公开(公告)号：US20190287366A1

公开(公告)日：2019-09-19

申请号：US16349177

申请日：2017-11-09

Applicant: Carrier Corporation

Inventor： Michael J. Birnkrant ,  Jennifer M. Alexander ,  Peter R. Harris ,  Jie Xi ,  Hui Fang ,  Yanzhi Chen

IPC: G08B17/107 ,  G08B17/06 ,  G08B25/01 ,  H04B10/116 ,  G08B17/113 ,  G08B29/18 ,  G08B13/186

Abstract: A control system of a detection system for measuring one or more conditions within a predetermined area includes a control unit having at least one processor for implementing an algorithm and a fiber harness having at least one fiber optic cable for transmitting light, the at least one fiber optic cable defining at least one node arranged to measure the one or more conditions. A sensor is operably coupled to the at least one node, wherein the sensor receives scattered light associated with the at least one node and generates signals corresponding to the scattered light. A switch is operably coupled to the sensor and to the control unit. The switch selectively provides signals from the sensor to the control unit for processing to determine at least one of a presence and magnitude of the condition within the predetermined area.

公开(公告)号：US20190287365A1

公开(公告)日：2019-09-19

申请号：US16349174

申请日：2017-11-09

Applicant: Carrier Corporation

Inventor： Michael J. Birnkrant ,  David L. Lincoln ,  Jennifer M. Alexander ,  Peter R. Harris

IPC: G08B17/107 ,  G08B13/187 ,  G08B17/06

Abstract: 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 scattered light associated with the node is transmitted to the control system. 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.

公开(公告)号：US20190251816A1

公开(公告)日：2019-08-15

申请号：US16310622

申请日：2017-06-15

Applicant: Carrier Corporation

Inventor： Hui Fang ,  Jie Xi ,  Peter R. Harris ,  Vivek Venugopalan ,  David L. Lincoln

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

CPC classification number: G08B17/107 ,  G01N21/53 ,  G01N2201/062 ,  G08B17/113 ,  G08B21/182

Abstract: A system and method of detecting smoke including establishing a baseline measurement for each of at least three over-lapping sensing volumes; comparing a measured reading within each of the at least three sensing volumes and the baseline measurements to determine whether the measured reading is within a sensing threshold, and annunciating a warning signal if the difference is outside the sensing threshold.

公开(公告)号：US12222449B2

公开(公告)日：2025-02-11

申请号：US17054431

申请日：2019-05-06

Applicant: Carrier Corporation

Inventor： Suman Dwari ,  Rajiv Ranjan ,  Peter R. Harris

IPC: G01S7/481 ,  G01N21/53 ,  G01N33/00 ,  G01S7/497 ,  G01S17/89 ,  G02B27/00 ,  G08B17/107 ,  H02N2/10 ,  H10N30/857

Abstract: A scanner of an optical detection system includes a housing, an optical surface coupled to the housing, and an actuator coupled to the optical surface. The optical surface is movable to direct light into an area being scanned and to receive a reflected light pulse from the area being scanned. The actuator is operable to agitate the optical surface to remove debris from the optical surface.

公开(公告)号：US20220180721A1

公开(公告)日：2022-06-09

申请号：US17682467

申请日：2022-02-28

Applicant: Carrier Corporation

Inventor： David L. Lincoln ,  Jennifer M. Alexander ,  Peter R. Harris ,  Michael J. Birnkrant

IPC: G08B17/107 ,  G01N21/53

Abstract: A method of operating a detection system includes switching the system from a normal mode for sensing smoke to a high sensitivity mode for sensing airborne particles, such that in the high sensitivity mode the detection system is configured to discriminate between particles of diameters less than 2.5 micrometers and 10 micrometers. Transmitting light from one or more light sources of the detection system into a monitored space, and detecting scattered light at one or more light sensing devices of the detection system. The detection of scattered light is indicative of one or more indoor air quality conditions in the monitored space.

