CN109695126B - Washing machine and method for detecting living objects in washing machine - Google Patents
Washing machine and method for detecting living objects in washing machine Download PDFInfo
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- CN109695126B CN109695126B CN201710994771.0A CN201710994771A CN109695126B CN 109695126 B CN109695126 B CN 109695126B CN 201710994771 A CN201710994771 A CN 201710994771A CN 109695126 B CN109695126 B CN 109695126B
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- 238000005406 washing Methods 0.000 title claims abstract description 359
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000006073 displacement reaction Methods 0.000 claims abstract description 68
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000012790 confirmation Methods 0.000 claims description 28
- 238000002474 experimental method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 11
- 230000008859 change Effects 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000004891 communication Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
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Abstract
The invention provides a washing machine living object detection method and a washing machine, wherein the washing machine living object detection method is used for the washing machine, the washing machine comprises an outer barrel, a sensor module for detecting the displacement of the outer barrel is arranged on the washing machine, and the washing machine living object detection method comprises the following steps: when the washing machine is in a power-on state, the sensor module detects the displacement of the outer barrel in real time, and the washing machine judges whether living objects exist in the washing machine according to the displacement variation of the displacement within a certain time T. Through the technical scheme of the invention, the condition that the existence of the living matters in the outer barrel is detected when the living matters in the washing machine move can be realized, the existence of the living matters in the washing machine can also be detected when the living matters in the washing machine are inactive, a user is reminded in time, and the door lock is opened, so that the safety of the washing machine in the use process is greatly improved, the hidden danger of accidents caused by the existence of the living matters in the washing machine is reduced, and the user trust and the use experience are improved.
Description
Technical Field
The invention relates to the field of washing machines, in particular to a washing machine and a living object detection method thereof.
Background
With the improvement of living standard, people have higher and higher requirements on the washing machine, children have been mistakenly inserted into the washing machine in the washing machine market, parents have no attention to the accident that the washing machine is started to cause injury, and the existing washing machine basically reduces the risk by adding a child lock, but the mode also has potential safety hazard.
The child lock is only an auxiliary means, the child lock can be opened only to ensure that the washing machine keeps the key locking after normal work, the misoperation of irrelevant personnel is avoided, many existing washing machines are designed with the child lock, but for many impeller type washing machines on the market, even if a machine door is not closed when a living object enters, if a child stands in a cylinder and is started by misoperation, the normal water inlet washing can be carried out, and great potential safety hazards are caused; although the door of the drum-type washing machine in the market is locked and can not be opened when water enters the washing machine normally for washing, the situation that the living things enter the washing machine before the washing machine is started and neglect inspection can be avoided, and great damage and even life threat can be caused to children or animals in the washing machine is caused, so that a technical means capable of detecting the state in the drum at any time when the washing machine is in a power-on state is urgently needed.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for detecting the living matters in a washing machine, which can detect the living matters in an outer barrel when the living matters in the washing machine move and can also detect the living matters in the washing machine when the living matters in the washing machine are inactive, so as to prompt a user and open a door lock in time, greatly improve the safety of the washing machine in the using process, reduce the hidden danger of accidents when the living matters exist in the washing machine and improve the trust and use experience of the user.
In order to solve the above technical problems, a first object of the present invention is to provide a method for detecting the presence of a living object in a washing machine, the washing machine including an outer tub, the washing machine being provided with a sensor module for detecting the displacement of the outer tub, the method comprising: when the washing machine is in a power-on state, the sensor module detects the displacement of the outer barrel in real time, and judges whether living objects exist in the washing machine according to the displacement variation of the displacement within a certain time T.
In the technical scheme, when the washing machine is in a power-on state, including a standby state, when the door is closed and the machine door is opened, the displacement of the outer barrel is detected in real time through the sensor module, and whether living objects enter the washing machine or not can be detected uninterruptedly, so that the safety of the washing machine in the use process is greatly improved, and the possibility that the living objects are threatened by lives in the washing machine is reduced.
It should be noted that the time T can be determined in a laboratory according to the model and actual situation of the washing machine and set before the washing machine leaves the factory; the amount of displacement change can be determined to be an appropriate value in a laboratory situation based on the washing machine signal and the actual situation.
It should also be noted that the installation position of the sensor module on the washing machine can be set according to the actual situation, wherein, preferably, the sensor module is arranged at the bottom of the outer drum of the washing machine.
In the above technical solution, preferably, the detecting, by the sensor module, the displacement amount of the outer cylinder in real time includes: the washing machine determines a voltage value corresponding to the displacement according to the signal detected by the sensor module; and judging that living things exist in the washing machine when the change amount of the voltage value is greater than or equal to the set value A within a certain time T.
In the above technical solution, preferably, the value range of the certain time T is: the set value A is obtained by experiments according to the capacity of the washing machine and the value of the time T, and B is a voltage value corresponding to a signal detected by the sensor module when the outer cylinder of the washing machine is not displaced in a laboratory state, preferably, T =100ms, A =5% B.
In any of the above aspects, preferably, when the amount of change in the displacement amount is smaller than the set value a within the certain time T, the following determination is further performed:
and determining the current load weight of the washing machine, and determining that living things exist in the washing machine when the load weight is greater than the rated weight.
In the technical scheme, when the variation of the displacement is smaller than a set value within a certain time T, the washing machine is indicated that no living things exist in the washing machine or the living things do not move, and the current load weight of the washing machine is further judged, so that the reliability of living thing detection in the washing machine is greatly improved, and the possibility of running danger caused by the presence of the living things in the washing machine is reduced.
In the above technical solution, preferably, the determining the load weight of the washing machine includes the steps of: the sensor module converts the detection signal into a voltage value, and the washing machine calculates the load capacity through the voltage value.
In any one of the above technical solutions, preferably, when it is determined that there is a living thing in the washing machine, an alarm message is prompted and/or a door lock is released.
In the technical scheme, the washing machine can be bound with the mobile terminal, when the condition that a living object exists in the washing machine is determined, the washing machine can directly prompt alarm information and can also send the alarm information to the mobile terminal bound with the washing machine, and the alarm information comprises one or a combination of voice alarm information, character alarm information and pattern alarm information. When the door lock of the washing machine is unlocked, determining that living objects exist in the washing machine, and prompting alarm information; when the door lock of the washing machine is locked, alarm information is prompted and/or the door lock is released, and preferably, the door lock is released at the same time when the alarm information is prompted.
It should be noted that the washing machine may continuously prompt at preset intervals when prompting the alarm information, and preferably, the washing machine always prompts the alarm information when not receiving the instruction to cancel the alarm.
In the above technical solution, preferably, the method further includes: the washing machine detects whether a confirmation instruction that a user checks that no living objects exist in the washing machine is received; if the confirmation instruction is received, the alarm information is removed, and if the confirmation instruction is not received, the alarm is continued or the alarm is given at a certain time interval.
In the technical scheme, the washing machine can be bound with the mobile terminal, and can receive an alarm removing instruction received by the washing machine operation panel and also can receive an alarm removing instruction sent by the mobile terminal.
In any of the above technical solutions, preferably, the method for detecting the living matters in the washing machine is executed when the washing machine is powered on and the door is closed.
According to the technical scheme, the method for detecting the living matters of the washing machine is executed when the washing machine is powered on and the machine door is closed, namely the washing machine is powered on and does not work and the machine door is closed.
In the above technical solution, preferably, the method for detecting the living matters in the washing machine includes: step S1, the washing machine is in a power-on state; s2, detecting the displacement of the outer cylinder in real time by a sensor module, and converting the displacement into a voltage value according to a detected signal; s3, judging whether the fluctuation value of the voltage value within 100ms exceeds 5% by the washing machine; s4, if the judgment result is yes, prompting to alarm and releasing the door lock, executing S7, and if the judgment result is no, calculating to obtain the load weight of the washing machine according to the value A; s5, judging whether the calculated load weight of the washing machine is greater than the rated weight or not by the washing machine; s6, if the judgment result is yes, prompting to alarm and releasing the door lock; (ii) a S7, detecting whether a confirmation instruction that whether a user checks whether a living object exists in the washing machine is received or not by the washing machine; step S8, if the confirmation instruction is received, the alarm information is released, step S9 is executed, and if the confirmation instruction is not received, the alarm is continued or the alarm is given at certain time intervals; and step S9, the washing machine waits for receiving a program starting instruction and normally executes the program.
The invention also provides a washing machine adopting any one washing machine living object detection method, which comprises an outer barrel and a sensor module for detecting the displacement of the outer barrel in real time.
By adopting the technical scheme, the invention has the following beneficial effects:
1. when the washing machine is in a power-on state and the living things in the washing machine are in an active state, the sensor module can detect the living things in the washing machine, so that the possibility that the working of the washing machine harms the life of the living things when the living things exist is reduced.
