WO2023220999A1

WO2023220999A1 - Liquid heating control method and system

Info

Publication number: WO2023220999A1
Application number: PCT/CN2022/093693
Authority: WO
Inventors: 张帆; 陈旭潮
Original assignee: 深圳市虎一科技有限公司
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2023-11-23

Abstract

A liquid heating control method for a cooking container. The method comprises: acquiring a target temperature; controlling, according to a heating instruction, a heating apparatus to heat liquid in a cooking apparatus at a constant heating power; and when the liquid reaches the target temperature, controlling the heating apparatus to heat with a maintaining power, wherein the maintaining power is used for maintaining the temperature of the liquid at the target temperature. The present invention further comprises a liquid heating control apparatus for a cooking container, a computer-readable storage medium, a liquid heating control system for a cooking container, and a cooking apparatus and a control method therefor.

Description

Liquid heating control method and system

Technical field

This specification relates to the technical field of cooking equipment, and in particular to a liquid heating control method and system.

Background technique

Modernist cooking has given rise to a new way of cooking and preserving food - sous vide; sous vide allows chefs or users to store the food they have cooked and then reheat it without compromising any of the food's subtle flavors and textures With sous vide, users can heat food to the exact temperature they want and for the exact time they want, and just as importantly, the heating can be very even so every part of the food reaches the same temperature, especially It's very easy to precisely control the core temperature and therefore the flavor and texture of your food.

From the above principles of sous vide cooking, we can know that temperature and time are the core factors that affect the flavor and texture of food. In order to pursue the flavor and texture of food and ensure the repeatability of cooking results, it is necessary to ensure that the sous vide cooking device can provide a temperature Stability and uniformity of the low-temperature cooking environment and maintaining the stability and uniformity of the temperature in the cooking environment over a long period of time have always been technical difficulties faced by sous vide cooking devices.

Contents of the invention

Embodiments of this specification provide a control method for liquid heating of a cooking container. The method includes: obtaining a target temperature; controlling a heating device to heat the liquid in the cooking device according to the heating instruction; when the liquid reaches the target temperature When, the heating device is controlled to maintain power for heating; the maintenance power is used to maintain the temperature of the liquid at the target temperature.

In some embodiments, the method further includes: obtaining the heating rate of the liquid before it is heated to the target temperature; and determining the maintenance power according to the heating rate.

In some embodiments, determining the maintenance power according to the heating rate includes: determining the heat dissipation power in the stage after the liquid is heated to the target temperature according to the heating rate; determining the heat dissipation power according to the heat dissipation power. Maintain power.

In some embodiments, determining the maintenance power according to the heating rate further includes: determining the maintenance power according to the heating rate, the volume of the liquid and/or the ambient temperature.

In some embodiments, obtaining the heating rate of the liquid in the stage before it is heated to the target temperature includes: obtaining the heating information of the liquid in the stage before it is heated to the target temperature; and determining the temperature rise of the liquid based on the heating information. The heating rate before reaching the target temperature.

In some embodiments, the heating information includes temperature values corresponding to the liquid at at least two moments; and determining, based on the heating information, the heating rate in the stage before the liquid is heated to the target temperature includes: according to the The temperature values corresponding to at least two moments determine the heating rate.

In some embodiments, the method further includes: determining the change trend of the maintenance temperature in the stage after the liquid is heated to the target temperature; and adjusting the maintenance power according to the change trend of the maintenance temperature.

In some embodiments, adjusting the maintenance power according to the change trend of the maintenance temperature includes adjusting the maintenance power to a constant power in the warming phase when the maintenance temperature is lower than a second temperature threshold.

In some embodiments, the heating rate includes a first heating rate and a second heating rate, and determining the maintenance work according to the heating rate includes: according to the first heating rate and the second heating rate. , determine the maintenance power.

In some embodiments, the heating device includes a rated power, and the maintaining power is determined based on the rated power, the first heating rate, and the second heating rate.

In some embodiments, determining the change trend of the maintenance temperature in the stage after the liquid is heated to the target temperature includes: obtaining the temperature values corresponding to at least two moments in the stage after the liquid is heated to the target temperature; according to the The temperature values corresponding to the at least two moments are determined to determine the change trend of the maintenance temperature.

In some embodiments, the time interval between two adjacent moments in the at least two moments ranges from 3 milliseconds to 10 milliseconds.

In some embodiments, the change trend of the maintenance temperature is opposite to the adjustment trend of the maintenance power.

In some embodiments, adjusting the maintenance power according to the change trend of the maintenance temperature includes: when the change trend of the maintenance temperature is an increase in temperature, reducing the current maintenance power by a preset power step to As the adjusted maintenance power; when the change trend of the maintenance temperature is a temperature drop, the current maintenance power is increased by a preset power step as the adjusted maintenance power.

In some embodiments, the corresponding temperature values of the liquid at at least two moments are obtained through a temperature sensor.

In some embodiments, the liquid is stored in a liquid storage tank and the temperature sensor is located in the liquid storage tank.

In some embodiments, the liquid is stored in a liquid storage tank, the liquid storage tank is connected to a circulation pipeline, and the liquid circulates in the circulation pipeline; the temperature sensor is located in the liquid of the circulation pipeline. Entrance side.

In some embodiments, a heating device is provided in the circulation pipeline; the temperature sensor is located in the pipeline between the liquid inlet of the circulation pipeline and the heating device.

In some embodiments, the liquid is used to heat food materials in a cooking device; the method further includes: obtaining the target temperature through a terminal device.

In some embodiments, the method further includes: obtaining a preset cooking time through a terminal device; and when the liquid reaches the target temperature, controlling the heating device to maintain power for heating, including: controlling the heating device Heat at maintenance power until the preset cooking time is reached.

Embodiments of this specification also provide a control device for liquid heating of a cooking device. The device includes at least one processor and at least one memory. The at least one memory is used to store computer instructions; when the at least one processor When executing the computer instructions, the processor is configured to: obtain the target temperature; control the heating device to heat the liquid in the cooking device according to the heating instruction; when the liquid reaches the target temperature, control the heating device to The maintenance power is used for heating; the maintenance power is used to maintain the temperature of the liquid at the target temperature.

Embodiments of this specification also provide a computer-readable storage medium, which stores computer instructions. After the computer reads the computer instructions in the storage medium, the computer executes any of the methods described above.

Embodiments of this specification also provide a control system for liquid heating of a cooking device. The system includes: a temperature-raising module, used to control the heating device to heat the liquid according to the heating instruction; a constant temperature module, used to control the liquid when the liquid reaches When the target temperature is reached, the heating device is controlled to maintain power for heating; the maintenance power is used to maintain the temperature of the liquid at the target temperature.

This specification also provides a cooking device, which includes a liquid storage tank and a heating device; the heating device is used to heat the liquid in the liquid storage tank; the heating device has a first heating mode and a third heating mode. Two heating modes; in the first heating mode, the heating device heats the liquid in the liquid storage tank with full power; in the second heating mode, the heating device heats the liquid storage tank with maintenance power The liquid in the liquid storage tank is heated; the heating device switches between the first heating mode and the second heating mode according to the temperature of the liquid in the liquid storage tank.

In some embodiments, when the temperature of the liquid in the liquid storage tank reaches a target temperature, the heating device switches from the first heating mode to the second heating mode.

