Temperature determination method for target liquid, liquid supply regulating valve control method, and beverage machine

Abstract

The embodiment of the application provides a target liquid temperature determination method, a liquid supply adjusting valve control method and a beverage machine. The specific implementation scheme is: determining a target temperature difference value of the target liquid at the current moment and within a first preset time length before the current moment based on a temperature sensor; when the target temperature difference value is greater than a preset temperature difference value, determining a target temperature value of the target liquid at the current moment based on a first temperature measurement mode; and when the target temperature difference value is less than or equal to the preset temperature difference value, determining the target temperature value of the target liquid at the current moment based on the first temperature measurement mode or a second temperature measurement mode. In the application, the target temperature difference value within a time length before the current moment is judged, and a suitable temperature measurement mode is selected according to the target temperature difference value, so that effective correction of the temperature detection value can be realized when the temperature changes rapidly, the temperature rapid change condition can be effectively coped with, and a more accurate temperature detection result is provided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of beverage preparation equipment, in particular, the present application relates to a target liquid temperature determination method, liquid supply regulating valve control method and beverage machine. BACKGROUND

[0002] At present, temperature sensors are often used in beverage machines to detect temperature.

[0003] The existing temperature sensor may have a certain hysteresis when detecting temperature, that is, when the actual temperature changes rapidly, the measured value of the temperature sensor will lag behind the actual temperature, and the actual temperature change cannot be reflected, which affects the accuracy of temperature detection. SUMMARY

[0004] The present application provides a target liquid temperature determination method, liquid supply regulating valve control method and beverage machine, which aims to at least solve one of the above technical defects. The technical solution adopted by the present application is as follows:

[0005] In the first aspect, the present application provides a target liquid temperature determination method, which comprises:

[0006] determining a target temperature difference value of the target liquid at the current time and within a first preset time length before the current time of the target liquid based on the temperature sensor;

[0007] When the target temperature difference value is greater than the preset temperature difference value, the target temperature value of the target liquid at the current time is determined based on the first temperature measurement method, the first temperature measurement method is: based on the temperature detection value at the current time, the temperature detection value at the target historical time, the second preset time length and the sensor parameters of the temperature sensor, determining the temperature correction value and determining the temperature correction value as the target temperature value, the target historical time is the time before the second preset time length of the current time;

[0008] When the target temperature difference value is less than or equal to the preset temperature difference value, the target temperature value of the target liquid at the current time is determined based on the first temperature measurement method or the second temperature measurement method, and the second temperature measurement method is: determining the temperature detection value of the target liquid at the current time detected by the temperature sensor as the target temperature value.

[0009] In the second aspect, the present application provides another target liquid temperature determination method, which comprises:

[0010] obtaining the change of the storage amount of the target liquid stored in the liquid storage tank of the beverage machine;

[0011] determining the temperature measurement scene in the liquid storage tank based on the change of the storage amount;

[0012] The temperature measurement scenario includes a liquid supplementing scenario and a non-liquid supplementing scenario, the liquid supplementing scenario corresponds to the first temperature measurement manner, and the non-liquid supplementing scenario corresponds to the first temperature measurement manner or the second temperature measurement manner.

[0013] The target temperature value of the target liquid at the current time is determined by using the temperature measurement manner corresponding to the temperature measurement scenario.

[0014] The first temperature measurement manner is to determine a temperature correction value based on the temperature detection value at the current time, the temperature detection value at a target historical time, a second preset time length, and a sensor parameter of the temperature sensor, and determine the temperature correction value as the target temperature value, and the target historical time is a time before the second preset time length of the current time.

[0015] The second temperature measurement manner is to determine the temperature detection value of the target liquid at the current time detected by the temperature sensor as the target temperature value.

[0016] In a third aspect, an embodiment of the present application provides a liquid supply regulating valve control method, applied to a beverage machine, the beverage machine comprising a liquid supply pipeline, the liquid supply pipeline being used to deliver a target liquid to prepare a beverage, a liquid supply regulating valve being arranged on the liquid supply pipeline, and the method comprising the following steps:

[0017] Obtaining a target temperature value of the target liquid at a current time, the target temperature value being determined based on the temperature determination method described above.

[0018] Controlling a valve opening degree of the liquid supply regulating valve based on the target temperature value.

[0019] In a fourth aspect, an embodiment of the present application provides a beverage machine, comprising a liquid storage tank, the liquid storage tank being used to store a target liquid, the target liquid being used to prepare a beverage by the beverage machine, and the beverage machine further comprising:

[0020] A temperature sensor, arranged on the liquid storage tank, and used to detect a temperature detection value of the target liquid.

[0021] A controller, in communication connection with the temperature sensor, and configured to execute the temperature determination method described above.

[0022] The technical scheme provided by the embodiment of the present application has the following beneficial effects:

[0023] In the present application, the target temperature difference value within a time length before the current time is determined, and a temperature measurement manner suitable for the target temperature difference value is selected, so that effective correction of the temperature detection value can be realized when the temperature changes rapidly, the temperature rapid change situation can be effectively coped with, and more accurate temperature detection results can be provided. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced.

[0025] Figure 1 A flowchart of a target liquid temperature determination method according to an embodiment of the present application is shown in FIG. 1.

[0026] Figure 2 A flowchart of another target liquid temperature determination method according to an embodiment of the present application is shown in FIG. 2.

[0027] Figure 3 A flowchart of a liquid supply regulating valve control method according to an embodiment of the present application is shown in FIG. 3.

[0028] Figure 4 A sectional view of a liquid supply regulating valve according to an embodiment of the present application is shown in FIG. 4.

[0029] Figure 5 A structural diagram of a beverage machine according to an embodiment of the present application is shown in FIG. 5. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0031] The terms used in the embodiments of the present application are merely for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms “a”, “an” and “the” used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0032] It should be understood that the term “and / or” used herein merely describes an association relationship of associated objects, and can represent three relationships, for example, A and / or B, which can represent three cases of A alone, A and B together, and B alone. In addition, the character “ / ” herein generally represents an “or” relationship between the front and rear associated objects.

[0033] Depending on the context, the word “if” as used herein can be interpreted as “when” or “upon” or “in response to determining” or “in response to detecting”. Similarly, depending on the context, the phrase “if it is determined” or “if (a stated condition or event) is detected” can be interpreted as “when it is determined” or “in response to determining” or “when (a stated condition or event) is detected” or “in response to detecting (a stated condition or event)”.

[0034] The existing temperature sensor may have a certain hysteresis when detecting temperature, that is, when the actual temperature changes rapidly, the temperature measurement value of the temperature sensor lags behind the actual temperature, and the actual temperature change cannot be reflected, affecting the accuracy of temperature detection. Especially when the temperature difference of the measured target changes greatly, the hysteresis of the temperature sensor is more obvious, which seriously affects the accuracy of temperature detection.

[0035] Currently, the temperature sensor used in the beverage machine is mainly a temperature sensor based on a thermistor (Negative Temperature Coefficient, NTC).

[0036] The temperature sensor based on the thermistor generally determines the temperature measurement value in the following two ways. One is to use a lookup table method, which determines the resistance value of the thermistor at different temperatures in advance to construct a resistance value and temperature comparison table of the thermistor, and quickly obtains the temperature measurement value by looking up the table during measurement; the other is to calculate by B value formula, which calculates the temperature measurement value by referring to the resistance value of the thermistor at the reference temperature and the current temperature, the resistance value at the reference temperature, and the B value constant.

[0037] When the temperature sensor based on the thermistor measures temperature, the resistance value of the thermistor changes with a certain hysteresis, so that in the case of rapid temperature change, the resistance value of the thermistor changes lags behind the actual temperature change, and the real temperature change cannot be reflected, resulting in that the temperature measurement value lags behind the actual temperature, causing inaccurate temperature measurement. The hysteresis of the resistance value of the thermistor is related to the time constant of the thermistor, the larger the time constant, the slower the response of the thermistor to temperature change, and the smaller the time constant, the faster the response of the thermistor to temperature change. Therefore, using a thermistor with a small time constant can improve the accuracy of temperature measurement, but the thermistor with a small time constant has a high cost.

[0038] Figure 1 A flowchart of a method for determining the temperature of a target liquid is shown. As shown in Figure 1 The method can mainly include:

[0039] Step S110: determining a target temperature difference value of the target liquid at the current time and within a first preset time length before the current time based on the temperature sensor 520;

[0040] Step S120: When the target temperature difference value is greater than the preset temperature difference value, determining the target temperature value of the target liquid at the current time based on a first temperature measurement method, the first temperature measurement method being: determining a temperature correction value based on the temperature detection value at the current time, the temperature detection value at the target historical time, the second preset time length, and the sensor parameter of the temperature sensor 520, and determining the target temperature value as the temperature correction value, the target historical time being a time before the second preset time length of the current time.

[0041] Step S130: When the target temperature difference value is less than or equal to the preset temperature difference value, determining the target temperature value of the target liquid at the current time based on the first temperature measurement method or a second temperature measurement method, the second temperature measurement method being: determining the target temperature value of the target liquid at the current time detected by the temperature sensor 520 as the target temperature value.

[0042] As can be seen from the above process, in the present application, the target temperature difference value within a certain time before the current time is determined, and the appropriate temperature measurement method is selected according to the target temperature difference value, so that effective correction of the temperature detection value can be realized when the temperature changes rapidly, the temperature rapid change situation can be effectively coped with, and more accurate temperature detection results can be provided. The steps in the above process and the effects that can be further produced will be described in detail in combination with embodiments. It should be noted that the "first", "second", etc. in the present disclosure do not have the limitations of size, order and quantity, and are only used to distinguish in name, for example, "first temperature measurement method" and "second temperature measurement method" are used to distinguish between two temperature measurement methods. First, the above step S110, i.e. "determining the target temperature difference value of the target liquid at the current time and within the first preset time length before the current time based on the temperature sensor 520" will be described in detail in combination with an embodiment.

[0043] The target liquid is used to prepare a beverage in a beverage machine. The temperature sensor 520 is used to detect the temperature of the target liquid in the beverage machine.

[0044] As an example, the beverage machine can be provided with a liquid storage tank 510, and the target liquid can be stored in the liquid storage tank 510. When preparing a beverage, the target liquid can be guided out of the liquid storage tank 510. In this example, the temperature sensor 520 can be arranged in the liquid storage tank 510 to detect the temperature of the target liquid in the liquid storage tank 510, thereby providing a basis for controlling the temperature of the prepared beverage based on the temperature of the target liquid in the liquid storage tank 510.

[0045] As an example, the target liquid can be milk, which is stored in the liquid storage tank 510 in the beverage machine. The beverage machine can also be provided with a refrigeration chamber 550, and the liquid storage tank 510 is placed in the refrigeration chamber 550, so that the milk in the liquid storage tank 510 can be kept at a lower temperature to achieve preservation of the milk. In this case, when the milk is replenished into the liquid storage tank 510, since the replenished milk is usually at room temperature, that is, the temperature difference between the replenished milk and the milk in the liquid storage tank 510 is large, it can cause the temperature of the milk in the liquid storage tank 510 to change rapidly. Of course, the liquid storage tank 510 is not limited to being placed in a refrigerated environment, but can also be placed in a room temperature environment. In this case, when the refrigerated milk is replenished into the liquid storage tank 510, it can also cause the temperature of the milk in the liquid storage tank 510 to change rapidly.

[0046] The first preset time length can be a short time length before the current time, and the target temperature difference of the target liquid at the current time and the target temperature of the target liquid within the first preset time length can reflect the temperature change of the target liquid within a short time.

[0047] As an example, the first preset time length can be 1 second, and the temperature of the target liquid can be detected every 1 second, and the target temperature difference before and after 1 second can be calculated.

[0048] The above step S120, that is, "when the target temperature difference is greater than the preset temperature difference, determining the target temperature value of the target liquid at the current time based on the first temperature measurement method", will be described in detail below in combination with embodiments.

[0049] The target temperature value represents the temperature value determined by the temperature determination method in the embodiments of the present application, which can be used as the final output temperature value of the temperature sensor.

[0050] The target temperature difference can reflect the temperature change of the target liquid within a short time, and when the target temperature difference is greater than the preset temperature difference, it indicates that the temperature change of the target liquid within the first preset time before the current time is large, that is, there is a rapid temperature change. At this time, the first temperature measurement method can be used for temperature measurement. The first temperature measurement method can effectively adapt to the rapid temperature change condition and improve the accuracy of temperature detection.

[0051] The first temperature measurement method specifically includes: determining a temperature correction value based on the temperature detection value at the current time, the temperature detection value at the target historical time, the second preset time length, and the sensor parameters of the temperature sensor 520, and determining the temperature correction value as the target temperature value.

[0052] The target historical moment is a moment before the current moment by a second preset time length. The sensor parameter of the temperature sensor 520 can reflect the temperature change characteristic of the temperature sensor 520. As an example, the temperature sensor 520 is a thermistor temperature sensor 520, and the sensor parameter of the temperature sensor 520 can be specifically a time constant of the thermistor in the temperature sensor 520.

[0053] In the thermal inertia system, the temperature of the object will transition to an equilibrium state under the influence of the external environment temperature. During the temperature transition process of the temperature sensor 520, the influencing factors mainly include the initial temperature of the sensor and the self characteristic of the thermistor in the sensor. The temperature of the target historical moment sensor can be used as the initial temperature, and the self characteristic of the thermistor is mainly reflected by the sensor parameter of the temperature sensor 520.

[0054] As an example, the first temperature measurement manner corresponds to an algorithm that can be embodied by the following formula:

[0055]

[0056] Wherein, T represents the temperature correction value, T1 represents the temperature detection value of the target historical moment, T2 represents the temperature detection value of the current moment, t represents the second preset time length, and coeff represents the time constant of the thermistor in the temperature sensor 520.

[0057] Through the first temperature measurement manner, the effective correction of the temperature detection value when the temperature changes rapidly can be realized, and more accurate temperature detection results can be provided.

[0058] The following describes the step S130, i.e., “when the target temperature difference value is less than or equal to the preset temperature difference value, determining the target temperature value of the target liquid at the current moment based on the first temperature measurement manner or the second temperature measurement manner, the first temperature measurement manner being: determining the temperature detection value of the target liquid at the current moment detected by the temperature sensor 520 as the target temperature value” in combination with the embodiments.

[0059] When the target temperature difference value is not greater than the preset temperature difference value, it indicates that the temperature of the target liquid in the first preset time length before the current moment changes little, i.e., there is no temperature rapid change. At this time, the difference between the target temperature value obtained by the first temperature measurement manner (i.e., directly using the temperature detection value as the target temperature value) and the target temperature value obtained by the second temperature measurement manner is small, and the first temperature measurement manner or the second temperature measurement manner can be selected to obtain a relatively accurate target temperature value.

[0060] In an optional manner of the embodiments of the present application, the target temperature difference value is any one of the following:

[0061] a difference between the temperature correction value of the target liquid at the current moment and a temperature detection value of the target liquid within the first preset time length before the current moment;

[0062] a difference between the temperature correction value of the target liquid at the current moment and a temperature correction value of the target liquid within the first preset time length before the current moment.

[0063] In the embodiments of the present application, when determining the target temperature difference value, the temperature correction value at the current moment can be compared with the temperature detection value within the first preset time length, or the temperature correction value at the current moment can be compared with the temperature correction value within the first preset time length, both of which can determine the temperature change within the first preset time length.

