CN111599143A - Volume reminding method, volume reminding device and range hood - Google Patents
Volume reminding method, volume reminding device and range hood Download PDFInfo
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- CN111599143A CN111599143A CN202010421749.9A CN202010421749A CN111599143A CN 111599143 A CN111599143 A CN 111599143A CN 202010421749 A CN202010421749 A CN 202010421749A CN 111599143 A CN111599143 A CN 111599143A
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- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000001514 detection method Methods 0.000 claims description 34
- 230000013011 mating Effects 0.000 claims description 8
- 230000007774 longterm Effects 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- 230000000694 effects Effects 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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Abstract
The invention provides a capacity reminding method, a capacity reminding device and a range hood, wherein the capacity reminding method comprises the following steps: judging whether the accumulated use time of the container reaches the preset working time or not; if the accumulated use time of the container reaches the preset working time, an alarm signal is sent out; detecting whether the container is cleaned or not, if so, recording the accumulated use time of the container again, and judging whether the accumulated use time of the container reaches the preset working time again; if the container is not cleaned, updating the preset working duration, and continuously judging whether the accumulated use duration of the container reaches the updated preset working duration or not; and the updated preset working time is longer than the original preset working time. The capacity reminding method solves the problem that the reliability of the capacity reminding method in the prior art in long-term use is poor.
Description
Technical Field
The invention relates to the field of oil cup capacity reminding of a range hood, in particular to a capacity reminding method, a capacity reminding device and a range hood.
Background
The embedded setting of oil cup is usually in order beautifully with current smoke ventilator, and whether the greasy dirt is full in the unable audio-visual judgement oil cup of user, need adopt auxiliary means to judge whether need take out the oil cup and wash it.
At present, the commonly used method for detecting the liquid level of the oil cup comprises the following steps: the liquid level sensor is used for detecting, the infrared reflection principle is used for detecting, the weighing detection is used for detecting and the like, the sensors need to be added in the methods, the structure is complex, the cost is increased, more importantly, the sensors are easily affected by oil stains, and the long-term working reliability is poor.
Therefore, there is a lack in the prior art of a simple and effective technique for alerting the oil cup that it is about to be full.
Disclosure of Invention
The invention mainly aims to provide a capacity reminding method, a capacity reminding device and a range hood, and aims to solve the problem that the capacity reminding method in the prior art is poor in long-term use reliability.
In order to achieve the above object, according to an aspect of the present invention, there is provided a capacity reminding method including: judging whether the accumulated use time of the container reaches the preset working time or not; if the accumulated use time of the container reaches the preset working time, an alarm signal is sent out; detecting whether the container is cleaned or not, if so, recording the accumulated use time of the container again, and judging whether the accumulated use time of the container reaches the preset working time again; if the container is not cleaned, updating the preset working duration, and continuously judging whether the accumulated use duration of the container reaches the updated preset working duration or not; and the updated preset working time is longer than the original preset working time.
Further, the method for updating the preset working time length comprises the following steps: increasing the preset increasing time length on the basis of the original preset working time length to form an updated preset working time length; wherein the preset increasing time length is less than the original preset working time length.
Further, the predetermined increase period is Tset，Tset＝T×(x/y)n(ii) a Wherein T is the initial preset working time, n is the number of times the preset working time is updated, n is a natural number greater than 0, x and y are preset constants, and x is less than y.
Further, the method for detecting whether the container is cleaned comprises the following steps: judging whether the time length for taking out the container reaches the target time length or not, and if the time length for taking out the container reaches the target time length, judging that the container is cleaned; and if the time length for taking out the container does not reach the target time length, judging that the container is not cleaned.
Furthermore, the capacity reminding method is used for reminding the capacity of an oil cup in the range hood, the container is the oil cup in the range hood, and the oil cup is used for containing oil recovered by the range hood.
According to another aspect of the present invention, there is provided a storage medium storing a program which, when executed, implements the capacity reminder method described above.
According to another aspect of the present invention, there is provided a capacity reminder system, comprising a memory and a processor coupled to the memory, the memory and the processor being communicatively connected via a bus system; the memory stores programs, the processor is used for executing the programs, and the programs realize the capacity reminding method when being executed by the processor.
