Turning a £7 worth webcam into a simple home surveilance system.
Install Zoneminder
We’ll be using a 32bit Debian Wheezy VM:
$ uname -rv
3.2.0-4-686-pae #1 SMP Debian 3.2.51-1
Update the system and install
Zoneminder:
# apt-get update && apt-get upgrade -uV
# apt-get install zoneminder
Install Apache web server:
# apt-get install apache2
Add Apache User to the Video Group
This is needed for the webserver to be able to access the webcam:
# ls -l /dev/video0
crw-rw---T 1 root video 81, 0 Dec 19 20:36 /dev/video0
Add user to supplementary group:
# usermod -aG video www-data
Link Apache to Zoneminder
Open:
# vim /etc/zm/apache.conf
Check the file to look as below:
Alias /zm /usr/share/zoneminder
ScriptAlias /cgi-bin /usr/share/zoneminder/cgi-bin
<Directory /usr/share/zoneminder>
php_flag register_globals off
Options FollowSymLinks
<IfModule mod_dir.c>
DirectoryIndex index.php
</IfModule>
</Directory>
Link Apache file:
# ln -s /etc/zm/apache.conf /etc/apache2/conf.d/zoneminder.conf
Optional: Install Cambozola Java Plugin
Cambozola is a Java plugin that decodes multipart JPEG streams.
Mozilla-based browser have native support.
This plugin is for browsers like Internet Explorer that lack that
support.
# cd /usr/src
# wget http://www.andywilcock.com/code/cambozola/cambozola-latest.tar.gz
# tar xzvf cambozola-latest.tar.gz
# cp ./cambozola-0.935/dist/cambozola.jar /usr/share/zoneminder
Find Out Logitech QuickCam Pro 5000 Capabilities
Find the device number:
# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 046d:08c5 Logitech, Inc. QuickCam Pro 5000
Get vendor and product codes (may also be seen from the output above):
# lsusb -s 004 -v | grep id
idVendor 0x046d Logitech, Inc.
idProduct 0x08c5 QuickCam Pro 5000
Get formats and resolution supported:
# zmu -d /dev/video0 -vqV2
Video Device: /dev/video0
General Capabilities
Driver: uvcvideo
Card: UVC Camera (046d:08c5)
Bus: usb-0000:00:1d.7-3
Version: 3.2.51
Type: 0x4000001
Supports video capture (X)
Does not support video output
Does not support frame buffer overlay
Does not support VBI capture
Does not support VBI output
Does not support sliced VBI capture
Does not support sliced VBI output
Does not support video output overlay
Does not have tuner
Does not have audio in and/or out
Does not have radio
Does not support read/write i/o (X)
Does not support async i/o
Supports streaming i/o (X)
Standards:
Formats:
MJPEG (MJPG)
YUV 4:2:2 (YUYV) (YUYV)
Crop Capabilities
Bounds: 640 x 480
Default: 640 x 480
Inputs: 1
Input 0
Name: Camera 1
Type: Camera
Audioset: 00000000
Standards: 0x0
Power on (X)
Signal detected (X)
Colour Signal detected
Horizontal Lock detected
Set Shared Memory Configuration
We’ve only got 1 GB or RAM installed on our machine:
# cat /proc/meminfo | grep -i memtotal
MemTotal: 1022744 kB
Therefore we’ll set the SHMMAX to not exceed a half or our physical
memory, 512MB. SHMMAX is the maximum size of a single shared memory
segment set in bytes. To change the value on a running system:
# echo 536870912 > /proc/sys/kernel/shmmax
To make a change permanent:
# echo "kernel.shmmax = 536870912" >> /etc/sysctl.conf
SHMALL is not causing any problems, therefore won’t be changed:
# cat /proc/sys/kernel/shmall
2097152
Restart Daemons
# service apache2 restart
# service zoneminder restart
Add WebCam to Zoneminder WebUI
Navigate a web browser to
http://localhost/zm.
Click “Add New Monitor”. Settings for Logitech QuickCam Pro 5000 are
shown below.
Optional
Under
“System” tab, tick the box for
“Authenticate user logins to ZoneMinder” to enable creation of user
accounts with varying sets of permissions.
Under “Images”
tab, check “Is the
(optional) cambozola java streaming client installed” if chose to
install earlier. Path to cambozola java streaming client should
be “cambozola.jar”.
Under
“Images” tab, add
/usr/bin/ffmpeg
to “Path to (optional) ffmpeg mpeg encoder (?)”.
Troubleshooting
# tail /var/log/messages
# tail /var/log/syslog
Also check Log section on Zoneminder WebUI.
Some Fixes
Dicas:
- Para passar o ZoneMinder quase todo para português (br):
OPTIONS > SYSTEM > LANG_DEFAULT (passar para pt_br).
- O ZoneMider possui muitas configurações. Explore em “Opções”.
- Utilize uma partição separada ou outro disco para gravar os vídeos, para evitar problemas de superlotação na partição raiz. Siga a dica mais abaixo.
- Quando se em várias câmeras compartilhadas em uma placa, pode-se enfrentar:
- Imagem de uma câmera aparecendo em outra
- Câmera sem imagem
- Imagens misturadas
As soluções para estes problemas variam. Você pode tentar cada uma das opções abaixo. lembre-se de reiniciar o zoneminder após cada mudança.
Desmarque V4L_MULTI_BUFFER (em Opções >> config)
Mude CAPTURES_PER_FRAME para um valor como 2 ou 4 (Opções >> config)
Use Video For Linux version 1 para cada câmera (found in Origem >> Origem >> Capture Method)
I’ve noticed that syslog is being spammed with the following:
ERR [Shared data size conflict in shared_data for monitor L5000, expected 328, got 316]
Easy fix is available
here. Open
/usr/share/perl5/ZoneMinder/Memory.pm
and change the following:
#our $arch = int(3.2*length(~0));
our $arch = 32;
Another one:
ERR [Can't make events/1: Permission denied]
And the fix:
# chown -R www-data:www-data /var/cache/zoneminder/events
# chown -R www-data:www-data /var/cache/zoneminder/images
Link: https://www.lisenet.com/2013/zoneminder-installation-on-debian-wheezy-with-logitech-quickcam-pro-5000/
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