CN111568237A - Water dispenser control method, water dispenser and computer readable storage medium - Google Patents
Water dispenser control method, water dispenser and computer readable storage medium Download PDFInfo
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- CN111568237A CN111568237A CN202010132821.6A CN202010132821A CN111568237A CN 111568237 A CN111568237 A CN 111568237A CN 202010132821 A CN202010132821 A CN 202010132821A CN 111568237 A CN111568237 A CN 111568237A
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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
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
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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
- A47J31/4403—Constructional details
- A47J31/4457—Water-level indicators
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
- G06V10/443—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components by matching or filtering
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Abstract
The embodiment of the application discloses a water dispenser control method, a water dispenser and a computer readable storage medium, and the embodiment of the application can acquire a container image of a container placed below a water outlet of the water dispenser; determining whether a port profile of the container is detected from the container image; if the port outline of the container cannot be detected from the container image, prompting a user to place a hand at the port of the container with a preset gesture; acquiring an area surrounded by the preset gesture to obtain a port profile of the container; and controlling the water outlet of the water dispenser according to the port profile. According to the scheme, the port contour of the container can be accurately detected based on the gesture, so that the water outlet of the water dispenser is controlled according to the port contour, the convenience and the accuracy of port contour detection of the container are improved, and the accuracy of control over the water dispenser is improved.
Description
Technical Field
The application relates to the technical field of household appliances, in particular to a water dispenser control method, a water dispenser and a computer readable storage medium.
Background
Along with the improvement of living standard of people and the increasing popularization of water dispensers, the functional requirements of people on the water dispensers are also higher and higher. At present, in the process of using a water dispenser, a user needs to finish quantitative water taking through key operation, and needs to pay attention to the change of the water level in a water cup continuously when receiving water, judge the water yield by human eyes, and manually control water outlet, water cut-off and the like through keys, so that the intelligent degree is low, the user possibly causes overflow of water by slight carelessness, waste of water resources is caused, and the overflowing hot water also possibly causes scalding and the like. In addition, in the process of receiving water, hands cannot be vacated to do other things, and time is wasted to a certain extent. Although some existing water dispensers can set the water outlet amount once, the water dispenser is only suitable for discharging water with a fixed amount to a cup with a fixed size, for example, only a milliliter of water is discharged each time; or the water dispenser is controlled to stop water outlet by positioning the height of the water level in other modes, but the height of the water level cannot be effectively detected for the transparent glass cup, and the accuracy of detecting the height of the water level is low, so that the water dispenser cannot be accurately controlled.
Disclosure of Invention
The embodiment of the application provides a water dispenser control method, a water dispenser and a computer readable storage medium, which can improve the accuracy of control over the water dispenser.
In a first aspect, an embodiment of the present application provides a method for controlling a water dispenser, including:
acquiring a container image of a container placed below a water outlet of the water dispenser;
determining whether a port profile of the container is detected from the container image;
if the port outline of the container cannot be detected from the container image, prompting a user to place a hand at the port of the container with a preset gesture;
acquiring an area surrounded by the preset gesture to obtain a port profile of the container;
and controlling the water outlet of the water dispenser according to the port profile.
In a second aspect, an embodiment of the present application further provides a water dispenser, which includes a memory and a processor, where the memory stores a computer program, and the processor executes any one of the water dispenser control methods provided in the embodiment of the present application when calling the computer program in the memory.
In a third aspect, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium is used for storing a computer program, and the computer program is loaded by a processor to execute any one of the water dispenser control methods provided in the embodiment of the present application.
The method and the device can acquire the container image of the container placed below the water outlet of the water dispenser and detect whether the container image has the port outline of the container; if the port outline of the container does not exist in the container image, prompting a user to place a hand at the port of the container around the port of the container by a preset gesture; and then, acquiring an area surrounded by the preset gesture to obtain a port profile of the container, and controlling the water dispenser to discharge water according to the port profile. According to the scheme, the port contour of the container can be accurately detected based on the gesture, so that the water outlet of the water dispenser is controlled according to the port contour, the convenience and the accuracy of port contour detection of the container are improved, and the accuracy of control over the water dispenser is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a water dispenser control method provided in an embodiment of the present application;
FIG. 2 is a schematic view of a water dispenser provided in the embodiment of the present application without a container placed below the water outlet;
FIG. 3 is a schematic view of a container placed below a water outlet of a water dispenser provided in an embodiment of the present application;
FIG. 4 is a schematic diagram of a preset gesture provided by an embodiment of the present application;
FIG. 5 is a schematic view of a port placed in a container with a preset gesture provided in an embodiment of the present application;
FIG. 6 is a schematic diagram comparing port profiles and water surface boundaries of a vessel provided by an embodiment of the present application;
FIG. 7 is a schematic view of a camera and a light source installation position provided by an embodiment of the present application;
FIG. 8 is another schematic view of a camera and a light source mounting location provided by an embodiment of the present application;
fig. 9 is a schematic structural diagram of a water dispenser provided in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
The flow diagrams depicted in the figures are merely illustrative and do not necessarily include all of the elements and operations/steps, nor do they necessarily have to be performed in the order depicted. For example, some operations/steps may be decomposed, combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The embodiment of the application provides a water dispenser control method, a water dispenser and a computer readable storage medium. The water dispenser control method can be applied to a water dispenser, and can also be applied to a mobile terminal, wherein the mobile terminal can comprise a smart phone, a tablet computer, a camera or a palm computer and the like, and is used for controlling the water dispenser. For example, the mobile terminal may obtain a container image including a container placed below a water outlet of the water dispenser, determine whether a port contour of the container is detected in the container image, prompt a user to place a hand at a port of the container with a preset gesture if the port contour of the container cannot be detected in the container image, then obtain an area surrounded by the preset gesture, obtain the port contour of the container, and at this time, control the water dispenser to discharge water according to the port contour; and so on.
The following description will be made in detail by taking an example in which the water dispenser control method is applied to a water dispenser.
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for controlling a water dispenser according to an embodiment of the present application. The water dispenser control method can comprise steps S101 to S105 and the like, and specifically can be as follows:
s101, obtaining a container image of a container placed below a water outlet of the water dispenser.
The type of the container can be flexibly set according to actual needs, and the container is a water cup such as a plastic cup, a ceramic cup, a glass cup or a vacuum cup.
In some embodiments, prior to obtaining an image of a container containing a container placed under a water outlet of a water dispenser, the water dispenser control method may further comprise: acquiring images below a water outlet of the water dispenser at intervals of preset time to obtain multi-frame images; when the difference between the multiple frames of images is smaller than a first preset threshold value, selecting one image from the multiple frames of images as a background image; collecting an initial image below a water outlet of the water dispenser; and when the difference between the initial image and the background image is greater than a second preset threshold value, determining that the container is placed below the water outlet of the water dispenser, and acquiring an image of the container containing the container.
In order to improve the accuracy of container identification, the port contour of the container can be obtained by background subtraction when the container is judged to be placed below the water outlet of the water dispenser. Specifically, a camera can be preset around the water outlet of the water dispenser and used for collecting images below the water outlet of the water dispenser, wherein the camera can be an infrared camera or other types of cameras, the specific position of the camera can be flexibly set according to actual needs, for example, the camera can be installed above the water outlet in an inclined manner or close to the position of the water outlet, and the like, so that the camera can accurately collect images in a preset area below the water outlet of the water dispenser. Firstly, images below a water outlet of the water dispenser can be collected through the camera at preset time intervals to obtain multi-frame images, the preset time can be flexibly set according to time requirements, for example, the preset time can be set to be 0.5 or 1 second, and when the preset time is set to be 0.5, 6 frames of images can be collected within 3 seconds.
Then, the multi-frame images are compared, whether the difference between each frame of image in the multi-frame images is smaller than a first preset threshold value or not is judged, and the first preset threshold value can be flexibly set according to actual needs. When the difference between each frame of image in the multiple frames of images is smaller than a first preset threshold, it indicates that no container is placed below the water outlet of the water dispenser, as shown in fig. 2, at this time, one image may be selected from the multiple frames of images as a background image, for example, the first frame or the last frame of image that is acquired may be used as the background image. When the difference between each frame of image in the plurality of frames of images is larger than or equal to a first preset threshold value, it is indicated that objects such as a container and the like are placed below the water outlet of the water dispenser, and at the moment, the background image cannot be determined.
It should be noted that, in order to improve the efficiency of obtaining the background image, whether the water dispenser is currently discharging water or not may be detected, if the water dispenser is not currently discharging water, an image below the water outlet of the water dispenser is collected at intervals of a preset time to obtain multiple frames of images, and when the difference between the multiple frames of images is smaller than a first preset threshold value, one image is selected from the multiple frames of images as the background image.
After the background image is obtained, the image below the water outlet of the water dispenser can be collected by the camera in real time or at preset time intervals to obtain an initial image. And comparing the initial image with the background image, and judging whether the difference between the initial image and the background image is greater than a second preset threshold value, wherein the second preset threshold value can be flexibly set according to actual needs. When the difference between the initial image and the background image is greater than a second preset threshold value, it is determined that the container is placed below the water outlet of the water dispenser, as shown in fig. 3, and at this time, the port profile of the container can be acquired. And when the difference between the initial image and the background image is less than or equal to a second preset threshold value, indicating that no container is placed below the water outlet of the water dispenser.
After the container is determined to be placed below the water outlet of the water dispenser, the image of the container containing the container can be acquired through a camera preset near the water outlet of the water dispenser.
S102, judging whether the port outline of the container is detected from the container image.
In some embodiments, determining whether a port profile of a container is detected from the container image may include: when the container for receiving water is not placed below the water outlet of the water dispenser, acquiring an image below the water outlet of the water dispenser to obtain a background image; comparing the container image with the background image to obtain a pixel difference; judging whether the port outline of the container is detected from the container image according to the pixel difference; or carrying out port contour recognition on the container image through the trained recognition model to judge whether the port contour of the container is detected from the container image.