According to another aspect of the present invention, there is provided a capacity reminder device, including: the timing module is used for recording the accumulated use time of the container; the logic judgment module is connected with the timing module and used for receiving the accumulated use time and judging whether the accumulated use time reaches the preset working time; the alarm module is connected with the logic judgment module and is used for sending an alarm signal when the accumulated use time of the container reaches the preset working time length; the detection module is used for being matched with the container to detect whether the container is cleaned or not; the operation module is connected with the detection module, the timing module and the logic judgment module and is used for resetting the accumulated use duration when the detection module detects that the container is cleaned; or updating the predetermined operating time when the detection module detects that a majority of the containers are not cleaned.
Further, the container is detachably disposed with respect to the detection module to detect whether the container is taken out by the detection module; the detection module is connected with the timing module, or the detection module comprises a timing unit so as to record the time length for taking out the container through the timing module or the timing unit; the detection module is connected with the logic judgment module, or the detection module comprises a judgment unit, so that when the time length for taking out the container reaches the target time length, the logic judgment module or the judgment unit judges that the container is cleaned; or when the time length of taking out the container does not reach the target time length, the logic judgment module or the judgment unit judges that the container is not cleaned.
Furthermore, a first matching part is arranged on the container, and the detection module is provided with a movable second matching part; the container is movably arranged along a preset direction to have a working position and a taking-out position; when the container is in the working position, the first matching part is matched with the second matching part; when the container is in the removal position, the first mating portion is separated from the second mating portion.
According to another aspect of the invention, a range hood is provided, which comprises the capacity reminding device.
The capacity reminding method applying the technical scheme of the invention comprises the following steps: judging whether the accumulated use time of the container reaches the preset working time or not; if the accumulated use time of the container reaches the preset working time, an alarm signal is sent out; detecting whether the container is cleaned or not, if so, recording the accumulated use time of the container again, and judging whether the accumulated use time of the container reaches the preset working time again; if the container is not cleaned, updating the preset working duration, and continuously judging whether the accumulated use duration of the container reaches the updated preset working duration or not; and the updated preset working time is longer than the original preset working time. Therefore, when the accumulated use time of the container is detected to reach the preset working time, an alarm signal is sent out to remind a user of cleaning the container; if the container is cleaned, clearing the accumulated working time of the container; if the container is not cleaned, the residual capacity of the container is smaller, at the moment, the preset working time is updated and increased, the alarm signal can be sent again when the accumulated working time reaches the updated preset working time, the problem of medium overflow after the container is full can be effectively solved, the effective reminding of the container capacity can be realized without a sensor, the alarm reliability cannot be influenced due to environmental interference, and the problem of poor reliability of long-term use of the capacity reminding method in the prior art is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a first embodiment of a capacity reminding method according to the present invention;
FIG. 2 is a diagram illustrating a second embodiment of a capacity reminder method according to the present invention;
figure 3 shows an enlarged structural schematic of a partial region of one embodiment of a range hood according to the present invention;
fig. 4 shows an enlarged structural view of a partial region of another embodiment of a hood according to the present invention.
Wherein the figures include the following reference numerals:
100. an oil cup; 200. a support; 101. a boss portion; 102. a recessed portion; 300. and (4) switching.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 2, the present invention provides a capacity reminding method, including: judging whether the accumulated use time of the container reaches the preset working time or not; if the accumulated use time of the container reaches the preset working time, an alarm signal is sent out; detecting whether the container is cleaned or not, if so, recording the accumulated use time of the container again, and judging whether the accumulated use time of the container reaches the preset working time again; if the container is not cleaned, updating the preset working duration, and continuously judging whether the accumulated use duration of the container reaches the updated preset working duration or not; and the updated preset working time is longer than the original preset working time.
The capacity reminding method comprises the following steps: judging whether the accumulated use time of the container reaches the preset working time or not; if the accumulated use time of the container reaches the preset working time, an alarm signal is sent out; detecting whether the container is cleaned or not, if so, recording the accumulated use time of the container again, and judging whether the accumulated use time of the container reaches the preset working time again; if the container is not cleaned, updating the preset working duration, and continuously judging whether the accumulated use duration of the container reaches the updated preset working duration or not; and the updated preset working time is longer than the original preset working time. Therefore, when the accumulated use time of the container is detected to reach the preset working time, an alarm signal is sent out to remind a user of cleaning the container; if the container is cleaned, clearing the accumulated working time of the container; if the container is not cleaned, the residual capacity of the container is smaller, at the moment, the preset working time is updated and increased, the alarm signal can be sent again when the accumulated working time reaches the updated preset working time, the problem of medium overflow after the container is full can be effectively solved, the effective reminding of the container capacity can be realized without a sensor, the alarm reliability cannot be influenced due to environmental interference, and the problem of poor reliability of long-term use of the capacity reminding method in the prior art is solved.
