GB2583546A

GB2583546A - Smart beverage dispenser system and method

Info

Publication number: GB2583546A
Application number: GB1911607.8A
Authority: GB
Inventors: Llywellyn Green Adam; Baile Darron
Original assignee: Boiling Tap Co Ltd
Current assignee: Boiling Tap Company Ltd
Priority date: 2019-05-01
Filing date: 2019-08-14
Publication date: 2020-11-04
Also published as: GB201906113D0; GB201911607D0

Abstract

The system has a dispenser unit comprising a dispensing head 30 for dispensing liquid into the cup 10, a support 42, wherein the support 42 has a weight sensor 32 and a controller. The controller compares the weight of the cup 10 measured by the weight sensor 32 to an expected weight of the cup when empty to determine a weight offset and to control the amount of liquid dispensed from the dispensing head 30 based on the weight offset. Weighing may allow the controller to determine whether the cup is empty or not. The cup may have a communication tag, barcode or QR code, which may inter alia store the weight of the cup when empty. It may also store information related to previous beverages dispensed into the cup, e.g. their density.

Description

SMART BEVERAGE DISPENSER SYSTEM AND METHOD

Field of the Invention

The present invention relates to beverage dispensing systems and methods for dispensing 5 beverages into a receptacle.

Background

Beverage dispensers for dispensing a variety of different liquids (including water, hot and cold drinks, carbonated beverages and alcohol) are well known.

Generally, beverage dispenser systems comprise a dispenser unit and a separate receptacle, such as a cup or bottle. The use of reusable receptacles is increasingly popular due to environmental concerns. Many beverage dispenser units also have an interactive display unit (e.g. touch screen), wherein the user can select the type of beverage to be dispensed.

hi some beverage dispensers the amount of liquid dispensed is manually controlled by the user, for example by pushing a button to start and stop the flow from the dispenser head. This allows receptacles of different sizes and capacities to he used with the dispenser, but relies on the user to prevent any overflow. Alternatively, it is also known to provide automated or semi-automated dispenser units, wherein when activated the dispenser nozzle outputs a predetermined volume of liquid.

Recent advances in smart technology have led to a surge in smart enabled devices and appliances, including intelligent beverage dispensers. It is known to provide a cup or bottle comprising a tag or chip which can communicate with the dispenser will (e.g. via NFC, REID, Wi-Fi, Bluetooth® etc.). The smart tag can transmit information to the dispenser such as the number of pre-paid refills remaining or properties of the receptacle.

Examples of known smart beverage dispensing systems and methods are described in 30 US7845375 and US7617850.

In some smart beverage dispensing systems the receptacle tag communicates the size or maximum capacity of the receptacle to the dispenser unit. The dispenser unit therefore outputs a predetermined amount of the selected beverage equal to the maximum capacity of the receptacle. However, if the user wants to simply top up their beverage, or have a partial refill, they will be required to manually stop the dispensing process in order to prevent the receptacle overflowing.

Similarly, it is quite common for the user to add their own flavourings (e.g. fruit or protein powders) before dispensing water or other liquids into the receptacle. This also requires the 10 user to manually stop the dispensing process in order to prevent the receptacle overflowing.

There is therefore a need for an improved smart beverage dispensing system and method which reduces the risk of the receptacle overflowing.

There is also a need for an improved smart beverage dispensing system and method which precisely controls the dispensing process to ensure that the beverages dispensed consistently meet quality standards.

Summary

In a first aspect the invention provides, a smart beverage dispensing system for dispensing a beverage into a receptacle, comprising: a dispenser unit comprising: a dispensing head for dispensing liquid into the receptacle; a support for receiving the receptacle, wherein the support comprises a weight sensor; a controller operably connected to the weight sensor and the dispensing head, wherein the controller is configured to: i) compare the weight of the receptacle measured by the weight sensor to an expected weight of the receptacle when empty to determine a weight offset; ii) control the amount of liquid dispensed from the dispensing head based on the weight offset.

Advantageously, the present invention weighs the receptacle before dispensing any liquid. This allows the controller to determine whether the receptacle is empty, or whether it already contains liquid or other material (such as ice, fruit or flavourings). The controller controls the volume of liquid to be dispensed into the receptacle to account for any material already present in the receptacle. The controller therefore ensures that the receptacle does not overflow.

In the prior art, any liquid or other material already contained in the receptacle will cause the receptacle to overflow, unless the user intervenes, as the dispenser assumes that the 10 receptacle is empty and dispenses an amount of liquid equal to the maximum capacity of the receptacle.

Optionally the system comprises a receptacle.

The controller may be configured to receive and/or retrieve information regarding the receptacle.

The information regarding the receptacle, such as the expected weight of the receptacle when empty, may be determined (or received by the controller) in a number of different ways.

Optionally the dispenser system, or the dispenser unit comprises a programmable memory. The programmable memory may form part of the controller.

The dispenser unit may be configured to be used with receptacles of a given weight and 25 capacity, thus the controller may retrieve the expected weight of the receptacle when empty from the programmable memory.

Optionally the dispenser unit may be configured to be used with a plurality of receptacles. For example, the receptacles may be available in different sizes (e.g. small, medium and 30 large).

The expected weight of the receptacle when empty (and other properties of the receptacle) may be determined based on a user input. For example, the user may be required to select the size of the receptacle (e.g. small, medium or large). The controller may retrieve the expected weight of the selected receptacle when empty from the programmable memory.

Optionally, the dispenser unit may comprise an optical reader. The optical reader may be 5 attached to (or provided in) the support. The optical reader may comprise an imaging device configured to capture an image of the optical identifier.

The optical reader may be operably connected to (or in communication with) the controller.

The receptacle may comprise an optical identifier, such as a visual marker,barcode or OR code. The optical reader may be provided on the base of the receptacle.

The optical identifier may indicate the size or type of the receptacle, the weight of the receptacle when empty and/or the maximum capacity of the receptacle.

When the receptacle is placed on the support the optical reader may scan or capture an image of the optical identifier and transmit data representative of the receptacle to the controller. For example, the optical reader may scan the optical identifier on the receptacle and transmit data representative of the size or type of the receptacle to the controller. The controller may then retrieve the expected weight of the receptacle when empty and the maximum capacity of the receptacle from the programmable memory.

Data representative of the receptacle could be defined as data indicative of one or more properties of the receptacle.

