CN104062135A - Refrigerator fault detecting method and system - Google Patents
Refrigerator fault detecting method and system Download PDFInfo
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- CN104062135A CN104062135A CN201410277176.1A CN201410277176A CN104062135A CN 104062135 A CN104062135 A CN 104062135A CN 201410277176 A CN201410277176 A CN 201410277176A CN 104062135 A CN104062135 A CN 104062135A
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Abstract
The invention discloses a refrigerator fault detecting method. The method includes the steps of firstly, detecting the first temperature of a refrigerating chamber when a ventilation door is closed; secondly, detecting the second temperature of the refrigerating chamber after preset time is delayed; thirdly, judging whether the ventilation door is closed tightly or not according to the first temperature and the second temperature; fourthly, controlling the ventilation door to be closed if not; fifthly, repeatedly executing the second step, the third step and the fourth step till the number of times of controlling the ventilation door to be closed reaches the preset number, and judging that the ventilation door fails and giving an alarm if the ventilation door still can not be closed tightly. According to the method, it can be detected that the ventilation door fails, whether the ventilation door fails or not can be detected and an alarm can be given so that inhaul can be rapidly and conveniently conducted, normal use of a refrigerator is prevented from being influenced, and running reliability of the refrigerator is improved. The invention further provides a refrigerator fault detecting system.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, particularly a kind of fault detection method of refrigerator and system.
Background technology
For wind cooling refrigerator, control mode is for example: when refrigerating chamber need to freeze separately: refrigeration air door is closed, freezing blower fan running; When reefer need to freeze separately: reefer air door is opened, freezing blower fan running; When refrigerating chamber and reefer need to freeze simultaneously: freezing blower fan running reefer air door is opened.
When refrigerating chamber need to freeze separately and refrigerating chamber and reefer while not needing to freeze, freezing blower fan can turn round, air door can be closed, but airdoor control signal be interfered or during damper faults air door may normally close or close tight, thereby cause the temperature in reefer to occur extremely, affecting the normal use of refrigerator.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.
For this reason, one object of the present invention is to propose a kind of fault detection method of refrigerator.It is that air door is out of joint that the method can detect, thereby detect air door, whether has fault, and reports to the police so that maintenance rapidly avoids affecting the normal use of refrigerator, improves the operational reliability of refrigerator.
Another object of the present invention is to propose a kind of fault detection system of refrigerator.
To achieve these goals, the embodiment of a first aspect of the present invention discloses a kind of fault detection method of refrigerator, described refrigerator comprises: refrigerating chamber, reefer, air channel and air door, described air channel is located between described refrigerating chamber and reefer, described air door is used for opening and closing described air channel, said method comprising the steps of: A: when described air door is closed, detect the first temperature of reefer; B: after delay predetermined time, detect the second temperature of described reefer; C: judge according to described the first temperature and the second temperature whether described air door is closed tight; D: if judge that described air door do not close tight, control described air door and close; E: repeat described step B to step D until controlling after number of times that described air door closes reaches pre-determined number, if judge that described air door still do not close tight, judge that described air door exists fault and reports to the police.
According to the fault detection method of the refrigerator of the embodiment of the present invention, the temperature variations that can close rear reefer according to air door (for example, if air door is normally closed and is closed tight, As time goes on, temperature in reefer will be more and more higher within the specific limits), judge cold draining is closed or existed to air door whether tight, and when judgement air door is not closed tight, can control that air door is closed once again or repeatedly, if once or repeatedly attempt closing after air door, still judge that air door do not close tight, can detect is that air door is out of joint, thereby detect air door and whether have fault, and report to the police so that maintenance rapidly, avoid affecting the normal use of refrigerator, improve the operational reliability of refrigerator.
The fault detection method of refrigerator according to the above embodiment of the present invention can also have following additional technical characterictic:
In some instances, describedly according to the first temperature and the second temperature, judge whether described air door is closed tight, further comprise: if the difference that described the first temperature deducts described the second temperature is more than or equal to predetermined temperature difference, judge that described air door do not close tight, wherein, described predetermined temperature difference is positioned between [0 degree Celsius, 1 degree Celsius].
In some instances, after described step D, also comprise: using described the second temperature as described the first temperature, and after the schedule time described in time delay, detect the 3rd temperature of described reefer; According to described the first temperature and described the 3rd temperature, judge whether described air door exists fault.
In some instances, also comprise: F: when described air door is opened, detect the 4th temperature of reefer; G: after the schedule time, detect the 5th temperature of described reefer described in time delay; H: judge according to described the 4th temperature and the 5th temperature whether described air door is opened; I: if judge that described air door do not open, control described air door and open; J: repeat described step G to step I until controlling after number of times that described air door opens reaches pre-determined number, if judge that described air door still do not open, judge that described air door exists fault and reports to the police.
In some instances, after described step I, also comprise: using described the 5th temperature as described the 4th temperature, and after the schedule time described in time delay, detect the 6th temperature of described reefer; According to described the 4th temperature and described the 6th temperature, judge whether described air door exists fault.
The embodiment of second aspect present invention discloses a kind of fault detection system of refrigerator, described refrigerator comprises: refrigerating chamber, reefer, air channel and air door, described air channel is located between described refrigerating chamber and reefer, described air door is used for opening and closing described air channel, described system comprises: detection module, for when described air door is closed, detects the first temperature of reefer, and after delay predetermined time, detect the second temperature of described reefer; Judge module, for judging according to described the first temperature and the second temperature whether described air door is closed tight; Control module, for when described judge module judges that described air door is not closed tight, controls described air door and closes, and control number of times that described air door closes reach pre-determined number after and described air door is not still closed tight, send damper faults signal.
According to the fault detection system of the refrigerator of the embodiment of the present invention, the temperature variations that can close rear reefer according to air door (for example, if air door is normally closed and is closed tight, As time goes on, temperature in reefer will be more and more higher within the specific limits), judge cold draining is closed or existed to air door whether tight, and when judgement air door is not closed tight, can control that air door is closed once again or repeatedly, if once or repeatedly attempt closing after air door, still judge that air door do not close tight, can detect is that air door is out of joint, thereby detect air door and whether have fault, and report to the police so that maintenance rapidly, avoid affecting the normal use of refrigerator, improve the operational reliability of refrigerator.
The fault detection system of refrigerator according to the above embodiment of the present invention can also have following additional technical characterictic:
In some instances, described judge module is for when described the first temperature of the judgement difference that deducts described the second temperature is more than or equal to predetermined temperature difference, judges that described air door do not close tight, and wherein, described predetermined temperature difference is positioned between [0 degree Celsius, 1 degree Celsius].
In some instances, in described control module, control after described air door closes, described control module also for: using described the second temperature as described the first temperature, and after the schedule time described in time delay, the 3rd temperature of the described reefer detecting according to described the first temperature and described detection module judges whether described air door exists fault.
In some instances, described detection module, also for when described air door is opened, detects the 4th temperature of reefer, and after the schedule time described in time delay, detects the 5th temperature of described reefer; Described judge module is also for judging according to described the 4th temperature and the 5th temperature whether described air door is opened; Described control module is also for when described judge module judges that described air door is not opened, controlling described air door opens, until controlling after number of times that described air door opens reaches pre-determined number, if described judge module judges described air door, still do not open, sentence and generate damper faults signal.
In some instances, in described control module, control after described air door opens, described control module also for: using described the 5th temperature as described the 4th temperature, and after the schedule time described in time delay, the 6th temperature of the reefer detecting according to described the 4th temperature and described detection module judges whether described air door exists fault.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is the process flow diagram of the fault detection method of refrigerator according to an embodiment of the invention;
Fig. 2 is the process flow diagram of the fault detection method of refrigerator in accordance with another embodiment of the present invention; And
Fig. 3 is the structural drawing of the fault detection system of refrigerator according to an embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
With reference to description and accompanying drawing below, these and other aspects of embodiments of the invention will be known.These describe and accompanying drawing in, specifically disclose some specific implementations in embodiments of the invention, represent to implement some modes of the principle of embodiments of the invention, still should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise spirit and all changes within the scope of intension, modification and the equivalent that falls into additional claims.
Below in conjunction with accompanying drawing, describe according to the fault detection method of the refrigerator of the embodiment of the present invention and system.
The refrigerator of the embodiment of the present invention can be wind cooling refrigerator, and refrigerator at least comprises: refrigerating chamber, reefer, air channel and air door, and air channel is located between refrigerating chamber and reefer, and air door is used for opening and closing air channel.Cold air in refrigerating chamber enters reefer by air channel, is reefer refrigeration.
Fig. 1 is the process flow diagram of the fault detection method of refrigerator according to an embodiment of the invention.As shown in Figure 1, the fault detection method of refrigerator, comprises the steps: according to an embodiment of the invention
Step S101: when air door is closed, detect the first temperature T 1 of reefer.
Step S102: after delay predetermined time, detect the second temperature T of reefer.