2. When the washing machine is in a power-on state, on one hand, when the living matters in the washing machine are in a static state, the load weight in the washing machine can be detected through the sensor module, whether the living matters exist in the washing machine is determined according to the fact that the load weight exceeds the rated weight, the operation safety of the washing machine can be further improved, on the other hand, the load weight in the washing machine can be detected through the sensor module, when the clothes are overweight, the situation that the washing machine is abnormal exists can be considered, and the possibility of overload operation of the washing machine is reduced.
3. When the washing machine detects that the living objects exist in the washing machine through the sensor module, the alarm information is prompted, at the moment, the user presses the start key, the washing machine cannot execute the program, the running program can be started only after the user confirms that the condition in the drum is normal, and the running safety of the washing machine is further improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a flowchart of a method for detecting the presence of a living object in a washing machine according to a first embodiment of the present invention;
fig. 2 is still another flowchart of a method for detecting the presence of a living object in a washing machine according to a first embodiment of the present invention;
fig. 3 is a schematic structural view of a washing machine according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1, the present embodiment provides a method for detecting a living object of a washing machine, the washing machine includes an outer drum, a sensor module for detecting a displacement of the outer drum is disposed on the washing machine, and the method for detecting a living object of the washing machine includes: when the washing machine is in a power-on state, the sensor module detects the displacement of the outer barrel in real time, and the washing machine judges whether living objects exist in the washing machine according to the displacement variation of the displacement within a certain time T.
In the embodiment, a household washing machine is used, and when a user needs to wash clothes or does not need to wash clothes, the user usually does not pull out a plug of the washing machine for convenience, so that potential safety hazards can be caused by misoperation of live objects entering the washing machine when the washing machine is in a power-on state, namely when a door of the washing machine is opened and the door of the washing machine is closed in a standby state, the displacement of the outer cylinder is detected in real time through the sensor module, whether live objects exist in the washing machine can be detected uninterruptedly, the possibility that the user starts an operation program without checking the live objects entering the washing machine in the standby state of the washing machine is reduced, the safety of the washing machine in the use process is greatly improved, and the possibility that the live objects are threatened by lives in the washing machine is reduced.
It should be pointed out that, for many impeller washing machines on the market, even when the washing machine is normally washed by water, the door can be opened, at this time, living objects enter the washing machine in the working process of the washing machine, when the washing machine is normally washed by water, the outer cylinder of the washing machine can also generate displacement, and the regular displacement change of the outer cylinder of the washing machine in different working stages is measured in a laboratory, so that the proper value of the displacement change quantity generated by the activity of the living objects in the washing process of the washing machine is further set, and whether the living objects enter the washing process of the washing machine can be judged by measuring the displacement change quantity of the inner cylinder and the outer cylinder within a certain time in the normal washing process of the washing machine.
It should be noted that the time T can be determined in a laboratory according to the model and actual situation of the washing machine and set before the washing machine leaves the factory; the amount of displacement change can be determined to be an appropriate value in a laboratory situation based on the washing machine signal and the actual situation.
It should be further noted that the installation position of the sensor module on the washing machine may be set according to actual situations, wherein, preferably, the sensor module is disposed at the bottom of the outer drum of the washing machine, but not limited to the bottom of the outer drum, so as to preferably detect the displacement of the outer drum, the sensor module may be selected according to actual needs, preferably, hall sensors are selected, and accordingly, the number of the hall sensors may be set according to actual needs, such as one or two.
Preferably, the real-time detection of the displacement amount of the outer tub by the sensor module includes: the washing machine determines a voltage value corresponding to the displacement according to the signal detected by the sensor module; and judging that living things exist in the washing machine when the change amount of the voltage value is greater than or equal to the set value A within a certain time T.
In the embodiment, the washing machine determines the voltage value corresponding to the displacement according to the signal detected by the sensor module, so that the displacement can be analyzed and judged more conveniently and accurately, the error of directly utilizing the voltage value variation at a certain time point for judgment is reduced, and the accuracy of the judgment result is improved.
It should be noted that the time T can be determined and selected comprehensively according to the specific model and rated voltage of the washing machine and under different environments in the laboratory.
It should be noted that, if the sensor module is a hall sensor, the output signal of the hall sensor includes a voltage value or a current value, and here, whether there is a living object in the washing machine is judged by the voltage value variation, and the judgment is not limited by the voltage value, and for the hall sensor whose output signal is a current value, a suitable current variation set value is correspondingly determined in a laboratory according to the specific model and rated voltage of the washing machine and different environments, so as to measure the displacement variation of the outer cylinder or the inner cylinder as a standard.
Preferably, the value range of the certain time T is: the set value A is obtained by experiments according to the capacity of the washing machine and the value of the time T, and B is a voltage value corresponding to a signal detected by the sensor module when the outer cylinder of the washing machine is not displaced in a laboratory state, preferably, T =100ms, A =5% B.
In this embodiment, the appropriate time T and the appropriate setting value a can reduce the error caused by the voltage fluctuation due to different use environments and regions, and can reduce the possibility that the washing machine has a living object and is not detected due to an unreasonable value.
It should be noted that, if the sensor module is a hall sensor module whose output signal is a current value, the set value is a current value corresponding to a signal detected by the sensor module when the outer tub of the washing machine is not displaced in a laboratory state.
Preferably, when the amount of change in the displacement amount is smaller than the set value a within a certain time T, the following determination is further made: and determining the load weight of the washing machine, and determining that living matters exist in the washing machine when the load weight is greater than the rated weight.
In the embodiment, when the variation of the displacement is smaller than a set value within a certain time T, the variation of the displacement of the outer drum of the washing machine is indicated to be within an allowable range, no living object or no living object is in the washing machine, the current load weight of the washing machine is further judged, and when the load weight is larger than the rated weight, children or living objects with larger weight enter the outer drum of the washing machine, so that when the living objects are not in motion, the condition in the outer drum of the washing machine is accurately judged according to the load weight, the reliability of living object detection in the washing machine is greatly improved, and the possibility of operation danger caused by the living objects in the washing machine is reduced.
It should be noted that, when the load weight of the washing machine is determined, and the load weight is greater than the rated weight, the clothes added into the washing machine by the user are too much, and at this time, the situation in the outer drum of the washing machine is considered to be abnormal when the living things exist in the washing machine, so that the possibility of overload operation of the washing machine is reduced.
Preferably, the determining of the load weight of the washing machine includes the steps of: the sensor module converts the detection signal into a voltage value, and the washing machine calculates the load capacity through the voltage value.
Preferably, the alarm information is prompted and/or the door lock is released when it is determined that there is a living thing in the washing machine.
In the embodiment, the washing machine can be bound with the mobile terminal, when the existence of a living object in the washing machine is determined, the washing machine can directly prompt alarm information, and the alarm information can also be sent to the mobile terminal bound with the washing machine, wherein the alarm information comprises one or a combination of voice alarm information, character alarm information and pattern alarm information. When the door lock of the washing machine is unlocked, determining that living objects exist in the washing machine, and prompting alarm information; when the door lock of the washing machine is locked, the alarm information is prompted and/or the door lock is released, preferably, the door lock is released while the alarm information is prompted, so that the living objects entering the washing machine can climb out by themselves, the possibility that the living object lock cannot come out in the washing machine is reduced, the potential safety hazard is reduced, and the safety of the washing machine in the using process is further improved.
When the user adds too much clothes into the washing machine, the situation in the outer drum of the washing machine is considered to be abnormal by determining that living objects exist in the washing machine, and the user is prompted to check the situation in the outer drum of the washing machine by prompting alarm information and/or releasing a door lock, so that the possibility of overload operation of the washing machine can be reduced, and the service life of the washing machine can be prolonged.
It should be further noted that the mobile terminal bound to the washing machine includes smart devices such as a smart phone, a tablet computer, and a smart band.
Preferably, the method further comprises the following steps: the washing machine detects whether a confirmation instruction that a user checks that no living objects exist in the washing machine is received; if the confirmation instruction is received, the alarm information is removed, and if the confirmation instruction is not received, the alarm is continued or the alarm is given at certain time intervals.
In the embodiment, the washing machine detects whether a confirmation instruction that a user checks that no living objects exist in the washing machine is received, if the confirmation instruction is received, it is indicated that the condition that the user checks that the washing machine is normal and no living objects exist, the alarm information is released at the moment, and for the alarm information including the voice prompt, the washing machine can not make a sound any more to influence the user experience.
The washing machine may be bound to the mobile terminal, and the washing machine may receive a warning release instruction, a voice warning release instruction, or a gesture warning release instruction received by the washing machine operation panel, and may also receive a warning release instruction sent by the mobile terminal.
Preferably, the washing machine alive detecting method is performed when the washing machine is powered on and the door is closed.
In the embodiment, for a plurality of pulsator washing machines, even when the machine door is opened, water can be normally fed for washing, and for a roller washing machine, when the machine door is opened, water can not be normally fed for washing, so that when the washing machine is powered on and the machine door is closed, the washing machine alive object detection method is executed, compared with the washing machine alive object detection method when the machine door is opened under the power-on condition, the program is simplified, and the safety of the washing machine in the use process is greatly improved.