In some embodiments, the target temperature includes a first temperature threshold and a second temperature threshold. When the temperature of the liquid in the liquid storage tank rises to the first temperature threshold, the heating device switches from the first temperature threshold to the first temperature threshold. A heating mode is switched to the second heating mode; when the temperature of the liquid in the liquid storage tank drops to the second temperature threshold, the heating device switches from the second heating mode to the first heating mode. model.

In some embodiments, the maintenance power is determined by a heating rate in the first heating mode; wherein the heating rate includes a first heating rate and a second heating rate.

In some embodiments, the heating device includes a rated power, and the rated power is used to determine the initial power of the maintenance power in conjunction with the first heating rate and the second heating rate.

In some embodiments, the maintenance power is also determined by the volume of liquid in the liquid storage tank and/or the temperature of the environment in which the liquid storage tank is located.

In some embodiments, the maintenance power in the second heating mode can also be adjusted according to the temperature change trend of the liquid in the liquid storage tank; when the temperature change trend of the liquid in the liquid storage tank is an increase in temperature when the temperature of the liquid in the liquid storage tank decreases, the current maintenance power is increased.

In some embodiments, the maintenance power in the second heating mode has an initial power, and the maintenance power is determined by the initial power, the current actual temperature difference and the historical temperature difference integral.

In some embodiments, the maintenance power in the second heating mode can also be adjusted according to the change trend of the temperature of the liquid in the liquid storage tank relative to the target temperature; when the temperature of the liquid in the liquid storage tank When the temperature is higher than the target temperature, the current maintenance power is reduced; when the temperature of the liquid in the liquid storage tank is lower than the target temperature, the current maintenance power is increased.

In some embodiments, the cooking device further includes a circulation pipeline, the circulation pipeline has a liquid inlet side and a liquid outlet side connected with the liquid storage tank; the cooking device further includes a temperature sensor, the temperature sensor A sensor is provided on the liquid inlet side.

In some embodiments, the method is executed by at least one processor, and the method includes: obtaining a target temperature set for the cooking device; determining the heating rate according to the target temperature and the volume of the liquid storage tank in the cooking device; according to the The heating rate determines the maintenance power; when the temperature of the liquid in the liquid storage tank reaches the target temperature, the heating device is controlled to operate at the maintenance power.

Description of the drawings

This specification is further explained by way of example embodiments, which are described in detail by means of the accompanying drawings. These embodiments are not limiting. In these embodiments, the same numbers represent the same structures, where:

Figure 1 is an exemplary schematic diagram of a cooking device according to some embodiments of the present specification;

Figure 2 is an exemplary hardware and/or software example diagram of a cooking device according to some embodiments of the present specification;

Figure 3 is an exemplary flow chart of a liquid heating control method according to some embodiments of this specification;

Figure 4 is another flow chart of a liquid heating control method according to some embodiments of this specification;

Figure 5 is an exemplary block diagram of a liquid heating control system according to some embodiments of the present specification.

Detailed ways

In order to explain the technical solutions of the embodiments of this specification more clearly, the accompanying drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some examples or embodiments of this specification. For those of ordinary skill in the art, without exerting any creative efforts, this specification can also be applied to other applications based on these drawings. Other similar scenarios. Unless obvious from the locale or otherwise stated, the same reference numbers in the figures represent the same structure or operation.

It will be understood that the terms "system", "apparatus", "unit" and/or "module" as used herein are a means of distinguishing between different components, elements, parts, portions or assemblies at different levels. However, said words may be replaced by other expressions if they serve the same purpose.

As shown in this specification and claims, words such as "a", "an", "an" and/or "the" do not specifically refer to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only imply the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or apparatus may also include other steps or elements.

Flowcharts are used in this specification to illustrate operations performed by systems according to embodiments of this specification. It should be understood that preceding or following operations are not necessarily performed in exact order. Instead, the steps can be processed in reverse order or simultaneously. At the same time, you can add other operations to these processes, or remove a step or steps from these processes.

The liquid heating control system in one or more embodiments of this specification can be applied to a cooking device. The cooking device may be a cooking device that performs cooking operations according to a preset cooking program and controllably adjusts cooking parameters to cook ingredients. In some embodiments, the cooking device may include, but is not limited to, a low-temperature cooking device, a steaming device, a rice cooker, etc., or any combination thereof. Among them, low-temperature slow-cooking devices may include, but are not limited to, low-temperature slow-cooking sticks, low-temperature slow-cooking machines, etc. In some embodiments, the low-temperature cooking device may refer to a cooking device that uses a low-temperature cooking method to cook ingredients. For example, a vacuum machine can be used to evacuate a vacuum bag containing food, and then the entire vacuum bag containing food can be placed into a liquid storage tank containing liquid, and the liquid in the liquid storage tank can be heated by a heating device. Heating is performed to complete low-temperature slow cooking of ingredients. Low-temperature slow-cooking of food materials may refer to warm cooking of food materials at a low temperature (for example, about 60° C.) for a longer period of time (for example, more than 2 hours). One or more embodiments in this specification will be illustratively described below by taking a low-temperature slow-cooking device as an example. Figure 1 is an exemplary schematic diagram of a cooking device according to some embodiments of the present specification. In some embodiments, cooking device 100 may be used alone. In some embodiments, the cooking device 100 may also be used with a temperature probe, a vacuum machine, a vacuum bag, or other cooking devices. In some embodiments, the cooking device 100 can also be used in conjunction with a portable device (eg, a mobile phone, a watch, a computer) to control the cooking device 100 on the portable device. For example, the cooking device 100 can be used with other cooking devices or portable devices through a cloud server to send or synchronize data, thereby achieving the purpose of data sharing. The shared data may be displayed via a display component of the cooking device 100 . In some embodiments, the cooking device 100 can also send device information related to the operation of the cooking device 100 to the equipment management platform, and use the equipment management platform to monitor whether the cooking device 100 has the ability to operate normally. The device information may include device status information (for example, device power-on time, device power-off time, device usage frequency), hardware status information (for example, hardware fault information), communication status information (for example, communication fault information), battery status information (for example, , battery level), etc., one or more. In some embodiments, the cooking device 100 can be set up with a network. The networked cooking device 100 can obtain recipes from a server, a portable device or other cooking devices, and browse them on the cooking device 100 . When the cooking device 100 is disconnected from the Internet, locally stored recipes are browsed.

In some embodiments, the cooking device 100 may include a liquid storage module 110, a heating module 120, a processing control module 130, a detection module 140, an information input/output module 150, and a memory 160.

The liquid storage module 110 may be used to store liquid. In some embodiments, the liquid storage module 110 may include a liquid storage tank in which liquid is stored. The liquid storage tank may be a tank with a top opening through which liquid is injected into the liquid storage tank. The top of the liquid storage tank can also be provided with a tank cover matching the top opening to achieve sealing of the liquid storage tank. In some embodiments, the cooking device 100 may include a liquid circulation system (also called a large circulation system or a first circulation system of the cooking device 100) disposed between the liquid storage module 110 and the heating module 120. The large circulation system of the cooking device 100 may be composed of the liquid circulation system of the liquid storage module 110 (also called the second circulation system) and the circulation pipeline of the heating module 120 . The large circulation system of the cooking device 100 can realize liquid circulation between the liquid storage tank and the main body of the cooking device 100 (the circulation pipeline of the heating module 120 is arranged in the main body). In some embodiments, the liquid storage tank may include an inlet part and an outlet part, and the inlet part and the outlet part of the liquid storage tank are respectively connected with the water outlet and the water inlet of the host to communicate with the circulation pipeline of the heating module 120, thereby achieving liquid Circulation flow between the reservoir and the main unit. In some embodiments, the inlet and outlet of the liquid storage tank may be disposed on the same and/or different side walls of the liquid storage tank. For example, the inlet and outlet of the liquid storage tank may be two mouths provided on the outside of the same side wall of the liquid storage tank.