The receptacle may comprise a communication tag configured to store and transmit data. The receptacle may be configured to transmit data representative of the receptacle to the controller.

Optionally, the dispenser unit may comprise a communication unit configured to receive data from the communication tag when the receptacle is positioned on the support. The communication unit may form part of, or operably be connected to, the controller.

Optionally, the communication unit may be configured to receive data from the optical reader.

Optionally, the communication tag on the receptacle stores the weight of the receptacle when empty and/or the maximum capacity of the receptacle. This information may be transmitted to the communication unit when the receptacle is brought into proximity (e.g. placed on the support).

I() In some embodiments, the communication tag on the receptacle may transmit an identification code (e.g. unique number or model number) to the communication unit. The controller may then retrieve the weight of the receptacle when empty and/or the maximum capacity of the receptacle from the programmable memory.

It will be appreciated that the dispenser unit may be configured to be used with both receptacles comprising communication tags and receptacles without communication tags.

For example, when a receptacle is placed on the support the communication unit may determine whether the receptacle comprises a communication tag. If no communication tag 20 is detected the optical reader may scan for an optical identifier, or the dispenser unit may prompt the user to input information regarding the receptacle as described above.

Optionally the weight sensor may be attached to the support, or integral to the support.

The controller may send instructions to the dispensing head to start and stop the flow of liquid.

Optionally the controller may be configured to instruct the dispensing head to turn off after a predetermined amount of time has elapsed. Thus, the controller may control the amount of 30 liquid being dispensed using time based flow rate calculations (or volumetric flow rate calculations).

The dispensing head may comprise at least one nozzle and at least one valve.

The dispenser unit may comprise at least one sensor configured to measure properties of the liquid flowing through the dispenser unit or dispensing head.

The dispensing head may be configured to output liquid at a fixed flow rate. Optionally, the dispenser unit may comprise a sensor configured to monitor the output flow rate from the dispensing head. The sensor is preferably operably connected to the controller.

The sensor (or the controller based on feedback from the sensor) may he configured to adjust the flow rate of liquid output from the dispensing head to ensure that the correct volume of liquid is dispensed. Optionally the sensor is a flow meter.

The controller may he configured to control or adjust one or more of: temperature; pressure; 15 carbonisation; viscosity; and/or concentration of the liquid dispensed from the dispensing head. The controller may control or adjust the properties of the liquid based on feedback received from the one or more sensors.

By selling ready mixed beverages in bottles. cans or other receptacles, beverage companies 20 can ensure that their products are consistent and meet product standards. However, the manufacture and sale of single use receptacles (particularly those made of plastic) is not environmentally friendly and is subject to increasing legislation and taxes.

hi comparison, beverages output by dispensing units at the point of sale (such as 'soda 25 fountains') into reusable receptacles are often not consistent and do not meet the same quality standards. For example, the beverage might be too warm, not fizzy enough, or too diluted if the flavour syrup is running low. All of these factors affect the taste of the beverage.

The dispenser unit of the present invention may control the dispensing unit more precisely, 30 by measuring various properties of the liquid and making adjustments if required to ensure that the beverages output meet the required standards.

The controller may be configured to convert the weight offset into a volume offset representative of the volume of material in the receptacle.

The controller may be configured to overestimate the volume offset to ensure that the receptacle is not overfilled.

To convert the weight offset into a volume offset the controller may be configured to divide the weight offset by a predetermined density (i.e. predetermined volumetric mass density).

Optionally, the predetermined density may be equal to the density of ice, or of water (1 g/m1).

Optionally the predetermined density may be equal to the average density of liquid output from the dispenser.

Optionally. the predetermined density may be equal to the density of the last beverage to be dispensed into the receptacle. Thus, the controller may assume that the receptacle contains the last beverage to he dispensed into the receptacle.

Details of the last beverage to be dispensed into the receptacle may be stored on the communication lag. The density of this beverage may be retrieved from the communication tag, or the programmable memory.

The controller may be configured to determine, based on data received from the 25 communication tag or optical reader or user input, a predetermined volume of liquid to he dispensed into the receptacle.

The predetermined volume of liquid may be adjusted based on the weight offset.

Optionally, the controller may he configured to determine the volume of liquid to he dispensed by subtracting the volume offset from the predetermined volume of liquid.

The predetermined volume of liquid may be equal to the maximum capacity of the receptacle. The maximum capacity may be defined as the maximum volume of liquid that can be safely received in the receptacle.

hi other embodiments the predetermined volume may be determined based on the maximum capacity of the receptacle. For example, the user may be able to select whether they want the receptacle to be half full (i.e. the predetermined volume may be half the maximum capacity). Optionally Ihe controller may be configured to allow a margin of error, thus the predetermined volume may be equal to the maximum capacity of the receptacle minus a I() given volume.

The controller may determine that the receptacle is empty if the weight offset does not exceed a given threshold. The threshold may be equal to zero plus a given tolerance. In one example, the threshold may he 5 g or I() 2.

If the controller determines that the receptacle is empty, then it may then be configured to dispense a volume of liquid equal to the predetermined volume. As discussed above, the predetermined volume may he the maximum capacity of the receptacle.

Optionally the controller may be configured to prevent liquid being dispensed from the dispensing head if the weight offset exceeds a given threshold. Thus, the step of controlling the dispensing of liquid may include preventing liquid from being dispensed.

Optionally the dispenser unit may comprise a display unit. The display unit may be operably 25 connected (directly or wirelessly) to the controller.

The dispenser unit may be configured to receive a user input. For example, the display unit may comprise an interactive user interface such as a touch screen or a plurality of buttons.

The display unit may present the user with a number of options such as: size of receptacle, type of beverage to be dispensed, flavour of beverage, temperature of beverage etc. The user may input their selection via the touch screen or via a plurality of buttons provided on the display unit.

Optionally, if the weight offset exceeds a given threshold then the controller may be 5 configured to instruct the display unit to display a message instructing the user to empty the receptacle.

Optionally if the weight offset exceeds a given threshold then the controller may be configured to instruct the display unit to display a message asking the user if they would like 10 to empty the receptacle.

The weigh( sensor may be configured to detect if the receptacle has been removed from the support and replaced.

The controller may be configured to verify that, if the receptacle has been removed and replaced, it is still the same receptacle. For example that the controller may verify that the communication lag or optical identifier details are the same.

If the receptacle has been removed and replaced on the dispenser unit, the weight sensor 20 may be configured to re-measure the weight of the receptacle.

