Residue pressing method and device of intelligent coffee machine, electronic equipment and storage medium

Abstract

The invention relates to a residue pressing method and device of an intelligent coffee machine, electronic equipment and a storage medium. The method comprises the following steps: in a coffee extraction stage, controlling a first piston and / or a second piston to extrude coffee powder according to first pressure information to form coffee powder; under the condition that extraction is completed, the first piston and / or the second piston are / is controlled to conduct secondary extrusion treatment on the coffee powder cake obtained after extraction according to second pressure information, and a coffee ground cake is generated; the second pressure in the second pressure information is greater than or equal to the first pressure in the first pressure information; the thickness of the coffee ground cake is smaller than that of the extracted coffee powder cake; and under the condition that the coffee ground cake meets the preset discharge condition, the coffee ground cake is controlled to be discharged from an outlet of the brewing cylinder. According to the technical scheme provided by the invention, loose coffee grounds can be prevented from being broken, adhered to the inner wall of the brewing cylinder or blocking the grounds discharging channel in the discharging process, the manual cleaning frequency is greatly reduced, and the self-cleaning capability of the equipment is improved.

Description

Technical Field

[0001] This application relates to the field of beverage preparation equipment control technology, and in particular to a method, apparatus, electronic device and storage medium for pressing coffee dregs in an intelligent coffee machine. Background Technology

[0002] Smart coffee machines are becoming increasingly popular due to their ease of use and consistent quality. The traditional workflow of a smart coffee machine typically includes: grinding coffee beans, tamping, brewing, and emptying the coffee grounds into the grounds container.

[0003] In existing technological solutions, the design focus of coffee machines is generally on optimizing the coffee extraction process, such as precisely controlling water temperature, water pressure, and extraction time, to improve the taste and quality of the coffee beverage. However, the handling of the coffee grounds after extraction, especially the grounds removal process, generally lacks sophisticated intelligent management, leading to a series of derivative problems.

[0004] Coffee grounds after extraction typically have a high moisture content, resulting in a soft, loose, and sticky texture. If directly fed into the brewing process, the wet grounds easily adhere to the surfaces of the portafilter, brewing nozzle, and other components, making them difficult to remove completely. This not only leads to grounds accumulation, affecting the flavor purity of subsequent coffee brewing, but also increases the cleaning burden due to long-term retention of dried grounds, potentially causing mechanical jamming or malfunction. Furthermore, once the high-moisture grounds fall into the grounds container, they create a warm, humid, and organic-rich microenvironment within the enclosed space. If not cleaned promptly, this microenvironment easily breeds mold and produces an unpleasant sour odor, severely impacting the user experience and hygiene. Summary of the Invention

[0005] This application provides a method, apparatus, electronic device, and storage medium for pressing coffee dregs in a smart coffee machine, aiming to at least address issues in related technologies such as how to improve the coffee machine's dreg removal efficiency, reduce coffee machine contamination, and enhance the user experience. The technical solution of this application is as follows: According to a first aspect of the embodiments of this application, a method for pressing coffee dregs in a smart coffee machine is provided, comprising: During the coffee extraction stage, the first piston and / or the second piston are controlled to compress the coffee powder with the first pressure information to form a coffee cake; Once extraction is complete, the first piston and / or the second piston are controlled to perform a secondary extrusion process on the extracted coffee powder cake using the second pressure information to generate a coffee grounds cake; the second pressure in the second pressure information is greater than or equal to the first pressure in the first pressure information; the thickness of the coffee grounds cake is less than the thickness of the extracted coffee powder cake; When the coffee grounds meet the preset discharge conditions, the coffee grounds are controlled to be discharged from the outlet of the brewing tank.

[0006] According to a second aspect of the embodiments of this application, a pressing device for a smart coffee machine is provided, comprising: A coffee puck extrusion module is used to control the first piston and / or the second piston to extrude coffee powder with a first pressure information during the coffee extraction stage to form a coffee puck. The coffee grounds generation module is used to control the first piston and / or the second piston to perform a secondary extrusion process on the extracted coffee powder cake with the second pressure information after extraction is completed, so as to generate coffee grounds. The coffee grounds discharge module is used to control the coffee grounds to be discharged from the outlet of the brewing tank when the coffee grounds meet the preset discharge conditions.

[0007] According to a third aspect of the embodiments of this application, an electronic device is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to implement the method as described in any one of the first aspects above.

[0008] According to a fourth aspect of the present application, a computer-readable storage medium is provided, wherein when the instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to perform any of the methods described in the first aspect of the present application.

[0009] According to a fifth aspect of the embodiments of this application, a computer program product is provided, including computer instructions that, when executed by a processor, cause a computer to perform the method described in any one of the first aspects of the embodiments of this application.

[0010] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application.

[0011] The technical solutions provided by the embodiments of this application bring at least the following beneficial effects: By making the coffee grounds cake thinner than the extracted coffee powder cake, the coffee grounds cake structure can be made more compact, preventing loose and damp coffee grounds from breaking and adhering to the inner wall of the brewing tank or clogging the grounds discharge channel during the discharge process, greatly reducing the frequency of manual cleaning and improving the self-cleaning ability of the equipment. By controlling the first piston and / or the second piston to compress the coffee powder with the first pressure information during the coffee extraction stage to form a coffee cake, the extraction pressure is not sacrificed in order to facilitate the removal of the residue, thus ensuring the stability of the extraction quality. Once extraction is complete, the first piston and / or the second piston are controlled to perform a secondary extrusion process on the extracted coffee powder cake with the second pressure information to generate coffee grounds cake, making the inner wall of the brewing tank cleaner after the grounds are discharged, greatly reducing the cleaning burden on users. The first and second pressure information can be dynamically adjusted based on the amount of coffee powder, improving the system's adaptability and intelligence. By generating coffee grounds cakes, the coffee machine avoids clogging pipes and valves during the churn process, reducing the failure rate caused by poor churn and improving the long-term operational stability of the equipment. At the same time, this churn method reduces contamination and wear on components such as pumps and piston seals, helping to extend the service life of core components.

[0012] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0013] To more clearly illustrate the technical solutions and advantages in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a flowchart illustrating a method for pressing coffee dregs in a smart coffee machine according to an exemplary embodiment.

[0015] Figure 2 This is a structural diagram of a brewing tank according to an exemplary embodiment.

