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公开(公告)号：US12102854B2
公开(公告)日：2024-10-01
申请号：US17312621
申请日：2019-12-18
申请人： UNIVERSITY OF HAWAII
发明人： Douglas Bausch , David Askov
CPC分类号： A62C3/0271 , G08B17/12 , G08B21/10 , G08B17/00
摘要： Systems and methods are described for the global, rapid, and automatic detection of wildfire activity. Such systems and methods may also classify wildfires based on a new severity classification scheme. Wildfire activity may be tracked as wildfires migrate, grow, and combine. Additionally, because satellite systems currently collect over 4 million fire observations per year, a filtering mechanism is introduced to remove benign anthropogenic fires. To classify wildfire severity for generating alerts, the present disclosure also provides a logarithmic severity classification system based on 24-hour cumulative Fire Radiative Power (FRP).
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公开(公告)号：US20240265795A1
公开(公告)日：2024-08-08
申请号：US18636928
申请日：2024-04-16
申请人： Noah Lael Ryder
发明人： Noah Lael Ryder
CPC分类号： G08B17/12 , G01J1/4204 , G01J5/0846 , G08B17/00 , G08B29/183 , G08B29/188
摘要： One variation of a method for detecting a fire includes: during a first time period: detecting an increase in ambient light intensity and detecting an increase in ambient humidity; responsive to the increase in ambient light intensity and the increase in ambient humidity, detecting a fire event; during a second time period: correlating a decrease in ambient light intensity with an increase in visual obscuration; detecting an increase in ambient air temperature; in response to a magnitude of the increase in visual obscuration remaining below a high obscuration threshold and a magnitude of the increase in ambient temperature remaining below a high temperature threshold, classifying the fire as an incipient fire; and, in response to the magnitude of the increase in visual obscuration exceeding the high obscuration threshold and the magnitude of the increase in ambient temperature exceeding the high temperature threshold, classifying the fire as a developed fire.
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公开(公告)号：US20240249607A1
公开(公告)日：2024-07-25
申请号：US18157924
申请日：2023-01-23
摘要： A flame detector for an aircraft includes a housing and two sensors positioned in the housing to detect light signals indicative of a flame event. The two sensors include a first sensor configured to detect light signals in at a first infrared wavelength range, and a second sensor configured to detect light signals at a second wavelength range. A controller is configured to receive signals from the two sensors, and to determine the presence of the flame event only if the signals indicative of the flame event are received from both of the two sensors. A method of detecting a flame event includes providing two sensors in a detector housing. A detection area is observed via the sensors, and detection signals received from the sensors are evaluated at a controller. The presence of a flame event is determined only if detection signals are received from both of the two sensors.
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公开(公告)号：US12033483B2
公开(公告)日：2024-07-09
申请号：US17439535
申请日：2020-03-13
申请人： Firefly AB
发明人： Lennart Jansson
CPC分类号： G08B17/125 , G01J5/0018 , G06T7/70 , G08B29/046 , G08B29/18
摘要： In accordance with one or more embodiments herein, a flame detecting arrangement 100 is provided. The flame detecting arrangement 100 comprises: at least one optical flame detector 110, arranged with its field-of-view covering a predetermined area; at least one movement sensor 120, arranged together with the at least one flame detector 110; and at least one processing device 180 arranged together with the at least one flame detector 110. The at least one processing device 180 is arranged to: receive signals from the movement sensor 120; detect abnormal movement of the flame detector 110 based on these signals; and alert an operator and/or a control system 200 if abnormal movement of the flame detector 110 has been detected. This enables the field-of-view of the flame detector to be corrected to the desired, preferably the original, field-of-view.
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5.发明公开公开(公告)号：US20240184026A1
公开(公告)日：2024-06-06
申请号：US18527010
申请日：2023-12-01
发明人： Jagdishbhai U. Patel
CPC分类号： G02B5/208 , G08B17/125
摘要： An infrared imaging sensor having antireflective film coated optics for fire detection, and a fire detection device including the same are provided. An infrared imaging sensor for fire detection includes a thermopile array and an antireflective layer on the thermopile lens and configured to pass infrared radiance in a first range corresponding to fire characteristics and block infrared radiance in a second range.