It should be noted that the updated preset operating time length and the original preset operating time length refer to two adjacent preset operating time lengths. That is, the original predetermined operating time period refers to the predetermined operating time period before the updated predetermined operating time period, rather than the initial predetermined operating time period.
Specifically, the method for updating the preset working time length comprises the following steps: increasing the preset increasing time length on the basis of the original preset working time length to form an updated preset working time length; wherein the preset increasing time length is less than the original preset working time length. That is, the updated predetermined operating time is longer than the original predetermined operating time, and twice the original predetermined operating time is longer than the updated predetermined operating time. Thus, when the container is not cleaned all the time, the alarm interval is continuously reduced along with the increase of the accumulated use time of the container, so that the alarm is more effectively carried out when the capacity of the container is insufficient, and the risk of medium overflow is reduced.
In the present embodiment, the predetermined increase period is Tset，Tset＝T×(x/y)n(ii) a Wherein T is the initial preset working time, n is the number of times the preset working time is updated, n is a natural number greater than 0, x and y are preset constants, and x is less than y. By adopting this manner, the predetermined increase period T can be controlledsetThe volume condition in the container can be well adapted all the time, the alarm can be avoided from being too frequent, and the problem of medium overflow after the container is full can be well avoided.
In order to ensure the reliability of the capacity reminding method and avoid the decrease of the stability of the method due to the use of devices such as sensors, in this embodiment, the method for detecting whether the container is cleaned includes: judging whether the time length for taking out the container reaches the target time length or not, and if the time length for taking out the container reaches the target time length, judging that the container is cleaned; and if the time length for taking out the container does not reach the target time length, judging that the container is not cleaned. In this way, when the time period during which the container is taken out reaches the target time length, it indicates that the user has taken out the container for a sufficient time, and therefore it can be determined that the container has been emptied, and when the time period during which the container is taken out does not reach the target time length, the user does not have sufficient time to empty the container, and at this time it can be determined that the container is not emptied. Therefore, whether the container is empty or not can be accurately detected without using equipment such as a sensor, the hardware structure required by the capacity reminding method is simplified, and the reliability of the use of the capacity reminding method is favorably ensured. In specific implementation, the target time period is not less than 10 seconds, and preferably, the target time period is not less than 15 seconds.
In this embodiment, the capacity reminding method is used for reminding the capacity of an oil cup in a range hood, the container is an oil cup inside the range hood, and the oil cup is used for containing oil recovered by the range hood.
In addition, the present invention provides a storage medium in which a program is stored, and the program implements the above-described capacity alert method when executed.
On the basis, the invention also provides a capacity reminding system, which comprises a memory and a processor coupled with the memory, wherein the memory is in communication connection with the processor through a bus system; the memory stores programs, the processor is used for executing the programs, and the programs realize the capacity reminding method when being executed by the processor.
Correspondingly, the invention provides a capacity reminding device, which comprises: the timing module is used for recording the accumulated use time of the container; the logic judgment module is connected with the timing module and used for receiving the accumulated use time and judging whether the accumulated use time reaches the preset working time; the alarm module is connected with the logic judgment module and is used for sending an alarm signal when the accumulated use time of the container reaches the preset working time length; the detection module is used for being matched with the container to detect whether the container is cleaned or not; the operation module is connected with the detection module, the timing module and the logic judgment module and is used for resetting the accumulated use duration when the detection module detects that the container is cleaned; or updating the predetermined operating time when the detection module detects that a majority of the containers are not cleaned.
In specific implementation, the container is detachably arranged relative to the detection module so as to detect whether the container is taken out or not through the detection module; the detection module is connected with the timing module, or the detection module comprises a timing unit so as to record the time length for taking out the container through the timing module or the timing unit; the detection module is connected with the logic judgment module, or the detection module comprises a judgment unit, so that when the time length for taking out the container reaches the target time length, the logic judgment module or the judgment unit judges that the container is cleaned; or when the time length of taking out the container does not reach the target time length, the logic judgment module or the judgment unit judges that the container is not cleaned.
Specifically, as shown in fig. 3 and 4, a first matching portion is provided on the container, and the detection module has a movable second matching portion; the container is movably arranged along a preset direction to have a working position and a taking-out position; when the container is in the working position, the first matching part is matched with the second matching part; when the container is in the removal position, the first mating portion is separated from the second mating portion.