Specifically, when no object such as a container is placed below the water outlet of the water dispenser, the picture (i.e., the image) acquired by the camera is generally fixed, so that when the container for receiving water is not placed below the water outlet of the water dispenser, the image below the water outlet of the water dispenser is acquired by the camera preset in the water dispenser to obtain a background image, and the background image does not contain the container. When an object such as a container is placed in the water receiving area below the water outlet of the water dispenser, the picture of the area where the container is located is obviously different from the background image, so that the collected container image and the background image can be subjected to pixel comparison, for example, the container image and the background image are subjected to difference processing to obtain pixel difference, the pixel difference can comprise pixels of an area where the pixel value in the container image is not matched with the pixel value in the background image, whether the port contour of the container is detected from the container image can be judged according to the pixel difference, for example, if the area where the container is located can be determined according to the area where the pixel difference is located, the edge of the area where the container is detected is the port contour which can be a circle, an ellipse or a polygon, and the like, and at this time, the port contour of the container can be detected from the container image, if the port contour of the container cannot be detected according to the area where the pixel difference is located, it is determined that the port contour of the container is not detected from the container image.
Or, the port contour of the container image can be identified through the trained identification model, and if the port contour of the container can be identified, the port contour of the container can be detected from the container image; if the port profile of the container may not be identified, it is determined that the port profile of the container was not detected from the container image. The type of the recognition model can be flexibly set according to actual needs, the recognition model can be a target detection model SSD or YOLOv3, and the recognition model can also be a convolutional neural network CNN or R-CNN. The recognition model can be trained through a plurality of sample images containing port outlines of containers of different types, and the trained recognition model is obtained.
S103, if the port outline of the container cannot be detected from the container image, prompting a user to place a hand on the port of the container with a preset gesture.
When the port contour of the container cannot be detected from the container image, a prompt message may be output to prompt the user to place a hand at the port of the container with a preset gesture. When the port outline of the container can be detected from the container image, the water dispenser can be controlled to discharge water, and the current image containing the container is collected; and then extracting a water surface boundary generated based on tension formed between the container and water from the current image, and controlling the water dispenser to stop discharging water when the size difference between the port outline and the water surface boundary is smaller than a preset threshold (the preset threshold can be flexibly set according to actual needs).
In some embodiments, prompting the user to place the hand at the port of the container with the preset gesture may include: prompt information is broadcasted through voice, or image and text prompt information is displayed through a preset display screen of the water dispenser, so that a user is prompted to place a hand at a port of the container by preset gestures.
In order to improve the flexibility and accuracy of the control of the water dispenser, for example, a preset voice module of the water dispenser outputs prompt information for placing a hand at a port of a container with a preset gesture through voice broadcasting, or the prompt information for placing the hand at the port of the container with the preset gesture is displayed through a text in a preset display screen of the water dispenser, or the prompt is given through flashing of an indicator light and the like; and so on. Therefore, when the port contour cannot be detected, the user can be timely reminded to place a hand on the port of the container by a preset gesture so as to detect the port contour of the container, and further control the water outlet of the water dispenser.
S104, obtaining an area surrounded by the preset gesture to obtain a port outline of the container.
The preset gesture can be flexibly set according to actual needs, for example, as shown in fig. 4, the preset gesture can be a gesture of a semicircle surrounded by a single hand, or the preset gesture can be a gesture of a circle surrounded by two hands, so that the preset gesture can be attached to the port of the container to approximately form the port contour of the container.
In some embodiments, obtaining the area surrounded by the preset gesture and obtaining the port profile of the container may include: acquiring a semicircular area surrounded by a preset gesture; splicing the semi-circular areas into circular areas, and setting the circular areas as the port outlines of the containers; or acquiring a circular area surrounded by the preset gesture, and setting the circular area as the port outline of the container.
In order to improve the reliability of the port contour acquisition, for example, as shown in fig. 5, an image including a port preset gesture placed in a container may be acquired by a camera, a semicircular region surrounded by the preset gesture is extracted from the image, then the semicircular region may be spliced into a circular region according to the semicircular region, and the circular region is set as the port contour of the container. Or, an image containing a port preset gesture placed in the container can be acquired through the camera, a circular area surrounded by the preset gesture is extracted from the image, and the circular area is set as a port outline of the container.
It should be noted that the preset gesture may also be a user moving a finger, so that the moving finger draws a port contour of the container, so that the port contour of the container may be determined based on the preset gesture, and flexibility of determining the port contour is improved.
And S105, controlling the water outlet of the water dispenser according to the port profile.
In some embodiments, controlling the water dispenser to exit according to the port profile may include: controlling the water outlet of the water dispenser, and acquiring a current image containing a container; extracting from the current image a water surface boundary generated based on the container forming tension with the water; and when the size difference between the port outline and the water surface boundary is smaller than a preset threshold value, controlling the water dispenser to stop discharging water.
After the port contour of the container is determined, the water dispenser can be controlled to start to discharge water, in the water discharging process of the water dispenser, the images of the water receiving area of the container are collected in real time or at preset time intervals through a preset camera, the current image of the container is obtained, and the preset time can be flexibly set according to actual needs.
The water in the container can form an adhesion effect on the inner wall of the container due to the existence of tension, so that the water optically shows optical characteristics such as abnormal refraction effect, and the optical characteristics can be captured and identified through a camera in the view of visual identification technology. Therefore, in the process of water outlet of the water dispenser, after the current image containing the container is acquired, the water surface boundary generated based on the tension formed between the container and the water can be extracted from the current image. In the process of discharging water, the water surface in the container fluctuates due to tension, and an obvious reflective boundary is arranged at the boundary of the inner wall of the container, so that the boundary of the water surface can be obtained through image analysis. For example, the last current image in the current images of multiple frames is compared with the previous N (the specific value of N is flexibly set according to actual needs) images, so as to obtain an area with obvious brightness difference, which is the area of the current water surface, i.e. the water surface boundary.
It should be noted that, in order to reduce the influence of the ambient light of the water dispenser (for example, dark light or direct light from an indoor light source, etc.), a light supplement may be performed by using a preset LED lamp on or near the water dispenser, for example, the light intensity of the environment of the water dispenser may be detected by a light sensor, whether the LED lamp needs to be turned on or not is determined according to the light intensity, if necessary, a current image containing the container is collected after the LED lamp is turned on, and if the LED lamp does not need to be turned on, the current image containing the container is directly collected, so that a water surface boundary generated based on tension formed by the container and water can be accurately extracted from the current image. In addition, in order to improve the accuracy of acquiring the water surface boundary, filtering or smoothing and other operations can be performed on the extracted water surface boundary, so that noise points, cavity points and the like are filtered, and a smooth water surface boundary is obtained.
After the water surface boundary and the port contour of the container are obtained, the port contour and the water surface boundary can be compared, whether the size difference between the port contour and the water surface boundary is smaller than a preset threshold value or not is judged, and the preset threshold value can be flexibly set according to actual needs. The lower the water level is because the less the water quantity in the container is, the smaller the water surface boundary extracted from the current image is; the more the water amount in the container is, the higher the water level is, the larger the water surface boundary extracted from the current image is, therefore, for example, as shown in fig. 6, when the size difference between the port outline and the water surface boundary is greater than or equal to the preset threshold, it indicates that the water amount in the container is less, and at this time, the water outlet state of the water dispenser can be maintained. When the difference between the contour of the port and the boundary of the water surface is smaller than a preset threshold value, the fact that the water amount in the container is large (for example, the water in the container is filled quickly or the water amount in the container reaches 90% or the like) is indicated, namely the water level is close to the distance of the port of the container, the water dispenser can be controlled to stop water outlet at the moment, the water outlet of the water dispenser is automatically controlled, accidents such as scalding caused by overflow of hot water can be effectively reduced, and safety is improved.
It should be noted that, in order to accurately control the water outlet of the water dispenser, a threshold value of the water outlet amount of the primary water outlet of the water dispenser can be set, in the process of water outlet of the water dispenser, the size difference between the port outline of the container and the water surface boundary can be detected, and the water outlet amount of the water dispenser is detected, when the size difference between the port outline of the container and the water surface boundary is detected to be smaller than the preset threshold value, even if the water outlet amount of the water dispenser does not reach the water amount threshold value, the water dispenser is controlled to stop water outlet at the moment; or when the water outlet quantity of the water dispenser does not reach the water quantity threshold value, even if the difference between the port outline of the container and the water surface boundary is not detected to be smaller than the preset threshold value, the water dispenser is controlled to stop water outlet. The problem that the water surface boundary in the container cannot be effectively identified (for example, misjudgment of identification caused by the special design of the port of the container, the material or texture of the inner wall of the container, or the water surface boundary or the port outline cannot be identified caused by the placement mode of the container and the like) and water outlet cannot be stopped in time is avoided.
In some embodiments, acquiring the current image containing the container may include: when the camera preset around the water outlet of the water dispenser collects water vapor or the water outlet temperature of the water dispenser is higher than a preset temperature threshold value, a preset fan is controlled to be started, a filter plate preset by the camera is controlled to be heated, and/or a dust cover preset by the camera is controlled to be heated; after the fan is turned on, the filter plate is heated and/or the dust cover is heated, the current image containing the container is collected through the camera.
Because the water dispenser can generate steam due to overhigh water temperature when hot water is discharged, in order to effectively detect a clear current image, the influence of the steam can be reduced through a fan, a filter plate, a dust cover and the like. Specifically, in an embodiment, a fan may be disposed on the water dispenser, for example, the fan is disposed in the middle of an oblique upper portion of a water outlet of the water dispenser, right above a water receiving area of the water dispenser, or on a side surface of the water receiving area of the water dispenser, or the fan is disposed around the water dispenser, the type and size of the fan may be flexibly set according to actual needs, and the fan is turned on to expel water vapor within a visible range of the camera, so as to improve the quality of images acquired by the camera. When the water dispenser discharges water, whether water vapor exists or not can be detected through cameras or other sensors and the like preset around a water outlet of the water dispenser, when the water vapor is detected, a preset fan is controlled to be started, and after the fan is started, a current image containing a container is acquired through the cameras. Or when the water dispenser discharges water, the water outlet temperature of the water dispenser can be detected, whether the water outlet temperature of the water dispenser is larger than a preset temperature threshold value or not is judged, when the water outlet temperature of the water dispenser is larger than the preset temperature threshold value, a preset fan is controlled to be started, and after the fan is started, a current image containing a container is acquired through the camera. When the water outlet temperature of the water dispenser is less than or equal to the preset temperature threshold, the fan does not need to be started.
