Elevator system
First Claim
Patent Images
1. An elevator system, comprising:
- a building having a plurality of floors,at least one elevator car having car call means, said at least one elevator car being mounted in said building to serve the floors therein,security means at at least one of the floors for recognizing predetermined security inputs,enabling means providing a floor enabling signal for a predetermined floor, with said floor enabling signal persisting for a predetermined period of time sufficient to enable a call to be registered via the car call means, in response to the recognition of a security input by said security means,memory means responsive to a car call for the enabled floor within the predetermined period of time for providing a second enabling signal for the enabled floor,and control means responsive to the second enabling signal and to the car call for causing the elevator car to serve the car call and to provide a completion signal when the service has been completed,said memory means terminating the second enablement signal in response to said completion signal.
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Abstract
An elevator system having a security terminal which enables predetermined floors in response to predetermined security inputs. The security terminal, in response to an authorized input, issues a floor enabling signal to a selected elevator car. Timely registration of a car call in the selected car for the enabled floor latches the enablement for the duration of the run.
23 Citations
11 Claims
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1. An elevator system, comprising:
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a building having a plurality of floors, at least one elevator car having car call means, said at least one elevator car being mounted in said building to serve the floors therein, security means at at least one of the floors for recognizing predetermined security inputs, enabling means providing a floor enabling signal for a predetermined floor, with said floor enabling signal persisting for a predetermined period of time sufficient to enable a call to be registered via the car call means, in response to the recognition of a security input by said security means, memory means responsive to a car call for the enabled floor within the predetermined period of time for providing a second enabling signal for the enabled floor, and control means responsive to the second enabling signal and to the car call for causing the elevator car to serve the car call and to provide a completion signal when the service has been completed, said memory means terminating the second enablement signal in response to said completion signal. - View Dependent Claims (2, 3, 4, 5)
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6. An elevator system, comprising:
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a building having a plurality of floors, at least one elevator car having car call means, said at least one elevator car being mounted in said building to serve the floors therein, security means at at least one of the floors for recognizing predetermined security inputs, enabling means for providing, and for setting and resetting, a first enablement signal, said enabling means setting said first enablement signal in response to the recognition of a security input by said security means, said set first enablement signal enabling a car call to be placed via said car call means for the enabled floor identified by the specific security input, said enabling means resetting said first enablement signal after a predetermined period of time, memory means for providing, and for setting and resetting, a second enablement signal, said memory means being responsive to a car call being placed via said car call means while said first enablement signal is set, for setting said second enablement signal for the enabled floor, and control means for causing at least one elevator car to serve the floor enabled by the set second enablement signal, and to provide a completion signal when such service has been completed, said memory means resetting the second enablement signal in response to said completion signal. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification