EP3637028A1 - Système de contrôle d'accès à travers une porte d'un réfrigérateur - Google Patents

Système de contrôle d'accès à travers une porte d'un réfrigérateur Download PDF

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Publication number
EP3637028A1
EP3637028A1 EP18199785.9A EP18199785A EP3637028A1 EP 3637028 A1 EP3637028 A1 EP 3637028A1 EP 18199785 A EP18199785 A EP 18199785A EP 3637028 A1 EP3637028 A1 EP 3637028A1
Authority
EP
European Patent Office
Prior art keywords
refrigerator
door
thermal
processing unit
access
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
EP18199785.9A
Other languages
German (de)
English (en)
Other versions
EP3637028B1 (fr
Inventor
Ahmet Yalcin
Engin Findikli
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.)
Vestel Elektronik Sanayi ve Ticaret AS
Original Assignee
Vestel Elektronik Sanayi ve Ticaret AS
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Publication date
Application filed by Vestel Elektronik Sanayi ve Ticaret AS filed Critical Vestel Elektronik Sanayi ve Ticaret AS
Priority to EP18199785.9A priority Critical patent/EP3637028B1/fr
Publication of EP3637028A1 publication Critical patent/EP3637028A1/fr
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Publication of EP3637028B1 publication Critical patent/EP3637028B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/006—Safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/04—Sensors detecting the presence of a person

