The present invention relates to radio frequency based sensing based on multiple communication technologies (476, 486). Radio frequency based sensing is performed by a single-channel communication technology (476) in order to detect sensing events. A single-channel confidence level (470) for detecting a sensing event by performing radio frequency based sensing by the single-channel communication technology (476) is determined. Upon detecting that the single-channel confidence level (470) is above a first single-channel threshold level (474) and below a second single-channel threshold level (472) which is higher than the first single-channel threshold level (474), a multi-channel communication technology (486) for performing radio frequency based sensing is selected based on one or more radio frequency system criteria, and radio frequency based sensing is performed by the multi-channel communication technology (486).

The present invention relates to radio frequency based sensing based on multiple communication technologies (476, 486). Radio frequency based sensing is performed by a single-channel communication technology (476) in order to detect sensing events. A single-channel confidence level (470) for detecting a sensing event by performing radio frequency based sensing by the single-channel communication technology (476) is determined. Upon detecting that the single-channel confidence level (470) is above a first single-channel threshold level (474) and below a second single-channel threshold level (472) which is higher than the first single-channel threshold level (474), a multi-channel communication technology (486) for performing radio frequency based sensing is selected based on one or more radio frequency system criteria, and radio frequency based sensing is performed by the multi-channel communication technology (486).

A detection system for measuring one or more conditions within a predetermined area includes a fiber harness having at least one fiber optic cable for transmitting light. The at least one fiber optic cable defines a node arranged to measure the one or more conditions. A control system is operably coupled to the fiber harness such that a signal indicative of scattered light associated with the node is transmitted to the control system. The control system analyzes the signal associated with the node in one or more of a frequency domain, time-frequency domain, time domain, and spatial domain, to determine at least one of a presence and magnitude of the condition within the predetermined area.

A detection system for measuring one or more conditions within a predetermined area includes a fiber harness having at least one fiber optic cable for transmitting light. The at least one fiber optic cable defines a node arranged to measure the one or more conditions. A control system is operably coupled to the fiber harness such that a signal indicative of scattered light associated with the node is transmitted to the control system. The control system analyzes the signal associated with the node in one or more of a frequency domain, time-frequency domain, time domain, and spatial domain, to determine at least one of a presence and magnitude of the condition within the predetermined area.

A detection system for measuring one or more conditions within a predetermined area includes a fiber harness having at least one fiber optic cable for transmitting light, the at least one fiber optic cable defining a node arranged to measure the one or more conditions. A control system is operably coupled to the fiber harness such that scattered light associated with the node is transmitted to the control system, wherein the control system analyzes the scattered light to determine at least one of a presence and magnitude of the one or more conditions at the node. An optical enhancement device is operably connected to the fiber harness or to the control system to reduce interference sources transmitted from the node.

A detection system for measuring one or more conditions within a predetermined area includes a fiber harness having at least one fiber optic cable for transmitting light, the at least one fiber optic cable defining a node arranged to measure the one or more conditions. A control system is operably coupled to the fiber harness such that scattered light associated with the node is transmitted to the control system, wherein the control system analyzes the scattered light to determine at least one of a presence and magnitude of the one or more conditions at the node. An optical enhancement device is operably connected to the fiber harness or to the control system to reduce interference sources transmitted from the node.

A detection system for measuring one or more conditions within a predetermined area includes a fiber harness having at least one fiber optic cable for transmitting light, a plurality of nodes operably connected to the at least one fiber optic cable arranged to measure one or more conditions within the predetermined area, a coupling to connect each node of the plurality of nodes to the at least one fiber optic cable, and a control system operably coupled to the fiber harness such that scattered light associated with the node is transmitted to the control system, wherein the control system analyzes the scattered light to determine at least one of a presence and magnitude of the one or more conditions at the node.

Systems and methods for operating a security system. The methods comprise: monitoring an area for a presence of an individual or vehicle using wireless signals of a first type that are received by a first radio of the security system; operating the first radio as a wireless sensor for generating sensor data; determining whether the individual or vehicle is exhibiting an unusual behavior using the sensor data and pre-programmed or machine learned patterns of unusual behavior; changing an operating frequency of the first radio when a determination is made that the individual or vehicle is exhibiting unusual behavior; and communicating a wireless signal of a second type from the first radio when the individual or vehicle is exhibiting unusual behavior, where the second type is different than the first type.

A presence alert system (24) includes a sniffer (36), controller-circuitry (38), radio frequency (RF) background data (40), and a software program (42). The sniffer is configured to sample and measure a characteristic of ambient RF signals (33) over time. The controller-circuitry includes one or more processors and one or more storage mediums. The RF background data is stored in at least one of the one or more storage mediums, and is indicative of no moving presence. The software program is stored in at least one of the one or more storage mediums, and is executed by at least one of the one or more processors. The software program is configured to evaluate the measured characteristic of the ambient RF signals, compare the measured characteristic to the RF background data, and thereby determine motion of a presence (34).

A presence alert system (24) includes a sniffer (36), controller-circuitry (38), radio frequency (RF) background data (40), and a software program (42). The sniffer is configured to sample and measure a characteristic of ambient RF signals (33) over time. The controller-circuitry includes one or more processors and one or more storage mediums. The RF background data is stored in at least one of the one or more storage mediums, and is indicative of no moving presence. The software program is stored in at least one of the one or more storage mediums, and is executed by at least one of the one or more processors. The software program is configured to evaluate the measured characteristic of the ambient RF signals, compare the measured characteristic to the RF background data, and thereby determine motion of a presence (34).