For installing video surveillance system we will use software called “motion”
For making survellance system i have used my old usb Logitech web cam. when i plugged in the cam it detected automatically.
for installation of software use following command
sudo apt-get install motion
it will install motion software
motion configuration file /etc/motion/motion.conf
you can start motion software using command
if you are running motion in background you can use following command to stop
service motion stop
Camera will start when motion software is started and it will capture if there is any movement in front of camera.
pic and videos will be stored by default in following directory ( you can change path in config file)
take care of deleting old files otherwise it will full the memory