Shared intelligence automated access control system
First Claim
1. A portable memory device to enable execution of a desired action by a control device, said portable memory device comprising:
- a) a machine readable storage medium holding a data structure including;
i) schedule data providing at least one time interval during which the execution of the desired action may potentially be authorized by the control device; and
ii) schedule validation data. operative to validate said schedule data to the control device; and
b) said data structure being readable by the control device to acquire said schedule data and schedule validation data for determining if the execution of the desired action is to be authorized on a basis at least in part of said schedule data and said schedule validation data.
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Accused Products
Abstract
The present invention relates to access control systems ore commonly referred to as security systems. In a preferred embodiment of the invention, the access control system uses a memory card and a network of access control subsystems. Among the specific characteristics of the invention are the loading of schedule data on the memory card and the devolution of specific functions such as schedule validation to the access control subsystem level. These characteristics of the system provide, among other advantages, a reduction of the amount of wiring, a reduction in the hardware and installation costs, a considerable memory saving for the hardware and an increase in the system'"'"'s capacity and flexibility.
95 Citations
19 Claims
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1. A portable memory device to enable execution of a desired action by a control device, said portable memory device comprising:
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a) a machine readable storage medium holding a data structure including;
i) schedule data providing at least one time interval during which the execution of the desired action may potentially be authorized by the control device; and
ii) schedule validation data. operative to validate said schedule data to the control device; and
b) said data structure being readable by the control device to acquire said schedule data and schedule validation data for determining if the execution of the desired action is to be authorized on a basis at least in part of said schedule data and said schedule validation data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A portable access card for unlocking a door controlled by a control device, said portable access card comprising:
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a) a machine readable storage medium holding a data structure including;
i) a global set of schedule data elements, each schedule data element of said set being indicative of a time interval during which the door may be potentially unlocked by the control device; and
ii) schedule validation data; and
b) said data structure being readable by the control device to acquire said schedule data elements and said schedule validation data, said schedule validation data being operative to validate at least one of said schedule data elements to the control device by indicating through reference to a data arrangement external to said portable access card the at least one schedule data element that is representative of a time interval during which the control device can unlock the door. - View Dependent Claims (9, 10)
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11. A control device for controlling the execution of a certain action, said control device including:
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a) an input for receiving;
i) a global set of schedule data elements, each schedule data element of said set being indicative of a time interval during which the execution of the certain action may potentially be authorized by the control device; and
ii) schedule validation data; and
b) a processing unit responsive to said schedule validation data to validate at least one of said schedule data elements by identifying in said set of schedule data elements the at least one schedule data element that is representative of a time interval during which the control device authorizes execution of the certain action. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification