GB2425225A - Power distribution device having light and sound sensors and timing means - Google Patents

Power distribution device having light and sound sensors and timing means Download PDF

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Publication number
GB2425225A
GB2425225A GB0522725A GB0522725A GB2425225A GB 2425225 A GB2425225 A GB 2425225A GB 0522725 A GB0522725 A GB 0522725A GB 0522725 A GB0522725 A GB 0522725A GB 2425225 A GB2425225 A GB 2425225A
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GB
United Kingdom
Prior art keywords
power
saving device
power saving
appliances
electrical
Prior art date
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Withdrawn
Application number
GB0522725A
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GB0522725D0 (en
Inventor
Roger Green
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB0522725D0 publication Critical patent/GB0522725D0/en
Publication of GB2425225A publication Critical patent/GB2425225A/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
    • H01R24/22—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable with additional earth or shield contacts
    • 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
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth pin, blade or socket
    • 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
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H01R24/30—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable with additional earth or shield contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/003—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits the coupling part being secured only to wires or cables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1607—Supply circuits
    • H04B1/1615—Switching on; Switching off, e.g. remotely
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0241—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where no transmission is received, e.g. out of range of the transmitter
    • 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
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Television Receiver Circuits (AREA)

Abstract

A power distribution device for saving power consumed by electrical appliances which are placed in standby mode has a power input connection 3 and at least one power output 5. A light detector 6 and a sound detector 7 monitor activity in the vicinity of the device. If a period of inactivity exceeds a set time delay a switching means (14, fig. 2) removes or reduces the power supply to any connected appliances. The time delay can be manually adjusted by a control 9, and an override 8 allows the appliances to remain on if required. The power input connection may comprise an electrical plug and the power outlet may be an electrical socket.

