How to connect the GPS device (Leica CS25) to the lab top,

[JamalNUMAN]

How to connect the GPS device (Leica CS25) to the lab top,

In principle, I???m wondering if there is a way to connect the GPS device (Leica CS25) with the lab top such that one can use the ArcPad installed in the lab top instead of using the ArcPad installed in the tablet of the GPS device.

[ATTACH=CONFIG]27580[/ATTACH]

Is there a way?


Thank you

Best

Jamal

[JamalNUMAN]

If I look at the product folder for the GG03 here, it says that for the "integrated real time" SBAS correction (Satellite Based Augmentation System), your accuracy is about <0.9 meter. With correction against a known, surveyed, reference station as in DGNSS (Differential Global Navigation Satellite System), also called DGPS, you should achieve around 0.4 meter, depending on the distance between your reference point and the location where you are surveying. Lastly, with RTK, you should be able to get down to less than a decimetre, up to 1 cm.

So, without tying yourself to any ground based reference point as in DGNSS or RTK mode, you will have about 1 meter accuracy at best. Please note that for both DGNSS/DGPS and RTK, you need to be able to contact a known reference station. A lot of countries have government or commercially maintained reference networks for this, with fixed GPS receiver base stations broadcasting their positions and corrections (CORS - Continously Operated Reference Station). This may be a paid service in your area.

I don't know if Palestine has its own CORS network?, but these articles might be interesting for you:

The Permanent GNSS Network and its RTK Application in Israel
http://www.fig.net/commission5/wg52/ts01c_salmon_3248.pdf

Permanent GPS Network-based Measurement Practice in Israel
http://www.mapi.gov.il/UsefulInfo/MapiPublications/FIG2009_forrai_3496.pdf

As Brett says, some training might be in order...

Thank you very much Marco for the very informative answer.

It really helps that you have solid background regarding the local circumstance in Palestine. Dealers\resellers in Palestine, in most cases, have no robust technical experience in this field.

1. My issue in this thread was to find a way to connect my GPS system with other tablet\laptop due to that fact that the touch screen of the Lieca CS25 is really irresponsive and made my life hard when doing few click. I wanted to replace it with other tablet (like Dell �??latitude 10 with windows 😎 so that I can enjoy doing my survey tasks. By the way, is the tablet of the Lieca CS25 has a particular chipset that receives signals even without the GG03 Antenna?

2. Then I moved to the accuracy issue. I got that the subscription is like $700/year (in Palestine) for the correction. Technically, how to check the current system on my Lieca CS25 machine (internet connection + GG03 Antenna): DGNSS\DGPS\RTK? And then is there a command that shows the level of accuracy that can be reached?

[ATTACH=CONFIG]28983[/ATTACH], [ATTACH=CONFIG]28984[/ATTACH]

Thanks are extended to Brett

Best

Jamal

[MarcoBoeringa]

1. My issue in this thread was to find a way to connect my GPS system with other tablet\laptop due to that fact that the touch screen of the Lieca CS25 is really irresponsive and made my life hard when doing few click. I wanted to replace it with other tablet (like Dell �??latitude 10 with windows 😎 so that I can enjoy doing my survey tasks. By the way, is the tablet of the Lieca CS25 has a particular chipset that receives signals even without the GG03 Antenna?

Brett answered your question already twice (and the specs of the CS25 also speak of it):

If you are only using the internal SiRF GPS chipset, you can set your COM settings accordingly.

The internal GPS of the CS25 unit is on COM 3, with a baud rate of 38400. So if your software was on the CS25 unit, you'd make the appropriate COM port and baud rate settings.

2. Then I moved to the accuracy issue. I got that the subscription is like $700/year (in Palestine) for the correction. Technically, how to check the current system on my Lieca CS25 machine (internet connection + GG03 Antenna): DGNSS\DGPS\RTK? And then is there a command that shows the level of accuracy that can be reached?

I am not entirely sure, because I have never used the Zeno Field, Office or Zeno Connect software, but looking at the screenshot you yourself posted, I guess the Show GNSS Status menu option in the Zeno Field software will show the accuracy:



Brett can undoubtedly guide you better here.

[MarcoBoeringa]

1. My issue in this thread was to find a way to connect my GPS system with other tablet\laptop due to that fact that the touch screen of the Lieca CS25 is really irresponsive and made my life hard when doing few click. I wanted to replace it with other tablet (like Dell �??latitude 10 with windows 😎 so that I can enjoy doing my survey tasks.

Did you actually manage to create a Bluetooth connection between your laptop and the GG03 antenna using the Zeno Field or Connect software on your laptop?

The only other option to connect the GG03 to your laptop seems a dedicated type of cable, with a Lemo connector on one side (that connects to the GGO3, see these Leica specs for the GGO3), and a serial RS232 on the other side, see this link:

http://www.surveyequipment.com/accessories/cables/leica-gev162-2.8m-gps-data-transfer-cable-lemoseri...