The controller may he configured to compare the weight of the receptacle re-measured by the weight sensor to an expected weight of the receptacle when empty to determine a second weigh( offset.

The controller may then control the amount of liquid dispensed from the dispensing head based on the re-measured (or second) weight offset. For example, if the controller determines that the receptacle is now empty (i.e. the re-measured weight offset is less than a given threshold), an amount of liquid equal to the maximum capacity of the receptacle may he dispensed.

response to the user selecting 'no' to the message on the display unit and/or the weight sensor measuring no change to the weight of the receptacle, the controller may continue to control the amount of liquid dispensed from the dispensing head based on the weight offset (as discussed above).

Optionally, the weight sensor may he configured to weigh the receptacle after the liquid has been dispensed. The weight sensor may verify whether or not the correct amount of liquid has been dispensed.

I() The receptacle may be a cup, glass, bottle or other drinking container. Preferably, the receptacle is a reusable drinking bottle.

Optionally the communication tag may be attached to, or embedded in, the base, side or top of the receptacle.

The communication unit may be configured to transmit data to the communication tag on the receptacle.

For example, the dispenser unit may transmit purchase information to the communication 20 tag including (but not limited to) one or more of: date and time beverage dispensed into receptacle, location of dispenser unit, type or volume of beverage dispensed.

Optionally, the communication tag may be configured to store nutritional information relating to the beverages dispensed into the receptacle.

The nutritional information for the beverage being dispensed may he transmitted to the communication tag from the communication unit.

The nutritional information for each beverage that can he dispensed from the dispenser unit 30 may he stored in the programmable memory.

The nutritional information may include one or more of: amount of sugar; amount of salt; amount of protein; amount of fat; mineral or vitamin content; volume of water; calorific content (kcal).

Optionally the display unit may be configured to display one or more of: the nutritional information for the beverage which is being dispensed; the nutritional information for the beverages which can be dispensed (e.g. before the user selects their beverage); and/or the nutritional information for the beverages which have been dispensed into the receptacle over a given time period.

For example, the communication tag may store the nutritional information for beverages dispensed into the receptacle for a given time period, such as the last 24 hours, or last week, or month etc. The display unit may be configured to display this data, such as the amount of sugar, or water, or calories consumed by the user over this time period.

Optionally. the communication tag on the receptacle may be configured to store the cleaning history of the receptacle. For example, the communication tag may store the date (and/or time) that the receptacle was last cleaned or sterilized. This information may he transmitted to the communication unit.

If the controller determines that the receptacle has not been cleaned within a given period of time, or within a given period of time from when a beverage was last dispensed into the receptacle, it may prevent liquid from being dispensed from the dispensing head until it receives confirmation that the receptacle has been cleaned. This may ensure that acceptable standards of hygiene are maintained with a reusable receptacle.

Optionally, the dispenser unit comprises a light source. Preferably, the light source may configured to emit ultra-violet (UV) light. In some embodiments, the light source may be configured to emit UV light configured to at least partially sterilize the receptacle and/or the 30 dispensing head.

The communication tag may be configured to transmit, and optionally receive, data via one or more of: NFC, RF, Wi-H, Bluetooth®, 30 or 4G.

The weight sensor may be a load cell, or a strain gauge.

In order to more accurately determine the volume offset, if the controller determines that the weight offset exceeds a given threshold, it may instruct the display unit to ask the user what is in the receptacle. For example, the user may be presented with a number of options to be selected, such as water, ice, fruit, protein powder, other liquid, etc. The options may be I() determined based on information stored in the communication tag (e.g. consumed beverage history).

The programmable memory in the dispenser unit may comprise a database of different substances and their average densities. The controller may receive the user's input and 15 retrieve the density of the substance from the programmable memory. The controller can then determine the volume offset as discussed above.

Optionally, the programmable memory may he configured to store the nutritional information of different substances (not necessarily substances which are dispensed by the dispenser unit). The controller may be configured to adjust the nutritional information of the beverage to account for the substance already in the receptacle. The adjusted nutritional information may he transmitted to the communication tag and/or the display unit.

Optionally the weight sensor may monitor the weight of the receptacle during the dispensing 25 process. If the weight reaches a predetermined threshold the controller may be configured to stop the dispensing process (e.g. turn off the dispensing head).

The communication tag on the receptacle may be configured to communicate with a mobile computing device, such as a smart phone. Optionally, the mobile computing device may 30 form part of the system.

Optionally the mobile computing device communicates with the display unit and/or the communication unit. Thus, the user may input their selections (such as type of beverage, whether or not to empty the receptacle, etc.) via the mobile computing device, rather than the display unit.

The communication tag may he linked to a user profile. Thus, the communication tag may be configured to store personal information regarding the user, such as: name; favourite beverage selection; contact details; payment details; passwords.

Optionally, when the receptacle is brought into proximity with the dispenser unit the communication tag transmits information to the communication unit which allows the display unit to be personalised. For example, the display unit may greet the user by the name registered to the receptacle. It may also personalise the beverage selection options based on their selected favourite drinks, or the user's purchase history.

Optionally, the communication unit communicates directly with the display unit. In other embodiments, the controller sends the instructions to the display unit.

When the user purchases the receptacle they may be prompted to scan a QR code to 20 download a mobile app. They may register their details on the app and link the app to the communication lag (e.g. by entering a code or tapping the phone to the tag).

Optionally, the user may be required to enter a password or other authentication code before a beverage can be dispensed. They may have to enter the password or authentication code 25 on the display unit, or on the mobile computing device linked to the receptacle.

The dispenser unit may comprise a biometric reader. The user may be required to enter their fingerprint (or other biometric data) in order to authorise the dispenser unit to dispense a beverage into the receptacle. The biometric data will have to match the authorised data stored 30 on the communication tag, programmable memory or the mobile app linked to receptacle.

hi a second aspect of the invention, there is provided a method of dispensing a beverage into a receptacle, comprising: receiving a receptacle on a support provided on the dispenser unit; measuring the weight of the receptacle using a weight sensor; determining a weight offset by comparing the weight of the receptacle measured by the weight sensor to an expected weight of the receptacle when empty; controlling the amount of liquid dispensed from the dispensing head based on the weight offset.

It will be appreciated that the method of the second aspect of the invention can be carried out using the system of the first aspect of the invention. Thus, the second aspect of the invention incorporates all of the examples and embodiments of the firs( aspect of the invention, and vice versa.

