10393 manual

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Important Notes

In the package

  • 10393 camera system
Fig.1 10393 interfaces
  • Power supply wall adapter (default: 18-75V, more information)
  • CAT6 network cable
  • μUSB-to-USB cable
  • Recovery μSD card

Power on

  • Plug in the power supply
  • Connect to LAN using the network cable

Notes

  • Boot time: ~30s
  • The default boot is from the on-board NAND flash. More information on available boot options and recovery boot.

Defaults

IP Address 192.168.0.9
User root
Password pass
  • The default IP address is set in the /etc/elphel393/init_elphel393.py.

Command line access

  • ssh from PC terminal:
$ ssh root@192.168.0.9

Serial console access

  • Use a microUSB-USB cable to connect console μUSB port (see Fig.1) to PC - the cable's end should be thin enough otherwise interferes with an inserted mmc (multi media card = μSD card).
  • In Linux the minicom program can be used
$ minicom -c on

Most likely the device will be /dev/ttyUSB0. Settings:

  • 115200 8N1, no for hardware/software flow control

Web user interface (camvc)

http://192.168.0.9/closeme.html (will be changed soon):

  • The page contains links to camvc user interface for each individual camera port.
  • camvc was ported from the 10353 camera series:
    • many parameters like image format ,resolution, auto exposure, auto white balance can be changed from camvc.
    • pause compressor and search within buffered images
    • help tips available - see Fig.2 - select then mouse over a control element of interest
Fig.2 camvc help
Fig.3 camvc controls

Download live images

camvc

  • For a currently opened port:
Fig.3 Acquire an image from the Camera Control Interface

browser

channel 1: http://192.168.0.9:2323/img
channel 2: http://192.168.0.9:2324/img
channel 3: http://192.168.0.9:2325/img
channel 4: http://192.168.0.9:2326/img

command line

wget http://192.168.0.9:2323/bimg -O filename.jpeg
wget http://192.168.0.9:2324/bimg -O filename.jpeg
wget http://192.168.0.9:2325/bimg -O filename.jpeg
wget http://192.168.0.9:2326/bimg -O filename.jpeg

Video

Display

Multipart JPEG stream

http://192.168.0.9:2323/mimg
http://192.168.0.9:2324/mimg
http://192.168.0.9:2325/mimg
http://192.168.0.9:2326/mimg

GStreamer

gst-launch-1.0 souphttpsrc is-live=true location=http://192.168.0.9:2323/mimg ! jpegdec ! xvimagesink

Record (to internal storage)

  • Recording to internal storage is performed by the camogm program
  • important: Event logger (GPS, IMU, IMG, EXT) recording is started/stopped separately. See instructions below.
  • For SATA devices camogm supports:
    • recording to a partition with a file system - up to 80MB/s
    • faster recording to a partition without a file system avoiding OS calls - up to 220MB/s
  • Can record to an mmc partiton as well.
  • More info
  • If the prefix parameter, which is absolute path + prefix, for a channel is not set the file will be written somewhere to rootfs

browser

Example 1: (provide a correct media mount point - /mnt/sda1/)

command line

Example:

  • channel 2, /home/root, file prefix=test_, 1GB or 10min files whichever occurs first
    • setup and start (in one line):
echo "format=mov;status=/var/tmp/camogm.status;prefix=/home/root/test_;duration=600;length=1073741824;start" > /var/volatile/camogm_cmd
    • stop recording:
echo "stop" > /var/volatile/camogm_cmd
sync

Record the Event Logger data (GPS, IMU, IMG & EXT)

  • Start:

http://192.168.0.9/logger_launcher.php?cmd=start&file=/mnt/sda1/test.log&index=1&n=10000000

  • Stop:

http://192.168.0.9/logger_launcher.php?cmd=stop

Change parameters

  • http://192.168.0.9/autocampars.php - read & write parameters (through parsedit.php), save configuration (if booted from NAND flash - "shutdown -r now" will sync changes or copy /etc/elphel393/*.xml to /tmp/rootfs.ro/etc/elphel393/ (lower layer of overlayfs), if booted from mmc - no need to reboot, just sync)
  • parsedit.php

The response is in XML form:

Read: 

http://192.168.0.9/parsedit.php?immediate&sensor_port=0&PAR1&PAR2

Change: 

http://192.168.0.9/parsedit.php?immediate&sensor_port=0&PAR1=VAL1&PAR2=VAL2

Note 1: It's just if the parameter value is specified it will be applied. The call can have mixed specified and unspecified parameters.

Note 2: The new value is read on the next call.

Notes

  • parsedit.php and autocampars.php were ported from 353 camera series. There are a few changes from the originals related to 4x sensor ports:
    • parameters are individual for each sensor port - writing parameters to multiple port at once is controlled with a (bit-)mask input box
    • if opened w/o sensor_port specified the page will show links to available ports
    • sensor_port=x, where x=0..3 - in the address string - for a single sensor camera it is normally 0

Temperature monitor

10393 hwmon.jpeg

Proper shutdown

  • if not properly shutdown - μSD might get corrupted (run sync at least)
shutdown -hP now

Firmware image

  • 20160804 (new)
    • root/pass
    • overlayfs enabled if rootfs is on flash - lower: /tmp/rootfs.ro, upper: /tmp/rootfs.rw - changes to the filesystem are made on:
reboot -f

or 

shutdown -hP now

or (most likely will work but correct work is not guaranteed) 

overlay_sync

Known problems

  • [solved] Vertical artifacts in jpegs. Images are ok at 100% quality. Fixed, testing.
  • http://192.168.0.9:232x/noexif/mimg - multipart jpeg displays corrupted frames from time to time. Reason: network bandwidth?
  • [solved] Sometimes on power-on (NAND flash boot) cannot mount the card's rootfs partition. Kernel Panics. Power off/on. Soft "reboot -f" works ok.
...
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2)
...

More info

  • Changing exposure/quality/gains - can corrupt images - needs testing.
  • After rewriting rootfs to μSD card - some of the cards get a corrupted partition - re-partitioning (reformatting?) solves the problem.
On the camera the rootfs is mounted as RW and some of the files are changed (also links created) -
most of the changes are now moved to tmpfs but something might have been missed.


Notes

  • In case rootfs is on flash, it might make sense (or maybe not as the history is updated only once on session exit) to disable bash sessions command history - disable bash history
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