GB2439763A - Intelligent standby power saving for electrical devices - Google Patents

Intelligent standby power saving for electrical devices Download PDF

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Publication number
GB2439763A
GB2439763A GB0613415A GB0613415A GB2439763A GB 2439763 A GB2439763 A GB 2439763A GB 0613415 A GB0613415 A GB 0613415A GB 0613415 A GB0613415 A GB 0613415A GB 2439763 A GB2439763 A GB 2439763A
Authority
GB
United Kingdom
Prior art keywords
power saving
switch
intelligent power
saving switch
power
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.)
Granted
Application number
GB0613415A
Other versions
GB2439763B (en
GB0613415D0 (en
Inventor
Martin James Croft
Stephen William Reynolds
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0613415A priority Critical patent/GB2439763B/en
Publication of GB0613415D0 publication Critical patent/GB0613415D0/en
Publication of GB2439763A publication Critical patent/GB2439763A/en
Application granted granted Critical
Publication of GB2439763B publication Critical patent/GB2439763B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3231—Monitoring the presence, absence or movement of users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • 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
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Power Engineering (AREA)
  • Television Receiver Circuits (AREA)
  • Selective Calling Equipment (AREA)

Abstract

An intelligent power saving device for electrical devices such as televisions which have a standby mode. The power saving device comprises an AC power measuring circuit 2 to derive the state of the connected device by measuring its power consumption, a switch 3 to control output power, a motion or presence detector 5 and either controlling logic or a microcontroller 4. The invention disconnects the mains power from the electrical device while there is no person present, but only if the device is in its standby mode.

Description

<p>Intelligent standby power saving for electrical devices This invention
relates to an intelligent mains electricity switch which can be connected between a consumer device and the electrical main supply; specifically devices with a built in standby mode such as a TV. The invention may be used to eliminate mains power to the device whilst the unit is unused in this standby mode; so indirectly saving money and the production of greenhouse gases.</p>
<p>Many devices, e.g. TV, Set-top box, DVD players now include a standby mode of operation, and many of these still consume 5 to 20 watts of power in this mode. The standby mode is convenient for the user since the functions of the device may be controlled by a remote control. Other methods of saving power whilst retaining use of the remote control have been tried, such as Timer Switches. These have disadvantages of needing manual intervention if the device is required to be used during a programmed OFF' period or frequent manual intervention for Daylight Saving Time and holidays.</p>
<p>The object of this invention is to provide a device which automatically disconnects the mains power from the device Jy when it is standby mode and returns it to standby mode when a person is present in the room by use of a PIR or motion detector. Power is saved whenever the room is unoccupied and the user is unaware that the device has been off while they were away.</p>
<p>Accordingly, this invention comprises a unit to be connected between the electrical device and the mains circuit. The invention includes a power detection circuit which can detect when the device is in standby by measuring the power consumption of the device.</p>
<p>It also includes a switch which can turn off power to the device and a PIR or motion detector which is used to detect that a person is present in the room and therefore may want the device to be ready to use. Finally the device requires intelligence in the form of a microcontroller or specific custom logic to take these decisions.</p>
<p>The preferred embodiment of this device would be in a package with a standard mains electricity plug (male) connector on one side and a standard mains electricity socket (female) connector on the other for connection of the electrical device. The PR detector may be built into the main casing or may be on an extended cable to allow the PR device to see' a larger area of the room for detection of a human presence.</p>
<p>Figure 1 shows a block diagram of the functional parts of the invention. These comprise a low current Power Supply for the invention (1) , an AC Power measuring circuit (2), a controllable switch (3), a Micro Controller (4) , a PIR motion detector (5) and a calibration button (6).</p>
<p>Figure 2 shows the state behaviour of the device. The four main states are Calibrate (7), On (8), Standby (9) and Off (10). The states On (8), Standby (9) and Off (10) relate to the perceived state of the electrical device as seen by the invention. All states except Off (10) allow full mains electricity to the TV.</p>
<p>As shown in figure 1, the invention is controlled by a micro controller which can measure the power being used by the electrical device and which can control the power switch to the device. The microcontroller also knows if there has been movement in the room or if there is a need to calibrate the unit.</p>
<p>Figure 2 describes the states for the controlling logic or microcontroller.</p>
<p>The operation of the invention is as follows. When the unit is installed the owner places his TV in standby and presses the calibrate button. The unit goes into the state Calibrate (7). In this state the invention will learn and store the power consumed by the TV in standby mode. An indication is given to the device user that calibration has been successful. When calibration is complete the invention switches to Standby state (9).</p>
<p>In state Standby (9) the invention continually monitors the power consumption of the unit and the PIR detector. If the unit has been on Standby for a preset time (a few minutes), and there has been no motion in the room, then the power to the TV is switched off and the state moves to Off(10). If the invention detects a larger power consumption during the Standby (9) mode, it assumes the TV is being used and it changes to state On (8) In state On (8) the invention assumes the TV or electrical device is in full use and does not switch off the power supply to it.</p>
<p>In state Off (10) the power to the TV or other electrical device is switched off by the use of switch (3) of figure 1 under control of the controlling logic or microcontroller. This is the power saving mode and is the only state in which input power is disconnected from the output. Consumption of power by the invention will be vastly less than the power used by the device in standby mode (less than Iwatt) thus leading to a large net saving of power. While the system is in the Off (10) state, the controller continually checks the PIR motion detector. On seeing an active state signifying a presence in the room, reconnects the power, therefore allowing the TV or other device back into its standby mode for immediate use by the user with the remote control.</p>
<p>At any time the unit can be recalibrated by pressing the calibrate button while the electrical device is in standby.</p>
<p>The following is a description of the events on figure 2 which drive the state of the unit:-El: Initial power up when not calibrated. The system is calibrated (learns standby current) in state Calibrate (7).</p>
<p>E2: The user presses the calibrate button. The system is calibrated (learns standby current) in state Calibrate (7).</p>
<p>E3: Calibration complete. The system enters the Standby state (9) and starts a presence timer.</p>
<p>E4:Standby current is detected. The system enters the Standby state (9) and starts a presence timer.</p>
<p>E5:On current is detected. The system enters the On state (8).</p>
<p>E6:The system is powered up when calibrated. The system enters the Standby (9) state and starts a presence timer.</p>
<p>E7:Motion detected in Standby (9). The presence timer is reset and the state remains Standby (9).</p>
<p>E8:Motion detection in Off state (10). The system enters the Standby (9) state and starts a presence timer. The power to the device is enabled.</p>
<p>E9:Presence timer expires in Standby (9). The system enters the Off state (10) and the power to the device is disabled.</p>

