ANPG kameraer
Today, the price of a license plate camera (also known as ANPG) is such that everyone can afford it. The camera has all the built-in analysis you need to get started, and therefore you don't depend on anything other than the camera, an SD card, and power. The camera can of course easily be connected to a hard disk recorder.
When a car passes a defined point on the road, the license plate is read, and it is stored in a database. All registered license plates can subsequently be searched in.
An approved, blacklisted, or unknown license plate can also trigger its own reaction, such as a push notification, email with a picture, or opening of a gate.
Contact our technicians at 70701009 or write to support@ipcam-shop.dk - and we will ensure that you get off to a good start
Number plate scanner (ANPG)
What is a license plate camera?
A surveillance camera that can provide a clear image of a number plate on a vehicle, both day and night, and at high and low speed, is called a number plate camera. If you go a step further, so that you can not "just" see the number plate clearly in a picture, but actually have it digitally read and registered, in Denmark it is called an Automatic Number Plate Recognition camera, hence the name ANPG . In English it is called an Automatic Number Plate Registration camera, ANPR , or LPR which stands for License Plate Registration
What can license plate scanning be used for?
A camera that can read and react to number plates is typically used for tasks such as:
- Parking control and other parking solutions
- Registration of vehicles for identification
- Control of gates, gates, traffic lights etc.
- General traffic control
- Alarm for unwanted or unknown vehicles
A license plate scanner can actually be used for all kinds of identification and reactions to known and unknown vehicles.
Is reading license plates at night possible?
Yes! One of the characteristics of a good number plate reading camera is that they see the number plate as clearly at night as they do during the day. Regular cameras cannot see the registration number at night, but instead show a white square due to the reflection in the license plate. On a good ANPG camera, the reflex is not a problem, but the price you pay for being able to read the number plate at night is that you can only see the number plate and front or rear lights clearly. It is therefore a good idea to combine the ANPG camera with a regular camera, which can then see all the physical details on and around the target. If you notice the police license plate scanners, they also consist of 2 cameras. One for reading the license plate and one for the surroundings.
Can you install a license plate camera yourself?
Yes! Whether you are going to use it privately or for business, you can install the camera yourself and it is not as difficult as you might initially think. But if you'd rather spend your time on something else, we can also easily program it for you. Then you just have to screw it in, connect the cables and book "hire a technician" - easy right? We also recommend that you have a chat with us before choosing a location, as there are some guidelines from the manufacturer that we recommend that you follow.
Can a license plate camera be used without a recorder?
Yes, most people can easily! Then you just need, in addition to the camera, a power supply, e.g. a PoE switch and an SD card to store the number plates on. Most cameras also have built-in relays which are used to control a gate, a traffic light or other things. However, we always recommend a combination of SD card and a hard disk recorder (NVR)
How do I choose which cars my ANPG camera should approve?
On the camera or hard disk recorder, you insert the number plates on what is called a "white list". The number plates on that list are approved vehicles. What the camera should do when it recognizes a number plate is entirely up to you.
There is also a "Black list" designed for those vehicles that need a different response. This is typical for vehicles that are known but not on the "white list". Blacklisting is therefore typically used for suspicious vehicles or mother-in-law :D
The vehicles that do not appear on the two lists are called "unknown" vehicles. Unknown vehicles can then trigger a completely 3rd reaction.
What reactions can a license plate scan trigger?
When a license plate has been scanned and compared with the 2 lists, you can then trigger some reactions. It could be:
- Activate gate, locks, grid, sluice etc.
- Activate traffic lights, e.g. change from red to green
- Send push notification to mobile or tablet, with image of the vehicle and number plate enlarged.
- Send e-mail with a picture of the vehicle
- Sending a Wiegand signal to a conventional Access Control System (ADK)
- Activate a PTZ camera. (Read more about rotating and steerable cameras here)
and many many other things
What happens if the vehicle does not have a number plate fitted?
Yes, that is always the big question, what do you do? Basically the camera will not open the gate, but on most models the camera will still take a picture of the vehicle and put it in the archive. When you then pull the list of registered vehicles, the vehicle without a number plate will also appear, but without an associated number plate. This is done to ensure that you cannot slip by without being seen by removing your number plate.
Does a license plate scanner camera work in both directions?
Yes, an ANPG camera works in both directions of travel, but it must be able to see the registration number clearly, so it does not work from the side.
Can you choose which direction the camera should react to?
Most cameras support direction detection. This means that you can set the camera to only open the gate for approaching vehicles and not react to those leaving the area, or vice versa.
Can a license plate camera read a motorcycle's registration number?
Yes, but of course only in the direction away from the camera, as motorcycles only have plates on the back.
Is the registration number always read 100% correctly on ANPG cameras?
No, you cannot be sure of that, as snow, mud and other contamination of the plate give rise to incorrect readings. In some cases, it can also scan/read an I as a 1 and an O as a 0. The more the number plate takes up in the image, the greater the probability of a correct reading. Therefore, always make sure to choose a camera with sufficient optical zoom for the desired distance.