The controller may be configured to receive information regarding the receptacle. The method may comprise receiving an input regarding one or more properties of the receptacle.

The information regarding the receptacle, such as expected weight of the receptacle when empty, may be determined (or retrieved by the controller) in a number of different ways.

Optionally the dispenser unit comprises a programmable memory. The programmable memory may form part of the controller.

The dispenser unit may be configured to be used with receptacles of a known weight and 25 capacity, thus the method may comprise retrieving information representative of the receptacle, such as the expected weight of the receptacle when empty, from the programmable memory.

Optionally, the dispenser unit may he configured to be used with a plurality of receptacles. 30 For example, the receptacles may he available in different sizes (e.g. small, medium and large).

The method may comprise receiving a user input and determining the expected weight of the receptacle when empty based on the user input. For example, the user may be prompted to select the size of the receptacle (e.g. small, medium or large). The controller may retrieve the expected weight of the selected size of receptacle when empty from the programmable memory.

Optionally, the method may comprise scanning or capturing an image of an optical identifier provided on the receptacle using an optical reader.

The optical identifier may indicate the size or type of the receptacle, the weight of the receptacle when empty and/or the maximum capacity of the receptacle. The method may include transmitting information representative of the receptacle from the optical reader to the controller.

The receptacle may comprise a communication tag configured to store and transmit data.

The method may include transmitting data representative of the receptacle from the communication tag to a communication unit provided in the dispenser unit. The communication unit may form part of the controller, or be operably connected to the 20 controller.

Optionally, the communication unit may he configured to receive data from the optical reader.

The method may comprise transmitting the weight of the receptacle when empty and/or the maximum capacity of the receptacle from the communication tag to the communication unit.

In some embodiments, the method comprises transmitting an identification number associated with the receptacle from the communication tag to the communication unit. The method may comprise retrieving the weight of the receptacle when empty and/or the maximum capacity of the receptacle from the programmable memory.

It will he appreciated that the dispenser unit may he configured to he used both with receptacles comprising communication tags, and those without communication tags.

For example, the method may comprise receiving a receptacle on the support of the dispenser unit and detecting using the communication unit whether the receptacle comprises a communication tag. If no communication tag is detected the optical reader may scan for an optical identifier, or the dispenser unit may prompt the user to input information regarding the receptacle as described above. I()

Optionally, the step of controlling the dispensing of liquid from the dispensing head comprises turning off the dispensing head after a predetermined amount of time has elapsed. It will be appreciated that this is carried out by the controller, rather than the user.

The method may therefore comprise determining the maximum amount of liquid to be dispensed without overflowing the receptacle using time based flow rate calculations.

Optionally, the method may comprise controlling or adjusting one or more of: temperature; pressure; carbonisation; viscosity; and/or concentration of the liquid dispensed from the 20 dispensing head based on feedback received from one or more sensors.

The method may further comprise measuring the flow rate of liquid through the dispensing head using at sensor. Optionally the sensor is a flow meter.

The method may further comprise adjusting the flow rate or the amount of time the dispenser is turned on, based on feedback from the sensor, to ensure that the correct amount of liquid is dispensed.

Optionally, the method comprises converting the weight offset into a volume offset by 30 dividing the weight offset by a predetermined density.

Optionally the predetermined density may be equal to the density of ice, or of water (1 g/m1).

Optionally, the predetermined density may be equal to the average density of liquid output from the dispenser.

Optionally, the predetermined density may be equal to the density of the last beverage to be dispensed into the receptacle. Thus, the controller may assume that the receptacle contains the last beverage to be dispensed into the receptacle.

Details of the last beverage to be dispensed into the receptacle may be stored on the 10 communication tag. The density of this beverage may be retrieved from the communication tag, or the programmable memory.

The method may comprise determining the volume of liquid to be dispensed by subtracting the volume offset from a predetermined volume of liquid, and controlling the dispensing 15 head to dispense the volume of liquid.

The predetermined volume of liquid may be determined based on data received from the communication tag, the user input or the optical reader.

Optionally if the weight offset exceeds a given threshold, the method comprises displaying a message on a display unit instructing the user to empty the receptacle. The method may comprise preventing any liquid from being dispensed if the weight offset exceeds a given threshold.

The threshold may be equal to zero plus a given tolerance. In one example, the threshold may be 5 g or 10 g.

Optionally if the weight offset exceeds a given threshold, the method comprises displaying a message on a display unit asking the user whether they wish to empty the receptacle before 30 continuing.

The method may comprise detecting, using the weight sensor, if the receptacle has been removed from the support and replaced. If the receptacle has been removed the method may comprise verifying the communication tag or optical identifier details to check the receptacle has not been changed.

The method may comprise re-measuring the weight of the receptacle using the weight sensor (if it has been removed and replaced). The method may comprise determining a second weight offset by comparing the re-measured weight of the receptacle to an expected weight of the receptacle when empty.

Optionally, if the weight offset (based on the original or re-measured weight) is less than a given threshold, the method may comprise dispensing a predetermined volume of liquid into the receptacle.

Optionally, the predetermined volume of liquid is equal to, or based on, the maximum capacity of the receptacle.

The maximum capacity of the receptacle may he transmitted from the communication tag to the communication unit or determined based on information transmitted by the 20 communication lag.

Alternatively, the maximum capacity of the receptacle may he transmitted from the optical reader to the communication unit or determined based on information transmitted by the optical reader.

Optionally, the method comprises verifying, using the weight sensor,whether the correct amount of liquid has been dispensed into the receptacle.

If the weight of the receptacle after the beverage has been dispensed is less than expected, 30 the method may comprise dispensing an additional amount of liquid, for example until the receptacle reaches an expected weight.

The method may comprise displaying on the display unit one or more of: nutritional information for the beverage which is being dispensed; nutritional information for the beverages which can be dispensed (e.g. before the user selects their beverage); and/or nutritional information for the beverages which have been dispensed into the receptacle over a given time period.

The method may comprise storing on the communication tag nutritional information for the beverages dispensed into the receptacle over a given time period, such as the last 24 hours, or last week, or month etc. Optionally, the method comprises transmitting information regarding the cleaning history of the receptacle from the communication tag to the communication unit. The method may also comprise preventing liquid from being dispensed from the dispensing head if it is determined that the receptacle has not been cleaned within a given period of time, or if the receptacle has not been cleaned within a given period of time from when a beverage was last dispensed into the receptacle.

