CAM-462
The sign gets it right because the number comes from the bays themselves
Rush hour at the entrance to a level. A lit sign hangs over the roadway and splits the traffic by floor: one full, two with room and a row for charging. Three cars pass underneath; one turns towards the green bays on the right, where a post is still free. On the ceiling, a line of green and red lights marks bay by bay. IRIS counts the bays by looking at them and sends the number to the sign.

Turn on IRIS Vision
AI-generated image
What IRIS understands
What it recognises in this scene
- guidance sign over the roadway
- per-bay lights on the ceiling
- car turning into the charging zone
- car following the guidance
- car heading up to the next level
- charging post
What this camera gives back
Nobody gets an alert here. Here you get numbers.
- 12Free on this level
- 27Free on the next level
- 3Charging bays free
- 84Entries in the last hour
- 20 sSign lag
- 18:05Time of the reading
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.
Over the rows of bays there are drawn zones, one per type. Inside each zone IRIS looks at whether a vehicle is on each bay and for how long. And there is a line across the access lane: whatever crosses it is added to the entries for that level. Neither the zone nor the line can be asked for out loud; they are drawn once over the frame and stay there, and that is why one Tuesday's number can be compared with another Tuesday's.
- entry line onto the level · Counting line
- charging zone in the foreground · Dwell zone
- charging zone further back · Dwell zone
And also, one rule
You decide once. IRIS applies it always.
If
the number on the sign and the bay count stop matching
Then
- correct the sign with the count made by looking at the bays
- alert the control room with the level and the time
- save the reading and the image so they can be checked later
The instruction that set it up«Send the free bays for each level to the sign and tell me if the sign and the count stop matching.»
What changes
What changes for whoever runs the car park
A sign that gets it wrong is worse than no sign at all: it sends cars to a full level and the driver stops believing it. The error almost always comes from counting entries and exits, because every motorcycle that slips past next to a car and every barrier left up throws the tally off, and nobody squares it again until night. If the number comes from looking at the bays, the sign corrects itself on every reading.
What people usually ask
Why does the number on a guidance sign go wrong?
Almost always because of how it is worked out. If the number comes from entries minus exits, every car that slips through uncounted and every barrier left up stays inside the tally, and the error grows through the day. Looking at the bays, every reading starts from zero again: if twelve bays have no car on them, it is twelve, even if the barrier has been out of step all morning.
Can IRIS send the number to my sign and my app?
Yes. The count comes out as a figure per level, per zone and per bay type, and from there it goes to the entrance sign, the traffic light, the app or whatever system the car park already runs. IRIS does not replace that system: it hands it a number measured by looking at the bays, and the time it was measured.
Do you need one camera per bay?
No. One camera covers a whole row or a whole face of bays, depending on the height and the angle it looks from. What is needed is that every bay is visible: a bay hidden behind a column cannot be counted by looking at it, and that is said before installing, not afterwards.
Other cameras
- CAM-460 · How many bays are left, and of what kind
- CAM-461 · Four minutes going round and not one free space
- CAM-463 · Six cars waiting and the queue is already out on the street
- CAM-464 · There is a queue because nobody gets through that machine
- CAM-465 · Two cars crossed on a single opening
- CAM-466 · Three hours in a thirty-minute bay
See it for yourself
Everything comes in. Only what matters gets through.
This sums up what IRIS does with one alert, from the moment it appears until it is closed. The real screen holds far more; this is the main thread.
- The alert fires
- You open it
- You confirm or dismiss
Next step
Critical infrastructure
Who is watching a site where there is almost never anybody?
44 cases, and in every one of them IRIS raises an alert when something happens. You see each image as it is, and then with what it understands on top.
Industry
Why did the line stop?
237 cases, and in every one of them IRIS raises an alert when something happens. You see each image as it is, and then with what it understands on top.
And the best part
The door was left open at two.Finding out at nine is no use to anyone.
The video tells you at nine. IRIS says it at two, with the camera, the time and the images from that moment. The difference between the two is whether someone can go.
Tell us your problem and we will say whether IRIS understands it, or not yet.
We reply the same working day.