Description

POWER SAVING DEVICE
TECHNICAL FIELD OF THE INVENTION
This invention relates to a device for reducing the power consumption of one or more electrical appliances when they are not being used.
BACKGROUND
Many domestic appliances still draw a considerable amount of power even when they are ostensibly turned off. For example, digital television decoders may draw up to 30 watts in standby mode. DVD players, VCR recorders, audio systems, kitchen appliances and office equipment may also draw considerable amounts of power in standby, so that the total amount of energy wasted when household equipment is not being used may be very substantial. On the other hand, the amount of power drawn in standby can vary considerably from one appliance to another.
Various devices are already known for reducing power consumption-of an appliance when not in use. DE 100 08 934 Al discloses a power switching device which has a remote infrared sensor. A sound detector is also provided to enable the controlled appliance to be turned on using hand claps Infrared sensors are responsive to heat and are therefore prone to false triggering by any heat source Such sensors could not therefore be used to reliably power-down equipment which is not being used, even in combination with a sound detector.
WO 2004/027749 Al discloses a power saving device which removes power from a television receiver when no movement is detected in the vicinity. The device may include an infrared detector. The use of motion and infrared sensors is similarly disclosed in WO 2001/30070 Al. The use of a motion sensor to control the supply of power to a television receiver is also disclosed in JP 2000-295543. As already noted, heat sensors are prone to false triggering. Furthermore, since people are often motionless for considerable periods whilst watching television for example, the use of movement sensors to remove power from a device when no movement is detected could be a considerable nuisance for the user.
Another device disclosed in EP 120 507 Al is intended for turning off lamps when no sound has been detected for a period of four minutes. A light-sensitive element may be included such that the lamp is only switched on if sound is detected when light levels are low. EP 93 810 Al contains another proposal for powering down equipment when no sound is detected. However, although sound level can be a fairly reliable indicator of human activity there are circumstances in which domestic equipment may be used under quiet conditions. For example, televisions are often used by the deaf with no sound and teletext subtitles, and the volume may be reduced when young children are sleeping nearby.
US 4 585 338 describes a power controller for a copying machine which removes power from parts of the machine in response to light reduction.
Furthermore, another device for shutting off equipment in the absence of light is proposed in GB 2 345 809 A. Since many domestic appliances are used under low light conditions a device which removes power under low light conditions would be worse than useless. For example, people may wish to listen to music under subdued light, or from another room, in which case there would be a temptation to leave a light on unnecessarily or simply stop using the power saving device under any circumstances The present invention seeks to provide a new and inventive form of device for reducing the power consumption of one or more electrical appliances when they are not being used and which is capable of operating reliably under a wide range of conditions so that in most circumstances the user can simply install the device and then forget about it.
SUMMARY OF THE INVENTION
The present invention proposes a power saving device having a power input for connection with an electrical power source and a power output to which at least one electrical appliance can be connected to receive power from the power input, and the device includes a first sensor responsive to visible light levels, a second sensor for detecting activity in the vicinity of the device, and timing means responsive to the first and second sensors to remove or substantially reduce the supply of power to the appliance or appliances when a low ambient light level has been maintained and no activity has been detected for the duration of a timing period.
The second sensor preferably includes a device for converting sounds into electrical signals
BRIEF DESCRIPTION OF THE DRAWINGS
The following description and the accompanying drawings referred to therein are included by way of non-limiting example in order to illustrate how the invention may be put into practice. In the drawings: Figure 1 is a general view of one possible embodiment of the device which is capable of controlling several appliances; Figure 2 is a schematic block diagram of the device; and Figure 3 is a software flow diagram to illustrate the operation of the device.
DETAILED DESCRIPTION OF THE DRAWINGS
The particular embodiment of the device which is shown in Fig. I takes the form of a socket assembly 1 having a power input cable 2 ending in an electrical plug 3 for connection to a conventional domestic electrical power outlet such as an a.c. wall socket. The socket assembly includes a housing 4 which carries a group of electrical power outlet sockets -5 (six in this particular embodiment) into which up to six electrical appliances may be plugged. In a typical domestic situation such appliances may, for example, comprise a television receiver, a digital television decoder, a DVD player, a VCR, a game console etc. The housing also includes a microphone 6 and a light sensor 7 which is responsive to light in the visible region of the spectrum. Additional manual controls are provided in the form of an override button 8, a delay adjustment 9 and a mode selection button 11.
Fig. 2 shows a schematic electrical circuit diagram of the device, including the electronics which are contained within the housing 4. The mains input represents the plug 3 and cable 2 whereas the mains output 12 represents the sockets 5. The transmission of electrical power between the mains input 10 and the mains output 12 is controlled by a switching stage 14, which may comprise an electromagnetic relay having a solenoid which is operated by a switching transistor. The switching stage could, alternatively, comprise a semiconductor power switching arrangement. A power supply unit 15, capable of converting a.c. power into a low voltage d.c. supply, +V, is connected to the mains input 10 prior to the switching stage 14 to continuously provide power to the electronic circuits regardless of the state of stage 14.
