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| A custom developed automatic license plate reading system was designed around Arecont Vision’s IP cameras |
Megapixel solution
To improve entry and exit from the Rungis centre, Sogaris implemented a parking facility management system that included both a ticket-based parking facility management system for visitors and a ticket-free private parking facility system for clients. Two entry and exit lanes for the ticket-based parking facility were added and the two existing entry and exit lanes were designated for exclusive use for the ticket-free private parking.
To meet the stated requirements of improving access speed, convenience and security, both parking management systems utilize a custom-developed automatic license plate reading (ALPR) system designed around Arecont Vision 1.3 Megapixel AV1300DN MegaVideo® DayNight™ cameras. The high resolution megapixel cameras, using fixed aperture lenses and automatic iris control, provide clear and detailed images, even in low light or extreme backlight conditions. The camera’s onboard “region of interest” and “image cropping” features allow precise accuracy and higher resolution in capturing images of the license plates. For the private parking region, the Arecont Vision megapixel cameras are installed in terminals which are positioned a few meters in front of and behind the entry/exit barrier. As the trucks pull into or out of the terminal, the system reads and registers the trucks’ front plates. Rear plates are also read to avoid vehicles entering in a procession or piggy-backing on the front vehicle. The front terminal is equipped with two cameras for double reading. On exiting, a data consistency check is performed. If a truck which entered without a trailer attempts to leave with a trailer attached and without validation, its exit is blocked and an operator is called. The camera set-up is the same for the public parking system and provides an additional level of security for visitors to the Rungis centre as well as helping to eliminate the problem of unauthorized overnight parking.
Megapixel benefits
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| Arecont Vision cameras were selected for their reliability and compatibility with the automated parking management system |
Arecont Vision megapixel cameras were selected by the integrator because of their high quality resolution and reliable performance, as well as compatibility with the automated parking management system. The cameras provide improved S/N (signal to noise) ratio, wider dynamic range and progressive scanning to more effectively handle the varying lighting conditions. Many camera functions, such as image cropping and motion detection, are integrated into the chip, making it the ideal choice for implementation in a parking management system.
“The automatic response of the Arecont Vision megapixel cameras is extremely intelligent,” said Mr. Selon M. Detolle of Altaïr, one of the designers of the system. “The technology compensates for the glare of the headlights rather than averaging out the image, which can make the number plate darker. What’s more, there is no halo effect hampering the reading of the plate number.”
In addition to the high quality resolution, the Arecont Vision AV 1300DN cameras are ideal for the application because they feature MJPEG compression, which is very robust and works well in applications where the recording can be set to a lower frame rate. For easier and more flexible installation, the cameras are designed with PoE (Power over Ethernet) capability.
