Senstarpedia

Articles that Enrich and Expand on Physical Security Technologies

Automated License Plate Readers (ALPRs)

License plate recognition (LPR) is an automated process that takes a picture of a license plate and scans it to identify the vehicle. Automated License Plate Readers (ALPR) are high-speed, computer-controlled camera systems that typically use optical character recognition technology to read plates at rates far higher than human operators or cameras. ALPRs are used in policing, industry, personal security applications, and for toll collection on highways.

Types of ALPR Cameras

ALPRs are sensor-based video analytics that automatically capture all license plate numbers that come into view, along with the location, date, and time. They can be Stationary ALPR cameras or Mobile ALPR cameras.

ALPRs and Data Collection

Automated License Plate Readers (ALPRs) scan license plates on vehicles. The data is then uploaded to a central server where it can be accessed by law enforcement personnel or other authorized users who hold the appropriate login credentials. ALPR systems capture additional information, including the location of vehicles at specific times and dates.

ALPR Common Use Cases

  • Parking management
  • Toll collection
  • Access control
  • Traffic control
  • Threat detection
  • Traffic enforcement

ALPR and Privacy

ALPR systems provide an opportunity for law enforcement to prevent and identify crime and have found widespread acceptance among police forces. Yet, many jurisdictions are beginning legislation that would restrict or limit the use of ALPRs due to privacy concerns.

Posted in: Video Analytics Info