In another embodiment, a filter can be arranged near the lens of the camera or at other positions, and water vapor on the lens of the camera can be driven away by heating the preset filter, so that the quality of the image collected by the camera is improved. When the water dispenser goes out water, whether the detection of camera or other sensors etc. that predetermine around the delivery port through the water dispenser exists vapor can be detected, when detecting vapor, the heating of predetermined filter is controlled, and after the filter heating, current image including the container is gathered through the camera. Or when the water dispenser discharges water, the water outlet temperature of the water dispenser can be detected, whether the water outlet temperature of the water dispenser is larger than a preset temperature threshold value or not is judged, when the water outlet temperature of the water dispenser is larger than the preset temperature threshold value, a preset filter plate is controlled to be heated, and after the filter plate is heated, a current image containing a container is collected through a camera. When the water outlet temperature of the water dispenser is less than or equal to the preset temperature threshold, the filter does not need to be heated.
In another embodiment, a dust cover (such as glass, akron force, etc.) may be disposed near or at other positions of the lens of the camera, and the preset dust cover may be heated to expel water vapor on the lens of the camera, thereby improving the quality of the image captured by the camera. When the water dispenser discharges water, whether water vapor exists or not can be detected through cameras or other sensors and the like preset around a water outlet of the water dispenser, when the water vapor is detected, a preset dustproof cover is controlled to be heated, and after the dustproof cover is heated, a current image containing a container is acquired through the cameras. Or when the water dispenser discharges water, the water outlet temperature of the water dispenser can be detected, whether the water outlet temperature of the water dispenser is larger than a preset temperature threshold value or not is judged, when the water outlet temperature of the water dispenser is larger than the preset temperature threshold value, a preset dustproof cover is controlled to be heated, and after the dustproof cover is heated, a current image containing a container is acquired through the camera. When the water outlet temperature of the water dispenser is less than or equal to the preset temperature threshold, the dustproof cover does not need to be heated.
It should be noted that the water dispenser may only be provided with any one or two of dust cover heating, fan turning on and filter heating, and the water dispenser may also be provided with dust cover heating, fan turning on, filter heating and the like, and the specific content is not limited herein.
In some embodiments, acquiring the current image containing the container may include: detecting the current light intensity of the environment where the water dispenser is located; if the current light intensity is smaller than a preset intensity threshold value, controlling a preset light supplement lamp to be started; and after the light supplement lamp is turned on, acquiring a current image containing the container.
Because the quality of the current image can be affected when the light intensity of the environment is weak, in order to effectively detect the clear current image, the light intensity can be enhanced to reduce the influence on image acquisition. Specifically, an LED light source may be disposed on the water dispenser as a fill-in light, for example, as shown in fig. 7, the camera and the fill-in light (i.e., the light source in fig. 7) may be installed obliquely above the water outlet of the water dispenser, or, for example, as shown in fig. 8, the camera and the fill-in light (i.e., the light source in fig. 8) may be installed in the middle of the water receiving area of the water dispenser in parallel, near the water outlet, and in the same direction. The effect of light filling lamp is the illumination condition of reinforcing water receiving area for it is more controllable, thereby improves the quality that the camera gathered the image. When the water dispenser is used for discharging water, the current light intensity of the environment where the water dispenser is located can be detected through the light sensor, whether the current light intensity is smaller than a preset intensity threshold value or not is judged, the preset intensity threshold value can be flexibly set according to actual needs, and under the condition that the current light intensity is larger than or equal to the preset intensity threshold value, clear images can be collected by the camera. If the current light intensity is smaller than the preset intensity threshold value, the current light of the environment where the water dispenser is located is relatively weak, the preset light supplement lamp can be controlled to be turned on at the moment, and after the light supplement lamp is turned on, the current image containing the container is collected through the camera. If the current light intensity is greater than or equal to the preset intensity threshold value, the light supplement lamp does not need to be started.
In some embodiments, after controlling the water outlet of the water dispenser and acquiring the current image containing the container, the water dispenser control method may further include: judging whether the container moves or not or whether foreign matters enter the container or not according to the current image; when the container moves or foreign matters enter the container, the water dispenser is controlled to stop discharging water; extracting from the current image a water surface boundary generated based on the vessel forming tension with the water includes: when there is no movement of the container or no foreign object entering the container, a water surface boundary generated based on tension formed by the container and water is extracted from the current image.
