CN111020977A - Detergent liquid level detection method and washing machine - Google Patents
Detergent liquid level detection method and washing machine Download PDFInfo
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- CN111020977A CN111020977A CN201911239328.8A CN201911239328A CN111020977A CN 111020977 A CN111020977 A CN 111020977A CN 201911239328 A CN201911239328 A CN 201911239328A CN 111020977 A CN111020977 A CN 111020977A
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- 239000007788 liquid Substances 0.000 title claims abstract description 122
- 239000003599 detergent Substances 0.000 title claims abstract description 110
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000005406 washing Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 6
- 239000000523 sample Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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Abstract
The invention provides a detergent liquid level detection method and a washing machine. Laser receiver sets up and just can receive laser signal's position in air medium when laser emitter launches laser downwards, utilize the principle that can take place the refraction when light propagates in different media, through laser emitter launch laser downwards, when the liquid level does not cross laser receiver, because light can take place the refraction when entering into detergent class fluid medium from air fluid medium, laser receiver can not receive laser signal, the system automatic judgement this liquid level has reached the height at this laser receiver place, the precision of detergent liquid level detection has been guaranteed.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to a detergent liquid level detection method and a washing machine.
Background
At present, many washing machine manufacturers apply the automatic detergent feeding device to the full-automatic washing machine, and the structure of the automatic detergent feeding device is generally as follows: a certain amount of detergent is placed in a detergent storage box in advance, a set of power system is independently arranged in the washing machine and used for pumping the laundry detergent, the power system can be a pump, negative pressure generated after water flows through the power system can be used for sucking the laundry detergent by a siphon pipe, and the like, and when the system judges that the detergent needs to be added in the operation process of the washing machine, the detergent is sucked from the storage box and then put into clothes.
In general design, the detergent storage box is designed as a removable water box, and a user cannot judge the detergent residue inside the detergent storage box by naked eyes based on considerations such as beauty and materials.
For example, chinese patent application No. CN 201420199660.2: a washing machine and a detergent storage system for the washing machine disclose a method for detecting the liquid level of detergent by using probe sensors, wherein the existence of detergent in a detergent container is judged by detecting the conductivity of two probe sensors in the detergent container, and if the two probes are not submerged by the detergent at the same time, a warning is given to remind a user of adding the detergent. The technology can simply detect whether the detergent exists or not, but cannot judge the detergent allowance in real time; secondly, the detection precision of the probe sensor is low, the raw material is metal or alloy, the rust and corrosion are easy to occur after long-term use, and the probability of misjudgment is greatly improved; when the liquid is thick and the liquid level is lower than about 2mm of the probe, the probe can have the condition of wire drawing, at the moment, although the probe is conducted, the liquid level is already lower than the lowest liquid level set by the probe, and the system can judge that the user does not need to be reminded to add the detergent.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a novel detergent liquid level detection mode to solve the problem that the detection precision of the existing probe technology is too low and is easily influenced by the viscosity of detergents under different brands and different temperatures, so that the system is misjudged; the detergent allowance can be monitored in real time, so that a user can more intuitively judge whether the detergent needs to be added.
In order to achieve the purpose, the invention adopts the following technical scheme:
a laser emitter and a laser receiver are correspondingly arranged on two sides of the inner wall of a detergent containing cavity, and the specific liquid level of the detergent is judged according to whether the laser receiver can receive laser emitted by the corresponding laser emitter or not, so that related detection information is sent to a display panel to be displayed. Laser receiver sets up and just can receive laser signal's position in air medium when laser emitter launches laser downwards, utilize the principle that can take place the refraction when light propagates in different media, through laser emitter launch laser downwards, when the liquid level does not cross laser receiver, because light can take place the refraction when entering into detergent class fluid medium from air fluid medium, laser receiver can not receive laser signal, the system automatic judgement this liquid level has reached the height at this laser receiver place, the precision of detergent liquid level detection has been guaranteed.
Further, the laser emitter and the laser receiver correspondingly arranged in the detergent containing cavity are specifically as follows: set up a plurality of laser receiver at detergent holding chamber one side wall face, the laser receiver position that horizontal position is the lowest liquid level, and a plurality of laser receiver is even interval distribution, holds another side wall face in the cavity at the detergent and sets up a plurality of laser emitter, and the laser emitter position that the water level position is the lowest is higher than the setting of minimum liquid level. The information of each liquid level of the detergent can be obtained by arranging a plurality of groups of laser transmitters and laser receivers, so that the real-time monitoring of the liquid level of the detergent is realized.