Definitions

  • This invention refers to a system according to claim 1, and a refrigerator having the system according to the claim 12, and a method for providing a refrigerator with an access control to a door of the refrigerator according to the claim 13.
  • a refrigerator is a home appliance which stores food at a low temperature in a storage space formed therein to be opened and closed by a door. Tightness between the refrigerator compartment will have considerable impact on the indoor temperature, and thus will affect the storage effect between the refrigerator compartment.
  • US Patent Publication No. US7728711 discloses a remotely or locally refrigerator door lock which has a body portion that is attached to the cabinet and a door portion that is attached to an edge of the door. A latch in the body portion engages a strike plate in the door portion and can be lifted out of engagement to open the refrigerator.
  • the door lock assembly may be connected to a touch-screen device or via a USB or ethernet connection to a remote host computer. The host computer keeps an audit trail of the times and personnel accessing each refrigerator, and a temperature audit trail.
  • the system may be used in hospital for controlling access to pharmaceuticals or may be used in a weight loss program. Temperature and humidity sensors are positioned within the refrigerator cabinet.
  • the door lock may have battery power for portable or mobile applications. This prior art even though provides a control access to refrigerator or freezer based on the high threshold value, however, this high threshold value reduces ease of access to people above a certain weight.
  • a weight control program where access to food is limited to meal times so as to prevent or discourage snacking.
  • US Patent Publication No. US9427097 discloses a temperature-controlled display device which includes a temperature-controlled space and a refrigeration circuit configured to provide cooling for the temperature-controlled space.
  • the refrigeration circuit is configured to operate in multiple cooling modes including a normal refrigeration mode and an anti-ingression mode.
  • a proximity sensor is configured to detect an object such as a human hand or forearm within a detection zone adjacent to a door handle of the temperature-controlled display device.
  • a controller estimates a distance between the handle and the detected object using an input from the proximity sensor. The controller causes the refrigeration circuit to transition between the multiple cooling modes based on the estimated distance.
  • This prior art provides a proximity sensor to detect the heat imparted to a fridge handle to determine whether the door is about to be opened using the estimated distance and cause the refrigeration circuit to transition into the anti-ingression mode in response to a determination that the door is about to be opened.
  • US Patent Publication No. US6745581 discloses a control unit of a refrigeration system which receives and records activity data such as door openings and/or human presence detection in the vicinity of the refrigeration system, and then establishes the beginning and end times of an energy saving mode for the refrigeration system over a period of time, such as a week.
  • the control unit calculates the time to restart the compressor cycle at the end of the energy saving mode so that the product will be at the correct temperature at the time of first usage.
  • the lamps and fans in the refrigeration system are controlled independently by the control unit according to the activity data. This prior art provides how to save energy for the refrigeration system over a period of time.
  • It is therefore an object of the present invention is to provide an efficient control of access to a refrigerator, more specifically to kids, for maintaining cooling inside the refrigerator.
  • a system for controlling access to the content of a refrigerator comprising a thermal sensor that is adapted to detect a thermal parameter from an environment of a door of the refrigerator and a processing unit adapted to receive and process the thermal parameter and to determine whether to allow access to the content of the refrigerator or not.
  • the invention provides a mechanism for control accessing or opening of the door of the refrigerator by using thermal parameters.
  • a person with more weight shall be having more amount of heat and thus shall transfer more amount of heat, hence thermal parameter generated in such scenario shall be of higher value. Accordingly, for a person with lower weight, the thermal parameter generated shall have lower value.
  • the weight of a kid shall be substantially lower with respect to a teenager or an adult.
  • access control can be placed for kids upto a particular age which means that kid having a small amount of heattransfer can be exculded from being able to open the refigerator door.
  • the processing unit can even use the access control for any one who is over weight or is on diet control.
  • the processing unit is adapted to receive a threshold value and adapted to compare the thermal parameter with the threshold value, and adapted to determine whether to allow access to the content of the refrigerator or not based on the comparison between the threshold value (7) and the thermal parameter (4) wherein a locking unit is used to lock or unlock the refrigerator that is controlled by the processing unit.
  • This embodiment is beneficial as it standarize the access control based on a specific threshold data.
  • the processing unit is adapted to receive the thermal parameters for a predefined period of time, and to process the thermal parameters received and to determine whether to allow access to the refrigerator or not.
  • This embodiment is helpful as it provides accuracy to the access control mechanism, by eliminating all the scenarios of accidential touch of the refrigerator.
  • the human hand has to be in touch to the refrigerator for the predefined period of time.
  • the system considers thermal parameters captured for the predefined period of time to determine whether to allow access to refrigerator or not.
  • processing unit is adapted to process the thermal parameters and to determine a consolidate parameter, to receive a threshold value, to compare the consolidated parameter and the threshold value, and to determine whether to allow access to the refrigerator or not.
  • This embodiment is beneficial as it provides an easy and efficient mechanism to process the thermal parameters captured during the pedefined period of time.
  • the thermal sensor is a temperature sensor, and is adapted to detect a temperature parameter from the environment of a door of the refrigerator.
  • This embodiment is helpful as it provides an efficient mechanism to capture the thermal parameter in form of temperature.
  • thermal sensor is a heat sensor, and is adapted to detect a heat parameter from the environment of a door of the refrigerator.
  • This embodiment is helpful as it provides an efficient mechanism to capture the thermal parameter in form of heat.
  • the thermal sensor is placed in proximity to at least one of the edges of the refrigerator.
  • This embodiment is helpful as it takes user behavious in consideration, and thus provides for efficient capturing of thermal parameters. Because whenever any individual tries to access the refrigerator, many times they use edges of the refrigerator to open the door. So, if sensors are present near to the edges then sensing thermal parameter will be efficient. Especially for small children, when they try to open the door, because of the difference in there height and placement of handle of the door, they tend to use edges of the refrigerator for opening door of the refrigerator.
  • thermal sensor is placed in proximity to an opposite edge of the refrigerator which is opposite to a hinged edge of refrigerator around which the door of the refrigerator hinges.
  • This embodiment is helpful as it further enhances efficiency of capturing the thermal parametr, by considering user behavious of opening of the door of refrigerator by pulling edge of the door which opposite to the hinged edge of the door.
  • thermal sensor is placed in proximity to a handle of the door of the refrigerator.
  • This embodiment is helpful as it considers scenario when the handles are on the lower height and even kids shall tend to access the door by accessing handle of the refrigerator. Hence, in such scenario also the thermal parameter shall be efficiently captured.
  • the processing unit is adapted to receive and process a set of thermal parameters at different time intervals and adapted to determine the threshold data.
  • This embodiment is helpful as it provides a self learning system for identifying the threshold data based on the thermal parameters captured historically.
  • the processing unit is adapted to generate a trigger, if the processing unit has determined for not allowing the access to the refrigerator, the system further comprising a locking unit adapted to lock or unlock the door of the refrigerator; and a controller adapted to receive the trigger and to trigger the locking unit for locking the door of the refrigerator.