In the process of water outlet of the water dispenser, after the current image containing the container is acquired, whether the container moves or not can be judged according to the current image, for example, when the container is judged to shake or move from the lower part of the water outlet of the water dispenser by identifying through an identification model based on one or more frames of current images or by pixel ratio equivalence between different frames of images, the container moves. When the container moves, the water dispenser can be controlled to stop water outlet in order to avoid the situation that the container is easy to pour due to shaking or the water resource is wasted due to the fact that the container is moved away from the lower part of the water outlet of the water dispenser.
And judging whether foreign matters enter the container or not according to the current image, wherein the foreign matters can comprise mosquitoes, insects, leaves and the like, for example, when the container is judged to have mosquitoes falling into the container based on one or more frames of the current image through identification by an identification model or through pixel ratio equality between different frames of images, the water dispenser can be controlled to stop water outlet at the moment in order to avoid that a user drinks unclean water. It should be noted that, whether the container moves or not and whether foreign matter enters the container or not may be detected at the same time, or only whether the container moves or not may be detected, or only whether foreign matter enters the container or not may be detected, and the specific content is not limited herein.
When there is no movement of the container or no foreign object entering the container, a water level boundary generated based on the container forming tension with water may be extracted from the current image.
In some embodiments, the water surface detection method may further include: when the water surface boundary is not detected, outputting prompt information of manual water discharging; or when the water surface boundary is not detected, acquiring the volume of the container and the water outlet rate of the water dispenser; determining the water outlet time according to the capacity of the container and the water outlet rate of the water dispenser; controlling the water outlet of the water dispenser according to the water outlet time.
In order to improve the flexibility of controlling the water dispenser, when the water surface boundary cannot be accurately detected in the acquired container image due to the occurrence of an abnormal condition, the prompt information of manual water discharging can be output so as to remind a user to control the water dispenser to discharge water by clicking or pressing a preset water discharging button on the water dispenser, and control the water dispenser to stop discharging water by clicking or pressing a preset water stopping button on the water dispenser. The water discharging key and the water stopping key can be the same physical key or virtual key, the water discharging key and the water stopping key can also be independent physical keys or virtual keys respectively, the setting positions, colors, sizes or icons and the like of the water discharging key and the water stopping key can be flexibly set according to actual needs, and the specific content is not limited at this position.
Wherein, the mode of the prompt message of the manual drainage of output can include: outputting prompt information of manual water drainage through voice broadcasting at a voice module preset in the water dispenser, or displaying the prompt information of the manual water drainage in a display screen preset in the water dispenser, or prompting the manual water drainage through flashing of an indicator lamp of the manual water drainage and the like; and so on. Therefore, when the abnormal detection condition occurs and water cannot be discharged, a user can be timely reminded to manually control the water dispenser to discharge water, and the trouble that the user mistakenly regards the damage of the water dispenser to carry out maintenance is avoided.
Or when the water surface boundary is not detected, receiving the volume of the container input by a user, or detecting the volume corresponding to the position of the highest scale mark in the container to obtain the volume of the container and obtain the water outlet rate of the water dispenser, determining the water outlet time according to the volume of the container and the water outlet rate of the water dispenser, starting a timer to time when the water dispenser starts to outlet water, and controlling the water dispenser to stop water outlet when the water outlet time reaches.
It should be noted that the water dispenser can judge whether the container has been placed to the delivery port below, and when the container had not been placed to the delivery port below, even detect preset gesture, can not go out water yet, avoided going out water under the condition of no container, and lead to water waste and scald the user, improved the security.
The method and the device can acquire the container image of the container placed below the water outlet of the water dispenser and detect whether the container image has the port outline of the container; if the port outline of the container does not exist in the container image, prompting a user to place a hand at the port of the container around the port of the container by a preset gesture; and then, acquiring an area surrounded by the preset gesture to obtain a port profile of the container, and controlling the water dispenser to discharge water according to the port profile. According to the scheme, the port contour of the container can be accurately detected based on the gesture, so that the water outlet of the water dispenser is controlled according to the port contour, the convenience and the accuracy of port contour detection of the container are improved, and the accuracy of control over the water dispenser is improved.
Referring to fig. 9, fig. 9 is a schematic block diagram of a structure of a water dispenser provided in the embodiment of the present application.
As shown in fig. 9, the water dispenser 300 may include a processor 302, a memory 303, and a communication interface 304 connected by a system bus 301, wherein the memory 303 may include a non-volatile computer-readable storage medium and an internal memory.
The non-transitory computer readable storage medium may store a computer program. The computer program includes program instructions that, when executed, cause a processor to perform any one of the water dispenser control methods.
The processor 302 is used to provide computing and control capabilities to support the operation of the overall water dispenser.
The memory 303 provides an environment for the execution of a computer program in a non-transitory computer readable storage medium, which when executed by the processor 302, causes the processor 302 to perform any one of the water dispenser control methods.
The communication interface 304 is used for communication. Those skilled in the art will appreciate that the configuration shown in fig. 9 is merely a block diagram of a portion of the configuration associated with the present application and does not constitute a limitation of the water dispenser 300 to which the present application is applied, and that a particular water dispenser 300 may include more or less components than those shown, or combine certain components, or have a different arrangement of components.
