CN113627232A - Water dispenser control system and control method based on analysis of human body water shortage state - Google Patents
Water dispenser control system and control method based on analysis of human body water shortage state Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 28
- 210000000476 body water Anatomy 0.000 title claims abstract description 27
- 238000004458 analytical method Methods 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 57
- 238000012545 processing Methods 0.000 claims abstract description 54
- 238000004364 calculation method Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000003707 image sharpening Methods 0.000 claims abstract description 12
- 230000035622 drinking Effects 0.000 claims description 5
- 239000003651 drinking water Substances 0.000 claims description 3
- 235000020188 drinking water Nutrition 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000035922 thirst Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 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
- 238000009835 boiling Methods 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
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 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
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002366 mineral element Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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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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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 human body water shortage state analysis, which 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 human lip images; 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 human body water shortage state analysis, the human body water shortage state is analyzed through the lip image, and the water dispenser is further subjected to heating control, so that when a human body needs to drink water, the water dispenser can accurately and timely boil out hot water, energy is saved, the environment is protected, and meanwhile, the water dispenser is rapid and accurate in identification and high in precision.
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 human body water shortage state analysis.
Background
When an office worker sits in front of an office desk for a long time and works, he usually takes initiative to drink water when feeling obvious thirst, and when feeling thirst, the body of the person is in a water shortage state. In the prior art, for example, patent document with patent publication number CN107041683A discloses an intelligent drinking robot capable of reminding a user of water replenishment, which comprises a robot main body, a water dispenser, a walking mechanism, a cup holder, a purification barrel, a rechargeable battery, a camera, an image processing module, a voice prompter and a single chip microcomputer, wherein the purification barrel is arranged above the robot main body and connected with the water dispenser, the rechargeable battery, the image processing module, the voice prompter and the single chip microcomputer are all arranged in the robot main body, the water dispenser comprises a cold water switch and a hot water switch, the walking mechanism is arranged at the bottom of the robot main body, the camera is rotatably arranged on the purification barrel, the walking mechanism, the rechargeable battery, the camera, the image processing module, the voice prompter, the cold water switch and the hot water switch are all electrically connected with the single chip microcomputer, and are compared by pre-storing skin and lip water shortage images, although the recognition water supplement reminding with lower precision is realized, when people drink water, hot water is not boiled in time under most conditions of the water dispensers in the prior art and the prior art, when the water dispensers on the market are mainly heated repeatedly, boiled water can be timely discharged through repeated heating, multiple mineral elements such as calcium, iron and the like in water can be catalyzed to generate corresponding chemical reactions with a filtering agent during repeated heating, in the repeated heating process, the content of oxygen is reduced, substances such as over-standard nitrates can be catalyzed to generate, and the like, so that the human health is not facilitated after long-term drinking of the multiple water, and the water dispenser needs to start working when the water temperature is lower than a certain threshold value, particularly when the weather temperature is lower, the water boiling frequency of the water dispenser is greatly accelerated, and energy is wasted to a certain degree through repeated heating, it is not in accordance with the sustainable development concept.
In view of the above technical problems, it is desirable to improve.
Disclosure of Invention
The invention aims to provide a water dispenser control system and a control method based on analysis of a water shortage state of a human body, aiming at the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a drinking machine control system based on human body water shortage state analysis 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 human lip images;
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 scale wave skinning area of the lips to the lip area of the human lips 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.
Preferably, the camera is arranged at the designated position and used for segmenting and extracting the human lip image after acquiring the human body image at the designated position.
Preferably, the processing of the human lip image by the image processing module further comprises image darkening processing.
Preferably, the calculation of the water shortage index includes dividing the lip area into regions, calculating the effective rate of each region according to the ratio of the lip scale peeling area of each divided region to the lip area of each region, and calculating the water shortage index according to the effective rate of each region and the region division ratio.
Preferably, the area division of the lip area is 20%, 40%, 20%, 5%, 10%, 5% in sequence from the lower lip to the upper lip and from left to right.
A water dispenser control method based on human body water shortage state analysis comprises the following steps:
s1, a camera of a lip detection module takes a snapshot once every 30 minutes to obtain human lip images;
s2, the image processing module performs saturation enhancement processing on the acquired human lip image, judges whether the saturation reaches a preset saturation threshold value or not, and repeats the saturation enhancement processing if the saturation does not reach the preset saturation threshold value; if so, carrying out image sharpening and contrast enhancement;
s3, the water shortage index calculation module calculates the ratio of the scale wave skinning area of the lips to the lip area of the human lip image processed by the image processing module to obtain a water shortage index, compares the water shortage index with a preset threshold value for judgment, and sends a heating demand instruction to the heating power supply on-off module if the water shortage index is larger than the preset threshold value;
and S4, the heating power supply on-off module receives a heating demand instruction, controls the connection of the heating power supply to heat drinking water, and disconnects the heating power supply after heating is completed.