Further, laser receiver and laser emitter all are provided with four, and concrete mounting means is as follows: presetting a lowest liquid level x, equally dividing the residual length of the detergent containing cavity after subtracting x cm from the height of the detergent containing cavity into four sections at a distance of y cm, uniformly distributing laser receivers at intervals of y cm, uniformly distributing laser transmitters at intervals of y cm, and enabling the lowest water level position of each laser transmitter to correspond to the position of a second laser transmitter from bottom to top of the laser transmitter. Through setting for minimum liquid level, can effectively remind the user to add the detergent, the laser emitter and the laser receiver of equidistance distribution can guarantee that laser signal's receipt is accurate, ensure that the liquid level information of feedback is correct.
Further, the specific liquid level of the detergent is judged according to whether the laser receiver can receive the laser emitted by the corresponding laser emitter as follows: when the laser receiver receives the laser emitted by the corresponding laser emitter, the liquid level of the detergent is judged not to reach the position of the laser receiver; and when the laser receiver cannot receive the laser emitted by the corresponding laser emitter, the liquid level of the detergent is judged to reach the position of the laser receiver. By utilizing the principle that light can be refracted when being transmitted in different media, whether the laser receiver is submerged by the detergent is judged by judging whether the laser receiver receives laser or not, and then the specific liquid level of the detergent at present is accurately judged.
Further, laser emitter is divided into first laser emitter, second laser emitter, third laser emitter and fourth laser emitter from bottom to top, laser receiver is divided into first laser receiver, second laser receiver, third laser receiver and fourth laser receiver from bottom to top, first laser receiver position is set for first liquid level, second laser receiver position is set for the second liquid level, third laser receiver position is set for the third liquid level, fourth laser receiver position is set for the fourth liquid level, judges the concrete liquid level of detergent according to whether laser receiver receives laser. The liquid level information of the detergent containing cavity is clearly distinguished, the laser emitter and the laser receiver correspond to each other according to the interval, the specific liquid level of the detergent at present can be reflected in real time, and a user can perform corresponding operation according to the liquid level of the detergent.
Further, the specific liquid level of the detergent is judged according to whether the laser receiver receives the laser specifically as follows: when all the laser signal receivers receive the signals, the controller judges that the liquid level does not reach the first liquid level, the controller feeds back a data processing result to the display panel, and the display panel prompts a user that the detergent is too little and needs to be added. When the laser signal receivers all receive the signals, the fact that the detergent does not pass through the first laser receiver is indicated, the fact that the detergent liquid level does not reach the first liquid level is also indicated, detergent is absent, and a user is reminded of adding the detergent.
Further, the specific liquid level of the detergent is judged according to whether the laser receiver receives the laser specifically as follows: when the first laser receiver does not receive the signal and the second laser receiver receives the signal, the controller judges that the liquid level reaches the first liquid level and does not reach the second liquid level, and the controller feeds back a data processing result to the display panel.
Further, the specific liquid level of the detergent is judged according to whether the laser receiver receives the laser specifically as follows: when the second laser receiver does not receive the signal and the third laser receiver receives the signal, the controller judges that the liquid level reaches the second liquid level and does not reach the third liquid level, and the controller feeds back a data processing result to the display panel.
Further, the specific liquid level of the detergent is judged according to whether the laser receiver receives the laser specifically as follows: when the third laser receiver does not receive the signal and the fourth laser receiver receives the signal, the controller judges that the liquid level reaches the third liquid level and does not reach the fourth liquid level, and the controller feeds back a data processing result to the display panel. The fourth liquid level is also the highest liquid level, i.e. the highest liquid level of the detergent should not exceed the fourth laser receiver, preventing the washing liquid from overflowing.
The washing machine comprises a machine body, wherein a detergent containing cavity is formed in the machine body, a plurality of laser transmitters and laser receivers are arranged on two sides of the inner wall of the detergent containing cavity along diagonal lines respectively, and the laser transmitters and the laser receivers are distributed in a one-to-one correspondence mode. The laser emitter emits laser, the laser is firstly transmitted in an air medium and then refracted to the laser receiver through the detergent, and the laser receiver can receive the laser to indicate that the liquid level of the detergent does not reach the position of the laser receiver, so that the specific liquid level of the detergent is judged.
The detergent liquid level detection method and the washing machine provided by the invention have the beneficial effects that: by adopting the mode that the laser emitter emits laser and the laser receiver receives laser signals at the other end, the condition that the system is judged by mistake due to the overlarge viscosity of the detergent can be avoided, and the detection precision is greatly improved; secondly, by arranging laser transmitters and laser receivers with different numbers, the real liquid level of the detergent can be monitored in real time.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
fig. 2 is a schematic view of the washing machine according to the present invention.
In the figure: 1. a detergent containing chamber; 2. a first laser transmitter; 3. a second laser transmitter; 4. a third laser transmitter; 5. a fourth laser transmitter; 6. a first laser receiver; 7. a second laser receiver; 8. a third laser receiver; 9. and a fourth laser receiver.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
Example 1: a detergent liquid level detection method.
