What is ALPR?

ALPR stands for “Automatic License Plate Recognition.”


 So, what exactly is ALPR? ALPR is a technology that uses optical character recognition to automatically read and capture the license plate number of vehicles. ALPR systems typically consist of cameras that are strategically placed to capture images of vehicles as they pass by, specialized software that processes the images to extract the license plate information, and a database that stores the captured data for later use. For more information, the DHS has an ALPR fact sheet.

ALPR systems are commonly used in various applications, including:

  • Law Enforcement: Police departments use ALPR technology to quickly scan and identify vehicles of interest, such as stolen vehicles, vehicles associated with criminal activity, or those with expired registration.
  • Toll Collection: ALPR is used on toll roads and bridges to automatically identify and bill vehicles passing through toll booths without the need for physical toll booths or toll collectors.
  • Traffic Monitoring: ALPR systems can help monitor traffic flow and congestion by collecting data on vehicle movements, speeds, and travel patterns.

  • Border Control and Security: ALPR can be used at border crossings and security checkpoints to track and identify vehicles entering or exiting certain areas.

  • Vehicle Tracking: Some businesses use ALPR technology to track the movement of their own vehicles for logistical and security purposes.

  • Parking Management: ALPR systems can be used in parking lots and garages to automate access control, monitor parking duration, and issue parking citations if necessary.

mobile ALPR


What are other names for ALPR?

Automatic License Plate Recognition (ALPR) technology is known by various names in different countries and regions. Here are some of the alternative terms used for ALPR around the world:

  1. Automatic Number Plate Recognition (ANPR): This is the term used in many countries, including the United Kingdom and some European nations. “Number plate” is a common term for license plates in these regions.

  2. Automatic Vehicle Identification (AVI): This term is sometimes used to describe ALPR systems, especially in the context of toll collection and access control at secure facilities.

  3. License Plate Recognition (LPR): In some places, particularly in North America, the technology is referred to as License Plate Recognition.

  4. Car Plate Recognition (CPR): This term is used in some Asian countries, such as China.

  5. Vehicle Registration Plate Recognition (VRPR): In certain regions, especially in South Asia, this term is used to describe the same technology.

  6. Number Plate Recognition (NPR): Similar to ANPR, this term is used in some countries that use “number plate” instead of “license plate.”

  7. Automatic Plate Number Recognition (APNR): This term is used in some countries to emphasize the automatic nature of the technology.

  8. Automatic Number Plate Reader (ANPR): This variation is commonly used to describe the devices themselves, especially in the context of law enforcement.

  9. Car Registration Plate Recognition (CRPR): Some regions use this term, emphasizing the registration aspect of the technology.

The specific terminology used can vary from one country or region to another based on linguistic and cultural preferences. However, the underlying technology and its functionality remain largely the same, regardless of the terminology used.


What is ANPR?

ANPR stands for “Automatic Number Plate Recognition.” It is a technology that uses optical character recognition (OCR) to automatically read and capture the license plate numbers of vehicles.

To be honest, we’re not entirely sure why the UK call it a number plate when it has many letters in the plates!

At EnforcePlus we utilize AI to give in app Mobile ALPR to help easily identify license plates directly from the camera of the phone without the need to take a photograph.