CN113627232B - Water dispenser control system and control method based on analysis of water shortage state of human body - Google Patents
Water dispenser control system and control method based on analysis of water shortage state of human body Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004458 analytical method Methods 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 55
- 238000012545 processing Methods 0.000 claims abstract description 54
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000004364 calculation method Methods 0.000 claims abstract description 17
- 238000003707 image sharpening Methods 0.000 claims abstract description 11
- 238000005728 strengthening Methods 0.000 claims description 6
- 230000007812 deficiency Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 239000003651 drinking water Substances 0.000 claims description 3
- 235000020188 drinking water Nutrition 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 230000035622 drinking Effects 0.000 description 6
- 230000035922 thirst Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000000476 body water Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000003709 image segmentation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/52—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
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Abstract
The invention relates to the technical field of water dispensers, in particular to a water dispenser control system and a control method based on analysis of a water shortage state of a human body, wherein the control system comprises a lip detection module, an image processing module, a water shortage index calculation module and a heating power supply on-off module; the lip detection module is used for acquiring a lip image of a human body; the image processing module is used for carrying out saturation enhancement, image sharpening and contrast enhancement; the water shortage index calculation module is used for obtaining a water shortage index and comparing the water shortage index with a preset threshold value to judge the heating requirement; the heating power supply on-off module is used for controlling the on-off of the heating power supply according to the heating requirement. According to the water dispenser control system and the control method based on the analysis of the water shortage state of the human body, the water shortage state of the human body is analyzed through the lip images, and then the water dispenser is heated and controlled, so that when the human body needs to drink water, the water dispenser can accurately and timely burn out hot water, and the water dispenser control system and the control method are energy-saving and environment-friendly, and are rapid, accurate and high in accuracy in recognition.
Description
Technical Field
The invention relates to the technical field of water dispensers, in particular to a water dispenser control system and a control method based on analysis of a water shortage state of a human body.
Background
When office staff sit in front of the office desk for a long time for working, the office staff usually need to drink water actively when feeling a remarkable degree of thirst, and when people feel thirsty, the bodies of people are in a water-deficient state. The prior art discloses an intelligent drinking robot capable of reminding a user of supplementing water according to patent publication No. CN107041683A, which comprises a robot main body, a drinking machine, a travelling mechanism, a cup holder, a purifying barrel, a rechargeable battery, a camera, an image processing module, a voice prompt and a singlechip, wherein the purifying barrel is arranged above the robot main body and is connected with the drinking machine, the rechargeable battery, the image processing module, the voice prompt and the singlechip are all arranged in the robot main body, the drinking machine comprises a cold water switch and a hot water switch, the travelling mechanism is arranged at the bottom of the robot main body, the camera is rotatably arranged on the purifying barrel, the travelling mechanism, the rechargeable battery, the camera, the image processing module, the voice prompt, the cold water switch and the hot water switch are all electrically connected with the singlechip, and are compared through pre-storing skin and lip water shortage images, although the recognition water supplementing reminding with lower precision is realized, when people drink water, the technology and the water fountain in the prior art do not timely heat hot water in most cases, when the water fountain on the market mainly solves the problem through repeated heating, the repeated heating can timely release boiled water, but the 'thousand-roll' can catalyze various mineral elements such as calcium, iron and the like in water to generate corresponding chemical reaction with a filtering agent in the repeated heating process, the content of oxygen in water is reduced, and substances such as exceeding nitrate and the like can also be catalyzed to generate, so that the 'thousand-roll' is unfavorable for human health after long-term drinking, the water fountain needs to start working when the water temperature is lower than a certain threshold value, especially when the weather temperature is lower, the water heating frequency of the water fountain is also greatly accelerated, the repeated heating wastes energy to a certain extent, not conforming to the concept of sustainable development.