In some embodiments, the liquid in the liquid storage tank may include, but is not limited to, water or other liquids. Other liquids may include edible liquids (eg, beverages, coffee, etc.). In some embodiments, the liquid storage module 110 may be communicatively connected with other modules of the cooking device 100 (eg, the heating module 120, the process control module 130, the detection module 140, etc.). For example, the liquid storage module 110 may be connected to the processing control module 130, and the processing control module 130 may control on/off the liquid circulation system of the liquid storage module 110.

Heating module 120 may be used to heat liquids. In some embodiments, heating module 120 may include a heating device. The heating device may refer to a component capable of heating the liquid and/or the liquid storage tank. In some embodiments, the heating module 120 may include a heating element (eg, a heating base) that directly heats the reservoir. For example, the heating module 120 may include a heating base disposed at the bottom of the liquid storage tank, and the heating base can directly heat the liquid storage tank. In some embodiments, the heating module 120 may also include heating elements (for example, heating tubes, heating wires, heating rods, etc.) that directly heat the liquid in the liquid storage tank. For example, the heating module 120 may include a heating rod disposed in the liquid storage tank, and the heating rod can directly heat the liquid in the liquid storage tank.

In some embodiments, in order to heat the liquid in the liquid storage tank more uniformly, the heating module 120 may include a circulation pipeline. In some embodiments, the circulation pipeline may include a pipeline connected between the liquid storage module 110 and the host computer. In some embodiments, the circulation pipeline may also include a pipeline provided in the host machine. In some embodiments, the heating module 120 may be disposed in the host, and the circulation pipeline of the heating module 120 may serve as the liquid circulation system of the host. The circulation pipeline of the heating module 120 and the liquid circulation system of the liquid storage module 110 together form a large circulation system of the cooking device 100 . In some embodiments, when the heating module 120 includes a circulation pipeline, the heating device of the heating module 120 may be a heating tube provided in the circulation pipeline. When the liquid flows through the heating tube in the circulation pipeline, the heating tube generates heat and transfers heat. To the liquid, the liquid then brings the heat back to the liquid storage tank. The liquid in the liquid storage tank circulates between the circulation pipeline and the liquid storage tank to heat the liquid in the liquid storage tank. Specifically, one end of the circulation line (which can also be called the liquid inlet side) is connected to the outlet of the liquid storage tank, and the other end of the circulation line (which can also be called the liquid outlet side) is connected to the inlet of the liquid storage tank. The liquid in the liquid storage tank flows into the circulation pipe from the outlet of the liquid storage tank through the liquid inlet side of the circulation pipe, and flows back to the liquid storage tank from the liquid outlet side of the circulation pipe through the inlet of the liquid storage tank, thereby Realize the circulating flow of liquid in the liquid storage tank. In some embodiments, when the heating module 120 includes a circulation pipeline, the heating device of the heating module 120 may also be a heating element disposed in the circulation pipeline. In some embodiments, the heating device can directly heat the liquid in the circulation pipeline. Some pipes in the circulation pipeline are heating pipes. During the circulation flow process, the liquid located in the heating pipe section is always heated, and The heat is brought back to the liquid storage tank under the action of circulating flow. In some embodiments, the heating device can also heat the liquid in the circulation pipe by heating the pipe wall of the circulation pipe. The heating device can be on the pipe wall of a certain part of the circulation pipe. A heat sink is provided, and the heat emitted by the heat sink is transferred to the liquid in the pipe through the pipe.

The liquid is heated through the circulation pipeline. After the heated liquid flows back to the liquid storage tank, it can fully exchange heat with the liquid in the liquid storage tank. The liquid can heat the heating module 120 during the process of circulating flow and heat exchange. The power (ie, the heat generated by the heating module 120) is evenly released into the liquid, thereby improving the uniformity of the temperature of the liquid in the liquid storage tank.

In some embodiments, the heating module 120 and the processing control module 130 may be communicatively connected to realize the transmission of information instructions between the processing control module 130 and the heating module 120 . The information instructions here may include, but are not limited to, control instructions (eg, start instructions, stop instructions of the heating device, etc.), data instructions (eg, heating power of the heating device), etc.

In some embodiments, when the heating module 120 heats the liquid, the heating power of the heating device can be adjusted to achieve precise control of the temperature of the liquid. For example, when the heating power of the heating device is set to a large value, the temperature of the liquid will rise faster; when the heating power of the heating device is set to a small value, the temperature of the liquid will rise slowly. In some embodiments, the heating method of the liquid may be that the heating device first uses a full-power heating method to heat the liquid, and when the liquid reaches or approaches a preset temperature, the heating device stops heating. After stopping heating, the temperature of the liquid will drop. When the liquid temperature is lower than the preset temperature and exceeds the threshold, the heating device will heat again. When heating is carried out by using this heating method that stops heating when reaching temperature (reaching or approaching the preset temperature) and starts heating at low temperature (below the preset temperature and exceeds the threshold), the heat is transferred to the liquid when the low temperature starts to heat. Stopping the transfer of heat to the liquid during the heating stage will cause a larger gap in the heat received by the liquid during the cooking state, resulting in larger temperature fluctuations of the liquid.

In some embodiments, when the liquid heats up from the current temperature to the preset temperature (which can be called the heating stage), the heating device may not stop heating, but use another heating power to continue heating so that the liquid temperature can Maintain at the preset temperature (which can be called the constant temperature stage). Among them, the other smaller heating power refers to the heating power smaller than that of the heating stage. In some embodiments, when the heating power of the heating device is small, the temperature of the liquid may remain unchanged (or decrease). This is because the liquid will spontaneously dissipate heat when it is in the environmental space, and the heat applied by the heating device to the liquid is equal to (or less than) the heat dissipated by the liquid, the temperature of the liquid may not change (or the temperature may decrease), that is, the temperature of the liquid may be maintained at the preset temperature. Therefore, the heating power of the heating device can be reasonably set and adjusted according to the liquid temperature requirements. For example, in some embodiments, at the beginning of the cooking process, the heating power of the heating device can be set to a larger value, and the heating device heats the liquid at the first power (for example, full power). When the temperature of the liquid reaches the preset temperature , the heating power of the heating device can be adjusted down so that the heating device performs heating with the second power (for example, maintaining power).

In some embodiments, the heating device heats liquids in different stages (e.g., heating stage, constant temperature stage) with different powers (e.g., constant power or maintenance power), which can cause the temperature fluctuations of the liquids in different stages to be different. Thus, the cooking requirements of the cooking device 100 are met. For example, when the heating device maintains power to heat the liquid during the constant temperature stage, the difference in heat received by the liquid in the liquid storage module 110 at different times can be smaller, thereby making the temperature fluctuation of the liquid smaller. For another example, in the temperature-raising stage, the heating device heats the liquid at full power, which allows the liquid to heat up quickly. At the same time, during the constant temperature stage, the heating device continues to heat the liquid, which can ensure that the heating device can continue to transfer heat to the liquid, thereby improving the uniformity of the temperature of the liquid in the liquid storage tank.