As shown in fig. 2, in the present embodiment, the method for detecting the living things in the washing machine includes: step S1, the washing machine is in a power-on state; s2, detecting the displacement of the outer cylinder in real time by a sensor module, and converting the displacement into a voltage value according to a detected signal; s3, judging whether the fluctuation value of the voltage value within 100ms exceeds 5% by the washing machine; s4, if the judgment result is yes, prompting to alarm and releasing the door lock, executing the step S7, and if the judgment result is no, calculating to obtain the load weight of the washing machine according to the value A; s5, judging whether the calculated load weight of the washing machine is greater than the rated weight or not by the washing machine; s6, if the judgment result is yes, prompting to alarm and releasing the door lock; s7, detecting whether a confirmation instruction that whether a user checks whether a living object exists in the washing machine is received or not by the washing machine; step S8, if a confirmation instruction is received, the alarm information is removed, step S9 is executed, and if the confirmation instruction is not received, the alarm is continued or the alarm is given at intervals; and step S9, the washing machine waits for receiving a program starting instruction and normally executes the program.
Example two
The present embodiment provides a washing machine 30 adopting the method for detecting the living things in the first embodiment of the above-mentioned embodiment, as shown in fig. 3, comprising an outer tub 302 and a sensor module 304 for detecting the displacement of the outer tub in real time, the washing machine further comprises a microcontroller 306, an alarm device 308, a door lock 310 and a communication module 312; microcontroller 306 is electrically connected to sensor module 304, alarm 308, door lock 310, and communication module 312, respectively.
When the washing machine is in a power-on state, the sensor module 304 detects the displacement of the outer drum in real time, and the microcontroller 306 determines whether living objects exist in the washing machine according to the displacement variation of the displacement within a certain time T.
In this embodiment, when the washing machine is used at home, a user needs the washing machine to wash clothes or does not need to wash clothes, and usually does not pull out a plug of the washing machine for convenience, which makes the washing machine in a power-on state, and a living object enters a misoperation, which may cause a safety hazard, when the washing machine 30 is in the power-on state, including when the door of the washing machine 30 is opened and the door is closed in a standby state, the sensor module 304 detects the displacement of the outer drum in real time, and the microcontroller 306 can determine whether a living object exists in the washing machine 30 according to a signal sent by the sensor module 304, so that the possibility that the living object enters the user and starts an operation program without being checked when the washing machine 30 is in the standby state is reduced, thereby greatly improving the safety of the washing machine 30 in the use process and reducing the possibility that the living object is threatened by life in the washing machine 30.
It should be noted that, for many impeller washing machines on the market, even when the washing machine is normally washed by water, the machine door can be opened, and at this time, living objects enter the washing machine during the working process of the washing machine, and when the washing machine is normally washed by water, the outer cylinder of the washing machine is also displaced. The displacement change of the washing machine outer barrel 302 in different working stages is measured in a laboratory, so that a suitable value of the displacement change caused by the activity of the living things in the washing process of the washing machine 30 is further set, and whether the living things enter the washing process of the washing machine 30 can be judged by measuring the displacement change of the outer barrel 302 in a certain time in the normal washing process of the washing machine 30.
It should be noted that the time T may be determined in a laboratory according to the model and actual conditions of the washing machine 30, and may be set before the washing machine 30 leaves a factory; the amount of displacement change can be determined to be an appropriate value in a laboratory situation based on the washing machine signal and the actual situation.
It should be noted that the installation position of the sensor module 304 on the washing machine 30 can be set according to actual situations, wherein, preferably, the sensor module 304 is disposed at the bottom of the outer tub 302 of the washing machine, but is not limited to being disposed at the bottom of the outer tub 302, so as to preferably detect the displacement amount of the outer tub, the sensor module 304 can be selected according to actual needs, preferably, hall sensors are selected, and accordingly, the number of the hall sensors can be set according to actual needs, such as one or two.
Preferably, the real-time detection of the displacement of the outer cylinder 302 by the sensor module 304 includes: the microcontroller 306 determines a voltage value corresponding to the displacement according to the signal detected by the sensor module 304; when the variation of the voltage value is greater than or equal to the set value a within a certain time T, it is determined that there is a living thing in the washing machine 30.
In this embodiment, the microcontroller 306 determines the voltage value corresponding to the displacement according to the signal detected by the sensor module 304, so that the displacement can be analyzed and determined more conveniently and accurately, the error caused by directly using the voltage value variation at a certain time point for determination is reduced, and the accuracy of the determination result is improved.
