GPS - Versionsgeschichte

Alexanderg: /* GPS error */

2016-06-03T08:12:26Z

‎GPS error

2016-05-29T22:28:07Z

‎Wiring:

2015-05-22T19:04:08Z

‎Visualization of GPS data

2015-05-22T18:59:40Z

‎Visualization of GPS data

2015-05-22T18:58:01Z

‎Visualization of GPS data

2015-02-27T18:30:13Z

‎Visualization of GPS data

2015-02-27T18:27:09Z

‎Visualization of GPS data

2015-02-27T18:25:55Z

‎Visualization of GPS data

2015-02-27T18:09:00Z

‎Visualization of GPS data

2015-01-30T14:05:29Z

‎GPS error

@@ Zeile 35: / Zeile 35: @@
 = GPS error =
-Typical GPS error is 2-5 meters (at a sample rate of 1 Hz). As this is not sufficient as a replacement for a perimeter wire, GPS can only be seen as an extension or for global navigation (navigation from one lawn to another lawn) or to improve the result of a [http://wiki.ardumower.de/index.php?title=Sensor_fusion sensor fusion].
+Typical GPS error is 2-5 meters (at a sample rate of 1 Hz). As this is not sufficient as a replacement for a perimeter wire, GPS can only be seen as an extension or for global navigation (navigation from one lawn to another lawn).
 = Further links =

@@ Zeile 12: / Zeile 12: @@
 = Wiring: =
-  GPS TX (3.3V compatible) -- Arduino RX
+  GPS VCC -- PCB VCC
-  GPS RX (3.3V compatible) -- Arduino TX
+  GPS GND -- PCB GND
-  GPS VCC -- Arduino VCC 5V
+  GPS TX  -- PCB GPS RX
-  GPS GND -- Arduino GND
+  GPS RX  -- PCB GPS TX
 = Visualization of GPS data =

@@ Zeile 20: / Zeile 20: @@
 GPS data (course, speed, position etc.) can be plotted by pfodApp. One neat thing I discovered is that you can get precise heading and speed even when moving short distances (< 2m). This works because the GPS receiver is evaluating the signal phase due to the doppler effect.
-  hdop    measurement error (the more satellites are from different directions, the lower the error)
+  hdop    measurement error indication (the more satellites are from different directions, the lower the error)
   sat     number of satellites in view
-  spd     ground speed
+  spd     ground speed m/s
-  course  ground course
+  course  ground course degree
-  alt     altitude
+  alt     altitude meter
   lat     latitude
   lon     longitude

@@ Zeile 20: / Zeile 20: @@
 GPS data (course, speed, position etc.) can be plotted by pfodApp. One neat thing I discovered is that you can get precise heading and speed even when moving short distances (< 2m). This works because the GPS receiver is evaluating the signal phase due to the doppler effect.
-  hdop    measurement error (the more satellites are from different directions, the less the error)
+  hdop    measurement error (the more satellites are from different directions, the lower the error)
   sat     number of satellites in view
   spd     ground speed

@@ Zeile 19: / Zeile 19: @@
 = Visualization of GPS data =
 GPS data (course, speed, position etc.) can be plotted by pfodApp. One neat thing I discovered is that you can get precise heading and speed even when moving short distances (< 2m). This works because the GPS receiver is evaluating the signal phase due to the doppler effect.
 <gallery>

@@ Zeile 18: / Zeile 18: @@
 = Visualization of GPS data =
-GPS data (course, speed, position etc.) can be plotted by pfodApp:
+GPS data (course, speed, position etc.) can be plotted by pfodApp. One neat thing I discovered is that you can get precise heading and speed even when moving short distances (< 2m). This works because the GPS receiver is evaluating the signal phase due to the doppler effect.
 <gallery>
 File: gpsplot.jpg | GPS plot
-File: gpsplotting.jpg | GPS plot (heading/speed via doppler)
+File: gpsplotting.jpg | GPS plot (heading/speed via doppler effect)
 File: gpstracking.jpg | GPS 2d map (tracked perimeter)
 </gallery>