surveillance

iSpy uses your USB webcams, IP cams, capture cards, desktops and microphones to detect and record movement or sound and provides security, surveillance, monitoring and alerting services. Media is recorded directly to H264 mp4 files or AVI files.

motionEyeOS is a Linux distribution that turns a single-board computer into a video surveillance system. The OS is based on BuildRoot and uses motion as a backend and motionEye for the frontend.

The OpenSky Network is a non-profit ADS-B exchange for sharing real time aircraft data broadcast over the airwaves. The network consists of thousands of sensors connected to the Internet by volunteers which collect ADS-B and Mode S broadcast data.