It should be noted that the time T may be determined and selected comprehensively according to the specific model and rated voltage of the washing machine 30 and under different environments and in laboratory conditions.
It should be noted that, if the sensor module 304 selects a hall sensor, the output signal of the hall sensor includes a voltage value or a current value, and here, whether there is a living object in the washing machine 30 is determined by the voltage value variation, and the determination is not limited by the voltage value, and for the hall sensor whose output signal is the current value, a suitable current variation setting value is correspondingly determined in a laboratory according to the specific model and rated voltage of the washing machine 30 and different environments, so as to measure the displacement variation of the outer cylinder or the inner cylinder as a standard.
Preferably, the value range of the certain time T is: the set value a is obtained from experiments by taking values of the capacity of the washing machine 30 and the time T, and B is a voltage value corresponding to a signal detected by the sensor module 304 when the outer tub of the washing machine is not displaced in a laboratory state, preferably, T =100ms, a =5% B.
In this embodiment, the appropriate time T and the appropriate setting value a can reduce the error caused by the voltage fluctuation due to different use environments and regions, and can reduce the possibility that the washing machine 30 has a living object and is not detected due to an unreasonable value.
It should be noted that, if the sensor module 304 is a hall sensor module whose output signal is a current value, the setting value is a current value corresponding to the signal detected by the sensor module 304 when the outer tub 302 of the washing machine is not displaced in the laboratory state.
Preferably, when the variation of the displacement is smaller than the set value a within a certain time T, the microcontroller 306 further makes the following determination: the load weight of the washing machine is determined, and when the load weight is greater than the rated weight, it is determined that there is a living thing in the washing machine 30.
In this embodiment, when the variation of the displacement amount is smaller than the set value within a certain time T, the micro-controller 306 indicates that the variation of the displacement amount of the outer tub 302 of the washing machine is within the allowable range, and no living object or living object is in the washing machine 30, further determines the load weight of the washing machine 30, and when the load weight is greater than the rated weight, indicates that a child or living object with a large weight enters into the outer tub 302 of the washing machine, so that when the living object is not in motion, a more accurate determination is made on the condition in the outer tub 302 of the washing machine according to the load weight, thereby greatly improving the reliability of living object detection in the washing machine 30 and reducing the possibility of operation danger due to the presence of living objects in the washing machine 30.
It should be noted that, when the load weight of the washing machine is determined and the load weight is greater than the rated weight, the laundry added to the washing machine 30 by the user is too much, and at this time, it is determined that there is a living thing in the washing machine 30, that is, it is considered that the condition in the outer tub 302 of the washing machine is abnormal, so that the possibility of the overload operation of the washing machine 30 is reduced.
Preferably, the determining of the load weight of the washing machine comprises the steps of: the sensor module 304 converts the detection signal into a voltage value, and the microcontroller 306 calculates the load weight according to the voltage value.
Microcontroller 306 preferably controls alarm device 308 to prompt an alarm and/or release door lock 310 upon determining the presence of a living being in washing machine 30.
In this embodiment, the washing machine 30 may communicate with the mobile terminal through the communication module 312, and when it is determined that a living object exists in the washing machine 30, the washing machine 30 may directly prompt the alarm information by controlling the alarm device 308 through the microcontroller 306, or may control the communication module 312 to send the alarm information to the mobile terminal through the microcontroller 306, where the alarm information includes one or a combination of voice alarm information, text alarm information, and pattern alarm information. When the washing machine door lock 310 is unlocked, the existence of living objects in the washing machine 30 is determined, and the micro-control 306 controls the alarm device 308 to prompt alarm information; when the washing machine door lock 310 is locked, the microcontroller 306 controls the alarm device 308 to prompt alarm information and/or release the door lock 308, preferably, the microcontroller 306 controls the door lock 308 to release the locking while controlling the alarm device 308 to prompt the alarm information, so that a living object entering the washing machine 30 can climb out by itself, the possibility that the living object lock cannot come out in the washing machine 30 is reduced, the potential safety hazard is further reduced, and the safety of the washing machine 30 in the use process is further improved.
It should be noted that, when the user adds too many clothes to the washing machine 30, at this time, the microcontroller 306 determines that the condition in the outer tub 302 of the washing machine is abnormal if there is a living object in the washing machine 30, and prompts the warning message by controlling the warning device 308 and/or controls the door lock 308 to unlock, so as to prompt the user to check the condition in the outer tub 302 of the washing machine, thereby reducing the possibility of overload operation of the washing machine and prolonging the service life of the washing machine.
