WO2016183631A1 - Système et procédé de distribution d'une substance - Google Patents

Système et procédé de distribution d'une substance Download PDF

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Publication number
WO2016183631A1
WO2016183631A1 PCT/AU2016/050379 AU2016050379W WO2016183631A1 WO 2016183631 A1 WO2016183631 A1 WO 2016183631A1 AU 2016050379 W AU2016050379 W AU 2016050379W WO 2016183631 A1 WO2016183631 A1 WO 2016183631A1
Authority
WO
WIPO (PCT)
Prior art keywords
receptacle
substance
dispensing
arrangement
image
Prior art date
Application number
PCT/AU2016/050379
Other languages
English (en)
Inventor
Peter Charles Birrell
Original Assignee
Avalon Green Energy Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2015901817A external-priority patent/AU2015901817A0/en
Application filed by Avalon Green Energy Pty Ltd filed Critical Avalon Green Energy Pty Ltd
Publication of WO2016183631A1 publication Critical patent/WO2016183631A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B67D1/1247—Means for detecting the presence or absence of liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/0878—Safety, warning or controlling devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0004—Industrial image inspection
    • G06T7/0006—Industrial image inspection using a design-rule based approach
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/60—Analysis of geometric attributes
    • G06T7/62—Analysis of geometric attributes of area, perimeter, diameter or volume
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B67D2001/1259—Fluid level control devices
    • B67D2001/1263—Fluid level control devices the level being detected electrically
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10024—Color image

