US Patent 10970987 System and method for identifying vaping and bullying

A sensor system for identifying vaping, other smoking activities, and bullying at a site includes an air quality sensor configured to detect air quality, a sound detector configured to detect sounds, and a network interface configured to transmit a signal indicating abnormality matching signature of vaping, other smoking activity, or sound of bullying. Vaping or another smoking activity is identified based on the detected air quality, and bullying is identified based on the detected sound.