Solutions · Visitor Management (VMS)

Stranger Detection

Every registered face in a designated area is expected. Anyone else isn’t. The moment Collie’s cameras spot a face that isn’t in your database, it’s tagged as a stranger and security is notified instantly — on the web app and directly to Telegram, with the location, device, and time attached.

Stranger Detection in Collie web based app

Not everyone belongs everywhere

A general lobby camera and a server room camera should treat visitors very differently — one welcomes them, the other flags them.

Unauthorised presence goes unnoticed

Without active monitoring, someone who shouldn’t be in a restricted zone can go unnoticed for the length of an entire shift.

Slow manual response

Reviewing footage after the fact means the response comes after whatever was going to happen already has.

Too many cameras, too few eyes

A security team can’t stare at every feed from every restricted zone at once — and shouldn’t have to.

From an unfamiliar face to an alert

Designated zone monitoring

Choose which cameras and areas should treat an unrecognised face as a stranger — a server room, not a lobby.

Registered database matching

Every face is checked against the same registered database used across Collie — no separate stranger-only enrolment to manage.

Instant alerts

An alert lands on the Collie web app and directly in Telegram the moment a stranger is flagged — no need to be watching a screen.

Full alert detail

Each notification includes the location, the specific device, and the exact time — enough to act on immediately.

How it flows

Watch. Compare. Alert.

Video analytics can run on your existing CCTV, NVR, or VMS — Collie’s platform adapts to the infrastructure you already have.

01

Watch

Cameras in designated zones continuously scan for faces, running the same detection used across Collie’s platform.

02

Compare

Every detected face is checked against the registered database in real time — a match clears silently, a miss doesn’t.

03

Alert

An unrecognised face triggers an immediate notification with location, device, and time — to the app and to Telegram.

Alerts reach you where you already are

Stranger alerts show up in the Collie web app for anyone reviewing the dashboard, and push directly to Telegram so security personnel don’t need to keep a browser open to stay informed. Both carry the same detail — where, on which device, and exactly when.

Checked against who's actually on site

Stranger Detection uses the same Worker, Staff and Visitor registry as the rest of Collie — so a robot on patrol, or a fixed camera at a gate, both flag the same unrecognised face the same way, with no separate list to maintain.

Where it’s deployed

Anywhere a zone should stay exclusive

Offices

Server rooms and executive floors where only specific staff should ever appear.

Industrial Sites

Restricted process areas and hazardous zones limited to authorised personnel.

Hospital

Sterile zones and medication storage areas where an unrecognised face is an immediate concern.

Residential

Common areas and building entrances where residents are known, but a stranger stands out.

Frequently Asked Questions (FAQ)

What counts as a "stranger" in Stranger Detection?

Anyone whose face doesn’t match a registered profile in the system is flagged as unrecognised, prompting an alert rather than being silently let through.

How is Stranger Detection different from a normal CCTV alarm?

Instead of relying on a person watching a monitor, the AI continuously compares every face on camera against the registered database and raises an alert automatically the moment there’s no match.

Can Stranger Detection run at multiple entry points at once?

Yes, it runs across every connected camera or checkpoint simultaneously, so unrecognised individuals are flagged wherever they appear on the covered site.

Does it work on the robot fleet during patrols?

Yes – the robot dog and other patrol units run the same stranger detection module, extending the check to areas without a fixed camera.

What happens after a stranger is flagged?

The event is logged with a timestamp and location, and can trigger a real-time notification to security staff so they can respond immediately.

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Know the moment someone doesn't belong

Tell us which areas need to stay exclusive, and we’ll show you how fast an alert can reach your team.