CAM-54
Load hanging over the crew
A circular shaft open in the middle of a street. On the right, a crawler crane holds a steel formwork cage suspended over the opening on four slings. At the bottom of the shaft, several metres below, a crew in helmets and hi-vis vests is working around the head of a tunnel boring machine. The load is directly above them.

Turn on IRIS Vision
AI-generated image
What IRIS understands
What it recognises in this scene
- suspended load
- crew underneath
- crane hook
- crawler crane
- boring machine
The rule
You decide once. IRIS applies it always.
If
there is a load on the hook and a person moves into the area directly beneath it
Then
- alert the crane operator and the supervisor with the camera, the time and the video of that moment
- mark the load on the image and the area at the bottom that sits underneath it
- keep the alert on file to go through it at the safety meeting
The instruction that set it up«If there's a load hanging and somebody walks underneath it, tell me right then — from the bottom of the shaft you can't see what's above you.»
What changes
What changes for whoever answers for the site
Today this rests on the banksman: one person watches, calls it on the radio and trusts that they are heard down below. The lift takes hours, it is noisy, and for a moment nobody has eyes on the area under the load. That moment never reaches a report, so nothing gets corrected. IRIS watches that area the whole time and raises an alert the instant someone walks into it, with the camera and the video. The alert goes to whoever is running the lift, because that is who can stop it. IRIS does not touch the crane and does not replace the banksman: it gives him a second pair of eyes that never tires.
What people usually ask
Does IRIS stop the crane if it detects someone under the load?
IRIS does not stop the crane and does not act on any machine. It raises an alert while the situation is happening, with the camera and the video, so the crane operator, the banksman or the supervisor can stop the lift. The decision and the action always belong to a person. IRIS does not replace the banksman or the health and safety plan either: it works alongside them.
Does IRIS know who the person under the load is?
IRIS does not know who it is. It detects that a person is in the area under the load; it does not detect who that person is. It does not recognise faces, it does not compare them against any database and it does not store anyone's identity. The alert exists to stop a lift while it can still be stopped, not to discipline a particular worker.
What if the crew is down there but the load is not moving yet?
If the load is not moving yet, the rule is set by the site, not by us. You can ask for the alert only once the load is on the hook, or from the moment the crane starts lifting, or whenever anyone is underneath at all, moving load or not. The closer the rule sits to how that site actually works, the more the alert gets taken seriously. If it fires when it shouldn't, within a week nobody looks at it.
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
- It lands in the tray
- You open it
- You confirm or dismiss
Next step
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.
Car parks
How many bays are free right now?
15 cases: 9 raise an alert when something happens and 6 only measure. You see each image as it is, and then with what IRIS understands on top.
And the best part
You decide the rule onceand it is applied the same way every time.
At three in the morning it means what it means at noon, on camera one and on camera four thousand. It does not depend on who is on shift, or how tired they are.
Tell us your problem and we will say whether IRIS understands it, or not yet.
We reply the same working day.