| 摘要 |
<p>The present invention describes a method and an apparatus for the continuous, non-intermittent, detection of vehicles, which is based on the detection of the sudden change in illumination produced on the ground underneath the vehicle when the latter arrives or departs and in the use of said detection for activating a magnetic sensor, the sensitivity of which is adjusted to detect only those magnetic anomalies that are sufficiently great to be able to be attributed to a vehicle that is over the sensor. Not only the illumination sensor but also the magnetic sensor are connected directly to a digital controller without the need for active electronic components of a dedicated or shared power supply source. The detector may be stationary or portable, wireless or connected by means of cables, and may operate independently or as part of a network of sensors.</p> |
