CN112779725B - Detergent box liquid level detection method and clothes treatment equipment with same - Google Patents
Detergent box liquid level detection method and clothes treatment equipment with same Download PDFInfo
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- CN112779725B CN112779725B CN202011586241.0A CN202011586241A CN112779725B CN 112779725 B CN112779725 B CN 112779725B CN 202011586241 A CN202011586241 A CN 202011586241A CN 112779725 B CN112779725 B CN 112779725B
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- 239000007788 liquid Substances 0.000 title claims abstract description 165
- 239000003599 detergent Substances 0.000 title claims abstract description 119
- 238000001514 detection method Methods 0.000 title claims abstract description 57
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 30
- 230000000007 visual effect Effects 0.000 claims description 10
- 238000011161 development Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
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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
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
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Abstract
The invention provides a detergent box liquid level detection system, which comprises a detergent box, a laser emitting device, a photosensitive device and a development panel, wherein the laser emitting device is arranged on the detergent box; the laser emitting device is arranged on the inner side wall surface of the detergent box and emits laser to the liquid level in the detergent box; the photosensitive device is arranged on the opposite side wall surface of the detergent box corresponding to the installation surface of the laser emitting device and receives the laser signal emitted by the laser emitting device; the developing panel is arranged at one or more positions on the wall surface of the detergent box and receives laser signals emitted by the laser emitting device; laser emitted by the laser emitting device is reflected on the liquid level of the liquid to emit a laser signal to the photosensitive device and/or the developing panel; and receiving laser signals reflected by liquid levels of different liquid levels through the photosensitive device and/or the developing panel, and detecting the signals through the photosensitive device and/or developing through the developing panel to obtain the actual liquid level in the detergent box.
Description
Technical Field
The invention relates to the technical field of clothes treatment equipment, in particular to a liquid level detection method and clothes treatment equipment with the same.
Background
The laundry treating apparatus is a necessity of modern home life, and the amount of detergent remaining determines whether a user performs a washing operation or supplements the detergent. The current liquid level detection methods of the clothes treatment equipment are various, and the traditional methods are that floating ball type, probe type and the like are detected by mechanical movement, and the detection methods have the phenomena of measurement errors and the like. For more accurate, more quick carry out liquid level detection, and then improve user experience, also use the sensor to carry out liquid level detection.
In the comparison document CN 109115305B, the light emitting module records the light emitting time and the light receiving module records the light receiving time, and the liquid level is calculated according to the light reflection principle and the light reflection principle, which result in the time difference existing in light transmission when different liquid levels exist, but this technical solution can only support the same kind of detergent or other liquids that are not affected by brands. Different reflectivities of the washing liquid and other liquids can cause errors in the test data of the invention, and in the detergent box, the precision of the receiving module is required to be very high for calculating the time difference of light transmission, thereby increasing the equipment cost.
No effective solution has been proposed at present for how to optimize the detergent level detection method.
Disclosure of Invention
In view of the above, the present invention provides a detergent box liquid level detection system, comprising a detergent box, a laser emitting device, a photosensitive device and a display panel; the laser emitting device is arranged on the inner side wall surface of the detergent box and emits laser to the liquid level in the detergent box; the photosensitive device is arranged on the opposite side wall surface of the detergent box corresponding to the installation surface of the laser emitting device and receives the laser signal emitted by the laser emitting device; the developing panel is arranged at one or more positions on the wall surface of the detergent box and receives laser signals emitted by the laser emitting device; laser emitted by the laser emitting device is reflected on the liquid level of the liquid to emit a laser signal to the photosensitive device and/or the developing panel; and receiving laser signals reflected by liquid levels of different liquid levels through the photosensitive device and/or the developing panel, and detecting the signals through the photosensitive device and/or developing through the developing panel to obtain the actual liquid level in the detergent box.
Optionally, the display panel is arranged at a position where the laser signal emitted by the laser emitting device can be received; the plurality of display panels correspond to the liquid level positions in the plurality of detergent boxes, and when the laser signals are reflected by the liquid level at any liquid level, the laser signals can be transmitted to one display panel to form visible signals.
Optionally, one or more laser emitting devices can be arranged, and when the number of the laser emitting devices is multiple, the liquid level in the detergent box can be accurately obtained after multiple pre-judgment calculations are carried out by emitting multiple paths of laser signals.
Alternatively, the laser signal emitted by the laser emitting device may propagate in air and/or a liquid medium.
Optionally, the detergent box level detection system comprises a reflective device floating on a detergent level within the detergent box; when the laser emitting device sends out a laser signal to the liquid level of the detergent, the laser signal is reflected by the reflecting device.
