System and method for monitoring the presence of a person in a monitored area
First Claim
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1. A system for monitoring the presence of a subject in a monitored area, comprising:
- a passive radiometric sensor that detects radiation emitted from a subject in a predetermined monitored area in a predetermined frequency range between 1 GHz and 100 THz and that generates a radiation signal from the detected radiation,a radiation signal processor that processes said radiation signal to determine whether the subject is present in the predetermined monitored area and that generates, based on said processed radiation signal, a monitoring signal indicating the presence or absence of the subject in said monitored area, andan application controller that controls an application to provide a predetermined response when said monitoring signal indicates that the subject is not present,wherein said radiation signal processor generates said monitoring signal based on a comparison between said radiation signal, generated from an amount of radiation detected over a predetermined time, and a threshold determined at least during installation of the system.
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Abstract
A system and a corresponding method for monitoring the presence of a person in a monitored area, includes a passive radiometer that detects radiation emitted from a predetermined monitored area in a predetermined frequency range between 1 GHz and 100 THz and that generates a radiation signal from the detected radiation, a radiation signal processor that processes the radiation signal and that generates, based on the processed radiation signal, a monitoring signal indicating the presence or absence of a person in the monitored area, and an application controller that controls an application based on the monitoring signal.
18 Citations
18 Claims
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1. A system for monitoring the presence of a subject in a monitored area, comprising:
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a passive radiometric sensor that detects radiation emitted from a subject in a predetermined monitored area in a predetermined frequency range between 1 GHz and 100 THz and that generates a radiation signal from the detected radiation, a radiation signal processor that processes said radiation signal to determine whether the subject is present in the predetermined monitored area and that generates, based on said processed radiation signal, a monitoring signal indicating the presence or absence of the subject in said monitored area, and an application controller that controls an application to provide a predetermined response when said monitoring signal indicates that the subject is not present, wherein said radiation signal processor generates said monitoring signal based on a comparison between said radiation signal, generated from an amount of radiation detected over a predetermined time, and a threshold determined at least during installation of the system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for causing a system to monitor presence of a subject in a monitored area, comprising:
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detecting, with a passive radiometric sensor, radiation emitted from a subject in a predetermined monitored area in a predetermined frequency range between 1 GHz and 100 THz; generating a radiation signal from the detected radiation; processing, with a radiation processor, said radiation signal to determine whether the subject is present in the predetermined monitored area and generating, based on a comparison between said radiation signal, generated from an amount of radiation detected over a predetermined time, and threshold signals, a monitoring signal indicating the presence or absence of the subject in the monitored area, the threshold signals being determined at least during installation of the system, and controlling, with an application processor, an application to provide a predetermined response when said monitoring signal indicates that the subject is not present in the monitored area. - View Dependent Claims (18)
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Specification