290 lines
5.7 KiB
HTML
290 lines
5.7 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML
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><HEAD
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><TITLE
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>Connection to Global Positioning System (GPS)</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="Linux on the Road"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Solutions with Mobile Computers"
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HREF="mobile-guide-p5c2-solutions-with-laptops.html"><LINK
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REL="PREVIOUS"
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TITLE="Connection to Cellular Phone"
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HREF="mobile-guide-p5c2s10-cellular-phone.html"><LINK
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REL="NEXT"
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TITLE="Connection via Amateur Radio (HAM)"
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HREF="mobile-guide-p5c2s12-ham.html"></HEAD
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><BODY
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CLASS="sect1"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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SUMMARY="Header navigation table"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>Linux on the Road: </TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="mobile-guide-p5c2s10-cellular-phone.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Chapter 16. Solutions with Mobile Computers</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="mobile-guide-p5c2s12-ham.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="sect1"
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><H1
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CLASS="sect1"
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><A
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NAME="mobile-guide-p5c2s11-gps"
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></A
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>16.11. Connection to Global Positioning System (GPS)</H1
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><P
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> From the
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<A
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HREF="http://tldp.org/HOWTO/Hardware-HOWTO/"
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TARGET="_top"
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>Hardware-HOWTO</A
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>
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I know there is <EM
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>Trimble Mobile GPS</EM
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> available for Linux.
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You may also connect a GPS via a serial port. Most GPS receivers have
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a data port and can connect to a PC with a special serial cable.
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</P
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><P
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>
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<P
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></P
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><UL
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><LI
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><P
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> Differential GPS is a technique to apply a correction factor from a
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known location to a GPS signal. This can substantially reduce the
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uncertainity in the GPS location. Normally the correction signal is
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acquired using a special radio receiver: <B
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CLASS="command"
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>dgpsip</B
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>
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allows you to receive a DGPS signal via TCP/IP, and send it to the GPS
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connected to your serial port.
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</P
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></LI
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><LI
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><P
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> <A
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HREF="http://www.wombat.ie/gps/"
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TARGET="_top"
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>DGPS</A
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>
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is a project to put together a low cost hardware and software solution
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for Differential GPS (in both real time mode using RTCM correction
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format and in post processed mode).
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</P
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></LI
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><LI
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><P
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> <A
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HREF="http://www.mayko.com/gpsd.html"
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TARGET="_top"
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>gpsd</A
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>
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is a daemon that listens to a GPS or Loran receiver and translates
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the positional data to simplified format that can be more easily
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used by other programs, like chart plotters. The package comes with
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a sample client that plots the location of the currently visible
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GPS satellites (if available) and a speedometer. Added support for
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the DeLame EarthMate as well as a new 'speedometer' mini client.
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</P
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></LI
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><LI
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><P
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> The
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<A
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HREF="http://www.gbdirect.co.uk/"
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TARGET="_top"
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>QtGPS</A
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>
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package contains a piece of software for
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<SPAN
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CLASS="acronym"
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>UNIX</SPAN
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>/Linux/X and a GPS receiver. It performs
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logging and replaying of a journey, supporting a moving-map
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display. QtGPS works with Lat/Long and British OSGB (Ornance
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Survey) co-ordinate systems.
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</P
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></LI
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><LI
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><P
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> <A
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HREF="http://www.geog.uni-hannover.de/grass/index.php"
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TARGET="_top"
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>GRASS</A
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>
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(Geographic Resources Analysis Support System) is a free
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software raster and vector based GIS, image processing system,
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graphics production system, and spatial modeling system.
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</P
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></LI
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><LI
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><P
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> <A
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HREF="http://www.eazy.net/users/fgiannan/xaprs/"
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TARGET="_top"
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>XASTIR</A
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>
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is a free APRS (Automatic Position Reporting System) program.
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APRS(tm) was developed to track mobile GPS stations with
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two-way radio to convey position reports, messaging, weather
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and more. XASTIR plots this information on a map on your
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screen where you can see the entire world or zoom down to
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street level.
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</P
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></LI
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><LI
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><P
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> <A
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HREF="http://www.amphibious.org/gps.html"
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TARGET="_top"
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>as-gps</A
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>
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contains a basic support library for accessing the
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inexpensive ($20) Aisin-Seiki GPS Module previously
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available at mavin.com. The package also includes several
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simple console utilities for dumping satellite status,
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location, and time and for synchronizing the system clock.
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</P
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></LI
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><LI
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><P
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> <A
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HREF="http://academy.cas.cz/~gis/"
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TARGET="_top"
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>gmap</A
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>
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is a map viewer with emphasis on temporal data. It hopes
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to evolve into a free and powerful Geographical
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Information System.
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</P
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></LI
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><LI
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><P
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> <A
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HREF="http://www.mgix.com/gps3d/"
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TARGET="_top"
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>gps3d</A
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>
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is a set of utilities that lets you manipulate your GPS
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from your Linux box. One nice feature is the ability to
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view GPS data (track, waypoints, fix, etc.) on an
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OpenGL, 3D texture-mapped model of earth.
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</P
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></LI
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></UL
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>
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</P
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="mobile-guide-p5c2s10-cellular-phone.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
|
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><A
|
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HREF="mobile-guide-p5c2s12-ham.html"
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ACCESSKEY="N"
|
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>Next</A
|
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></TD
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></TR
|
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><TR
|
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><TD
|
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WIDTH="33%"
|
|
ALIGN="left"
|
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VALIGN="top"
|
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>Connection to Cellular Phone</TD
|
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><TD
|
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WIDTH="34%"
|
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ALIGN="center"
|
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VALIGN="top"
|
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><A
|
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HREF="mobile-guide-p5c2-solutions-with-laptops.html"
|
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ACCESSKEY="U"
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>Up</A
|
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></TD
|
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><TD
|
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WIDTH="33%"
|
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ALIGN="right"
|
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VALIGN="top"
|
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>Connection via Amateur Radio (HAM)</TD
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></TR
|
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></TABLE
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></DIV
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></BODY
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></HTML
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> |