Aiming at the technical problems, the improvement is needed.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art and provides a water dispenser control system and a control method based on analysis of the water shortage state of a human body.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a water dispenser control system based on analysis of a water shortage state of a human body comprises a lip detection module, an image processing module, a water shortage index calculation module and a heating power supply on-off module;
the lip detection module comprises a camera and is used for acquiring a lip image of a human body;
the image processing module is used for carrying out saturation enhancement, image sharpening and contrast enhancement on the human lip image acquired by the lip detection module;
the water shortage index calculation module is used for calculating the ratio of the lip scaling area to the lip area of the human body lip image processed by the image processing module to obtain a water shortage index, and comparing the water shortage index with a preset threshold value to judge the heating requirement;
the heating power on-off module is used for controlling the on-off of the heating power according to the heating requirement.
Preferably, the camera is arranged at a designated position and used for dividing and extracting the lip image of the human body after acquiring the image of the human body at the designated position.
Preferably, the processing of the lip image of the human body by the image processing module further comprises image darkening processing.
Preferably, the calculation of the water shortage index comprises dividing the area of the lip, calculating the effective rate of each area according to the lip scaling area of each divided area and the lip area ratio of each area, and calculating the water shortage index according to the effective rate of each area and the area division ratio.
Preferably, the area division of the lip area from the lower lip to the upper lip is 20%, 40%, 20%, 5%, 10% and 5% from left to right.
A water dispenser control method based on analysis of a water shortage state of a human body comprises the following steps:
s1, capturing images of a camera of a lip detection module at intervals of 30 minutes to obtain lip images of a human body;
s2, the image processing module performs saturation strengthening processing on the acquired lip images of the human body, judges whether the saturation reaches a preset saturation threshold, and if not, repeats the saturation strengthening processing; if the image is obtained, then carrying out image sharpening and contrast enhancement;
s3, the water shortage index calculation module calculates the ratio of the lip scaling area to the lip area of the human body lip image processed by the image processing module, obtains the water shortage index, compares and judges the water shortage index with a preset threshold, and sends a heating demand instruction to the heating power on-off module if the water shortage index is larger than the preset threshold;
s4, the heating power supply on-off module receives a heating demand instruction, controls the communication of the heating power supply to heat drinking water, and cuts off the heating power supply after heating is completed.
Preferably, the step S1 further includes: and placing the camera at the appointed position, detecting whether a human body exists at the appointed position, if so, starting to capture the human body image for the first time, and segmenting and extracting the lip image of the human body.
Preferably, the step S2 further includes: after the image sharpening and contrast enhancement processing of the human lip image, the image darkening processing is performed.
As a preferable solution, the water shortage index in step S3 is calculated by: for the region division of the lip area, let the skinning area of each region be S1, the total area of each region be S, let the duty ratio of the skinning area of each region to the total area of each region be t, the effective rate be u, u= (S1/S) +0.4, i.e., u=t+0.4, u e (0, 1), let the water shortage index be W, there be w=Σ (the effective rate of each region is the area division duty ratio), W e (0, 1).
In the calculation of the water shortage index, preferably, the area division of the lip area from the lower lip to the upper lip and the area division from left to right account for 20%, 40%, 20%, 5%, 10% and 5% in sequence; the preset threshold for the water deficiency index comparison is 0.5.
Compared with the prior art, the water dispenser control system and the control method based on the analysis of the water shortage state of the human body analyze the water shortage state of the human body through the lip images, and further heat the water dispenser, so that when the human body needs to drink water, the water dispenser can accurately and timely burn out hot water, is energy-saving and environment-friendly, and is rapid in identification, accurate and high in accuracy.