Optionally, the photosensitive device receives and processes the laser signal using one or more photo-resistors.
Furthermore, the invention also provides a detergent box liquid level detection method, which adopts the liquid level detection system; specifically, the method comprises the following steps:
the method comprises the following steps that a laser emitting device is used for emitting laser to the liquid level of liquid in a detergent box, and the laser is reflected to the wall surface of the detergent box through the liquid level to form a laser signal; the laser signal forms a visible signal through the photosensitive device and/or the developing panel; the position that different display panel set up corresponds different detergent liquid levels, and display panel appears visual signal and shows that the actual liquid level of detergent is located its liquid level position that corresponds.
Furthermore, the invention also provides a clothes treatment device, and a method and a system for detecting the liquid level of the detergent box. Specifically, the detecting step when the laundry treating apparatus detects the detergent box liquid level includes:
s01: starting a liquid level detection system, and emitting a prediction laser signal by a laser emitting device;
s02: if the light sensing device receives the predicted laser signal, the liquid level allowance is small at the moment;
if the light sensing device does not receive the predicted laser signal, the liquid level allowance is large at the moment;
s03: when the step S02 detects that the liquid level allowance is small, the laser emitting device continues to emit detection laser signals;
s04: the display panel receives the detection laser signal and then processes the detection laser signal to form a visual signal to represent the actual liquid level;
s05: when the step S02 detects that the liquid level is too much, the display panel receives the detection laser signal and then processes the detection laser signal to form a visual signal representing the actual liquid level.
According to the liquid level detection system, the photosensitive device and/or the display panel are used for receiving laser signals reflected by liquid levels of different liquid levels, the actual liquid level in the detergent box is obtained through the photosensitive device detection signals and/or the display panel display, the liquid level in the detergent box is accurately determined, a user is reminded of the detergent liquid level before each washing process, and the use experience of the user on the washing process is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly introduced, the drawings described herein are provided to provide a further understanding of the present invention and constitute a part of this application, and the exemplary embodiments and descriptions thereof are provided for explaining the present invention and do not constitute a limitation to the present invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1: according to the embodiment of the detergent box liquid level detection system, the detection schematic diagram is shown when the residual quantity of the detergent in the detergent box is large;
FIG. 2: a schematic diagram of a laser emitting device of an embodiment of a detergent box liquid level detection system according to the invention;
FIG. 3: according to the embodiment of the detergent box liquid level detection system, the detection schematic diagram when the detergent residual quantity in the detergent box is small is shown;
FIG. 4: a schematic diagram of an embodiment of a photosensitive device of a detergent box liquid level detection system according to the present invention;
FIG. 5: a schematic diagram of a developer panel embodiment of a detergent box liquid level detection system according to the present invention;
FIG. 6: a detection flow diagram of an embodiment of a detergent box liquid level detection system according to the present invention;
FIG. 7: the invention relates to a detergent box liquid level detection system, which comprises a display panel, a display panel and a controller, wherein the display panel corresponds to different display panels;
wherein,
1-a laser emitting device; 101-a first laser emitter; 102-a second laser emitter;
2-a photosensitive device;
3-liquid level; 301-a first liquid level; 302-a second liquid level; 303-third liquid level; 304-a fourth liquid level;
4-optical path; 401 — first light path; 402-a second light path; 403-third light path; 404-fourth light path; 405-a first pre-judging light path; 406-a second pre-judging light path;
5-a display panel; 501-a first display panel; 502-a second display panel; 503-a third display panel; 504-a fourth display panel;
wherein, the arrow direction is the path of the laser signal emitted by the laser emitting device.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings, 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.
Those skilled in the art will understand that the devices and methods of the present invention described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the present invention is defined solely by the claims. Features illustrated or described in connection with one exemplary embodiment may be combined with features of other embodiments. Such modifications and variations are intended to be included within the scope of the present invention.
Further, it should be understood that one or more of the following methods or aspects thereof may be performed by at least one control unit or controller. The term "control unit", "controller", "control module" or "main control module" may refer to a hardware device including a memory and a processor, and the term "laundry treating device" may refer to a device similar to the laundry treating device. The memory or computer-readable storage medium is configured to store program instructions, while the processor is specifically configured to execute the program instructions to perform one or more processes that will be described further below. Moreover, it is to be appreciated that the following methods may be performed by including a processor in conjunction with one or more other components, as will be appreciated by one of ordinary skill in the art.