[0064] As an example, the target temperature value at the current moment can be compared with the temperature correction value within the first preset time length to determine the target temperature difference value.

[0065] In an optional manner of the embodiments of the present application, the first preset time length is 1 second-2.5 seconds, and the preset temperature difference value is not less than 5°.

[0066] As an example, the first preset time length can be 1 second, and the preset temperature difference value is 5°.

[0067] As another example, the first preset time length can be 2.5 seconds, and the preset temperature difference value is 5°.

[0068] Figure 2 A flowchart of another method for determining the temperature of a target liquid provided by the embodiments of the present application is shown. As shown in Figure 2 The method can mainly include:

[0069] Step S210: Obtain the change of the storage amount of the target liquid stored in the liquid storage tank 510 of the beverage machine;

[0070] Step S220: Determine the temperature measurement scene in the liquid storage tank 510 based on the change of the storage amount, the temperature measurement scene including a liquid supplementing scene and a non-liquid supplementing scene, the liquid supplementing scene corresponding to a first temperature measurement manner, and the non-liquid supplementing scene corresponding to the first temperature measurement manner or a second temperature measurement manner;

[0071] Step S230: Determine the target temperature value of the target liquid at the current moment by using the temperature measurement manner corresponding to the temperature measurement scene, wherein the first temperature measurement manner is to determine a temperature correction value based on the temperature detection value at the current moment, the temperature detection value at a target historical moment, a second preset time length, and a sensor parameter of the temperature sensor 520, and determine the temperature correction value as the target temperature value, the target historical moment being a moment before the second preset time length before the current moment; and the second temperature measurement manner is to determine the temperature detection value of the target liquid at the current moment detected by the temperature sensor 520 as the target temperature value.

[0072] As can be seen from the above process, by the change of the storage amount of the target liquid in the liquid storage tank 510, it can be determined whether the liquid storage tank 510 is in a liquid supplementing scenario or a non-liquid supplementing scenario, and a suitable temperature measurement method is selected according to the scenario, which can effectively cope with rapid temperature changes and improve the accuracy of temperature detection.

[0073] The steps in the above process and the effects that can be further produced will be described in detail below with reference to embodiments.

[0074] First, the step S210, i.e., "obtaining the change of the storage amount of the target liquid in the liquid storage tank 510 of the beverage machine", will be described in detail with reference to an embodiment.

[0075] The liquid storage tank 510 is a component for storing the target liquid in the beverage machine, and the target liquid can be guided out of the liquid storage tank 510 when a beverage is needed.

[0076] The amount of the target liquid stored in the liquid storage tank 510 will decrease with use, and when the target liquid is supplemented into the liquid storage tank 510 (i.e., a liquid supplementing scenario), the temperature of the target liquid in the liquid storage tank 510 can change rapidly.

[0077] As an example, the target liquid is milk, and the beverage machine can also be provided with a refrigeration chamber 550, and the liquid storage tank 510 is placed in the refrigeration chamber 550, so that the milk in the liquid storage tank 510 can be kept at a low temperature to preserve the milk. In this case, when the milk is supplemented into the liquid storage tank 510, since the supplemented milk is usually at room temperature, i.e., the temperature difference between the supplemented milk and the milk in the liquid storage tank 510 is large, it can cause the temperature of the milk in the liquid storage tank 510 to change rapidly.

[0078] The step S220, i.e., "determining the temperature measurement scenario in the liquid storage tank 510 based on the change of the storage amount", will be described in detail below with reference to an embodiment.

[0079] When the milk is supplemented into the liquid storage tank 510, the change of the storage amount of the liquid storage tank 510 will inevitably occur, so the change of the storage amount can be used to determine whether the liquid storage tank 510 is in a liquid supplementing scenario or a non-liquid supplementing scenario.

[0080] As an example, when the change of the storage amount of the target liquid in the liquid storage tank 510 meets a predetermined change condition, it can be determined that the liquid storage tank 510 is in a liquid supplementing scenario, and when the change of the storage amount of the target liquid in the liquid storage tank 510 does not meet the predetermined change condition, it can be determined that the liquid storage tank 510 is in a non-liquid supplementing scenario.

[0081] In this example, the preset change condition is that the storage of the target liquid is less than the first specified storage, and then the storage of the target liquid increases to be greater than the second specified storage within the fourth preset time length.

[0082] The first specified storage can be a small storage value, the second specified storage can be a storage value that is not less than the first specified storage, and the fourth preset time length can be the time length required for the liquid supplementing action, such as 30 seconds. The storage of the target liquid being less than the first specified storage indicates that the storage of the target liquid in the liquid storage tank 510 is already small, and then the storage of the target liquid increases to be greater than the second specified storage within the fourth preset time length, which indicates that the storage of the target liquid in the liquid storage tank 510 increases rapidly. At this time, it can be determined that the liquid supplementing scenario is present.

[0083] In this example, the specific descriptions of the first temperature measurement manner and the second temperature measurement manner can refer to the foregoing examples.

[0084] The step S230, i.e., "determining the target temperature value of the target liquid at the current time by using the temperature measurement manner corresponding to the temperature measurement scenario", will be described in detail below in combination with embodiments.

[0085] In the embodiments of this application, the first temperature measurement manner can effectively correct the temperature detection value when the temperature changes rapidly, provide more accurate temperature detection results, and effectively adapt to the liquid supplementing scenario. Therefore, the first temperature measurement manner can be established in correspondence with the liquid supplementing scenario, so that the first temperature measurement manner is used to determine the target temperature value of the target liquid when the liquid supplementing scenario is present.

[0086] In the non-liquid supplementing scenario, the temperature of the target liquid does not change rapidly, at this time, the difference between the target temperature values obtained by the first temperature measurement manner and the second temperature measurement manner is small, and the first temperature measurement manner or the second temperature measurement manner can be selected to obtain a relatively accurate target temperature value. Therefore, the first temperature measurement manner or the second temperature measurement manner can be established in correspondence with the non-liquid supplementing scenario, so that the first temperature measurement manner or the second temperature measurement manner is used to determine the target temperature value of the target liquid when the non-liquid supplementing scenario is present.

[0087] By establishing the correspondence between the liquid supplementing scenario and the non-liquid supplementing scenario and the temperature measurement manner respectively, the temperature measurement manner that is adapted to the scenario present is selected when temperature measurement is performed, and the accuracy of temperature detection is improved.

[0088] In an optional manner of the embodiments of this application, the storage change condition is determined by at least one of the following manners:

[0089] The storage change condition is determined based on the weight change condition of the target liquid in the liquid storage tank 510.

[0090] The storage change condition is determined based on the liquid level change condition of the target liquid in the liquid storage tank 510.

[0091] In the embodiments of the present application, the change in the storage amount can be embodied by the change in the weight or the change in the liquid level of the target liquid in the liquid storage tank 510.

[0092] The change in the weight or the change in the liquid level of the target liquid can be detected by corresponding detection devices.

[0093] In an optional manner of the embodiments of the present application, the change in the liquid level of the target liquid is detected by a liquid level sensor or a reflection sensor, and / or the change in the weight of the target liquid is detected by a weighing sensor.

[0094] The liquid level sensor or the reflection sensor can be arranged to monitor the liquid level of the target liquid. The weighing sensor can be arranged to monitor the weight of the target liquid.

[0095] As an example, the liquid level sensor can be specifically a liquid level probe, and a head of the liquid level probe can be arranged at a position close to the bottom of the liquid storage tank 510. When the liquid level probe cannot detect the target liquid, a liquid supplement prompt information can be sent to prompt the user to supplement the target liquid. After the user supplements the target liquid, the liquid level probe can detect the target liquid again.

[0096] As an example, the target liquid is milk, the liquid storage tank 510 can be made of a nearly transparent material, and the reflection sensor can be arranged at a position close to the bottom of the liquid storage tank 510. When the liquid level in the liquid storage tank 510 is lower than the detection position of the reflection sensor, the light signal sent by the sending end of the reflection sensor can pass through the liquid storage tank 510 and be received by the receiving end of the reflection sensor. When the liquid level in the liquid storage tank 510 is higher than the detection position of the reflection sensor, the light signal sent by the sending end of the reflection sensor cannot pass through the liquid storage tank 510 and the milk in the liquid storage tank 510, and thus cannot be received by the receiving end of the reflection sensor. Therefore, the change in the liquid level can be monitored based on whether the receiving end of the reflection sensor can receive the light signal sent by the sending end of the reflection sensor.

[0097] As an example, the liquid storage tank 510 is arranged in the refrigerating chamber 550, and the weighing sensor is arranged below the liquid storage tank in the refrigerating chamber 550 to monitor the change in the weight of the target liquid.

[0098] In an optional manner of the embodiments of the present application, in response to the liquid supplement scenario in the liquid storage tank 510, the above method further includes:

[0099] In the last third specified time period at the current time, the target temperature value of the target liquid at the current time is determined by using the first temperature measurement manner.

[0100] In the embodiment of the present application, when it is determined that the liquid supplementing scenario is in the liquid supplementing tank 510, the case that the target liquid temperature changes rapidly in the liquid supplementing scenario generally lasts for a period of time. The first temperature measurement method can be used for temperature measurement in the period of time during which the temperature changes rapidly.

[0101] The third specified duration is the duration during which the target liquid temperature changes rapidly. The third specified duration can be set according to actual conditions, for example, 5 seconds.

[0102] In an optional manner of the embodiment of the present application, the beverage machine further includes a refrigeration chamber 550. The liquid supplementing tank 510 is arranged in the refrigeration chamber 550. The temperature difference between the target liquid used for supplementing the liquid supplementing tank 510 to implement the liquid supplementing operation and the refrigeration set temperature of the target liquid in the liquid supplementing tank 510 is greater than a preset value.

[0103] In the embodiment of the present application, the beverage machine can further be provided with the refrigeration chamber 550. The liquid supplementing tank 510 is arranged in the refrigeration chamber 550, so that the target liquid in the liquid supplementing tank 510 can be kept at a lower temperature. As an example, the target liquid is milk. By arranging the refrigeration chamber 550, the refrigeration and preservation of the milk can be implemented.

[0104] The refrigeration set temperature is the ideal refrigeration temperature of the target liquid, that is, the temperature required to be kept by the target liquid. At the refrigeration set temperature, the target liquid has a good preservation effect. By arranging the liquid supplementing tank 510 in the refrigeration chamber 550 for refrigeration, the target liquid can be kept at the refrigeration set temperature.

