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Connecting to a Real Time GNSS Connecting to a Real Time GNSS Network with TopSURVNetwork with TopSURV
July 2009
July 2009
Connecting to a Real Time GNSS Network with TopSURV
Training AgendaTraining Agenda• Two methods for Internet connection with the GRS-1 Receiver
– Internet connection within TopSURV using a Survey Configuration– Internet connection prior to TopSURV using TPS Connection Manager
• What is the process of connecting to a Real Time GNSS Network?• How do I input IP Address and Port Number information into
TopSURV?• What is a Mount Point?• What is NTRIP?• What happens if there is poor cellular coverage where I am
working?• What is the first thing that I should do after connecting to the Real
Time GNSS Network?
July 2009
Two Methods for Internet Connection with the Two Methods for Internet Connection with the GRSGRS--1 Receiver1 Receiver
Connecting to a Real Time GNSS Network with TopSURV
July 2009
Two Methods for Internet ConnectionTwo Methods for Internet ConnectionConnecting to a Real Time GNSS Network with TopSURV
• Using a Topcon GRS-1 receiver, there are two ways to begin working within a Real Time GNSS Network:– Internet Connection within TopSURV using a Survey Configuration– Internet Connection prior to TopSURV using TPS Connection
Manager
• Pick which method you want to use dependant on whether you want to send / receive data files outside of TopSURV.
TopSURV Configuration
TPS Connection Manager
July 2009
Internet Connection within TopSURVInternet Connection within TopSURVConnecting to a Real Time GNSS Network with TopSURV
• Following the instructions within your Survey Configuration, TopSURV will automatically:– Power on the internal modem OR start Bluetooth connection to an
external cell phone– Send commands to the modem to connect to the Internet
– Connect to your Real Time GNSS Network server– Use the same Mount Point that was used last
• Once field work is completed and if TopSURV is closed, the modem will also automatically be shut down. Same as above, but in reverse order.
TopSURV Configuration
July 2009
Internet Connection within TopSURVInternet Connection within TopSURVConnecting to a Real Time GNSS Network with TopSURV
• Using this method, you will not be able to instantly surf the Internet once TopSURV is closed.
• You will have to start a new Internet connection with TPS Connection Manager.
• The following screen captures show the process of creating a Survey Configuration that supports the method of having TopSURV:– Power on internal modem or open Bluetooth port
to an external cell phone– Send command to modem / cell phone to begin
connection to the Internet– Connect to GNSS Network Server– Send NTRIP User Name and Password– Automatically connect to last Mount Point used
TopSURV Configuration
July 2009
Internet Connection within TopSURVInternet Connection within TopSURVConnecting to a Real Time GNSS Network with TopSURV
• From the TopSURV main menu, go to Configure / Survey to see a listing of current Survey Configurations (Styles).
• Tap the triple dot button to the right of the GPS+ Config section.
July 2009
Internet Connection within TopSURVInternet Connection within TopSURVConnecting to a Real Time GNSS Network with TopSURV
• Tap the Add button to create a new Survey Configuration.• The name of your Survey Configuration is optional, It is common to
declare a name that includes hardware type and field work that it supports. For this example, the Survey Configuration is named GRS-1 Network.
• If using an external antenna, ensure to declare so.
July 2009
Internet Connection within TopSURVInternet Connection within TopSURVConnecting to a Real Time GNSS Network with TopSURV
• Using a GRS-1 receiver, the Modem Connect option is Controller.• However, the Network Type pull down menu allows you to specify which
method that an Internet connection will be made and used.
• Using the GRS-1 Dialup Connection option will have TopSURV automatically power the internal modem on (or connect via Bluetooth to external cell phone) and connect to the Internet.
July 2009
Internet Connection within TopSURVInternet Connection within TopSURVConnecting to a Real Time GNSS Network with TopSURV
• The Provider pull down menu offers the ability to quickly populate unique dial up parameters for supported GSM networks. Available in this list are the Internet connection settings for Cingular, T-Mobile, and AT&T wireless networks.
• For a GRS-1 receiver, the Virtual Radio Port is D (delta).• All other Survey Configuration options after this screen are user definable.
Shown above are commonly used settings.
July 2009
Internet Connection within TopSURVInternet Connection within TopSURVConnecting to a Real Time GNSS Network with TopSURV
• Again, all other Survey Configuration options after this screen are user definable. Shown above are commonly used settings.
• The Satellite System pull down menu allows you to declare if you want to track and use either GPS satellites only or GPS + GLONASS.
• This is dependant on whether the Real Time GNSS Network that you are being hosted by is also tracks and uses both satellite constellations.
July 2009
Internet Connection within TopSURVInternet Connection within TopSURVConnecting to a Real Time GNSS Network with TopSURV
TopSURV Configuration
Method
• Once done, tap the Finish button at top center.
• This will have TopSURV Network Connection Wizard immediately begin the process of getting either the internal modem or external cell phone on the Internet, connect to the GNSS Network Server, show a listing of available Mount Points, send your NTRIP User Name and Password, and begin receiving real time network corrections.
July 2009
Connecting to a Real Time GNSS Network with TopSURV
Questions?Questions?
July 2009
Two Methods for Internet ConnectionTwo Methods for Internet ConnectionConnecting to a Real Time GNSS Network with TopSURV
• Using a Topcon GRS-1 receiver, there are two ways to begin working within a Real Time GNSS Network:– Internet Connection within TopSURV using a Survey Configuration– Internet Connection prior to TopSURV using TPS Connection
Manager
• Pick which method you want to use dependant on whether you want to send / receive data files outside of TopSURV.
TopSURV Configuration
TPS Connection Manager
July 2009
Internet Connection Prior to TopSURVInternet Connection Prior to TopSURVConnecting to a Real Time GNSS Network with TopSURV
• Before opening TopSURV, use TPS Connection Manager to:– Power on the internal modem OR start Bluetooth connection to an
external cell phone– Send commands to the modem to connect to the Internet
• You now have ability to send / receive e-mail, view position or get driving directions with Google Maps, etc.
• With an Internet connection established using TPS Connection Manager prior to opening TopSURV, you simply need to use a Survey Configuration to support this method.
• Using this method, you will are able to surf the Internet outside of TopSURV.
TPS Connection Manager
July 2009
Internet Connection Prior to TopSURVInternet Connection Prior to TopSURVConnecting to a Real Time GNSS Network with TopSURV
• From the TopSURV main menu, go to Configure / Survey to see a listing of current Survey Configurations (Styles).
• Tap the triple dot button to the right of the GPS+ Config section.
July 2009
Internet Connection Prior to TopSURVInternet Connection Prior to TopSURVConnecting to a Real Time GNSS Network with TopSURV
• Tap the Add button to create a new Survey Configuration.• The name of your Survey Configuration is optional, It is common to
declare a name that includes hardware type and field work that it supports. For this example, the Survey Configuration is named GRS-1 Network.
• If using an external antenna, ensure to declare so.
July 2009
Internet Connection Prior to TopSURVInternet Connection Prior to TopSURVConnecting to a Real Time GNSS Network with TopSURV
• Using a GRS-1 receiver, the Modem Connect option is Controller.• However, the Network Type pull down menu allows you to specify which
method that an Internet connection will be made and used.
• Using the Existing Network Connection option will have TopSURV use the Internet connection that you already started with TPS Connection Manager before opening the data collection software.
July 2009
Internet Connection Prior to TopSURVInternet Connection Prior to TopSURVConnecting to a Real Time GNSS Network with TopSURV
• Enter your unique NTRIP User Identification and Password that was assigned to you by your GNSS Network Manager.
• For a GRS-1 receiver, the Virtual Radio Port is D (delta).• All other Survey Configuration options after this screen are user definable.
Shown above are commonly used settings.
July 2009
Internet Connection Prior to TopSURVInternet Connection Prior to TopSURVConnecting to a Real Time GNSS Network with TopSURV
• Again, all other Survey Configuration options after this screen are user definable. Shown above are commonly used settings.
• The Satellite System pull down menu allows you to declare if you want to track and use either GPS satellites only or GPS + GLONASS.
• This is dependant on whether the Real Time GNSS Network that you are being hosted by is also tracks and uses both satellite constellations.
July 2009
Internet Connection Prior to TopSURVInternet Connection Prior to TopSURVConnecting to a Real Time GNSS Network with TopSURV
TPS Connection Manager
Method
• Once done, tap the Finish button at top center.• This will have TopSURV Network Connection Wizard immediately begin
the process of automatically using the existing Internet connection within your GRS-1, connect to the GNSS Network Server, show a listing of available Mount Points, send your NTRIP User Name and Password, and begin receiving real time network corrections.
July 2009
Connecting to a Real Time GNSS Network with TopSURV
• While making a connection to a Real Time GNSS Network with a Topcon GRS-1 receiver, you have two options:
– Internet Connection within TopSURV using a Survey Configuration– Internet Connection prior to TopSURV using TPS Connection
Manager
• Time wise, it is pretty much the same thing.
Two Methods for Internet ConnectionTwo Methods for Internet Connection
Outside of TopSURV = 1 minute 35 secondsInside of TopSURV = 1 minute 42 second
…just about the same.
July 2009
Connecting to a Real Time GNSS Network with TopSURV
Questions?Questions?
July 2009
What is the Process of Connecting?What is the Process of Connecting?Connecting to a Real Time GNSS Network with TopSURV
• Once on the Internet, the next step in the process is to connect to the public Internet Protocol (IP) Address and Port Number of the Real Time GNSS Network server that you are using.
• Afterwards, the NTRIP User Name and Password will be sent from you to the server.
• If the User Name and Password are correct and current, then the Real Time GNSS Network server will begin sending your rover receiver corrections.
July 2009
How do I Input IP Address and Port Number How do I Input IP Address and Port Number Information into TopSURV?Information into TopSURV?
Connecting to a Real Time GNSS Network with TopSURV
GNSS Network Server
• Once the rover receiver has an Internet connection, in order to become a member of a Real Time GNSS Network, you will need to know the:– Internet Protocol (IP) Address– Port Number
• …of the Real Time GNSS Server that you are working with.
• A sample of entering an IP Address and Port number into a TopSURV Survey Configuration is:
• Make sure the slash ( / ) is correct.
12.345.678.999/8008
July 2009
What is a Mount Point?What is a Mount Point?Connecting to a Real Time GNSS Network with TopSURV
• Type of Correction Service:– Real Time Kinematic (RTK) – Single vector from nearest reference
station to the rover. Survey grade solution.– Network RTK (NetRTK) – Data from all reference stations are used to
create a virtual base station near the rover. Survey grade solution.– Differential GPS (DGPS) – Ideal for hand held or back pack receivers
to achieve sub-foot solutions in real time.
• Correction Format:– Radio Technical Commission for Maritime Services (RTCM)– Compact Measurement Record (CMR+)
Mount Points
Sample Mount Point Name = NetRTK_RTCM3
Definition of Mount Point Name = Type of Service ; Correction Format
• Once you are connected to the GNSS Network server, you then need to specify which correction service that you want from it.
July 2009
What is NTRIP?What is NTRIP?Connecting to a Real Time GNSS Network with TopSURV
• NTRIP is an acronym for Networked Transport of RTCM via Internet Protocol.
• When you think of NTRIP, think of security.
• Your NTRIP User Name and Password is issued to you by your GNSS Network Manager.
• It is a method of controlling who is on the network, when, and where.
July 2009
What Happens if there is Poor Cell Coverage?What Happens if there is Poor Cell Coverage?Connecting to a Real Time GNSS Network with TopSURV
• The rover receiver must be able to receive corrections from the base / reference station. If the rover receiver is not able to receive corrections, you will have an Autonomous Position solution type.
• If the project area does not have cell phone coverage, that would be an ideal place for a mobile base receiver with a broadcasting radio.
July 2009
What is the First Thing that I Should Do After What is the First Thing that I Should Do After Connecting to the Network?Connecting to the Network?
Connecting to a Real Time GNSS Network with TopSURV
• Once you have connected to a Mount Point, the first thing to do is check that the rover receiver is getting corrections. You will want to check it’s Status.
• From the TopSURV main menu, go to Setup GPS / Status.• Tap the System tab at bottom of the screen.
July 2009
What is the First Thing that I Should Do After What is the First Thing that I Should Do After Connecting to the Network?Connecting to the Network?
Connecting to a Real Time GNSS Network with TopSURV
• Look at your Radio Link indicator. The rover should have 100% reception within your cell phone network.
• As soon as the rover has 100% Radio Link, it’s Position Type will change to Float.
• Once Initialized Satellites count is five or greater, the receiver’s Position Type will update to Fixed.
Connecting to a Real Time GNSS Connecting to a Real Time GNSS Network with TopSURVNetwork with TopSURV
