Exit Lane Monitoring System
First Claim
1. An exit lane monitoring system for detecting and blocking wrong-way movement through a passage between an access-controlled area and a public area comprising:
- at least one heel before toe sensor positioned on the floor of the passage, the sensor detecting the foot pressure exerted by people moving through the passage from the access-controlled area toward the public area and persons moving through the passage from the public area toward the access-controlled area;
passage control means selectively blocking the passage to prevent persons moving through the passage from the public area toward the access-controlled area; and
,control means responsive to a sensor indication that someone is moving through the passage from the public area toward the access-controlled area to activate the passage control means to block the passage and prevent movement of the person into the access-controlled area.
1 Assignment
0 Petitions
Accused Products
Abstract
An exit lane monitoring system (10) detects wrong-way movement through a passage (P) between a secure area and a public area. Heel before toe sensors (12) are positioned on the floor of the passage and detect the foot pressure exerted by people moving through the passage from the secure area toward the public area and of persons moving the wrong way through the passage. Positioning of the sensors in the passage depends upon the geometry of the passage so sensors may be oriented in a non-geometric pattern if so dictated by the passage'"'"'s geometry. A door (D) is selectively operated to block the passage and prevent persons moving the wrong way through it from entering the secure area. A control unit (16) is responsive to a sensor indication that someone is moving the wrong way to activate the door to block the passage and prevent movement into the secure area.
25 Citations
20 Claims
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1. An exit lane monitoring system for detecting and blocking wrong-way movement through a passage between an access-controlled area and a public area comprising:
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at least one heel before toe sensor positioned on the floor of the passage, the sensor detecting the foot pressure exerted by people moving through the passage from the access-controlled area toward the public area and persons moving through the passage from the public area toward the access-controlled area; passage control means selectively blocking the passage to prevent persons moving through the passage from the public area toward the access-controlled area; and
,control means responsive to a sensor indication that someone is moving through the passage from the public area toward the access-controlled area to activate the passage control means to block the passage and prevent movement of the person into the access-controlled area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of detecting wrong-way movement through a passage leading from a secure area to a non-secure area and blocking the passage when the wrong-way movement is detected, comprising:
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positioning heel before toe sensors on the floor of the passage, each sensor detecting the foot pressure exerted by a person moving through the passage in either direction and the sensors providing an indication when movement from the non-secure area toward the secure area is detected; and
,in response to the sensors'"'"' indication, blocking the passage to prevent a person moving through the passage from the non-secure area toward the secure area from entering the secure area. - View Dependent Claims (17, 18, 19, 20)
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Specification