It should be understood that the bus 301 is, for example, an I2C (Inter-Integrated Circuit) bus, the Memory 303 may be a Flash chip, a Read-Only Memory (ROM), a magnetic disk, an optical disk, a usb disk, or a removable hard disk, the Processor 302 may be a Central Processing Unit (CPU), the Processor 302 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Wherein, in some embodiments, the processor 302 is configured to run a computer program stored in the memory 303 to perform the steps of:
the method comprises the steps of obtaining a container image containing a container placed below a water outlet of the water dispenser, judging whether a port outline of the container is detected in the container image, if the port outline of the container cannot be detected in the container image, prompting a user to place a hand at a port of the container with a preset gesture, obtaining an area surrounded by the preset gesture, obtaining the port outline of the container, and controlling water outlet of the water dispenser according to the port outline.
In some embodiments, in controlling the water dispenser to dispense water according to the port profile, the processor 302 further performs: controlling the water outlet of the water dispenser, and acquiring a current image containing a container; extracting from the current image a water surface boundary generated based on the container forming tension with the water; and when the size difference between the port outline and the water surface boundary is smaller than a preset threshold value, controlling the water dispenser to stop discharging water.
In some embodiments, processor 302, in acquiring the current image containing the container, further performs: when the camera preset around the water outlet of the water dispenser collects water vapor or the water outlet temperature of the water dispenser is higher than a preset temperature threshold value, a preset fan is controlled to be started, a filter plate preset by the camera is controlled to be heated, and/or a dust cover preset by the camera is controlled to be heated; after the fan is turned on, the filter plate is heated and/or the dust cover is heated, the current image containing the container is collected through the camera.
In some embodiments, processor 302, in acquiring the current image containing the container, further performs: detecting the current light intensity of the environment where the water dispenser is located; if the current light intensity is smaller than a preset intensity threshold value, controlling a preset light supplement lamp to be started; and after the light supplement lamp is turned on, acquiring a current image containing the container.
In some embodiments, after controlling the water dispenser to dispense water and acquiring the current image containing the container, the processor 302 further performs: judging whether the container moves or not or whether foreign matters enter the container or not according to the current image; when the container moves or foreign matters enter the container, the water dispenser is controlled to stop discharging water; in extracting from the current image a water surface boundary generated based on the container forming tension with the water, the processor 302 further performs: when there is no movement of the container or no foreign object entering the container, a water surface boundary generated based on tension formed by the container and water is extracted from the current image.
In some embodiments, prior to obtaining an image of a container containing a container placed under a water outlet of a water dispenser, the processor 302 further performs: acquiring images below a water outlet of the water dispenser at intervals of preset time to obtain multi-frame images; when the difference between the multiple frames of images is smaller than a first preset threshold value, selecting one image from the multiple frames of images as a background image; collecting an initial image below a water outlet of the water dispenser; and when the difference between the initial image and the background image is greater than a second preset threshold value, determining that the container is placed below the water outlet of the water dispenser, and acquiring an image of the container containing the container.
In some embodiments, in determining whether a port profile of the container is detected from the container image, processor 302 further performs: when the container for receiving water is not placed below the water outlet of the water dispenser, acquiring an image below the water outlet of the water dispenser to obtain a background image; comparing the container image with the background image to obtain a pixel difference; judging whether the port outline of the container is detected from the container image according to the pixel difference; or carrying out port contour recognition on the container image through the trained recognition model to judge whether the port contour of the container is detected from the container image.
In some embodiments, when obtaining the port contour of the container from the area surrounded by the preset gesture, the processor 302 further performs: acquiring a semicircular area surrounded by a preset gesture; splicing the semi-circular areas into circular areas, and setting the circular areas as the port outlines of the containers; or acquiring a circular area surrounded by the preset gesture, and setting the circular area as the port outline of the container.
In some embodiments, when prompting the user to place a hand at a port of the container with a preset gesture, the processor 302 further performs: prompt information is broadcasted through voice, or image and text prompt information is displayed through a preset display screen of the water dispenser, so that a user is prompted to place a hand at a port of the container by preset gestures.
In the above embodiments, the descriptions of the embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed description of the control method of the water dispenser, and are not described herein again.
The water dispenser can acquire a container image containing a container placed below a water outlet of the water dispenser, and detect whether a port outline of the container exists in the container image; if the port outline of the container does not exist in the container image, prompting a user to place a hand at the port of the container around the port of the container by a preset gesture; and then, acquiring an area surrounded by the preset gesture to obtain a port profile of the container, and controlling the water dispenser to discharge water according to the port profile. The water dispenser can accurately detect the port contour of the container based on the gesture so as to control water outlet according to the port contour, and therefore convenience and accuracy of port contour detection of the container are improved, and accuracy of control over the water dispenser is improved.
The embodiment of the application also provides a computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, the computer program comprises program instructions, and a processor executes the program instructions to realize any one of the water dispenser control methods provided by the embodiment of the application. For example, the computer program is loaded by a processor and may perform the following steps:
the method comprises the steps of obtaining a container image containing a container placed below a water outlet of the water dispenser, judging whether a port outline of the container is detected in the container image, if the port outline of the container cannot be detected in the container image, prompting a user to place a hand at a port of the container with a preset gesture, obtaining an area surrounded by the preset gesture, obtaining the port outline of the container, and controlling water outlet of the water dispenser according to the port outline.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
The computer-readable storage medium may be an internal storage unit of the water dispenser of the foregoing embodiment, for example, a hard disk or a memory of the water dispenser. The computer readable storage medium may also be an external storage device of the water dispenser, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), etc. provided on the water dispenser.
