Coffee machine extraction control method and coffee machine

Abstract

The application relates to a coffee machine extraction control method and a coffee machine, which comprises the following steps: during the production of one beverage, if the working current of a coffee bean grinding assembly is greater than or equal to a preset current threshold, the coffee bean grinding assembly is controlled to work for a first time until the coffee bean grinding is completed, and a brewing assembly is controlled to complete coffee liquid extraction according to a first extraction parameter; if the working current of the coffee bean grinding assembly at a second time is less than the preset current threshold, the coffee bean grinding assembly is controlled to stop grinding, and a second time from a first time to the second time is recorded; and according to the coffee bean supplement condition, the first time and the second time, the coffee bean grinding assembly is controlled to complete the coffee bean grinding, and the brewing assembly is controlled to complete the coffee liquid extraction according to the first extraction parameter or a second extraction parameter. The working current of the coffee bean grinding assembly is monitored in real time, the lack of coffee beans can be automatically judged, the coffee bean grinding parameter and the extraction parameter are adaptively adjusted according to the coffee bean supplement condition, the coffee quality is improved, and resource waste is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coffee machine control, in particular to a coffee machine extraction control method and a coffee machine. BACKGROUND

[0002] In the process of grinding beans in the existing fully automatic coffee machine, if the amount of coffee beans in the coffee bean storage box is insufficient, two processing methods are usually adopted: one is to stop grinding beans and discard the ground coffee powder, resulting in waste of coffee beans; the second is to use a small amount of coffee powder to make coffee, resulting in a decrease in quality. Both of these two methods will cause waste of coffee bean resources and poor experience of the coffee machine. SUMMARY

[0003] Therefore, it is necessary to provide a coffee machine extraction control method and a coffee machine which can solve the problems of waste of coffee beans, decrease in coffee quality and unintelligent operation caused by insufficient coffee beans in the existing coffee machine.

[0004] In a first aspect, the present application provides a coffee machine extraction control method, the coffee machine comprising a bean grinding assembly, a coffee bean storage assembly, a brewing assembly and a control assembly, wherein the bean grinding assembly is in communication with the coffee bean storage assembly and the brewing assembly respectively, and the control assembly is connected to the bean grinding assembly and the brewing assembly respectively; the method comprises:

[0005] monitoring the working current of the bean grinding assembly;

[0006] In the process of making a beverage, the bean grinding assembly starts to grind beans at a first time, and if the working current of the bean grinding assembly is greater than or equal to a preset current threshold, the bean grinding assembly is controlled to work continuously for a first time until the grinding of beans is completed, and the brewing assembly is controlled to complete coffee liquid extraction according to a first extraction parameter;

[0007] If the working current of the bean grinding assembly at a second time is less than the preset current threshold, the bean grinding assembly is controlled to stop grinding beans, and a second time from the first time to the second time is recorded; the coffee bean replenishment condition is obtained; and the bean grinding assembly is controlled to complete the grinding of beans according to the coffee bean replenishment condition, the first time and the second time, and the brewing assembly is controlled to complete coffee liquid extraction according to the first extraction parameter or a second extraction parameter.

[0008] In one of the embodiments, the coffee bean replenishment condition is obtained, comprising:

[0009] If the control assembly receives a first coffee bean replenishment signal, it is determined that the coffee bean replenishment condition is to replenish the same type of coffee beans;

[0010] If the control assembly receives a second coffee bean replenishment signal, it is determined that the coffee bean replenishment condition is to replenish different types of coffee beans.

[0011] In one of the embodiments, the controlling the grinding assembly to complete the grinding process according to the coffee bean replenishment condition, the first time and the second time, and the controlling the brewing assembly to complete the coffee liquid extraction according to the first extraction parameter or the second extraction parameter comprises:

[0012] If the coffee bean replenishment condition is replenishing the same type of coffee beans, calculating a third time according to the first time, the second time and a preset compensation time, controlling the grinding assembly to continue grinding for the third time to complete the grinding process, and controlling the brewing assembly to complete the coffee liquid extraction according to the first extraction parameter;

[0013] If the coffee bean replenishment condition is replenishing different types of coffee beans, determining the grinding assembly to complete the grinding process, and controlling the brewing assembly to complete the coffee liquid extraction according to the second extraction parameter.

[0014] In one of the embodiments, the method further comprises:

[0015] In the case that the first time is equal to the second time, the first extraction parameter and the second extraction parameter are the same;

[0016] In the case that the first time is greater than the second time, the water temperature of the second extraction parameter is greater than the water temperature of the first extraction parameter, the pressure of the second extraction parameter is greater than the pressure of the first extraction parameter, and the extraction time of the second extraction parameter is less than the extraction time of the first extraction parameter.

[0017] In one of the embodiments, if the coffee bean replenishment condition is replenishing different types of coffee beans, the method further comprises:

[0018] Calculating a powder amount ratio of a remaining powder amount in the brewing assembly and a complete cake powder amount according to the first time and the second time;

[0019] Calculating a water temperature increase coefficient, a pressure increase coefficient and an extraction time reduction coefficient according to the powder amount ratio respectively;

[0020] Calculating the water temperature of the second extraction parameter according to the water temperature of the first extraction parameter and the water temperature increase coefficient;

[0021] Calculating the water temperature of the second extraction parameter according to the pressure of the first extraction parameter and the pressure increase coefficient;

[0022] Calculating the extraction time of the second extraction parameter according to the extraction time of the first extraction parameter and the extraction time reduction coefficient.

[0023] In one of the embodiments, the method further comprises:

[0024] acquiring a beverage making type;

[0025] determining the first time and the first time according to the beverage making type;

[0026] determining a complete cake bean powder amount according to the first time;

[0027] determining the first extraction parameter according to the complete cake bean powder amount and a reference extraction parameter.

[0028] In one of the embodiments, determining the second extraction parameter's water temperature according to the first extraction parameter's water temperature and the water temperature increasing coefficient comprises:

[0029]

[0030] wherein, is the second extraction parameter's water temperature, is the first extraction parameter's water temperature, is a water temperature change empirical value, is the second time, is the first time.

[0031] In one of the embodiments, determining the second extraction parameter's pressure according to the first extraction parameter's pressure and the pressure increasing coefficient comprises:

[0032]

[0033] wherein, is the second extraction parameter's pressure, is the first extraction parameter's pressure, is a pressure change empirical value, is the second time, is the first time.

[0034] In one of the embodiments, determining the second extraction parameter's extraction time according to the first extraction parameter's extraction time and the extraction time decreasing coefficient comprises:

[0035]

[0036] wherein, is a third time, is an extraction time change empirical value, is the second time, is the first time.

[0037] In a second aspect, the present application also provides a coffee machine, comprising: a bean grinding assembly, a bean storage assembly, a brewing assembly and a control assembly, wherein the bean grinding assembly is connected to the bean storage assembly and the brewing assembly respectively, and the control assembly is connected to the bean grinding assembly and the brewing assembly respectively.

[0038] The control assembly is configured to execute the steps of the coffee machine extraction control method of the first aspect.

[0039] In summary, the present application provides a coffee machine extraction control method and a coffee machine, comprising: during the production of a beverage, if the working current of the bean grinding assembly is greater than or equal to a preset current threshold, the bean grinding assembly is controlled to work for a first time until the bean grinding assembly finishes grinding beans, and the brewing assembly is controlled to complete coffee extraction according to a first extraction parameter; if the working current of the bean grinding assembly at a second time is less than the preset current threshold, the bean grinding assembly is controlled to stop grinding beans, and a second time from the first time to the second time is recorded; the bean grinding assembly is controlled to complete grinding beans according to the replenishment of coffee beans, the first time and the second time, and the brewing assembly is controlled to complete coffee extraction according to the first extraction parameter or a second extraction parameter. The present application can automatically determine the lack of beans by monitoring the working current of the bean grinding assembly in real time, and adaptively adjust the grinding parameters and the extraction parameters according to the replenishment of coffee beans, thereby improving the quality of coffee and avoiding resource waste. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is a structural block diagram of the coffee machine in one embodiment;

[0041] Figure 2 It is a structural block diagram of the control assembly of the coffee machine in one embodiment;

[0042] Figure 3 It is a flowchart of the coffee machine extraction control method in one embodiment;

[0043] Figure 4 It is a structural block diagram of the coffee machine extraction control device in one embodiment;

[0044] Figure 5 It is an internal structure diagram of the computer device in one embodiment.

[0045] SUMMARY OF DRAWINGS:

[0046] Bean grinding assembly-110; bean storage assembly-120; brewing assembly-130; control assembly-140; processor-141; current monitoring unit-142; display unit-143; touch control unit-144. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0048] In the related art, if the amount of coffee beans in the storage box is insufficient to complete a complete coffee making process during the coffee making process of the conventional fully automatic coffee machine, two processing methods are usually adopted. The first method is to directly stop the coffee bean grinding and discard the ground coffee powder, resulting in waste of coffee beans. The second method is to continue to use the ground coffee powder to directly make coffee, at this time the quality of the coffee made will be reduced. The above two processing methods will cause the problems of waste of coffee beans or reduction of coffee quality due to insufficient coffee beans.

[0049] In one embodiment, as shown in Figure 1 A coffee machine is provided, including a coffee bean grinding assembly 110, a coffee bean storage assembly 120, a brewing assembly 130 and a control assembly 140, wherein the coffee bean grinding assembly 110 is in communication with the coffee bean storage assembly 120, the coffee bean grinding assembly 110 is in communication with the brewing assembly 130, and the control assembly 140 is connected to the coffee bean grinding assembly 110 and the brewing assembly 130, respectively.

[0050] In the present embodiment, the coffee bean storage assembly 120 includes a coffee bean storage box for sealingly storing coffee beans. In some embodiments, the coffee bean storage assembly 120 further includes a one-way exhaust valve and a coffee bean amount sensor, wherein the one-way exhaust valve is built-in the box cover to allow the beans to breathe out CO2 while blocking the entry of oxygen. The coffee bean amount sensor can use a photoelectric or weighing sensor to monitor the remaining amount in real time, and the coffee bean amount sensor is connected to the control assembly 140 to display a reminder to replenish coffee beans through the control assembly 140.

