License plate styles and aliases

License plate styles and aliases help you standardize and simplify how the system understands and interprets license plate data.

License plate styles define how plate numbers are displayed or grouped based on region, format, or use case. Applying consistent license plate styles helps improve the readability, search accuracy, and system consistency, especially when you work across different regions or formats.
Aliases enable you to assign a readable name to a license plate. Instead of tracking a number like ABC123, you can label it as Maintenance Van or Visitor – Jane Doe, making it easier to understand and manage entries.

These tools make it easier for you to search, identify, and respond to relevant vehicles in the system.

License plate styles

Un style de plaque d’immatriculation est un ensemble de caractéristiques de plaque d’immatriculation. Celles-ci incluent :

La taille et la forme de la plaque
Le format et la police du texte
Les couleurs
Le type de véhicule sur lequel figure la plaque d’immatriculation

Voir une liste de tous les styles de plaque d’immatriculation pris en charge par XProtect LPR.

You can group license plate styles into aliases. See Aliases.

Aliases

A license plate style alias (alias) is a group of license plate styles. You can group license plate styles into an alias by creating the alias and assigning the alias to the license plate styles of your choice.

You don't need to use aliases, but they could be useful for a number of reasons:

Aliases help you categorize license plate styles according to your license plate recognition needs. See Example scenario.
License plate styles have long and complex names that might be difficult to work with. Using aliases, you can give license plate styles a more descriptive group name.
You can add aliases to match lists. See Add match list items.
The XProtect Smart Client operator can add aliases to match lists.

Find license plate styles used in your system

Chaque module de pays contient des styles de plaque d’immatriculation. Lorsque vous activez un module de pays, les styles de plaque d’immatriculation appartenant à ce module de pays sont également activés.

To see a list of all license plate styles enabled in your system:

Select Site Navigation > Servers > License plate style aliases > Assign aliases.
In the License plate style column, see a list of all license plate styles enabled in your system.

Les listes de correspondances prennent en charge les numéros d’enregistrement, les alias et les propriétés des véhicules, mais pas les styles distincts de plaque d’immatriculation. Si vous souhaitez inclure un style spécifique de plaque d’immatriculation dans une liste de correspondances, commencez par créer un alias associé. Ajoutez ensuite cet alias à la liste en question. Voir Group license plate styles into aliases. See Add match list items.

Add, edit, delete aliases

Select Site Navigation > Servers > License plate style aliases > Configure aliases.
Select:
- Add to create an alias and specify an alias name
- Edit to rename an alias
- Delete to remove an alias

Group license plate styles into aliases

To group multiple license plate styles into an alias, you need to assign an alias to the license plate styles.

Select Site Navigation > Servers > License plate style aliases > Assign aliases.
For each license plate style that you want to assign an alias to:
1. Select the dropdown in the Alias column.
2. Select the alias of your choice.

Example scenario

In this example, let's create aliases and assign them to license plate styles in the Denmark country module.

To follow along, open the Management Client and enable the Denmark country module.

For our license plate recognition needs, we decide to categorize license plate styles in the Denmark country module into the following groups:

Commercial
Motorcycle
Private
Standard

With the Denmark country module already enabled, let's first create the aliases, and then assign them to license plate styles.

Create aliases

Select Site Navigation > Servers > License plate style aliases > Configure aliases.
Select Add to create an alias.

Let's create the four aliases:
- DK_COMMERCIAL
- DK_MOTORCYCLE
- DK_PRIVATE
- DK_STANDARD

Next, let's group license plate styles into aliases by assigning the new aliases to the license plate styles.

Assign the aliases to license plate styles

Select Site Navigation > Servers > License plate style aliases > Assign aliases.
For each license plate style that you want to assign an alias to, select the dropdown in the Alias column and select the alias of your choice.

We assign aliases to license plate styles in the Denmark country module as follows:

License plate style	Alias
DK_commercial_since_1976 DK_commercial_since_2008 DK_commercial_since_2009 DK_commercial_since_2009_twoline	DK_COMMERCIAL
DK_motorcycle_since_1976	DK_MOTORCYCLE
DK_private_transport_since_2009 DK_private_transport_since_2009_euroband DK_private_transport_since_2009_twoline DK_private_transport_since_2009_twoline_euroband	DK_PRIVATE
DK_standard_since_1976 DK_standard_since_2009 DK_standard_since_2009_euroband DK_standard_since_2009_twoline DK_standard_since_2012_holograph	DK_STANDARD

Note that we assigned the DK_MOTORCYCLE alias to only one license plate style. We did that because we want to use this specific license plate style on a match list, and match lists support aliases but not individual license plate styles.

In this example, we created aliases and assigned them to license plate styles. A possible next step is to add the aliases to match lists. That way, we can associate different groups of license plate styles with different LPR events. For example, we can open a gate to a vehicle only if the license plate style of the vehicle is part of the DK_COMMERCIAL alias. See Match lists.