People-Counting Camera
A people-counting camera above the door detects tailgating attempts, adding a layer of security at your entrance.
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Tailgate detection
How tailgate detection works
Our Tailgate Detection System provides an added layer of security by detecting and calling out unauthorised access to your facility. It uses advanced sensors to identify tailgating attempts and triggers alerts for fast action. It even checks that each card badge is unique before it adds to the number expected through the door.
How it works
A count line, and a card for every person
The tailgate detector uses a people-counting camera installed on the ceiling on the secure side of the door. A virtual line is set up to detect anyone entering the facility.
Each time a valid card is presented at the access reader, the system records the entry. If more people cross the virtual count line than valid cards are presented, the system recognises the tailgating attempt and triggers an alarm.
When someone tailgates
Alerts can be simple warning lights or the more sophisticated voice over the speakers — our ITAC announcements — so everyone knows there is an intruder.
A follow-up list on the DoorGuard24 display lets you click and view the footage (providing your NVR is supported) — on site or at home.
Integration with existing access control
Catch who comes in without a card
Real-Time Alerts and Monitoring
Monitor and receive real-time alerts for any attempted unauthorised access.
Integrates with Existing Access Control
Works alongside your existing access control.
Our Own Design
The tailgate board is designed by InnerTelligence, and the DoorGuard24 tailgate module lists every event for follow-up.
Tailgate Reports
DoorGuard24's report library includes tailgate analysis, ready to run for any date range.
What's involved
From your door to your event list
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01
We look at your door
The entrance, your access control and your camera recorder (NVR), so we know what the system connects to.
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02
We fit the camera and board
A people-counting camera on the ceiling on the secure side of the door, and our tailgate board connected to your access control.
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03
We set up the alerts
Warning lights or ITAC announcements, and the DoorGuard24 event list, set up for your site.
Detection or a speed gate
Caught, or stopped?
Tailgate detection catches the person who follows a member in. A speed gate stops them: it lets one person through for each valid card.
Detection suits an existing door, where a gate won't fit or isn't needed. A gate suits a busy entrance where you want tailgating stopped, not just caught. Some sites use both.
In short
- Tailgate detection: catches it, at the door you have
- A speed gate: stops it, one person per card
- Both: a gate at the front, detection where a gate won't fit
Common questions
Tailgate detection, answered
What is the Tailgate Detection System?
A system that detects when more than one person enters on a single card swipe — using a people-counting camera above the door — and raises an alert.
How does it integrate with existing access control technologies?
It works alongside your existing access control, comparing the people who come through with the valid cards presented.
What do I need to click and view the footage?
A supported NVR (camera recorder). We check yours when we look at your door.
Who can benefit from this solution?
It suits gyms, offices, or any facility that controls who comes in.
What it costs
What is tailgating costing you?
Put in your weekly membership fee and how many people you think train without paying, and see what it adds up to, and what it costs to stop it.