US20070157643A1 - Household appliance and method for determining a cause of failure on this appliance - Google Patents

Household appliance and method for determining a cause of failure on this appliance Download PDF

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Publication number
US20070157643A1
US20070157643A1 US10/582,922 US58292204A US2007157643A1 US 20070157643 A1 US20070157643 A1 US 20070157643A1 US 58292204 A US58292204 A US 58292204A US 2007157643 A1 US2007157643 A1 US 2007157643A1
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US
United States
Prior art keywords
household appliance
memory
interface
cause
fault
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.)
Abandoned
Application number
US10/582,922
Other languages
English (en)
Inventor
Athanasios Athanasiou
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.)
BSH Hausgeräte GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of US20070157643A1 publication Critical patent/US20070157643A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Program-control systems
    • G05B19/02—Program-control systems electric
    • G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428—Safety, monitoring
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • G01D9/00—Recording measured values
    • G01D9/005—Solid-state data loggers
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • 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
    • F25D2700/12—Sensors measuring the inside temperature
    • 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
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/122—Sensors measuring the inside temperature of freezer compartments
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24048—Remote test, monitoring, diagnostic
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24055—Trace, store a working, operation history
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/26—Pc applications
    • G05B2219/2613—Household appliance in general

Definitions

  • the present invention relates to a household appliance and a method for determining the cause of failure on such an appliance.
  • appliances of this type are necessarily distinguished by additional functions which are frequently the result of comparatively recent technical developments which have not yet achieved the same degree of maturity and reliability as functions which have formed the standard equipment of these appliances for many years. This problem is further exacerbated by the fact that customer service staff who may be responsible for repairing faults in this equipment cannot be familiar with new developments to the same extent as old established technology, so that the risk of an incorrect diagnosis and consequently an unsuccessful repair attempt is comparatively high.
  • a so-called diagnostic box for fault diagnosis on a household appliance a device which is connected to an interface of the household appliance provided for this purpose and repeatedly reads out measured values detected by various sensors of the household appliance from which it is expected that an indication of the cause of a fault can be obtained.
  • Such a device must be installed by customer service in each case. This naturally only occurs when a fault has already occurred. If the fault is sporadic and is not repeated as long as a customer service employee with the diagnostic box is on site, its use is in vain and a repair can be made in any case on suspicion as specified above.
  • the object is solved on the one hand by a household appliance having at least one sensor for detecting at least one operating parameter of the household appliance, a memory connected permanently to the sensor for periodically recording the value of the operating parameter detected by the sensor and an interface for reading out the content of the memory.
  • the memory allows the function of the device to be monitored continuously in principle over an arbitrarily long period of time according to the capacity of the memory so that comprehensive data are available for determining the cause of a fault, which can extend over a substantially longer period of time than that which a service engineer can reasonably stay on site to observe the appliance.
  • a single parameter will preferably be recorded but a plurality of interrelated parameters so that a cause of a fault can be concluded not only from the detected values of the operating parameters but also from a regular deviation of the relationships of the operating parameters among one another.
  • the interface could also be used to connect a diagnostic box thereto, where in this case the diagnostic box must be designed not only to read out the measured values recorded continuously by at least one sensor but also the contents of the memory.
  • the interface to the data network should preferably be cordless to allow comfortable use.
  • This interface can, for example, comprise a terminal of a cellular radio system or an infrared interface or a short-range radio interface, possibly using the bluetooth standard which communicates with a complementary interface connected to a long-range data network for transmission to the service centre.
  • the method according to the invention comprises the steps of periodically detecting at least one operating parameter of the household appliance and recording the detected value in a memory, reading out the memory in the case of a fault and tracing the cause of the fault from the parameter values which are read out.
  • the amount of data of the values to be recorded is small, in principle a memory could be used whose capacity is sufficient for the amount of data accumulating during the expected lifetime of the appliance.
  • the recorded parameter values are automatically deleted after a predetermined time to make memory space available for the most recent parameter values. It can be appropriate to carry out this deletion in several steps, by first merely decimating the recorded parameter values after a first predetermined memory time and only definitively deleting them at a later time. The decimation can take place in several steps if desired.
  • FIG. 1 is a schematic diagram of a refrigerating device as a first embodiment of the present invention.
  • FIG. 1 is a highly schematic diagram of a refrigerating device comprising a freezing compartment 1 and a normal chilled compartment 2 and, representing various possible functional groups of the refrigerating device to be monitored, a compressor 3 .