The microphone 6 is incorporated in the sound detector 16, which also incorporates an audio amplifier and optional filtering or other analogue signal processing. The amplified sound output from the sound detector is fed to a controller 18 which may, for example, take the form of a microcontroller with an in-built or external timer. The controller also receives input from a light detector 20 which incorporates the light sensor 7 with optional signal amplification. The light sensor may be a light dependent resistor, a photovoltaic cell, a phototransistor, etc. The controller 18 operates the switching stage 14 to control the supply of power to the output stage 12 depending on input signals received from the light detector 20 and sound detector 16. Additional manual inputs are provided to the controller in the form of the manual override button 8, potentiometer 9 which allows manual adjustment of the timer period, and mode selection button 11.
The basic operation of the controller 18 is illustrated in Fig. 3. Upon initial power up via the mains input stage 10 and power supply 15, the controller enters an initialisation step 30 in which it determines the time delay set by the time adjustment 9, resets the timer and operates the switching stage 14 to supply full electrical power to the output stage 12 and hence to any appliances which are connected thereto. The appliances will therefore operate as normal, i.e. as if they were plugged directly into a wall outlet.
The controller then starts to measure the sound level at the input from the sound detector 16 (step 31) along with the ambient light level reading provided by the light detector 20 (step 32). When the required readings have been obtained, the controller decides whether there is light or sound present, according to threshold levels which are preset to take account of background levels, amplification noise etc. If either light or sound is detected (or both) the program returns the controller to the initialisation step 30, so that repeated readings will be taken until such time as no light or sound is present, resetting the timer after each set of readings. In the event that the light and sound readings both fall below the preset thresholds the controller progresses to step 34 and checks whether the time period as set by the adjuster 9 has expired. If not, the controller returns to step 31 to take further sound and light readings. It will be noted, however, that the timer is not reset at this stage, so that provided the light and sound levels remain low the timer will continue to increment while the controller loops between steps 31 and 34. When the coniroller eventually determines that the time delay period has been reached, or exceeded, the controller will then proceed to the final step 35 wherein the switching stage 14 is operated to turn off power to the appliances connected to the output stage 12.
The absence of light and sound generally indicates two things. Firstly, it will usually be night, and secondly, there is no human activity in the vicinity. If people are present they will generally have lights on, and they usually make some kind of sound, and provided the period set by the adjuster is long enough (at least several minutes) the activity will be detected and the appliances will remain operative. Under normal circumstances the incidences of false shut down will usually be very low.
However, should it be necessary to disable the device the manual override button 8 can be pressed to enter an "always on" condition, and the controller will continue to supply power to the output stage 12 until the button is depressed again. An LED or other indicator could be provided to show whether the device is in power saving mode or in override.
Once the controller 18 has shut off power to the output 12 the program returns to step 31. Again, it will be noted that the timer has not been reset. Provided sound and light levels remain low, the controller will continuously loop between stages 31 and 35 and the power will remain off. However, should sound or light be detected as the controller passes through step 33 the controller will immediately activate the switching stage 14 and power will be restored to the appliances without appreciable delay.
Shutting off power to most appliances during the night when they are not being used is not detrimental to their normal function, and may in fact be recommended for safety purposes, but could often result in a considerable saving in electrical power usage. Even devices which include clocks normally have battery back-up to retain their settings in the event of a power cut, and many video devices are now designed to reset their time from received television signals Devices such as satellite decoders which periodically update their settings when in standby will usually update themselves shortly after they are powered up again The present device will thus reliably switch off electrical appliances at night when there is no activity regardless of the current which is drawn by the appliances. Although the device is primarily intended to reduce the power consumption of appliances which are placed in standby mode the device can also be used to ensure that appliances are turned off during the night even if they do not draw appreciable power when switched off.
The device will thus ensure that such appliances are not inadvertently left on overnight.
In addition to responding to light and sound levels as described above, the mode control 11 can be used to select two further modes of operation.
In a "sound only" mode the controller bypasses the light detection steps so that the device may be used to turn off appliances during the daytime, when the users are out at work for example. In a further "light only" mode the sound detection steps may be bypassed so that the device will always turn off the appliances at night regardless of any sound input. Such a system might, for example, be useful in noisy locations.
The operation of the controller could be subject to further modification.
For example, a further time delay could be introduced before power is restored in order to prevent transitory noises from triggering the device.
Other activity sensors could also be used in place of, or in addition to, the sound detector, such as movement sensors of the kind which respond to heat, e.g. PIR sensors.
In another embodiment of the device (not shown) the plug 3 could be incorporated into the housing 4 so that the device plugs directly into a wall outlet. Such a device would normally have only a single outlet socket 5, although the device may have any number of outlets from one upwards It will be appreciated that the features disclosed herein may be present in any feasible combination. Whilst the above description lays emphasis on those areas which, in combination, are believed to be new, protection is claimed for any inventive combination of the features disclosed herein.
* * * * * * * *

