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Update ufps locate authored by Keith Halcro's avatar Keith Halcro
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# Base Station Setup
# UFPS-Locate
## Base Station Setup
Place the base station above a location with some marker that will remain undisturbed for the entire season. You can use the [Radio Mobile Online tool](https://www.ve2dbe.com/english1.html) to estimate radio coverage with the following settings:
| Name | Value |
......@@ -10,13 +11,13 @@ Place the base station above a location with some marker that will remain undist
| TX Antenna Gain | 5dB |
| RX Antenna Gain | 5dB |
# Rover and Base Station Communication
## Rover and Base Station Communication
The base station needs a precise location to broadcast to receivers. The GPS board needs to be fed that information from an operator. The Raspberry Pi in the rover units can communicate with the base station GPS unit and have the required scripts on the Desktop.
Get the usb to serial cable from the GPS case, and connect the usb to the usb passthrough on the rover plate. Connect the serial end to the port on the base station. The GPS board in the base station can now be accessed by the scripts run from the Raspberry Pi.
# Log Self Survey
## Log Self Survey
Connect a FAT formatted (FAT16, FAT32, exFAT) USB drive to the usb port on the base station. Note that the GPS unit stops logging if the drive capacity hits 95%, and the surveying will create roughly 30MB/hr. Open a terminal on the raspberry pi and run the following command to enable logging.
```
......@@ -25,7 +26,7 @@ Connect a FAT formatted (FAT16, FAT32, exFAT) USB drive to the usb port on the b
Let the base station log for 4-8 hours before gathering the usb drive. The log files will contain 60 minutes of data before a new file is opened, to minimize the effect of file corruption in the event of power loss. Finer details of the logging process can be viewed on the SwiftNav [getting started guide.](https://support.swiftnav.com/support/solutions/articles/44001907896-piksi-multi-standalone-logging)
## Process Log Files
### Process Log Files
The log files are in .sbp format and have to be converted to [RINEX](https://en.wikipedia.org/wiki/RINEX) through [SwiftNav's sbp2rinex tool.](https://support.swiftnav.com/support/solutions/articles/44001907895-sbp-to-rinex-converter-and-data-post-processing)
......@@ -49,7 +50,7 @@ teqc -O.dec 30 obs_output/* > {base_station}_{year}.obs
```
The file name is not important, but should be something descriptive.
## Submit Log Files
### Submit Log Files
Submit the merged file to Canadian Spatial Reference System Precise Point Positioning (CSRS-PPP) available at [Natural Resources Canada's website](http://nrcan.gc.ca/) to get a surveyed location.
Make sure to select the ‘Static’ and ‘NAD83’ radio buttons and select ‘Epoch of GPS Data’ from the ‘Epoch (Adapted)’ dropdown menu. Use CGVD2013 as the vertical datum.
......@@ -66,7 +67,7 @@ This script will also disable logging, just to prevent accidental logs from bein
The base station will now broadcast this location and enable nearby receivers to achieve RTK precision.
# Mobile Plot Surveys
## Mobile Plot Surveys
The rover program will automatically start when the Raspberry Pi is powered on. Select a file to log data to and wait until the streaming data is in RTK Fixed mode before capturing points.
Enter the plot name into the text box in the upper-right and then hit ‘Capture’ to log a single point. Do not include commas in the plot name.
......