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Vehicle Detector

IP.com Disclosure Number: IPCOM000004501D
Publication Date: 2000-Dec-15
Document File: 2 page(s) / 32K

Publishing Venue

The IP.com Prior Art Database

Abstract

Hotels, apartment buildings and other businesses often offer doorman or concierge services. Monitoring taxis and other vehicles at the entrance is critical to providing quality service. This has been traditionally accomplished by having a person man the door or using a camera and monitor system. A simple and inexpensive system would be comparable and allow high quality service.

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Vehicle Detector

Hotels, apartment buildings and other businesses often offer doorman or concierge services. Monitoring taxis and other vehicles at the entrance is critical to providing quality service. This has been traditionally accomplished by having a person man the door or using a camera and monitor system. A simple and inexpensive system would be comparable and allow high quality service.

How to remotely monitor an entrance for vehicles without using cameras?

Traditional vehicle monitoring at a building entrance has bee done with a person or camera monitor system. This is very expensive and sometimes unnecessary. What is needed is a way to remotely monitor an entrance for vehicles without using cameras.

The present invention is a method and apparatus incorporating existing inductor coil vehicle detection technology for the monitoring of vehicles at a building entrance. An inductive loop is simply a coil of wire embedded in the road's surface. To install the loop one lays the asphalt and then comes back and cuts a groove in the asphalt with a saw. The wire is laid in the groove and sealed with a rubbery compound. Inductive loops work by detecting a change of inductance. Therefore, when a large metal object, like a vehicle, passes over the coil a change in inductance is detected.

Figure 1a Side view vehicle detector

Figure 1b Top view of vehicle detector

Figure 1a and Figure 1b illustrate an inductor coil 110 embedded in a parking place 120. As a car 130 comes to rest in front of the entrance, it passes over inductor coil 110, thus causing a change in the inductance. This inductance change is detected by electronics 140, which are electrically connected to indicator light 150, and thus illuminates indicator light 150 signaling personnel.