Claims (1)

  1. <p>Claims 1. An intelligent power saving switch for a electrical device
    (e.g. TV or other) comprising an AC power measuring circuit, a controllable switch, a PIR motion detector and a state machine to control the electricity power supply to the said device during its standby.</p>
    <p>2. An intelligent power saving switch as in claim 1 which can turn off the power to a electrical device which is in standby mode and turn on the power again when a person enters the room.</p>
    <p>3. An intelligent power saving switch as in claim 1 where the control may be performed by a microcontroller or discrete electronics.</p>
    <p>4. An intelligent power saving switch as in claim 1 where the PIR detector may be remotely connected by a cable to provide a greater area of movement detection or may be integral to the device.</p>
    <p>5. An intelligent power saving switch as in claim 1 which is enhanced by indicators (LEDS) or a LCD (Liquid Crystal Display) to tell the user what state it is in.</p>
    <p>6. An intelligent power saving switch as in claim I which has a built in power saving readout, in the form of a Liquid Crystal Display, displaying Power, Current, money saved or other useful data.</p>
    <p>7. An intelligent power saving switch as in claim 1 where the detection of the person may be by a motion detector, PIR or Pressure switch or Door Switch.</p>
    <p>8. An intelligent power saving switch as in claim 1 where the an interface is made to a Security Alarm system, which allows information about the human presence in various rooms of a house to be passed to the said device 9. An intelligent power saving switch as in claim 1 where the device may pass the data on the amount of power or money saved to a personal computer or other similar device via means of serial, USB, mains signalling or any other interface.</p>
GB0613415A 2006-07-06 2006-07-06 Intelligent standby power saving for electrical devices Expired - Fee Related GB2439763B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0613415A GB2439763B (en) 2006-07-06 2006-07-06 Intelligent standby power saving for electrical devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0613415A GB2439763B (en) 2006-07-06 2006-07-06 Intelligent standby power saving for electrical devices