  • Control electronics 4 control the operation of the compressor 3 in a conventional fashion using measured temperature values recorded using temperature sensors 5 , 6 in the freezing compartment I or the normal chilled compartment 2 .
  • a monitoring and diagnostic electronic system 7 and the control electronics 4 are arranged on two different printed circuit boards here. This separation has the advantage that the operation of the refrigerating device can be controlled by conventional control electronics 4 not according to the invention so that a standard model of monitoring and diagnostic electronics 7 can be used for a plurality of different types of refrigerating devices.
  • the monitoring and diagnostic electronics 7 is connected to the same sensors for detecting operating parameters as the control electronics 4 , in this case to the temperature sensors 5 , 6 and optionally to other sensors, e.g. a temperature sensor 8 which is disposed at the compressor 3 for monitoring its temperature.
  • the control electronics 4 is implemented as a microcontroller system comprising a microcontroller and a random access memory connected to the microcontroller by means of a bus
  • the monitoring and diagnostic electronics 7 can also be connected to this bus in order to read values of variables used by the control electronics 4 , logic flags or other operating parameters of the refrigerating device, input by the control electronics 4 into the memory cells of this random access memory and in this way obtain data which make it possible to check the correct functioning of the control electronics 4 .
  • an EEPROM 9 Connected to the monitoring and diagnostic electronics 7 is an EEPROM 9 into which the monitoring and diagnostic electronics 7 inputs data detected at regular time intervals.
  • the storage capacity of the EEPROM 9 is dimensioned depending on the frequency with which the data are recorded and their scope so that data recorded over a time interval of one to several days can be recorded therein. If the parameter values are recorded every two minutes, for example, with suitable data compression a EEPROM 9 of 512 KByte is sufficient to log all the operating parameters of a refrigerating device relevant to diagnosis during a period of 30 days.
  • the EEPROM 9 can be composed of a plurality of memory modules mounted on a common printed circuit board.
  • the same printed circuit board having a plurality of receiving locations prepared for the memory modules can be used for a plurality of different models of household appliances; depending on the number of parameters to be recorded on different models of household appliances, their memory requirement and the desired time resolution or memory duration, a different number of these receiving locations can be loaded with memory modules on the finished appliance.
  • a battery-buffered RAM can also be used for storing the parameter values.
  • Data more than 30 days old are no longer considered to be relevant for the fault diagnosis and are overwritten page-wise with new data. If storage over longer time intervals is desired, it can also be provided that after a predetermined storage time, the monitoring electronics 7 first reads old data out from the EEPROM 9, decimates this, in each case discarding the data from n-1 measuring time points and retaining the n-th time point, thereby overwriting older data.
  • the monitoring electronics 7 can be fitted with a user interface which allows a user to specify areas of the EEPROM 9 content corresponding to specific monitoring time intervals which are to be excluded from decimation and deletion possibly because they document the occurrence of a sporadic fault.
  • the monitoring electronics 7 is connected to a cordless interface, here an infrared interface 10 via which it can receive an inquiry request of an external reader (not shown) and deliver the content of the EEPROM 9 via the interface 10 to the reader as a response to this request.
  • the reader can, for example, be a laptop of a customer service employee fitted with a complementary interface which visualises the received data and thus makes it easier for the customer service employee to identify regular deviations of this data.
  • the reader can also be a computer of the user which is fitted on the one hand with an interface complementary to the IR interface 10 and on the other hand with an interface to a telephone network via which it transmits data received by the monitoring electronics 7 to a remote service centre. These data allow the service centre to determine the cause of the fault.
  • the refrigerating device itself can also be equipped with an interface to a telephone network, to a local data network of the user or the like.
  • an increasing number of devices is fitted with these interfaces so that the present invention can be achieved on those devices with a minimum financial expenditure and at the same time, a high degree of comfort.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Selective Calling Equipment (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
US10/582,922 2003-12-15 2004-12-07 Household appliance and method for determining a cause of failure on this appliance Abandoned US20070157643A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10358732.2 2003-12-15
DE10358732A DE10358732A1 (de) 2003-12-15 2003-12-15 Haushaltsgerät und Verfahren zum Ermitteln einer Störungsursache an einem solchen Gerät
PCT/EP2004/053307 WO2005057302A2 (de) 2003-12-15 2004-12-07 Haushaltsgerät und verfahren zum ermitteln einer störungsursache an einem solchen gerät

Publications (1)

Publication Number Publication Date
US20070157643A1 true US20070157643A1 (en) 2007-07-12

Family

ID=34672763

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/582,922 Abandoned US20070157643A1 (en) 2003-12-15 2004-12-07 Household appliance and method for determining a cause of failure on this appliance

Country Status (5)

Country Link
US (1) US20070157643A1 (de)
EP (1) EP1697688A2 (de)
CN (1) CN1894549B (de)
DE (1) DE10358732A1 (de)
WO (1) WO2005057302A2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080059003A1 (en) * 2006-08-30 2008-03-06 Doberstein Andrew J Cooling unit with data logging control
CN104949467A (zh) * 2015-07-08 2015-09-30 合肥美的电冰箱有限公司 主控板故障检测电路和冰箱
DE102016208382A1 (de) * 2016-05-17 2017-11-23 BSH Hausgeräte GmbH System zur Implementierung eines verfahrenstechnischen Prozesses auf einem Hausgerät