[0016] Figure 3 This is a flowchart illustrating a second pressure information determination method according to an exemplary embodiment.

[0017] Figure 4 This is a flowchart illustrating a method for correcting predicted slag information according to an exemplary embodiment.

[0018] Figure 5 This is a schematic diagram of a coffee machine pressing mechanism according to an exemplary embodiment.

[0019] Figure 6 This is a block diagram of a smart coffee machine pressing device according to an exemplary embodiment.

[0020] Figure 7 This is a frame of an electronic device for pressing slag in a smart coffee machine, illustrated according to an exemplary embodiment. Figure 1 .

[0021] Figure 8 This is a frame of an electronic device for pressing slag in a smart coffee machine, illustrated according to an exemplary embodiment. Figure 2 . Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in the specification, and not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0024] Various exemplary embodiments, features, and aspects of the present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0025] The term "exemplary" as used herein means "serving as an example, embodiment, or illustration." Any embodiment illustrated herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships may exist, for example, A and / or B, which can represent: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more of a plurality, for example, including at least one of A, B, and C, which can represent including any one or more elements selected from the set consisting of A, B, and C.

[0026] Unless otherwise specified, the directions in this article should be understood as follows: the direction closer to the user is forward, and the direction farther from the user is backward.

[0027] Furthermore, to better illustrate the present invention, numerous specific details are set forth in the following detailed embodiments. Those skilled in the art will understand that the present invention can be practiced without certain specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art have not been described in detail in order to highlight the spirit of the invention.

[0028] It should be noted that the following diagram shows one possible sequence of steps, and it is not strictly necessary to follow this order. Some steps can be executed in parallel without interdependence.

[0029] Before introducing the method embodiments provided by the present invention, a brief introduction will be given on the application scenarios, related terms or nouns that may be involved in the method embodiments of the present invention, so as to facilitate the understanding of those skilled in the art.

[0030] A smart coffee machine is a modern, fully automatic coffee-making device that integrates sensing technology, automatic control, data processing, and human-computer interaction capabilities. It not only performs the basic functions of a traditional coffee machine, such as grinding, tamping, extraction, and milk frothing, but also uses built-in intelligent algorithms and sensor systems to perceive, analyze, and adaptively adjust key parameters during the brewing process in real time, thereby achieving a more stable, personalized, and convenient coffee-making experience.

[0031] Smart coffee machines can be categorized based on their structure, functional integration, automation level, and target user group. For example, there are fully-automatic smart coffee machines (desktop models), which integrate a bean hopper, grinder, brewer, and milk frothing system, completing the entire process from coffee beans to finished product with a single touch; smart capsule coffee machines; and commercial smart espresso machines. Specifically, the pressing method, apparatus, electronic device, and storage medium for a smart coffee machine described in this application can be applied to any of the aforementioned smart coffee machines, and this application does not limit its application in this regard.

[0032] Figure 1 This is a flowchart illustrating a method for pressing coffee dregs in a smart coffee machine according to an exemplary embodiment. Figure 1 As shown, it may include the following steps.

[0033] In step S101, during the coffee extraction stage, the first piston and / or the second piston are controlled to extrude the coffee powder with the first pressure information to form a coffee cake.

[0034] In the embodiments of this specification, the coffee extraction stage can refer to the core step in coffee making, namely, the process by which hot water, under pressure, penetrates the coffee puck, dissolves, and carries out flavor compounds. The first piston and the second piston can refer to two sealing components that can move independently or collaboratively within the brewing cylinder, respectively used to seal both ends of the brewing cylinder. The position and applied pressure of the first and second pistons are typically controlled by the intelligent coffee machine system. The coffee puck can refer to a cake-shaped coffee block formed by extruding coffee powder, used for coffee brewing and extraction. Coffee powder can refer to ground coffee bean particles used for brewing coffee.

[0035] In one possible implementation, during the coffee extraction stage, the weight information of the coffee powder, the grind size information, and the roasting degree information of the coffee pouch are obtained; based on the weight information, the grind size information, and the roasting degree information, the first pressure and the first duration are matched from a preset tamping parameter database; the first piston and / or the second piston are controlled to extrude the coffee powder at the first pressure and the first duration to form the coffee pouch.

[0036] In the embodiments of this specification, the powder weight information refers to the weight of the coffee powder. Coffee grind size information can refer to the particle size of the ground coffee beans, i.e., the fineness of the particles. Coffee pouch roasting information is used to characterize the degree of roasting of the coffee beans and can include three types: light roast, medium roast, or dark roast. For example, the coffee pouch roasting information can be determined based on Agtron color values. Light roast corresponds to an Agtron color value range of 61-85; medium roast corresponds to an Agtron color value range of 50-60; and dark roast corresponds to an Agtron color value range of 30-49. Alternatively, the coffee pouch roasting information can be determined based on the roasting stage / first and second crack time points. Light roast is defined as roasting ending at the early to middle stage of the first crack, with the beans dry and without oiliness; medium roast is defined as roasting ending from the end of the first crack to the beginning of the second crack, with the bean surface slightly glossy; and dark roast is defined as roasting entering or exceeding the second crack stage, with the bean surface showing obvious oiliness and a dark brown color. Alternatively, coffee puck roasting information can be determined based on density or moisture content range. Light roast: coffee powder density ≥ 0.38 g / cm³ 3 Medium roast: Coffee grounds density between 0.34 and 0.37 g / cm³ 3 Dark roast: Coffee powder density ≤ 0.33 g / cm³ 3 This application does not limit the method of obtaining information on the roasting degree of coffee powder.

[0037] The first pressure information can refer to the optimal combination of tamping parameters preset or calculated during the tamping stage. The first pressure information may include a first pressure and a first duration. Specifically, the first pressure can refer to the pressure value applied to the coffee powder during the tamping process, and the first pressure may include 20 kgf, 30 kgf, 40 kgf, and 60 kgf. This application does not limit the specific data for the first pressure. The first duration can refer to the duration for which the first piston and / or the second piston maintains the first pressure.

[0038] The first and second pistons are movably disposed within the brewing cylinder to seal both ends of the brewing cylinder. Preferably, the first and second pistons of this application can be configured as a piston with a shorter stroke and a piston with a longer stroke, with the piston with the longer stroke pressing against the other piston to form a coffee cake or coffee grounds cake.

