Webcam Tips

Here's a rough (there must be a thing or two I've forgotten but I think I was pretty thorough) outline for how to get the web cam for Barrow setup.

Here's an easy script to pull images from an Axis Q6032-E pan-tilt-zoom web cam.

#!/bin/bash
## Pan Range:  -180 to +180
## Tilt Range: -20 to +200
## Zoom Range: 1 - 9999
wget --no-check-certificate -O /dev/null https://user:pass@axis-00408cb14f01.iarc.uaf.edu/axis-cgi/com/ptz.cgi?pan=-100&tilt=10&zoom=1 
sleep 5
wget --no-check-certificate -r -O /home/bob/working_files/barrow/webcam1/images/view1.jpg https://axis.iarc.uaf.edu/jpg/image.jpg
wget --no-check-certificate -O /dev/null https://axis.iarc.uaf.edu/axis-cgi/com/ptz.cgi?pan=-120&tilt=10&zoom=01 
sleep 5
wget --no-check-certificate -r -O /home/bob/working_files/barrow/webcam1/images/view2.jpg https://user:pass@axis-00408cb14f01.iarc.uaf.edu/jpg/image.jpg
wget --no-check-certificate -O /dev/null https://axis.iarc.uaf.edu/axis-cgi/com/ptz.cgi?pan=100&tilt=10&zoom=35 
sleep 5
wget --no-check-certificate -r -O /home/bob/working_files/barrow/webcam1/images/view3.jpg https://axis.iarc.uaf.edu/jpg/image.jpg

To view these images on the remote server you're running the script from, presuming imagemagick is installed:
First:

ssh -Y to the server

Second:

$ display view1.jpg

Here is one way to set up a DreamPlug to control this camera (also doubles as serial server):

1. Log in as root (nosoup4u)
2. passwd (change password)
3. mkdir /home/bob
4. adduser bob
5. chown bob:bob /home/bob
6. su bob
7. mkdir .ssh
8. cd .ssh
9. ssh-keygen -t rsa -b 2048
10. update /etc/apt/sources.list (backports.debian.org & comment out the internal ip line)
11. apt-get update
12. apt-get upgrade
13. cat id_rsa.pub # copy the key
14. ssh bob@datapro.iarc.uaf.edu
15. cd .ssh
16. paste key to /home/bob/.ssh/authorized_keys
17. Disable wireless adapter: http://www.spinifex.com.au/plugs/dphowtowifiap.html
18. Modify /etc/network/interfaces

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
auto  eth1
iface eth1 inet static
 address 192.168.1.1
 broadcast 192.168.1.255
 netmask 255.255.255.0
 network 192.168.1.0

1. apt-get install less
2. apt-get install nmap
3. apt-get install imagemagick
4. apt-get remove samba
5. apt-get remove alsa-utils
6. apt-get remove lighttpd
7. apt-get remove ftpd
8. SSH Port: 22
9. add user to sudoers:
   1. chmod 4755 /usr/bin/sudo
10. give general user crontab permissions:
    1. chmod 4755 /usr/bin/crontab
11. DHCP Server is: udhcpd (default... added dhcp3 & dnsmasq and it confused things)
    1. To give axis camera a static IP over DHCP:

static_lease 00:40:8c:b1:4f:01 192.168.1.3 (in /etc/udhcpd.conf)

1. to make the name known (dream2012.iarc.uaf.edu)

nano /etc/dhcp3/dhclient.conf
/send host-name "dream2012";

1. to map the removable SD card modify /etc/fstab

/dev/sdb1   /var/pictures/  ext2  rw,noatime  0 0

1. ser2net.conf config:

7808:raw:60:/dev/ttyUSB0:9600 8DATABITS NONE 1STOPBIT
7809:raw:60:/dev/ttyUSB1:9600 8DATABITS NONE 1STOPBIT

1. IP Tables setup (This may not quite be up to date):

dream2012:~# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ssh 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:7808 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:7809 

Cron

bob@dream2012:~/bin$ cat main_cron
#*     *    *      *     *  command to be executed
#-     -    -      -     -
#|     |     |     |     |
#|     |     |     |     +----- day of week (0 - 6) (Sunday=0)
#|     |     |     +------- month (1 - 12)
#|     |     +--------- day of month (1 - 31)
#|     +----------- hour (0 - 23)
#+------------- min (0 - 59)
4,34    *      *    *     * /usr/local/bin/xmitip.sh 
0,15,30,45 *   *    *     * /usr/local/bin/webcam1.sh

/usr/local/bin/xmitip.sh

#!/bin/bash
ifconfig > /home/bob/bin/brw_dp_ip.txt
scp -i /home/bob/.ssh/id_rsa /home/bob/bin/brw_dp_ip.txt bob@datapro.iarc.uaf.edu:/home/bob/working_files/barrow/dreamplug/ 

/usr/local/bin/webcam1.sh

bob@dream2012:~$ cat /usr/local/bin/webcam1.sh
#!/bin/bash
## Pan Range:  -180 to +180
## Tilt Range: -20 to +200
## Zoom Range: 1 - 9999
# date for filenames
datez=$(date +%Y_%j_%H%I%M)
# set some directory related things
rootdir="/var/pictures/webcam1/"
yearz=$(date +%Y)
mkdir "${rootdir}view1/${yearz}"
mkdir "${rootdir}view2/${yearz}"
mkdir "${rootdir}view3/${yearz}" 
picture1="${rootdir}/view1/${yearz}/${datez}-vw1.jpg"
wget --no-check-certificate -O /dev/null https://guruplug:PUlse23@192.168.1.3/axis-cgi/com/ptz.cgi?pan=-100&tilt=10&zoom=1 
sleep 5
wget --no-check-certificate -r -O $picture1 https://guruplug:PUlse23@192.168.1.3/jpg/image.jpg
picture2="${rootdir}/view2/${yearz}/${datez}-vw2.jpg"
wget --no-check-certificate -O /dev/null https://guruplug:PUlse23@192.168.1.3/axis-cgi/com/ptz.cgi?pan=-120&tilt=10&zoom=01 
sleep 5
wget --no-check-certificate -r -O $picture2 https://guruplug:PUlse23@192.168.1.3/jpg/image.jpg 
picture3="${rootdir}/view3/${yearz}/${datez}-vw3.jpg"
wget --no-check-certificate -O /dev/null https://guruplug:PUlse23@192.168.1.3/axis-cgi/com/ptz.cgi?pan=100&tilt=10&zoom=35 
sleep 5
wget --no-check-certificate -r -O $picture3 https://guruplug:PUlse23@192.168.1.3/jpg/image.jpg 
rsync -avz -e "ssh -i /home/bob/.ssh/id_rsa" /var/pictures/webcam1/view1/* bob@datapro.iarc.uaf.edu:/home/bob/working_files/barrow/webcam1/view1/ 
rsync -avz -e "ssh -i /home/bob/.ssh/id_rsa" /var/pictures/webcam1/view2/* bob@datapro.iarc.uaf.edu:/home/bob/working_files/barrow/webcam1/view2/ 
rsync -avz -e "ssh -i /home/bob/.ssh/id_rsa" /var/pictures/webcam1/view3/* bob@datapro.iarc.uaf.edu:/home/bob/working_files/barrow/webcam1/view3/ 

Other hand commands from this setup:

   service --status-all

Handy: //dpkg --get-selections | grep ftp// useful to see what extra stuff is installed. (e.g. mysql, ftpd, samba)