ANPR (Automatic Number Plate Recognition) and LPR (License Plate Recognition) cameras read vehicle plates automatically and turn them into searchable data for access control, parking, tolling and security. This guide explains how they differ, which specifications actually matter, and how to choose the right SZGOING camera for your road, entrance or car park.
What is the difference between ANPR and LPR?
ANPR and LPR describe the same core technology: a camera captures a vehicle plate, OCR software reads the characters, and the system stores or matches the plate number. ANPR is the term more common in Europe and the UK, while LPR is widely used in North America. In practice, ANPR is often used for higher-speed road deployments and LPR for access control and parking applications. Either way, the buying criteria below are the same.
How an ANPR camera works
- Capture: the camera continuously captures frames of the lane or entrance.
- Detect: image processing locates the plate region in the frame.
- Read: OCR decodes the plate characters and format.
- Act: the result is matched against a database or whitelist to open a barrier, raise an alert or log an event.
- Store: plate, timestamp, and snapshot are recorded for reports and audits.
Dedicated ANPR cameras do the reading with front-end processing, so they respond fast even when the vehicle is moving at speed.
Key specifications to compare
| Specification | Why it matters | What to look for |
|---|---|---|
| Resolution | Determines how clearly plates are read at distance | SZGOING offers 3MP, 4MP and 5MP ANPR camera models |
| Reading speed | Higher speeds need faster capture and processing | Highway models read up to 150 km/h; access-control models up to 50 km/h |
| Scene and mounting | Lane width, mounting height and angle affect accuracy | Choose optics and mounting for the approach you are covering |
| Night performance | Plates must be readable 24/7 | IR illumination and low-light imaging are essential |
| Outputs and integration | Connect the camera to barriers, alarms or software | Check relay/alarm outputs and compatibility with your VMS or access system |
| Housing | Outdoor roads and car parks need weatherproofing | Rugged outdoor housings for exposed installations |
Which SZGOING camera fits your scenario?
- Highways and checkpoints: SZGOING 5MP ANPR Camera reads plates at up to 150 km/h for multi-lane road and security deployments.
- Toll roads and speed enforcement: SZGOING 3MP ANPR Camera delivers reliable reads at highway speeds on single-lane approaches.
- Entrances, parking and urban roads: SZGOING 4MP ANPR Camera is built for access control and car-park environments with lower approach speeds.
See the full range in our ANPR & LPR cameras category.
Buying checklist
- Define the scene: highway lane, toll booth, barrier entrance or car-park aisle? Speed and lane width drive the model choice.
- Pick resolution: start with 3MP for entry-level single lanes; choose 4MP or 5MP for higher accuracy needs and wider scenes.
- Confirm night readiness: verify IR illumination covers the full capture zone in darkness.
- Plan integration: check alarm outputs, software compatibility and how plate events are delivered to your team.
- Check the environment: outdoor units need weatherproof housings suitable for your climate.
- Think long term: factory-direct supply, consistent firmware support and spare units keep deployments manageable.
Frequently asked questions
What is the difference between ANPR and LPR?
They are the same technology with different regional names. Both capture a vehicle plate and run character recognition; ANPR is the common term in Europe and the UK, while LPR is widely used in North America.
How fast can ANPR cameras read plates?
It depends on the model and scene. SZGOING highway models read plates at up to 150 km/h, while access-control models are optimized for entrances and parking with speeds up to 50 km/h.
Can ANPR cameras work at night?
Yes. Dedicated ANPR cameras include IR illumination and low-light imaging so plates remain readable around the clock.
What are ANPR cameras used for?
Common uses are barrier and gate access control, parking management, toll roads, campus and industrial security, and vehicle intelligence for traffic systems.
Do you ship ANPR cameras internationally and provide support?
Yes. SZGOING is a factory-direct manufacturer and ships worldwide. Contact us with your scene details for a configuration recommendation and quotation.