The embodiment provides a detergent box liquid level detection system, as shown in fig. 1-3, comprising a detergent box, a laser emitting device 1, a photosensitive device 2 and a developing panel 5; the laser emitting device 1 is arranged on the inner side wall surface of the detergent box and emits laser to the liquid level in the detergent box; the photosensitive device 2 is arranged on the opposite side wall surface of the detergent box corresponding to the installation surface of the laser emitting device and receives laser signals emitted by the laser emitting device; the display panel 5 is arranged at one or more positions on the wall surface of the detergent box and receives laser signals emitted by the laser emitting device; laser emitted by the laser emitting device is reflected on the liquid level of the liquid to emit a laser signal to the photosensitive device and/or the developing panel; and receiving laser signals reflected by liquid levels of different liquid levels through the photosensitive device and/or the developing panel, and detecting the signals through the photosensitive device and/or developing through the developing panel to obtain the actual liquid level in the detergent box.
Preferably, the display panel 5 is disposed at a position where it can receive the laser signal emitted from the laser emitting device 1; the plurality of display panels 5 correspond to the liquid level positions in the plurality of detergent boxes, and when the laser signals are reflected by the liquid level at any liquid level, the laser signals are transmitted to one display panel to form visible signals.
Preferably, as shown in fig. 2, one or more laser emitting devices 1 may be provided, and when the number of the laser emitting devices is multiple, the liquid level in the detergent box is accurately obtained after multiple pre-judgment calculations are performed by emitting multiple laser signals.
Preferably, the laser signal emitted by the laser emitting device 1 may propagate in air and/or a liquid medium.
Preferably, the detergent box level detection system comprises a reflection device floating on the detergent level in the detergent box; when the laser emitting device sends out a laser signal to the liquid level of the detergent, the laser signal is reflected by the reflecting device.
Preferably, the photosensitive device receives and processes the laser signal using one or more photo-resistors, as shown in fig. 4.
Further, the embodiment also provides a detergent box liquid level detection method, which adopts the liquid level detection system; specifically, the method comprises the following steps:
the laser emitting device 1 is used for emitting laser to the liquid level in the detergent box, and the laser is reflected by the liquid level and emitted to the wall surface of the detergent box to form a laser signal; the laser signal forms a visible signal through the photosensitive device 2 and/or through the developing panel 5; the positions of different display panels 5 correspond to different detergent liquid levels 3, and the display panels 5 generate visual signals to indicate that the actual detergent liquid levels 3 are located at the corresponding liquid level positions.
Further, as shown in fig. 6, the present embodiment also provides a laundry treating apparatus, a method for detecting a liquid level of a detergent box and a detecting system thereof. Specifically, the detecting step when the laundry treating apparatus detects the detergent box liquid level includes:
s01: starting a liquid level detection system, and emitting a prediction laser signal by a laser emitting device;
s02: if the light sensing device receives the predicted laser signal, the liquid level allowance is small at the moment;
if the light sensing device does not receive the predicted laser signal, the liquid level allowance is large at the moment;
s03: when the step S02 detects that the liquid level allowance is small, the laser emitting device continues to emit detection laser signals;
s04: the display panel receives the detection laser signal and then processes the detection laser signal to form a visual signal to represent the actual liquid level;
s05: when the step S02 detects that the liquid level is too much, the display panel receives the detection laser signal and then processes the detection laser signal to form a visual signal representing the actual liquid level.
Preferably, according to an aspect of the present embodiment, as shown in fig. 1 to 3, two laser emitting devices, namely a first laser emitter 101 and a second laser emitter 102, which form a fixed angle α with the vertical direction, are installed at a position of a middle point on the left side inside the detergent box, and when there is no liquid inside the detergent box, laser signals emitted by the two laser emitting devices can be reflected to the middle point on the right side of the detergent box through the middle point on the top and the middle point on the bottom of the detergent box, respectively. A reflecting device floats above the liquid in the detergent box, is a light-tight object block with two surfaces close to a smooth mirror surface and a hollow interior, can float above the liquid level of the detergent and provides conditions for the laser signal to reflect on the liquid level.
Further, the detergent box of the embodiment has five laser signal receiving areas, and provides visual signals for users through the display panel 5, so that the users are accurately prompted about the liquid level in the detergent box. A third development panel 503 having laser signal receiving areas respectively provided in the right half of the middle point of the cassette top; a fourth display panel 504 in the upper half of the middle point on the right side in the cassette; a first display panel 501 at the lower half of the right middle point in the cassette; the photosensitive device 2 at the middle point of the right side in the box preferably uses a photoresistor in the embodiment; a second display panel 502 in the right half of the bottom center of the cassette. The laser signal passes through the five laser receiving areas to judge the liquid residual quantity or the liquid level position of the detergent box.