公开(公告)号：US11293865B2

公开(公告)日：2022-04-05

申请号：US16349502

申请日：2017-11-08

Applicant: Carrier Corporation

Inventor： Michael J. Birnkrant ,  David L. Lincoln ,  Jennifer M. Alexander ,  Peter R. Harris

IPC: G01N21/49 ,  G01D5/353 ,  G01N21/35 ,  G01N21/47 ,  G01N21/65 ,  G01N21/77

Abstract: 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 one or more conditions within the predetermined area. 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 light transmitted from the node by comparing multiple wavelengths of scattered light to determine at least one of a presence and magnitude of the one or more conditions at the node.

公开(公告)号：US11151853B2

公开(公告)日：2021-10-19

申请号：US16349181

申请日：2017-11-09

Applicant: Carrier Corporation

Inventor： Michael J. Birnkrant ,  Jennifer M. Alexander ,  Alan Matthew Finn ,  Yanzhi Chen ,  Jie Xi ,  Peter R. Harris

IPC: G08B17/107 ,  G08B13/12 ,  G08B13/186 ,  G08B17/06 ,  G08B17/113 ,  G08B29/18 ,  G08B13/187

Abstract: A detection system for measuring one or more condition 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 light source is coupled to the at least one fiber optic cable for emitting a modulated light to the node. The modulated light is transmitted into the predetermined area. A light sensitive device is coupled to the at least one fiber optic cable for receiving scattered light associated with the node. A control unit is operably coupled to the light source and to the light sensitive device to determine at least one of a presence and magnitude of the one or more conditions within the predetermined area.

公开(公告)号：US11087605B2

公开(公告)日：2021-08-10

申请号：US16310622

申请日：2017-06-15

Applicant: Carrier Corporation

Inventor： Hui Fang ,  Jie Xi ,  Peter R. Harris ,  Vivek Venugopalan ,  David L. Lincoln

IPC: G08B17/107 ,  G01N21/53 ,  G08B17/113 ,  G08B21/18

Abstract: A system and method of detecting smoke including establishing a baseline measurement for each of at least three overlapping sensing volumes; comparing a measured reading within each of the at least three sensing volumes and the baseline measurements to determine whether the measured reading is within a sensing threshold, and annunciating a warning signal if the difference is outside the sensing threshold.

公开(公告)号：US20210241594A1

公开(公告)日：2021-08-05

申请号：US17057003

申请日：2019-07-02

Applicant: Carrier Corporation

Inventor： Michael J. Birnkrant ,  Hector Ortiz Valencia ,  Marcin Piech ,  Michael T. Gorski ,  Peter R. Harris

IPC: G08B17/107 ,  G08B25/12 ,  G08B26/00 ,  G01N21/53

Abstract: A system for measuring a status of a detection device having a component transformable between a plurality of configurations includes a fiber optic cable for transmitting light. The at least one fiber optic cable defines a node arranged in communication with the component. A control system is operably coupled to the fiber optic cable such that scattered light reflected from the component and returned to the node is transmitted to the control system. The control system analyzes the scattered light to determine the configuration of the component.

公开(公告)号：US20210231619A1

公开(公告)日：2021-07-29

申请号：US17053864

申请日：2019-05-08

Applicant: CARRIER CORPORATION

Inventor： David L. Lincoln ,  Michael J. Birnkrant ,  Peter R. Harris ,  Marcin Piech ,  Arthur Blanc ,  Jose-Rodrigo Castillo-Garza

IPC: G01N29/24 ,  G01N29/02 ,  G02B5/00

Abstract: A photoacoustic detection system (20) includes a detector (22) that has a chamber (24), a pulsed light source (26), piezoelectric tuning forks (28), and a photosensor (30). The chamber has an inlet and an outlet for flow of an analyte. The pulsed light source is adjacent the chamber and is operable to emit a light beam along a path through the chamber. The tuning forks are arranged along the path, and each of the tuning forks is operable to emit first sensor signals. The photosensor is arranged along the path and is operable to emit second sensor signals. A controller (38) is connected to receive the first and second sensor signals. The controller is configured to determine whether a target species is present in the analyte based on the first sensor signals and determine whether the target species is present in the analyte based on the second sensor signals.