[0105] The temperature of the target liquid used for supplementing the liquid supplementing tank 510 is usually normal temperature. The temperature difference between the target liquid used for supplementing the liquid supplementing tank 510 and the target liquid in the liquid supplementing tank 510 is generally greater than a preset value, that is, the temperature difference between them is large. The newly supplemented target liquid can cause rapid temperature change of the target liquid in the liquid supplementing tank 510. By configuring the first temperature measurement method, effective correction of the temperature detection value when the temperature changes rapidly can be implemented, and more accurate temperature detection results can be provided.

[0106] Figure 3 A flowchart of a liquid supply adjusting valve control method provided by the embodiment of the present application is shown. The method is applied to a beverage machine. The beverage machine includes a liquid supply pipeline 540. The liquid supply pipeline 540 is used for conveying target liquid to prepare a beverage. A liquid supply adjusting valve 400 is arranged on the liquid supply pipeline 540. As shown in the figure, the method mainly can include the following steps. Figure 3

[0107] Step 310: Obtain a target temperature value of the target liquid at a current time. The target temperature value is determined based on the above temperature determination method.

[0108] Step 320: Control the valve opening degree of the liquid supply adjusting valve 400 based on the target temperature value.​

[0109] As can be seen from the above flow, by the target liquid temperature determination method in the present application, a more accurate target temperature value can be provided as a detection result, so that the valve opening of the liquid supply adjusting valve 400 controlled based on the target temperature value can more accurately control the beverage temperature.

[0110] The steps in the above flow and the effects that can be further produced will be described in detail below with respect to embodiments.

[0111] First, the step S310, i.e., "obtaining a target temperature value of the target liquid at the current time, the target temperature value being determined based on the above temperature determination method", will be described in detail with respect to embodiments.

[0112] The target temperature value of the target liquid in the beverage machine directly affects the temperature of the final output beverage, and therefore, accurately detecting the temperature of the target liquid is of great significance to accurately controlling the temperature of the output beverage.

[0113] In the embodiments of the present application, the target liquid temperature can be effectively determined by the above target liquid temperature determination method, thereby improving the accuracy of the temperature control of the output beverage.

[0114] The step S320, i.e., "controlling the valve opening of the liquid supply adjusting valve 400 based on the target temperature value", will be described in detail below with respect to embodiments.

[0115] The liquid supply adjusting valve 400 is arranged on the liquid supply pipeline 540, and by controlling the valve opening of the liquid supply adjusting valve 400, the area of the flow passage cross section of the liquid supply pipeline 540 can be controlled, thereby realizing the flow control of the liquid supply pipeline 540. By controlling the flow of the liquid supply pipeline 540, the temperature of the output beverage can be controlled.

[0116] As an example, the target liquid is milk, and the beverage prepared is hot milk. In this scenario, hot milk is prepared by injecting milk and steam into the mixing container. In the case of a fixed amount of steam, the temperature of the hot milk can be controlled by adjusting the flow of the target liquid. For example, when the milk temperature in the liquid storage tank 510 is low, the flow of the milk in the liquid supply pipeline 540 can be reduced so that the milk is warmed more fully; correspondingly, when the milk temperature in the liquid storage tank 510 is high, the flow of the milk in the liquid supply pipeline 540 can be increased to avoid excessively high milk temperature.

[0117] In an optional manner of the embodiments of the present application, the beverage machine further comprises a valve motor 440, which is configured to adjust the opening of the liquid supply adjusting valve 400. Controlling the valve opening of the liquid supply adjusting valve 400 based on the target temperature value comprises:

[0118] obtaining a set temperature of the beverage;

[0119] determining a temperature difference between the target temperature value and the set temperature;

[0120] determining a target rotation step number based on a preset correspondence between the temperature difference and the rotation step number, and based on the temperature difference between the target temperature value and the set temperature;

[0121] adjusting the rotation step number of the valve motor 440 to reach the target rotation step number, so as to adjust the valve opening degree of the liquid supply regulating valve 400.

[0122] The valve motor 440 is configured to adjust the opening degree of the liquid supply regulating valve 400. As an example, the rotation step number of the valve motor 440 is positively correlated with the valve opening degree, i.e., the smaller the rotation step number of the valve motor 440, the smaller the valve opening degree, and the larger the rotation step number of the valve motor 440, the larger the valve opening degree.

[0123] The liquid supply regulating valve 400 can include, but is not limited to, various types of electromagnetic valves.

[0124] The set temperature is the expected temperature of the beverage output by the beverage machine, wherein the beverage is hot milk or hot milk foam. Taking the beverage as hot milk as an example, the temperature difference between the target temperature value and the set temperature represents the temperature value raised by the steam to warm the milk.

[0125] It can be understood that when the temperature difference is large, the valve opening degree of the liquid supply regulating valve 400 can be small, so that the target liquid can be sufficiently warmed. When the temperature difference is small, the valve opening degree of the liquid supply regulating valve 400 can be large, so as to avoid the temperature of the target liquid being too high.

[0126] In the embodiments of the present application, a preset correspondence between the temperature difference and the rotation step number can be set, and the step number of the valve motor 440 is quickly determined based on the preset correspondence, so as to adjust the valve opening degree.

