公开(公告)号：US09913353B1

公开(公告)日：2018-03-06

申请号：US15375955

申请日：2016-12-12

Applicant: Crestron Electronics, Inc.

Inventor： Evan Ackmann ,  Russikesh Kumar

IPC: H05B37/02 ,  H04L12/28 ,  H05B33/08 ,  G08B21/18

CPC classification number: H05B37/0272 ,  H04L12/2827 ,  H05B33/0854

Abstract: A lighting control system for operating lighting in a room is provided. The lighting control system may comprise a load controller, sensors, and battery powered lighting control devices, such as switches, dimmers, and/or keypads. The load controller is configured for controlling the operation of a lighting load in response to messages received from the lighting control devices and sensors over a wireless network. The battery operated lighting control device is configured for detecting a low battery level, transmitting a low battery message to the load controller, and entering into a low battery mode during which it ceases transmitting any messages to the load controller until the battery is replaced. In response to the low battery message received from at least one lighting control device, the load controller is configured for entering into a low battery mode during which it maintains the lighting load turned on. The load controller is configured for exiting the low battery mode and resuming normal operation upon receipt of a subsequent message from the at least one lighting control device.

公开(公告)号：US20180202224A1

公开(公告)日：2018-07-19

申请号：US15864523

申请日：2018-01-08

Applicant: Crestron Electronics, Inc.

Inventor： Russikesh Kumar

IPC: E06B9/44 ,  E06B9/72 ,  H02S40/38 ,  H02S99/00 ,  H02S40/32 ,  H02J7/35 ,  H02J7/00

CPC classification number: E06B9/44 ,  E06B9/42 ,  E06B9/72 ,  E06B2009/2476 ,  E06B2009/6809 ,  H02J7/0054 ,  H02J7/35 ,  H02S40/32 ,  H02S40/38 ,  H02S99/00

Abstract: A battery powered roller shade, comprising: a shade made of suitable shade fabric or other material; a roller tube, around which can be rolled the shade, the roller tube configured to contain a motor housing, drive wheel, and user interface switches, the motor housing including a motor configured to drive the tube to wind the shade onto the roller tube, and to unwind the shade off of the roller tube; a hembar located at a lowermost position of the shade and configured to maintain tautness in the shade, the hembar configured to house a primary power source that powers the motor; and at least two electrical conductors interwoven in the shade to provide current to the motor by the primary power source.

公开(公告)号：US09854653B1

公开(公告)日：2017-12-26

申请号：US15420818

申请日：2017-01-31

Applicant: Crestron Electronics, Inc.

Inventor： Evan Ackmann ,  Douglas Jacobson ,  Russikesh Kumar

IPC: H05B37/02 ,  H04W84/18 ,  H04W88/16 ,  H04W4/00 ,  F21V23/04

CPC classification number: H05B37/0272 ,  F21V23/04 ,  H04W4/80 ,  H04W84/18 ,  H04W88/16 ,  H05B37/0218 ,  H05B37/0227

Abstract: A scalable lighting control system comprising a plurality of room lighting control systems each comprising a load controller electrically connected to a lighting load and one or more in-room devices, such as lighting control devices, occupancy sensors, and light sensors. Each in-room device is configured for transmitting room control messages to the load controller over a room wireless network. The scalable lighting control system further comprises a plurality of network bridges each configured for removably coupling to at least one load controller of a room lighting control system to connect the room lighting control system to a centralized wireless network. Each network bridge is configured for receiving centralized control messages over the centralized wireless network and transmitting the centralized control messages to the connected load controller. The load controller is configured for controlling the electrically connected lighting load in response to the room control messages and the centralized control messages.

公开(公告)号：US09746371B1

公开(公告)日：2017-08-29

申请号：US15403319

申请日：2017-01-11

Applicant: Crestron Electronics, Inc.