In this embodiment, the oil cup 100 is movably disposed on the bracket 200, the oil cup 100 is provided with a first engaging portion, in specific implementation, the first engaging portion may be a protruding portion 101 or a recessed portion 102, and the detecting module has a second engaging portion, in this embodiment, the second engaging portion is a switch 300.
According to another aspect of the invention, a range hood is provided, which comprises the capacity reminding device.
The capacity alert method of the present invention will be described below with reference to a more specific embodiment:
in this embodiment, the capacity reminding method includes:
step S102: recording the cumulative duration of use T of the containersum(ii) a Step S104: will accumulate the usage time period TsumWith a predetermined operating time period TalarmComparing, if the using time length T is accumulatedsumLess than a predetermined operating time period TalarmIf yes, executing step S102; if the accumulated time duration T is usedsumGreater than or equal to a predetermined operating time period TalarmSending out an alarm signal; step S106: when the accumulated time length of use TsumGreater than or equal to a predetermined operating time period TalarmDetecting whether the container is cleaned or not, and controlling the accumulated use time T if the container is cleanedsumClearing and then executing the step S102; if the container is not cleaned, controlling the preset working time TalarmIncreasing the predetermined increase period TsetThen, step S102 is performed. In this way, by recording the cumulative duration of use T of the containersumWhen the accumulated time of use TsumTo a predetermined working time TalarmThe user is alerted that the container is about to be full. At this time, if the user observes the container and finds that the container is not full and is not cleaned, the current preset working time T isalarmIs increased by a predetermined increase time period TsetSo that the cumulative duration of use T of the containersumTo a new predetermined operating time period TalarmAnd when the container is full, the reminding signal is sent out more reliably, and the risk of medium overflow after the container is full is reduced. By adopting the capacity reminding method, devices such as a liquid level sensor, an infrared emitter, a weighing sensor and the like do not need to be arranged, the influence of oil stain, dust, water vapor and the like in the environment is small, the long-term working reliability is good, and the capacity reminding method can effectively solve the problems that the capacity reminding method is not influenced by oil stain, dust, water vapor and the like in theThe problem of the capacity reminding method that the reliability is poor in long-term operation is solved.
With a predetermined operating time period TalarmIncreasing the number of changes by a predetermined increasing duration TsetAnd gradually reduced. In particular, when the predetermined operating time period TalarmAt the time of nth increase, the predetermined increase time T is increasedset＝T×(x/y)n(ii) a Wherein T is an initial preset working time length TalarmN is a natural number greater than 0, x and y are preset constants, and x is less than y.
Specifically, the alarm signal may be automatically stopped after being triggered, or may be continuously sent out after being triggered, in this embodiment, the alarm signal may be continuously sent out after being triggered, in order to stop sending out the alarm signal when the condition is met:
in one implementation, step S105 is included between step S104 and step S106: after the alarm signal is sent out, detecting whether an alarm canceling instruction is received or not, and if the alarm canceling instruction is received, stopping sending the alarm signal; otherwise, continuously sending out an alarm signal.
In another implementation mode, after the alarm signal is sent out, whether the container is taken out and put back is detected, and if the container is taken out and put back, the alarm signal is stopped being sent out; otherwise, continuously sending out an alarm signal.
The method for detecting whether the container is cleaned or not comprises the following steps: step S1062: recording the time period T for which the container is removedout(ii) a Step S1064: length of time T for which container is removedoutAnd a target duration TgoalBy comparison, the time T if the container is taken outoutTime to target TgoalThen judging that the container is cleaned; length of time T if container is taken outoutLess than target duration TgoalThen a determination is made that the container is not cleaned.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the capacity reminding method comprises the following steps: judging whether the accumulated use time of the container reaches the preset working time or not; if the accumulated use time of the container reaches the preset working time, an alarm signal is sent out; detecting whether the container is cleaned or not, if so, recording the accumulated use time of the container again, and judging whether the accumulated use time of the container reaches the preset working time again; if the container is not cleaned, updating the preset working duration, and continuously judging whether the accumulated use duration of the container reaches the updated preset working duration or not; and the updated preset working time is longer than the original preset working time. Therefore, when the accumulated use time of the container is detected to reach the preset working time, an alarm signal is sent out to remind a user of cleaning the container; if the container is cleaned, clearing the accumulated working time of the container; if the container is not cleaned, the residual capacity of the container is smaller, at the moment, the preset working time is updated and increased, the alarm signal can be sent again when the accumulated working time reaches the updated preset working time, the problem of medium overflow after the container is full can be effectively solved, the effective reminding of the container capacity can be realized without a sensor, the alarm reliability cannot be influenced due to environmental interference, and the problem of poor reliability of long-term use of the capacity reminding method in the prior art is solved.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A capacity reminding method is characterized by comprising the following steps:
judging whether the accumulated use time of the container reaches the preset working time or not;
if the accumulated use time of the container reaches the preset working time, sending an alarm signal;
detecting whether the container is cleaned or not, if so, recording the accumulated use time of the container again, and judging whether the accumulated use time of the container reaches the preset working time again;
if the container is not cleaned, updating the preset working time length, and continuously judging whether the accumulated use time length of the container reaches the updated preset working time length; and updating the preset working time according to the preset working time, wherein the updated preset working time is longer than the original preset working time.
