CAM-548

Both of them inside the airlock, inner door still open

The access airlock is built to take one person at a time: one door closes before the other opens. In the picture there are two people inside the same space and the inner door is still open. One of them is still holding a badge. The guard is at his station, with his back turned. Outside, a third person crosses the lobby. IRIS counts how many bodies are inside the airlock and how long the door has been open.

CAM-548 · SECURITY AIRLOCK · TWO INSIDE AT ONCE

What IRIS understands

What it recognises in this scene

two people inside the airlock
airlock booth
inner door still open
airlock reader
badge still in hand
guard at his station
guard station
person crossing the lobby

What this camera measures

An alert says something is happening. The reading says how much.

2People inside the airlock
1People the cycle allows
4 sSeconds with the inner door open
19 sLength of the cycle
08:52:06Video saved from

The figures on this screen are an example from the illustration, not any client's measurement.

The rule

You decide once. IRIS applies it always.

there are two or more people inside the airlock at once

Then

alert the guard station with the airlock, the time and how many are inside
save the video of the whole cycle, from the moment the first door opened
add the crossing to the shift tally for the monthly report

The instruction that set it up«Tell me if there is more than one person inside the airlock at the same time.»

What changes

What changes for whoever answers for physical security on site

The airlock is the expensive part of the entrance, and it is worth little if people use it two at a time. The trouble is that nobody sees it: the cycle lasts twenty seconds and the guard is looking at something else. IRIS puts a number where today there is none: how many times a month the airlock is crossed with two people inside. With that number, the security manager decides whether to remind people of the procedure or whether the door itself is out of adjustment. And on audit day, the figure is written down.

What people usually ask

Shouldn’t the airlock itself prevent this?

Many try, and some succeed. But an airlock can drift out of adjustment, it can be in maintenance mode, or it can have a door that is slow to close. When that happens, today nobody finds out. The camera looks at the space from outside and counts bodies: if there are two where one fits, it says so, whatever the reason. And it leaves the video of the cycle, which is what tells you whether it was the door or somebody in a hurry.

Does IRIS know how many people were authorised to go through?

No. The camera counts how many people are inside. How many were authorised belongs to access control. They are two different pieces of data and you need both: on their own they say nothing, together you can see at a glance whether the cycle was correct. That is the honest way to put it, and it is the version that holds up in front of an auditor.

Doesn’t this make reception an uncomfortable place?

No, because the alert does not go to the door: it goes to the guard station and into the report. Nobody gets locked in, nobody is told off in front of a visitor and nothing is blocked. The point is that the procedure is followed, and that it can be shown to have been followed — not to make life awkward for people coming in to work.

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