In some embodiments, the heating device may have a first heating mode and a second heating mode. When the heating device is in different heating modes, the heating power of the heating device is different. In some embodiments, when the heating device is in the first heating mode, the heating device can heat the liquid in the liquid storage tank with constant power; when the heating device is in the second heating mode, the heating device can heat the liquid in the liquid storage tank with maintaining power. The liquid is heated; the heating device can switch the cooking device 100 between the first heating mode and the second heating mode according to the temperature of the liquid in the liquid storage tank. In some embodiments, when the temperature of the liquid in the liquid storage tank does not reach the preset temperature, the heating mode of the heating device can be set to the first heating mode; when the temperature of the liquid reaches the preset temperature, the processing control module 130 can control the heating of the heating device. The mode is switched from the first heating mode to the second heating mode.

The process control module 130 may be connected to other modules in the cooking device 100 . In some embodiments, the processing control module 130 can control the operating status of other modules in the cooking device 100 (eg, the heating module 120, the detection module 140, the information input/output module 150). For example, the process control module 130 may send control instructions to the heating module 120 to control the heating module 120 . In some embodiments, the process control module 130 may control the operating status of the heating module 120 . The working status of the heating module 120 may include, but is not limited to, starting or stopping the heating device, the heating power of the heating module 120, etc. For example, the process control module 130 may send a start instruction (or a stop instruction) to the heating module 120 to cause the heating module 120 to start (or stop) heating. In some embodiments, the process control module 130 may also send control instructions to the heating module 120 to control the heating power of the heating module 120 . For example, the process control module 130 may send a power adjustment instruction to the heating module 120 to switch the heating mode of the heating module 120 between the first heating mode and the second heating mode. In some embodiments, the process control module 130 may send a control instruction to the heating module 120 to start the circulation line of the heating module 120 (ie, start liquid circulation). The large circulation system of the cooking device 100 can be started before the heating module 120 starts heating to prevent the heating device from dry burning.

In some embodiments, the processing control module 130 may also be used to control the working state of the cooking device 100 . For example, the processing control module 130 may send a start instruction (or stop instruction) to the cooking device 100 to put the cooking device 100 in a start (or stop) cooking state. In some embodiments, the process control module 130 may also be used to control the operating time of the cooking device 100 . For example, when the working time of the cooking device 100 reaches the preset working time, the processing control module 130 may send a control instruction to the cooking device 100 to shut down the cooking device 100 to avoid excessive cooking time.

In some embodiments, the processing control module 130 may be used to control data communications between various modules of the cooking device 100 . For example, processing control module 130 may control access to memory 160 by other modules. In some embodiments, the processing control module 130 may process data from other modules of the cooking device 100 (eg, detection module 140, information input/output module 150). For example, the processing control module 130 may process the liquid temperature detected by the temperature sensor in the detection module 140 . In some embodiments, the data processed by the processing control module 130 may be stored in the memory 160 . In some embodiments, processing control module 130 may also process instructions or operations from information input/output module 150.

The detection module 140 may be used to detect information related to the cooking device 100 . The information related to the cooking device 100 may be information related to various modules of the cooking device 100 and/or information related to the cooking process of the cooking device 100 . In some embodiments, information related to the cooking device 100 may include, but is not limited to, one or more of temperature information, location information, status information, time information, input/output information, and the like. The temperature information may be the temperature information of the liquid in the liquid storage module 110 . The position information may be position information of components (eg, liquid storage tanks, circulation lines, etc.) included in each module of the cooking device 100 . The status information may be communication status information, working status information, etc. of each module of the cooking device 100 . The time information may be time-related parameter information, such as the working time of the cooking device 100, the preset time of the cooking process, etc. The input/output module information may be information input by the user (or information obtained by the cooking device 100 from other devices) and information output by the cooking device 100 through the display device.

In some embodiments, the detection module 140 and the processing control module 130 may be communicatively connected. The information related to the cooking device 100 detected by the detection module 140 may be passed to the processing control module 130 for data processing.

In some embodiments, detection module 140 may include a sensor. Sensors may detect information related to the cooking device 100 . For example, a temperature sensor can detect the temperature information of the liquid in the tank. For another example, a position sensor can detect the position information of the object being measured. The information related to the cooking device 100 detected by the sensor can be transmitted to the processing control module 130 and data processed, so that the processing control module 130 can better control the operating status of other modules.

In some embodiments, detection module 140 may include a temperature sensor. The processing control module 130 may control the working state of the heating module 120 (eg, the working mode of the heating device, the heating mode) according to the liquid temperature detected by the temperature sensor. In some embodiments, the detection module 140 can detect the temperature values of the liquid at different times, the processing control module 130 analyzes and processes the temperature values to obtain the temperature information of the liquid, and sends the temperature information to the heating module 120 based on the obtained temperature information of the liquid. corresponding control instructions. For example, the processing control module 130 may control the heating device to perform heating in the first heating mode or the second heating mode according to the analysis results. The temperature information of the liquid may be information reflecting the temperature change of the liquid. In some embodiments, the temperature information of the liquid may include the current temperature of the liquid, the temperature difference between different moments, the rate of change of the liquid temperature, etc. In some embodiments, the rate of change of liquid temperature may be the time it takes for the temperature to rise by a certain degree (eg, one degree, two degrees, etc.). In some embodiments, the change rate of the liquid temperature may also be the degree of rise/fall of the liquid temperature within a certain time (eg, 2 seconds, 5 seconds, etc.).

In some embodiments, the detection module 140 can detect the temperature of the liquid during the heating phase. The heating stage may be a stage before the liquid is heated to the target temperature. The target temperature can be a preset liquid temperature. The size of the target temperature can be set according to the cooking requirements (for example, the requirements for cooking ingredients). In some embodiments, when the liquid is in the heating stage, the detection module 140 can detect the temperature of the liquid in real time, and the processing control module 130 can adaptively adjust the heating power of the heating module 120 based on the liquid temperature information detected by the detection module 140 . For example, when the liquid temperature value detected by the temperature sensor is lower than the target temperature, the processing control module 130 may control the heating mode of the heating device in the first heating mode, so that the heating device heats the liquid with constant power.

In some embodiments, the detection module 140 can also detect the temperature of the liquid in the constant temperature stage. The isothermal phase can be the phase after the liquid reaches the target temperature. In some embodiments, the liquid temperature in the isothermal phase can be maintained at the target temperature (or a temperature near it). In some embodiments, the liquid temperature in the constant temperature stage may also fluctuate up and down at the target temperature (or a temperature near it). In some embodiments, when the liquid temperature value detected by the temperature sensor reaches the target temperature, the processing control module 130 may control the heating mode of the heating device in the second heating mode, so that the heating device heats the liquid with maintained power.

In some embodiments, detection module 140 may include a pressure sensor. The pressure sensor can detect the pressure value of the measured object. The objects to be measured here can be power devices (for example, water pumps), liquid storage tanks, circulation pipelines, etc. In some embodiments, the pressure sensor can detect the internal pressure of the power plant, the internal pressure of the pipeline through which the liquid flows, the hydraulic pressure in the liquid storage tank, etc. In some embodiments, the pressure sensor can also detect the presence status of the measured object (for example, a liquid tank or other accessory). For example, a pressure sensor can be used to detect whether the inside of a pipeline through which liquid flows is clogged, or whether a pipeline through which liquid flows through is leaking. In some embodiments, the pressure sensor may be a resistive strain gauge pressure sensor, a semiconductor strain gauge pressure sensor, a piezoresistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, a resonant pressure sensor, an optical fiber pressure sensor, a capacitive acceleration sensor. One or more types of sensors, etc.