Inventor： Russikesh Kumar

IPC: H05B37/02 ,  G01J1/44 ,  H05B33/08 ,  G01J1/42

CPC classification number: G01J1/4204 ,  G01J1/0228 ,  G01J1/18 ,  G01J1/32 ,  G01J2001/444 ,  H05B33/0854 ,  H05B37/0218 ,  H05B37/0227 ,  H05B37/0272 ,  Y02B20/46

Abstract: A method and a lighting control system for automatically determining a calibration curve for use in daylight harvesting applications. The lighting control system comprises a light sensor configured for recording light levels and a load controller configured for provide a dimmed output to a lighting load. The calibration curve comprises a calibration slope (SC) defined by a calibration coordinate (CC) and a night coordinate (CN). The calibration coordinate (CC) comprises a calibration dimming level (DC) set by a user and a calibration light level (LC) recorded by the light sensor when the lighting load is set to the calibration dimming level (DC). The night coordinate (CN) comprises a night scene dimming level (DN) and a night scene light level (LN), wherein the night scene light level (LN) comprises a difference between a sunlight plus night scene light level (LNS) recorded by the light sensor when the lighting load is set to the night scene dimming level (DN) and a sunlight level (LS) recorded by the light sensor when the lighting load is turned off.

公开(公告)号：US09681514B1

公开(公告)日：2017-06-13

申请号：US15336381

申请日：2016-10-27

Applicant: Crestron Electronics, Inc.

Inventor： Russikesh Kumar

IPC: G05F1/00 ,  H05B33/08

CPC classification number: H05B33/0815

Abstract: A lighting dimmer circuit that provides sinking and sourcing current outputs. The sinking and sourcing dimmer circuit may comprise first and second amplifiers, first and second NPN transistors, and first and second independent feedback loops. The dimmer is configured for providing a variable output voltage signal (Vout) to a sinking load or a sourcing load. When the output voltage signal (Vout) is coupled to a sinking load, current flows from a positive power supply (Vpos), through the first NPN transistor, and to the sinking load. When the output voltage signal (Vout) is coupled to a sourcing load, current flows from the sourcing load, through the second NPN transistor, and to the ground. In addition to the independent feedback loops, the gain of second amplifier may be greater than the gain of the first amplifier to ensure there is no undesired contention between the first and the second NPN transistor.

公开(公告)号：US20170160428A1

公开(公告)日：2017-06-08

申请号：US15442276

申请日：2017-02-24

Applicant: Crestron Electronics, Inc.

Inventor： Russikesh Kumar

IPC: G01V11/00

CPC classification number: G01V11/00 ,  H05B37/0218 ,  H05B37/0227 ,  H05B37/0236 ,  H05B37/0245 ,  Y02B20/40 ,  Y02B20/46

Abstract: An occupancy sensor detects the occupancy state of a monitored area. The occupancy sensor may be mounted in a standard junction box at various angles and one or more of the ultrasonic sensors may be disabled. The occupancy sensor includes a PIR sensor and one or more ultrasonic sensors. The sensor sensitivities and timeout settings may be programmed by a technician or user via an IR interface or via a network interface. The settings may be changed according to control system logic or some other factor such as date, time or room conditions. Setup of the sensor may also be performed via the IR interface or network interface. The occupancy outputs both a signal taking into account the timeout period as well as a raw data signal. The IR interface may be used to relay messages between a control system and external devices. Algorithms employed in the occupancy sensor allow for the occupancy sensor to process analog signals from sensors to determine the room state, enhance performance such as by reducing false trips, enhance energy savings and force sensors into vacancy or occupancy mode. The occupancy sensor additionally comprises a microphone. Sound can be required to qualify detection from another sensor and may be employed to prolong the occupancy state once it is established.

公开(公告)号：US10070505B2

公开(公告)日：2018-09-04

申请号：US15797689

申请日：2017-10-30

Applicant: Crestron Electronics, Inc.