As shown in FIG. 1, a detergent liquid level detection method specifically comprises the following steps:
the specific positions of arranging the laser transmitters and the laser receivers are preset to be a minimum liquid level x, the residual length of the detergent containing cavity 1 after subtracting xcm is equally divided into four sections, the distance is y cm, the first laser receiver 6 is arranged at the height of the minimum liquid level of the required right arm surface, the first laser transmitter 2 is arranged on the left wall surface and is higher than the height of the first laser receiver 6 y cm, the second laser receiver 7 is arranged at the position of the right arm surface and the first laser transmitter 2, the second laser transmitter 3 is arranged on the left wall surface and is higher than the height of the second laser receiver 7 y cm, and the residual third laser transmitter 4, the residual third laser receiver 8, the residual fourth laser transmitter 5 and the residual fourth laser receiver 9 are sequentially arranged.
When all the laser receivers receive the signals, the controller judges that the liquid level does not reach a first liquid level (lowest), the controller feeds back a data processing result to the display panel, and the display panel prompts a user that the detergent is too little and needs to be added;
when the first laser receiver 6 does not receive the signal and the second laser receiver 7 receives the signal, the controller judges that the liquid level reaches the first liquid level and does not reach the second liquid level, the controller feeds back a data processing result to the display panel, and the display panel displays that the liquid level reaches the second liquid level;
when the second laser receiver 7 does not receive the signal and the third laser receiver 8 receives the signal, the controller judges that the liquid level reaches the second liquid level and does not reach the third liquid level, the controller feeds back a data processing result to the display panel, and the display panel displays that the liquid level reaches the third liquid level;
when the third laser receiver 8 does not receive the signal and the fourth laser receiver 9 receives the signal, the controller judges that the liquid level has reached the third liquid level and has not reached the fourth liquid level, the controller feeds back the data processing result to the display panel, and the display panel displays that the liquid level reaches the fourth liquid level (namely, the highest liquid level setting should not be passed through the fourth laser receiver).
The laser emitter is higher than the laser receiver all the time in the position that sets up, and when the liquid level crossed laser receiver, the laser that laser emitter transmitted was through the air earlier, then passes through the detergent again, takes place the refraction at last and makes laser receiver can not receive laser signal. The relationship between the laser transmitters and the laser receivers is one-to-one, the angle of downward laser transmission of the first laser transmitter 2 is certain, and the vertical position and the horizontal position which can be refracted to can be determined, at this time, because of the diagonal distribution, the second laser receiver 7 is arranged at a distance which is farther than the lowest vertical position and the farthest horizontal position which can be reached by the first laser transmitter 2, so as to prevent the second laser receiver 7 from receiving the signal of the first laser transmitter 2 to cause misjudgment.
In this embodiment, set up a plurality of laser emitter and laser receiver along diagonal equidistance respectively on two walls of detergent holding chamber 1, the angle that laser emitter transmitted laser is slightly downward, laser receiver sets up the position that can receive laser signal just in air medium when laser emitter transmits laser downwards, utilize the principle that can take place refraction when spreading in different media, transmit laser downwards through laser emitter, when the liquid level does not cross laser receiver, because light can take place the refraction when entering detergent class fluid medium from air fluid medium, laser receiver can not receive laser signal, the system automatic judgement this liquid level has reached the height at this laser receiver place. The laser signal transmitters and the laser signal receivers are arranged in a plurality of groups, so that the real-time monitoring of the liquid level of the detergent can be realized through the laser transmitters and the laser receivers in each group.
Example 2: a washing machine.
The washing machine comprises a machine body, wherein a detergent containing cavity 1 is formed in the machine body, a plurality of laser transmitters and laser receivers are arranged on two sides of the inner wall of the detergent containing cavity along diagonal lines respectively, and the laser transmitters and the laser receivers are distributed in a one-to-one correspondence mode.
As shown in fig. 2, the laser emitter is divided into a first laser emitter 2, a second laser emitter 3, a third laser emitter 4 and a fourth laser emitter 5 from bottom to top, the laser receiver is divided into a first laser receiver 6, a second laser receiver 7, a third laser receiver 8 and a fourth laser receiver 9 from bottom to top, the first laser receiver 6 is set to be at a first liquid level, the second laser receiver 7 is set to be at a second liquid level, the third laser receiver 8 is set to be at a third liquid level, the fourth laser receiver 9 is set to be at a fourth liquid level, the specific liquid level of the detergent is judged according to whether the laser receiver receives laser, and the specific liquid level of the detergent is monitored in real time.
The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.
Claims (10)
1. A detergent liquid level detection method is characterized in that a laser emitter and a laser receiver are correspondingly arranged on two sides of the inner wall of a detergent containing cavity, the specific liquid level of detergent is judged according to whether the laser receiver can receive laser emitted by the corresponding laser emitter, and then relevant detection information is sent to a display panel to be displayed.