In some embodiments, detection module 140 may include a position sensor. The position sensor can detect the position information of the object being measured. The objects to be measured here may include the liquid storage tank, the main machine, the connection structure (for example, circulation pipeline) between the liquid storage tank and the main machine, etc. In some embodiments, the position sensor may be a contact sensor that generates a signal when two objects are pressed into contact. For example, the position sensor can be a travel switch or a two-dimensional matrix position sensor. In some embodiments, the position sensor may also be a proximity sensor that generates a signal when two objects approach a preset distance. For example, the position sensor can be an electromagnetic, photoelectric, differential transformer, eddy current, capacitive, reed switch, ultrasonic, Hall, or other proximity sensor. In some embodiments, a photoelectric position sensor may be used to detect whether the liquid storage tank is placed at a preset position. In some embodiments, a photoelectric position sensor may be used to detect the position status of the connection structure between the host computer and the liquid storage tank. In some embodiments, the detection module 140 may also include more sensors of different types, such as flow sensors, flow rate sensors, etc.

The information input/output module 150 may be used to input or output signals, data or information. The information input/output module 150 can connect or communicate with other modules in the cooking device 100 . Other modules in the cooking device 100 can be connected or communicated through the information input/output module 150. The information input/output module 150 can be a wired USB interface, a serial communication interface, a parallel communication port, or a wireless Bluetooth, infrared, radio frequency identification (Radio-frequency identification, RFID), wireless LAN identification and security infrastructure ( Wlan Authentication and Privacy Infrastructure (WAPI), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), etc., or any combination thereof. In some embodiments, the information input/output module 150 can connect to a network and obtain information through the network. For example, the information input/output module 150 can obtain the liquid temperature detected by the temperature sensor from the detection module 140 through the network and output the liquid temperature. In some embodiments, the information input/output module 150 may include VCC, GND, RS-232, RS-485 (eg, RS485-A, RS485-B), universal network interface, etc., or any combination thereof. In some embodiments, the information input/output module 150 may use one or more encoding methods to encode the transmitted signal. The coding method may include phase coding, non-return-to-zero coding, differential Manchester coding, etc., or any combination thereof.

The memory 160 may store data/information of the cooking device 100 . In some embodiments, the memory 160 may store preset information related to the cooking device 100, such as a target temperature of the liquid, a preset cooking time, etc. In some embodiments, the memory 160 may also store data/information used to determine cooking parameters during the cooking process. For example, the memory 160 may store temperature thresholds (eg, a first temperature threshold, a second temperature threshold) used to determine a change trend of a liquid temperature (eg, a maintenance temperature) in a constant temperature phase. For another example, the memory 160 may also store a first correspondence table used to determine the maintenance power of the heating device in the constant temperature phase, and a second correspondence table used to determine the liquid heating rate in the temperature rising phase. In some embodiments, memory 160 may include high-speed random access memory, non-volatile memory, or the like. Non-volatile memory may be one or more disk storage devices, flash memory devices, etc., or other non-volatile solid-state storage devices. In some embodiments, memory 160 may also include memory remote from the processor, such as network-attached memory accessed via radio frequency circuitry or external ports of cooking device 100 and a communications network. In some embodiments, the communication network may be the Internet, an intranet, a local area network (LAN), a wide area network (WLAN), a storage area network (SAN), etc., or a combination thereof.

It should be noted that the above description of the cooking device is only for convenience of description and does not limit one or more embodiments of this specification to the scope of the illustrated embodiments. It can be understood that for those skilled in the art, after understanding the principle of the system, various modifications or changes may be made to each module without departing from this principle. However, these modifications and changes are still subject to the present invention. within the scope of the manual.

Figure 2 is an exemplary hardware and/or software example diagram of a cooking device according to some embodiments of the present specification. In some embodiments, the cooking device 100 may include a control component 210 , a processor 220 , sensors 230 , an input/output component 240 , a display component 250 , a power supply component 260 , and an internal communication bus 270 .

Control component 210 may be used to control data communications between various components of cooking device 100 . For example, control component 210 may control other components' access to memory (eg, memory 160). In some embodiments, control component 210 may be provided in a process control module (eg, process control module 130) of cooking device 100. In some embodiments, control component 210 may include a peripheral device interface. The peripheral device interface may be used to connect the control component 210 and peripheral devices to implement communication between the control component 210 and the peripheral devices.

The processor 220 may process data from other modules/components in the cooking device 100 . For example, the processor may perform data processing on relevant data detected by the sensor in the detection module 140 (for example, the liquid temperature detected by the temperature sensor, the position data of the circulation pipeline detected by the position sensor). In some embodiments, the process control module (eg, process control module 130) of the cooking device 100 may be the processor 220. In some embodiments, processor 220 may include a microcontroller, a microprocessor, a reduced instruction set computer (RISC), an application specific integrated circuit (ASIC), an application specific instruction set processor (ASIP), a central processing unit (CPU) , graphics processing unit (GPU), physical processing unit (PPU), microcontroller unit, digital signal processor (DSP), field programmable gate array (FPGA), advanced reduced instruction set computer (ARM), programmable logic device and any circuits, processors, etc. capable of performing one or more functions, or any combination thereof.

The sensor 230 may be used to detect information of a measured object (eg, liquid, liquid storage tank, circulation pipeline, etc.). The sensor 230 may be provided in a detection module (eg, the detection module 140) of the cooking device 100. In some embodiments, sensors 230 may include one or more different types of sensors, such as temperature sensors, pressure sensors, position sensors, etc. Different types of sensors can detect types of information corresponding to different measured objects (for example, temperature information, pressure information, position information, etc.). The information of the measured object detected by the sensor can be converted into an electrical signal that can be detected and sent to the processor 220 for processing. The results of the data processing may be passed to the control component 210 so that the control component 210 can control the operating status of other modules/components of the cooking device 100 according to the processing results. More information about the sensor can be found in Figure 1 and its associated description.

Input/output components (I/O components) 240 may be used to input or output signals, data, or information. The input/output component 240 may be provided in an information input/output module (eg, information input/output module 150) of the cooking device 100. The input/output component 240 may provide an interface between the input/output peripherals of the cooking device 100 and the peripheral device interface of the control component 210 . In some embodiments, input/output peripherals may be display components 250, position sensors, lighting components, and other input/control devices. In some embodiments, I/O component 240 may include controllers corresponding to input/output peripherals, such as display controllers, position sensor controllers, lighting controllers, and one or more other input controllers. In some embodiments, one or more controllers in I/O component 240 may receive/send electrical signals from/to input/output peripherals. Wherein, one or more other input controllers may receive/send electrical signals from/to other input/control devices. In some embodiments, other input/control devices may include physical buttons (eg, push buttons, rocker buttons, or touch buttons, etc.), slider switches, joysticks, and the like. In some embodiments, other input/control devices may also include physical buttons for emergency stopping of cooking. In some embodiments, other input/control devices may also include self-locking keys, such as child locks and other keys that prevent misoperation.