[0039] For example, the coffee machine's grinding module grinds coffee beans into coffee powder, or pre-ground coffee powder is directly added; this application does not limit this. Furthermore, the coffee grind size information and coffee puck roast information are obtained by setting or automatically identifying the settings on the coffee machine's control panel or in the corresponding application. For instance, if the coffee puck roast information is medium roast and the grinding module's current setting is level six, the smart coffee machine system will automatically set the coffee grind size to medium-fine.

[0040] The weight of the coffee powder monitored by the weight sensor installed in the brewing tank is 18.5 grams, and this application does not limit this. Specifically, the type of weight sensor may include a strain gauge load cell, a piezoelectric sensor, a capacitive load sensor, and an electromagnetic force restoration sensor, and this application does not limit the type of weight sensor.

[0041] Furthermore, based on the combination of three sets of parameters—powder weight, coffee grind size, and coffee puck roast level—the first pressure and first duration are retrieved from the preset tamping parameter database stored in the smart coffee machine system. Specifically, as shown in Table 1 below: Specifically, a coffee powder weight of 18-19 grams, a medium-fine grind size, and a medium roast puck roast can be matched to a first pressure of 30 kgf and a first duration of 2 seconds. A coffee powder weight of 18-19 grams, a fine grind size, and a light roast puck roast can be matched to a first pressure of 40 kgf and a first duration of 2.2 seconds. A coffee powder weight of 18-19 grams, a medium-coarse grind size, and a dark roast puck roast can be matched to a first pressure of 20 kgf and a first duration of 1.8 seconds.

[0042] Table 1 Powder weight information (grams) Coffee grind size information Coffee powder roasting information First pressure (kilogram force) First duration (seconds) 18-19 medium to fine grain Medium baking 30 2.0 18-19 fine-grained light baking 40 2.2 18-19 Medium to coarse grain Dark baking 20 1.8 Based on the example above, the following parameters are used to determine the first pressure: a first pressure of 30 kgf and a first duration of 2 seconds. The intelligent coffee machine system uses this first pressure and duration to control the lower piston to compress the coffee powder in the brewing cylinder, forming a corresponding coffee puck. This application does not limit the specific values ​​mentioned above.

[0043] In one possible implementation, during the coffee extraction stage, after extrusion, a hot water boiler is further controlled to deliver hot water from a second piston to the coffee puck for brewing and extraction.

[0044] Figure 2 This is a structural diagram of a brewing tank according to an exemplary embodiment. For example... Figure 2 As shown, the brewing tank contains an upper piston and a lower piston, where the upper piston can correspond to a first piston and the lower piston can correspond to a second piston. The upper and lower pistons can move synchronously in opposite directions, or they can be configured such that only the upper piston moves while the lower piston remains stationary, or only the lower piston moves while the upper piston remains stationary. This application does not limit the piston's movement configuration. The upper and lower pistons are arranged within the brewing tank. Preferably, the stroke of the lower piston is greater than the stroke of the lower piston. The lower piston is connected to a three-way valve, the other end of which is connected to a hot water boiler and a waste discharge pipe.

[0045] For example, during the coffee extraction stage, after the smart coffee machine completes the tamping action to form a coffee puck, the brewing and extraction process is then performed. The lower piston of the brewing cylinder moves up to a preset position and, together with the upper piston, clamps and seals the coffee puck inside the brewing cylinder.

[0046] Next, the three-way valve switches to connect the hot water boiler and the lower piston, and the waste pipe is closed. The hot water boiler supplies hot water to the coffee puck in the lower piston through the three-way valve for brewing and extraction, and the extracted coffee liquid exits from the outlet of the upper piston. For example, about 5 or 8 ml of hot water at a temperature of 92°C is injected into the brewing chamber through the lower piston, immersing the coffee puck for three or five seconds to allow it to absorb water and expand. Then, the 92°C hot water from the boiler continues to be passed evenly through the coffee puck, with an extraction time of 28 seconds and a total output of 36 mL, resulting in a standard cup of espresso. During this process, soluble flavor substances are extracted, while insoluble fibers, oils, and residual water remain in the brewing tank.

[0047] After coffee extraction is complete, the hot water boiler stops working, and the pressure inside the brewing chamber is released. At this point, the original coffee puck has been converted into a soft, moist residue with a moisture content of approximately 60% and a weight of 22.3 grams, which forms the extracted coffee puck. This application does not limit the specific values ​​in the above example. Due to its high moisture content and loose structure, the extracted coffee puck is prone to breakage if discharged directly, and may contaminate and block the residue discharge channel, thus requiring subsequent secondary extrusion processing.

[0048] Figure 3 This is a flowchart illustrating a second pressure information determination method according to an exemplary embodiment. Figure 3 As shown, it includes the following steps.

[0049] In step S301, the moisture and weight of the extracted coffee pouch are monitored to determine the initial pouch moisture and initial pouch weight information. In step S303, the initial coffee cake moisture information and the initial coffee cake weight information are weighted and fused to obtain the moisture content information of the extracted coffee cake. In step S305, the moisture content information is input into the target slag pressing prediction model to obtain the predicted slag pressing information; In step S307, the coffee grind size information and coffee puck roasting degree information corresponding to the coffee powder are obtained; In step S309, the predicted slag information is adjusted based on the coffee grind size information and the coffee puck roasting degree information to generate the second pressure information.

[0050] In the embodiments of this specification, the initial coffee pouch moisture information can refer to the moisture content of the extracted coffee pouch measured by a humidity sensor inside the brewing tank, which can be expressed as a percentage to reflect its moisture level. The initial coffee pouch weight information can refer to the total weight of the extracted coffee pouch measured by a weight sensor inside the brewing tank. For example, after the coffee brewing and extraction are completed, the smart coffee machine automatically performs status monitoring of the extracted coffee pouch, and the specific monitoring process is as follows: After the coffee puck in the brewing chamber is extracted for 28 seconds, under 30 kg of pressure and 92°C of hot water, it forms a soft, wet residue. This extracted coffee puck remains inside the brewing chamber and is held in place by the lower piston.

[0051] The system collects load data in real time using a weight sensor, such as a strain gauge load cell, located at the bottom of the brewing cylinder. After deducting the empty cylinder baseline value, the intelligent coffee machine system measures the total weight of the extracted coffee pouch to be 22.1 grams, which is the initial pouch weight information.