Drawings
FIG. 1 is a schematic flow chart of a water dispenser control method based on analysis of a water shortage state of a human body according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a workflow block diagram of a lip detection module, an image processing module, and a water deficiency index calculation module of a water dispenser control system and a control method based on analysis of a water deficiency state of a human body according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a workflow diagram of an image processing module of a water dispenser control system and control method based on analyzing a water shortage state of a human body according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a flow chart of a heating power on-off module of a water dispenser control system and a control method based on analyzing a water shortage state of a human body according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a lip image of a certain human body obtained by a lip detection module of a water dispenser control system and a control method based on analysis of a water shortage state of the human body according to the first embodiment of the invention;
FIG. 6 is a schematic diagram of a water dispenser control system and a control method for enhancing saturation of lip images of a human body based on analysis of a water shortage state of the human body according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a control system and a control method of a water dispenser based on analysis of a water shortage state of a human body according to an embodiment of the present invention, in which an image processing module performs image sharpening and contrast enhancement processing on a lip image of the human body;
FIG. 8 is a schematic diagram of a control system and a control method of a water dispenser based on analysis of a water shortage state of a human body according to an embodiment of the present invention, wherein an image processing module performs image darkening processing on a lip image of the human body;
fig. 9 is a schematic diagram of a water dispenser control system and a water shortage index calculation module for dividing a lip image of a human body according to a first embodiment of the present invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
As shown in fig. 1 to 9, the water dispenser control system and the control method thereof based on the analysis of the water shortage state of the human body in the embodiment analyze the water shortage state of the human body through lip images, and further perform heating control on the water dispenser, so that when the human body needs to drink water, the water dispenser can accurately and timely burn out hot water, and the energy-saving and environment-friendly effects are achieved.
Specifically, the drinking machine control system based on the analysis of the water shortage state of the human body comprises a lip detection module, an image processing module, a water shortage index calculation module and a heating power supply on-off module.
The lip detection module comprises a camera, and is used for acquiring a lip image of a human body, preferably, the camera of the lip detection module is arranged at a designated position, such as a work table under a worker using environment, after the water dispenser device is electrified to work, the camera can detect whether the worker is positioned on the work table, and then follow-up image capturing, face detection, image segmentation and extraction are linked to obtain the lip image of the human body, image processing, water shortage index calculation, threshold comparison, instruction heating and other actions, so that energy conservation and consumption reduction can be effectively achieved, and efficiency is improved. Normally, when a worker drinks water and returns to a work table, although body water is supplemented, the scaly skin of lips is not improved, and the worker can return to a normal state after about 20 minutes, and the worker takes a snapshot every 30 minutes based on the slow change of the skin factor of lips. Reasonable time interval, snap shots, accurate processing not only can improve efficiency, also can improve the precision.
The image processing module is used for carrying out saturation enhancement, image sharpening and contrast enhancement on the human lip image obtained by the lip detection module, and as the image is amplified, the color of the lip part becomes relatively dark, and the added saturation can enable the image color to be more bright, so that the lip scaly part is more obvious, the subsequent processing of the lip scaly part is facilitated, and the preset reasonable value is preferably set for the saturation enhancement, so that the recognition precision and efficiency are improved. The amplified lip image obtained after the saturation enhancement treatment has a certain degree of blurring, and at the moment, image sharpness treatment is needed, so that the image sharpness is higher, and the color of the lip area is more bright. The image contrast enhancement can enable the scaly skinning part of the lips to be in sharp contrast with the non-skinning part, so that the scaly skinning of the lips can be accurately identified, and the accuracy of identifying the part is improved. Further, after the sharpening and contrast processing, in order to reduce the operation amount and enable the recognition to be more accurate, the processing of the human lip image by the image processing module further comprises image darkening processing, the darkening processing is carried out on the lip part, after the darkening processing, the scaling of the lip is more prominent, and the recognition is more accurate.
The water shortage index calculation module is used for calculating the ratio of the lip scaling area to the lip area of the human body lip image processed by the image processing module, obtaining the water shortage index, and comparing the water shortage index with a preset threshold value to judge the heating requirement. Further, taking fig. 9 as an example, according to a large number of tests and statistics, when a person is in a water shortage state, the scaling of lips generally starts from the corners of the mouth, namely, the area 1 and the area 3, and as the water shortage degree deepens, the scaling of the upper lips starts to occur, but the scaling degree and the rate of the area 5 are faster than those of the area 4 and the area 6. When the scale wave skinning appears in the region 2, the human body often has obvious thirst feeling, according to experimental observation and research, different regions of the lips have a certain scale wave skinning sequence in the thirst and water shortage process of the human body, and the scale wave skinning rates are different, so that the influence duty ratio of different regions on the water shortage index is proposed based on the influence degree of different regions, and preferably, the region division of the lip area from the lower lip to the upper lip is 20%, 40%, 20%, 5%, 10% and 5% in sequence. The area of each region is S1, the total area of each region is S, the ratio of the area of each region to the total area of each region is t, the effective rate is u, u= (S1/S) +0.4, i.e., u=t+0.4, u e (0, 1), i.e., it is determined that the region reaches 100% when the ratio of the area of the scale wave skin is greater than 0.6. The water shortage index is set to be W, then w=Σ (each area effective rate divided by area ratio) =u1 × 20% + u2 × 40% + u3%20% + u4%5% + u5%10% + u6%5%, W.epsilon.0, 1. The corresponding W value is obtained after algorithm processing, the higher the W value is, the more severe the thirst degree is, namely the body water shortage degree is, the thirst degree comparison range is obtained according to experimental phenomenon observation and research, W is less than 0.5 and is in a water shortage free state, 0.5 is less than 0.6 and is slightly water shortage, 0.6 is less than 0.8 and is in a range water shortage, W is more than 0.8 and is severely water shortage, therefore, the preset threshold value for water shortage index comparison is set to be 0.5, and when the water shortage index is greater than 0.5, the heating requirement is judged.
