CAM-143
How many people are still inside if you have to evacuate
A classroom in mid-morning: twenty children sitting at their desks and, in front of the blackboard, the teacher taking the lesson. On the left, the wall of windows onto the playground; at the back on the right, the one and only door, open, with three more people who have just come through it. IRIS counts how many people are inside this space right now, and nothing else: it counts how many, not who. It does not recognise faces, it does not know who any of the children or the teacher are, and it does not store who anybody is. The lesson is not recorded: what comes out of here is one number per space.

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AI-generated image
What IRIS understands
What it recognises in this scene
- the desks
- way out of the room
- seated person
- person standing
- person crossing the door
What this camera gives back
Nobody gets an alert here. Here you get numbers.
- 24+2In the room now
- 28Capacity set by the school
- 57Come in today
- 33Gone out today
- 26Today's highest
- 11:05Last time it was empty
The figures on this screen are an example from the illustration, not any client's measurement.
IRIS incorporates NeuralPax, a separate licence certified by the Spanish Metrology Centre for people counting, occupancy and crowd-flow control. That the figure is right is guaranteed by a third party, not by us, and that is why it holds up against the regulations in force. The certification covers that measurement — counting people — not the whole product.
The series, not one figure
One number says nothing. A curve does.
How many people are inside, hour by hour
- Inside the room
- Capacity set by the school
| Slot | Inside the room |
|---|---|
| 08 | 25 |
| 09 | 26 |
| 10 | 26 |
| 11 | 0 |
| 12 | 24 |
| 13 | 24 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| Capacity set by the school | 28 |
How many cross the door, hour by hour
- Coming in
- Going out
| Slot | Coming in | Going out |
|---|---|---|
| 08 | 26 | 1 |
| 09 | 4 | 3 |
| 10 | 2 | 2 |
| 11 | 1 | 27 |
| 12 | 24 | 0 |
| 13 | 1 | 1 |
| 14 | 0 | 24 |
| 15 | 0 | 0 |
| 16 | 0 | 0 |
The figures on this screen are an example from the illustration, not any client's measurement.
How the counting works
Counting is not something you ask for. You draw a line.
Counting is not asked for in words: it is drawn. Asking in plain language is for searching and for describing a situation, but a count needs to know exactly where the line runs and in which direction, and only a stroke drawn on the image settles that. Here there is one line drawn across the threshold of the classroom door — cross it inwards and you are added, cross it outwards and you are taken off — and one area painted over the whole room. Those two things give the only number that matters: how many people are inside right now. Because the line is drawn once and does not move, Tuesday's count and Friday's come from the same place and can be compared: it is repeatable and it can be audited. And IRIS people counting is type-approved by the Spanish Metrology Centre, so that the figure is the right one is vouched for by an independent third party, not by us. That approval covers people counting; not the whole product.
- classroom door · Counting line
- the whole classroom · Dwell zone
What changes
What changes for the school team
Today, in a drill, a classroom is called clear when somebody walks in, looks around and walks out. With twelve classrooms, three corridors and a gym, that adds up to minutes; and in a real emergency minutes are all there is. With the line drawn, whoever is coordinating the evacuation sees on a screen whether the room is empty or whether twenty-one people are still in it, space by space, and knows where somebody has to go in and where nobody needs to. That is all this camera does. It does not take the register, it does not say who is missing and it does not measure anybody's work. And it does not appear on its own: the school is the one that puts it there, and the staff and the families are talked to before it goes up, not afterwards.
What people usually ask
Is this taking the register? Can it be used for attendance control?
No, and it cannot be. IRIS gives a number — how many people are inside this space — not a list of names. It does not recognise faces, it does not compare them against any database, it does not know who any child is and it keeps no file on anybody. If there are twenty-four people in the room, what the system knows is 'twenty-four', and that is where it ends: it cannot say who is missing, because it does not know who is there. The register is taken by the teacher, and that does not change. This number exists for one reason only: so that in an evacuation you know whether the space is empty.
Can it be used to keep an eye on the teacher or to assess her work?
No. IRIS does not measure the work of anybody on the staff, does not log anybody's hours and does not report what any person in the room is doing. It counts bodies inside a drawn area: it does not know who is teaching, it does not tell anybody apart by name and it sends the head teacher not a single line about any individual. A count of people per space cannot assess anyone, because it says nothing about anyone in particular; and anybody trying to use it that way would find there is no figure to hang it on. This camera is there for an evacuation, and the number it gives is good for that and nothing else.
Does a camera have to go inside the classroom at all?
Often it does not, and that is worth saying out loud. A classroom is the most sensitive place in a school, and plenty of schools will decide against a camera inside and count at the classroom door, in the corridor or on the stairs instead. That is a perfectly reasonable decision and the system works just the same: the line is drawn wherever the school wants it, and the headcount for the floor comes out of the same arithmetic. The school is the one that puts the camera up, and the first step is talking it through with the staff and the families, before anything is installed. If that conversation ends in 'not inside the classroom', then not inside the classroom.
Demo · IRIS at work
This isn’t a video. It’s a slice of the real screen.
A summary of the real interface, played hands-free. You see one case from start to finish; what you do not see are the other screens, and there are many.
- The rule gets built
- It goes to every camera
- Published, it watches alone
- And then it fires
Next step
Stadiums and venues
What does a venue with twenty thousand people inside see?
15 cases: 11 raise an alert when something happens and 4 only measure. You see each image as it is, and then with what IRIS understands on top.
Hotels
When does a bad review get decided?
15 cases: 11 raise an alert when something happens and 4 only measure. You see each image as it is, and then with what IRIS understands on top.
And the best part
There are nights of thick fogwhen the image gives you nothing. We do not dress that up.
Backlight, heavy rain, a street lamp that has blown. IRIS works with what the camera puts in front of it; when there is no image, it says so instead of inventing an answer.
Tell us your problem and we will say whether IRIS understands it, or not yet.
We reply the same working day.