Inventor： Evan Ackmann ,  Douglas Jacobson ,  Russikesh Kumar

IPC: H05B37/02 ,  F21V23/04 ,  H04W88/16 ,  H04W84/18 ,  H04W4/80

CPC classification number: H05B37/0272 ,  F21V23/04 ,  H04W4/80 ,  H04W84/18 ,  H04W88/16 ,  H05B37/0218 ,  H05B37/0227 ,  Y02B20/46

Abstract: A scalable building control system comprising a plurality of network bridges and plurality of zone control systems each comprising one or more zone control devices and a load controller. Each zone control device is adapted to generate and transmit load control messages over a zone wireless network. The a load controller is adapted to receive the load control messages over the zone wireless network and control an electrically connected load device in response to the load control messages. Each of the plurality of network bridges is adapted to removably couple to at least one load controller of a zone wireless network to connect the zone control system as a node of a centralized wireless network. The network bridge is further adapted to transmit messages between the centralized wireless network and a connected load controller.

公开(公告)号：US10007025B2

公开(公告)日：2018-06-26

申请号：US15442276

申请日：2017-02-24

Applicant: Crestron Electronics, Inc.

Inventor： Russikesh Kumar

IPC: G01V11/00

CPC classification number: G01V11/00 ,  H05B37/0218 ,  H05B37/0227 ,  H05B37/0236 ,  H05B37/0245 ,  Y02B20/40 ,  Y02B20/46

Abstract: An occupancy sensor detects the occupancy state of a monitored area. The occupancy sensor may be mounted in a standard junction box at various angles and one or more of the ultrasonic sensors may be disabled. The occupancy sensor includes a PIR sensor and one or more ultrasonic sensors. The sensor sensitivities and timeout settings may be programmed by a technician or user via an IR interface or via a network interface. The settings may be changed according to control system logic or some other factor such as date, time or room conditions. Setup of the sensor may also be performed via the IR interface or network interface. The occupancy outputs both a signal taking into account the timeout period as well as a raw data signal. The IR interface may be used to relay messages between a control system and external devices. Algorithms employed in the occupancy sensor allow for the occupancy sensor to process analog signals from sensors to determine the room state, enhance performance such as by reducing false trips, enhance energy savings and force sensors into vacancy or occupancy mode. The occupancy sensor additionally comprises a microphone. Sound can be required to qualify detection from another sensor and may be employed to prolong the occupancy state once it is established.

公开(公告)号：USD792360S1

公开(公告)日：2017-07-18

申请号：US29576611

申请日：2016-09-06

Applicant: Crestron Electronics, Inc.

Designer： Stan Wisniewski ,  Russikesh Kumar

公开(公告)号：US10080273B1

公开(公告)日：2018-09-18

申请号：US15812302

申请日：2017-11-14

Applicant: Crestron Electronics, Inc.

Inventor： Benjamin Slivka ,  Russikesh Kumar

IPC: H05B37/02 ,  H02H7/20 ,  H02M5/293

CPC classification number: H05B37/0227 ,  H02H7/20 ,  H02H9/04 ,  H02M1/32 ,  H02M5/293 ,  H02M2005/2935 ,  H05B39/044

Abstract: A dimmer circuit for detecting a connected load type comprising a controller, a plurality of dimming transistors adapted to provide a dimmed hot output signal to a load, and a current sensor adapted to sense current levels of the dimmed hot output signal. The controller is adapted to store at least one load type current parameter associated with a dimming mode. The controller is further adapted to generate an asymmetric forward phase transistor drive signal with half cycles of one polarity having incrementally increasing dimming levels to drive the plurality of dimming transistors. The controller receives current levels from the current sensor and determines whether at least one of the received current levels satisfies at least one stored current parameter. When at least one current level satisfies at least one current parameter, the controller sets the dimmer to operate in a dimming mode associated with the satisfied current parameter. When the received current levels do not satisfy the stored at least one load type current parameter, the controller sets the dimmer to operate in a default dimming mode. The at least one current parameter may define one or more current events associated with a load type, such as an inrushing current event, double peaked current event, a lagging current event, or a substantially non-ratiometric current rise.