Datasheet
rev. 00003 · June 2026

Metrici QR web interface

Web management interface for QR Code recognition

Features
Architecture
Web-based, with a relational database behind
Access to data
Password authentication, discrete user rights, detailed logs
Number of simultaneous connected users
Unlimited
Number of stored recognized QR Codes
Unlimited, constrained by the size of the available storage
List of recognized QR Codes
Yes, can be filtered by country of origin, location, camera, direction of movement, group, info
QR Codes flow
Selectable alert method, can be filtered by location and camera
Live view
Realtime 1 fps images from all connected cameras
Actions (white/black/gray lists)
Definable for each recognized QR Code; open door, e-mail or popup recipients; can be grouped together
QR Code information
One field of text can be attached to each QR Code
Reports
Top QR Codes, QR Codes each hour, QR Codes each day, QR Codes each month, QR Codes each camera
Time tables
Yes, unlimited numbers
Data export
XLS, CSV and PDF formats
Retention period
90 days by default, can be changed
Backup and restore
Selectable, for general settings or for the entire database
API
GET method over HTTP; XML and JSON data source
System requirements
OS
Ubuntu 24.04 LTS MATE, Linux CentOS 7 (64-bit)
CPU
Intel Xeon; AMD Ryzen, Threadripper or Epyc
System memory
Minimum 4 GB/server
Storage
Less than 180 GB/year for 1000 QR Codes/day, depending on the camera resolution and image compression