# US 11,122,663 B2 · Monitoring lighting > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,122,663 B2 - Document ID: US11122663B2 - Status: Granted - Kind: B2 - Application number: 16/345,967 - Filed: 2017-10-18 - Published: 2020-02-20 - Granted: 2021-09-14 - Earliest claimed: 2016-10-28 - Assignees: Signify Holding B.V. - Applicants: Signify Holding B.V. - Inventors: Harald Josef Günther Radermacher; Peter Deixler - Web page: https://patentgrep.com/patent/US11122663B2 ## CPC - H05B 45/357: specially adapted for retrofit LED light sources - H05B 45/50: responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits - F21Y 2105/10: comprising a two-dimensional [2D] array of point-like light-generating elements - F21Y 2115/10: Light-emitting diodes [LED] - Y02B 20/30: Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED] - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A method of determining the power consumption of a lighting device, the lighting device comprising a lamp unit for emitting illumination to illuminate a space, and a powering device which supplies an electrical power signal to power the lamp unit to emit said illumination. The method comprises: storing power consumption data of a plurality of types of powering device under different lamp unit loading conditions; at the lamp unit, determining a type of the powering device to which the lamp unit is coupled; at the lamp unit, determining an operating status of the lamp unit; determining the corresponding power consumption of the powering device from the stored power consumption data, based on the determined type of powering device, and the operating status of the lamp; and calculating the total power consumption of the lighting device as the sum of the power consumption of the powering device and the lamp unit. ## Claims ### Claim 1 A method of determining power consumption of a lighting device, the lighting device comprising a lamp unit for emitting illumination to illuminate a space, wherein the lamp unit comprises a plurality of individually-controllable LEDs operating according to color information and/or hue information, and a powering device which supplies an electrical power signal to power the lamp unit to emit said illumination, the method comprising: storing power consumption data of a plurality of types of powering device under different lamp unit loading conditions, wherein the type of powering device is at least one of a manufacturer model, manufacturer series, or a class of powering device; at the lamp unit, determining a type of the powering device to which the lamp unit is coupled, wherein said determination is based on an analysis of the electrical power signal received at the lamp unit from the powering device; at the lamp unit, determining an operating status of the lamp unit, wherein the operating status comprises the color information and/or the hue information; determining a corresponding power consumption of the powering device from the stored power consumption data, based on the determined type of the powering device type and on the operating status of the lamp unit; and calculating a total power consumption of the lighting device as a sum of the power consumption of the powering device and the lamp unit, wherein said analysis comprises determining at least a frequency of the electrical power signal. ### Claim 2 (depends on 1) The method according to claim 1, wherein said power consumption data is stored in the lamp unit. ### Claim 3 (depends on 1) The method according to claim 1, wherein said determining of the corresponding power consumption of the powering device and said calculating of the total power consumption of the lighting device are performed in the lamp unit. ### Claim 4 (depends on 3) The method according to claim 3, further comprising reporting the calculated total power consumption from the lamp unit to a monitoring system via a communications network. ### Claim 5 (depends on 1) The method according to claim 1, further comprising reporting the determined type of the powering device and the operating status of the lamp unit from the lamp unit to a monitoring system via a communications network, wherein said determining of the corresponding power consumption of the powering device and said calculating of the total power consumption of the lighting device are performed at the monitoring system. ### Claim 6 (depends on 1) The method according to claim 1, wherein said stored power consumption data comprises a plurality of data values of losses of the powering device under a corresponding plurality of different loading conditions. ### Claim 7 (depends on 6) The method according to claim 6, wherein said determining of the corresponding power consumption of the powering device comprises interpolating between said plurality of data values of losses. ### Claim 8 (depends on 1) The method according to claim 1, wherein said stored power consumption data comprises a standby power value and an operating efficiency. ### Claim 9 (depends on 1) The method according to claim 1, wherein the lamp unit takes a form of an LED-based replacement for a gas-discharge lamp or incandescent lamp, and said powering device takes a form of a legacy powering device designed to power the gas-discharge lamp or incandescent lamp with said electrical power signal. ### Claim 10 Apparatus comprising: a lamp unit adapted to be fitted into a lighting device including a powering device for supplying an electrical power signal to power the lamp unit, the lamp unit comprising at least one light source for emitting illumination to illuminate a space when powered by the electrical power signal, wherein the light source comprises a plurality of individually-controllable LEDs operating according to color information and/or hue information, and the lamp unit further comprising an evaluation module adapted determine an operating status of the lamp unit and a type of the powering device powering the lamp unit based on an analysis of the electrical power signal received at the lamp unit from the powering device; and at least one processing unit adapted to access a data store storing power consumption data of a plurality of types of powering device under different lamp unit loading conditions, to determine the power consumption of the powering device based on the determined type of the powering device and on an operating status of the lamp unit with reference to the stored power consumption data for the determined powering device type, and to determine a total power consumption of the lighting device as a sum of the determined power consumption of the powering device and the lamp unit, wherein the operating status comprises the color information and/or the hue information, wherein the type of powering device is at least one of a manufacturer model, manufacturer series, or a class of powering device, wherein said analysis comprises determining at least a frequency of the electrical power signal. ### Claim 11 (depends on 10) The lamp unit according to claim 10, wherein said data store and said at least one processing unit are incorporated in the lamp unit, said evaluation module being implemented by the at least one processing unit. ### Claim 12 (depends on 10) The lamp unit according to claim 10, further comprising a communication unit adapted to communicate the determined type of the powering device and the operating status of the lamp unit to a monitoring system via a communications network, and wherein said at least one processing unit is implemented in the monitoring system.