1%set,net/tcpcl/ntrip/addr,78.46.59.40 (selected IP address is an example)
%2%set,net/tcpcl/ntrip/port,2101
%3%set,net/tcpcl/ntrip/user,****
%4%set,net/tcpcl/ntrip/passwd,*****
%5%set,net/tcpcl/ntrip/mountpt,ALME0 (seleted mount point is an example)
%6%set,net/tcpcl/ntrip/nmea,-1
%7%set,dev/tcpcl/a/imode,rtcm
%%%set,net/tcpcl/mode,ntrip

%8%set,pos/mode/cur,cd

upload_2015-2-16_11-57-6.png

Fig.2

upload_2015-2-16_11-57-27.png

Fig.3


3. Set NMEA output to the both Bluetooth ports:

%1%em,dev/blt/a,nmea/GGA
%2%em,dev/blt/b,nmea/GGA

upload_2015-2-16_11-58-27.png


Fig.4


Regards,
Vladimir
 
J

JVan

Member
Thanks for the help Matt and Vladimir. I have to read up on all this stuff, my current knowledge is insufficient but still this helps.
 
J

JVan

Member
Success!!!
Partial success anyway. I am getting GGA and GSA sentences on my DOS datalogger's serial port through an AirCable Bluetooth->Serial adapter. The adapter connects to the T2 with no problem, and apparently is the T2's port B. Awesome.
Still have to figure out how to get my CORS corrections via the internet connection of my phone...
 
Matt Johnson

Matt Johnson

Well-Known Member
5PLS
JVan said:
Success!!!
Partial success anyway. I am getting GGA and GSA sentences on my DOS datalogger's serial port through an AirCable Bluetooth->Serial adapter. The adapter connects to the T2 with no problem, and apparently is the T2's port B. Awesome.
Still have to figure out how to get my CORS corrections via the internet connection of my phone...
Click to expand...

Glad to hear this. Steps 1 & 2 that Vladimir posted should show you how to connect to a CORS station through your phone.
 
J

JVan

Member
Which of the RT products should I be using (see PDF below). I got the T2 to connect (though it intermittently loses the connection, I haven't yet figured out why), and it shows the TCP client connection state as "connected", however it shows that the solution is "Stand Alone".
 

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