Method and device for arming and disarming status in a facility monitoring system
First Claim
1. A security system comprising:
- a card including a transponder circuit to transmit data responsive to an energize signal;
a contactless card reader for receiving data transmitted by the card, the contactless card reader includinga scheduler configured and arranged to generate an output in response to determining that the contactless card reader is to begin transmitting;
a controller communications circuit configured and arranged to respond to the output from the scheduler by calculating a transmit start time based upon a number of channels in a frequency-hop table between a current transmitting channel and an expected listening channel of a receiving device and an expected listening time that the receiving device is expected to begin listening on the expected listening channel, and starting a transmission based upon the determined transmit start time;
a card energizing circuit for producing the energize signal,a battery circuit for powering the controller communications circuit and the card energizing circuit, anda power-control circuit to control use of the battery circuit in response to card proximity, wherein the contactless card reader is configured to store a log of access requests and to transmit the log of access requests at predetermined intervals that correspond to the output from the scheduler; and
a controller that controls arming and disarming of the security system based on data wirelessly transmitted by the communications circuit and wherein the controller is configured and arranged to wirelessly communicate with multiple peripheral devices.
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Accused Products
Abstract
Security systems and methods are implemented using a variety of devices and methods. According to one such implementation, a controller arms or disarms a security system responsive to a contactless card reader. The contactless card reader includes a circuit for wirelessly interfacing with the controller, a battery circuit, and a sensor for detecting a contactless card. The card reader further includes a power-control circuit, responsive to the sensor, to control use of the battery circuit, and a coil for energizing the contactless card in response to the contactless card being detected by the sensor. The contactless card transmits data to the contactless card reader when the contactless card is energized. Responsive to the data transmitted by the contactless card, the contactless card reader wirelessly interfaces with the controller, which arms or disarms the security system based on the data transmitted by the card.
62 Citations
12 Claims
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1. A security system comprising:
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a card including a transponder circuit to transmit data responsive to an energize signal; a contactless card reader for receiving data transmitted by the card, the contactless card reader including a scheduler configured and arranged to generate an output in response to determining that the contactless card reader is to begin transmitting; a controller communications circuit configured and arranged to respond to the output from the scheduler by calculating a transmit start time based upon a number of channels in a frequency-hop table between a current transmitting channel and an expected listening channel of a receiving device and an expected listening time that the receiving device is expected to begin listening on the expected listening channel, and starting a transmission based upon the determined transmit start time; a card energizing circuit for producing the energize signal, a battery circuit for powering the controller communications circuit and the card energizing circuit, and a power-control circuit to control use of the battery circuit in response to card proximity, wherein the contactless card reader is configured to store a log of access requests and to transmit the log of access requests at predetermined intervals that correspond to the output from the scheduler; and a controller that controls arming and disarming of the security system based on data wirelessly transmitted by the communications circuit and wherein the controller is configured and arranged to wirelessly communicate with multiple peripheral devices. - View Dependent Claims (2, 3)
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4. For use in a security system that uses a controller to communicate with security-monitoring devices, a contactless card reader comprising:
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a circuit for wirelessly interfacing with the controller by determining a transmit start time based upon a number of channels in a frequency-hop table between a current transmitting channel and an expected listening channel of the controller and an expected listening time that the controller is expected to begin listening on the expected listening channel, and starting a transmission based upon the determined transmit start time; a battery circuit; a sensor for detecting a contactless card; a power-control circuit, responsive to the sensor, to control use of the battery circuit; and a coil for energizing the contactless card in response to the contactless card being detected by the sensor, the contactless card transmitting data to the contactless card reader in response to being energized; wherein, responsive to the data transmitted by the contactless card, the contactless card reader wirelessly interfaces with the controller, the controller arming or disarming the security system based on the data transmitted by the contactless card. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. A method for arming or disarming a security system that uses a controller to communicate with security-monitoring devices and a battery powered contactless card reader, the method comprising:
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detecting the presence of a contactless card by the contactless card reader; activating the contactless card reader in response to detecting the contactless card; energizing a coil of the contactless card by the activated contactless card reader; transmitting data from the contactless card to the contactless card reader in response to energizing the coil; verifying the data transmitted by the contactless card; wirelessly interfacing the contactless card reader with the controller to arm or disarm the security system responsive to the verification by determining a transmit start time based upon a number of channels in a frequency-hop table between a current transmitting channel and an expected listening channel of the controller and an expected listening time that the controller is expected to begin listening on the expected listening channel; and wirelessly transmitting a log of access requests to the controller at predetermined intervals.
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Specification