There is a core description about the idea, the data flow, the need for the partner stations including some cost estimations. This is the content of EarthLAT1200_Project.pdf:
- aim of the project
- core meeting point
- data flow structure
- short outlook of a single partner station
- different contribution levels for partner sations
- estimated costs of a partner station.
A more detailed description of a partner station - here KEPLERUHR - contains:
- outlook of a single partner station
- HW/SW-structure
- configuration files for automated readout
- estimated costs of a partner station.
Different approaches to the design of the camera and housing exist. Within our experience there are some points of common interest:
- keep the housing waterproof from top, but allow for a hole downside for letting humidity flow outside
- protect the housing from direct sun radiation by a separated shield of e.g. aluminium - which also keeps hard rain/snow from falling to the housing/the lens
- the housing should allow for WLAN signal passing into it if connected wireless
- at Sdcam-Raspi there are two external temperature sensors: one for inside the housing and the second for outside the housing; prevent them from direct sun radiation
- the Sdcam-Raspi must be plugged via a electromechanical switch to power in order to power on before sunrise and power off ca. 30 min after sunset; The Raspi goes to HALT/OFF modus ones a day and therefore does not need to operate permanently.
Here are some images of cameras, camera housing, alu shields, power support
(click to show more / enlarge):
Director
- Kurt Niel, Grieskirchen, Austria
Server Development - Landing page (2018/19)
- Michael Mayrhofer, HTL Grieskirchen, Austria
- Julian Zeilinger, HTL Grieskirchen, Austria
KEPLERUHR
- Kurt Niel, Grieskirchen, Austria
Most Resources are within the GitHub repository kepleruhr/Sdcam. There are step by step introductions within two branches/approaches to get the Raspberry system running:
- image - download a complete OS-image, burn a SD-card, steps for operation, preconditions
- source - prepare a running Raspi-OS, apply a ram disk, add modules for camera, temperature sensor, create a launcher.sh, sundialcam Python scripts, etc.
Due to their size the OS image files are at another place (EarthLAT1200.org server):
- Image for Raspi Pi 4, shrinked & zipped (3.7 GB) - download P4BusterSdcam20020630shr.img.gz
- Image for Raspi Pi Zero, shrinked & zipped (will be released later).