The heating power supply on-off module is used for controlling the on-off of the heating power supply according to the heating requirement, when the water dispenser works, the current in the circuit is large, and when the water dispenser stops working, the current in the circuit is relatively small, so that the heating power supply on-off module comprises a heating power supply controller, a current sensor and a switch. The water dispenser can be judged whether to be in a working state or not by detecting the current in the loop based on the current change. The heating power supply controller is internally provided with a control chip, and when the control chip receives an instruction of the central controller MCU of the water fountain, the control chip can control the switch to be closed. When the current sensor detects a large current, the control chip returns the information of heating water to the central controller MCU. When the heating of the water is finished, the current in the circuit is relatively small, and the control chip returns stop information to the central controller MCU.
The water dispenser control method based on the analysis of the water shortage state of the human body comprises the following steps:
s1, capturing images of a camera of a lip detection module at intervals of 30 minutes to obtain lip images of a human body; the camera is preferably arranged at the appointed position, whether a human body exists at the appointed position or not is detected, if so, the first snapshot of the human body image is started, and the human body lip image is extracted in a segmentation mode.
S2, the image processing module performs saturation strengthening processing on the acquired lip images of the human body, judges whether the saturation reaches a preset saturation threshold, and if not, repeats the saturation strengthening processing; if the image is obtained, then carrying out image sharpening and contrast enhancement; further, after the image sharpening and contrast enhancement processing of the human lip image, the image darkening processing is performed.
S3, the water shortage index calculation module calculates the ratio of the lip scaling area to the lip area of the human body lip image processed by the image processing module, obtains the water shortage index, compares and judges the water shortage index with a preset threshold, and sends a heating demand instruction to the heating power on-off module if the water shortage index is larger than the preset threshold;
further, the water shortage index is calculated by the following steps: dividing the area of the lip area, setting the skinning area of each area as S1, setting the total area of each area as S, setting the ratio of the skinning area of each area to the total area of each area as t, setting the effective rate as u, u= (S1/S) +0.4, namely u=t+0.4, u epsilon (0, 1), setting the water shortage index as W, and setting W=sigma (the effective rate of each area is equal to the area division ratio), W epsilon (0, 1); the preferable area division of the lip area is from the lower lip to the upper lip, and the area division from left to right accounts for 20%, 40%, 20%, 5%, 10% and 5% in sequence; the preset threshold for the water deficiency index comparison is 0.5.
Calculated as shown in fig. 5-9: region 1, t=0.3832, u= 0.7832; region 2, t=0.4128, u=0.8128; region 3, t=0.3754, u= 0.7754; region 4, t=0, u=0.4; region 5, t=0.2473, u= 0.6473; region 6, t=0, u=0.4;
w=Σ (effective per region x region division ratio)
=u1*20%+u2*40%+u3*20%+u4*5%+u5*10%+u6*5%
=0.7832*20%+0.8182*40%+0.7754*20%+0.4*5%+0.6473*10%+0.4*5%
=0.74373
0.74373>0.5,0.6<0.74373<0.8, the human body is in the middle range water shortage state at present, send out the demand instruction of heating.
