WO2016012736A1 - Dispositif de mesure de consommation de puissance, système destiné à fournir des informations sur la consommation de puissance d'une pluralité d'appareils et procédé de détermination de consommation de puissance - Google Patents

Dispositif de mesure de consommation de puissance, système destiné à fournir des informations sur la consommation de puissance d'une pluralité d'appareils et procédé de détermination de consommation de puissance Download PDF

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Publication number
WO2016012736A1
WO2016012736A1 PCT/GB2014/052222 GB2014052222W WO2016012736A1 WO 2016012736 A1 WO2016012736 A1 WO 2016012736A1 GB 2014052222 W GB2014052222 W GB 2014052222W WO 2016012736 A1 WO2016012736 A1 WO 2016012736A1
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WO
WIPO (PCT)
Prior art keywords
appliance
power consumption
information
identity information
identification module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2014/052222
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English (en)
Inventor
Adrian Mckeon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KINGSLEY NAOMI
Original Assignee
KINGSLEY NAOMI
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Filing date
Publication date
Application filed by KINGSLEY NAOMI filed Critical KINGSLEY NAOMI
Priority to PCT/GB2014/052222 priority Critical patent/WO2016012736A1/fr
Publication of WO2016012736A1 publication Critical patent/WO2016012736A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D4/00—Tariff metering apparatus
    • G01D4/002—Remote reading of utility meters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/12—Monitoring network conditions, e.g. electrical magnitudes or operational status
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/13—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network
    • H02J13/1311—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using the power network as support for the transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/13—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network
    • H02J13/1337—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network involving the use of Internet protocols
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/18—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the remotely-controlled equipment, e.g. converters or transformers
    • H02J13/38—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the remotely-controlled equipment, e.g. converters or transformers the equipment being power outlets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2204/00—Indexing scheme relating to details of tariff-metering apparatus
    • G01D2204/10—Analysing; Displaying
    • G01D2204/14—Displaying of utility usage with respect to time, e.g. for monitoring evolution of usage or with respect to weather conditions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2204/00—Indexing scheme relating to details of tariff-metering apparatus
    • G01D2204/20—Monitoring; Controlling
    • G01D2204/24—Identification of individual loads, e.g. by analysing current/voltage waveforms
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2105/00—Networks for supplying or distributing electric power characterised by their spatial reach or by the load
    • H02J2105/61—Load identification
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2107/00—Circuit arrangements for communication specially adapted for monitoring, managing or controlling operation of power networks remotely
    • H02J2107/40—Circuit arrangements for communication specially adapted for monitoring, managing or controlling operation of power networks remotely using simultaneously two or more different transmission means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission

Definitions

  • the present invention relates to a power consumption measurement device, a system for providing information about the power consumption of a plurality of appliances and a method of determining power consumption.
  • Smart measurement technology includes both smart meters that measure aggregated electricity
  • GB2492482 discloses a smart plug type device that includes a photonic identifier arrangement for identifying an appliance, such as a washing machine, that is plugged into the device. By knowing the identity of the appliance, measured power
  • consumption information can be associated with the specific appliance and transmitted to a user interface for further processing.
  • smart plug devices as described above can associate appliance identification information with power consumption information, this relies on the appliance being correctly identified.
  • the system of GB2492482 discloses the use of a label on the appliance plug to identify the appliance, the label having a pattern of reflective or absorbing portions. Four dots will allow the identification of up to 16 devices, while five dots will allow up to 32 devices.
  • the label were to become detached from the plug, and be incorrectly attached to the wrong appliance, or the system is otherwise tampered with, for example by a consumer splicing two cables together instead of changing the plug, the identification system could break down.
  • a power consumption measurement device comprising a socket for receiving an electrical plug connected to an appliance, a data collection circuit arranged to determine information relating to power consumption of the appliance, an information transmitter arranged to transmit the information relating to the power consumption, a first identification module arranged to determine first identity information for the appliance that is plugged into the device, and a second identification module arranged to determine second identity information for the appliance that is plugged into the device.
  • the second identification module may be arranged to verify the identity of the appliance determined by the first identification module.
  • the user can then safely and confidently control the appliance remotely, as well as being able to use a user interface to safely and confidently perform multiple actions for multiple appliances.
  • the device may comprise a memory for storing the first identity information and the second identity information.
  • the first identification module may comprise a detector arranged at the socket for determining a pattern arranged on a surface of the appliance plug. The pattern may be on a label attached to the surface of the appliance plug. The pattern maybe a pattern of black and white dots readable by the detector, or may comprise barcode or matrix code information.
  • the first identification module may comprise a plurality of light emitting devices arranged to transmit light via the socket face towards the appliance plug and means for receiving a corresponding signal reflected from the appliance plug. The light may comprise infra-red light.
  • the device may further comprise a pipe having an outlet at the socket face, a first branch of the pipe extending to at least one of the light emitting devices, the pipe further comprising a second branch extending to a detector for detecting the reflected light.
  • the second identification module may be arranged to identify a power characteristic associated with use of the appliance, wherein the power characteristic may be electromagnetic interference EMI generated by or associated with operation of the appliance.
  • the device may further comprise a processor for comparing a currently determined characteristic with a previously stored characteristic.
  • the processor may be arranged to generate an alert if the currently determined characteristic is not the same as the previously stored characteristic.
  • the alert can be a visual or audible alert or result in some other action in the system, such as a message being sent or an appliance being temporarily disabled.
  • the processor may be arranged to generate a verification signal if the currently determined characteristic is the same as the previously stored characteristic.
  • the processor is arranged to determine whether the second identity information is the same as previously stored second identity information. Where the first identity information is different, it may be assumed that a different appliance has been plugged in, so that new second identity profiles should be stored.
  • the processor may be arranged to provide a verification signal, while if the second identity information is not the same as the previously stored second identity information, the processor may be arranged to provide an alert signal.
  • the information transmitter may be arranged to transmit the first identity information and optionally the second identity information together with the power consumption information, for example to a central communications hub.
  • a power consumption measurement device comprising a socket for receiving an electrical plug connected to an appliance, means for determining information relating to power consumption of the appliance, means for transmitting the information relating to the power consumption, first identification means for determining first identity information for the appliance that is plugged into the device and second identification means for determining second identity information for the appliance that is plugged into the device.
  • the second identification means may comprise means for verifying the first identity information.
  • the device may be a smart plug, a smart socket or an extension socket, any of which may be generically referred to as a smart device.
  • a system for providing information about power consumption of a plurality of appliances comprising a plurality of power consumption measuring devices, each comprising a socket for receiving an electrical plug connected to an appliance, a data collection circuit arranged to determine information relating to power consumption of the appliance, an information transmitter arranged to transmit the information relating to the power consumption, a first identification module arranged to determine first identity information for the appliance that is plugged into the device, and a second identification module arranged to determine second identity information for the appliance that is plugged into the device, the system further comprising a
  • communications module for receiving the power consumption information from each of the plurality of power consumption measuring devices.
  • the communications module may be arranged to transmit the information over the Internet to a computer server, for example for further analysis or presentation on a website.
  • the computer server may be arranged to determine the identity of each appliance from the first identity information.
  • the computer server may be arranged to verify the first identity information using the second identity information.
  • the first identity information may be derived from the pattern associated with the plug of the appliance.
  • the pattern may be arranged on a label affixed to the plug.
  • the second identity information may comprise an EMI profile determined during use of the appliance.
  • a power consumption measurement device comprising a socket for receiving an electrical plug connected to an appliance, a processor arranged to collect information relating to power consumption of the appliance, an information transmitter arranged to transmit the information relating to the power consumption, an identification module arranged to determine the identity of the appliance that is plugged into the device and a verification module arranged to verify the identity of the appliance determined by the identification module.