Definitions

  • the system comprises a processing arrangement that is configured to: carry out an analysis of an initial image; and control a dispensing arrangement based on the analysis of the initial image such that the dispensing arrangement dispenses an amount of the substance into a receptacle.
  • the processing arrangement is arranged to carry out analysis of at least one subsequent image (and in an embodiment further subsequent images) and to control the dispensing arrangement based on the analysis of the at least one subsequent image.
  • the image processing is arranged to detect images relating to a surface or meniscus of a substance being dispensed and determine whether this indicates that a "full level" in the receptacle has been reached.
  • a plurality of images are processed in "real time" as substance is being dispensed in the container, to monitor whether the surface or meniscus of the substance has reached a "full level".
  • the images are electronic images.
  • the analysis of the initial electronic image comprises examining the image to detect the presence of a receptacle.
  • the dispensing arrangement is arranged to commence dispensing of the substance into the receptacle.
  • An advantage of an embodiment of the system is that the processing arrangements ability to analyze the electronic images allows the system to dispense substances (be it a liquid or otherwise) into a broad range of different size receptacles. For example, in a situation where the system is used to dispense drinking fluids (such as alcohol) drinking containers ranging from paper cups through to beer glasses can be accommodated by the system. In an embodiment, this is facilitated by the images being processed to essentially detect the level of the substance or meniscus of the substance relative to the receptacle. In an embodiment, the image processing is arranged to detect the level of the substance of meniscus of the substance relative to a part of the receptacle, in an embodiment the receptacle lip.
  • the analysis of the initial electronic image comprises examining an image storage arrangement for a reference image of the
  • the reference image depicts the receptacle with the predetermined amount of the substance.
  • An advantage of this embodiment of the system is that it can be easily and quickly calibrated to dispense the appropriate amount of the substance into the receptacle, which is facilitated by the use of the reference image depicting the receptacle with the correct amount of the substance. It is the image storage arrangement that allows a collection of different reference images, each of which depicts a different receptacle with the appropriate amount of the substance.
  • the image storage arrangement could contain a reference image of a wine glass with the correct amount of wine in it, while another reference image in the image storage
  • the ability to be easily and quickly calibrated is facilitated by allowing the processing arrangement to access an electronic reference image of each receptacle with the correct amount of the substance.
  • the processing arrangement is arranged to process at least one subsequent image of the receptacle and the reference image of the receptacle to control the dispensing arrangement.
  • the advantage of using the at least one subsequent image of the receptacle is that it effectively allows real-time monitoring of the receptacle as it is being filled with the substance. By comparing each of the subsequent images to the reference image the processing arrangement can allow the substance to continue to be dispensed into the receptacle until such time as the subsequent image
  • the processing arrangement is further configured to process a signal from a load cell and control the dispensing arrangement such that it dispenses the predetermined amount of the substance into the
  • the processing arrangement to process the load cell signal is that it provides a failsafe mechanism against overfilling (or indeed under-filling) in the event that the camera providing the various images is obscured.
  • the load cell would typically be positioned under a substance storage container and provides a signal that corresponds to the weight of the substance storage container.
  • the weight of the container is reduced and this reduction in weight corresponds to a change in the signal from the load sensor.
  • the processing arrangement is configured to communicate, via a data communication network, with a computing device that is remote to the system, wherein the processing arrangement and the computing device
  • the computing device can initiate dispensing of the predetermined amount of the substance into the receptacle.
  • the remote computing device can be a smart phone for a suitable application installed. Any person with a smart phone and the relevant application installed can simply initiate the dispensing of the substance (which could be a drinking fluid) using the smart phone application. This has the potential to eliminate the need for a third party to attend the system to take orders and initiate the dispensing of the
  • dispensing may be automatically initiated by the
  • a reference image is generated from at least one image of the receptacle and the level to which the receptacle is to be filled is recorded on the image in a position relative to the lip of the receptacle.
  • This position having been predetermined to suit the requirements of the user. That is the "full level" can be preset, and referenced to the lip of the receptacle .
  • the method comprises the steps of:
  • the processing arrangement controlling a dispensing arrangement based on the analysis of the initial
  • the method comprises the steps of carrying out an analysis of a further electronic image, and, in embodiments, further electronic images.
  • the processing of the images is arranged to detect a surface or meniscus of the substance being dispensed and determine its position relative to a part of the receptacle, and the dispensing arrangement is arranged to dispense until a predetermined "full level" is reached, based on the analysis of the images.
  • the method comprises the step of
  • the level to which the receptacle is to be filled is recorded on an image of the receptacle in a position relative to the lip of the receptacle .
  • the step of the processing arrangement carrying out the analysis of the initial electronic image comprises the step of examining an image storage arrangement for a reference image of the receptacle, wherein the reference image depicts the receptacle with the predetermined amount of the substance.
  • processing arrangement processing at least one subsequent image of the receptacle and the reference image of the receptacle to control the dispensing arrangement.
  • processing arrangement processing at least one subsequent image of the receptacle to control the dispensing of the substance into the receptacle.
  • processing arrangement processing a signal from a load cell and controlling the dispensing arrangement such that it dispenses the predetermined amount of the substance into the receptacle.
  • processing arrangement communicating, via a data communication network, with a computing device that is remote to the system, wherein the processing arrangement and the computing device communicate such that the
  • computing device can initiate dispensing of the
  • Figure 1 provides a schematic diagram of an embodiment of a system for dispensing a substance into a receptacle
