公开(公告)号：US11069226B2

公开(公告)日：2021-07-20

申请号：US15955969

申请日：2018-04-18

Applicant: Siemens Schweiz AG

Inventor： Martin Allemann ,  Thomas Bachels ,  Aleksandar Duric ,  Erwin Suter

IPC: G08B29/26 ,  G08B29/14 ,  G08B29/20 ,  G08B17/107

Abstract: The present disclosure relates to smoke detectors. Various embodiments may include a method for adjusting a smoke detector (adjustment method) and a device executing the method for adjusting a smoke detector (adjustment device). For example, a method for automatically adjusting a smoke detector may include: placing the smoke detector in a channel; placing a reference smoke detector into the channel; applying a flowing aerosol to the channel; gathering data from the reference smoke detector reflecting the flowing aerosol; and adjusting the smoke detector based on the data gathered from the reference detector.

公开(公告)号：US09541501B2

公开(公告)日：2017-01-10

申请号：US14955101

申请日：2015-12-01

Applicant: Siemens Schweiz AG

Inventor： Martin Allemann ,  Brigitt Schmid ,  Stefan Walker

IPC: G01N21/00 ,  G01N21/53 ,  G08B17/107 ,  G08B17/113

CPC classification number: G01N21/53 ,  G01N2201/0621 ,  G01N2201/0696 ,  G08B17/107 ,  G08B17/113

Abstract: A scattered-light smoke detector includes a detector unit that operates according to the scattered-light principle. The detector unit includes a light-emitting diode (LED) to irradiate particles to be detected and a spectrally sensitive photosensor to detect the light scattered by the particles. The LED and photosensor are aligned such that a principal optical axis of the LED and a principal optical axis of the photosensor define a scattered-light angle. The LED includes a first and a second LED chip for emitting first and second light beams with light in a first wavelength range and a different second wavelength range, and an LED chip carrier arranged orthogonally to the principal optical axis. The two LED chips are arranged side-by-side on the LED chip carrier. The LED is rotated such that a chip axis extending through the two LED chips is orthogonal to an angle plane defined by the two optical axes.

Abstract translation: 散射烟雾探测器包括根据散射光原理操作的检测器单元。 检测器单元包括用于照射要检测的颗粒的发光二极管（LED）和用于检测由颗粒散射的光的光谱敏感光电传感器。 LED和光电传感器对准，使得LED的主光轴和光电传感器的主光轴定义散射光角度。 LED包括第一和第二LED芯片，用于发射具有第一波长范围和不同第二波长范围的光的第一和第二光束以及与主光轴垂直布置的LED芯片载体。 两个LED芯片并排布置在LED芯片载体上。 LED被旋转使得延伸穿过两个LED芯片的芯片轴线正交于由两个光轴限定的角度平面。

公开(公告)号：US20180308346A1

公开(公告)日：2018-10-25

申请号：US15955969

申请日：2018-04-18

Applicant: Siemens Schweiz AG

Inventor： Martin Allemann ,  Thomas Bachels ,  Aleksandar Duric ,  Erwin Suter

IPC: G08B29/26 ,  G08B29/14

CPC classification number: G08B29/26 ,  G08B17/107 ,  G08B29/145 ,  G08B29/20

Abstract: The present disclosure relates to smoke detectors. Various embodiments may include a method for adjusting a smoke detector (adjustment method) and a device executing the method for adjusting a smoke detector (adjustment device). For example, a method for automatically adjusting a smoke detector may include: placing the smoke detector in a channel; placing a reference smoke detector into the channel; applying a flowing aerosol to the channel; gathering data from the reference smoke detector reflecting the flowing aerosol; and adjusting the smoke detector based on the data gathered from the reference detector.

公开(公告)号：US20170046935A1

公开(公告)日：2017-02-16

申请号：US15236581

申请日：2016-08-15

Applicant: Siemens Schweiz AG

Inventor： Martin Allemann ,  Aleksandar Duric

IPC: G08B17/103 ,  H04B10/60 ,  H04B10/50

CPC classification number: G08B17/103 ,  G08B29/24 ,  H04B10/502 ,  H04B10/60

Abstract: An optical smoke detection unit, e.g., for a smoke detector, may include first and second light-emitting diodesfor emitting monochromatic, dichromatic or polychromatic light, an optical receiver for smoke detection, and a control unit that controls the light-emitting diodes and evaluates a receive signal output by the optical receiver for fire parameters. The light-emitting diodes may be optically coupled together such that at least one of the light-emitting diodes illuminates the other. The control unit may control one light-emitting diode in an alternating fashion and switch the other light-emitting diode to operate as a photodiode, and simultaneously detect a photoelectric current as a measure of emitted luminous flux of the controlled light-emitting diode. The control unit may deduce and output aging information from the light-emitting diode based on the reduction in the photoelectric current and/or alter the control of the light-emitting diode to correct a corresponding reduction in emitted luminous flux.