  • a refrigerator of claim 12 which is comprising the system for controlling access to refrigerator according to any of the claims 1 to 11.
  • the before mentioned object is also solved by a method for providing a refrigerator with an access control to a door of the refrigerator according to claim 13.
  • the method comprising:
  • the method comprising of
  • the method comprising of coupling a memory unit to the processing unit, the memory unit stores one or more threshold values, wherein the processing unit is adapted to receive the threshold value from the memory unit and adapted to compare the thermal parameter with the threshold value, and adapted to determine whether to allow access to the refrigerator or not.
  • Fig. 1 illustrates a system for a system for accessing control of a refrigerator, according to an embodiment of the invention.
  • the present invention focuses on controlling access to the content of a refrigerator.
  • the control of access to refrigerators is many times required for certain category of users. With respect to kids, the access control is required for maintaining inside cooling of the refrigerator. For people on diets, they generally tend to access the refrigerator due to their hunger instincts, hence for them also the access to refrigerator is required to be controlled.
  • the control is carried out with respect to the weight of the user of the refrigerator. For a certain weight threshold or range, the access can be restricted which means that access to the refrigerator for kids of young age and thus small weight can be denied.
  • the invention utilizes thermodynamics principle, according to which the heat generated is proportional to mass of a user. Accordingly, the amount of heat transferred to a door of the refrigerator when a user opens the door of the refrigerator, is dependent on his mass or weight. The invention utilizes this heat transferred to determine whether the user should be allowed to access the refrigerator or not.
  • Fig. 1 shows a side view of a refrigerator 2 along with a system 1 to control access of the refrigerator 2.
  • the refrigerator 2 is having a door 5, by opening which the access to inside of the refrigerator is enabled.
  • a locking unit 15 is provided which is coupled to the door 5 of the refrigerator and is enabled to lock or unlock the door, so as to control access to the refrigerator 2.
  • the locking unit 15 is provided on an opposite edge 10 which is opposite to the hinged edge. It is to be noted that the locking unit 15 can be coupled to any of the other edges 9 of the refrigerator for locking or unlocking the door 5.
  • the locking unit 15 is shown to be coupled to the door from outside. In an alternate embodiment, the locking unit 15 can be placed inside the refrigerator 2 and coupled to any of the edges 9 from inside the refrigerator 2. In yet another embodiment, the locking unit 15 need not be presented as any external element or additional element, rather locking mechanism of the refrigerator 2 can be used as the locking unit 15.
  • the door 5 of the refrigerator 2 also has a handle 12, with which the opening of the door 5 can be facilitated.
  • a thermal sensor 3 is physically coupled to the handle 12 of the refrigerator. Due to that the thermal sensor can optimally capture a thermal parameter 4 which is related to current heat of the handle 12. Current heat of the handle 12 is based on the heat transferred by hand of the user while the user is handling the handle 12 to open the refrigerator.
  • the thermal sensor 3 can be provided on any of the edges 9 of the refrigerator also along the handle 12, or just on any of the edges 9. It should be appreciated that it is another of the user behavior to access the door 5 of the refrigerator 2 by pulling any of the edges 9 instead of the handle 12.
  • the appropriate place for placement of the thermal sensor 3 is the opposite edge 10 opposite to the hinged edge along which the door hinges, as according user behavior most used edge 9 of the refrigerator for pulling the door 5 is the opposite edge 10.
  • the thermal sensor 3 is further coupled to a processing unit 6 which receives the thermal parameter 4 from the thermal sensor 4 and processes it.
  • the processing unit 6 retrieves a threshold value 7 from a memory unit 13 which stores it.
  • the processing unit 6 processes the thermal parameter 4 and the threshold value 7 by comparing both of them, and based on the comparison the processing unit 6 determines whether it should allow the user to access the refrigerator 2 or not.
  • more than one threshold value 7 can be stored in the memory unit 13, and the system 1 can be configured with various threshold values based on various programs running on the system 1, out of which one can be for restrictive access to the kids, another can be for those who are overweight and are on weight management, and yet another can be for restrictive usage of access of the refrigerator in night for a specific weight category people.
  • the system 1 can be configured with various such programs.
  • the system 1 can also self-learn to adapt for access control of the refrigerator 2. It should be noted that average weight of kids and adults can vary significantly in different households, in different countries, and one threshold value 7 cannot work for all. Rather, for better optimization the system should be enabled to self-learn for whom to allow access, and for whom to disallow access.
  • the self-learning is generally feedback based, where whenever there is a false positive according to a program running, a feedback can be given to the system 1 for the error it has made. Accordingly, the system shall correct itself for the next time by optimizing its threshold value 7 by considering and processing various thermal parameters 4 captured in different time frames. In another scenario, the feedback for false positive is not provided, rather the system itself analyzes the thermal parameters collected by it during different time period to categorize different weight categories, and identifying a threshold value 7 based on thermal parameters 4 of a particular weight category.
  • the thermal sensor 3 is a temperature sensor, and senses temperature parameter from an environment of the door of the refrigerator.
  • the thermal sensor 3 is a heat sensor, and senses heat parameter from an environment of the door of the refrigerator.
  • the processing unit 6 processes set of thermal parameters 4 captured during a predefined time period when a hand of a user handles the door 5 of the refrigerator 2, and based on that determines whether to allow access to the refrigerator 2 or not.
  • the processing unit 6 processes the set of parameters to generate a consolidated parameter 8 and uses this consolidated parameter 8 to compare with the threshold value 7, for determining whether to allow access to the refrigerator 2 or not.
  • the consolidated parameter 8 can be change in temperature when temperature sensor is used as thermal sensor to capture the temperature parameter from an environment of the door of the refrigerator 2.
  • the consolidated parameter can be total heat generated while accessing the door 5 of the refrigerator when heat sensor is used as thermal sensor.
  • the consolidated parameter 8 is not generated, rather the processing unit 6 uses individual thermal parameter from the set of thermal parameters to determine allowing access or not to the refrigerator 2.
  • the processing unit 6 uses instantaneous thermal parameter 4 captures at any one instance when a user tries to open the door of the refrigerator, and processes that thermal parameter to determine allowing or disallowing access to the refrigerator.
  • the processing unit 6 is also coupled to a controller 11, and the controller 11 is further coupled to the locking unit 15. After determining the access to the refrigerator 2, the processing unit 6 generates a trigger 14 which is received by the controller 11. The controller 11 processes the trigger 14 and directs the locking unit 15 to lock the door of the refrigerator 2. In one embodiment, the locking unit 15 is not provided, rather the controller 11 raises an alarm based on processing of the trigger 14. In another embodiment, the controller 11 is also not provided rather the processing unit 6 directly triggers refrigerators own locking mechanism to lock the refrigerator.
  • the present invention provides for a system 1 for controlling access to a refrigerator 2 which includes a thermal sensor 3 and a processing unit 6.
  • the thermal sensor 3 detects a thermal parameter 4 from an environment of a door 5 of the refrigerator 2.
  • the processing unit 6 receives and processes the thermal parameter 4 and determines whether to allow access to the refrigerator 2 or not.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP18199785.9A 2018-10-11 2018-10-11 Système de contrôle d'accès à travers une porte d'un réfrigérateur Active EP3637028B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18199785.9A EP3637028B1 (fr) 2018-10-11 2018-10-11 Système de contrôle d'accès à travers une porte d'un réfrigérateur