[0051] The coffee bean grinding assembly 110 includes a grinding blade, a driving unit, a bearing and other structures, and is used to grind coffee beans to a set particle size. The brewing assembly 130 includes a hot water system, a powder cake system and an extraction unit, and is used to complete the whole process of coffee extraction. The hot water system can achieve precise temperature control at 92-96 degrees Celsius (℃). The powder cake system includes an electronic weighing platform and a pre-soaking system, which can accurately measure the amount of coffee powder through the electronic weighing platform and slowly inject water under low pressure (3 bar) to complete the expansion of the powder cake. It should be noted that the specific structure of the coffee bean grinding assembly 110 and the brewing assembly 130 is not limited in the present embodiment, and can be determined according to the type of coffee machine in the actual application scenario.

[0052] In the present embodiment, the coffee bean grinding assembly 110 is directly connected to the coffee bean storage box and can rotate at the same speed under the same grinding degree to ensure that the coffee powder ground per unit time remains consistent, and the ground coffee powder will be further pushed into the brewing assembly 130.

[0053] In the embodiment, as shown in Figure 2 , the control assembly 140 includes a processor 141, a current monitoring unit 142, a display unit 143, and a touch control unit 144. The processor 141 is connected to the current monitoring unit 142, the display unit 143, and the touch control unit 144, respectively. In some embodiments, the display unit 143 and the touch control unit 144 can be integrated into a touch display unit 143. The current monitoring unit 142 includes a current sensor for monitoring the working current of the bean grinding assembly 110. The processor 141 is configured to receive and analyze the data from the current sensor. The display unit 143 is configured to display and prompt relevant information. The touch control unit 144 is configured to provide operation buttons, and the user can configure the extraction parameters, the bean grinding parameters, and various making parameters of the coffee machine by operating the touch control unit 144. It should be noted that the actual structure of the control assembly 140 can be configured according to the actual application scenario, which is not limited here.

[0054] In one embodiment, as shown in Figure 3 , a coffee machine extraction control method is provided, which is applied to the control assembly in Figure 1 for example, and includes the following steps:

[0055] S301, monitoring the working current of the bean grinding assembly.

[0056] In the embodiment, the current monitoring unit configured inside the bean grinding assembly continuously monitors the working current during the operation of the bean grinding assembly, and further determines the bean storage condition in the bean storage assembly based on the working current.

[0057] It should be noted that the actual type and setting position of the current monitoring unit can be configured in the driving circuit of the bean grinding assembly according to the actual application scenario. For example, a current monitoring sensor can be arranged in the driving circuit of the bean grinding assembly, and the current monitoring sensor is electrically connected to the processor, so that the working current of the bean grinding assembly can be monitored in real time.

[0058] In the embodiment, the working current of the bean grinding assembly can be monitored after the coffee machine is started. Alternatively, the working current of the bean grinding assembly can be monitored when the user operates the coffee machine to start making a beverage. The time when the processor starts to monitor the working current of the bean grinding assembly can be adaptively configured according to the actual application scenario.

[0059] S302, if the working current of the bean grinding assembly is greater than or equal to a preset current threshold, the bean grinding assembly is controlled to work for a first time until a bean grinding is completed, and the brewing assembly is controlled to complete coffee liquid extraction according to a first extraction parameter.

[0060] In the embodiment, the bean grinding assembly starts to grind beans at a first time during a beverage making process. The beverage making process refers to a coffee concentrate making process. In actual application, the coffee machine can make coffee types including espresso, American, latte, and mocha, and the embodiment does not limit the types of beverages that the coffee machine can make. The type of beverage can be determined according to the actual type of the coffee machine in the actual application scenario. The first time refers to the time point at which the bean grinding assembly starts to work. For example, a user starts to make coffee at 18:23 by operating the touch unit of the coffee machine, and the bean grinding assembly starts to grind beans at this time. Therefore, the first time is 18:23. In some feasible embodiments, the bean grinding assembly can also start after the coffee machine completes the boiler preheating operation. At this time, the first time can be 18:24. It should be noted that the specific time point of the first time can be configured according to the needs of the actual application scenario.

[0061] In the embodiment, the preset current threshold can be set to any value between 0.1 A and 10 A, and the actual value of the preset current threshold is not limited in the embodiment and can be configured according to the needs of the actual application scenario.

[0062] In the embodiment, the bean grinding assembly continues to work until the grinding process is completed when the working current of the bean grinding assembly is greater than or equal to the preset current threshold. In actual application, the grinding process can be determined to be completed when the amount of coffee powder in the cake making assembly is greater than or equal to the preset coffee powder amount threshold by monitoring the amount of coffee powder in the cake making assembly. It should be noted that the device for monitoring the amount of coffee powder in the cake making assembly can be configured according to the needs of the actual application scenario. In actual application, the amount of coffee powder produced by the bean grinding assembly is linearly related to the working time of the bean grinding assembly. The bean grinding assembly works for a first time to produce the amount of coffee powder required for completing the grinding process, and at this time, the cake making assembly can make a complete cake or a standard cake. At this time, the brewing assembly completes coffee extraction according to the first extraction parameter, i.e., the standard extraction parameter.

