Security system with programmable sensor and user data input transmitters
First Claim
1. A security system comprising:
- (a) a plurality of transducers, each transducer operable to detect an alarm condition;
(b) a plurality of radio frequency transmitters, each integrally connected to one of said transducers for transmitting encoded status messages including unique transducer identification data and the alarm state of its associated transducer, and wherein each transmitter includes;
(i) means for storing transmitter identification data and ones of a plurality of message preconditioning parameters peculiar to each transmitter'"'"'s associated transducer, and(ii) means for responsively monitoring its associated transducer'"'"'s alarm state relative to its programmed preconditioning parameters and transmitting an alarm message upon the confirmation of a valid change in state; and
(iii) means for pulse position encoding each status message into a plurality of constant duration data frames, each including a shorter duration data pulse of a constant duration from frame to frame at an encoded time displacement therein;
(c) means for serially programming each transmitter'"'"'s storage means with its identification data and those preconditioning parameters appropriate to the type of transducer coupled thereto; and
(d) system controller means responsive to status messages from each of said transmitters for decoding received messages and alerting off-site monitoring means with the occurence of ones of said messages.
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Accused Products
Abstract
A family of serially programmable integrated circuit transmitters for use in various sensor and user data input transmitters of a short-range radio frequency linked security system. Each transmitter transmits two bits of data for each data frame of a pulse position encoded message format with multiples of each message being transmitted with each transmission, the number of messages depending upon the type of message. Each user data input transmitter includes means for decoding keyboard entered data, re-circulating means for storing the user entered data and programmed system parameters and means for time partitioning intra and inter-message transmissions. Each sensor transmitter includes means for storing uniquely programmed system preconditioning parameters, means for sensing and verifying alarm conditions and means for time partitioning intra and inter-message transmissions. A hand-held programming unit permits the programming of each user data input and sensor transmitter with a variety of system pre-conditioning parameters to identify the transmitter to a system controller and the type of transducer coupled to the sensor transmitter.
179 Citations
35 Claims
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1. A security system comprising:
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(a) a plurality of transducers, each transducer operable to detect an alarm condition; (b) a plurality of radio frequency transmitters, each integrally connected to one of said transducers for transmitting encoded status messages including unique transducer identification data and the alarm state of its associated transducer, and wherein each transmitter includes; (i) means for storing transmitter identification data and ones of a plurality of message preconditioning parameters peculiar to each transmitter'"'"'s associated transducer, and (ii) means for responsively monitoring its associated transducer'"'"'s alarm state relative to its programmed preconditioning parameters and transmitting an alarm message upon the confirmation of a valid change in state; and (iii) means for pulse position encoding each status message into a plurality of constant duration data frames, each including a shorter duration data pulse of a constant duration from frame to frame at an encoded time displacement therein; (c) means for serially programming each transmitter'"'"'s storage means with its identification data and those preconditioning parameters appropriate to the type of transducer coupled thereto; and (d) system controller means responsive to status messages from each of said transmitters for decoding received messages and alerting off-site monitoring means with the occurence of ones of said messages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. In a security system apparatus operable by a system user for programming the response of a system controller responsive to a plurality of distributed transducers and associated radio frequency transmitters, each transmitting encoded status messages, including identification data and the transducer alarm state, said apparatus comprising:
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(a) a data entry keyboard having a plurality of keys; (b) means for decoding which and the number of times each of said keys are depressed; (c) register means for serially storing programmed identification data and decoded key stroke data; (d) means for pulse position encoding the contents of said register means into a plurality of constant duration data frames, each including a shorter duration data pulse of a constant duration from frame to frame at an encoded time displacement therein and into a user message; (e) means for repetitively transmitting at radio frequencies each pulse position encoded user message to said system controller, wherein the particular number of message transmissions is prioritized relative to the type of entered message and said system controller includes means responsively setting ones of its operating parameters relative thereto; and (f) means detachably coupling to said apparatus for selectively programming said register with unique identification data. - View Dependent Claims (17, 18, 19)
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20. In a security system having a plurality of distributed transducers, each monitoring an alarm condition, at least one transmitter integrally coupled to one of said transducers for communicating the status thereof to a system controller comprising:
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(a) means for monitoring the state of said transducer; (b) first means for storing ones of a plurality of programmed message preconditioning parameters peculiar to said transducer; (c) second means for storing transmitter identification data and transducer status data; (d) means for pulse position encoding the contents of said second means into a plurality of constant duration data frames, each including a shorter duration data pulse of a constant duration from frame to frame at an encoded time displacement therein; (e) means responsive to changes in transducer state relative to ones of said preconditioning parameters and the occurrence of conditions defined by others of sald preconditioning parameters for repetitively transmitting said pulse position encoded radio frequency status messages, each message including said identification data, transducer alarm transition data and transducer current status data, a proioritized number of times, the specific number depending upon the type of event inducing the transmission. - View Dependent Claims (21)
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22. In a security system including a plurality of distributed transducers operable to detect environmental alarm conditions and an on-site system controller monitoring status information from each of said transducers, improved apparatus for reporting at least one transducer'"'"'s alarm status to said system controller, the improvement comprising, a short range radio frequency transmitter connected to one of said transducers and including means for transmitting status messages including identification data and the alarm state of its associated transducer, said transmitter further including:
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(a) electrically programmable means for storing said identification data and a plurality of message preconditioning parameters peculiar to said transmitter'"'"'s associated transducer; and (b) means responsive to changes in transducer state relative to ones of said preconditioning parameters and the occurrences of conditions defined by others of said preconditioning parameters for transmitting encoded status messages to said system controller in response to selected ones of detected changes and conditions other than an alarm state change. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification