ANPR Setup Guide
Camera placement, software configuration, barrier integration and GDPR essentials.
Setting up an ANPR (Automatic Number Plate Recognition) system requires careful planning of camera placement, lighting, lens selection and software configuration to achieve reliable plate reads. This guide covers the complete setup process: choosing the right ANPR camera, calculating mounting height and angle, configuring OCR software, integrating with barriers and gates, managing whitelists and blacklists, and ensuring GDPR compliance with signage, retention policies and data access procedures.
Key features
- Camera Selection Guide. Dedicated ANPR cameras vs standard cameras with ANPR software. Pros, cons and accuracy comparison.
- Placement Calculator. Mounting height, angle, distance and lane width calculations for reliable plate capture.
- Lighting Requirements. IR illuminator positioning, sun glare mitigation and reflective plate handling.
- Software Configuration. OCR sensitivity, confidence thresholds, plate format rules and database integration.
- Barrier Integration. Connecting ANPR to barriers, gates, bollards and access control systems.
- GDPR Compliance Checklist. Signage requirements, retention periods, data access requests and privacy impact assessment.
What SIM and data plan do I need?
4G ANPR cameras work with any UK network — EE, Vodafone, O2 or Three. You can bring your own unlocked SIM or buy a pre-configured one from us. Most sites use a standard data-only SIM with no voice plan required.
Typical data usage is 5–15 GB per month per camera, depending on how many plate reads you process and whether you send full images or just text data. Some models support dual-SIM failover for extra reliability if one network drops out.
Frequently asked questions
What's the read accuracy?
A properly installed ANPR system achieves 95–99% read accuracy. Environmental factors and camera positioning are the main variables.
Can ANPR work with a 4G camera?
Yes — 4G ANPR cameras are available for locations without broadband. They process plates on-device and send alerts over 4G.
Do I need GDPR signage?
Yes — clear signage informing drivers that ANPR is in operation is a legal requirement under GDPR and the Surveillance Camera Code.
How long does installation take?
A single-lane ANPR camera typically takes 2–4 hours to install and configure, including mounting, cabling and software setup. Barrier integration may add another hour or two.
Can I add more cameras later?
Yes — most ANPR systems let you add extra cameras to cover additional lanes or entry points. The software scales to manage multiple cameras from one dashboard.
What happens if the internet goes down?
Most ANPR cameras store plate reads locally and sync automatically when connectivity returns. Barrier integration can work offline using local whitelists.
Do I need planning permission?
ANPR cameras on private property rarely need planning permission, but listed buildings or conservation areas may require approval. Check with your local council if unsure.