If the weight offset exceeds a given threshold, the method may comprise displaying a message on a display unit asking the user what substance is in the receptacle, receiving an 20 input from the user, retrieving the density of the substance from the programmable memory and determining the volume offset representative of the substance in the receptacle.

The step of receiving an input from the user may be cried out by the display unit, or a mobile computing device in communication with the communication unit.

Optionally, the programmable memory may be configured to store the nutritional information of different substances (not necessarily substances which are dispensed by the dispenser unit). The method may comprise adjusting the nutritional information relating to the beverage to account for the substance already in the receptacle. The method may comprise transmitting the adjusted nutritional information to the communication tag and/or the display unit.

The method may comprise monitoring the weight of the receptacle during the dispensing process and turning off the dispensing head if the weight reaches a predetermined threshold.

The method may comprise requesting authorisation from the user before dispensing liquid 5 from the dispensing head. For example, the method may request the user to enter a password or other authentication code, or enter their biometric data via a biometric reader.

The method may comprise verifying that the authorisation is correct by comparing it to data stored on the communication tag, in the programmable memory, or on a mobile computing 10 device in communication with the dispenser unit.

The method may include entering a power saving mode if the dispenser unit is inactive for a given period of time. Inactive may be defined as no communication between the communication unit and a communication tag, and/or no communication between the 15 controller and one or more of: the dispensing head; communication unit; and weight sensor.

Many variations in the way the invention may be performed will present themselves to those skilled in the art upon reading the following description.

The description which follows should not be regarded as limiting but rather, as an illustration only of one manner of performing the invention. Where possible any element or component should he taken as including any or all equivalents thereof whether or not specifically mentioned.

Brief Description of the Drawings

Illustrative embodiments of the invention will now he described by way of example only and with reference to the accompanying drawings, in which: Figure la is a schematic diagram of a beverage dispensing system according to an 30 embodiment of the invention; Figure lb is a schematic diagram of a beverage dispensing system according to an embodiment of the invention; Figure 2 shows a front view of a beverage dispensing system according to an embodiment 5 of the invention; Figure 3 is a flowchart illustrating a method of dispensing a beverage according to an embodiment of the invention; Figure 4 is a flowchart illustrating a method of dispensing a beverage according to an embodiment of the invention; and Figure 5 is a flowchart illustrating a method of dispensing a beverage according to an embodiment of the invention.

It will be appreciated that the figures are for illustrative purposes only and features are not drawn to scale.

Figure la is a schematic diagram of a beverage dispensing system. The system comprises a 20 receptacle 10, such as a cup or a bottle, and a dispenser unit.

The receptacle 10 comprises a communication tag 12, such as an NFC tag. The communication tag 12 may be attached to the base or side wall(s) of the receptacle 10.

In order to dispense a beverage into the receptacle, a user places the receptacle 10 onto a support provided on the dispenser unit (not shown). The support comprises a weight sensor 32 configured to weigh the receptacle. The weight sensor 32 may be a strain gauge or a load cell.

In this embodiment the dispenser unit also comprises a pump 21 operably connected to the mains water supply, a filtration unit 22 and a chiller unit 23. A dispensing head 30 is connected to the chiller unit 23 and the filtration unit 22.

The dispensing head 30 in Figure 1 comprises a carbonisation unit 24, a blending valve 25, a flow meter 26, a lamp 29 and a nozzle 31. However, it will be appreciated that not all of these features are essential. For example, the dispenser unit may be configured to output hot beverages, thus a heating unit may be provided instead of, or in addition to, the chiller unit 23.

Preferably, the lamp 29 is a UV LED lamp arranged to illuminate the receptacle 10 when a beverage is being dispensed. The lamp 29 may be used to at least partially sterilise the 10 beverage, dispenser unit and/or the receptacle. The lamp 29 may he configured to turn on when a receptacle 10 is placed on the weight sensor 32.

The dispenser unit also comprises a controller 27 and a communication unit 28. In some examples the communication unit 28 may form part of the controller 27. The communication 15 unit 28 is configured to receive data from the communication tag 12 on the receptacle and, optionally, to transmit data to the communication tag 12.

The controller 27 is operably connected (e.g. directly or indirectly, via wires or wirclessly) to at least the communication unit 28, dispensing head 30 and weight sensor 32. The 20 controller 27 is configured to control the amount of liquid dispensed from the dispensing head 30 to ensure that the receptacle 10 does not overflow.

In this example the controller 27 is configured to control the amount of liquid dispensed from the dispensing head 30 using volumetric flow rate calculations. If the flow rate output from the dispensing head 30 is known (i.e. the volume of liquid dispensed per second) then the controller 27 can instruct liquid to he output from the nozzle 31 of the dispenser for a predetermined amount of time to dispense a predetermined volume of liquid.

The flow meter 26 is configured to measure the flow rate of liquid through the dispensing 30 head 30. These measurements arc communicated to the controller 27. The controller 27 may be configured to adjust the flow rate of the liquid through the dispensing head 30 and/or the amount of time the nozzle 31 is turned on, based on the feedback from the flow meter 26.

The dispenser unit may comprise additional sensors (not shown) configured to measure one or more of the temperature; pressure; carbonisation; viscosity; and/or concentration of the liquid flowing through the dispensing head 30. The sensors may provide feedback to the 5 controller 27 which ensures that the beverage being dispensed meets required standards.

In other embodiments, the flow meter 26 is not provided and the dispensing head 30 is configured to operate at a set flow rate which is assumed to be accurate.

Figure lb shows another embodiment of a beverage dispensing system according to an embodiment of the invention. Features in common between Figures la and lb have been numbered accordingly.

In Figure 1 b the communication unit is part of the controller 27 and so it is not shown as a 15 separate feature.

The receptacle 10 comprises an optical identifier 13, such as a visual marker, barcode or QR code, rather than a communication tag 12. In this example the optical identifier (or tag) 13 is provided on the base of the receptacle 10, but in other embodiments it could be provided 20 on the side wall of the receptacle 10.

