Dru ANPR logo SaaS product · Marandev

Dru ANPR: the gatehouse that reads plates for you.

Take or upload a photo of the vehicle and Dru ANPR reads the plate, tells you whether it belongs to the complex and you decide whether to log the entry or the exit. It works with Colombian cars and motorcycles, in the cloud or installed on your complex’s own computer.

Reading detail in Dru ANPR: vehicle photo with the detected plate, confidence and the “Does not belong” status. Plate and photo blurred.
The problem

Writing plates by hand is not access control

Notebooks and spreadsheets leave entries unlogged, typing mistakes and no way to know who is still inside. Dru ANPR turns each photo into a reading with its decision, and each entry and exit into a record you can search.

  • Belongs or does not belongEach complex registers its units with their contact person and vehicles; when a plate is read, the app says whether it is a resident’s or a visitor’s.
  • The guard decidesThe reading suggests the action: log entry, log exit or discard. Nothing is logged without the decision of the person at the gate.
  • Each complex, its own spaceMulti-company: every complex has its own units, vehicles, users, plan and data, isolated from the others.
Features

From the photo to the access record

  • Colombian plate reading

    Detects and reads the plate of cars and motorcycles with an in-house computer-vision engine, with a confidence percentage and several plates per photo.

  • Photo, camera or phone

    Drag or pick an image (JPEG, PNG, BMP or WebP, up to 15 MB) or use the phone or laptop camera, even live.

  • Units and vehicles

    Apartments and houses with their contact person and linked vehicles: car, motorcycle or other, with make and color.

  • Resident or guest

    If the plate belongs to the complex it shows the unit and contact; if not, it lets you admit it as a guest with optional destination unit and note.

  • Entries and exits

    Logs the entry and closes the exit on the same stay, with manual exit for forgotten ones and an “Inside now” view.

  • Reading history

    Every detection is kept with its photo, plate crop and the decision taken, with filters by plate, dates, membership and decision.

  • Roles and multi-company

    The administrator manages units and vehicles; the guard looks up and logs access. Each company sees only its own data.

  • Cloud or on site

    The same product runs in the multi-company cloud or installed on a computer at the complex, with a signed annual license.

  • Light and dark theme

    An interface designed for the gatehouse, working on phone, tablet and computer, with light and dark themes.

How it works

Four steps at the gate

  1. Capture

    The vehicle photo is taken or uploaded from a phone, tablet or computer.

  2. Read

    The engine detects the plate, reads it and compares it with the complex’s vehicles.

  3. Decide

    The app shows resident or visitor and suggests entry, exit or discard.

  4. Log

    The access is saved with who and when, and the reading is kept in the history.

The app

A clear gatehouse, from photo to decision

Real screenshots from a Dru ANPR test environment. Plates and vehicle photos are hidden.

“Read plate” screen with a drop area for the photo and buttons to use the camera or choose an image
Read plate: upload a photo or use the device camera.
Reading history with filters by plate, date, membership and decision; plates and photos hidden
Reading history with filters by plate, dates, membership and decision.
Reading detail on a phone: vehicle photo with the detected plate, blurred
Works from a phone, also to take the photo at the gate.
Under the hood

Built to run for real

Designed, developed and deployed end to end by Marandev.

  • Go API
  • Computer vision (YOLO + OCR)
  • ONNX Runtime
  • PostgreSQL
  • SvelteKit (SPA)
  • Nginx + Ansible
  • Multi-company and roles
  • Cloud or on site
  • One product, two modesThe same binary runs in the cloud (multi-company) or on the complex’s computer, where validity comes from a license signed with Ed25519 cryptography.
  • Normalized platesPlates are cleaned and validated (5 to 7 characters) and each vehicle is unique per complex, to avoid duplicates.
  • Infrastructure as codeThe whole server is provisioned and deployed in a repeatable way, with versions visible in the app.

Coming soon: IP cameras (RTSP), live events and webhooks.

Want Dru ANPR at your complex?

Write to hola@marandev.co