Applications / Security
Open-Closed Doors
Detects the state of doors, gates, hatches and cabinets — open, closed, left open too long — and the events that should have accompanied a change of state.
See it in action
Door state, open duration and the events behind it
What it detects
Harvested from the computer-vision use-case columns of the Q3 industry papers. Every item below is a rule you can switch on, tune per zone and report on.
Door left open, with duration
Reports not only that a door opened but how long it has stayed open.
Fire-door and emergency-exit state
Flags fire doors propped, wedged or held open, and emergency exits used outside an emergency.
Cold-room and cold-chain door monitoring
Detects prolonged cold-room door-open events where product exposure follows from the duration.
Dock door open with no trailer present
Surfaces the specific combination the Q3 logistics paper calls out as a security exposure.
Trailer and container door-open detection
Covers seal-check workflows and doors opened away from a dock.
Maintenance panel and cabinet left open
Applies the same rule to electrical panels, valve cabinets and key cabinets.
Safety-door and interlock state on machine cells
Reads cell door state as part of the same detection rather than a separate system.
Confined-space hatch state
Detects open hatches on vessels, tanks and pits.
Doors and gates left open at the perimeter
Flags perimeter openings that stay open outside a movement window.
Door events without a matching badge or WMS record
Correlates the state change with the systems that should have authorised it.
Where it applies
The sub-sectors below are the ones the Q3 industry papers name for this detection. Each links to the industry hub.
In Oil & Gas
Confined-space hatch and door status on rigs and offshore platforms. Valve-cabinet tamper detection at wellheads and isolation points. Refinery control-room access and after-hours door monitoring.
How it works
01
Runs on the cameras you already have
Inference happens at the edge on your existing CCTV and IP streams. No new camera estate, no video leaving site, no cloud round-trip in the detection loop.
02
Thresholds and zones you configure
Draw the zone, set the rule, set the dwell, count and confidence thresholds. Rules differ by area, shift and task, because sites do.
03
Evidence, not just alerts
Every event is logged with camera, zone, timestamp and a clip, so the record is reviewable afterwards and usable in a corrective action.
04
Integrates with what you already run
Events push into your VMS, alerting and reporting stack through Fogsphere Manager, with dashboards broken down by area, shift and crew.
Risk & control objective
Door state looks like the simplest thing on this list and turns up in the Q3 papers under four different headings: security (perimeter doors and gates left open), cold chain (door-open duration and product exposure), egress (fire doors propped open) and machine safety (interlock and cell door state). The common failure is that a door sensor, where one exists at all, reports a transition and nothing about context.
The control objective is door state read together with what was around it — whether a trailer was present, whether a badge event accompanied it, how long it stayed open, whether anyone went through. What the operator gains is a door record that supports a cold-chain deviation, a security investigation and an egress audit from the same detections.
Related solutions
See Open-Closed Doors running on your own cameras
Bring a door camera and a rule. We will show you what the model surfaces on your site, not on a demo reel.