METODO Y APARATO PARA DETECTAR CONTINUAMENTE LA PRESENCIA DE VEHICULOS CON UN SENSOR OPTICO Y UN SENSOR MAGNETICO.

摘要

In the present invention there is described a method and apparatus for the continuous, non-intermittent, detection of vehicles based on detecting the sharp change in illumination caused on the flooring under a vehicle when this arrives or departs, and on the use of said detection to activate a magnetic sensor the sensitivity of which is adjusted to detect only those magnetic disturbances sufficiently large to be able to be attributed to a vehicle which is over the sensor. Both the light sensor and the magnetic sensor are connected directly to a digital controller without the need of active electronic components or their own or a shared power supply source. The detector may be fixed or portable, wireless or connected by cables, and may operate independently or as part of a sensor network.