Step S103: judge according to the first temperature T 1 and the second temperature T whether air door is closed tight.Specifically, if the difference that described the first temperature deducts described the second temperature is more than or equal to predetermined temperature difference, judge that described air door do not close tight, wherein, described predetermined temperature difference is positioned between [0 degree Celsius, 1 degree Celsius].
Step S104: if judgement air door is not closed tight, control air door and close.
Step S105: repeated execution of steps S102 is to step S104 until controlling after number of times that air door closes reaches pre-determined number, if judgement air door is not still closed tight, judge that air door exists fault and reports to the police.
In above-mentioned example, the duration of schedule time t for starting from air door close moment, value can be 0-20 minute, T is the temperature value that after schedule time t, reefer sensor records (i.e. the second temperature), T1 is the temperature value (i.e. the first temperature) that reefer air door is closed rear reefer sensor and recorded, the value of predetermined temperature difference T2 can be got the temperature between [0 degree Celsius, 1 degree Celsius].The value of pre-determined number n can be integer between [1-50].
As an example particularly, shown in Fig. 2, after closing with air door, t=5 minute, T2=0.3 degree Celsius, n=2 is example:
After air door is closed, temperature of refrigerating chamber being detected is T1, temperature of refrigerating chamber after 5 minutes, being detected is T, if now T>T1-0.3, exits detection, if T<=T1-0.3, send main air intake reset signal (controlling air door closes), judgement again after 5 minutes, if T>T1-0.3, exit detection, if T<=T1-0.3, send main air intake reset signal, judgement again after 5 minutes, if T>T1-0.3, exit detection, if T<=T1-0.3, judge that air door exists fault and reports to the police, can be by the display screen reality damper faults of refrigerator, if there is hummer in refrigerator, also can report to the police by hummer.
According to the fault detection method of the refrigerator of the embodiment of the present invention, the temperature variations that can close rear reefer according to air door (for example, if air door is normally closed and is closed tight, As time goes on, temperature in reefer will be more and more higher within the specific limits), judge cold draining is closed or existed to air door whether tight, and when judgement air door is not closed tight, can control that air door is closed once again or repeatedly, if once or repeatedly attempt closing after air door, still judge that air door do not close tight, can detect is that air door is out of joint, thereby detect air door and whether have fault, and report to the police so that maintenance rapidly, avoid affecting the normal use of refrigerator, improve the operational reliability of refrigerator.
In addition, the method also comprises: if the Current Temperatures in the reefer detecting is less than or equal to refrigerating chamber stopping point temperature, illustrate that air door do not close or exist cold draining tight, now give again air door shutdown signal, allow air door close, whether the Current Temperatures again detecting after 5 minutes in reefer is less than or equal to refrigerating chamber stopping temperature, if be less than or equal to refrigerating chamber stopping point temperature explanation air door, still do not close or exist cold draining tight, now give again air door shutdown signal, whether the Current Temperatures again detecting after 5 minutes in reefer is less than or equal to refrigerating chamber stopping temperature, if be less than or equal to refrigerating chamber stopping point temperature, think that air door may damage and cannot close, detect air door and have fault.
Further, the method for the embodiment of the present invention also provides another kind of detection air door whether to have the method for fault, particularly, after step S104, can detect as follows air door and whether have fault.For example comprise:
1, using the second temperature T as the first temperature T 1, and after delay predetermined time t, detect the 3rd temperature of reefer.
2, according to the first temperature T 1 and the 3rd temperature, judge whether air door exists fault.
Above detection mode is to detect air door after closing, and judges whether air door is closed tight.The method of the embodiment of the present invention also can detect air door after opening, and judges whether air door is normally opened, and specifically, the method is further comprising the steps of:
S1: when air door is opened, detect the 4th temperature of reefer.
S2: after delay predetermined time, detect the 5th temperature of reefer.
S3: judge according to the 4th temperature and the 5th temperature whether air door is opened.
S4: if judgement air door is not opened, control air door and open.
S5: repeated execution of steps S2 is to step S4 until controlling after number of times that air door opens reaches pre-determined number n, if judgement air door is not still opened, judge that air door exists fault and reports to the police.
Thus, whether the method not only can detect air door and can close tight, also can detect air door and whether have the fault that cannot open, thereby improve further the reliability of refrigerator, guarantees the normal operation of refrigerator.
Be understandable that, the method for the embodiment of the present invention detects air door and whether normally opens that to detect the principle whether air door close tight after closing with air door similar after air door is opened, and in order to reduce redundancy, does not repeat.
Certainly, after above-mentioned steps S4, the method for the embodiment of the present invention also can detect as follows air door and whether have the fault that cannot normally open.For example:
1, using the 5th temperature as the 4th temperature, and after delay predetermined time t, detect the 6th temperature of reefer.