Publications (3)

Publication Number Publication Date
GB0613415D0 GB0613415D0 (en) 2006-08-16
GB2439763A true GB2439763A (en) 2008-01-09
GB2439763B GB2439763B (en) 2010-04-14

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451822A (en) * 2007-08-13 2009-02-18 Automatic Retailing Power control unit, e.g. for a vending machine
GB2458158A (en) * 2008-03-07 2009-09-09 Alertme Com Ltd Monitoring and automatically switching off electrical appliances when no one is present
GB2460872A (en) * 2008-06-13 2009-12-16 Alertme Com Ltd Power consumption feedback system
EP2148307A1 (en) * 2008-07-21 2010-01-27 Somfy SAS Method for controlling a group of wirelessly controlled appliances
WO2010041085A1 (en) * 2008-10-09 2010-04-15 Timothy Paul Jarvis Automatic switching apparatus.
WO2011044767A1 (en) * 2009-10-13 2011-04-21 达能科技股份有限公司 Intelligent learning control method of standby power-saving controller
GB2486642A (en) * 2010-12-20 2012-06-27 Gopinath Patel Motion sensitive mains adapter
US8243141B2 (en) 2007-08-20 2012-08-14 Greenberger Hal P Adjusting a content rendering system based on user occupancy
EP2546954A1 (en) * 2011-07-12 2013-01-16 HannStar Display Corp. Energy savings switch device, and method thereof
EP2393168A3 (en) * 2010-06-04 2013-01-23 Prodigit Electronics Co., Ltd. Control circuit of power-saving socket
US8629938B2 (en) 2009-10-05 2014-01-14 Sony Corporation Multi-point television motion sensor system and method
CN104216309A (en) * 2013-06-05 2014-12-17 施耐德电器工业公司 Intelligent standby powering on and off device and method
CN104238394A (en) * 2014-09-16 2014-12-24 杭州古北电子科技有限公司 Universal control method including triggering conditions, state judgment conditions and judgment implementation conditions
WO2017152791A1 (en) * 2016-03-11 2017-09-14 深圳市中兴微电子技术有限公司 Method and device for controlling standby state, and storage medium

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09179507A (en) * 1995-12-26 1997-07-11 Kubota Corp Power saving device for electric equipment with display part
US5701117A (en) * 1996-01-18 1997-12-23 Brian Page Platner Occupancy detector
DE19841369A1 (en) * 1998-09-10 2000-03-16 Frank Arnold Socket (strip) controlled by motion switch using controlled or adjustable switching of connected loads such that light measurement can be incorporated into controls
JP2000295543A (en) * 1999-04-09 2000-10-20 Matsushita Electric Ind Co Ltd Power supply controller for television receiver
US6259486B1 (en) * 1999-10-20 2001-07-10 A. Pascal Mahvi Sensor unit for controlling television set operation
WO2004027749A1 (en) * 2002-09-17 2004-04-01 Koninklijke Philips Electronics N.V. Television power saving system with motion sensor
DE102004031087A1 (en) * 2004-06-28 2006-01-12 Pflaum, Wilhelm C., Dipl.-Ing. Energy saving device for a computer comprises a sensor that detects the physical presence of a person in front of the computer so that its power consumption can be changed accordingly

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JP3251492B2 (en) * 1996-03-25 2002-01-28 シャープ株式会社 AC supply circuit provided with current detection means
JP2000134825A (en) * 1998-10-27 2000-05-12 Uerushii:Kk Power source switching device for electrical appliance
JP2000308150A (en) * 1999-04-22 2000-11-02 Usui Mitsuru Remote control switch device for making waiting power of operating electronic equipment zero
ITMI20050521A1 (en) * 2005-03-30 2006-09-30 Arti & Mestieri S N C I Legni CONNECTING DEVICE FOR DOMESTIC ELECTRICAL EQUIPMENT WITH AN ELECTRICITY DISTRIBUTION NETWORK