[0127] As an example, when the temperature difference is 0-10°, the corresponding rotation step number is 51. When the temperature difference is 15-20°, the corresponding rotation step number is 75.

[0128] As an example, Figure 4 is a cross-sectional view of a liquid supply regulating valve 400 provided in the embodiments of the present application.

[0129] As shown in Figure 4 , the liquid supply regulating valve 400 includes a regulating valve inlet 410, a regulating valve outlet 420, a valve core 430, and a valve motor 440.

[0130] The regulating valve inlet 410 and the regulating valve outlet 420 are respectively connected with the liquid supply pipeline 540, so that the liquid supply regulating valve 400 is connected to the liquid supply pipeline 540.

[0131] In this example, the output shaft of the valve motor 440 can drive the valve core 430 to move in the valve cavity. By controlling the motor step number of the adjusting valve motor 440, the position of the valve core 430 in the valve cavity can be controlled, so as to control the opening degree of the liquid supply adjusting valve 400. The larger the opening degree of the liquid supply adjusting valve 400, the larger the flow cross-sectional area between the adjusting valve inlet 410 and the adjusting valve outlet 420; the smaller the opening degree of the liquid supply adjusting valve 400, the smaller the flow cross-sectional area between the adjusting valve inlet 410 and the adjusting valve outlet 420.

[0132] Figure 5 A structural schematic diagram of a beverage machine is shown. The beverage machine includes a liquid storage tank 510, which is used to store a target liquid. The target liquid is used to make a beverage by the beverage machine. The beverage machine further includes:

[0133] A temperature sensor 520 is arranged in the liquid storage tank 510 and is used to detect a temperature detection value of the target liquid.

[0134] A controller 530 is communicatively connected with the temperature sensor 520. The controller 530 is configured to execute the temperature determination method described above.

[0135] The temperature sensor can detect the temperature detection value of the target liquid in the liquid storage tank.

[0136] The controller 530 can determine the target temperature value based on the temperature detection value and based on the temperature determination method described above. Figures 1-2

[0137] In an optional mode of the embodiment of the present application, the beverage machine further includes at least one of a liquid level sensor, a pair of sensors, and a weighing sensor, which are used to obtain the change of the storage amount of the target liquid stored in the liquid storage tank 510.

[0138] The liquid level sensor and the pair of sensors are used to detect the change of the liquid level in the liquid storage tank, and the weighing sensor is used to detect the change of the weight in the liquid storage tank. The change of the storage amount of the target liquid can be determined based on the change of the liquid level or the change of the weight.

[0139] As an example, the liquid level sensor and the pair of sensors can be arranged at a position close to the bottom of the liquid storage tank 510.

[0140] As an example, the liquid storage tank 510 is arranged in a refrigeration chamber 550, and the weighing sensor is arranged at a position below the liquid storage tank in the refrigeration chamber 550.

[0141] In an optional mode of the embodiment of the present application, the beverage machine further includes a liquid supply pipeline 540, which is used to deliver the target liquid to make a beverage. The beverage machine further includes:

[0142] ​The liquid supply regulating valve 400 is arranged on the liquid supply pipeline 540.

[0143] The valve motor 440 is in communication connection with the controller 530, and is configured to adjust the opening degree of the liquid supply regulating valve 400.

[0144] The controller 530 is further configured to execute the above-mentioned liquid supply regulating valve control method.

[0145] In the above-mentioned liquid supply regulating valve control method, the controller 530 can control the rotation step number of the valve motor 440 to control the opening degree of the liquid supply regulating valve 400, so as to adjust the area of the flow passage of the liquid supply pipeline 540, thereby controlling the output temperature of the beverage by controlling the flow of the target liquid. Figure 3 In the above-mentioned liquid supply regulating valve control method, the controller 530 can control the rotation step number of the valve motor 440 to control the opening degree of the liquid supply regulating valve 400, so as to adjust the area of the flow passage of the liquid supply pipeline 540, thereby controlling the output temperature of the beverage by controlling the flow of the target liquid.

[0146] Each of the above-described embodiments is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each of the embodiments focuses on the difference from other embodiments. In particular, the device embodiments are described more simply because they are basically similar to the method embodiments, and the relevant parts can be referred to the part of the method embodiments. The above-described device embodiments are only illustrative, and the units described as separate components can be or can not be physically separated, and the components shown as units can be or can not be physical units, i.e., they can be located in one place or distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiments according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0147] It should be understood that, although each step in the flowchart of the accompanying drawings is shown in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and they can be executed in other sequences. Moreover, at least part of the steps in the flowchart of the accompanying drawings can include multiple sub-steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence is not necessarily sequential, but can be executed in rotation or alternation with at least part of other steps or sub-steps or stages of other steps.