  • Figure 2 is a flow chart illustrating steps performed by a system in accordance with one embodiment
  • Figure 3 is a flow chart illustrating steps performed by a system in accordance with another embodiment.
  • a system 100 for dispensing a substance includes several elements including: a container 102; a receptacle 104; a camera 106; a data processing arrangement 108; a data interface 110; a substance outlet 114; and a light source 116.
  • a load cell 112 is also provided, but this is an optional feature and not required in some embodiments.
  • the main function of the system 100 is to dispense a substance stored in the container 102 into the receptacle 104. More specifically, the system 100 is such that it only dispenses a predefined amount of the substance into the container 102. It is envisaged that the system 100 could be employed to dispense a range of different
  • the system 100 has an immediate application to dispensing drinking fluids such as alcohol and soft drinks into different drinking vessels.
  • the system 100 could be used to dispense powdered substances such as washing powder or edible substances such as grains and nuts.
  • system 100 will be described in the context of dispensing alcoholic beverages such as wine and beer, but by no means does this imply that the system 100 is restricted to dispensing fluid substances such as alcohol.
  • the container 102 has to be filled with the required beverages.
  • the container 102 is essentially a storage reservoir of the beverages and so it would be filled with the required beverages such as beer and wine, or it may be self-filling, such as a cold water reservoir or a hot water heater/reservoir.
  • the container 102 may have separate storage compartments (not shown in the figures) each of which contains a different beverage; for example, one of the storage containers has wine and another of the storage containers has beer.
  • the container 102 also has an outlet 114 from which the beverages held within the container 102 egresses the container 102 to be dispensed into the receptacle 104.
  • the system 100 has a suitable pump for causing the beverages in the container 102 to egress from the outlet 114. While the following description of the system 100 describes the container 102 operating with a pump it is envisaged that in an alternative embodiment of the system 100 the container 102 does not operate with a pump and instead any beverage in the container 102 is dispensed using a gravity based feed system, or mains water pressure feed system.
  • a person places an empty receptacle 104 (which in the case of beverages would typically be a drinking glass) under the outlet 114.
  • the data processing arrangement 108 provides a user interface (which is typically in the form of a touch screen display providing several user functions) that allows the person to select the appropriate beverage and to initiate the dispensing of the beverage (substance) into the receptacle 104.
  • the person would first select their desired beverage (beer or wine) by selecting the appropriate button on the user interface of the data processing arrangement 108.
  • the person proceeds to select the fill button on the user interface of the data processing arrangement 108.
  • the data processing arrangement 108 captures an initial electronic image of the receptacle 104 that was placed under the outlet 114.
  • the data processing arrangement 108 is electrically connected to the camera 106.
  • the camera 106 is in the form of a relatively inexpensive CCD pinhole camera.
  • the camera 106 is continually running such that the camera is always generating the images (a video stream) .
  • the data processing arrangement 108 is constantly
  • beverage to be dispensed For example, if it is determine that as a result of processing the initial electronic image that the receptacle 104 contains a logo such as Coca Cola then Coca Cola would be selected and dispensed into the receptacle 104. Alternatively, if the receptacle 104 contains a Fanta logo then Fanta could be automatically selected and dispensed into the receptacle 104. This functionality of the system 100 is not limited to
  • the system 100 determines that the receptacle is a beer glass then beer would be dispensed. On the other hand, if it was determined that the
  • receptacle 104 was a wine glass then wine would be
  • Another alternative for selecting the beverage is the concept of having a code such as a bar code printed in the receptacle 104, which would be analysed to
  • the system 100 can include a proximity sensor which operates to inform the data
  • the data processing arrangement 108 can cause the camera 106 to capture an image of the receptacle 104 and process that image. If as a consequence of processing the image the data processing arrangement determines that it is indeed a receptacle 104 and not some other non-receptacle object, the data processing arrangement 108 can initiate the dispensing of the beverage into the receptacle 104.
  • One embodiment of the system includes a memory which stores electronic images depicting receptacles, as reference images. These reference images are used to determine how a receptacle in a "full state" would look. This embodiment is described directly below.
  • a further embodiment of the system constantly monitors images of the receptacle to determine a position of a surface level of the substance or a meniscus of the substance relative to the receptacle and determines when a "full level" has been reached based on the image
  • the data processing arrangement 108 carries out an analysis of the initial electronic image.
  • the analysis of the initial electronic image involves examining an image storage arrangement (not shown in the figures) for a reference image that
  • the image storage arrangement is in the form of permanent electronic data memory contained in the data processing arrangement 108.
  • the electronic storage memory is in the form of an SSD memory card.
  • the reference image corresponds to the initial electronic image in that the initial electronic image depicts the receptacle 104 in an empty state while the reference image depicts the same receptacle 104 in a full state (that is, full of the selected beverage) . It is possible to quickly and easily add new references images to the image storage arrangement by simply taking a photo of the required receptacle in the fill state and uploading that photo into the image storage arrangement.
  • the image storage arrangement can contain
  • the data processing arrangement 108 has to be able to select the correct reference image. To do this the data
  • processing arrangement 108 assess the circumference and high of the receptacle 104 in the initial electronic image and using those dimensions examines the image storage arrangement for reference images that contain a receptacle of the same dimensions.
  • the data processing arrangement 108 activates the pump mechanism (not shown in the figures) of the container 102 such that the required beverage is dispensed into the receptacle 104 via the outlet 114. More specifically, to initiate the pump mechanism of the container 102 that data processing arrangement 108 sends the appropriate electronic signal to the pump mechanism via the data interface 110.
  • the data processing arrangement 108 will continue to allow the beverage to be dispensed from the container 102 and into the receptacle 104 until such time as the receptacle 104 is filled with the required amount of the beverage.