[0052] A humidity sensor, such as a capacitive moisture sensor, installed on the upper piston end face, lower piston end, or brewing chamber side wall emits a high-frequency electric field to the coffee cake surface, and then detects the change in dielectric constant to inversely determine the moisture content. After processing by a calibration algorithm, the system obtains an average moisture content of 58.3% for the coffee cake, which is recorded as the initial coffee cake humidity information. This application does not limit the specific calculation method or value of the initial coffee cake weight information and the initial coffee cake humidity information. The second pressure information can refer to the optimal pressing parameters determined based on the initial coffee cake humidity information and the initial coffee cake weight information, used to guide the secondary pressing operation of the extracted coffee cake. Under normal circumstances, the extracted coffee cake is in a highly saturated state, and its internal pores are filled with moisture. In order to effectively break its loose and sticky physical structure, it is necessary to remove the excess liquid carried in the extracted coffee cake, thereby forming a second coffee cake with a dense structure and significantly reduced moisture content. The required mechanical compression force must be much higher than the first pressure, that is, the second pressure is greater than or equal to the first pressure. The pressure range of the second pressure in this application can be set between 60% and 90% of the piston's ultimate pressure, for example, between 70 kg and 100 kg. This application does not limit this range.

[0053] The moisture content information of the extracted coffee puck can refer to a comprehensive indicator of the total moisture content in the extracted coffee puck, which can be either absolute or relative moisture content. The target pressing prediction model can refer to a pre-trained or calibrated mathematical model or mapping relationship. Predicted pressing information can refer to the preliminary pressing parameters output by the target pressing prediction model, including predicted pressing pressure and predicted pressing time.

[0054] For example, when performing the pressing process, the intelligent coffee machine system first detects that the initial coffee cake moisture content is 58% using a humidity sensor; the initial coffee cake weight is detected as 22 grams using a weight sensor; and the weight of the coffee powder used is 18 grams. Then, the intelligent coffee machine system can perform weighted fusion processing using a preset weighted formula.

[0055] The weighting formula is: Moisture content information = α × initial slag cake moisture information + β × (initial slag cake weight information - powder weight information) / powder weight information × 100%; where α and β can be represented as weighting coefficients for moisture content information.

[0056] Substituting the data from the above example into the weighted formula, we obtain the moisture content information as follows: 0.6 × 58% + 0.4 × (22-18) / 18 × 100% = 43.7%. This moisture content information can be used to quantify the amount of moisture in the extracted coffee pouch, accurately reflecting the moisture level and dehydration difficulty of the pouch, thus providing a basis for the intelligent determination of the subsequent second pressure information. α = 0.6, β = 0.4; this application does not limit the above content.

[0057] After obtaining the moisture content information of 43.7%, the moisture content information can be input into the pre-trained target slag pressure prediction model, and then the preset slag pressure information can be output. For example, the predicted slag pressure information is 60 kgf, and the predicted slag pressure display information is 2.3 seconds. This application does not limit this.

[0058] In one possible implementation, the training steps for the target slag prediction model can be: A sample dataset is collected. The intelligent coffee machine system can perform multiple brewing and pressing operations, recording multiple sample data. The sample input features include multiple samples of coffee cake moisture content and multiple samples of coffee cake weight content. The coffee cake weight information corresponding to the moisture content is then input into the pressing training model, which outputs corresponding pressing pressure and pressing time information. The model parameters are continuously adjusted using optimization algorithms, such as gradient descent, to minimize the difference between the model's predicted values ​​and the actual second pressure information, i.e., the loss information. This process is iterated until the model learns a stable mapping relationship from the coffee cake weight information corresponding to the moisture content to the pressing pressure and pressing time information. The pressing training model that meets the preset pressing training conditions is then identified as the target pressing prediction model.

[0059] After acquiring the predicted press information, the intelligent coffee machine system obtains the characteristic parameters corresponding to the coffee powder, including coffee grind size and coffee puck roasting degree, through user-preset settings or automatic identification. Further, based on the identified or user-preset coffee grind size and coffee puck roasting degree information, it activates the adjustment strategy corresponding to the predicted press information. And according to the corresponding adjustment strategy, it adjusts the predicted press information to generate second pressure information corresponding to the extracted coffee puck.

[0060] Figure 4 This is a flowchart illustrating a method for correcting predicted slag information according to an exemplary embodiment. Figure 4 As shown, the steps include the following.

[0061] In step S401, when the coffee grind size information and coffee cake roasting information indicate that the coffee powder is in the first grinding and roasting state, the first time correction coefficient and the first pressure correction coefficient are determined from the preset correction database.

[0062] In step S402, the predicted slag pressing time information is multiplied by the first time correction coefficient to obtain the second duration; the predicted slag pressing pressure information is multiplied by the first pressure correction coefficient to obtain the second pressure.

[0063] In step S403, when the coffee grind size information and the coffee puck roasting information indicate that the coffee powder is in a second grinding and roasting state, a second time correction coefficient and a second pressure correction coefficient are determined from the preset correction database.

[0064] In step S404, the predicted slag pressing time information is multiplied by the second time correction coefficient to obtain the second duration; the predicted slag pressing pressure information is multiplied by the second pressure correction coefficient to obtain the second pressure.

[0065] In the embodiments of this specification, the preset correction database can refer to a database or lookup table that pre-stores optimization strategies corresponding to different coffee powder characteristics. The coffee density corresponding to coffee powder in the first grinding and roasting state is greater than that of coffee powder in the second grinding and roasting state; the first time correction coefficient is greater than the second time correction coefficient; and the first pressure correction coefficient is less than the second pressure correction coefficient. Coffee density can refer to the bulk density of the coffee powder. The coffee density corresponding to coffee powder in the first grinding and roasting state can characterize tightly packed particles, hard fibers, difficulty in compression, and high drainage resistance. The coffee density of coffee powder in the second grinding and roasting state can characterize loosely packed, porous particles, brittle texture, easy compression, and smooth drainage.