Preferably, the step S1 further includes: and arranging a camera at a specified position, detecting whether a human body exists at the specified position, if so, starting to snapshot a human body image for the first time, and segmenting and extracting the human body lip image.
Preferably, the step S2 further includes: after the image sharpening and contrast enhancement processing of the human lip image, the image darkening processing is carried out.
Preferably, the calculation method of the water shortage index in step S3 is as follows: for the region division of the lip area, assuming that the peeling area of each region is S1, the total area of each region is S, the ratio of the peeling area of each region to the total area of each region is t, the effective rate is u, u ═ is (S1/S) +0.4, that is, u ═ t +0.4, u ∈ (0, 1), and the water shortage index is W, there are W ═ Σ (the effective rate of each region to the region division ratio), and W ∈ (0, 1).
Preferably, in the calculation of the water shortage index, the area division of the lip area from the lower lip to the upper lip and from left to right is 20%, 40%, 20%, 5%, 10% and 5% in sequence; the preset threshold value for the water shortage 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 human body water shortage state analyze the human body water shortage state through the lip image, and further perform heating control on the water dispenser, so that when a human body needs to drink water, the water dispenser can accurately and timely boil out hot water, energy is saved, the environment is protected, and meanwhile, the identification is rapid and accurate, and the precision is high.
Drawings
Fig. 1 is a schematic flow chart of a water dispenser control method based on analysis of a human body water shortage state according to a first embodiment of the invention;
FIG. 2 is a schematic diagram of a work flow of a lip detection module, an image processing module and a water shortage index calculation module of the water dispenser control system and control method based on analysis of a water shortage state of a human body according to the first embodiment of the present invention;
FIG. 3 is a schematic diagram of a work flow of an image processing module of the water dispenser control system and the control method based on analysis of human body water shortage state according to the first embodiment of the present invention;
FIG. 4 is a schematic diagram of a working flow of a heating power on-off module of the water dispenser control system and control method based on analysis of human body water shortage state according to the first embodiment of the present invention;
FIG. 5 is a schematic diagram of a lip image of a certain person obtained by a lip detection module of the water dispenser control system and control method based on analysis of a water shortage state of the person according to the first embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a saturation enhancement process performed on a lip image of a human body by an image processing module of the water dispenser control system and the control method for analyzing a water shortage state of the human body according to the first embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating an image processing module for performing image sharpening and contrast enhancement on human lip images based on a water dispenser control system and a control method for analyzing a human body water shortage state according to a first embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating a human lip image being subjected to image darkening processing by an image processing module of the water dispenser control system and the control method for analyzing the water shortage state of the human body according to the first embodiment of the present invention;
fig. 9 is a schematic diagram of a water shortage index calculation module of the water dispenser control system and the control method for analyzing a water shortage state of a human body for performing region division on a lip image of the human body according to the first embodiment of the invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The first embodiment is as follows:
as shown in fig. 1 to 9, the water dispenser control system and the control method thereof based on human body water shortage state analysis of the embodiment analyze the human body water shortage state through the lip image, and further perform heating control on the water dispenser, so that the water dispenser can accurately and timely boil hot water when a human body needs to drink water, and is energy-saving and environment-friendly.
Specifically, the water dispenser control system based on human body water shortage state analysis comprises a lip detection module, an image processing module, a water shortage index calculation module and a heating power supply on-off module.
Wherein, lip detection module includes the camera for acquire human lip image, it is preferred, lip detection module's camera sets up in assigned position department, for example work table under the worker service environment, after the electric work on the drinking machine device, the camera can detect the worker earlier whether be in on the work table, follow-up image snapshot of linkage again, detect the people face, the image is cut apart and is extracted and obtain human lip image, image processing, the index of lack of water calculates, the threshold value compares, action such as instruction heating, thereby can effectual energy saving and consumption reduction, raise the efficiency. Normally, when the worker drinks water and returns to the work table, although the body moisture is supplemented, the lip peeling of the lips is not improved, and the lip peeling needs about 20 minutes to return to a normal state, and the worker takes a snapshot every 30 minutes based on the slow change of the lip peeling factor. Reasonable time interval, the pictures are taken by candid photograph, and the precision is improved, so that the efficiency can be improved, and the precision can be improved.