[0063] In the embodiment, the first time refers to the time required for the bean grinding assembly to complete the grinding process. The extraction parameters include water temperature, pressure, and extraction time. The water temperature is controlled by the hot water system of the coffee machine, and in actual application, the water temperature for extraction should be controlled within 80-100°C. In some preferred embodiments, the water temperature for extraction should be controlled within 91-93°C. The pressure for extraction should be controlled between 8 bar and 10 bar. The extraction time should be controlled between 5 seconds (s) and 40 s. In some preferred embodiments, the extraction time should be controlled between 23-27 s.

[0064] For example, the first extraction parameter in the embodiment includes water temperature , pressure and extraction time .

[0065] In the embodiment, the specific working process of the bean grinding assembly and the brewing assembly can refer to the specific working process of different coffee machines in actual application scenarios, which is not specifically limited here.

[0066] S303, if the working current of the bean grinding assembly at the second moment is less than the preset current threshold, the bean grinding assembly is controlled to stop grinding beans, and a second time from the first moment to the second moment is recorded.

[0067] In the embodiment, if the working current of the bean grinding assembly is less than the preset current threshold when the bean grinding assembly is working, the instantaneous time when the working current of the bean grinding assembly is less than the preset current threshold is recorded to obtain the second moment. At the second moment, the control assembly controls the bean grinding assembly to stop grinding beans, and records the second time from the start of grinding beans (the first moment) to the stop of grinding beans (the second moment).

[0068] In the embodiment, the working current of the bean grinding assembly being less than the preset current threshold indicates that there is no remaining coffee beans in the bean storage assembly and the grinding disc of the bean grinding assembly, and at this time, the user needs to be prompted to supplement coffee beans.

[0069] S304, the coffee bean supplementing condition is obtained.

[0070] In the embodiment, the coffee bean supplementing condition includes supplementing the same type of coffee beans and supplementing different types of coffee beans. The control assembly can determine the coffee bean supplementing condition by interacting with the user.

[0071] In actual application scenarios, a bean amount sensor is arranged in the bean storage assembly. After the user supplements coffee beans, the bean storage assembly will sense the newly added coffee beans inside, and at this time, the control assembly further controls the bean grinding assembly and the brewing assembly to complete coffee making according to the coffee bean supplementing condition.

[0072] S305, the bean grinding assembly is controlled to complete the grinding process according to the coffee bean supplementing condition, the first time and the second time, and the brewing assembly is controlled to complete coffee liquid extraction according to the first extraction parameter or the second extraction parameter.

[0073] In the embodiment, for the supplementing condition of supplementing the same type of coffee beans and the supplementing condition of supplementing different types of coffee beans, the coffee machine will complete coffee liquid extraction according to different extraction parameters.

[0074] In one of the embodiments, in the case where the first time is equal to the second time, the first extraction parameter and the second extraction parameter are the same; in the case where the first time is greater than the second time, the water temperature of the second extraction parameter is greater than that of the first extraction parameter, the pressure of the second extraction parameter is greater than that of the first extraction parameter, and the extraction time of the second extraction parameter is less than that of the first extraction parameter.

[0075] In the case where the first time and the second time are equal, it is explained that the coffee beans in the coffee bean storage assembly are just enough to make a complete powder cake at this time, and at this time, the first extraction parameter and the second extraction parameter are the same parameters, and the coffee bean replenishment condition is irrelevant to the extraction parameter corresponding to the brewing assembly.

[0076] In the case where the first time and the second time are not equal, it is explained that the coffee beans are not enough to make a complete powder cake during the grinding process of the grinding assembly. At this time, if it is determined according to the coffee bean replenishment condition that coffee liquid needs to be directly extracted, the coffee liquid is extracted according to the second extraction parameter that the water temperature is greater than the water temperature of the first extraction parameter, the pressure is greater than the pressure of the first extraction parameter, and the extraction time is less than the extraction time of the first extraction parameter. If it is determined according to the coffee bean replenishment condition that coffee powder is replenished first and then coffee liquid is extracted, the grinding assembly is first controlled to complete the grinding process until a complete powder cake is obtained, and then the coffee liquid is extracted according to the first extraction parameter.

[0077] Based on the above steps, the coffee machine extraction control method provided in the embodiment can monitor the change of the working current of the grinding assembly in real time, determine whether the coffee beans in the bean bin are insufficient, automatically record the current grinding time, intelligently guide the user to replenish coffee beans or adjust the extraction strategy in combination with the compensation mechanism of the residual coffee powder in the channel, thereby realizing efficient utilization of coffee beans and stable output of coffee quality, effectively solving the problems of resource waste, decline in coffee quality and insufficient intelligence of operation caused by insufficient coffee beans in existing coffee machines, and ensuring that high-quality coffee can be made every time.

