Fire system implemented with power line communications
First Claim
1. A life safety system using an electric power line communications system operatively associated with premises power distribution lines of an electric power distribution system to provide through the premises power distribution lines highly reliable communication links among modulated carrier signal receiving devices electrically coupled or located in proximity to the premises power distribution lines to convey hazardous condition alarm signals, comprising:
- multiple hazardous condition detectors adapted for placement and receiving electric power at different locations where premises power distribution lines are routed to make electric power available, each of the detectors having an identification address and producing a hazardous condition signal in response to detection of a hazardous condition in the location of the detector, the identification addresses in association with the power distribution lines contributing to establishment of communication links among the detectors;
a power line transceiver operatively associated with each detector and designed to transmit and receive over the premises power distribution lines modulated carrier signals conveying information over the communication links, the power line transceiver operating in a transmitter mode as an intentional radiator to emit the modulated carrier signals by transmitting them at a frequency band and a power level sufficient to form by electrical conduction a communication link with a modulated carrier signal receiving device that is electrically coupled to the premises power distribution lines, and to form by at least one of electrical induction a communication link by coupling across electric power distribution line phases or electromagnetic radiation a communication link with a modulated carrier signal receiving device that is located in proximity to the premises power distribution lines; and
the transceiver of each detector that produces the hazardous condition signal emitting a modulated carrier alarm signal over the premises power distribution lines for delivery to other ones of the detectors by the communication links to enable production of alarm signals at the premises locations of the detectors.
1 Assignment
0 Petitions
Accused Products
Abstract
An electric power line communication system operates with an electric power distribution system to provide through premises power distribution lines highly reliable communication links among receiving devices electrically coupled or located in proximity to the premises power distribution lines. A power line transceiver is designed to transmit and receive through the premises power distribution lines modulated carrier signals conveying information over the communication links. The power line transceiver operates in a transmitter mode as an intentional radiator to emit modulated carrier signals by transmitting them at a frequency band and a power level sufficient to form by electrical conduction a communication link with a modulated carrier signal receiving device.
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Citations
49 Claims
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1. A life safety system using an electric power line communications system operatively associated with premises power distribution lines of an electric power distribution system to provide through the premises power distribution lines highly reliable communication links among modulated carrier signal receiving devices electrically coupled or located in proximity to the premises power distribution lines to convey hazardous condition alarm signals, comprising:
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multiple hazardous condition detectors adapted for placement and receiving electric power at different locations where premises power distribution lines are routed to make electric power available, each of the detectors having an identification address and producing a hazardous condition signal in response to detection of a hazardous condition in the location of the detector, the identification addresses in association with the power distribution lines contributing to establishment of communication links among the detectors;
a power line transceiver operatively associated with each detector and designed to transmit and receive over the premises power distribution lines modulated carrier signals conveying information over the communication links, the power line transceiver operating in a transmitter mode as an intentional radiator to emit the modulated carrier signals by transmitting them at a frequency band and a power level sufficient to form by electrical conduction a communication link with a modulated carrier signal receiving device that is electrically coupled to the premises power distribution lines, and to form by at least one of electrical induction a communication link by coupling across electric power distribution line phases or electromagnetic radiation a communication link with a modulated carrier signal receiving device that is located in proximity to the premises power distribution lines; and
the transceiver of each detector that produces the hazardous condition signal emitting a modulated carrier alarm signal over the premises power distribution lines for delivery to other ones of the detectors by the communication links to enable production of alarm signals at the premises locations of the detectors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A life safety system using an electric power line communications system operatively associated with premises power distribution lines of an electric power distribution system to provide through the premises power distribution lines highly reliable communication links among modulated carrier signal receiving devices electrically coupled or located in proximity to the premises power distribution lines to convey hazardous condition alarm signals, comprising:
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multiple hazardous condition devices placed at or near different locations where premises power distribution lines are routed to make electric power available, each of the devices having an identification address and the multiple devices including one or more hazardous condition detectors, each detector producing a hazardous condition signal in response to detection of a hazardous condition in the location of the detector, the identification addresses in association with the power distribution lines contributing to establishment of communication links among the devices;
a power line transceiver operatively associated with each detector and designed to transmit and receive over the premises power distribution lines modulated carrier signals conveying information over the communication links, the power line transceiver operating in a transmitter mode as an intentional radiator to emit the modulated carrier signals by transmitting them at a frequency band and a power level sufficient to form by electrical conduction a communication link with a modulated carrier signal receiving device that is electrically coupled to the premises power distribution lines, or to form by at least one of electrical induction a communication link by coupling across electric power distribution line phases or electromagnetic radiation a communication link with a modulated carrier signal receiving device that is located in proximity to the premises power distribution lines; and
the transceiver of each detector that produces the hazardous condition signal emitting a modulated carrier alarm signal over the premises power distribution lines for delivery to other ones of the devices by the communication links to enable communication of alarm signals at the premises locations of the devices in response to detection of a hazardous condition. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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44. A life safety system using an electric power line communications system operatively associated with premises power distribution lines of an electric power distribution system to provide through the premises power distribution lines highly reliable communication links among modulated carrier signal receiving devices electrically coupled or located in proximity to the premises power distribution lines to convey hazardous condition alarm signals, comprising:
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multiple hazardous condition devices placed at or near different locations where premises power distribution lines are routed to make electric power available, each of the devices having an identification address and the multiple devices comprising one or more hazardous condition detectors that include a remote annunciator;
each detector producing a hazardous condition signal in response to detection of a hazardous condition in the location of the detector, the remote annunciator responding to the hazardous condition signal by producing a warning signal that is perceptible to an occupant in the vicinity of the remote annunciator, and the identification addresses in association with the power distribution lines contributing to establishment of communication links among the devices;
a power line transceiver operatively associated with each detector and designed to transmit and receive over the premises power distribution lines modulated carrier signals conveying information over the communication links, the power line transceiver operating in a transmitter mode to emit the modulated carrier signals by transmitting them at a frequency band and a power level sufficient to form by electrical conduction a communication link with a modulated carrier signal receiving device that is electrically coupled to the premises power distribution lines, or to form a communication link with a modulated carrier signal receiving device that is located in proximity or connected to the premises power distribution lines; and
the transceiver of each detector that produces the hazardous condition signal emitting a modulated carrier alarm signal over the premises power distribution lines for delivery to other ones of the devices by the communication links to enable communication of alarm signals at the premises locations of the devices in response to detection of a hazardous condition. - View Dependent Claims (45, 46, 47, 48, 49)
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Specification