Since most modern ultrathin tablets / laptops tend to lack this rather bulky and old type serial port, you will probably need a converter from RS232 to USB too, to be able to connect it to your laptop (The Leica CS25 is fitted with RS232 port according to the specs), like for example this one:

http://www.startech.com/Cards-Adapters/Serial-Cards-Adapters/USB-RS232-DB9-Serial-Adapter-Cable~ICUS...

[JamalNUMAN]

Did you actually manage to create a Bluetooth connection between your laptop and the GG03 antenna using the Zeno Field or Connect software on your laptop?

The only other option to connect the GG03 to your laptop seems a dedicated type of cable, with a Lemo connector on one side (that connects to the GGO3, see these Leica specs for the GGO3), and a serial RS232 on the other side, see this link:

http://www.surveyequipment.com/accessories/cables/leica-gev162-2.8m-gps-data-transfer-cable-lemoseri...

Since most modern ultrathin tablets / laptops tend to lack this rather bulky and old type serial port, you will probably need a converter from RS232 to USB too, to be able to connect it to your laptop (The Leica CS25 is fitted with RS232 port according to the specs), like for example this one:

http://www.startech.com/Cards-Adapters/Serial-Cards-Adapters/USB-RS232-DB9-Serial-Adapter-Cable~ICUS...

Many thanks Marco,

I have already sent an e-mail to the re-seller of Leica �??Geosystem inquiring the best way to get the GG03 connected to other tablet (like Dell Latitude 10) that is fast and very responsive.

We have licensed ArcPad and wanted to know which other software\hardware components are required to establish such connection (GG03 and tablet)

I�??m waiting their answer.

[MarcoBoeringa]

Many thanks Marco,

I have already sent an e-mail to the re-seller of Leica �??Geosystem inquiring the best way to get the GG03 connected to other tablet (like Dell Latitude 10) that is fast and very responsive.

We have licensed ArcPad and wanted to know which other software\hardware components are required to establish such connection (GG03 and tablet)

I�??m waiting their answer.

Good, but looking at the specs of the Dell Latitude 10, it clearly says it supports Bluetooth, which is also the way to connect to the GG03. So I repeat my question: did you manage to create a Bluetooth connection from one of your laptops or tablets supporting it, to the GG03 GPS receiver?

I don't think you will be needing anything extra, besides what you already have. Except maybe it might be better to switch to Leica Zeno Field instead of ArcPad. Leica Zeno Field seems a modified ArcPad designed for easy Leica GPS access, see here:

http://www.leica-geosystems.com/en/Leica-Zeno-Field-Office_79643.htm

*** EDIT *** I forgot to read back the older posts, but you already seem to have Zeno Field, considering the screenshot you posted. So if you manage to create that Bluetooth connection to the GG03 from your preferred device running Zeno Field, I guess you are done.

[JamalNUMAN]

Good, but looking at the specs of the Dell Latitude 10, it clearly says it supports Bluetooth, which is also the way to connect to the GG03. So I repeat my question: did you manage to create a Bluetooth connection from one of your laptops or tablets supporting it, to the GG03 GPS receiver?

I don't think you will be needing anything extra, besides what you already have. Except maybe it might be better to switch to Leica Zeno Field instead of ArcPad. Leica Zeno Field seems a modified ArcPad designed for easy Leica GPS access, see here:

http://www.leica-geosystems.com/en/Leica-Zeno-Field-Office_79643.htm

*** EDIT *** I forgot to read back the older posts, but you already seem to have Zeno Field, considering the screenshot you posted. So if you manage to create that Bluetooth connection to the GG03 from your preferred device running Zeno Field, I guess you are done.

Very much appreciated Marco for the help,

You have already provided very useful information pertaining to connecting our Leica CS25 with reference stations for correction.

What I couldn�??t figure out is the way the reference stations recognizes our CS25 tablet\GG03 Antenna? How our CS25 is detected by the reference base?

1. Is the internal GPS in the CS25 tablet is registered? How it is registered? IP address of the CS25 tablet?

2. Is the GG03 is registered?

I tried to connect my Dell tablet (latitude 10) with the GG03 but sounds not to work. The Dell tablet recognizes the GG03 Antenna #205964 but required passcode. What does the passcode refer to in this case?

[ATTACH=CONFIG]29175[/ATTACH], [ATTACH=CONFIG]29176[/ATTACH]

[MarcoBoeringa]

What I couldn�??t figure out is the way the reference stations recognizes our CS25 tablet\GG03 Antenna? How our CS25 is detected by the reference base?