It should be further noted that the mobile terminal in binding communication with the washing machine 30 includes smart devices such as a smart phone, a tablet computer, and a smart band.
Preferably, the method further comprises the following steps: the microcontroller 306 detects whether a confirmation instruction that the user checks that no living objects exist in the washing machine is received; if the confirmation instruction is received, the alarm device 308 is controlled to remove the alarm information, and if the confirmation instruction is not received, the alarm device 308 is controlled to continuously alarm or alarm at certain time intervals.
In this embodiment, the microcontroller 306 detects whether a confirmation instruction that the user checks that no living object exists in the washing machine is received, if the confirmation instruction is received, it is indicated that the condition of the user in the washing machine 30 is normal and no living object exists, the alarm device 308 is controlled to release the alarm information at this time, and for the alarm information including the voice prompt, the washing machine 30 can not make a sound any more, so that the user experience is affected, on the other hand, the microcontroller 306 controls the alarm device 308 to release the alarm information, so that the washing machine enters a standby state, and the operation instruction can be received again, so that the use by the user is facilitated.
It should be noted that the washing machine 30 may be bound to the mobile terminal, and the washing machine 30 may receive a warning release instruction, a voice warning release instruction, or a gesture warning release instruction received by the washing machine operation panel, or may receive a warning release instruction sent by the mobile terminal through the communication module 312.
Preferably, the washing machine alive detecting method is performed when the washing machine 30 is powered on and the door is closed.
In this embodiment, for many pulsator washing machines, even when the door is opened, water can be normally fed for washing, and for drum washing machines, when the door is opened, water cannot be normally fed for washing, so that when the washing machine 30 is powered on and the door is closed, the washing machine alive detection method is executed, compared with the washing machine alive detection when the door is opened under the power-on condition, the washing machine alive detection is also executed, the program is simplified, and the safety of the washing machine 30 in the use process is greatly improved.
Preferably, the washing machine 30 performs a washing machine alive detecting method including: step S1, the washing machine 30 is in a power-on state; s2, detecting the displacement of the outer cylinder 302 in real time by the sensor module 304, and converting the displacement into a voltage value according to a detected signal; step S3, the microcontroller 306 judges whether the fluctuation value of the voltage value within 100ms exceeds 5% according to the signal sent by the sensor module 304; step S4, if the judgment result is yes, the microcontroller 306 controls the alarm device 308 to prompt an alarm and controls the door lock 310 to unlock, step S7 is executed, and if the judgment result is no, the load weight of the washing machine is calculated according to the value A; step S5, the microcontroller 306 judges whether the calculated load weight of the washing machine is greater than the rated weight; s6, if the judgment result is yes, prompting to alarm and releasing the door lock; step S7, the microcontroller 306 detects whether a confirmation instruction that whether a user checks whether a living object exists in the washing machine is received; step S8, if the confirmation instruction is received, controlling the alarm device 308 to release the alarm information, executing step S9, and if the confirmation instruction is not received, controlling the alarm device 308 to continuously alarm or alarm at certain time intervals; in step S9, the microcontroller 306 waits for receiving a program start instruction, and executes the program normally.
The embodiments in the above embodiments can be further combined or replaced, and the embodiments are only used for describing the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various changes and modifications made to the technical solution of the present invention by those skilled in the art without departing from the design idea of the present invention belong to the protection scope of the present invention.
Claims (6)
1. A washing machine living thing detection method is used for a washing machine and is characterized in that the washing machine comprises a plug and an outer barrel, a sensor module for detecting the displacement of the outer barrel is arranged on the washing machine, and the washing machine living thing detection method comprises the following steps:
when the washing machine plug is in a power-on state, including a standby state, the door is closed and the machine door is opened;
when the plug of the washing machine is in a power-on state, the sensor module detects the displacement of the outer barrel in real time, and the washing machine judges whether living objects exist in the washing machine according to the displacement variation of the displacement within a certain time T;
the real-time displacement volume that detects the urceolus of sensor module includes: the washing machine determines a voltage value corresponding to the displacement according to the signal detected by the sensor module;
when the variation of the voltage value is greater than or equal to a set value A within the certain time T, judging that living things exist in the washing machine;
when the variation of the displacement is smaller than the set value A within a certain time T, the following judgment is further carried out:
determining the load weight of the washing machine, and determining that living matters exist in the washing machine when the load weight is greater than the rated weight;
the value range of the certain time T is as follows:
the set value A is obtained by experiments according to the capacity of the washing machine and the value of time T, B is a voltage value corresponding to a signal detected by the sensor module when the outer cylinder of the washing machine does not displace in a laboratory state, and A =5%B;
when the existence of living objects in the washing machine is determined, prompting alarm information and/or releasing a door lock;
the washing machine detects whether a confirmation instruction that a user checks that no living objects exist in the washing machine is received;
if the confirmation instruction is received, the alarm information is removed, and if the confirmation instruction is not received, the alarm is continued or the alarm is given at certain time intervals.
