Back to results
US 10,482,736 B2Granted
Restricted area automated security system and method
AssigneePepperl + Fuchs GmbH
InventorsNolan Kariniemi, Mark Pikkarainen
Life of this patent
Estimating the term…
Abstract
A security system includes a plurality of laser scanners to establish light shields in an area to be monitored, with each of the light shields including at least one detection zone, and a controller to detect unauthorized entry to the area to be monitored based on a position and timing of breaks in the detection zones of the light shields.
Claims13
A security system, comprising:
- a plurality of laser scanners to establish light shields in an area to be monitored, each of the light shields including at least one detection zone;
- and
- a controller to detect unauthorized entry to the area to be monitored based on a position and timing of breaks in the detection zones of the light shields,
- the controller to determine a direction of movement of an entity within the area to be monitored based on a sequence in which breaks in the detection zones of the light shields occur,
- the controller to trigger a security action if the direction of movement is disallowed,
- the controller not to trigger a security action if a direction of secondary movement of the entity is opposite a direction of primary movement of the entity that is allowed.
3 more elements
A security method, comprising:
- establishing light shields with a plurality of laser scanners in an area to be monitored, each of the light shields including at least one detection zone;
- and
- detecting unauthorized entry to the area to be monitored based on a position and timing of breaks in the detection zones of the light shields
- determining a direction of movement of an entity within the area to be monitored based on a sequence in which breaks in the detection zones of the light shields occur,
- triggering a security action if the direction of movement is disallowed,
- not triggering a security action if a direction of secondary movement of the entity is opposite a direction of primary movement of the entity that is allowed.
3 more elements
Dependencies are inferred from the claim text.