Claims (13)

1. A power saving device having a power input for connection with an electrical power source and a power output to which at least one electrical appliance can be connected to receive power from the power input, and the device includes a first sensor responsive to visible light levels, a second sensor for detecting activity in the vicinity of the device, and timing means responsive to the first and second sensors to remove or substantially reduce the supply of power to the appliance or appliances when a low ambient light level has been maintained and no activity has been detected for the duration of a timing period.
2. A power saving device according to Claim I in which the second sensor includes a device for converting sounds into electrical signals.
3. A power saving device according to Claim 1 or 2 which includes switching means connected between the power input and the power output and which is operable by the said timing means to control the transmission of electrical power between the power input and the power output.
4. A power saving device according to Claim 3 in which the switching means includes an electromagnetic relay.
5. A power saving device according to any preceding claim including means for manually adjusting the duration of the said timing period. -11 -
6 A power saving device according to any preceding claim in which the timing means comprises an electronic controller.
7 A power saving device according to any preceding claim which includes means for manually overriding the timing means so that the supply of power to the appliance or appliances is maintained even if the ambient light level is low and no activity has been detected for the duration of said timing period.
8. A power saving device according to any preceding claim in which the timing means restores power to the appliance or appliances if the first sensor signals an increase in ambient light levels.
9. A power saving device according to any preceding claim in which the timing means restores power to the appliance or appliances if the second sensor detects activity in the vicinity.
10. A power saving device according to any preceding claim in which the power input includes an electrical plug and the power output includes an electrical socket.
11. A power saving device according to Claim 10 in which the power output includes a plural number of electrical sockets.
12. A power saving device according to any preceding -claim which includes a manual input control which can be used to select various modes of operation in which the device responds to light and sound, light only or sound only.
13. A power saving device which is substantially as described - 12- with reference to the drawings.
* * * * * * * *
GB0522725A 2005-04-14 2005-11-08 Power distribution device having light and sound sensors and timing means Withdrawn GB2425225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0507531.2A GB0507531D0 (en) 2005-04-14 2005-04-14 Power saving device

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GB0522725D0 GB0522725D0 (en) 2005-12-14
GB2425225A true GB2425225A (en) 2006-10-18

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GB0522725A Withdrawn GB2425225A (en) 2005-04-14 2005-11-08 Power distribution device having light and sound sensors and timing means

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2436979A (en) * 2007-05-09 2007-10-10 Andrew James Stanford-Clark Device for limiting standby power consumption
GB2443454A (en) * 2006-11-01 2008-05-07 Joshua Francis Seal Standby power energy - saving device
GB2457114A (en) * 2008-02-01 2009-08-05 Powertech Ind Co Ltd A power supply protection device with sound receiving function
WO2009097661A1 (en) * 2008-02-06 2009-08-13 Qwind Pty Ltd Power saving device
EP2249441A2 (en) * 2008-02-29 2010-11-10 Kim, Sun Young Plug socket
WO2010097580A3 (en) * 2009-02-24 2010-12-29 Powertrip Innovations Limited Electrical power management device
AU2010101028B4 (en) * 2009-09-02 2011-03-31 Mort Bay Traders Pty Ltd An energy saving sensor apparatus
CN102570129A (en) * 2010-12-21 2012-07-11 胜德国际研发股份有限公司 Power socket module
CN102832513A (en) * 2012-08-24 2012-12-19 刘举柱 Computer power socket with alarming function
CN103296539A (en) * 2012-02-24 2013-09-11 陈正裕 Timing extension cord set through external program
CN103746231A (en) * 2013-12-21 2014-04-23 柳州航盛科技有限公司 Timing-type intelligent socket
US8749093B2 (en) 2010-06-09 2014-06-10 Powertech Industrial Co., Ltd. Electric receptacle module
GB2515307A (en) * 2013-06-18 2014-12-24 John Halfpenny Improved electrical switching apparatus with switch-on prediction
EP2637483A3 (en) * 2012-03-08 2015-03-04 Sylvan R. Shemitz Designs, Inc. A control system for use with one or more building power circuits
CN105375212A (en) * 2015-12-10 2016-03-02 宁波大胜日用制品有限公司 Socket capable of automatically powering off
CN105406294A (en) * 2015-12-10 2016-03-16 宁波大胜日用制品有限公司 Socket convenient to use at night
CN105762585A (en) * 2014-12-17 2016-07-13 胡建辉 Novel light-emitting electric socket
DE102016225440B3 (en) 2016-12-19 2018-05-30 Koke GmbH Apparatus and method for detecting a network connection failure

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EP0093810A1 (en) * 1982-05-06 1983-11-16 National Technical Systems Monitoring the presence of human activity in an environment
EP0120507A1 (en) * 1983-01-25 1984-10-03 Willem Mechiel Wijk Energy-saving switching device
US4585339A (en) * 1983-11-28 1986-04-29 Sharp Kabushiki Kaisha Power control of electronic apparatus in response to surrounding brightness
WO2001030070A1 (en) * 1999-10-20 2001-04-26 Mahvi A Pascal Sensor unit for controlling television set operation
DE10008934A1 (en) * 2000-02-25 2001-09-06 Kugler Sascha Device for automatically switching electrical load e.g. lights on and off, has housing in form of socket strip and infrared sensor in form of separate element usable spatially separately from socket strip
US6509658B1 (en) * 1998-12-16 2003-01-21 Jinnes Technologies Inc. Device for the automatic shut-off of equipment's stand-by power
WO2004027749A1 (en) * 2002-09-17 2004-04-01 Koninklijke Philips Electronics N.V. Television power saving system with motion sensor