[0078] In one of the embodiments, obtaining the coffee bean replenishment condition comprises:

[0079] If the control assembly receives the first coffee replenishment signal, it is determined that the coffee bean replenishment condition is to replenish the same type of coffee beans; if the control assembly receives the second coffee replenishment signal, it is determined that the coffee bean replenishment condition is to replenish different types of coffee beans.

[0080] In the embodiment, in the case where the working current of the grinding assembly is less than the preset current threshold, the control assembly determines that the coffee bean storage assembly needs to be replenished. At this time, the control assembly displays the coffee replenishment prompt information through the display, and the user can determine whether to replenish the same type of coffee beans or different types of coffee beans by operating the touch unit. In a feasible embodiment, the control assembly can also complete the interaction with the user through the voice assembly, and determine the coffee bean replenishment condition by asking the user whether to replenish the same type of coffee beans.

[0081] In the embodiment, after the user selects the same type of coffee bean replenishment option, i.e., operates the touch unit corresponding to the same type of coffee bean replenishment option, the control assembly receives a first coffee bean replenishment signal and determines that the coffee bean replenishment condition is replenishment of the same type of coffee bean. After the user selects the different type of coffee bean replenishment option, i.e., operates the touch unit corresponding to the different type of coffee bean replenishment option, the control assembly receives a second coffee bean replenishment signal and determines that the coffee bean replenishment condition is replenishment of the different type of coffee bean.

[0082] Based on the above steps, the coffee machine extraction control method provided in the embodiment can interact with the user to determine whether the same type of coffee bean is replenished when the lack of coffee beans in the coffee bean storage assembly is monitored, and further determine subsequent coffee bean grinding parameters and extraction parameters according to the user's coffee bean replenishment condition, so as to ensure the quality of coffee making and avoid waste of coffee beans.

[0083] In one of the embodiments, the coffee bean grinding assembly is controlled to complete the coffee bean grinding process according to the coffee bean replenishment condition, the first time and the second time, and the brewing assembly is controlled to complete the coffee liquid extraction according to the first extraction parameter or the second extraction parameter, including:

[0084] If the coffee bean replenishment condition is replenishment of the same type of coffee bean, a third time is calculated according to the first time, the second time and a preset compensation time, the coffee bean grinding assembly is controlled to continue grinding coffee beans for the third time to complete the coffee bean grinding process, and the brewing assembly is controlled to complete the coffee liquid extraction according to the first extraction parameter.

[0085] If the coffee bean replenishment condition is replenishment of the different type of coffee bean, it is determined that the coffee bean grinding assembly completes the coffee bean grinding process, and the brewing assembly is controlled to complete the coffee liquid extraction according to the second extraction parameter.

[0086] In the embodiment, the calculation formula of the third time is:

[0087]

[0088] wherein, the third time, the first time, the second time, the preset compensation time. In the embodiment, the preset compensation time .

[0089] In actual application, since the coffee bean grinder set may carry the residual coffee powder in the channel into the brewing device during the idling process, the coffee bean grinding assembly in the embodiment will additionally increase a grinding time , to compensate for this loss. It is to be understood that the coffee beans after being ground can not be immediately dropped into the brewer, but can go through a channel, and the coffee powder left in the channel can drop into the brewer due to the rotation of the blade and the shaking of the machine during the idle time. Since the channel is empty at this time, it is necessary to fill the channel with coffee powder during the next cycle of production, so as to increase the time to ensure that the coffee powder in the brewer is sufficient during the next cycle of production.

[0090] In this embodiment, if the same type of coffee beans is replenished, the control assembly will control the grinding assembly to continue grinding the beans for a third time to complete the grinding process, make a complete powder cake, and control the brew assembly to complete the coffee liquid extraction according to the first extraction parameter.

[0091] If different types of coffee beans are replenished, the control assembly will directly determine that the grinding assembly completes the grinding process, and the powder cake in the brew assembly is an incomplete powder cake, and the brew assembly needs to be controlled to complete the coffee liquid extraction according to a second extraction parameter different from the first extraction parameter.

[0092] In one of the embodiments, if the coffee bean replenishment condition is to replenish different types of coffee beans, the coffee machine extraction control method further comprises:

[0093] According to the first time and the second time, the powder amount ratio of the remaining bean powder amount in the brew assembly to the complete powder cake bean powder amount is calculated; according to the powder amount ratio, the water temperature increase coefficient, the pressure increase coefficient, and the extraction time reduction coefficient are calculated; according to the water temperature of the first extraction parameter and the water temperature increase coefficient, the water temperature of the second extraction parameter is calculated; according to the pressure of the first extraction parameter and the pressure increase coefficient, the water temperature of the second extraction parameter is calculated; according to the extraction time of the first extraction parameter and the extraction time reduction coefficient, the extraction time of the second extraction parameter is calculated.

[0094] In this embodiment, it is assumed that the first time is T1, the second time is T2, and the calculation formula of the powder amount ratio of the remaining bean powder amount in the brew assembly to the complete powder cake bean powder amount is It is to be understood that in a feasible embodiment, the powder amount ratio of the remaining bean powder amount in the brew assembly to the complete powder cake bean powder amount can also be calculated according to the bean powder weight collected by the weighing platform in the brew assembly. The weighing platform will record the complete powder cake bean powder weight and the current bean powder weight, and according to the ratio of the current bean powder weight to the complete powder cake bean powder weight, the aforementioned powder amount ratio is obtained.