As the computer program stored in the computer-readable storage medium can execute any one of the water dispenser control methods provided in the embodiments of the present application, the beneficial effects that can be realized by any one of the water dispenser control methods provided in the embodiments of the present application can be realized, which are detailed in the foregoing embodiments and will not be described herein again.
It is to be understood that the terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments. While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and various equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A control method of a water dispenser is characterized by comprising the following steps:
acquiring a container image of a container placed below a water outlet of the water dispenser;
determining whether a port profile of the container is detected from the container image;
if the port outline of the container cannot be detected from the container image, prompting a user to place a hand at the port of the container with a preset gesture;
acquiring an area surrounded by the preset gesture to obtain a port profile of the container;
and controlling the water outlet of the water dispenser according to the port profile.
2. The water dispenser control method of claim 1, wherein the controlling the water dispenser to dispense water according to the port profile comprises:
controlling the water dispenser to discharge water, and collecting a current image containing the container;
extracting from the current image a water surface boundary generated based on the container forming tension with water;
and when the size difference between the port outline and the water surface boundary is smaller than a preset threshold value, controlling the water dispenser to stop discharging water.
3. The water dispenser control method of claim 2, wherein the capturing a current image containing the container comprises:
when a camera preset around a water outlet of the water dispenser collects water vapor or the water outlet temperature of the water dispenser is higher than a preset temperature threshold value, a preset fan is controlled to be started, a filter preset by the camera is controlled to be heated, and/or a dust cover preset by the camera is controlled to be heated; after the fan is started, the filter plate is heated, and/or the dust cover is heated, acquiring a current image containing the container through the camera; alternatively, the first and second electrodes may be,
said acquiring a current image containing said container comprises: detecting the current light intensity of the environment where the water dispenser is located, and controlling a preset light supplement lamp to be turned on if the current light intensity is smaller than a preset intensity threshold value; and after the light supplement lamp is turned on, acquiring a current image containing the container.
4. The water dispenser control method of claim 2, wherein after controlling the water dispenser to discharge water and collecting the current image containing the container, the water dispenser control method further comprises:
judging whether the container moves or not or whether foreign matters enter the container or not according to the current image;
when the container moves or foreign matters enter the container, controlling the water dispenser to stop discharging water;
the extracting from the current image a water surface boundary generated based on the container forming tension with water comprises:
extracting a water level boundary generated based on the container forming tension with water from the current image when there is no movement of the container or no foreign object entering into the container.
5. The water dispenser control method of claim 1, wherein prior to obtaining the container image containing the container placed under the water outlet of the water dispenser, the water dispenser control method further comprises:
acquiring images below a water outlet of the water dispenser at preset intervals to obtain a plurality of frames of images;
when the difference between the multi-frame images is smaller than a first preset threshold value, selecting one image from the multi-frame images as a background image;
collecting an initial image below a water outlet of the water dispenser;
and when the difference between the initial image and the background image is larger than a second preset threshold value, determining that the container is placed below a water outlet of the water dispenser, and acquiring a container image containing the container.
6. The water dispenser control method of claim 1, wherein the determining whether the port profile of the container is detected from the container image comprises:
when the container for receiving water is not placed below the water outlet of the water dispenser, acquiring an image below the water outlet of the water dispenser to obtain a background image;
comparing the container image with the background image to obtain a pixel difference;
judging whether a port outline of the container is detected from the container image according to the pixel difference; alternatively, the first and second electrodes may be,
and carrying out port contour identification on the container image through the trained identification model so as to judge whether the port contour of the container is detected from the container image.
7. The water dispenser control method according to any one of claims 1 to 6, wherein the obtaining the area surrounded by the preset gesture to obtain the port profile of the container comprises:
acquiring a semicircular area surrounded by the preset gesture;
splicing the semicircular areas into circular areas according to the semi-circular areas, and setting the circular areas as the port outlines of the containers; alternatively, the first and second electrodes may be,
and acquiring a circular area surrounded by the preset gesture, and setting the circular area as the port outline of the container.
8. The water dispenser control method according to any one of claims 1 to 6, wherein the prompting the user to place a hand at a port of the container with a preset gesture comprises:
prompt information is broadcasted through voice, or image and text prompt information is displayed through a preset display screen of the water dispenser, so that a user is prompted to place a hand at a port of the container by preset gestures.
9. A water dispenser, characterized in that the water dispenser comprises a processor and a memory, wherein the memory stores a computer program, and the processor executes the water dispenser control method according to any one of claims 1 to 8 when calling the computer program in the memory.
10. A computer-readable storage medium for storing a computer program which is loaded by a processor to execute the water dispenser control method according to any one of claims 1 to 8.
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