S4, the heating power supply on-off module receives a heating demand instruction, controls the communication of the heating power supply to heat drinking water, and cuts off the heating power supply after heating is completed. Preferably, an instruction identification process is added when the MCU instruction is received, so that the system work accuracy is improved.
According to the water dispenser control system and the control method based on the analysis of the water shortage state of the human body, the water shortage state of the human body is analyzed through the lip image, and then the water dispenser is heated and controlled, so that when the human body needs to drink water, the water dispenser can accurately and timely burn out hot water, and the water dispenser control system and the control method are energy-saving and environment-friendly, and are rapid, accurate and high in accuracy in recognition.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The water dispenser control system based on the analysis of the water shortage state of the human body is characterized by comprising a lip detection module, an image processing module, a water shortage index calculation module and a heating power supply on-off module; the lip detection module comprises a camera and is used for acquiring a lip image of a human body; the image processing module is used for carrying out saturation enhancement, image sharpening and contrast enhancement on the human lip image acquired by the lip detection module; the water shortage index calculation module is used for calculating the ratio of the lip scaling area to the lip area of the human body lip image processed by the image processing module to obtain a water shortage index, and comparing the water shortage index with a preset threshold value to judge the heating requirement; the heating power supply on-off module is used for controlling the on-off of the heating power supply according to the heating requirement;
the calculation of the water shortage index comprises the steps of dividing the area of the lip, calculating the effective rate of each area according to the area of the scales of the lip of each divided area and the area ratio of the lip of each area, and calculating the water shortage index according to the effective rate of each area and the area division ratio;
the area division of the lip area from the lower lip to the upper lip and from left to right accounts for 20%, 40%, 20%, 5%, 10% and 5% in sequence;
the water shortage index is calculated in the following way: for the region division of the lip area, let the skinning area of each region be S1, the total area of each region be S, let the duty ratio of the skinning area of each region to the total area of each region be t, the effective rate be u, u= (S1/S) +0.4, i.e., u=t+0.4, u e (0, 1), let the water shortage index be W, there be w=Σ (the effective rate of each region is the area division duty ratio), W e (0, 1).
2. The water dispenser control system based on analysis of a water shortage state of a human body according to claim 1, wherein the camera is disposed at a designated position for obtaining a human body image at the designated position and then dividing and extracting a lip image of the human body.
3. The water dispenser control system based on analysis of the water shortage state of the human body according to claim 2, wherein the processing of the lip image of the human body by the image processing module further comprises image darkening processing.
4. A water dispenser control method based on analysis of a water shortage state of a human body, applied to the water dispenser control system based on analysis of a water shortage state of a human body as set forth in any one of claims 1 to 3, characterized by comprising the steps of:
s1, capturing images of a camera of a lip detection module at intervals of 30 minutes to obtain lip images of a human body;
s2, the image processing module performs saturation strengthening processing on the acquired lip images of the human body, judges whether the saturation reaches a preset saturation threshold, and if not, repeats the saturation strengthening processing; if the image is obtained, then carrying out image sharpening and contrast enhancement;
s3, the water shortage index calculation module calculates the ratio of the lip scaling area to the lip area of the human body lip image processed by the image processing module, obtains the water shortage index, compares and judges the water shortage index with a preset threshold, and sends a heating demand instruction to the heating power on-off module if the water shortage index is larger than the preset threshold;
s4, the heating power supply on-off module receives a heating demand instruction, controls the communication of the heating power supply to heat drinking water, and cuts off the heating power supply after heating is completed.
5. The method for controlling a water dispenser based on analyzing a water shortage state of a human body as claimed in claim 4, wherein the step S1 further comprises:
and placing the camera at the appointed position, detecting whether a human body exists at the appointed position, if so, starting to capture the human body image for the first time, and segmenting and extracting the lip image of the human body.
6. The method for controlling a water dispenser based on analyzing a water shortage state of a human body as claimed in claim 5, wherein the step S2 further comprises: after the image sharpening and contrast enhancement processing of the human lip image, the image darkening processing is performed.
7. The method of claim 4, wherein the threshold value for water deficiency index comparison is 0.5.
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