  • a method of determining power consumption of an appliance plugged into a power consumption measurement device comprising a socket for receiving an electrical plug connected to the appliance, a processor arranged to collect information relating to power consumption of the appliance, an information transmitter arranged to transmit the information relating to the power consumption, a first identification module arranged to determine first identity information of the appliance that is plugged into the device, and a second identification module arranged to determine second identity information of the appliance that is plugged into the device, the method comprising using the first identification module to distinguish between different types of appliance plugged into the device and using the second identification module to distinguish between different appliances of the same type.
  • the first identification module may distinguish between a washing machine and a refrigerator, while the second identification module may distinguish between different models of washing machine.
  • Figure l is an overview of a system according to an embodiment of the invention.
  • Figure 2A illustrates an example of a power consumption measurement device that forms part of the system of Figure l.
  • Figure 2B illustrates another example of a power consumption measurement device that forms part of the system of Figure l.
  • Figure 3 is a system diagram of the power consumption measurement device of Figure 2A.
  • Figure 4 is an example of a sensor device pattern on the face of the socket of the power consumption measurement device according to an embodiment of the invention.
  • Figure 5 is an example implementation of a sensor device as shown in Figure 4.
  • Figure 6 is a diagram illustrating a plug label according to an embodiment of the invention.
  • Figures 7A and 7B are diagrams showing plug labels illustrating various pattern of dots that can be read by the sensor device pattern shown in Figure 4.
  • Figure 8 is a flow chart explaining the operation of the system according to
  • Figure 1 is an overview of a system according to an embodiment of the invention.
  • Figure 2A illustrates an example of a power consumption measurement device that forms part of the system of Figure 1, where the device is a plug for being plugged into a socket and for in turn receiving an appliance plug.
  • This type of device is alternatively referred to as a smart plug.
  • Figure 2B illustrates another example of a power consumption measurement device that forms part of the system of Figure 1.
  • the device is a socket for receiving an appliance plug, as might conventionally be mounted in the wall of a house.
  • This type of device is alternatively referred to as a smart socket.
  • the power consumption measurement device may be implemented in any form that allows an appliance to be plugged in, for example as an extension socket, also referred to as a plug board or multi-socket adaptor.
  • an extension socket also referred to as a plug board or multi-socket adaptor.
  • the system will be described by reference to a smart plug, but it will be understood that this is not limiting.
  • a system l comprises one or more power consumption measurement devices, for example, smart plugs 2.
  • a plurality of smart plugs 2a, 2b, 2n are shown, each of the plugs being connected to the household electricity supply (mains) 3.
  • data from each of the smart plugs is transmitted externally over the mains using a power line communication (PLC) scheme.
  • PLC power line communication
  • a PLC to Ethernet bridge 4 is also connected to the household electricity supply to allow connection to a network such as, but not limited to, the Internet 5 via, for example, an RJ45 socket.
  • the PLC to Ethernet bridge converts data bidirectionally between the internet and the PLC system, so that the smart plugs can be controlled via the Internet.
  • the data measured by the smart plugs is sent to a computer system 6 where it is processed and can subsequently be accessed by the consumer over the Internet, for example showing the actual cost in monetary terms, rather than just power units (e.g. kWh), of running each appliance within the home.
  • power units e.g. kWh
  • Each consumer may have an account on the computer system 6 which holds
  • FIG. 2A shows one example of a smart plug according to an embodiment of the invention.
  • the smart plug 2 includes a socket 10 for receiving an appliance plug (not shown), status indicators 12, for example power on and error indicators, a plug 13 for plugging the smart plug into a conventional power socket (not shown), a sensor arrangement 14 for use in appliance identification and optionally a USB socket or other form of interface 15 for receiving and powering external sensors and devices.
  • the device plug and power socket are conventional devices, for example a 3-pin plug and corresponding socket in the UK, but the appropriate plug and socket arrangement adapted to the requirements of each country of use would be used in practice.
  • FIG. 2B shows an example of a smart socket 7.
  • This includes a socket face 10 and a sensor arrangement 14 as described above in relation to the smart plug.
  • Figure 3 illustrates the internal structure of the smart plug 2 shown in Figure 2A.
  • the smart plug comprises a data measurement/collection circuit 16 for determining the voltages and current necessary to calculate power consumption of the attached appliance, a data transmission circuit 17 for transmitting information via the mains or, optionally, wirelessly, memory 18, for example flash memory, a microprocessor 19, an optional USB interface 20 and an API 21 running under the control of the
  • the smart plug 2 further includes a sensor interface module 22 connected to the sensor arrangement 14 on the face of the plug and an electromagnetic interference (EMI) module 23. Both the sensor interface module and the EMI module interface with the microprocessor 19.
  • EMI electromagnetic interference
  • circuit arrangement within the smart socket 7 or extension socket (not shown) is essentially identical to that within the smart plug, other than that the plug 13 is replaced by the appropriate connector arrangement to allow the socket to be connected to the electricity supply.
  • the EMI module 23 comprises an EMI sensor 24, alternatively referred to as an EMI detector circuit 24, and an analogue to digital converter (ADC) 25.
  • the EMI detector circuit 24, also referred to as an electromagnetic field (EMF) detector, is arranged to detect electromagnetic interference EMI generated by or associated with the appliance that is plugged into the smart plug. Each appliance will generate its own pattern of EMI that depends on its electrical construction and operation.
  • the EMI detector detects, for example, the EMI noise that is conducted by the power lines at the smart plug and in addition may measure the EMI that is locally radiated by the appliance.
  • the detected analogue EMI field is converted into a digital signal by the analogue to digital converter (ADC) 25 before being supplied to the microprocessor 19.
  • ADC analogue to digital converter
  • the EMI detector may be integrally provided with the ADC circuit, so providing an EMI module 23 that outputs a digital signal, representative of the EMI field, which can be read by the microprocessor 19.
  • the EMI field pattern can be analysed at sufficiently high sampling rates to provide high levels of data granularity, so allowing unique EMI digital profiles to be produced for each appliance.