[0095] In the embodiment, the water temperature increase coefficient, the pressure increase coefficient and the extraction time reduction coefficient are respectively calculated according to the powder amount ratio, and the water temperature, the pressure and the extraction time of the second extraction parameter are adaptively calculated by combining the water temperature, the pressure and the extraction time of the first extraction parameter, so that the extraction parameter is adaptively adjusted according to the powder amount ratio, and the extraction quality of the coffee machine is ensured.

[0096] In one of the embodiments, the water temperature of the second extraction parameter is determined according to the water temperature of the first extraction parameter and the water temperature increase coefficient, including:

[0097]

[0098] wherein, the water temperature of the second extraction parameter, the water temperature of the first extraction parameter, the water temperature change empirical value, the second time, the first time.

[0099] Based on the above steps, when the powder amount is reduced, appropriately increasing the water temperature can enhance the extraction efficiency. It can be generally set to 2-3℃, which means that the water temperature is increased by 2-3℃ for every 10% reduction of the powder amount.

[0100] The pressure of the second extraction parameter is determined according to the pressure of the first extraction parameter and the pressure increase coefficient, including:

[0101]

[0102] wherein, the pressure of the second extraction parameter, the pressure of the first extraction parameter, the pressure change empirical value, the second time, the first time.

[0103] Based on the above steps, when the powder amount is reduced, appropriately increasing the extraction pressure helps to improve the extraction efficiency. It can be generally set to 0.1-0.2, which means that the pressure is increased by 10%-20% for every 10% reduction of the powder amount.

[0104] The extraction time of the second extraction parameter is determined according to the extraction time of the first extraction parameter and the extraction time reduction coefficient, including:

[0105]

[0106] wherein, the third time, the extraction time change empirical value, for the second time, for the first time.

[0107] Based on the above steps, when the powder amount is insufficient, the extraction time needs to be appropriately shortened to ensure the extraction rate. For example, if the current powder amount is only 50% of the ideal powder amount ( ), the extraction time should be shortened to 0.5 times the original.

[0108] Based on the above steps, the extraction parameters can be automatically adjusted according to the powder amount ratio to ensure the quality of the coffee.

[0109] In one embodiment, the coffee machine extraction control method further comprises:

[0110] obtaining a beverage making type; determining the first time and the first time according to the beverage making type; determining the complete powder cake bean powder amount according to the first time; determining the first extraction parameter according to the complete powder cake bean powder amount and the reference extraction parameter.

[0111] In this embodiment, the beverage making type includes espresso, double espresso, American, latte, mocha, etc. The first time and the first time of different beverage making types can be the same or different, and can be configured according to the needs of the actual application scene. The first time corresponds to the bean powder amount of the complete powder cake.

[0112] In actual application, the standard powder cake bean powder amount corresponds to the reference extraction parameter, and when the complete powder cake bean powder amount corresponding to the current beverage making type is the same as the standard powder cake bean powder amount, the first extraction parameter is the same as the reference extraction parameter. When the complete powder cake bean powder amount corresponding to the current beverage making type is different from the standard powder cake bean powder amount, the reference extraction parameter can be adjusted according to the adjustment logic of the first extraction parameter and the second extraction parameter to obtain the first extraction parameter.

[0113] In summary, the coffee machine extraction control method provided in this embodiment provides current monitoring and lack of beans judgment logic. After the bean grinding assembly is started, the current sensor monitors the working current in real time. When the current is less than the preset current threshold, it is determined that there is a lack of beans, and the bean grinding is immediately stopped and the current bean grinding time is recorded. The user is prompted to select whether to replace the coffee bean variety through the display; if not, after adding the same variety of coffee beans, the bean grinding assembly continues to grind beans for a third time, and the third time considers the bean grinding compensation time to ensure the complete powder cake bean powder amount; if so, adjust the extraction parameter based on the remaining powder amount ratio. In the bean replacement scenario, the combination strategy of adaptively adjusting the water temperature, pressure, and extraction time is used to ensure the quality of the coffee.

[0114] It should be understood that although the steps in the flowcharts involved in the embodiments described above are shown in sequence according to the arrows, the steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, the execution of the steps is not strictly limited in sequence, and the steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the embodiments described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of the steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least part of other steps or steps or stages in other steps.

[0115] Based on the same inventive concept, the embodiments of the present application also provide a coffee machine extraction control device for implementing the coffee machine extraction control method described above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more coffee machine extraction control device embodiments provided below can refer to the limitations of the coffee machine extraction control method described above, which will not be repeated here.

[0116] In one embodiment, as shown in Figure 4 A coffee machine extraction control device 400 is provided, comprising: a current monitoring module 410, a first control module 420 and a second control module 430, wherein:

[0117] The current monitoring module 410 is configured to monitor the working current of the coffee bean grinding assembly;

[0118] The first control module 420 is configured to control the coffee bean grinding assembly to start grinding coffee beans at a first time during the preparation of a beverage, and if the working current of the coffee bean grinding assembly is greater than or equal to a preset current threshold, control the coffee bean grinding assembly to work continuously for a first time until the grinding of coffee beans is completed, and control the brewing assembly to complete the extraction of coffee liquid according to the first extraction parameter.