Abstract translation: 例如，用于烟雾探测器的光学烟雾检测单元可以包括用于发射单色，双色或多色光的第一和第二发光二极管，用于烟检测的光接收器，以及控制发光二极管并评估 由光接收器输出的接收信号用于消防参数。 发光二极管可以光耦合在一起，使得至少一个发光二极管照亮另一个。 控制单元可以以交替的方式控制一个发光二极管，并且切换另一个发光二极管以作为光电二极管工作，并且同时检测光电流作为受控发光二极管的发射光通量的量度。 控制单元可以基于光电流的减少来推导并输出来自发光二极管的老化信息和/或改变发光二极管的控制，以校正相应的发射光通量的减小。

公开(公告)号：US09767665B2

公开(公告)日：2017-09-19

申请号：US15236581

申请日：2016-08-15

Applicant: Siemens Schweiz AG

Inventor： Martin Allemann ,  Aleksandar Duric

IPC: G08B17/10 ,  G08B17/103 ,  G08B29/24 ,  H04B10/50 ,  H04B10/60

CPC classification number: G08B17/103 ,  G08B29/24 ,  H04B10/502 ,  H04B10/60

Abstract: An optical smoke detection unit, e.g., for a smoke detector, may include first and second light-emitting diodes for emitting monochromatic, dichromatic or polychromatic light, an optical receiver for smoke detection, and a control unit that controls the light-emitting diodes and evaluates a receive signal output by the optical receiver for fire parameters. The light-emitting diodes may be optically coupled together such that at least one of the light-emitting diodes illuminates the other. The control unit may control one light-emitting diode in an alternating fashion and switch the other light-emitting diode to operate as a photodiode, and simultaneously detect a photoelectric current as a measure of emitted luminous flux of the controlled light-emitting diode. The control unit may deduce and output aging information from the light-emitting diode based on the reduction in the photoelectric current and/or alter the control of the light-emitting diode to correct a corresponding reduction in emitted luminous flux.

公开(公告)号：US20160153905A1

公开(公告)日：2016-06-02

申请号：US14955101

申请日：2015-12-01

Applicant: Siemens Schweiz AG

Inventor： Martin Allemann ,  Brigitt Schmid ,  Stefan Walker

IPC: G01N21/53

CPC classification number: G01N21/53 ,  G01N2201/0621 ,  G01N2201/0696 ,  G08B17/107 ,  G08B17/113

Abstract: A scattered-light smoke detector includes a detector unit that operates according to the scattered-light principle. The detector unit includes a light-emitting diode (LED) to irradiate particles to be detected and a spectrally sensitive photosensor to detect the light scattered by the particles. The LED and photosensor are aligned such that a principal optical axis of the LED and a principal optical axis of the photosensor define a scattered-light angle. The LED includes a first and a second LED chip for emitting first and second light beams with light in a first wavelength range and a different second wavelength range, and an LED chip carrier arranged orthogonally to the principal optical axis. The two LED chips are arranged side-by-side on the LED chip carrier. The LED is rotated such that a chip axis extending through the two LED chips is orthogonal to an angle plane defined by the two optical axes.

Abstract translation: 散射烟雾探测器包括根据散射光原理操作的检测器单元。 检测器单元包括用于照射要检测的颗粒的发光二极管（LED）和用于检测由颗粒散射的光的光谱敏感光电传感器。 LED和光电传感器对准，使得LED的主光轴和光电传感器的主光轴定义散射光角度。 LED包括第一和第二LED芯片，用于发射具有第一波长范围和不同第二波长范围的光的第一和第二光束以及与主光轴垂直布置的LED芯片载体。 两个LED芯片并排布置在LED芯片载体上。 LED被旋转使得延伸穿过两个LED芯片的芯片轴线正交于由两个光轴限定的角度平面。