The image processing module is used for carrying out saturation enhancement, image sharpening, the processing that the contrast is strengthened to the human lip image that lip detection module acquireed, because the enlargement of image, the colour of lip part becomes dark relatively, add the saturation and can make image color more bright-colored, make lip scale wave part more obvious, be favorable to follow-up processing to lip scale wave skinning part, and is preferred, and the saturation is strengthened and is set for predetermined reasonable value, improves the precision and the efficiency of discernment. The amplified lip image obtained after the saturation enhancement processing has a certain degree of blurring, at this time, image sharpness processing needs to be performed, and the image sharpening can enable the image sharpness to be higher and enable the color of the lip region to be more vivid. The enhancement of the image contrast can enable the lip to generate scale wave peeling parts and non-peeling parts to form sharp contrast, so that the lip scale wave peeling is more accurately identified, and the accuracy of identifying the parts is improved. Further, after the processing of sharpening and contrast, in order to reduce the operation amount and make the recognition more accurate, the processing of the human lip image by the image processing module further comprises image darkening processing, lip parts are darkened, and after the darkening processing, lip scale wave peeling is more prominent and the recognition is more accurate.
And the water shortage index calculation module is used for calculating the ratio of the scale wave peeling area of the lips to the area of the lips of the human lips 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. Further, taking fig. 9 as an example, according to a lot of tests and statistics, when a person is in a water-deficient state, lip peeling generally starts from the corners of the mouth first, namely, the area 1 and the area 3, and as the water-deficient degree increases, the upper lip starts to have a lip peeling phenomenon, but the lip peeling degree and the lip peeling rate in the area 5 are faster than those in the area 4 and the area 6. When the area 2 has scale peeling, the human body always has obvious thirst feeling, according to experimental observation and research, different areas of lips have certain scale peeling sequence and the scale peeling speed is different in the thirst and water shortage process of the human body, therefore, based on the influence degrees of the different areas, the influence ratio of the different areas on the water shortage index is provided, and preferably, the area division ratio of the lip area from the lower lip to the upper lip and the area division ratio from left to right are 20%, 40%, 20%, 5%, 10% and 5% in sequence. Assuming that the skinning area of each region is S1, the total area of each region is S, and the ratio of the skinning area of each region to the total area of each region is t, the effective rate is u, u is (S1/S) +0.4, i.e., u is t +0.4, u belongs to (0, 1), i.e., when the scaling ratio of the skinning area of the region is greater than 0.6, it can be determined that the region reaches 100%. When the water shortage index is W, W ═ Σ (effective rate of each region division ratio) ═ u1 × 20% + u2 × 40% + u3 × 20% + u4 × 5% + u5 × 10% + u6 × 5%, and W ∈ (0, 1). After the water-deficiency index comparison is processed by the algorithm, a corresponding W value can be obtained, the higher the W value is, the more severe the thirst degree, namely the water-deficiency degree of the body is, according to the comparison range of the thirst degree obtained by experimental observation and research, the W is less than 0.5 and is in a water-deficiency state, the W is more than 0.5 and less than 0.6, the water-deficiency degree is slightly less than 0.6, the W is more than 0.6 and less than 0.8, the water-deficiency degree is seriously less than 0.8, therefore, the preset threshold value of the water-deficiency index comparison is set to be 0.5, and when the water-deficiency index is more 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. Whether the water dispenser is in a working state or not can be judged by detecting the current in the loop based on the current change. The heating power controller is internally provided with a control chip, and when the control chip receives an instruction of the water dispenser central controller MCU, the switch can be controlled to be closed. When the current sensor detects a large current, the information of heating water is returned to the MCU through the control chip. When the water heating is finished, the current in the circuit is relatively small, and the control chip returns stop information to the MCU.
The implementation method of the water dispenser based on the analysis of the water shortage state of the human body comprises the following steps:
s1, a camera of a lip detection module takes a snapshot once every 30 minutes to obtain human lip images; preferably, the camera is arranged at the designated position, whether a human body exists at the designated position is detected, if yes, the human body image is taken by snapshot for the first time, and the human body lip image is segmented and extracted.
S2, the image processing module performs saturation enhancement processing on the acquired human lip image, judges whether the saturation reaches a preset saturation threshold value or not, and repeats the saturation enhancement processing if the saturation does not reach the preset saturation threshold value; if so, 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 scale wave skinning area of the lips to the lip area of the human lip image processed by the image processing module to obtain a water shortage index, compares the water shortage index with a preset threshold value for judgment, and sends a heating demand instruction to the heating power supply on-off module if the water shortage index is larger than the preset threshold value;
further, the water shortage index is calculated in the following way: dividing the lip area into regions, wherein the skinning area of each region is S1, the total area of each region is S, the ratio of the skinning area of each region to the total area of each region is t, the effective rate is u, u is (S1/S) +0.4, i.e. u is t +0.4, u belongs to (0, 1), and the water shortage index is W, then W is Σ (the effective rate of each region to the region division ratio), and W belongs to (0, 1); the preferable area division of the lip area is 20%, 40%, 20%, 5%, 10% and 5% in sequence from the lower lip to the upper lip and from left to right; the preset threshold value for the water shortage index comparison is 0.5.