[0148] The above-described only some embodiments of the present application, it should be noted that, for those skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A method of determining the temperature of a target liquid used for making a beverage by a beverage maker, characterized by, The method comprises: determining a target temperature difference value of the target liquid at a current time and a time point one first preset time length before the current time based on a temperature sensor; when the target temperature difference value is greater than a preset temperature difference value, determining a target temperature value of the target liquid at the current time based on a first temperature measurement method, the first temperature measurement method being: determining a temperature correction value based on a temperature detection value at the current time, a temperature detection value at a target historical time point, a second preset time length, and a sensor parameter of the temperature sensor, and determining the temperature correction value as the target temperature value, the target historical time point being a time point one second preset time length before the current time; when the target temperature difference value is less than or equal to the preset temperature difference value, determining the target temperature value of the target liquid at the current time based on the first temperature measurement method or a second temperature measurement method, the second temperature measurement method being: determining a temperature detection value of the target liquid at the current time detected by the temperature sensor as the target temperature value; the temperature sensor is a thermistor temperature sensor, and the sensor parameter of the temperature sensor is a time constant of the thermistor; the first preset time length is 1 second to 2.5 seconds, and the preset temperature difference value is not less than 5°.

2. The method of claim 1, wherein, The target temperature difference value is any one of: a difference value between a temperature correction value of the target liquid at the current time and a temperature detection value of the target liquid at a time point one first preset time length before the current time; a difference value between a temperature correction value of the target liquid at the current time and a temperature correction value of the target liquid at a time point one first preset time length before the current time.

3. A method of determining the temperature of a target liquid used for making a beverage by a beverage maker, characterized by, The method comprises: acquiring a storage amount change of a target liquid stored in a liquid storage tank of the beverage machine; determining a temperature measurement scene in the liquid storage tank based on the storage amount change; the temperature measurement scene comprises a liquid supplementing scene and a non-liquid supplementing scene, the liquid supplementing scene corresponds to a first temperature measurement method, and the non-liquid supplementing scene corresponds to the first temperature measurement method or a second temperature measurement method; determining a target temperature value of the target liquid at a current time by using a temperature measurement method corresponding to the temperature measurement scene; the first temperature measurement method is: determining a temperature correction value based on a temperature detection value at the current time, a temperature detection value at a target historical time point, a second preset time length, and a sensor parameter of a temperature sensor, and determining the temperature correction value as the target temperature value, the target historical time point being a time point one second preset time length before the current time; the second temperature measurement method is: determining a temperature detection value of the target liquid at the current time detected by the temperature sensor as the target temperature value; the temperature sensor is a thermistor temperature sensor, and the sensor parameter of the temperature sensor is a time constant of the thermistor.

4. The method of claim 3, wherein, The storage amount change is determined by at least one of the following methods: determining the storage amount change based on a weight change of the target liquid in the liquid storage tank; determining the storage amount change based on a liquid level change of the target liquid in the liquid storage tank.

5. The method of claim 4, wherein, The liquid level change of the target liquid is detected by a liquid level sensor or a light barrier sensor, and / or the weight change of the target liquid is detected by a weighing sensor.

6. The method according to any one of claims 3-5, characterized in that, In response to the liquid supplementing scenario in the liquid storage tank, the method further comprises: In the last third specified time period at the current time, the target temperature value of the target liquid at the current time is determined by using the first temperature measurement method.

7. The method according to any one of claims 3-5, characterized in that, The beverage machine further comprises a refrigeration chamber, and the liquid storage tank is arranged in the refrigeration chamber. The temperature difference between the temperature of the target liquid used for supplementing the liquid storage tank to realize the liquid supplementing operation and the refrigeration set temperature of the target liquid in the liquid storage tank is greater than a preset value.

8. A control method of a liquid supply regulating valve applied to a beverage machine, the beverage machine comprising a liquid supply line for delivering a target liquid for the preparation of a beverage, characterized in that, The liquid supply pipeline is provided with a liquid supply regulating valve, and the method comprises: obtaining the target temperature value of the target liquid at the current time, which is determined based on the temperature determination method in any one of claims 1-7; controlling the valve opening degree of the liquid supply regulating valve based on the target temperature value.

9. The method of claim 8, wherein, The beverage machine further comprises a valve motor for adjusting the opening degree of the liquid supply regulating valve. The method of controlling the valve opening degree of the liquid supply regulating valve based on the target temperature value comprises: obtaining the set temperature of the beverage; determining the temperature difference between the target temperature value and the set temperature; determining the target rotation step number based on the preset corresponding relationship between the temperature difference and the rotation step number and based on the temperature difference between the target temperature value and the set temperature; adjusting the rotated step number of the valve motor to reach the target rotation step number to adjust the valve opening degree of the liquid supply regulating valve.

10. A beverage machine comprising a reservoir for storing a target liquid for use by the beverage machine in making a beverage, characterised in that, The beverage machine further comprises: a temperature sensor arranged in the liquid storage tank for detecting the temperature detection value of the target liquid; a controller in communication connection with the temperature sensor, which is configured to execute the temperature determination method in any one of claims 1-7.

11. The drinks machine of claim 10, wherein, The beverage machine further comprises at least one of a liquid level sensor, a light barrier sensor and a weighing sensor for obtaining the storage change of the target liquid stored in the liquid storage tank.

12. The beverage maker of claim 11, wherein, The beverage machine further comprises a liquid supply pipeline for conveying the target liquid to make the beverage, and the beverage machine further comprises: a liquid supply regulating valve arranged on the liquid supply pipeline; a valve motor in communication connection with the controller for adjusting the opening degree of the liquid supply regulating valve; the controller is further configured to execute the liquid supply regulating valve control method in claim 8 or 9.

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