Appendix C
Glossary
C.1
NTRIP
N
etworked
T
ransport of
R
TCM via
I
nternet
P
rotocol
•
is a protocol streaming real-time corrections over the Internet.
•
is a generic protocol based on the Hypertext Transfer Protocol HTTP/1.1.
•
is used to send differential correction data or other kinds of stream-
ing data to stationary or mobile users over the Internet. This process
allows simultaneous computer, laptop, PDA, or instrument connections to
a broadcasting host.
•
supports wireless Internet access through mobile IP networks like digital
cellular phones or modems.
The Ntrip Server could be the GPS instrument itself. This setup means the GPS
instrument is both the Ntrip Source generating the real-time data and also the
NTRIP Server transferring this data to the Ntrip Caster.
NTRiPCaster
InternetServe
r
GS_044
NTRiPClient
NTRiPServer
Ntrip and its
role in the
Internet
The Ntrip Caster
•
is an Internet server handling various data streams to and from the Ntrip
Servers and Ntrip Clients.
•
checks the requests from Ntrip Clients and Ntrip Servers to see if they are
registered to receive or provide real-time corrections.
•
decides whether there is streaming data to be sent or to be received.
The Ntrip Client receives data streams. This setup could be, for example a
real-time rover receiving real-time corrections.
In order to receive real-time corrections, the Ntrip Client must first send
•
a user ID
•
a password
•
an identification name, the so-called Mountpoint, from which real-time
corrections are to be received
to the Ntrip Caster.
The Ntrip Server transfers data streams.
In order to send real-time corrections, the Ntrip Server must first send
•
a password
•
an identification name, the so-called Mountpoint, where the real-time cor-
rections come from
to the Ntrip Caster.
Ntrip
Ntrip Caster
Ntrip Client
Ntrip Server
Glossary
81
Summary of Contents for iCON aps 200
Page 1: ...Leica iCON aps 200 User Manual Version 3 1 English ...
Page 83: ......