Display component 250 may display information/data of cooking device 100 . For example, the display component 250 may display recipe information of the cooking device 100 . As another example, the display component 250 may display temperature information (eg, target temperature, maintenance temperature) of the liquid in the cooking device 100 . In some embodiments, display component 250 may include a display screen. The display screen can provide an output interface between the cooking device 100 and the user, and the display screen can display electronic files on the screen through a specific transmission device and then reflect them to human eyes. In some embodiments, the display screen may include a cathode ray tube display (CRT), a plasma display (PDP), a liquid crystal display (LCD), or the like. In some embodiments, display assembly 250 may also include a touch screen, which may provide an input/output interface between device 500 and a user. In some embodiments, the touch screen may include a resistive screen, a surface acoustic wave screen, an infrared touch screen, an optical touch screen, a capacitive screen or a nanofilm or other inductive display device.

The power supply assembly 260 may provide power to various components of the cooking device 100 (eg, display assembly 250, lighting assembly, etc.). In some embodiments, power component 260 may include a power management system, one or more power sources (eg, battery or alternating current (AC)), charging system, power failure detection circuitry, power converter or inverter, power status indication device (e.g., light emitting diode (LED)), etc. In some embodiments, power component 260 may also include any other components associated with the generation, management, and distribution of electrical energy.

The internal communication bus 270 enables data communication between components in the cooking device 100 . For example, processor 220 may send data to other hardware such as memory 160 or input/output components 240 via internal communication bus 270 . In some embodiments, the internal communication bus 270 may be an Industry Standard (ISA) bus, an Extended Industry Standard (EISA) bus, a Video Electronics Standard (VESA) bus, a Peripheral Component Interconnect Standard (PCI) bus, or the like. In some embodiments, the internal communication bus 270 can be used to connect various modules in the liquid heating control system 500 shown in FIG. 5 (eg, the temperature increasing module 510, the constant temperature module 520).

In some embodiments, the cooking device 100 may also include other hardware/software devices, such as lighting components, touch components, tactile feedback components, etc. Light components can be visual components. In some embodiments, the lighting assembly may include visual elements for prompting the cooking status and equipment status of the cooking device 100 . In some embodiments, the lighting assembly may also include indicator lights or fault status alarm lights for indicating the status of components such as power supply, CPU, liquid flow through pipelines, heating (or cooling), etc. In some embodiments, the lighting assembly may also include a visual lighting element used to facilitate observation of the structure or component status of the cooking device 100 when the ambient light is poor. The touch component may detect user contact with the display component 250 or other touch-sensitive device (eg, touch button, touch pad).

The tactile feedback component may include software components for generating instructions in response to user interaction with the cooking device 100 . In some embodiments, the haptic feedback component may include one or more tactile output generators capable of generating tactile output at one or more locations of the cooking device 100 .

It should be noted that the hardware and/or software devices included in the cooking device 100 are only for convenience of description and do not limit this description to the scope of the embodiments. It can be understood that for those skilled in the art, after understanding the principle of the system, it is possible to add, delete or combine various hardware and/or software without departing from this principle, for example, the cooking device 100 A text input component for inputting cooking parameters (eg, target temperature, heating power, temperature threshold, etc.) may be included, however these changes are within the scope of this specification.

In some embodiments, when the cooking device 100 uses the heating module 120 to heat the liquid, due to a certain hysteresis in the heating system, the absolute temperature of the liquid in the liquid storage tank will fluctuate greatly. At the same time, since the heating device uses continuous high power for heating, the heat reaching the liquid storage tank will be uneven, resulting in uneven temperature of the liquid in the liquid storage tank. In order to solve the problems of uneven liquid temperature and large temperature fluctuations during the heating process of liquid, one or more embodiments of this specification provide a liquid heating control method. For details, see Figures 2-3 and related descriptions.

Figure 3 is an exemplary flowchart of a liquid heating control method according to some embodiments of this specification. As shown in Figure 3, process 300 may include:

Step 310: Obtain the target temperature.

In some embodiments, this step may be performed by processor 220. In some embodiments, processor 220 may obtain a target temperature of liquid in a cooking device (eg, cooking device 100). In some embodiments, the target temperature may be the heating temperature of the liquid in the cooking device. For example, when the cooking device 100 is cooking a certain food, it needs to use a 60-degree liquid to continuously heat the food in the liquid for 2 hours. Among them, the target temperature of the liquid is 60 degrees. In some embodiments, the target temperature may be a preset liquid temperature. The size of the target temperature can be set according to the cooking requirements (for example, the requirements for cooking ingredients). For example, if the ingredients to be cooked in the cooking device 100 are different, the target temperature of the liquid in the liquid storage tank of the cooking device 100 is different. In some embodiments, the target temperature can be obtained through an operator's input in the terminal device. In some embodiments, the terminal device may be an operation interface provided on the cooking device 100 (eg, host). In some embodiments, the terminal device may also be an operation interface on a mobile device (eg, a mobile phone) that is communicatively connected to the cooking device 100 . In some embodiments, the information input by the operator on the terminal device may include directly inputting the value of the target temperature. In some embodiments, the information input by the operator on the terminal device may also include other information that can correspond to the target temperature. For example, the operator can select his favorite recipe on the terminal device, and based on the selected recipe, the processor can automatically determine the corresponding target temperature. For another example, the operator can select the type of ingredients to be cooked and the desired taste on the terminal device. The processor can automatically determine the corresponding target temperature based on the type and taste of the ingredients.

Step 320: Control the heating device to heat the liquid in the cooking device according to the heating command.

In some embodiments, this step may be performed by control component 210. The control component 210 may send a heating instruction to the heating device, so that the heating device heats the liquid in the cooking device 100 .

In some embodiments, the heating instruction may be a control instruction that controls the heating device to perform heating. The heating instruction may include activation information of the heating device and heating power information of the heating device. For example, the control component 210 may send activation information of the heating device to the heating device to cause the heating device to heat the liquid. At the same time, the control component 210 can also send heating power information to the heating device, so that the heating device heats the liquid with a specific heating power. In some embodiments, the control component 210 may control the heating mode of the heating device to be in the first heating mode, so that the heating device heats the liquid at full power. Full power may refer to 100% of the rated power of the heating device. When the heating device heats at rated power, it is said that the heating device heats at full power. A heating method in which the heating device performs heating at a lower power than the rated power can also be understood as a heating device that does not perform heating at full power. When the heating device heats the liquid at full power, the temperature of the liquid in the liquid storage tank can gradually rise relatively quickly.

In some embodiments, when the heating device heats the liquid, the heating power of the heating device may be constant or variable. In some embodiments, the heating device can heat the liquid with a constant heating power. In some embodiments, the heating power can also be adjusted in real time according to the temperature change of the liquid during the heating stage to accurately control the temperature of the liquid. In some embodiments, the heating power of the heating device can be adjusted according to the user's needs. Taking a cooking device as an example, the user needs the liquid temperature to rise slowly to ensure the taste and freshness of the ingredients. In this case, the heating power can be set smaller to meet the user's cooking needs.

In some embodiments, the heating device can heat the liquid in the cooking device at a constant power. For example, the heating device can heat liquid in the cooking device at full power. Heating with constant power when the liquid is in the heating stage can ensure that the variables of the liquid during the heating process are single. That is, the variables of the liquid during the heating process can only include the heating rate of the liquid, thus making it easy to determine the constant temperature stage based on the heating rate of the liquid. Cooling power.