[0066] For example, the coffee grind size information is fine and the roast level information is light roast. Based on the fine grind size and light roast, the coffee powder is indicated to be in the first grind roast state. Further, when the system recognizes that the coffee powder is in the first grind roast state, it queries the preset correction database for the corresponding correction coefficients, which are a first time correction coefficient of 1.5 and a first pressure correction coefficient of 0.7. The formula for the second pressure information is: Second pressure = Predicted tamping pressure information × First pressure correction coefficient; Target tamping time information = Predicted tamping time information × First time correction coefficient. Setting the first pressure correction coefficient, for example, 0.7, is to prevent the surface of the extracted coffee puck from being sealed after receiving excessive pressure, thus preventing water from draining and causing blockage of the drainage channel. Setting the first time correction coefficient, for example, 1.5, is to provide sufficient drainage time to compensate for the drainage efficiency lost due to pressure reduction, ensuring sufficient time for water to drain from the coffee machine.

[0067] If the coffee grind size information is medium-coarse or coarse, and the coffee powder roasting information is dark roast, it indicates that the coffee powder is in a second grind roasting state. Then, the smart coffee machine system recognizes that the coffee powder is in this second grind roasting state and retrieves the corresponding correction coefficients from a preset correction database. These include a second pressure correction coefficient and a second time correction coefficient. For example, the second pressure correction coefficient can be 1.3; the second time correction coefficient can be 0.6.

[0068] Based on the second correction factor, the formula corresponding to the second pressure information is: Second pressure = Predicted pressing pressure information × Second pressure correction factor; Target pressing time information = Predicted pressing time information × Second time correction factor. The second pressure correction factor is set because dark roast coarse-ground coffee powder has large particles, large internal pores, and very unobstructed drainage channels, allowing water to flow quickly. Increasing the second pressure overcomes flow resistance and improves drainage efficiency. The second time correction factor is set because dark roast coarse-ground coffee powder has lower structural strength. If compressed under high pressure for a prolonged period, the already drained and brittle coffee particles will be further and excessively compressed, potentially crushing some particles and producing unnecessary ultrafine powder.

[0069] In step S103, after extraction is complete, the first piston and / or the second piston are controlled to perform a secondary extrusion process on the extracted coffee powder cake with the second pressure information to generate coffee grounds cake.

[0070] In the embodiments described in this specification, the coffee grounds cake is the final product formed after a secondary extrusion process. Its thickness is less than that of the extracted coffee powder cake, while its density and hardness are significantly higher.

[0071] In one possible implementation, during the secondary extrusion of the extracted coffee puck, the second piston is connected to the waste pipe, and wastewater is discharged from the waste pipe.

[0072] During the extrusion of the extracted coffee puck, the three-way valve switches to connect with the waste pipe and the lower piston, and the hot water boiler is shut off. When the lower piston performs a second extrusion of the extracted coffee puck in the brewing chamber, the wastewater from the extracted coffee puck is discharged through the three-way valve to the waste pipe. Correspondingly, the upper piston can also be connected to the three-way valve, and this application does not limit this.

[0073] In step S105, if the coffee grounds meet the preset discharge conditions, the coffee grounds are controlled to be discharged from the outlet of the brewing tank.

[0074] In the embodiments of this specification, the preset discharge condition can refer to the prerequisite condition that the system must meet to determine whether to start the slag discharge action.

[0075] In one possible implementation, the current humidity information of the coffee grounds is obtained; if the current humidity information corresponding to the coffee grounds meets the preset humidity condition, the coffee grounds are controlled to be discharged from the outlet of the brewing tank.

[0076] In the embodiments of this specification, the preset discharge conditions include preset humidity conditions. The preset humidity conditions can refer to a pre-set threshold standard used to determine whether the residue cake has reached a sufficiently dry state to be discharged.

[0077] After obtaining the coffee grounds, immediately control the humidity sensor in the brewing tank to monitor the humidity of the coffee grounds and obtain the current humidity information, for example, the current humidity is 13%.

[0078] The intelligent coffee machine system immediately judges the current humidity information. If the current humidity of the coffee grounds is 13% and meets the preset humidity condition, such as 18%, that is, if the current humidity is 13% less than 18%, then it is determined that the coffee grounds have met the conditions for removal and the removal program is immediately started to remove the coffee grounds from the brewing chamber.

[0079] Figure 5 This is a schematic diagram illustrating a coffee machine's stoking mechanism according to an exemplary embodiment. Figure 5 As shown, the coffee machine's pressing mechanism includes an upper piston and a lower piston. In this embodiment, the lower piston performs an upward pressing motion, but this application is not limited to this. Based on received instructions, such as a pressure of 65 kg and a stable pressing time of 4.8 seconds, the lower piston is controlled to move upward to apply pressure to the coffee grounds. Figure 5The arrows indicate the direction; after the extrusion action is complete, a coffee grounds cake is formed. After the coffee grounds cake is formed, the lower piston is moved downwards, in the opposite direction of the arrows, back to its initial position.

[0080] In another possible implementation, if the current humidity information corresponding to the coffee grounds does not meet the preset humidity condition, the second pressure information is adjusted to determine the pressing adjustment pressure information and pressing adjustment time information; based on the pressing adjustment pressure information and the pressing adjustment time information, the coffee grounds are subjected to three pressing processes to generate three-pressed coffee grounds; if the current humidity information corresponding to the three-pressed coffee grounds does not meet the preset humidity condition, the three-pressed coffee grounds are subjected to heating dehumidification process until the current humidity information of the three-pressed coffee grounds meets the preset humidity condition.

[0081] In the embodiments of this specification, the pressing pressure adjustment information can refer to the pressure information obtained after adjusting the second pressure. The pressing time adjustment information can refer to the time information obtained after adjusting the target pressing time information. The coffee grounds cake after three compressions can refer to the coffee grounds cake generated after compression.

[0082] For example, if the current humidity of the coffee grounds is 25%, which is greater than the preset humidity of 18%, the smart coffee machine system initiates a compression compensation program. This program adjusts the time and pressure of the initial second pressure setting. For instance, it increases the pressure by 15% from the initial 80 kgf, resulting in a compression adjustment pressure of 80 × (1 + 15%) = 92 kgf. It also increases the target compression time by 20% from the initial 4 seconds, resulting in a compression adjustment time of 4 × (1 + 20%) = 4.8 seconds. Based on the compression adjustment pressure of 92 kgf and the compression adjustment time of 4.8 seconds, the coffee grounds are then compressed a second time, generating a corresponding tertiary compression coffee grounds.