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09179507A (en) * 1995-12-26 1997-07-11 Kubota Corp Power saving device for electric equipment with display part
US5701117A (en) * 1996-01-18 1997-12-23 Brian Page Platner Occupancy detector
DE19841369A1 (en) * 1998-09-10 2000-03-16 Frank Arnold Socket (strip) controlled by motion switch using controlled or adjustable switching of connected loads such that light measurement can be incorporated into controls
JP2000295543A (en) * 1999-04-09 2000-10-20 Matsushita Electric Ind Co Ltd Power supply controller for television receiver
US6259486B1 (en) * 1999-10-20 2001-07-10 A. Pascal Mahvi Sensor unit for controlling television set operation
WO2004027749A1 (en) * 2002-09-17 2004-04-01 Koninklijke Philips Electronics N.V. Television power saving system with motion sensor
DE102004031087A1 (en) * 2004-06-28 2006-01-12 Pflaum, Wilhelm C., Dipl.-Ing. Energy saving device for a computer comprises a sensor that detects the physical presence of a person in front of the computer so that its power consumption can be changed accordingly

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451822A (en) * 2007-08-13 2009-02-18 Automatic Retailing Power control unit, e.g. for a vending machine
GB2451822B (en) * 2007-08-13 2012-12-12 Automatic Retailing Scotland Ltd Energy saving apparatus
US8243141B2 (en) 2007-08-20 2012-08-14 Greenberger Hal P Adjusting a content rendering system based on user occupancy
GB2458158A (en) * 2008-03-07 2009-09-09 Alertme Com Ltd Monitoring and automatically switching off electrical appliances when no one is present
WO2009109787A1 (en) * 2008-03-07 2009-09-11 Alertme.Com Ltd. Electrical appliance monitoring systems
GB2458158B (en) * 2008-03-07 2010-06-23 Alertme Com Ltd Electrical appliance monitoring systems
GB2460872A (en) * 2008-06-13 2009-12-16 Alertme Com Ltd Power consumption feedback system
GB2460872B (en) * 2008-06-13 2010-11-24 Alertme Com Ltd Power consumption feedback systems
EP2148307A1 (en) * 2008-07-21 2010-01-27 Somfy SAS Method for controlling a group of wirelessly controlled appliances
US9092971B2 (en) 2008-07-21 2015-07-28 Somfy S.A.S. Method for controlling a group of wirelessly controlled appliances
WO2010041085A1 (en) * 2008-10-09 2010-04-15 Timothy Paul Jarvis Automatic switching apparatus.
US8629938B2 (en) 2009-10-05 2014-01-14 Sony Corporation Multi-point television motion sensor system and method
US8854544B2 (en) 2009-10-05 2014-10-07 Sony Corporation Multi-point television motion sensor system and method
WO2011044767A1 (en) * 2009-10-13 2011-04-21 达能科技股份有限公司 Intelligent learning control method of standby power-saving controller
EP2393168A3 (en) * 2010-06-04 2013-01-23 Prodigit Electronics Co., Ltd. Control circuit of power-saving socket
GB2486642A (en) * 2010-12-20 2012-06-27 Gopinath Patel Motion sensitive mains adapter
EP2546954A1 (en) * 2011-07-12 2013-01-16 HannStar Display Corp. Energy savings switch device, and method thereof
CN102882364A (en) * 2011-07-12 2013-01-16 瀚宇彩晶股份有限公司 Energy-saving switch device and method
CN104216309A (en) * 2013-06-05 2014-12-17 施耐德电器工业公司 Intelligent standby powering on and off device and method
CN104216309B (en) * 2013-06-05 2016-12-28 施耐德电器工业公司 A kind of devices and methods therefor with intelligent standby power on/off function
CN104238394A (en) * 2014-09-16 2014-12-24 杭州古北电子科技有限公司 Universal control method including triggering conditions, state judgment conditions and judgment implementation conditions
WO2017152791A1 (en) * 2016-03-11 2017-09-14 深圳市中兴微电子技术有限公司 Method and device for controlling standby state, and storage medium

Also Published As

Publication number Publication date
GB2439763B (en) 2010-04-14
GB0613415D0 (en) 2006-08-16

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Effective date: 20160222

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20220706