2. The capacity reminder method according to claim 1, wherein the method of updating the predetermined operation time period comprises: increasing a preset increasing time length on the basis of the original preset working time length to form an updated preset working time length; and the preset increasing time length is smaller than the original preset working time length.
3. The capacity alert method as claimed in claim 2, wherein the predetermined increase period is Tset，Tset＝T×(x/y)n；
Wherein T is the initial preset working time, n is the number of times the preset working time is updated, n is a natural number greater than 0, x and y are preset constants, and x is less than y.
4. The volume reminder method of claim 1, wherein the method of detecting whether the container is cleaned comprises:
judging whether the time length for taking out the container reaches a target time length or not, and if the time length for taking out the container reaches the target time length, judging that the container is cleaned;
and if the taken-out time length of the container does not reach the target time length, judging that the container is not cleaned.
5. The capacity reminding method according to any one of claims 1 to 4, wherein the capacity reminding method is used for reminding the capacity of an oil cup in a range hood, the container is an oil cup inside the range hood, and the oil cup is used for containing oil recovered by the range hood.
6. A storage medium, characterized in that a program is stored in the storage medium, and when the program is executed, the program realizes the capacity warning method according to any one of claims 1 to 5.
7. A capacity reminder system, comprising a memory and a processor coupled to the memory, the memory and the processor being communicatively coupled via a bus system;
the memory stores a program, and the processor executes the program, and the program realizes the capacity reminding method according to any one of claims 1 to 5 when executed by the processor.
8. A capacity reminder device, comprising:
the timing module is used for recording the accumulated use time of the container;
the logic judgment module is connected with the timing module and used for receiving the accumulated use time length and judging whether the accumulated use time length reaches the preset working time length;
the alarm module is connected with the logic judgment module and used for sending an alarm signal when the logic judgment module judges that the accumulated use time of the container reaches the preset working time;
a detection module for cooperating with the container to detect whether the container is cleaned;
the operation module is connected with the detection module, the timing module and the logic judgment module and is used for resetting the accumulated use duration when the detection module detects that the container is cleaned; or when the detection module detects that most containers are not cleaned, updating the preset working time.
9. The volume reminder device according to claim 8, wherein the container is detachably disposed with respect to the detection module to detect whether the container is taken out by the detection module;
the detection module is connected with the timing module, or the detection module comprises a timing unit, so that the time length for taking out the container is recorded through the timing module or the timing unit;
the detection module is connected with the logic judgment module, or the detection module comprises a judgment unit, so that when the time length for taking out the container reaches the target time length, the logic judgment module or the judgment unit judges that the container is cleaned; or when the taken-out time length of the container does not reach the target time length, the logic judgment module or the judgment unit judges that the container is not cleaned.
10. The volume reminder device according to claim 8, wherein the container has a first engaging portion, and the detection module has a second engaging portion that is movable; the container is movably arranged along a preset direction to have a working position and a taking-out position; the first mating portion mates with the second mating portion when the container is in the operating position; the first mating portion is separated from the second mating portion when the container is in the removal position.
11. A range hood, characterized in that it comprises a capacity reminder device according to any one of claims 8 to 10.
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| CN202010421749.9A CN111599143A (en) | 2020-05-18 | 2020-05-18 | Volume reminding method, volume reminding device and range hood |
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| CN202010421749.9A CN111599143A (en) | 2020-05-18 | 2020-05-18 | Volume reminding method, volume reminding device and range hood |
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