  • the consumption is collected, stored in flash memory and transmitted via the electrical wiring system (mains) within the house to the bridge plug 4 which transmits the data over the internet to a server, where the data is processed and can subsequently be accessed by the consumer.
  • the data can also be transmitted via a wireless network with wireless transmitter/receivers built into each smart plug.
  • the central control system is aware that power to the device cannot be disconnected. But where the device is a washing machine, the central system may be able to recommend, or even control, the turn-on of the machine to be delayed until a more favourable energy tariff is available.
  • Figure 4 illustrates in more detail the sensor array 14 on the face of the device socket 10.
  • Figure 5 shows an example implementation of one sensor 26 in the sensor array.
  • Each sensor 26 comprises a light guide 27, for example, made of glass or plastic, comprising a single pipe section 27a passing through the socket face 28, the single pipe section being connected to first and second branches 27b, 27c.
  • An infra red light emitter 29 is arranged at the end of the first branch 27b and a photodetector 30 arranged at the end of the second branch 27c.
  • Light passes from the emitter 29 through the socket face 28 and is reflected from the plug face 31, the reflected light being detected by the photodetector 30.
  • the infra-red light emitter 29 is arranged to emit a continuous series of pulses under the control of a control circuit 32 towards the appliance plug plugged into the socket. The light is absorbed by or reflected from a corresponding region 33 on the plug surface and the reflected signal is detected by the photodetector.
  • Figure 6 illustrates a label 35 to be applied to the surface of the plug, the label including a predetermined pattern to identify a particular appliance.
  • the label may be made of paper, plastic or any suitable material that allows the application of a pattern.
  • Figure 6 shows four possible dot positions 36 at which a reflective or absorbing portion may be placed to indicate the presence or absence of a dot in that region.
  • a reflective portion is attached at the dot position
  • the infra red light is reflected more strongly from that dot position than from the surrounding area, which indicates the presence of a dot.
  • a black portion or dot could be placed in the region which absorbs infra red light provided by the sensor. In this case, the absence of a strong reflection indicates the presence of a dot in that region.
  • a number of different appliances can be identified in accordance with a standard binary code. For example, by providing four regions which may or may not contain a dot, sixteen different appliances can theoretically be identified ranging from the absence of all dots (binary o) to the presence of four dots (binary 15). In practice, a smaller number of appliances may be identifiable since it may be desirable to exclude the presence of all dots or no dots to differentiate from a plug that does not include a label according to the invention.
  • Figure 7A illustrates a label for a microwave having, for example, two dots 37 disposed diagonally
  • Figure 7B illustrates a label for a washing machine having two dots 38 disposed in an alternative diagonal configuration
  • Figure 7A represents, for example, appliance ID 5 (binary code 0101), starting from the top left and working clockwise
  • Figure 7B represents appliance ID 10 (binary code 1010).
  • the appliance IDs are clearly not limited to these specific codes.
  • FIG. 8 is a flowchart illustrating the operation of the system according to
  • the photonic module 14, 22 (comprising the sensor arrangement 14 and the sensor interface 22) is used to determine first identity information for the appliance, for example an appliance identifier ID, and to store this information in the memory 18, under the control of the microprocessor 19 (step si). This step can be carried out while the power to the appliance is switched on, but before the appliance is operational.
  • the EMI module 23 (comprising the EMI sensor), is used to determine second identity information for the appliance, for example the EMI profile of the appliance, and to store this information in the memory 18 against the appliance ID (step S2).
  • the processor 19 in the smart plug compares the appliance ID against a previously stored appliance ID to determine whether the appliance has changed (step S3). If the appliance IDs are the same (step S3), then the processor 19 determines whether the second identity information is the same as the previously stored second identity information (step S4). For example, the processor 19 compares the EMI profile of the appliance with a previously stored EMI profile to determine whether the profiles are similar enough to be considered to originate from the same appliance. In other words, two profiles are considered to be the same if the differences between them fall within a predetermined threshold.
  • the device identity is verified, so that power consumption data can be measured and transmitted to the bridge plug 4 together with the first identity information and, optionally, the second identity information (step S5). If a comparison of the EMI profiles indicates that the profiles are not the same (step S4), indicating that the profiles originate from different appliances, an alert is raised, for example by a flashing or constant red status light at the smart plug (step s6). This indicates that even though the appliance identifiers, comprising the first identification information, are apparently the same, the appliance itself is not the original, or is defective in some way.
  • step S3 If it is found when comparing the appliance IDs that these are not the same (step S3), then the consumer can be asked to confirm that the appliance has been changed (step S7) and following such confirmation, the smart plug can again proceed to transmit power consumption data to the bridge plug 4 (step S5).
  • the data transmitted from each smart plug is ultimately received by the computer system 6 via the bridge plug 4 and processed and stored against the appliance ID (step s8).
  • the appliance ID changes and the stored data is then associated with the different ID. This permits long term analysis of data for each different appliance.
  • the system can permit only certain types of appliances with
  • predetermined EMI profiles to be connected, so that if a new appliance is plugged in which is not permitted, power consumption information for that appliance will not be provided.
  • the verification process is carried out at the smart plug, the process need not be carried out at the smart plug but could be carried out at the central server or at an intermediate location such as the bridge plug 4.
  • an appliance is likely to have a varying EMI profile across its operating range.
  • a washing machine will have distinct EMI profiles while it is filling with water, while the motor rotates the tub during washing, during the spin cycle, during draining and so on.
  • a plurality of individual profiles can therefore be stored and compared to improve the device identification process.
  • two signals are provided by the smart device for the purpose of identification and verification, the first being an identification signal, for example a photonic signal based on, for example, infra-red sensors, and the second being a verification signal based on, for example, an EMI profile.
  • the identification signal provides the identity of the appliance plugged into the smart device, while the verification signal verifies that the identity is correct. In effect, the result is to authenticate the identity of the appliance, for example for the purpose of security.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