[0083] Furthermore, the humidity of the coffee grounds from the three extrusions is detected. If the current humidity of the coffee grounds from the three extrusions is 12%, which is less than the preset humidity condition of 18%, the pressing task is completed, and the coffee grounds from the three extrusions are then discharged from the brewing tank.

[0084] If the current humidity of the three-pressed coffee grounds is 20%, which is still higher than the preset humidity condition of 18%, the intelligent coffee machine system determines that the two consecutive presses have failed to meet the standard, for example, due to structural abnormalities within the coffee grounds, including the presence of large coffee bean particles. In this case, the brewing chamber is heated. The system can activate a heating module integrated into the brewing chamber, such as a PTC heating element or a low-pressure hot air generator (this application does not limit the specific type of heating module), to gently heat the three-pressed coffee grounds with lower power. Simultaneously, ventilation can be used to remove water vapor. During the heating and dehumidification process, the humidity sensor monitors the current humidity of the three-pressed coffee grounds in real time. Once the current humidity drops below the preset humidity condition of 18%, the heating and dehumidification process for the three-pressed coffee grounds is stopped.

[0085] In one possible implementation, an anomaly handling mechanism is triggered when an anomaly is detected in the initial coffee cake moisture information and / or the initial coffee cake weight information; based on the anomaly handling mechanism, preset safety upper limit pressing time information and preset safety upper limit pressing pressure information are determined; according to the preset safety upper limit pressing time information and the preset safety upper limit pressing pressure information, the extracted coffee cake is extruded to generate the coffee grounds; in response to the triggering of the anomaly handling mechanism, the coffee grounds are subjected to heating and dehumidification treatment within a preset time, and the coffee grounds after heating and dehumidification are controlled to be discharged from the outlet of the brewing tank.

[0086] In the embodiments of this specification, the abnormal handling mechanism may refer to the safety control strategy that automatically starts when the coffee machine is in abnormal humidity or weight, in order to prevent the pressing mechanism from overloading, coffee cake from splashing, motor from stalling or equipment from being damaged due to incorrect parameters.

[0087] The preset safety upper limit for slag pressing time can refer to the maximum time threshold for performing slag pressing operations in abnormal mode, such as 10 seconds. The preset safety upper limit for slag pressing pressure can refer to the maximum slag pressing pressure that is allowed to be applied in abnormal mode, such as 100 kgf, which is 90% of the piston's ultimate pressure.

[0088] For example, after completing the brewing and extraction process and obtaining the extracted coffee pouch, the humidity and weight of the extracted coffee pouch are monitored. If the following conditions are met, it is determined to be an abnormal state.

[0089] The first scenario is that the initial slag cake weight information returned by the weight sensor exceeds the maximum preset weight, is less than the minimum preset weight, or no weight is detected. The second scenario is that the initial slag cake weight information returned by the humidity sensor exceeds the maximum preset humidity, is less than the minimum preset humidity, or no humidity information is detected. The third scenario is that both the first and second scenarios exist simultaneously.

[0090] If any of the above conditions occur, an anomaly handling mechanism is triggered. Then, the second pressure information determined using the initial coffee cake moisture and weight information is ignored; safe pressing information is activated, including a preset safe upper limit pressing time (e.g., 5 seconds) and a preset safe upper limit pressing pressure (e.g., 10 kgf). This application does not limit the content of these parameters. Then, in response to the triggering of the anomaly handling mechanism, the extracted coffee cake is extruded to generate coffee grounds. Accordingly, the coffee grounds are subjected to a preset duration of heating and dehumidification treatment, for example, 10 seconds. After the heating and dehumidification is completed, the coffee grounds are discharged.

[0091] At the same time, the coffee machine's display screen and the corresponding application will show messages such as "There is an abnormality in the internal components of the coffee machine's brewing chamber. Please contact the operator for inspection and maintenance," thereby improving the user experience.

[0092] In one possible implementation, if the user has not set up automatic pressing and purging of the extracted coffee puck or has manually turned off the automatic pressing and purging operation, after the coffee machine has completed the coffee brewing and extraction process, the user can manually control the coffee machine display or the application on the user's mobile phone or tablet to find and open the page corresponding to puck pressing, and then click on the secondary pressing function. The intelligent coffee machine system can match the corresponding secondary pressure information from the system according to the user's puck pressing confirmation command, and then press the extracted coffee puck to generate coffee grounds, and then discharge the coffee grounds from the coffee machine.

[0093] Figure 6 This is a block diagram illustrating a smart coffee machine tamping device according to an exemplary embodiment. (Refer to...) Figure 6 The device may include: The coffee puck extrusion module 601 is used to control the first piston and / or the second piston to extrude coffee powder with a first pressure information during the coffee extraction stage to form a coffee puck. In one possible implementation, the coffee puck extrusion module 601 includes: The physical information acquisition unit is used to acquire the powder weight information, coffee grind particle size information, and coffee cake roasting degree information of the coffee powder during the coffee extraction stage. The first pressure and duration acquisition unit is used to match the first pressure and the first duration from a preset tamping parameter database based on the powder weight information, the coffee grind particle size information and the coffee puck roasting degree information. A coffee puck forming unit is used to control the first piston and / or the second piston to extrude the coffee powder at the first pressure and the first duration to form the coffee puck.

[0094] The coffee grounds generation module 603 is used to control the first piston and / or the second piston to perform a secondary extrusion process on the extracted coffee powder cake with the second pressure information after extraction is completed, so as to generate coffee grounds. In one possible implementation, the coffee grounds generation module 603 includes: The humidity and weight acquisition unit is used to monitor the humidity and weight of the extracted coffee powder cake and determine the initial coffee cake humidity information and initial coffee cake weight information. A moisture content determination unit is used to perform weighted fusion processing on the initial coffee cake moisture information and the initial coffee cake weight information to obtain the moisture content information of the extracted coffee cake. The predictive slag information determination unit is used to input the moisture content information into the target slag prediction model to obtain the predicted slag information. The roasting degree information acquisition unit is used to acquire the coffee grind particle size information and coffee cake roasting degree information corresponding to the coffee powder. The prediction information adjustment unit is used to adjust the predicted slag information based on the coffee grind particle size information and the coffee cake roasting degree information to generate the second pressure information.