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Publication number Priority date Publication date Assignee Title
EP0093810A1 (en) * 1982-05-06 1983-11-16 National Technical Systems Monitoring the presence of human activity in an environment
EP0120507A1 (en) * 1983-01-25 1984-10-03 Willem Mechiel Wijk Energy-saving switching device
US4585339A (en) * 1983-11-28 1986-04-29 Sharp Kabushiki Kaisha Power control of electronic apparatus in response to surrounding brightness
US6509658B1 (en) * 1998-12-16 2003-01-21 Jinnes Technologies Inc. Device for the automatic shut-off of equipment's stand-by power
WO2001030070A1 (en) * 1999-10-20 2001-04-26 Mahvi A Pascal Sensor unit for controlling television set operation
DE10008934A1 (en) * 2000-02-25 2001-09-06 Kugler Sascha Device for automatically switching electrical load e.g. lights on and off, has housing in form of socket strip and infrared sensor in form of separate element usable spatially separately from socket strip
WO2004027749A1 (en) * 2002-09-17 2004-04-01 Koninklijke Philips Electronics N.V. Television power saving system with motion sensor

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2443454A (en) * 2006-11-01 2008-05-07 Joshua Francis Seal Standby power energy - saving device
GB2436979A (en) * 2007-05-09 2007-10-10 Andrew James Stanford-Clark Device for limiting standby power consumption
GB2436979B (en) * 2007-05-09 2008-04-02 Andrew James Stanford-Clark Standby power consumption limiting device
WO2008139215A1 (en) * 2007-05-09 2008-11-20 Eco Technology Corporation Standby power consumption limiting device
GB2457114B (en) * 2008-02-01 2010-04-28 Powertech Ind Co Ltd Power supply protection device with radio receiving function
GB2457114A (en) * 2008-02-01 2009-08-05 Powertech Ind Co Ltd A power supply protection device with sound receiving function
WO2009097661A1 (en) * 2008-02-06 2009-08-13 Qwind Pty Ltd Power saving device
GB2469780A (en) * 2008-02-06 2010-10-27 Qwind Pty Ltd Power saving device
EP2249441A4 (en) * 2008-02-29 2013-04-24 Kim Sun Young Plug socket
EP2249441A2 (en) * 2008-02-29 2010-11-10 Kim, Sun Young Plug socket
WO2010097580A3 (en) * 2009-02-24 2010-12-29 Powertrip Innovations Limited Electrical power management device
GB2479855A (en) * 2009-02-24 2011-10-26 Powertrip Innovations Ltd Electrical power management device
AU2010101028B4 (en) * 2009-09-02 2011-03-31 Mort Bay Traders Pty Ltd An energy saving sensor apparatus
US8749093B2 (en) 2010-06-09 2014-06-10 Powertech Industrial Co., Ltd. Electric receptacle module
CN102570129A (en) * 2010-12-21 2012-07-11 胜德国际研发股份有限公司 Power socket module
CN102570129B (en) * 2010-12-21 2014-10-22 胜德国际研发股份有限公司 Power socket module
CN103296539A (en) * 2012-02-24 2013-09-11 陈正裕 Timing extension cord set through external program
EP2637483A3 (en) * 2012-03-08 2015-03-04 Sylvan R. Shemitz Designs, Inc. A control system for use with one or more building power circuits
US9236738B2 (en) 2012-03-08 2016-01-12 Sylvan R. Shemitz Designs, Llc Control system for use with one or more building power circuits
CN102832513A (en) * 2012-08-24 2012-12-19 刘举柱 Computer power socket with alarming function
GB2515307A (en) * 2013-06-18 2014-12-24 John Halfpenny Improved electrical switching apparatus with switch-on prediction
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CN105375212A (en) * 2015-12-10 2016-03-02 宁波大胜日用制品有限公司 Socket capable of automatically powering off
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