When a user gives a demand command of liquid level detection, a first laser transmitter 101 of the detection system transmits a laser signal to form a first prejudgment light path 405; at this time, the photoresistor 2 at the right middle point in the detergent box starts to process whether the laser signal is received, if the photoresistor 2 cannot detect the laser signal, the fact that the detergent liquid level allowance is above the middle point of the detergent box is judged because the reflection block above the liquid level is also above the middle point, the first pre-judging light path 405 of the laser emitter 1 is reflected to other areas by the reflection block, and the photoresistor 2 cannot receive the signal. At this time, the first laser emitting device 101 continues to emit the laser signal to start the specific range judgment display of the liquid level margin.
If the photo-resistor 2 detects a laser signal, it indicates that the liquid level remaining amount in the detergent box is below the middle point because the reflection block above the liquid level is above the middle point, the first predetermined optical path 405 of the first laser transmitter 101 is not reflected by the reflection block, and the photo-resistor 2 receives the signal. At this time, the first laser transmitter 101 stops transmitting, and the second laser transmitter 102 starts transmitting a laser signal to start the specific range judgment display of the liquid level margin.
And after the allowance pre-judging process is carried out, the liquid level allowance judging and displaying process is started to be executed. As shown in fig. 7, when the first display panel 501 in the laser receiving area receives a signal, the processor issues an instruction of "sufficient" liquid level remaining amount to the display module, and the user can check that the detergent liquid level remaining amount is in the "sufficient" state; when the second display panel 502 of the laser receiving area receives the signal, the processor gives a command of more liquid level allowance to the display module, and the user can check that the detergent liquid level allowance is more; when the third display panel 503 of the laser receiving area receives the signal, the processor gives an instruction of "small amount" of liquid level allowance to the display module, and the user can check that the detergent liquid level allowance is in the "small amount" state; when the fourth display panel 504 in the laser receiving area receives the signal, the processor gives an instruction that the liquid level residual amount is insufficient to the display module, and the user can check that the detergent liquid level residual amount is insufficient.
Further, according to an aspect of the present embodiment, the laser receiving area may be installed with a plurality of closely arranged photo resistors as the receiving laser signal, but may cause inaccurate measurement in consideration of the precision of the photo resistors; however, due to the fact that the number of the photoresistors is large, after the detergent is used for one time or multiple times, the next or a certain photoresistor can detect a laser signal, and then liquid level allowance is displayed. But may affect the user experience.
At this time, as shown in fig. 4, there are several closely arranged photo resistors a, B and C in the laser receiving area, and accordingly, laser signals can be emitted as an optical path a, an optical path B and an optical path C. Suppose that the photo-resistor a has a problem in quality but the photo-resistor B has a good quality, or the photo-resistor A, B has a problem in quality accuracy but the photo-resistor C has a good quality. When the light path enters the receiving area, the corresponding light path a is reflected by the liquid level allowance at the moment, and the laser signal of the light path a cannot be received due to the quality problem of the photoresistor A, so that the real-time liquid level allowance measurement cannot be completed. After the user uses the laundry detergent once or several times, the corresponding light path B or the corresponding light path C is reflected by the liquid level allowance after the user uses the laundry detergent once or several times, and the photosensitive resistor B or C can detect the signal of the area and indicate that the state of the receiving area is sufficient.
Further, in an embodiment of the display panel device 5 shown in fig. 5, in order to enable a user to have more detailed liquid level residual amount display information, each region may be divided into three parts, that is, each region has three shift positions for liquid level residual amount, when the first display panel 501 in the laser receiving region displays "sufficient", when the light path enters the "1" shift position of the "sufficient" region, the "sufficient" two-character ground color of the display module displays green, and when the light path enters the "2" shift position, the "sufficient" two-character ground color displays yellow; when the gear 3 is entered, the background color of the Chinese character 'fu' is displayed in red. The detergent allowance at the 1 gear is larger than that at the 2 gear and is larger than that at the 3 gear. Similarly, other laser receiving areas may use the above prompting method.
According to the liquid level detection system, the photosensitive device and/or the display panel are used for receiving laser signals reflected by liquid levels of different liquid levels, the actual liquid level in the detergent box is obtained through the photosensitive device detection signals and/or the display panel display, the liquid level in the detergent box is accurately determined, a user is reminded of the detergent liquid level before each washing process, and the use experience of the user on the washing process is improved.
