Access to an AXIOM Beta test camera inside a controlled dark-box can be performed 24/7.
The set-up is configured as follows:
The Zbox is a small PC at the AXIOM office that can be accessed remotely by developers and GSoC students to work on AXIOM Beta hardware at the office. There are a few peripheral devices as well.
Username: <user name>@apertus.org
Access is granted via SSH key only.
The Anel NET-PwrCtrl Power Switch provides power sockets which can be controlled remotely through a web interface. This allows turning on/off the AXIOM Betas in case they hang due to a software error, etc. or to control lights that illuminate the test chart the AXIOM Beta is filming.
Note: Please switch any lighting off after you are done.
Tunnel the following ports through SSH:
Local 9051 to netctrl1:80
Local 9052 to netctrl2:80
Once the SSH Tunnel has been established you can go to localhost:9051 and localhost:9052 in your browser and should be able to access the ANEL WebGUI.
Socket 1: AXIOM Beta (with image sensor)
Socket 2: Zbox
Socket 3: Spot Lamp
Socket 2: Flourescent Tube Light
Socket 3: DMX LED Strip Controller
Credentials are not listed here but can be provided on request.
SSH: ssh root@beta
Copy files from camera to ZBOX: scp <user@host>:<remote path> <local path> -> scp root@beta:/opt/test_snap.jpg ./
There is a small webcam installed that films the inside of the dark box remote setup. This webcam is connected to the ZBox and with the Linux software “motion” streams live snapshots to the ZBox localhost:8081. If you want to view the webcam you need to create an SSH tunnel.
The ZBox has a 5-channel DMX controller with white LED strips attached, running at 30KHz PWM.
Each channel can be set from 8 (lowest visible value) to 255 (maximum brightness). Values lower than 8 will turn off the LEDs.
Make sure the olad service is running:
service olad start
Lowest dim level:
Lowest dim level is 8.
ola_set_dmx -u 0 -d 8,8,8,8,8
ola_set_dmx -u 0 -d 255,255,255,255,255
ola_set_dmx -u 0 -d 0,0,0,0,0
Channels are represented by each dim level setting number after
ola_set_dmx -u 0 -d
ola_dev_info ... Device 10: DMXking.com - ultraDMX Micro, Serial #: 84003036, firmware 1.44 port 0, IN, priority 100 port 0, OUT, patched to universe 0
If the output port is not "patched" (whatever that means), run:
ola_patch --patch --device 10 --port 0 --universe 0
in the directiory:
there is a script:
that reports the temperature in the remote dark box at the top and at the bottom of the box (there is 24/7 air ventilation in the box):
usb-0000:00:14.0-3 28.12 °C usb-0000:00:14.0-5.4.2 27.75 °C
The "capture" PC receives the HDMI signal from the AXIOM Beta through a black magic decklink 4k mini recorder PCIe card.
The following commandline tools are available:
By connecting to the capture PC by using -X or -Y parameter for SSH, it's possible to see the live video stream by using following command:
gst-launch-1.0 decklinkvideosrc mode=10 connection=hdmi video-format=4 ! autovideoconvert ! xvimagesink