System for supervising access to restricted area, and method for controlling such a system
First Claim
1. A system for supervising access to a restricted area, comprising at least one obstacle that is mobile between a deployed configuration, in which said obstacle extends across a passageway leading to or out of said restricted area, and a stowed configuration, in which said obstacle is removed from said passageway, the system also comprising:
- a drive unit driving the obstacle between the deployed configuration and the stowed configuration, exerting an applied torque on the obstacle,a measuring device measuring a measured position of the obstacle,a circulation authorization system, installed in a motor compartment of the access supervision system, and comprising a central unit and document readers, each document reader communicating with a travel document of a user, and the central unit determining whether the user owning the travel document is authorized to use the passageway, anda control module controlling the drive unit,comparing the measured position of the obstacle at at least one moment in time with a theoretical position of the obstacle at said moment in time, and performing at least one of stabilizing and reducing the applied torque when the applied torque exceeds a threshold torque,wherein the value of the threshold torque is different depending on whether the difference between the measured position and the theoretical position of the obstacle is positive or negative.
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Abstract
The invention relates to a system for supervising access to a restricted area, including at least one obstacle that is mobile between a deployed configuration, in which said obstacle extends across a passageway for the entry and/or exit to/from said restricted area, and a stowed configuration in which said obstacle is removed from said passageway. The system also includes a unit for driving the obstacle between the deployed configuration and the stowed configuration, a device for measuring the position of the obstacle, and a module for controlling the drive unit. The control module is suitable for comparing the measured position of the obstacle at at least one moment in time with a theoretical position of the obstacle at said moment in time, and to derive a rule for controlling the drive unit.
41 Citations
12 Claims
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1. A system for supervising access to a restricted area, comprising at least one obstacle that is mobile between a deployed configuration, in which said obstacle extends across a passageway leading to or out of said restricted area, and a stowed configuration, in which said obstacle is removed from said passageway, the system also comprising:
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a drive unit driving the obstacle between the deployed configuration and the stowed configuration, exerting an applied torque on the obstacle, a measuring device measuring a measured position of the obstacle, a circulation authorization system, installed in a motor compartment of the access supervision system, and comprising a central unit and document readers, each document reader communicating with a travel document of a user, and the central unit determining whether the user owning the travel document is authorized to use the passageway, and a control module controlling the drive unit, comparing the measured position of the obstacle at at least one moment in time with a theoretical position of the obstacle at said moment in time, and performing at least one of stabilizing and reducing the applied torque when the applied torque exceeds a threshold torque, wherein the value of the threshold torque is different depending on whether the difference between the measured position and the theoretical position of the obstacle is positive or negative. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for controlling an access supervision system, said access supervision system comprising at least one obstacle that is mobile between a deployed configuration, in which said obstacle extends across a passageway leading to or out of a restricted area, and a stowed configuration, in which said obstacle is removed from said passageway, the system also comprising:
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a driving unit for driving the obstacle between the deployed configuration and the stowed configuration; a measuring device; a circulation authorization system, installed in a motor compartment of the access supervision system, and comprising a central unit and document readers, each document reader communicating with a travel document of a user, and the central unit determining whether the user owning the travel document is authorized to use the passageway; and a control module controlling the drive unit, wherein the method comprises the following successive steps; exerting an applied torque on the obstacle with the drive unit; measuring with the measuring device a measured position of the obstacle at at least one moment in time; comparing with the control module the measured position with a theoretical position of the obstacle at said moment in time; detecting a difference between the measured position and the theoretical position; deriving with the control module a control rule controlling the drive unit, said control rule increasing the applied torque exerted by the drive unit; detecting that the applied torque exceeds a threshold torque; and modifying the control rule so that said control rule stabilizes or reduces the applied torque exerted by the drive unit, wherein the value of the threshold torque is different depending on whether the difference between the measured position and the theoretical position of the obstacle is positive or negative.
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Specification