Applications / Security
After-Hours Intrusion Detection
Detects presence and movement inside buildings, yards and restricted zones during the hours a site is configured as closed, and logs every out-of-hours event with its clip.
See it in action
Movement at 02:40, on a site that closed at 18:00
Video slot — awaiting upload.
What it detects
An empty site is the easiest detection problem there is: anything moving is worth a look. These are the out-of-hours events Fogsphere surfaces.
Out-of-hours presence
Identifies people inside buildings, yards, plant rooms and back-of-house areas during configured closed hours.
Break-in indicators
Flags forced doors, broken glazing, movement at shutters and activity at tank, cage and till areas outside trading hours.
Night-time activity on temporary sites
Covers construction and project sites where fence lines, cabins and laydown areas move week to week, adapting as the site layout changes.
Unauthorised vehicle movement
Detects vehicles entering, moving through or leaving the site outside the hours their authorisation covers.
Restricted deck, control-room and cabinet access
Surfaces presence in control rooms, switchrooms, server halls and equipment enclosures where no work is scheduled.
Lone worker versus unexpected presence
Separates a known lone worker or scheduled night shift from an unexpected presence, using the shift and permit schedule for that zone.
High-value store and cage access
Flags cage doors opened, stock removed and store-room activity outside the hours those areas are meant to be worked.
Door forced-open detection
Identifies doors opened against their normal sequence — forced, levered or opened from the wrong side.
Restricted-storage access outside hours
Detects entry to cold rooms, medication rooms, chemical stores and similar controlled storage outside their scheduled access windows.
Schedule-aware zoning
Applies a different definition of “closed” per zone, per day and per shift pattern, including planned shutdowns, holidays and outage weeks.
Where it applies
After-hours detection is named in nine of the twelve Q3 papers. It is the most consistently requested security capability across retail, oil & gas forecourt, construction, manufacturing, logistics and healthcare.
How it works
Edge inference on the cameras you already have
Out-of-hours detection uses the cameras already covering the space. Inference runs on-site, so a closed and unstaffed location does not depend on an uplink to be watched.
Zones, thresholds and schedules you configure
The schedule is the configuration. Set closed hours, shift patterns, permitted night activity and planned shutdowns per zone, so a scheduled maintenance window does not generate the same alerts as an empty Sunday.
Every event carries its own evidence
Each detection is logged with a timestamp, the camera and zone it came from, and a short clip. The record can be reviewed, exported or attached to an investigation without trawling through hours of footage.
Feeds the systems already in place
Events surface in Fogsphere Manager and route outward to the VMS, access-control platform, control-room wallboard, ticketing queue or messaging channel operators already watch.
Risk & control objective
The control objective is a reliable answer to a simple question: was anyone here when the site was supposed to be empty, and what did they do? Most sites can only answer it retrospectively, by pulling footage after something is found missing the next morning.
The difficulty is never detection — it is the schedule. Real sites are rarely fully closed. Night shifts, contractor call-outs, cleaning crews, permitted maintenance and lone workers all legitimately occupy an “empty” site. Detection that cannot represent that ends up muted. The schedule model is therefore the product, and the detection is the easy part.
For unstaffed and remote locations the economics are decisive. Substations, forecourts, project sites and satellite depots cannot justify manned guarding, but they hold enough value to warrant a record. Edge inference on existing cameras gives those sites the same out-of-hours log a staffed site gets from its guard.
Related solutions
Get a record of every hour your site was supposed to be empty
We will show you schedule-aware out-of-hours detection on your own cameras, including how planned night work is handled.