An optical reader 33 is provided to scan or capture an image of the optical identifier 13 on the receptacle and transmit information regarding the receptacle 10 to the controller 27. The information may comprise the weight of the receptacle when empty and the maximum capacity of the receptacle. Alternatively, the information transmitted may allow the controller 27 to retrieve the weight of the receptacle when empty and the maximum capacity from its programmable memory. For example, the beverage dispensing system may be configured to be used with three different sizes of receptacle (e.g. small, medium and large). Each size of receptacle may he identified by a different visual marker 13 (such as a symbol or image) provided on the receptacle. The optical reader 33 may he arranged to capture an image of the visual marker 13. The optical reader 33 may transmit the image to the controller 27. The controller 27 can then identify the size of the receptacle 10 and retrieve the properties of the receptacle from a programmable memory.

Alternatively, the optical reader 33 may process the image of the visual marker 13 and 5 identify the size of the receptacle 10 (e.g. small, medium or large). The optical reader 33 may transmit the size of the receptacle 10 to the controller 27.

Figure 2 shows an example of a beverage dispensing system of the present invention with the receptacle 10 placed on the support 42. Common features between Figures la, lb and 2 10 have been numbered accordingly.

The dispenser unit has a housing 20 which encloses the internal parts of the dispenser unit (e.g. shown in Figure 1). The dispenser unit also includes a display unit 40 attached to or integral with the housing 20. The display unit 40 comprises a touch screen. In other examples, the display unit 40 may comprise a display screen and a plurality of buttons to receive user inputs.

The display unit 40 is arranged to present messages to the user and options for them to select, such as the type of beverage. The user inputs are transmitted to the controller 27.

The optical reader 33 and weight sensor 32 are provided in the support 42. It will be appreciated that the optical reader 33 could alternatively be positioned to scan or capture an image of an optical identifier provided on the side of the receptacle 10. Thus, the dispenser unit is configured to be used with receptacles that comprise a communication tag 12 and those that comprise an optical identifier 13 (see Figure 5).

In some embodiments the communication tag 12 is configured to store nutritional data relating to the beverages dispensed into the receptacle. The nutritional data can be displayed on the display unit 40.

hi the example shown in Figure 2 the dispenser unit also comprises a biometric reader 44 provided on the housing 20. This is preferably a fingerprint reader. The biometric reader 44 is operably connected to the controller 27.

hi order to dispense a beverage into the receptacle, a user may be required to scan their fingerprint on the reader 44 to provide authentication for the transaction. If the scanned fingerprint 44 matches an authorised fingerprint stored on the communication tag, or in the dispenser's programmable memory, the controller 27 will authorise the beverage to be dispensed.

Optionally, the dispenser unit includes means for receiving a payment from the user (not shown).

Figure 3 illustrates an example of how the beverage dispensing system in Figures 1 to 2 can 15 be used to dispense a beverage.

Step 101, the receptacle 10 is placed on the support 42 provided on the dispenser unit.

Step 102, the communication tag 12 on the receptacle transmits data to the communication 20 unit 28 of the dispenser. This may be carried out using NFC, RFID, Bluetooth®, Wi-Fi, or other short range communication methods. This data may include the weight of the receptacle when empty and the maximum capacity of the receptacle.

Alternatively, the controller 27 (or the dispenser unit) may comprise a programmable memory. The programmable memory may he programmed to store information including the weight when empty and maximum capacity of different receptacles. The communication tag may transmit an ID code (or a model number) to the communication unit which allows the controller to retrieve the specifications of the receptacle from the programmable memory.

Step 103, the weight sensor 32 measures the weight of the receptacle 10 and transmits this measured weight to the communication unit 28 or the controller 27.

It will be appreciated that step 102 can occur concurrently with step 103. Alternatively, step 103 can he carried out before step 102.

Step 104, with this data the controller 27 can determine whether the receptacle 10 is empty or not. In other words, the controller 27 compares an expected weight of the receptacle when empty with the measured weight of the receptacle to determine a weight offset. The expected weight of the receptacle when empty may be determined based on data received from the communication lag.

If the receptacle 10 is empty when placed on the weight sensor 32, then the offset should he zero (within an acceptable tolerance).

Step 105, the controller determines the volume of liquid that can be dispensed without overfilling the receptacle. If the weight offset is less than a given threshold, the controller may instruct the dispensing head to dispense a predetermined volume of liquid into the receptacle. The predetermined volume may be equal to the maximum capacity of the receptacle, determined from data transmitted by the communication tag.

Step 105 may include determining a volume offset which is representative of the estimated 20 volume of liquid contained in the receptacle. The volume offset may be calculated by dividing the weight offset by a predetermined density. The predetermined density may be equal to the density of ice, or of water (1 g/ml).

For example, if the controller 27 determines that the measured weight of the receptacle is 50g heavier than the expected weight of the receptacle when empty, the weight offset is 50g. The controller may assume that the receptacle contains water. Thus, the volume offset of liquid in the receptacle is 50 nil. The controller 27 will therefore reduce the maximum capacity of the receptacle by 50 ml to determine the volume of liquid to be dispensed.

Step 106, the controller 27 controls the dispensing head 30 to dispense the determined amount of liquid into the receptacle 10.

Step 106 may comprise instructing the dispensing head to turn off after a predetermined amount of time has elapsed. Optionally, step 106 may include monitoring the feedback from the flow meter 26 and adjusting the predetermined amount of time or the flow rate of liquid in the dispensing head, if required.

It will he appreciated that the method can comprise additional steps.

For example, after step 106 the weight sensor 32 may re-measure the weight of the receptacle. If this the weight of the receptacle is less than an expected weight the controller 10 27 may instruct the dispensing head 30 to dispense an additional amount of liquid.

Figure 4 is a flow chart of another embodiment of a method of dispensing a beverage according to the present invention. Steps 101 to 104 are the same as in Figure 3.

In Figure 4, if the weight offset exceeds a given threshold the receptacle is determined not to be empty. The threshold may be zero (within an acceptable tolerance).

If the receptacle is not empty, the method comprises step 107 of displaying a message to ask the user whether they wish to empty the receptacle before continuing. This is carried out on 20 display unit 40 (see Figure 2).

At step 108 the weight sensor 32 detects whether the receptacle 10 is removed from the stand 41. If it is removed and then replaced, the weight sensor 32 re-measures the weight of the receptacle 10 and the controller 27 checks the details on the communication tag 12 to check 25 it is still the same receptacle (i.e. steps 102 and 103 are repeated).

If the receptacle has been changed then the expected weight of the receptacle when empty and the predetermined volume of liquid to be dispensed may be different.

Step 104 is then repeated to determine the new weight offset.

If the user responds 'NO' in response to the message at step 107, or if the weight sensor 32 detects no change in the weight of the receptacle, then the method proceeds to steps 105 and 106 of the method in Figure 3.