[0095] In one possible implementation, the coffee grounds generation module 603 includes: The first correction unit is used to determine a first time correction coefficient and a first pressure correction coefficient from a preset correction database when the coffee grind size information and the coffee cake roasting degree information indicate that the coffee powder is in a first grinding and roasting state. The first time correction unit is used to multiply the predicted slag pressing time information with the first time correction coefficient to obtain the second duration; The first pressure correction unit is used to multiply the predicted slag pressure information with the first pressure correction coefficient to obtain the second pressure.

[0096] In one possible implementation, the coffee grounds generation module 603 includes: The second correction unit is used to determine a second time correction coefficient and a second pressure correction coefficient from the preset correction database when the coffee grind size information and the coffee puck roasting degree information indicate that the coffee powder is in a second grinding and roasting state; the coffee density corresponding to the coffee powder in the first grinding and roasting state is greater than the coffee density of the coffee powder in the second grinding and roasting state; the first time correction coefficient is greater than the second time correction coefficient; the first pressure correction coefficient is less than the second pressure correction coefficient; The second time correction unit is used to multiply the predicted slag pressing time information with the second time correction coefficient to obtain the second duration; The second pressure correction unit is used to multiply the predicted slag pressure information with the second pressure correction coefficient to obtain the second pressure.

[0097] In one possible implementation, the coffee grounds generation module 603 includes: The weight monitoring unit is used to monitor the humidity and weight of the extracted coffee pouch and determine the initial pouch humidity information and initial pouch weight information. The weighted fusion unit is used to perform weighted fusion processing on the initial coffee cake moisture information and the initial coffee cake weight information to obtain the moisture content information of the extracted coffee cake. A preset slag pressing unit is used to input the moisture content information into the target slag pressing prediction model to obtain the predicted slag pressing information; The grinding particle size acquisition unit is used to acquire the coffee grinding particle size information and coffee cake roasting degree information corresponding to the coffee powder; The slag adjustment unit is used to adjust the predicted slag information based on the coffee grind particle size information and the coffee cake roasting degree information to generate the second pressure information.

[0098] The coffee grounds discharge module 605 is used to control the coffee grounds to be discharged from the outlet of the brewing tank when the coffee grounds meet the preset discharge conditions.

[0099] In one possible implementation, the coffee grounds discharge module 605 includes: Humidity acquisition unit, used to acquire the current humidity information of coffee grounds; A humidity satisfaction unit is used to control the coffee grounds to be discharged from the outlet of the brewing tank when the current humidity information corresponding to the coffee grounds meets the preset humidity conditions.

[0100] In one possible implementation, the coffee grounds discharge module 605 includes: The pressing adjustment unit is used to adjust the second pressure information when the current humidity information corresponding to the coffee grounds does not meet the preset humidity conditions, and to determine the pressing adjustment pressure information and pressing adjustment time information. The three-extrusion coffee grounds cake generation unit is used to perform three-extrusion processing on the coffee grounds cake based on the pressing pressure information and the pressing time information to generate a three-extrusion coffee grounds cake. The heating and dehumidifying unit is used to heat and dehumidify the three-pressed coffee grounds when the current humidity information corresponding to the three-pressed coffee grounds does not meet the preset humidity condition, until the current humidity information of the three-pressed coffee grounds meets the preset humidity condition.

[0101] In one possible implementation, the smart coffee machine's slurry pressing device also includes: The brewing and extraction unit is used to control the hot water boiler to deliver hot water from the second piston to the coffee puck for brewing and extraction during the coffee extraction stage.

[0102] In one possible implementation, the smart coffee machine's slurry pressing device also includes: The wastewater discharge unit is used to control the second piston to connect with the waste discharge pipe during the secondary extrusion process of the extracted coffee powder cake, and to discharge wastewater from the waste discharge pipe.

[0103] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0104] Figure 7 This is a block diagram illustrating an electronic device for pressing coffee dregs in a smart coffee machine, according to an exemplary embodiment. The electronic device can be a terminal, and its internal structure diagram can be as follows: Figure 7 As shown, the electronic device includes a processor, memory, network interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for pressing coffee dregs in a smart coffee machine. The display screen can be an LCD screen or an e-ink screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad mounted on the device's casing, or an external keyboard, touchpad, or mouse.

[0105] Those skilled in the art will understand that Figure 7 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the electronic device to which the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0106] Figure 8 This is a block diagram illustrating an electronic device for pressing coffee dregs in a smart coffee machine, according to an exemplary embodiment. The electronic device may be a server, and its internal structure diagram may be as follows: Figure 8 As shown, the electronic device includes a processor, memory, and a network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for pressing coffee dregs in a smart coffee machine.

[0107] Those skilled in the art will understand that Figure 8 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the electronic device to which the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0108] In an exemplary embodiment, an electronic device is also provided, including: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to implement the pressing method of a smart coffee machine as described in the embodiments of this application.

[0109] In an exemplary embodiment, a computer-readable storage medium is also provided, which, when executed by a processor of an electronic device, enables the electronic device to perform the stoking method of the smart coffee machine according to the embodiments of this application. The computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, or optical data storage device, etc.

[0110] In an exemplary embodiment, a computer program product containing instructions is also provided, which, when run on a computer, causes the computer to perform the stoking method of the smart coffee machine in the embodiments of this application.

[0111] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0112] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0113] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for pressing coffee dregs in a smart coffee machine, characterized in that, An application is made in an intelligent coffee machine system, the intelligent coffee machine system including a brewing cylinder, a first piston, and a second piston; the brewing cylinder is used to hold coffee powder and extract it, and has an outlet for discharging coffee grounds; the first piston and the second piston are movably disposed within the brewing cylinder to seal both ends of the brewing cylinder; the method includes: During the coffee extraction stage, the first piston and / or the second piston are controlled to compress the coffee powder with the first pressure information to form a coffee cake; Once extraction is complete, the first piston and / or the second piston are controlled to perform a secondary extrusion process on the extracted coffee powder cake using the second pressure information to generate a coffee grounds cake; the second pressure in the second pressure information is greater than or equal to the first pressure in the first pressure information; the thickness of the coffee grounds cake is less than the thickness of the extracted coffee powder cake; When the coffee grounds meet the preset discharge conditions, the coffee grounds are controlled to be discharged from the outlet of the brewing tank.

2. The method for pressing coffee dregs in a smart coffee machine according to claim 1, characterized in that, The first piston is connected to the coffee machine's outlet, and the second piston is connected to a hot water boiler and a waste pipe via a three-way valve; the method further includes: During the coffee extraction stage, the hot water boiler is controlled to deliver hot water from the second piston to the coffee grounds for brewing and extraction.

