ALPR

Flock cameras automatically capture the license plates, colors, vehicle types, and other characteristics of passing vehicles, and upload the data to a cloud database for retrieval by police and law enforcement agencies.

At the federal level, the United States lacks uniform ALPR legislation, with only a small number of states such as Maine and New Hampshire having made explicit provisions on data retention periods.

Flock Safety's core product is an ALPR camera network covering city streets that automatically captures, records, and analyzes the license plate information of passing vehicles.

Automated License Plate Recognition (ALPR) systems automatically capture the license plates of passing vehicles via high-resolution cameras and store information such as plate numbers, timestamps, and geographic locations in a database.

Flock Safety's core product is an automatic license plate recognition (ALPR) camera that automatically photographs the license plates of passing vehicles and uploads the data to a cloud database.

ALPR technology combines Optical Character Recognition (OCR) with infrared imaging to read license plate information under various lighting and weather conditions

As of 2024, an estimated over 1 billion license plate scan records are stored in various databases

Automated License Plate Recognition (ALPR) technology originated in the 1990s and was first deployed on a large scale by British police to track vehicles related to the Irish Republican Army.

The core of ALPR technology consists of optical character recognition (OCR), infrared imaging, and machine learning algorithms.

Automatic license plate recognition technology was first developed by British police in the 1970s, initially used for vehicle tracking during the Northern Ireland conflict

Modern ALPR systems achieve accuracy rates exceeding 95%, with each camera capable of processing dozens of vehicles per minute

Local ALPR accounts being used for ICE-related queries may simultaneously touch three layers of constraints: state privacy law, local policy and Flock's terms of service.

Flock Safety is one of the major vendors in the ALPR field, and its system features solar-powered wireless cameras and a cloud data platform, with customers including numerous local law enforcement agencies.

ALPR data is regarded as highly sensitive personal information, and its collection, storage and sharing are strictly constrained by privacy regulations and internal policies.

In most jurisdictions, law enforcement agencies usually need to apply for a search warrant or meet a higher legal standard to obtain mobile phone location data, whereas ALPR data can often be retrieved simply through a platform query interface, and different agencies can sign data-sharing agreements with each other.

Flock's core product is solar-powered cameras with automatic license plate recognition (ALPR) capabilities, mainly deployed at community entrances, road intersections and commercial district parking lots.

A single ALPR record has limited value, but when a vehicle repeatedly appears in an area covered by hundreds of cameras, the system can reconstruct high-frequency travel routes, frequent locations and entry and exit times.

The core technologies of license plate recognition systems include night-vision cameras, license plate recognition algorithms, and timestamp recording.

Commercial ALPR systems typically achieve accuracy rates above 95%, while individual replicas have significantly higher misidentification rates due to hardware quality, lighting conditions, and algorithm tuning.

The ALPR technology workflow consists of three steps: a camera captures vehicle images, image preprocessing locates the license plate region, and an OCR engine parses the license plate characters and cross-references them against a database.