1. Is the internal GPS in the CS25 tablet is registered? How it is registered? IP address of the CS25 tablet?

2. Is the GG03 is registered?

I am not entirely sure what you mean with "registered". Bluetooth as a wireless connection method / protocol has its own way of establishing connections. You may wish to have a look here for example:

How To Use Bluetooth On Windows 8

Bluetooth on Wikipedia

I tried to connect my Dell tablet (latitude 10) with the GG03 but sounds not to work. The Dell tablet recognizes the GG03 Antenna #205964 but required passcode. What does the passcode refer to in this case?

The connection is via Bluetooth. The passcode is a security feature of Bluetooth. Sometimes you only need to confirm an already displayed passcode, and at other times to type one you know from configuring it on the other device or documentation of the device, as in your case.

However, I can't tell whether the passcode is fully configurable or fixed for each individual GG03 antenna. Brett probably can tell.

If I needed to guess, a candidate to try would be the equipment number (Equip. No.) or, in a bad case of recycling vital info already displayed and send out as part of the Bluetooth device name in Windows, the same Serial Number (S. No.) as marked on the type plate of the GG03.

[JamalNUMAN]

I am not entirely sure what you mean with "registered". Bluetooth as a wireless connection method / protocol has its own way of establishing connections. You may wish to have a look here for example:

How To Use Bluetooth On Windows 8

Bluetooth on Wikipedia



The connection is via Bluetooth. The passcode is a security feature of Bluetooth. Sometimes you only need to confirm an already displayed passcode, and at other times to type one you know from configuring it on the other device or documentation of the device, as in your case.

However, I can't tell whether the passcode is fully configurable or fixed for each individual GG03 antenna. Brett probably can tell.

If I needed to guess, a candidate to try would be the equipment number (Equip. No.) or, in a bad case of recycling vital info already displayed and send out as part of the Bluetooth device name in Windows, the same Serial Number (S. No.) as marked on the type plate of the GG03.

Sorry for the confusion.

What I meant is that in case I need to have subscription in a local company to get XYZ positions corrected, then based on what my GPS machine (tablet + antenna) is registered at that company? What kind of configuration is done between my GPS and the company so that the points I capture are automatically corrected? On other words, how the reference station recognizes my GPS? What type of information do I need to supply the company with to get my GPS machine connected (to the reference station) and thus to get my XYZ points corrected?

[BrettBlack · Accepted solution]

If a bluetooth passkey is required by the driver, then it is "0000" (remove the quotations).

As far as network corrections are concerned, the requirements depend on the provider. If it is NTRIP, then they would provide the IP address and port number as well as a username and password. NTRIP also requires you to send your current location via the GGA NMEA string, so be sure to toggle on the "Use NTRIP with Server" section when entering your Real-time profile. If it is a DirectIP connection, then all that is needed is the IP address and port number. All this information comes directly from the provider.

You will need to make certain you have an active internet connection. The CS25  has an internal GSM modem, so you can insert a SIM card with a data plan associated with it to access the internet. Depending on how new the CS25 is, the GSM modem is either managed by OneClick Internet or AirCard Watcher software. You can also use an external WiFi modem as well.

All corrections are provided in real-time. If you provider is sending dual-frequency RTK corrections via NTRIP you will select a mountpoint from the source table. The network I use, I select RTCM3_Max, RTCM3_IMAX or RTCM3_NEAR. This provides me with centimeter level accuracy with the same configuration you are using.

[JamalNUMAN]

If a bluetooth passkey is required by the driver, then it is "0000" (remove the quotations).

As far as network corrections are concerned, the requirements depend on the provider. If it is NTRIP, then they would provide the IP address and port number as well as a username and password. NTRIP also requires you to send your current location via the GGA NMEA string, so be sure to toggle on the "Use NTRIP with Server" section when entering your Real-time profile. If it is a DirectIP connection, then all that is needed is the IP address and port number. All this information comes directly from the provider.

You will need to make certain you have an active internet connection. The CS25  has an internal GSM modem, so you can insert a SIM card with a data plan associated with it to access the internet. Depending on how new the CS25 is, the GSM modem is either managed by OneClick Internet or AirCard Watcher software. You can also use an external WiFi modem as well.

All corrections are provided in real-time. If you provider is sending dual-frequency RTK corrections via NTRIP you will select a mountpoint from the source table. The network I use, I select RTCM3_Max, RTCM3_IMAX or RTCM3_NEAR. This provides me with centimeter level accuracy with the same configuration you are using.

Many thanks Brett for the very useful answer. This solves my issue.

The screenshots below shows where the server name\address\port\user name\password are provided to get connected with the RTK and DGPS

[ATTACH=CONFIG]29443[/ATTACH], [ATTACH=CONFIG]29444[/ATTACH], [ATTACH=CONFIG]29445[/ATTACH]

Best

Jamal