2. The method as claimed in claim 1, wherein T =100ms.
3. The washing machine alive detection method according to claim 1, wherein the determining of the washing machine load weight comprises the steps of:
the sensor module converts the detection signal into a voltage value, and the washing machine calculates the load weight according to the voltage value.
4. A washing machine alive detection method according to any one of claims 1 to 3, wherein the washing machine alive detection method is performed when the washing machine is in a power-on and door-closed state.
5. The method for detecting the alive of the washing machine according to the claim 4, characterized by comprising the following steps:
step S1, the washing machine is in a power-on state;
s2, detecting the displacement of the outer cylinder in real time by the sensor module, and converting the displacement into a voltage value according to a detected signal;
s3, judging whether the fluctuation value of the voltage value within 100ms exceeds 5% by the washing machine;
s4, if the judgment result is yes, prompting to alarm and releasing the door lock, executing the step S7, and if the judgment result is no, calculating to obtain the load weight of the washing machine according to the value A;
s5, judging whether the calculated load weight of the washing machine is greater than the rated weight or not by the washing machine;
s6, if the judgment result is yes, prompting to alarm and releasing the door lock;
s7, detecting whether a confirmation instruction that whether a user checks whether a living object exists in the washing machine is received or not by the washing machine;
step S8, if a confirmation instruction is received, the alarm information is removed, step S9 is executed, and if the confirmation instruction is not received, the alarm is continued or the alarm is given at intervals;
and S9, the washing machine waits for receiving a program starting instruction and normally executes the program.
6. A washing machine adopting the method for detecting the alive objects in the washing machine according to any one of claims 1 to 5, comprising an outer tub and a sensor module for detecting the displacement amount of the outer tub in real time.
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| CN110512396A (en) * | 2019-08-12 | 2019-11-29 | 青岛海尔洗衣机有限公司 | A kind of control method and clothes treatment device of clothes treatment device |
| CN113529334A (en) * | 2020-04-14 | 2021-10-22 | 青岛海尔洗衣机有限公司 | Control method of clothes treatment device and clothes treatment device |
| CN113718466A (en) * | 2020-05-22 | 2021-11-30 | 青岛海尔洗衣机有限公司 | Washing control method, device, equipment and storage medium |
| CN113774626A (en) * | 2020-06-09 | 2021-12-10 | 青岛海尔洗衣机有限公司 | Fault processing method and device for washing machine, washing machine and storage medium |
| CN112184989A (en) * | 2020-09-28 | 2021-01-05 | 深圳市智莱科技股份有限公司 | Time control method based on in-vivo detection, intelligent cabinet and readable storage medium |
| CN113789641B (en) * | 2021-10-21 | 2023-10-10 | 珠海格力电器股份有限公司 | Washing machine, door closing preventing device, control method, device and storage medium |
| CN114150475B (en) * | 2021-11-26 | 2024-01-12 | 深圳和而泰小家电智能科技有限公司 | Living body detection method, circuit and clothes treatment equipment |
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| KR101019668B1 (en) * | 2008-12-15 | 2011-03-07 | 엘아이지넥스원 주식회사 | Apparatus and method for opening door of washing machine |
| KR101605752B1 (en) * | 2009-04-28 | 2016-03-25 | 삼성전자 주식회사 | Washing machine and method for controlling the same |
| CN104790169B (en) * | 2014-01-20 | 2018-07-06 | 青岛海尔洗衣机有限公司 | A kind of control method for washing machine and washing machine |
| CN104862919A (en) * | 2014-02-21 | 2015-08-26 | 海尔集团公司 | Pulsator washing machine |
| CN106757997B (en) * | 2016-12-07 | 2020-09-29 | 珠海格力电器股份有限公司 | Washing machine safety detection method and washing machine |
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Effective date of registration: 20221024 Address after: 400026 No.303, Block E, No.1 Gangcheng South Road, Jiangbei District, Chongqing Applicant after: Chongqing Haier Front-loading Washing Machine Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. |
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