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公开(公告)号：US11990017B2
公开(公告)日：2024-05-21
申请号：US17864797
申请日：2022-07-14
CPC分类号： G08B17/125 , G01J5/0018 , G08B29/043 , G08B29/20 , G01J2005/0077
摘要： Apparatuses, systems, methods, and computer program products for flame detection are provided. An example of a flame detection apparatus includes an infrared sensor to generate infrared sensor data and a thermal camera to capture one or more thermal images and generate thermal image data. The flame detection includes detecting if a flame is present in an environment based on the infrared sensor data and the thermal image data, including determining if one or more false alarms are present. The flame detection may also be based one or more spectral features or thermal features.
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公开(公告)号：US11961378B2
公开(公告)日：2024-04-16
申请号：US17870590
申请日：2022-07-21
申请人： Yongqiang Wang
发明人： Yongqiang Wang
摘要： An aspirating smoke sensing device, method, and apparatus for fire detection are provided, and the device is provided with a charger (2), a charge collector (3), a controller (4), an air intake structure (1), and a negative pressure source for air path detection (9). The air intake structure (1) is communicated with an input port of the charger (2), an output port of the charger (2) is communicated with the charge collector (3), an output port of the charge collector (3) is communicated with the negative pressure source for air path detection (9), and the controller (4) is electrically connected to the charge collector (3).
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公开(公告)号：US20240003745A1
公开(公告)日：2024-01-04
申请号：US18249100
申请日：2021-10-13
发明人： Amin Mohadjer , Michael Mehlhorn , Mario Haas
CPC分类号： G01J5/0018 , G01J1/4204 , A62C37/04 , G08B17/12
摘要： The present invention relates to an apparatus for metrological detection of a fire-like phenomenon (1), in particular a spark, flame or embers or hot particle phenomenon in a reservoir (2) through which media flows or which is loaded with media, comprising a measurement arrangement (4) configured to record measurement data, the measurement arrangement (4) comprising a first and a second measuring unit (11, 12) for the detection of electromagnetic radiation (5) emitted by the fire-like phenomenon (1) in a first or second wavelength range, respectively, optionally comprising a third measuring unit (13) for detecting ambient light (7) as well as optionally comprising a sensor unit (14) for the measurement of media-specific or environment-specific measurement data.
In order to reduce the risk of false alarms with such an apparatus and to improve the detection and risk assessment of fire-like phenomena, it is proposed to provide a checking means (8) that is adapted to check at a current time point (tA) on the basis of measurement data recorded by the measurement arrangement (4) and/or stored medium- or environment-specific characteristic data, whether an adjustment criterion (A) is satisfied, wherein if the adjustment criterion (A) is satisfied, a measurement sensitivity (M1, M2, M3) or an operating parameter (P1, P2, P3) of at least one of the measuring units (11, 12, 13) can be adjusted adequately for the situation using a control means (10).
Furthermore, a method for the metrological detection of fire-like phenomena (1) and a system for needs-based and reliable elimination of a hazardous state produced by a fire-like phenomenon is proposed with the invention.-
公开(公告)号：US20230368628A1
公开(公告)日：2023-11-16
申请号：US17829829
申请日：2022-06-01
申请人： Man-Chee LIU
发明人： Man-Chee LIU
IPC分类号： G08B13/196 , G08B17/12 , H04N5/33
CPC分类号： G08B13/196 , G08B17/125 , H04N5/33
摘要： A cigarette smoke alarm device for non-smoking space, including: a thermal image sensing unit, which includes an infrared sensing array for sensing a thermal image in a non-smoking space; and an image processing circuit coupled with the thermal image sensing unit to receive the thermal image, the image processing circuit including a control unit, a memory and a communication interface, and the control unit being coupled with the memory and the communication interface, where the memory is used to store the thermal image, and the control unit is used for performing a smoke image evaluation operation on the thermal image to generate a detection result of a smoking event, and transmitting a data signal representing the detection result to an external device through the communication interface.
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公开(公告)号：US11727778B2
公开(公告)日：2023-08-15
申请号：US17532035
申请日：2021-11-22
CPC分类号： G08B17/125 , G06F13/1668 , G08B29/20 , G08B29/04
摘要： A thermographic detector device for a fire alarm control system is described herein. In some examples, one or more embodiments include a thermography camera configured to capture a thermal image within a field of view of the thermographic detector device, a memory and a processor to execute instructions stored in the memory to detect a fault associated with the thermographic detector device, wherein the fault includes at least one of a field of view fault, an operating parameter fault, and an internal fault, generate a fault signal upon detecting the fault, and provide a notification of the fault using the fault signal.
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