[0119] The second control module 430 is configured to control the coffee bean grinding assembly to stop grinding coffee beans if the working current of the coffee bean grinding assembly at a second time is less than the preset current threshold, and record a second time from the first time to the second time; obtain the coffee bean replenishment condition; control the coffee bean grinding assembly to complete the grinding of coffee beans according to the coffee bean replenishment condition, the first time and the second time, and control the brewing assembly to complete the extraction of coffee liquid according to the first extraction parameter or the second extraction parameter.

[0120] In summary, the embodiment provides a coffee machine extraction control device, which provides current monitoring and lack of beans determination logic. After the bean grinding assembly is started, the current sensor monitors the working current in real time. When the current is less than a preset current threshold, it is determined that there is a lack of beans, and the bean grinding assembly is immediately stopped and the current bean grinding time is recorded. The user is prompted to select whether to replace the coffee bean variety through the display; if not, after adding the same variety of coffee beans, the bean grinding assembly continues to grind beans for a third time, and the third time considers the bean grinding compensation time to ensure the complete powder cake bean powder amount; if so, the extraction parameters are adjusted based on the remaining powder amount ratio. In the bean replacement scenario, the combination strategy of adaptively adjusting the water temperature, pressure and extraction time ensures the coffee quality.

[0121] The above-mentioned various modules in the coffee machine extraction control device can be implemented by software, hardware and combinations thereof in whole or in part. The above-mentioned various modules can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to the above-mentioned various modules.

[0122] In one embodiment, a computer device, which can be a terminal, can have an internal structure diagram as shown in Figure 5 The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals in a wired or wireless manner. The wireless manner can be achieved by WIFI, mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by the processor to implement a coffee machine extraction control method. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer overlaid on the display screen, or can be a key, trackball or touchpad arranged on the shell of the computer device, or can be an external keyboard, touchpad or mouse, etc.

[0123] Those skilled in the art can understand that Figure 5The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. The specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0124] In one embodiment, a computer device is provided, comprising a memory and a processor, the memory storing a computer program, and the processor implementing the following steps when executing the computer program:

[0125] Monitoring the working current of the bean grinding assembly;

[0126] In a beverage making process, the bean grinding assembly starts grinding at a first time, and if the working current of the bean grinding assembly continuously is greater than or equal to a preset current threshold, the bean grinding assembly is controlled to continuously work for a first time until a grinding process is completed, and the brewing assembly is controlled to complete coffee liquid extraction according to a first extraction parameter.

[0127] If the working current of the bean grinding assembly at a second time is less than the preset current threshold, the bean grinding assembly is controlled to stop grinding, and a second time from the first time to the second time is recorded. The coffee bean replenishment condition is obtained, and the bean grinding assembly is controlled to complete the grinding process according to the coffee bean replenishment condition, the first time and the second time, and the brewing assembly is controlled to complete coffee liquid extraction according to the first extraction parameter or a second extraction parameter.

[0128] In one embodiment, a computer readable storage medium is provided, having stored thereon a computer program, the computer program being executed by a processor to implement the following steps:

[0129] Monitoring the working current of the bean grinding assembly;

[0130] In a beverage making process, the bean grinding assembly starts grinding at a first time, and if the working current of the bean grinding assembly continuously is greater than or equal to a preset current threshold, the bean grinding assembly is controlled to continuously work for a first time until a grinding process is completed, and the brewing assembly is controlled to complete coffee liquid extraction according to a first extraction parameter.

[0131] If the working current of the bean grinding assembly at a second time is less than the preset current threshold, the bean grinding assembly is controlled to stop grinding, and a second time from the first time to the second time is recorded. The coffee bean replenishment condition is obtained, and the bean grinding assembly is controlled to complete the grinding process according to the coffee bean replenishment condition, the first time and the second time, and the brewing assembly is controlled to complete coffee liquid extraction according to the first extraction parameter or a second extraction parameter.

[0132] In one embodiment, a computer program product is provided, comprising a computer program, the computer program being executed by a processor to implement the following steps:

[0133] monitor the working current of the bean grinding assembly;

[0134] In a beverage making process, the bean grinding assembly starts to grind beans at a first time, if the working current of the bean grinding assembly is greater than or equal to a preset current threshold, the bean grinding assembly is controlled to work for a first time until the grinding of beans is completed, and the brewing assembly is controlled to complete the extraction of coffee liquid according to a first extraction parameter;

[0135] If the working current of the bean grinding assembly at a second time is less than the preset current threshold, the bean grinding assembly is controlled to stop grinding beans, and a second time from the first time to the second time is recorded; the coffee bean replenishment condition is obtained; and the bean grinding assembly is controlled to complete the grinding of beans according to the coffee bean replenishment condition, the first time and the second time, and the brewing assembly is controlled to complete the extraction of coffee liquid according to the first extraction parameter or a second extraction parameter.