2. The detergent liquid level detection method of claim 1, wherein the corresponding arrangement of the laser emitter and the laser receiver in the detergent containing cavity is specifically as follows: set up a plurality of laser receiver at detergent holding chamber one side wall face, the laser receiver position that horizontal position is the lowest liquid level, and a plurality of laser receiver is even interval distribution, holds another side wall face in the cavity at the detergent and sets up a plurality of laser emitter, and the laser emitter position that the water level position is the lowest is higher than the setting of minimum liquid level.
3. The detergent level detection method of claim 2, wherein four laser receivers and four laser transmitters are provided, and the specific installation manner is as follows: presetting a lowest liquid level x, equally dividing the residual length of the detergent containing cavity after subtracting x cm from the height of the detergent containing cavity into four sections at a distance of y cm, uniformly distributing laser receivers at intervals of y cm, uniformly distributing laser transmitters at intervals of y cm, and enabling the lowest water level position of each laser transmitter to correspond to the position of a second laser transmitter from bottom to top of the laser transmitter.
4. The method for detecting detergent liquid level according to claim 1, wherein said determining the specific detergent liquid level according to whether the laser receiver can receive the laser emitted from the corresponding laser emitter comprises: when the laser receiver receives the laser emitted by the corresponding laser emitter, the liquid level of the detergent is judged not to reach the position of the laser receiver; and when the laser receiver cannot receive the laser emitted by the corresponding laser emitter, the liquid level of the detergent is judged to reach the position of the laser receiver.
5. The detergent level detection method of claim 3, wherein the laser transmitter is divided into a first laser transmitter, a second laser transmitter, a third laser transmitter and a fourth laser transmitter from bottom to top, the laser receiver is divided into a first laser receiver, a second laser receiver, a third laser receiver and a fourth laser receiver from bottom to top, the first laser receiver is set to be at a first level, the second laser receiver is set to be at a second level, the third laser receiver is set to be at a third level, the fourth laser receiver is set to be at a fourth level, and the specific detergent level is determined according to whether the laser receiver receives laser light.
6. The detergent liquid level detection method of claim 5, wherein said determining the specific detergent liquid level based on whether the laser receiver receives the laser light comprises: when all the laser signal receivers receive the signals, the controller judges that the liquid level does not reach the first liquid level, the controller feeds back a data processing result to the display panel, and the display panel prompts a user that the detergent is too little and needs to be added.
7. The detergent liquid level detection method of claim 5, wherein said determining the specific detergent liquid level based on whether the laser receiver receives the laser light comprises: when the first laser receiver does not receive the signal and the second laser receiver receives the signal, the controller judges that the liquid level reaches the first liquid level and does not reach the second liquid level, and the controller feeds back a data processing result to the display panel.
8. The detergent liquid level detection method of claim 5, wherein said determining the specific detergent liquid level based on whether the laser receiver receives the laser light comprises: when the second laser receiver does not receive the signal and the third laser receiver receives the signal, the controller judges that the liquid level reaches the second liquid level and does not reach the third liquid level, and the controller feeds back a data processing result to the display panel.
9. The detergent liquid level detection method of claim 5, wherein said determining the specific detergent liquid level based on whether the laser receiver receives the laser light comprises: when the third laser receiver does not receive the signal and the fourth laser receiver receives the signal, the controller judges that the liquid level reaches the third liquid level and does not reach the fourth liquid level, and the controller feeds back a data processing result to the display panel.
10. The washing machine is characterized by comprising a machine body, wherein a detergent containing cavity is formed in the machine body, a plurality of laser transmitters and laser receivers are arranged on two sides of the inner wall of the detergent containing cavity along diagonal lines respectively, and the laser transmitters and the laser receivers are distributed in a one-to-one correspondence mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911239328.8A CN111020977A (en) | 2019-12-06 | 2019-12-06 | Detergent liquid level detection method and washing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911239328.8A CN111020977A (en) | 2019-12-06 | 2019-12-06 | Detergent liquid level detection method and washing machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112779725A (en) * | 2020-12-28 | 2021-05-11 | 珠海格力电器股份有限公司 | Detergent box liquid level detection method and clothes treatment equipment with same |
| CN113310409A (en) * | 2021-04-25 | 2021-08-27 | 山东英信计算机技术有限公司 | Server vibrates detection device and server |
| CN113768394A (en) * | 2021-01-11 | 2021-12-10 | 北京沃东天骏信息技术有限公司 | Intelligent hand sanitizer, liquid outlet control method, medium and electronic equipment |
| CN114903388A (en) * | 2021-02-09 | 2022-08-16 | 莱克电气股份有限公司 | Cleaning device and liquid level detection method |
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Application publication date: 20200417 |