2, according to the 4th temperature and the 6th temperature, judge whether air door exists fault.
According to the method for the embodiment of the present invention, can effectively detect air door and whether have fault, and can report to the police after air door exists fault, thereby report to the police so that maintenance rapidly avoids affecting the normal use of refrigerator, improve the operational reliability of refrigerator.
Further embodiment of the present invention provides a kind of fault detection system 300 of refrigerator, comprising: detection module 310, judge module 320 and control module 330.
Wherein, detection module 310, for when air door is closed, detects the first temperature of reefer, and after delay predetermined time, detects the second temperature of reefer.Judge module 320 is for judging according to the first temperature and the second temperature whether air door is closed tight.Control module 330 when judging that at judge module air door is not closed tight, is controlled air door and is closed, and control number of times that air door closes reach pre-determined number after and air door is not still closed tight, send damper faults signal.
In one embodiment of the invention, when judge module 330 is more than or equal to predetermined temperature difference for deduct the difference of the second temperature in judgement the first temperature, judgement air door is not closed tight, and wherein, predetermined temperature difference is positioned between [0 degree Celsius, 1 degree Celsius].
After control module 330 control air doors are closed, control module 330 also for: using described the second temperature as described the first temperature, and after the schedule time described in time delay, the 3rd temperature of the described reefer detecting according to described the first temperature and described detection module judges whether described air door exists fault.
In addition, detection module 310, also for when air door is opened, detects the 4th temperature of reefer, and after the schedule time described in time delay, detects the 5th temperature of described reefer.Judge module 320 is also for judging according to described the 4th temperature and the 5th temperature whether described air door is opened.Control module 330 is also for when described judge module judges that described air door is not opened, controlling described air door opens, until controlling after number of times that described air door opens reaches pre-determined number, still do not open if described judge module judges described air door, sentence and generate damper faults signal.
Further, after the described air door of control module 330 control is opened, control module 330 also for: using described the 5th temperature as described the 4th temperature, and after the schedule time described in time delay, the 6th temperature of the reefer detecting according to described the 4th temperature and described detection module judges whether described air door exists fault.
According to the fault detection system of the refrigerator of the embodiment of the present invention, the temperature variations that can close rear reefer according to air door (for example, if air door is normally closed and is closed tight, As time goes on, temperature in reefer will be more and more higher within the specific limits), judge cold draining is closed or existed to air door whether tight, and when judgement air door is not closed tight, can control that air door is closed once again or repeatedly, if once or repeatedly attempt closing after air door, still judge that air door do not close tight, can detect is that air door is out of joint, thereby detect air door and whether have fault, and report to the police so that maintenance rapidly, avoid affecting the normal use of refrigerator, improve the operational reliability of refrigerator.
Be understandable that, the specific implementation of the system of the embodiment of the present invention and method part are similar, in order to reduce redundancy, do not repeat.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claim and be equal to and limit.
Claims (10)
1. the fault detection method of a refrigerator, it is characterized in that, described refrigerator comprises: refrigerating chamber, reefer, air channel and air door, and described air channel is located between described refrigerating chamber and reefer, described air door is used for opening and closing described air channel, said method comprising the steps of:
A: when described air door is closed, detect the first temperature of reefer;
B: after delay predetermined time, detect the second temperature of described reefer;
C: judge according to described the first temperature and the second temperature whether described air door is closed tight;
D: if judge that described air door do not close tight, control described air door and close;
E: repeat described step B to step D until controlling after number of times that described air door closes reaches pre-determined number, if judge that described air door still do not close tight, judge that described air door exists fault and reports to the police.
2. method according to claim 1, is characterized in that, describedly according to the first temperature and the second temperature, judges that whether described air door is closed tight, further comprises:
If the difference that described the first temperature deducts described the second temperature is more than or equal to predetermined temperature difference, judge that described air door do not close tight, wherein, described predetermined temperature difference is positioned between [0 degree Celsius, 1 degree Celsius].
3. method according to claim 1, is characterized in that, after described step D, also comprises:
Using described the second temperature as described the first temperature, and after the schedule time described in time delay, detect the 3rd temperature of described reefer;
According to described the first temperature and described the 3rd temperature, judge whether described air door exists fault.
4. method according to claim 1, is characterized in that, also comprises:
F: when described air door is opened, detect the 4th temperature of reefer;
G: after the schedule time, detect the 5th temperature of described reefer described in time delay;
H: judge according to described the 4th temperature and the 5th temperature whether described air door is opened;
I: if judge that described air door do not open, control described air door and open;
J: repeat described step G to step I until controlling after number of times that described air door opens reaches pre-determined number, if judge that described air door still do not open, judge that described air door exists fault and reports to the police.