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8332819B2 (en) * 2007-05-03 2012-12-11 Siemens Industry, Inc. Diagnostic and trouble-shooting methods in a wireless control and sensor network
DE102008041014A1 (de) 2008-08-05 2010-02-11 BSH Bosch und Siemens Hausgeräte GmbH Kühlgerät mit Temperierfunktion
DE102008041018A1 (de) 2008-08-05 2010-02-11 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit vereinfachter Wartung
DE102010002877B4 (de) 2010-03-15 2017-11-23 BSH Hausgeräte GmbH Verfahren zum Betreiben eines Haushaltsgeräts und Haushaltsgerät
US9225766B2 (en) 2010-10-29 2015-12-29 Sears Brands, L.L.C. Systems and methods for providing smart appliances
US20130232374A1 (en) * 2012-03-02 2013-09-05 Sony Network Entertainment International Llc Remotely servicing and diagnosing electronic devices
CN103581952A (zh) * 2013-11-25 2014-02-12 广州视声电子实业有限公司 一种智能家居设备及执行诊断的方法
CN105627668B (zh) * 2015-12-25 2018-05-29 青岛海尔股份有限公司 冰箱
DE102017000203A1 (de) * 2016-10-14 2018-04-19 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
EP3309477A1 (de) * 2016-10-14 2018-04-18 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder gefriergerät
CN114248995A (zh) * 2020-09-22 2022-03-29 佳能医疗系统株式会社 生化分析装置以及试药库

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482785A (en) * 1982-09-23 1984-11-13 Finnegan Christopher D Refrigeration monitor system with remote signalling of alarm indications
US5934088A (en) * 1997-09-02 1999-08-10 Hoshizaki Denki Kabushiki Kaisha Error monitoring apparatus in refrigerator
US6438973B1 (en) * 2000-05-01 2002-08-27 Hoshizaki America, Inc. Control board alarms
US6553774B1 (en) * 1997-09-18 2003-04-29 Matsushita Refrigeration Company Self-diagnosing apparatus for refrigerator
US20040051625A1 (en) * 2002-07-06 2004-03-18 Peter Nass Apparatus for remote interrogation and/or remote control of an operating state of a device, especially a household appliance
US7173513B2 (en) * 2001-01-25 2007-02-06 Bsh Bosch Und Siemens Hausgeraete Gmbh Electrical appliance with communication interface

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8329622D0 (en) * 1983-11-05 1983-12-07 Systematic Micro Ltd Temperature monitoring system
TW593950B (en) * 2000-09-11 2004-06-21 Toshiba Corp Remote inspection system for refrigerator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482785A (en) * 1982-09-23 1984-11-13 Finnegan Christopher D Refrigeration monitor system with remote signalling of alarm indications
US5934088A (en) * 1997-09-02 1999-08-10 Hoshizaki Denki Kabushiki Kaisha Error monitoring apparatus in refrigerator
US6553774B1 (en) * 1997-09-18 2003-04-29 Matsushita Refrigeration Company Self-diagnosing apparatus for refrigerator
US6438973B1 (en) * 2000-05-01 2002-08-27 Hoshizaki America, Inc. Control board alarms
US7173513B2 (en) * 2001-01-25 2007-02-06 Bsh Bosch Und Siemens Hausgeraete Gmbh Electrical appliance with communication interface
US20040051625A1 (en) * 2002-07-06 2004-03-18 Peter Nass Apparatus for remote interrogation and/or remote control of an operating state of a device, especially a household appliance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080059003A1 (en) * 2006-08-30 2008-03-06 Doberstein Andrew J Cooling unit with data logging control
US7878009B2 (en) * 2006-08-30 2011-02-01 U-Line Corporation Cooling unit with data logging control
CN104949467A (zh) * 2015-07-08 2015-09-30 合肥美的电冰箱有限公司 主控板故障检测电路和冰箱
DE102016208382A1 (de) * 2016-05-17 2017-11-23 BSH Hausgeräte GmbH System zur Implementierung eines verfahrenstechnischen Prozesses auf einem Hausgerät
DE102016208382B4 (de) 2016-05-17 2024-05-29 BSH Hausgeräte GmbH System zur Implementierung eines verfahrenstechnischen Prozesses auf einem Hausgerät

Also Published As

Publication number Publication date
CN1894549B (zh) 2010-05-05
EP1697688A2 (de) 2006-09-06
CN1894549A (zh) 2007-01-10
WO2005057302A3 (de) 2005-07-28
WO2005057302A2 (de) 2005-06-23
DE10358732A1 (de) 2005-07-14

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