3. The method for pressing coffee dregs in a smart coffee machine according to claim 2, characterized in that, The method also includes: During the secondary extrusion process of the extracted coffee powder, the second piston is connected to the waste discharge pipe, and wastewater is discharged from the waste discharge pipe.

4. The method for pressing coffee dregs in a smart coffee machine according to claim 1, characterized in that, The first pressure includes a first duration and a first pressure; the step of controlling the first piston and / or the second piston to extrude the coffee powder with the first pressure information to form a coffee cake during the coffee extraction stage includes: During the coffee extraction stage, the weight information of the coffee powder, the coffee grind size information, and the roasting degree information of the coffee puck are obtained. Based on the powder weight information, the coffee grind particle size information, and the coffee puck roasting degree information, the first pressure and the first duration are matched from the preset tamping parameter database; The first piston and / or the second piston are controlled to compress the coffee powder at the first pressure and the first duration to form the coffee cake.

5. The method for pressing coffee dregs in a smart coffee machine according to claim 1, characterized in that, Before the extraction is completed, and before the first piston and / or the second piston are controlled to perform a secondary extrusion process on the extracted coffee powder cake with the second pressure information to generate coffee grounds cake, the method includes: The moisture and weight of the extracted coffee pouch were monitored to determine the initial pouch moisture and initial pouch weight. The initial coffee grounds moisture information and the initial coffee grounds weight information are weighted and fused to obtain the moisture content information of the extracted coffee powder cake. The moisture content information is input into the target slag pressing prediction model to obtain the predicted slag pressing information; Obtain the coffee grind size information and coffee puck roasting degree information corresponding to the coffee powder; Based on the coffee grind size information and the coffee puck roasting degree information, the predicted tumble information is adjusted to generate the second pressure information.

6. The method for pressing coffee dregs in an intelligent coffee machine according to claim 5, characterized in that, The predicted pressing information includes predicted pressing time information and predicted pressing pressure information; the second pressure information includes a second pressure and a second duration; the step of adjusting the predicted pressing information based on the coffee grind size information and the coffee puck roasting degree information to generate the second pressure information includes: When the coffee grind size information and the coffee pouch roasting information indicate that the coffee powder is in a first grinding and roasting state, a first time correction coefficient and a first pressure correction coefficient are determined from a preset correction database; The predicted slag pressing time information is multiplied by the first time correction coefficient to obtain the second duration; The predicted slag pressure information is multiplied by the first pressure correction coefficient to obtain the second pressure.

7. The method for pressing coffee dregs in an intelligent coffee machine according to claim 5, characterized in that, The method further includes: When the coffee grind size information and the coffee puck roasting information indicate that the coffee powder is in a second grinding and roasting state, a second time correction coefficient and a second pressure correction coefficient are determined from the preset correction database; the coffee density corresponding to the coffee powder in the first grinding and roasting state is greater than the coffee density of the coffee powder in the second grinding and roasting state; the first time correction coefficient is greater than the second time correction coefficient; the first pressure correction coefficient is less than the second pressure correction coefficient; The predicted slag pressing time information is multiplied by the second time correction coefficient to obtain the second duration; The predicted slag pressure information is multiplied by the second pressure correction coefficient to obtain the second pressure.

8. The method for pressing coffee dregs in a smart coffee machine according to claim 1, characterized in that, The preset discharge conditions include preset humidity conditions. Before controlling the discharge of the coffee grounds from the outlet of the brewing tank when the preset discharge conditions are met, the process includes: Obtain the current humidity information of the coffee grounds; The step of controlling the coffee grounds to be discharged from the outlet of the brewing tank when the coffee grounds meet the preset discharge conditions includes: If the current humidity information corresponding to the coffee grounds meets the preset humidity condition, the coffee grounds are controlled to be discharged from the outlet of the brewing tank.

9. The method for pressing coffee dregs in a smart coffee machine according to claim 8, characterized in that, The method further includes: If the current humidity information corresponding to the coffee grounds does not meet the preset humidity conditions, the second pressure information is adjusted to determine the pressing pressure information and pressing time information. Based on the pressing pressure information and the pressing time information, the coffee grounds cake is subjected to three extrusion processes to generate a three-extrusion coffee grounds cake. If the current humidity information corresponding to the three-pressed coffee grounds does not meet the preset humidity condition, the three-pressed coffee grounds are heated to dehumidify until the current humidity information of the three-pressed coffee grounds meets the preset humidity condition.

10. The method for pressing coffee dregs in a smart coffee machine according to claim 5, characterized in that, The method further includes: If the initial slag cake moisture information and / or the initial slag cake weight information are found to be abnormal, the abnormality handling mechanism will be triggered. Based on the aforementioned anomaly handling mechanism, the preset safety upper limit slag pressing time information and the preset safety upper limit slag pressing pressure information are determined; Based on the preset safety upper limit pressing time information and the preset safety upper limit pressing pressure information, the extracted coffee powder cake is extruded to generate the coffee grounds cake; In response to the triggering of the abnormal handling mechanism, the coffee grounds are subjected to heating and dehumidification treatment for a preset time, and the coffee grounds after heating and dehumidification are controlled to be discharged from the outlet of the brewing tank.

11. A pressing device for a smart coffee machine, characterized in that, include: A coffee puck extrusion module is used to control the first piston and / or the second piston to extrude coffee powder with a first pressure information during the coffee extraction stage to form a coffee puck. The coffee grounds generation module is used to control the first piston and / or the second piston to perform a secondary extrusion process on the extracted coffee powder cake with the second pressure information after extraction is completed, so as to generate coffee grounds. The coffee grounds discharge module is used to control the coffee grounds to be discharged from the outlet of the brewing tank when the coffee grounds meet the preset discharge conditions.

12. An electronic device, characterized in that, include: processor; Memory used to store the processor's executable instructions; The processor is configured to execute the instructions to implement the pressing method of the smart coffee machine as described in any one of claims 1 to 10.

13. A computer-readable storage medium, characterized in that, When the instructions in the computer-readable storage medium are executed by the processor of the electronic device, the electronic device is able to perform the pressing method of the smart coffee machine as described in any one of claims 1 to 10.

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