5. method according to claim 4, is characterized in that, after described step I, also comprises:
Using described the 5th temperature as described the 4th temperature, and after the schedule time described in time delay, detect the 6th temperature of described reefer;
According to described the 4th temperature and described the 6th temperature, judge whether described air door exists fault.
6. a fault detection system for refrigerator, is characterized in that, described refrigerator comprises: refrigerating chamber, reefer, air channel and air door, and described air channel is located between described refrigerating chamber and reefer, and described air door is used for opening and closing described air channel, and described system comprises:
Detection module, for when described air door is closed, detects the first temperature of reefer, and after delay predetermined time, detects the second temperature of described reefer;
Judge module, for judging according to described the first temperature and the second temperature whether described air door is closed tight;
Control module, for when described judge module judges that described air door is not closed tight, controls described air door and closes, and control number of times that described air door closes reach pre-determined number after and described air door is not still closed tight, send damper faults signal.
7. system according to claim 6, is characterized in that, when described judge module is more than or equal to predetermined temperature difference for the difference that deducts described the second temperature in described the first temperature of judgement, judge that described air door do not close tight, wherein, described predetermined temperature difference is positioned between [0 degree Celsius, 1 degree Celsius].
8. system according to claim 6, is characterized in that, in described control module, control after described air door closes, described control module also for:
Using described the second temperature as described the first temperature, and after the schedule time described in time delay, the 3rd temperature of the described reefer detecting according to described the first temperature and described detection module judges whether described air door exists fault.
9. system according to claim 6, is characterized in that, described detection module, also for when described air door is opened, detects the 4th temperature of reefer, and after the schedule time described in time delay, detects the 5th temperature of described reefer;
Described judge module is also for judging according to described the 4th temperature and the 5th temperature whether described air door is opened;
Described control module is also for when described judge module judges that described air door is not opened, controlling described air door opens, until controlling after number of times that described air door opens reaches pre-determined number, if described judge module judges described air door, still do not open, sentence and generate damper faults signal.
10. system according to claim 9, it is characterized in that, in described control module, control after described air door opens, described control module also for: using described the 5th temperature as described the 4th temperature, and after the schedule time described in time delay, the 6th temperature of the reefer detecting according to described the 4th temperature and described detection module judges whether described air door exists fault.
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| CN105318643A (en) * | 2015-03-10 | 2016-02-10 | Tcl智能科技（合肥）有限公司 | Refrigerator failure detection method and device |
| CN108278834A (en) * | 2018-03-29 | 2018-07-13 | 南京创维电器研究院有限公司 | A kind of wind cooling refrigerator air door neglected loading detection alarm method |
| CN105509409B (en) * | 2015-12-22 | 2019-01-18 | 青岛海尔股份有限公司 | The control method and device of electronic damper |
| CN109421541A (en) * | 2017-08-21 | 2019-03-05 | 上海蔚来汽车有限公司 | Electric car powering method based on wake source |
| CN112503846A (en) * | 2020-09-28 | 2021-03-16 | 深圳数联天下智能科技有限公司 | Method for detecting state of refrigerator air door motor, refrigerator and storage medium |
| CN112665297A (en) * | 2020-12-07 | 2021-04-16 | 珠海格力电器股份有限公司 | Control method and device for refrigerator air door, controller and refrigerator |
| CN112665298A (en) * | 2020-12-07 | 2021-04-16 | 珠海格力电器股份有限公司 | Refrigerator air door fault detection method and device, controller and refrigerator |
| CN113606844A (en) * | 2021-08-12 | 2021-11-05 | 长虹美菱股份有限公司 | Refrigerator electric air door with switch state detection function |
| CN113791651A (en) * | 2021-08-04 | 2021-12-14 | 南阳市京德啤酒技术开发有限公司 | Temperature control system for preventing fermentation tank from cooling and freezing |
| CN114353420A (en) * | 2021-12-10 | 2022-04-15 | 珠海格力电器股份有限公司 | Control method, control device, electronic equipment and storage medium |
| CN114576923A (en) * | 2022-04-01 | 2022-06-03 | 长虹美菱股份有限公司 | Refrigerator fault detection operation control system and control method |
| CN115479430A (en) * | 2022-09-22 | 2022-12-16 | 珠海格力电器股份有限公司 | Method and device for determining cold leakage reason and refrigerator |
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