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Application Number Priority Date Filing Date Title
EP18199785.9A EP3637028B1 (fr) 2018-10-11 2018-10-11 Système de contrôle d'accès à travers une porte d'un réfrigérateur

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EP3637028A1 true EP3637028A1 (fr) 2020-04-15
EP3637028B1 EP3637028B1 (fr) 2023-09-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230018504A1 (en) * 2013-01-18 2023-01-19 Triteq Lock And Security, L.L.C. Cooler lock

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010092059A (ko) * 2000-03-20 2001-10-24 구자홍 냉장고용 도어 열림/잠김 자동제어장치
DE10237132A1 (de) * 2002-08-13 2004-02-26 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit biometrischer Personenidentifikationseinrichtung
US6745581B2 (en) 2002-09-16 2004-06-08 The Coca-Cola Company Systems and methods for temperature control in refrigeration systems and heating systems
WO2007011178A1 (fr) * 2005-07-20 2007-01-25 Lg Electronics Inc. Porte de refrigerateur et son procede de fabrication
US7728711B2 (en) 2006-03-29 2010-06-01 S&S X-Ray Products, Inc Remotely or locally actuated refrigerator lock with temperature and humidity detection
EP2902733A1 (fr) * 2012-09-27 2015-08-05 Kabushiki Kaisha Toshiba Réfrigérateur
US9427097B2 (en) 2014-05-22 2016-08-30 Hill Phoenix, Inc. Refrigeration control using a door handle proximity sensor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010092059A (ko) * 2000-03-20 2001-10-24 구자홍 냉장고용 도어 열림/잠김 자동제어장치
DE10237132A1 (de) * 2002-08-13 2004-02-26 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit biometrischer Personenidentifikationseinrichtung
US6745581B2 (en) 2002-09-16 2004-06-08 The Coca-Cola Company Systems and methods for temperature control in refrigeration systems and heating systems
WO2007011178A1 (fr) * 2005-07-20 2007-01-25 Lg Electronics Inc. Porte de refrigerateur et son procede de fabrication
US7728711B2 (en) 2006-03-29 2010-06-01 S&S X-Ray Products, Inc Remotely or locally actuated refrigerator lock with temperature and humidity detection
EP2902733A1 (fr) * 2012-09-27 2015-08-05 Kabushiki Kaisha Toshiba Réfrigérateur
US9427097B2 (en) 2014-05-22 2016-08-30 Hill Phoenix, Inc. Refrigeration control using a door handle proximity sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230018504A1 (en) * 2013-01-18 2023-01-19 Triteq Lock And Security, L.L.C. Cooler lock
US11629905B2 (en) * 2013-01-18 2023-04-18 Triteq Lock And Security, Llc Cooler lock

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