Commander1024/radiation-tagger
Commander1024/radiation-tagger
1
0
Fork 0
Code Issues 1 Pull Requests Releases Wiki Activity

Added Geigercounter instructions.

Marcus Scholz 2020-04-22 18:19:02 +02:00
parent 2ba51dba67
commit 2f3312b43c
2 changed files with 24 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

BIN
images/geigerlog_set_datetime.png Normal file

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 95 KiB

31
preparation.md

@ -11,32 +11,49 @@ Good thing is, that the clock of the most consumer / prosumer devices does not d
## Mobile Phone
Mobile phones are unproblematic regarding time. They usually already sync theirselves via NTP oder the carrier network and usually get their timezone right.
Energy Saving options for apps might become a problem eventually, if your OS decides to send it into sleep mode. So you might want to define an exception:
Android:
### Android
Search for the app in your launcher, long-press it and select the "i" for info, now got to "energy saving function".
![App energy saving][android_app_engerysave]
Search for your app (yes, seriously, again) unter "all apps", klick it and select "do not optimize".
![Disable energy saving][android_app_exception]
[android_app_engerysave]: images/android_app_energysave.png
[android_app_exception]: images/android_app_exception.png
### iPhone and exotics
I don't own either, so no instructions or screenshots. `¯\_(ツ)_/¯`
### GPS Logger
My tool doesn't really care, which program created the gpx-file, as long as it follows GPX 1.0/1.1 standard.
My tool (or the CSV library I use) doesn't really care, which program created the gpx-file, as long as it follows GPX 1.0/1.1 standard.
I got used to [GPS Logger](https://play.google.com/store/apps/details?id=com.mendhak.gpslogger) on Android. It seems to be free.
To get precise locations for your photos, there have to be datapoints in the recording close to the time the picture was taken. But I don't want to stress the phone's battery too much. So I went with an interval of 5s and a distance of 5m between two datapoints. And I keep the GPS locked during the time it records.
![GPS Logger erformance][gpslogger_performance]
![GPS Logger distance][gpslogger_distance]
![GPS Logger interval][gpslogger_interval]
[gpslogger_performance]: images/gpslogger_performance.png
[gpslogger_distance]: images/gpslogger_distance.png
[gpslogger_interval]: images/gpslogger_interval.png
## Geigercounter
This is the most critical part to get right, honestly. The internal clock is not as stable as I wished it was and drifts by quite a few seconds per day. So it is wise to set the clock every time you go out. But be careful as it produces funny results when the time jumps "backwards". But it is possible to set the clock with the geigercounter turned off. Erasing the "Saved Data" on the device after setting the clock does also help, but then - of course - you have to pull the log after every tour.
If you use the `geigerlog` tool as described here, make sure your Notebook timezone is set correctly and that it has got Internet access for NTP to work. :-)
Open `GeigerLog`, connect to the device and select Device -> GMC Series -> Set Date+Time:
```
==== Set Date&Time of GMC Device ================================================
Date and Time from device is: 2020-04-22 18:12:50
Date and Time from computer is:2020-04-22 18:09:52
Device is faster than computer by 178.0 sec
Setting device time to computer time
New Date and Time from device is:2020-04-22 18:09:52
```