Taking the example shown in fig. 5-9 as an example: 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; region 5, t-0.2473, u-0.6473; region 6, t-0, u-0;
w ═ Σ (effective rate of each region:ratioof region division)
＝u1*20％+u2*40％+u3*20％+u4*5％+u5*10％+u6*5％
＝0.7832*20％+0.8182*40％+0.7754*20％+0*5％+0.6473*10％+0*5％
＝0.70373
0.70373>0.5,0.6<0.70373<0.8, it is known that the human body is in a medium-degree water shortage state at present, and a heating demand instruction is issued.
And S4, the heating power supply on-off module receives a heating demand instruction, controls the connection of the heating power supply to heat drinking water, and disconnects the heating power supply after heating is completed. Preferably, an instruction identification process is added when receiving an instruction of the MCU, so that the working accuracy of the system is improved.
According to the water dispenser control system and the control method based on human body water shortage state analysis, the human body water shortage state is analyzed through the lip image, and then the water dispenser is subjected to heating control, so that when a human body needs to drink water, the water dispenser can accurately and timely boil out hot water, energy is saved, the environment is protected, and meanwhile, the water dispenser is rapid and accurate to recognize, and the accuracy is high.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A drinking machine control system based on analysis of human body water shortage state 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 human lip images;
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 scale wave skinning area of the lips to the lip area of the human lips 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.
2. The water dispenser control system based on human body water shortage state analysis of claim 1, wherein the camera is arranged at a designated position and used for obtaining a human body image at the designated position and then segmenting and extracting a human body lip image.
3. The water dispenser control system based on human body water shortage state analysis of claim 2, wherein the image processing module further comprises image darkening processing for processing human body lip images.
4. The water dispenser control system based on human body water shortage state analysis as claimed in claim 3, wherein the calculation of the water shortage index comprises area division of lip area, the effective rate of each area is calculated according to the ratio of the lip scale wave skinning area of each divided area to the lip area of each area, and the water shortage index is calculated according to the effective rate of each area and the area division ratio.
5. The water dispenser control system based on human body water shortage state analysis of claim 4, wherein the area division of the lip area from the lower lip to the upper lip and from left to right is 20%, 40%, 20%, 5%, 10% and 5% in sequence.
6. A water dispenser control method based on human body water shortage state analysis is characterized by comprising the following steps:
s1, a camera of a lip detection module takes a snapshot once every 30 minutes to obtain human lip images;
s2, the image processing module performs saturation enhancement processing on the acquired human lip image, judges whether the saturation reaches a preset saturation threshold value or not, and repeats the saturation enhancement processing if the saturation does not reach the preset saturation threshold value; if so, carrying out image sharpening and contrast enhancement;
s3, the water shortage index calculation module calculates the ratio of the scale wave skinning area of the lips to the lip area of the human lip image processed by the image processing module to obtain a water shortage index, compares the water shortage index with a preset threshold value for judgment, and sends a heating demand instruction to the heating power supply on-off module if the water shortage index is larger than the preset threshold value;
and S4, the heating power supply on-off module receives a heating demand instruction, controls the connection of the heating power supply to heat drinking water, and disconnects the heating power supply after heating is completed.
7. The method as claimed in claim 6, wherein the step S1 further comprises: and arranging a camera at a specified position, detecting whether a human body exists at the specified position, if so, starting to snapshot a human body image for the first time, and segmenting and extracting the human body lip image.
8. The method as claimed in claim 7, wherein the step S2 further includes: after the image sharpening and contrast enhancement processing of the human lip image, the image darkening processing is carried out.
9. The water dispenser control method based on the analysis of the human body water shortage state as claimed in claim 8, wherein the calculation mode of the water shortage index in the step S3 is as follows: for the region division of the lip area, assuming that the peeling area of each region is S1, the total area of each region is S, the ratio of the peeling area of each region to the total area of each region is t, the effective rate is u, u ═ is (S1/S) +0.4, that is, u ═ t +0.4, u ∈ (0, 1), and the water shortage index is W, there are W ═ Σ (the effective rate of each region to the region division ratio), and W ∈ (0, 1).
10. The water dispenser control method based on the analysis of the human body water shortage state as claimed in claim 9, wherein in the calculation of the water shortage index, the area division of the lip area from the lower lip to the upper lip and from left to right is 20%, 40%, 20%, 5%, 10% and 5% in sequence; the preset threshold value for the water shortage index comparison is 0.5.
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