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1.发明公开
公开(公告)号：EP4451244A1
公开(公告)日：2024-10-23
申请号：EP23168648.6
申请日：2023-04-19
申请人： Robert Bosch GmbH
IPC分类号： G08B29/04
摘要： The invention relates to an aspirating smoke detector (1) comprising a smoke detection unit (8), an aspiration unit (9) and a sampling pipe (2) having a detection-side end (2a), a detection-remote end (2b) and sampling holes (3) between the detection-side end (2a) and the detection-remote end (2b), wherein the aspirating smoke detector (1) is arranged to suck air through the sampling holes (3) into the sampling pipe (2) in the direction of the detection-side end (2a) by means of the aspiration unit (9) and to supply it to the smoke detection unit (8), comprising a differential pressure sensor arrangement (10) configured to determine at least one differential pressure value between a first measuring site (10a) and a second measuring site (10b), the first measuring site (10a) being inside the sampling pipe (2), and the second measuring site (10b) being outside of the sampling pipe (2) or being inside the sampling pipe (2) and remotely from the first measuring site (10a). The invention further relates to a method of monitoring an aspirating smoke detector (1), with determining at least one differential pressure value by means of a differential pressure sensor arrangement (10), comparing the least one differential pressure value with a threshold pressure value, and detecting a fault of the aspirating smoke detector (1) when the at least one differential pressure value exceeds the threshold pressure value, or falls below the pressure value, respectively.
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公开(公告)号：EP4404166A2
公开(公告)日：2024-07-24
申请号：EP24180924.3
申请日：2021-10-28
IPC分类号： G08B29/04
CPC分类号： G08B29/145 , G08B29/043 , G08B17/107
摘要： Devices, methods, and systems of a self-testing duct environment detector are described herein. One self-testing duct environment detector system includes a first portion to be mounted outside of a duct, the first portion having a detector housing with a space therein, the space having a detector with a sensing chamber and a self-testing sensing apparatus therein, wherein the self-testing sensing apparatus determines whether airflow through the detector housing is above a threshold and a second portion and third portion each configured to extend into the duct, wherein the second portion has at least one inlet aperture formed therein and wherein the third portion has at least on outlet aperture therein.
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公开(公告)号：EP4303844A1
公开(公告)日：2024-01-10
申请号：EP22762845.0
申请日：2022-01-25
发明人： KISHIDA, Kohei , FUKUDA, Masashi
摘要： An alarm system includes: a plurality of detectors; and a control device 200 capable of communicating with each of the plurality of detectors. The control device 200 includes a reception unit 212 and an output unit 250. The reception unit 212 receives, from each of the plurality of detectors, information on year/month of manufacture indicating a year and a month when the detector is manufactured and information on year/month of installation indicating a year and a month when the detector is installed. The output unit outputs a notification related to at least one of a time of maintenance or a time of replacement when at least one of the year/month of manufacturer or the year/month of installation received by the reception unit 212 reaches a notification deadline.
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公开(公告)号：EP3999967B1
公开(公告)日：2023-12-27
申请号：EP20840074.7
申请日：2020-07-14
发明人： HUTZ, David James , BEACH, Allison , YIN, Weihong , MADDEN, Donald Gerard , GORDON, Adam , BERG, Benjamin Asher , SILVERMAN, Christopher , FARACI, Donald
IPC分类号： G06F11/00 , G08B13/196 , G08B29/04 , G06V20/52
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6.发明公开
公开(公告)号：EP4276787A1
公开(公告)日：2023-11-15
申请号：EP23170396.8
申请日：2023-04-27
摘要： A sensor walk-test may be streamlined by storing an expected behavior of sensor events. The sensor event data is then compared to the expected behavior of sensor events in order to determine which of the plurality of sensors need a sensor walk-test to verify proper operation of the sensor and which of the plurality of sensors do not need a sensor walk-test. A listing of which of the plurality of sensors are determined to need a sensor walk-test to verify proper operation of the sensor is displayed on a display of a user device. Communication testing may be streamlined in a similar manner.
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公开(公告)号：EP3503059B1
公开(公告)日：2023-07-12
申请号：EP17382882.3
申请日：2017-12-21
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公开(公告)号：EP3752996B1
公开(公告)日：2023-05-31
申请号：EP19711418.4
申请日：2019-02-14
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公开(公告)号：EP4174814A1
公开(公告)日：2023-05-03
申请号：EP21204785.6
申请日：2021-10-26
IPC分类号： G08B29/04 , G08B13/193
摘要： A motion detector (1) for a security system comprises a primary sensing system including a PIR sensor (5) configured to detect movement of a person within a monitored environment (2), and an ancillary sensing system including a first emitter (7), a second emitter (8) and a receiver (9) configured to detect masking of the primary sensing system.
Masking by an object (10) in the monitored environment (2) is determined using the first emitter (7) and the receiver (9) based on a time-of-flight of an optical signal emitted into the monitored environment (2) and reflected by the object (10). Masking by obscuring of a window (4) of the motion detector (1) is determined using the second emitter (8) and the receiver (9) based on the intensity of light transmission from the second emitter (8) through the window (4) to the receiver (9).-
公开(公告)号：EP4174812A1
公开(公告)日：2023-05-03
申请号：EP22212657.5
申请日：2020-03-11
IPC分类号： G08B17/113 , G08B29/04 , G08B17/10 , G08B29/14 , G08B29/18
摘要： A detector is for ultrasonic detection of objects or distances for applications such as object positioning, tracking or guidance such as vehicle parking/positioning sensors, robotic equipment movement controllers, materials handling equipment, presence detectors for equipment such as detection of items on a conveyor in a manufacturing environment, or surveying equipment. An ultrasonic transducer (16) is mounted to have a field of emission outside of the detector, and through ambient air, and a processor (19) monitors ultrasonic return values and processes them to determine object presence and/or distance data, and to detect ambient air instability either before or as part of a detection operation. The processor records a return signal amplitude value for each sample point, and quantifies variance across the values, and if the variance exceeds a threshold it determines that there is excessive ambient air instability for accurate detection. The detector may be incorporated in an alarm device (1), in which it is used to determine if an obstacle has been placed in a position to block flow of air to the sensor such as a smoke sensor.
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