In some embodiments, before starting the cooking process, the cooking device 100 can pre-add liquid into the liquid storage tank of the liquid storage module 110, and then start the heating device after the liquid is added, and the heating device starts to heat the liquid. In some embodiments, when the cooking device 100 includes a circulation pipeline, the liquid can be circulated between the liquid storage tank and the circulation pipeline before starting the heating device, thereby preventing the heating device from dry burning.

Step 330: When the liquid reaches the target temperature, the heating device is controlled to maintain power for heating.

In some embodiments, this step may be performed by control component 210 and processor 220. The control component 210 can send control instructions to the heating device to control the heating device to maintain power to heat the liquid. In some embodiments, the maintenance power may be the heating power of the heating device when maintaining the liquid temperature at the target temperature (and temperatures near it). When the heating device performs heating at the maintenance power, the maintenance power can maintain the temperature of the liquid at the target temperature. In some embodiments, the maintenance power of the heating device may be varied. The size of the maintenance power can be adjusted according to the temperature and/or temperature changes of the liquid in the liquid storage tank. In some embodiments, when the liquid reaches the target temperature, the control component 210 may control the heating mode of the heating device to be in the second heating mode, so that the heating device heats the liquid with maintained power.

In some embodiments, when the liquid reaches the target temperature, if the heating device stops heating the liquid, the liquid will lower its temperature due to its own heat dissipation. Therefore, the heating device needs to maintain power to continue heating the liquid, so that The liquid temperature is maintained at the target temperature. When the heating device uses maintenance power to heat the liquid, the heat provided by the maintenance power to the liquid is equal or approximately equal to the heat emitted by the liquid itself, which can keep the heat of the liquid in a dynamic balance and ensure that the liquid temperature is in a stable state. This can be achieved The liquid temperature can be maintained at the target temperature.

In some embodiments, the liquid reaching the target temperature may include the liquid temperature reaching or substantially reaching the target temperature. Wherein, basically reaching the target temperature may mean that the liquid temperature is within the temperature threshold before reaching the target temperature, and it is deemed to be basically reached at this time. In some embodiments, the temperature threshold may be any value within 0.1% of the target temperature. In some embodiments, the temperature threshold may also be any temperature value less than 0.5 degrees. For example, the temperature threshold can be set to 0.2 degrees. At this time, when the liquid temperature reaches within 0.2 degrees lower than the target temperature, the liquid can be regarded as reaching the target temperature.

In some embodiments, the maintenance power may be determined based on the heating rate of the liquid before it is heated to the target temperature (also called the heating stage). In some embodiments, the processor 220 may obtain the heating rate of the liquid during the heating phase. The heating rate can reflect the relationship between the liquid temperature and the heating time during the heating stage. In some embodiments, the heating rate of the liquid during the heating phase may include the time required for the temperature of the liquid to rise by a certain degree (eg, 1 degree, 2 degrees, etc.). For example, the heating rate could be the time it takes for the temperature of a liquid to rise 1 degree. In some embodiments, the heating rate may also refer to the total time it takes for the liquid temperature to rise to the target temperature. In some embodiments, the heating rate of the liquid during the heating stage may also include the degree of temperature rise of the liquid within a certain time (eg, 1 second, 2 seconds, etc.). For example, the heating rate may be the number of degrees the liquid temperature rises in 1 second.

In some embodiments, the processor 220 may determine the heating rate of the liquid in the warming stage based on the temperature information of the liquid detected by the detection module 140 (eg, a temperature sensor). In some embodiments, the temperature sensor can detect the liquid temperature corresponding to the liquid at different times. The processor 220 analyzes the liquid temperature at each time, and obtains the heating rate of the liquid during the heating stage based on the analysis results. For example, the processor 220 can obtain the first temperature of the liquid detected by the temperature sensor at the first moment, and the second temperature of the liquid detected by the temperature sensor at the second moment, according to the first moment, the first temperature, the second moment and the second temperature to determine the heating rate. The heating rate may be expressed as a ratio between the temperature difference between the second temperature and the first temperature and the time difference between the second moment and the first moment. In some embodiments, further description of how the heating rate is determined can be found elsewhere in this specification.

In some embodiments, the processor 220 may further determine the maintenance power based on the heating rate. In some embodiments, the processor 220 can determine the heat dissipation power of the liquid in a stage after the temperature rise stage (that is, the constant temperature stage) based on the heating rate, and then determine the maintenance power based on the heat dissipation power. The heat dissipation power can be used to characterize the amount of heat dissipated by a liquid in the environmental space. In some embodiments, the heat dissipation power of the liquid in the constant temperature stage can be determined based on the heating rate of the liquid in the temperature rising stage. In some embodiments, the heat dissipation power of the liquid in the constant temperature stage can be positively correlated with the change rate of the liquid in the temperature rising stage (for example, the time required for the liquid temperature to rise by 1 degree). For example, the longer the time it takes for the liquid temperature to rise by 1 degree during the heating stage, the greater the heat dissipation power of the liquid during the constant temperature stage; the shorter the time it takes for the liquid temperature to rise by 1 degree during the heating stage, the smaller the heat dissipation power of the liquid during the constant temperature stage. In some embodiments, the processor 220 may also determine the heat dissipation power of the liquid in the constant temperature stage based on the heating rate in the temperature rising stage and the target temperature of the liquid. In some embodiments, the heating rate of the liquid during the heating stage can determine parameters such as the volume of the liquid, the heating power during the heating stage, and the ambient temperature. The target temperature of the liquid can be directly proportional to the heat dissipation power of the liquid. The higher the target temperature of the liquid, the greater the heat dissipation power of the liquid; the lower the target temperature of the liquid, the smaller the heat dissipation power of the liquid.

In some embodiments, the processor 220 may control the heating power of the heating device according to a control algorithm. For example, the processor 220 may control the heating device to switch between the first heating mode and the second heating mode according to the control algorithm. The relevant content of the control algorithm is described below.