If the new weight offset is less than the given threshold and thus the receptacle is now empty, the method proceeds to step 109 and the controller 27 dispenses the predetermined volume of liquid into the receptacle.

The predetermined volume of liquid may be equal to, or based on, the maximum capacity of 10 the receptacle. In some examples, the predetermined volume of liquid may he less than the maximum capacity by a set amount (e.g. 20 ml). This may allow a margin of error to ensure that the receptacle is not overfilled.

Another example of a method of dispensing a beverage according to the present invention is 15 disclosed in Figure 5. In this example the receptacle 10 does not have to comprise a communication tag 12.

The method comprises receiving the receptacle on the support (step 201). At step 202 the communication unit 28 detects whether the receptacle comprises a communication tag 12 or 20 not. If a communication tag is detected the method can proceed as described above in Figures 3 and 4.

If a communication tag is not detected then the method proceeds to step 203. At step 203 the optical reader 33 scans the receptacle to see if an optical identifier is provided. If an optical 25 identifier is scanned (or captured) then the optical reader 33 transmits information regarding the receptacle to the controller 27 (or the communication unit 28).

At step 203 if the optical reader 33 does not capture (or detect) an optical identifier on the receptacle then the display unit 40 may prompt the user to adjust the position of the 30 receptacle, or to use a receptacle comprising the required communication tag 12 or optical identifier 13.

Additionally or alternatively, at step 203 if the optical reader 33 does not capture (or detect) an optical identifier on the receptacle then the display may prompt the user to input information regarding the receptacle. The information may include for example: size of the receptacle (e.g. small, medium or large), an identification code, model number, weight of the receptacle when empty and/or maximum capacity of the receptacle.

The method then proceeds to weigh the receptacle (step 204) using the weight sensor 32, and to determine the weight offset between the measured weight and the expected weight of the receptacle when empty (step 205).

If the receptacle is empty then the weight offset should be zero, within given tolerances.

At step 206 the method comprises determining the amount (or volume) of liquid that can be dispensed without overfilling the receptacle. This is as described at step 105 in relation to 15 Figure 3.

For example, if the weight offset is not zero the dispenser unit may receive a user input confirming what substance is in the receptacle (e.g. water, ice, fruit or additive). The controller may convert the weight offset into a volume offset by dividing the weight offset by the known or estimated density of this substance. The controller may comprise a database listing the average densities of popular substances.

The volume offset may be subtracted from the maximum capacity of the receptacle. The maximum capacity of the receptacle may be transmitted by the optical reader 33 to the 25 controller 27, or retrieved by the controller 27 from the programmable memory based on information sent by the optical reader 33.

The controller 27 then controls the dispensing head 30 to dispense the determined amount of liquid into the receptacle. The controller 27 receives feedback from the flow meter 26, 30 weight sensor 32 and other sensors to ensure that the correct amount and quality of liquid is dispensed.

It will be appreciated that steps 107 to 109 of the method in Figure 4 could equally be used in the embodiment in Figure 5 in which the optical identifier 13 may he used instead of the communication tag 12.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be capable of designing many alternative embodiments without departing from the scope of the invention as defined by the appended claims. In the claims, any reference signs placed in parentheses shall not be construed as limiting the claims. The word "comprising" and "comprises", and the like, does not exclude the presence of elements or steps other than those listed in any claim or the specification as a whole. In the present specification, "comprises" means "includes or consists of and "comprising" means "including or consisting of'. The singular reference of an element does not exclude the plural reference of such elements and vice-versa. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Claims