La présente invention porte sur un dispositif intelligent qui comprend une douille destinée à recevoir une fiche électrique connectée à un appareil, un circuit de collecte de données configuré pour déterminer des informations relatives à la consommation de puissance de l'appareil, un émetteur d'informations configuré pour transmettre les informations relatives à la consommation de puissance, un premier module d'identification configuré pour déterminer de premières informations d'identité pour l'appareil qui est enfiché dans le dispositif, et un second module d'identification configuré pour déterminer de secondes informations d'identité pour l'appareil qui est enfiché dans le dispositif. Le second module d'identification peut comprendre un module d'authentification.
PCT/GB2014/052222 2014-07-21 2014-07-21 Dispositif de mesure de consommation de puissance, système destiné à fournir des informations sur la consommation de puissance d'une pluralité d'appareils et procédé de détermination de consommation de puissance Ceased WO2016012736A1 (fr)

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PCT/GB2014/052222 WO2016012736A1 (fr) 2014-07-21 2014-07-21 Dispositif de mesure de consommation de puissance, système destiné à fournir des informations sur la consommation de puissance d'une pluralité d'appareils et procédé de détermination de consommation de puissance

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Cited By (1)

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CN106094631A (zh) * 2016-06-30 2016-11-09 北京小米移动软件有限公司 智能开关控制方法及装置

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EP2348608A2 (fr) * 2010-01-25 2011-07-27 Sony Corporation Procédé, système et capteur pour identifier un dispositif électrique raccordé au secteur
WO2011104661A1 (fr) * 2010-02-25 2011-09-01 Koninklijke Philips Electronics N.V. Surveillance de statut opérationnel d'appareils
US20120016608A1 (en) * 2010-07-16 2012-01-19 Industrial Technology Research Institute Method and system for monitoring residential appliances
GB2492482A (en) * 2011-06-29 2013-01-02 Naomi Kingsley Smart plug for identifying individual appliance and monitoring their power consumption
US20130179124A1 (en) * 2007-09-18 2013-07-11 Shwetak N. Patel Electrical event detection device and method of detecting and classifying electrical power usage

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US20130179124A1 (en) * 2007-09-18 2013-07-11 Shwetak N. Patel Electrical event detection device and method of detecting and classifying electrical power usage
EP2348608A2 (fr) * 2010-01-25 2011-07-27 Sony Corporation Procédé, système et capteur pour identifier un dispositif électrique raccordé au secteur
WO2011104661A1 (fr) * 2010-02-25 2011-09-01 Koninklijke Philips Electronics N.V. Surveillance de statut opérationnel d'appareils
US20120016608A1 (en) * 2010-07-16 2012-01-19 Industrial Technology Research Institute Method and system for monitoring residential appliances
GB2492482A (en) * 2011-06-29 2013-01-02 Naomi Kingsley Smart plug for identifying individual appliance and monitoring their power consumption

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106094631A (zh) * 2016-06-30 2016-11-09 北京小米移动软件有限公司 智能开关控制方法及装置

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