[0136] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, the processes of the above-mentioned embodiments of the methods can be included. Any reference to memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0137] Any combination of the technical features of the above embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist, it should be considered as the scope of the present application.

[0138] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A coffee machine extraction control method, characterized in that, The coffee machine comprises a bean grinding assembly, a bean storage assembly, a brewing assembly and a control assembly, wherein the bean grinding assembly is connected with the bean storage assembly and the brewing assembly respectively, and the control assembly is connected with the bean grinding assembly and the brewing assembly respectively; the method comprises: monitoring the working current of the bean grinding assembly; in a beverage making process, the bean grinding assembly starts to grind beans at a first time, if the working current of the bean grinding assembly is greater than or equal to a preset current threshold, the bean grinding assembly is controlled to work for a first time until the grinding of beans is completed, and the brewing assembly is controlled to complete coffee liquid extraction according to a first extraction parameter; if the working current of the bean grinding assembly at a second time is less than the preset current threshold, the bean grinding assembly is controlled to stop grinding beans, and a second time from the first time to the second time is recorded; the coffee bean replenishment condition is obtained; the bean grinding assembly is controlled to complete the grinding process according to the coffee bean replenishment condition, the first time and the second time, and the brewing assembly is controlled to complete the coffee liquid extraction according to the first extraction parameter or a second extraction parameter; the control of the bean grinding assembly to complete the grinding process according to the coffee bean replenishment condition, the first time and the second time, and the control of the brewing assembly to complete the coffee liquid extraction according to the first extraction parameter or the second extraction parameter, comprise: if the coffee bean replenishment condition is to replenish the same type of coffee beans, a third time is calculated according to the first time, the second time and a preset compensation time, the bean grinding assembly is controlled to continue grinding beans for the third time to complete the grinding process, and the brewing assembly is controlled to complete the coffee liquid extraction according to the first extraction parameter; if the coffee bean replenishment condition is to replenish different types of coffee beans, it is determined that the bean grinding assembly completes the grinding process, and the brewing assembly completes the coffee liquid extraction according to the second extraction parameter.

2. The method of claim 1, wherein, the obtaining of the coffee bean replenishment condition comprises: if the control assembly receives a first bean replenishment signal, it is determined that the coffee bean replenishment condition is to replenish the same type of coffee beans; if the control assembly receives a second bean replenishment signal, it is determined that the coffee bean replenishment condition is to replenish different types of coffee beans.

3. The method according to claim 1 or 2, characterized in that, the method further comprises: in the case that the first time is equal to the second time, the first extraction parameter and the second extraction parameter are the same; in the case that the first time is greater than the second time, the water temperature of the second extraction parameter is greater than that of the first extraction parameter, the pressure of the second extraction parameter is greater than that of the first extraction parameter, and the extraction time of the second extraction parameter is less than that of the first extraction parameter.

4. The method of claim 1, wherein, if the coffee bean replenishment condition is to replenish different types of coffee beans, the method further comprises: calculating the powder amount ratio of the remaining bean powder amount and the complete cake bean powder amount in the brewing assembly according to the first time and the second time; calculating the water temperature increase coefficient, the pressure increase coefficient and the extraction time reduction coefficient according to the powder amount ratio respectively; determining the water temperature of the second extraction parameter according to the water temperature of the first extraction parameter and the water temperature increase coefficient; determining the water temperature of the second extraction parameter according to the water temperature of the first extraction parameter and the water temperature increasing coefficient; determining the extraction time of the second extraction parameter according to the extraction time of the first extraction parameter and the extraction time decreasing coefficient.

5. The method of claim 1, wherein, The method further comprises: acquiring a beverage making type; determining the first time and the first time according to the beverage making type; determining the whole bean coffee powder amount according to the first time; determining the first extraction parameter according to the whole bean coffee powder amount and a reference extraction parameter.

6. The method of claim 4, wherein, The determining the water temperature of the second extraction parameter according to the water temperature of the first extraction parameter and the water temperature increasing coefficient comprises: wherein, is the water temperature for the second extraction parameter, is the water temperature for the first extraction parameter, is the water temperature change empirical value, is the second time, is the first time.

7. The method of claim 4, wherein, The determining the pressure of the second extraction parameter according to the pressure of the first extraction parameter and the pressure increasing coefficient comprises: wherein, is the pressure of the second extraction parameter, is the pressure of the first extraction parameter, is the pressure change experience value, is the second time, is the first time.

8. The method of claim 4, wherein, The determining the extraction time of the second extraction parameter according to the extraction time of the first extraction parameter and the extraction time decreasing coefficient comprises: wherein, is a third time, is an extraction time variation empirical value, is the second time, is the first time.

9. A coffee maker, characterized in that comprises: a bean grinding assembly, a bean storage assembly, a brewing assembly and a control assembly, wherein the bean grinding assembly is in communication with the bean storage assembly and the brewing assembly respectively, and the control assembly is connected with the bean grinding assembly and the brewing assembly respectively; The control assembly is used to execute the steps of the coffee machine extraction control method according to any one of claims 1 to 8.

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