  • the data processing arrangement 108 turns off the pump mechanism of the container 102 so that the beverage ceases to be dispensed from the outlet 114. To do this the data processing arrangement 108 stops sending the previously described signal to the pump mechanism via the data interface 110.
  • container 102 stops receiving the signal from the data processing arrangement 108 the pump stops operating, which in turn stops the beverage from being dispensed via the outlet 114. To ensure that the data processing arrangement 108 stops sending the signal to the pump mechanism at the
  • the data processing arrangement 108 is arranged to monitor the level of the beverage in the receptacle 104 as it is being dispensed from the outlet 114. This is in effect real-time monitoring of the level of the beverage in the receptacle 104 as it is being dispensed into the receptacle 104 from the outlet 114. To do this the data processing arrangement 108 receives a continuous feed of subsequent images from the camera 106. The subsequent images depict the level of the beverage in the receptacle 104 as it is being filled with the beverage via the outlet 114 of the container.
  • the data processing arrangement 108 For each subsequent image that the data processing arrangement 108 receives from the camera 106, the data processing arrangement 108 compares the subsequent image to the previously obtained reference image (which depicts the receptacle 104 in the full state) and if a particular subsequent image matches the reference image the data processing arrangement 108 turns the pumping mechanism of the container 102 off as previously described to thereby cease dispensing of the beverages .
  • the typical way the data processing arrangement 108 uses the subsequent images to determine whether one of them matches the reference image is by assessing the level of the beverage meniscus in the receptacle 104. More
  • the data processing arrangement 108 can examine the reference image (which depicts the receptacle 104 in the full state) to calculate a distance from the top of the receptacle 104 to the meniscus level of the beverage contained therein. Using this distance the data processing arrangement 108 can calculate the distance from the top of the receptacle 104 to the meniscus level for each of the subsequent images. As more of the beverage is dispensed into the receptacle 104 each of the subsequent images will represent a rising meniscus and as such eventually one of the subsequent images will depict the meniscus at a level that corresponds to the meniscus level depicted in the reference image.
  • the light 116 aids by projecting light on the opening of the receptacle 104 and the meniscus.
  • the system 100 is based on the data processing arrangement 108 analysing electronic images from the camera 106, it is possible that the camera's view of the receptacle 104 may become obscured. When this happens it will not be possible for the data processing arrangement 108 to process the subsequent images in a meaningful way to detect the meniscus level as previously described.
  • the system 100 includes a load cell 112 that is located under the container 102. The load cell 112
  • the signal from the load cell is sent to the data
  • the data processing arrangement 108 is such that it can determine an approximate amount of the beverage that has been dispensed from the container 102 by processing the signal from the load cell 112.
  • the data processing arrangement 108 will generally only act on the signal from the load cell 112 if the camera 106 is obstructed and cannot capture adequate subsequent images of the
  • the system 100 can be operated by the previously described user interface of the data processing arrangement 108, but it can also be operated via other means. More specifically, it is envisaged that a remote form of operation can be performed. This for example could occur by having a suitable application installed in a smart phone (not shown in the figures) and that application would essentially replicate the previously described user interface provided by the data processing arrangement 108.
  • the smart phone can communicate with the system 100 via Bluetooth and the application would allow the smart phone owner to initiate the dispensing of the beverage from the container 102 into the receptacle 104.
  • the light source 116 can take on different forms in different embodiments of the system 100.
  • the light source 116 can include a plurality of separate sources, which project light on the receptacle 104 from different angles. The advantage of projecting light on the receptacle 104 from different angles is that it enables the camera 106 to capture images of the
  • receptacle 104 in a manner that highlights a contrast in the edge (the drinking opening) of the receptacle 104. This is particularly important for improving the system' s 100 ability to detect and analyse the receptacle 104.
  • the camera 106 is infrared sensitive so that it can accurately capture and analyse images of the receptacle 104 in low light environments.
  • the light source 116 would be such that it would emit infrared light.
  • the data processing arrangement 108 being able to process the images from the camera 106 is that it can also detect an interruption to the flow of the substance from the outlet 114, which may occur as a result of the substance in the container 102 being depleted.
  • the data processing arrangement 108 can carry out a range of different action in response to detecting an interruption to the flow of the substance from the outlet 114. For example, the data processing arrangement to switch to a different container 102 or sound an audio/visual alarm to prompt a user of the system 100 to refill the container 102 with more of the substance.
  • the data processing arrangement 108 instead of comparing images to a reference image (as described above) , can use alternative techniques for determining when a sufficient amount of the beverage has been dispensed into the
  • the data processing arrangement 108 may process the subsequent images to determine where the meniscus or surface of the beverage is in relation to a part of the receptacle 104 e.g. the receptacle lip. When the meniscus or surface is at a required distance from the top of the receptacle 104 the data processing arrangement 108 can cause the beverage to cease being dispensed from the container 102 as discussed previously. In this embodiment the data processing
  • arrangement 108 is not comparing any subsequent images to a reference image. This embodiment does not require reference images.
  • images are processed to determine a reference part of the receptacle/container, such as the receptacle lip.
  • a further reference part of the container may then be identified as a "full level” (the level that the substance being poured into the receptacle should reach) .
  • images are analysed until the full level is achieved. Pouring is then stopped.
  • the images are also processed to determine when a container is placed underneath the outlet 114, and then the dispenser automatically commences dispensing. See Figure 3 flow chart which illustrates the high level steps carried out by the system of this embodiment. A more detailed description of the steps carried out by the system and data processing arrangement 108 for this embodiment now follows:

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Geometry (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

La présente invention concerne un système et un procédé permettant de distribuer une substance, telle qu'un fluide buvable. Le système comprend une caméra qui est conçue pour obtenir des images et un processeur conçu pour analyser les images. Sur la base de l'analyse d'images, le processeur est conçu pour commander l'agencement de distribution pour distribuer une quantité d'une substance, telle qu'une boisson, dans un réceptacle. Dans un mode de réalisation, le traitement d'image est conçu pour détecter des images relatives à une surface ou un ménisque d'une substance distribuée et déterminer si ceci indique qu'un "niveau plein" dans le réceptacle a été atteint. Lorsque le niveau plein est atteint, la distribution est arrêtée.
PCT/AU2016/050379 2015-05-19 2016-05-19 Système et procédé de distribution d'une substance WO2016183631A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AU2015901817 2015-05-19
AU2015901817A AU2015901817A0 (en) 2015-05-19 A system and method for dispensing a substance
AU2015901932A AU2015901932A0 (en) 2015-05-26 A system and method for dispensing a substance
AU2015901932 2015-05-26
AU2015902729 2015-07-10
AU2015902729A AU2015902729A0 (en) 2015-07-10 A system and method for dispensing a substance

Publications (1)

Publication Number Publication Date
WO2016183631A1 true WO2016183631A1 (fr) 2016-11-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2016/050379 WO2016183631A1 (fr) 2015-05-19 2016-05-19 Système et procédé de distribution d'une substance

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WO (1) WO2016183631A1 (fr)

Cited By (5)

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WO2019007800A1 (fr) 2017-07-07 2019-01-10 I-Meds Healthcare Dispositif distributeur de produits non purement gazeux et procédé de contrôle de distribution de tels produits
WO2019158563A1 (fr) 2018-02-13 2019-08-22 Carlsberg Breweries A/S Système de distribution de boisson comprenant une acquisition de données au point de vente
CN114224174A (zh) * 2021-11-25 2022-03-25 广东纯米电器科技有限公司 净饮机自动停水的方法、装置、计算机设备和存储介质
WO2022107062A1 (fr) * 2020-11-23 2022-05-27 Blupura S.R.L. Distributeur de boisson à intelligence artificielle
CN115279707A (zh) * 2020-01-08 2022-11-01 Sgd股份有限公司 包括对分配的处理物质的量进行光学检查的处理玻璃容器的方法及相关处理设施

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US20100155415A1 (en) * 2008-01-21 2010-06-24 Whirlpool Corporation Select fill sensor system for refrigerator dispensers
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US20030062095A1 (en) * 1999-10-18 2003-04-03 Chris Berghoff Automatic portion control system using strain gauge technology
US20080209709A1 (en) * 2001-10-19 2008-09-04 Monogen, Inc. Container uncapping mechanism and method
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019007800A1 (fr) 2017-07-07 2019-01-10 I-Meds Healthcare Dispositif distributeur de produits non purement gazeux et procédé de contrôle de distribution de tels produits
FR3068600A1 (fr) * 2017-07-07 2019-01-11 I-Meds Healthcare Dispositif distributeur de produits non purement gazeux et procede de controle de distribution de tels produits
WO2019158563A1 (fr) 2018-02-13 2019-08-22 Carlsberg Breweries A/S Système de distribution de boisson comprenant une acquisition de données au point de vente
CN115279707A (zh) * 2020-01-08 2022-11-01 Sgd股份有限公司 包括对分配的处理物质的量进行光学检查的处理玻璃容器的方法及相关处理设施
WO2022107062A1 (fr) * 2020-11-23 2022-05-27 Blupura S.R.L. Distributeur de boisson à intelligence artificielle
CN114224174A (zh) * 2021-11-25 2022-03-25 广东纯米电器科技有限公司 净饮机自动停水的方法、装置、计算机设备和存储介质

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