The drawings referred to above and the detailed description of the invention, which are exemplary of the invention, serve to explain the invention without limiting the meaning or scope of the invention as described in the claims. Accordingly, modifications may be readily made by those skilled in the art from the foregoing description. Further, those skilled in the art may delete some of the constituent elements described herein without deteriorating the performance, or may add other constituent elements to improve the performance. Further, the order of the steps of the methods described herein may be varied by one skilled in the art depending on the environment of the process or apparatus. Therefore, the scope of the present invention should be determined not by the embodiments described above but by the claims and their equivalents.
While the invention has been described in connection with what is presently considered to be practical embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (7)
1. A detergent box liquid level detection system, its characterized in that:
comprises a detergent box, a laser emitting device, a reflecting device, a photosensitive device and a developing panel; wherein,
the laser emitting device is arranged on the inner side wall surface of the detergent box and emits laser to the liquid level in the detergent box; the laser emitting device comprises a first laser emitter and a second laser emitter, the first laser emitter and the second laser emitter are arranged at the midpoint of the same side wall of the detergent box and are oppositely arranged along the vertical direction, and included angles alpha are formed between the first laser emitter and the inner wall surface of the detergent box respectively;
the reflecting device floats on the liquid level of the detergent in the detergent box, and the laser emitting device emits a laser signal to the liquid level of the detergent and then reflects the laser signal through the reflecting device;
the photosensitive device is arranged on the opposite side wall surface of the detergent box corresponding to the installation surface of the laser emitting device and receives laser signals emitted by the laser emitting device; if the light sensing device receives the predicted laser signal, the liquid level allowance is small at the moment; if the light sensing device does not receive the predicted laser signal, the liquid level allowance is large at the moment;
the developing panel is arranged at one or more positions on the wall surface of the detergent box and receives laser signals emitted by the laser emitting device; the display panel is arranged at a position capable of receiving the laser signal emitted by the laser emitting device; the plurality of display panels correspond to the liquid level positions in the detergent box, and when the laser signal is reflected by the liquid level at any liquid level, the laser signal is transmitted to one display panel to form a visible signal;
the laser emitted by the laser emitting device is reflected on the liquid level of the liquid to emit a laser signal to the photosensitive device and/or the developing panel;
and receiving laser signals reflected by liquid levels of different liquid levels through the photosensitive device and/or the developing panel, and detecting the signals through the photosensitive device and/or developing through the developing panel to obtain the actual liquid level in the detergent box.
2. The detergent box liquid level detection system of claim 1, wherein:
one or more laser emitting devices can be arranged, and when the number of the laser emitting devices is multiple, the liquid level in the detergent box can be accurately obtained after multiple times of prejudgment calculation is carried out by emitting multiple paths of laser signals.
3. The detergent box liquid level detection system of claim 2, wherein:
the laser signal emitted by the laser emitting device can propagate in air and/or liquid medium.
4. The detergent box liquid level detection system of claim 1, wherein:
the photosensitive device receives and processes the laser signal using one or more photo-resistors.
5. A detergent box liquid level detection method using the detergent box liquid level detection system according to any one of claims 1 to 4, characterized in that:
the laser emitting device is used for emitting laser to the liquid level in the detergent box, and the laser is reflected by the liquid level and emitted to the wall surface of the detergent box to form a laser signal; the laser signal forms a visible signal through the photosensitive device and/or the developing panel; the position that different display panel set up corresponds different detergent liquid levels, the display panel appears visual signal and shows that the actual liquid level of detergent is located its liquid level position that corresponds.
6. A laundry treating apparatus employing the detergent box liquid level detecting system of any one of claims 1 to 4 or the detergent box liquid level detecting method of claim 5.
7. The laundry treating apparatus of claim 6, wherein:
the detecting step when the laundry treating apparatus detects the level of the detergent box includes,
s01: starting a liquid level detection system, and emitting a prediction laser signal by a laser emitting device;
s02: if the light sensing device receives the predicted laser signal, the liquid level allowance is small at the moment;
if the light sensing device does not receive the predicted laser signal, the liquid level allowance is large at the moment;
s03: when the step S02 detects that the liquid level allowance is small, the laser emitting device continues to emit detection laser signals;
s04: the display panel receives the detection laser signal and then processes the detection laser signal to form a visual signal to represent the actual liquid level;
s05: when the step S02 detects that the liquid level is too much, the display panel receives the detection laser signal and then processes the detection laser signal to form a visual signal representing the actual liquid level.
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| CN111927438A (en) * | 2020-10-13 | 2020-11-13 | 中国石油集团川庆钻探工程有限公司 | Monitoring device and monitoring method for liquid level of anti-overflow pipe while drilling |
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