CLAIMS1. A smart beverage dispensing system for dispensing a beverage into a receptacle, comprising: a dispenser unit comprising: a dispensing head for dispensing liquid into the receptacle; a support for receiving the receptacle, wherein the support comprises a weight. sensor; a controller operably connected to the weight. sensor and the dispensing head, wherein the controller is configured to: i) compare the weight of the receptacle measured by the weight sensor to an expected weight of the receptacle when empty to determine a weight offset; ii) control the amount of liquid dispensed from the dispensing head based on the weight offset. 15 2. The smart beverage dispensing system according to claim 1, wherein the dispenser unit comprises: at least one sensor operably connected to the controller; wherein the controller is configured to control one or more of: temperature; 20 pressure; carbonisation; viscosity; and/or concentration of the liquid dispensed from the dispensing head, based on feedback received from the at least one sensor.3. The smart beverage dispensing system according to claim 2, wherein the at least one sensor comprises a flow meter configured to measure the flow rate of liquid through the 25 dispensing head.4. The smart beverage dispensing system according to any preceding claim, further comprising a receptacle.5. The smart beverage dispensing system according to claim 4, wherein the receptacle comprises a communication tag configured to store data and transmit data representative of the receptacle to the controller.6. The smart beverage dispensing system according to claim 4 or claim 5, wherein the receptacle comprises an optical identifier and the dispenser unit comprises an optical reader configured to scan or capture an image of the optical identifier and transmit data 5 representative of the receptacle to the controller.7. The smart beverage dispensing system according to claim 5 or claim 6, wherein the dispenser unit comprises a communication unit operably connected to the controller and configured to receive data from the communication tag and/or the optical reader when the 10 receptacle is positioned on the support.8. The smart beverage dispensing system according to claim 7, wherein the communication tag and/or the optical reader is configured to transmit data representative of the weight of the receptacle when empty and the maximum capacity of the receptacle to the communication unit.9. The smart beverage dispensing system according to claim 7 or claim 8, wherein the controller is configured to retrieve the weight of the receptacle when empty and the maximum capacity of the receptacle from a programmable memory based on the data 20 transmitted by the communication tag or the optical reader.10. The smart beverage dispensing system according to any preceding claim, wherein the controller is configured to convert the weight offset into a volume offset by dividing the weight offset by a predetermined density.11. The smart beverage dispensing system according to claim 10, wherein: the predetermined density is equal to the density of ice or water (1 gIml); or the predetermined density is equal to the average density of liquid output from the dispenser; or the predetermined density is equal to the density of the last beverage to he dispensed into the receptacle.12. The smart beverage dispensing system according to claim 10 or claim 11, wherein the controller is configured to determine the volume of liquid to he dispensed by subtracting the volume offset from a predetermined volume of liquid.13. The smart beverage dispensing system according to any preceding claim, wherein if the weight offset is less than a given threshold, the controller is configured to dispense a predetermined volume of liquid into the receptacle.14. The smart beverage dispensing system according to claim 12 or claim 13, I() wherein the predetermined volume of liquid is equal to, or based on, the maximum capacity of the receptacle.15. The smart beverage dispensing system according to any preceding claim, wherein the dispenser unit further comprises a display unit operably connected to the controller. 15 16. The smart beverage dispensing system according to claim 15, wherein the display unit comprises a touch screen and/or a plurality of buttons configured to receive user inputs.17. The smart beverage dispensing system according to claim 15 or claim 16 as they 20 depend on claim 5, wherein: the communication lag is configured to store nutritional information relating to the beverages dispensed into the receptacle; and the display unit is configured to display the nutritional information for the beverage which is being dispensed and/or the nutritional information for the beverages 25 which have been dispensed into the receptacle over a given time period.18. The smart beverage dispensing system according to any preceding claim dependent on claim 5, wherein: the communication tag is configured to store information relating to the cleaning 30 history of the receptacle; and if the controller determines that the receptacle has not been cleaned within a given period of time, or within a given period of time from when a beverage was last dispensed into the receptacle, it is configured to prevent liquid from being dispensed from the dispensing head until it receives confirmation that the receptacle has been cleaned.19. The smart beverage dispensing system according to any preceding claim, wherein the 5 dispenser unit comprises: a light source configured to emit ultra-violet (UV) light configured to at least partially sterilize the dispensing head and/or the receptacle; and/or a biometric reader.20. A method of dispensing a beverage from a dispenser unit into a receptacle, comprising: receiving the receptacle on a support provided on the dispenser unit; measuring the weight of the receptacle using a weight sensor; determining a weight offset by comparing the measured weight of the receptacle to 15 an expected weight of the receptacle when empty; controlling the amount of liquid dispensed from the dispensing head based on the weight offset.21. The method of dispensing a beverage according to claim 20, wherein controlling the 20 amount of liquid dispensed from the dispensing head comprises: controlling one or more of: temperature; pressure; carbonisation; viscosity; and/or concentration of the liquid dispensed from the dispensing head, based on feedback received from at least one sensor.22. The method of dispensing a beverage according to claim 20 or claim 21, comprising: measuring the flow rate through the dispensing head using a flow meter; and adjusting the flow rate of the liquid through dispensing head, or the amount of time that the dispensing head is turned on, based on feedback from the flow meter.23. The method of dispensing a beverage according to any of claims 20 to 22, further comprising transmitting data representative of the receptacle from a communication tag on the receptacle to the controller.24. The method of dispensing a beverage according to any of claims 20 to 23, further comprising scanning or capturing an image of an optical identifier on the receptacle using an optical reader and transmitting data representative of the receptacle from the optical 5 reader to the controller.25. The method of dispensing a beverage according to claim 23 or claim 24, wherein the dispenser unit comprises a communication unit operably connected to the controller and configured to receive data from the communication tag and/or the optical reader when the 10 receptacle is positioned on the support.26. The method of dispensing a beverage according to claim 25, comprising transmitting data representative of the weight of the receptacle when empty and the maximum capacity of the receptacle from the communication tag and/or the optical reader to the communication unit.27. The method of dispensing a beverage according to any of claims 23 to 26, comprising retrieving the weight of the receptacle when empty and the maximum capacity of the receptacle from a programmable memory based on the data transmitted by the 20 communication lag or the optical reader.28. The method of dispensing a beverage according to any of claims 20 to 27, comprising converting the weight offset into a volume offset by dividing the weight offset by a predetermined density.29. The method of dispensing a beverage according to claim 28, wherein: the predetermined density is equal to the density of ice or water (1 g/ml); or the predetermined density is equal to the average density of liquid output from the dispenser; or the predetermined density is equal to the density of the last beverage to he dispensed into the receptacle.30. The method of dispensing a beverage according to claim 28, wherein if the weight offset exceeds a given threshold, the method comprises: displaying a message on a display unit asking the user what substance is in the receptacle; receiving an input from the user; and retrieving the density of the substance from a programmable memory, wherein the density of the substance is the predetermined density.31. The method of dispensing a beverage according to any of claims 28 to 30, comprising 10 determining the volume of liquid to he dispensed by subtracting the volume offset from a predetermined volume of liquid, and controlling the dispensing head to dispense the volume of liquid.32. The method of dispensing a beverage according to any of claims 20 to 31, wherein if the 15 weight offset exceeds a given threshold, the method comprises: displaying a message on a display unit asking the user whether they wish to empty the receptacle.33. The method of dispensing a beverage according to claim 32 as it depends on claim 23 20 or 24, further comprising: detecting, using the weight sensor, if the receptacle has been removed from the support and replaced; and verifying the communication tag details or the optical identifier to check the receptacle has not been changed.34. The method of dispensing a beverage according to claim 33, further comprising re-measuring the weight of the receptacle using the weight sensor; and determining a weight offset by comparing the re-measured weigh( of the receptacle to an expected weight of the receptacle when empty.35. The method of dispensing a beverage according to any of claims 20 to 34, wherein, if the weight offset is less than a given threshold, the step of controlling the amount of liquid dispensed from the dispensing head comprises dispensing a predetermined volume of liquid.36. The method of dispensing a beverage according to claim 31 or claim 35, wherein the predetermined volume of liquid is equal to, or based on, the maximum capacity of the receptacle.37. The method of dispensing a beverage according to any of claims 20 to 36, further 10 comprising verifying, using the weight sensor, whether the correct amount of liquid has been dispensed into the receptacle.38. The method of dispensing a beverage according to any preceding claim dependent on claim 23, further comprising: transmitting information regarding the cleaning history of the receptacle from the communication tag to the controller; preventing liquid from being dispensed from the dispensing head if it is determined that the receptacle has not been cleaned within a given period of time, or within a given period of time from when a beverage was last dispensed into the receptacle, until 20 confirmation is received that the receptacle has been cleaned.39. The method of dispensing a beverage according to any preceding claim dependent on claim 23, comprising: storing nutritional information relating to the beverages dispensed into the receptacle on the communication tag; and displaying the nutritional information for the beverage which is being dispensed and/or displaying the nutritional information for the beverages which have been dispensed into the receptacle over a given time period.40. The method of dispensing a beverage according to any of claims 20 to 39, comprising requesting authorisation from the user before dispensing liquid from the dispensing head.