Nedap ANPR - ANPR Installation Procedures; Safety Precautions for Installation; ANPR Mounting Guidelines

ANPR
© Nedap AVI, P.O. Box 103, NL-7140 AC GROENLO Page 5 of 27
3 INSTALLATION
3.1 SAFETY PRECAUTIONS
The following safety precautions must be observed during normal use, service and repair.
• The ANPR shall be connected to safety ground.
• Disconnect the power supply before removing any parts.
• The ANPR shall only be installed and serviced by qualified and trained personnel.
• To be sure of safety, do not modify or add anything other then mentioned in this manual or indicated by
NEDAP N.V.
• CAUTION: for continued protection against risk of fire, replace fuses only with the same type and rating.
• The ANPR can be powered from a low power, Class 2 power supply, in compliance with local regulations.
• The ANPR is equipped with an 850nm Infrared illuminator. The human eye will not or slightly see this light
coming from the illuminator. Do not look into the ANPR lens directly from close range or for more than 100
seconds. Eyes can be damaged by not taking these precautions. During normal use of the ANPR at a vehicle
gate, reading plates, there is no risk to the public.
3.2 MOUNTING
The ANPR is intended for vehicle access control. Vehicles are identified by the number plate when approaching
the gate. Because the number plate recognition is very fast, a full stop is normally not necessary. The ANPR
covers a reading distance of 3 to 6 meters. The field of view is typically one lane wide. There are 2 recommended
positions for the ANPR.
Pole mounting
The ANPR is positioned directly behind or in front of the actual barrier onto a pole. In that case the ANPR can be
best positioned on a pole at maximum 2m20 height. In this position the number plate of the vehicle directly in
front of the barrier cannot be read anymore. So these vehicles need to be recognized in flow. Mounting the
ANPR at 2m20 height is here the best option. When overhead installation is an option, the ANPR can at best be
installed in the center of the lane, above the lane. Horizontal angle will be 0° in that case, which is good.
Figure 1: Pole mounting