StreetSurveillance

TableOfContents

Entrance and exit of streets
* Place InfraRedLeds at entrance of street. * Two CctvCameras on either sides of the road trained on each other with ZoneMinder] motion detection. * Any entrance to the street will trigger an infrared beam and the [[ZoneMinder box.

Moving and stationary vehicles
Criminals drive down a street then suddenly stop their car and have 6 crookes jump out. By determining the speed of a vehicle this type of insurgency is detected. We need some foolproof way of measuring the instantanious speed of a vehicle, so as to ignore vehicles driving above a certain speed and thus eliminate 95% of all motion events. Doppler radar, laser detection are measures vehicle speed. But how to automate it is another question.

Discriminating between a human and vehicle
Electromagnetics wil determine if a vehicle broke the InfraRedLeds beam, but is not feasable due to the distance limitation on detecting metal. The ZoneMinder has a functionality to determine the size of an object on a motion event. See the ZoneMinder wiki.

Seperate the infrared beams by the approximate length of a vehicle. If both beams are broken at the same time it is a car. Place two MeshNetworking parabolics in between these to infrared beam stacks. 2.4ghz can't transmit through metal. If the Wi-fi signal is interrupted and both the beams means it can only be a vehicle entering the street.