In some embodiments, the processor 220 can switch the heating mode of the heating device according to the switching node in the control algorithm. The switching node may refer to the temperature difference node of the liquid temperature relative to the target temperature in the heating process (including the temperature rising stage and the constant temperature stage). For example, the switching node may be a first temperature threshold and/or a second temperature threshold of the target temperature. In some embodiments, the target temperature may set a first temperature threshold, which refers to a temperature value that is a certain degree (eg, 0.2 degrees, 0.4 degrees, 0.6 degrees, etc.) lower than the target temperature. In this embodiment, the first temperature threshold can be set to be 0.2° lower than the target temperature. In the heating phase, when the liquid temperature rises to the first temperature threshold, for example, when it is 0.2° lower than the target temperature, the processor 220 may convert the constant power of the heating device (which may be full power) into the PID control algorithm control power. . In some embodiments, the target temperature may also set a second temperature threshold. The second temperature threshold refers to a temperature value that is a certain degree (eg, 0.8 degrees, 1 degree, 2 degrees, etc.) lower than the target temperature. In this embodiment, the second temperature threshold can be set to be 1° lower than the target temperature. In the constant temperature phase, when the liquid temperature drops to the second temperature threshold, for example, 1° lower than the target temperature, the processor 220 may control the heating device to switch back to constant power heating from the PID control algorithm. In some embodiments, the second temperature threshold may be lower than the first temperature threshold, thereby preventing the algorithm from constantly switching due to small temperature fluctuations near the first temperature threshold during the constant temperature process. In some embodiments, the heating power in the constant temperature stage can be determined according to the following method: in the temperature rising stage, the energy consumption provided by the constant power of the heating device can be divided into two parts, one part allows the liquid to heat up, and the other part is due to the heat dissipation of the liquid. And lost. In the early stage when the liquid temperature begins to rise, it can be assumed that the liquid temperature is closest to room temperature (that is, the ambient temperature), and the liquid heat dissipation is the least, almost 0. At this time, it can be understood that the constant power is completely used to heat the liquid. The first heating rate V1 of the liquid temperature is measured at the time t1 when the heating starts, and the first heating rate V1 is the maximum heating rate during the heating process. The temperature is increased from room temperature, and the second temperature increase rate is measured as V2 when the liquid temperature reaches the first temperature threshold of the target temperature (for example, 0.2 degrees lower than the target temperature). Since when the liquid temperature reaches the first temperature threshold of the target temperature (for example, 0.2 degrees lower than the target temperature), part of the energy provided by the constant power is consumed due to heat dissipation of the liquid, therefore, the second temperature rise rate V2 is smaller than the first temperature rise rate Rate V1. In some embodiments, the maintenance power of the constant temperature stage may be determined according to the first heating rate and the second heating rate. For example, the initial power of the maintenance power of the constant temperature stage may be determined according to the first heating rate and the second heating rate. For another example, the duty cycle of the heating device in the constant temperature stage may be determined based on the first heating rate and the second heating rate.

In some embodiments, the percentage of (V1-V2)/V1 can be used to measure the heat dissipation power of the liquid. By adjusting the duty cycle of the motor of the heating device to be equal to (V1-V2)/V1, it can be ensured that the liquid can maintain a constant temperature. In some embodiments, the heating power of the heating device during the constant temperature phase can be compensated and controlled using a control algorithm. In some embodiments, the heating device has a rated power, and the maintenance power of the constant temperature stage can be determined based on the rated power, the first heating rate V1 and the second heating rate V2. For example, in the constant temperature stage, the initial duty cycle of the heating device can be set to (V1-V2)/V1. At this time, the initial power of the heating device in the constant temperature stage = rated power * (V1-V2)/V1, and then compensation control is performed through the PID control algorithm. In some embodiments, temperature compensation can be performed based on the current actual temperature difference and the historical temperature difference integral. The current actual temperature difference refers to the difference between the current temperature of the liquid and the target temperature. The historical temperature difference integral may refer to the integral of the actual temperature difference at the beginning of the constant temperature phase.

In some embodiments, the processor 220 may also determine the heat dissipation power of the liquid based on the heating duration of the heating stage. The heating time of the heating phase can refer to the time it takes for the liquid to start heating until the liquid temperature reaches the target temperature. In some embodiments, the heat dissipation power of the liquid in the constant temperature stage can be positively correlated with the heating time of the liquid in the temperature rising stage. For example, the longer the heating time of the liquid in the heating stage, the greater the heat dissipation power of the liquid in the constant temperature stage; the shorter the heating time of the liquid in the heating stage, the smaller the heat dissipation power of the liquid in the constant temperature stage. In some embodiments, the processor 220 may determine the maintenance power based on the heat dissipation power of the liquid during the constant temperature phase. In some embodiments, the control component 210 can control the maintenance power of the heating device to be equal to the heat dissipation power of the liquid in the constant temperature stage. When the maintenance power of the heating device is equal to the heat dissipation power of the liquid, the heat dissipated by the liquid is equal to the heat applied to the liquid by the maintenance power, which can keep the heat of the liquid in dynamic balance, thereby maintaining the liquid temperature at the target temperature, thereby ensuring that the liquid Temperature stability.

In some embodiments, the maintenance power can also be determined based on a table lookup method. In some embodiments, the maintenance power may be determined according to a preset first correspondence table and the heating rate. The first correspondence table may reflect the correspondence between the heating rate and the maintenance power. In some embodiments, the first correspondence table may be a correspondence table between a preset heating rate and a maintenance power. After the processor 220 obtains the heating rate in the temperature rising stage, it can find the maintenance power corresponding to the heating rate in the preset first correspondence table according to the value of the heating rate. In some embodiments, the preset first correspondence table can be obtained through testing.

In some embodiments, the sustaining power may also be determined based on the heating rate, the volume of the liquid, and/or the ambient temperature. In some embodiments, the maintenance power of the heating device may be directly proportional to the heating rate of the liquid. The greater the heating rate of the liquid, the greater the maintenance power of the heating device; the smaller the heating rate of the liquid, the smaller the maintenance power of the heating device. In some embodiments, the heating rate here may refer to the first heating rate V1 of the liquid temperature measured at time t1 when the heating starts.

The volume of liquid may refer to the current volume of liquid in the liquid storage tank. In some embodiments, the volume of liquid may be different in different application scenarios. For example, in the cooking device 100, due to different cooking ingredients, the volume of liquid that needs to be added in the liquid storage tank is different. In some embodiments, the maintenance power of the heating device may be directly proportional to the volume of the liquid. The larger the volume of the liquid, the greater the maintenance power of the heating device; the smaller the volume of the liquid, the smaller the maintenance power of the heating device. In some embodiments, the volume of the liquid can affect the heating rate of the liquid, and the heating rate of the liquid can be used to characterize the volume of the liquid.

The ambient temperature may refer to the temperature within the space in which the cooking device 100 and/or the liquid storage tank is currently located. In some embodiments, ambient temperature may refer to room temperature. In some embodiments, the closer the ambient temperature is to the liquid temperature, the less heat flows between the liquid and the environment (for example, the less heat the liquid dissipates to the environment), the smaller the heat dissipation power of the liquid, and the liquid needs to maintain a stable temperature. The smaller the maintenance power required; the greater the gap between the ambient temperature and the liquid temperature, the more heat flows between the liquid and the environment (for example, the more heat the liquid dissipates to the environment), the greater the heat dissipation power of the liquid. The liquid requires more maintenance power to keep its temperature stable. In some embodiments, there may be a certain relationship between the maintenance power of the heating device and the ambient temperature. For example, under certain conditions with other parameters (such as liquid volume, target temperature, etc.), the closer the target temperature is to the ambient temperature, the smaller the maintenance power of the heating device; the greater the gap between the target temperature and the ambient temperature, the greater the maintenance power of the heating device. . In some embodiments, ambient temperature can affect the heating rate of the liquid, and the heating rate of the liquid can be used to characterize the ambient temperature.

In some embodiments, the maintenance power may also be determined based on the user's input power. The user can input the maintenance power through the terminal device (for example, the operation interface on the host computer or the operation interface on the mobile phone). For example, the user can input appropriate maintenance power according to the condition of the food material (for example, the degree of processing). In some embodiments, the user can input the first power and the second power through the terminal device. The first power is used as the heating power of the liquid in the temperature rising stage, and the second power is used as the heating power of the liquid in the constant temperature stage (that is, the second power is used as the heating power of the liquid in the constant temperature stage). power as sustaining power). In some embodiments, when the cooking process starts, the control component 210 can control the heating device to heat the liquid with the first power. When the temperature of the liquid rises to the target temperature, the control component 210 controls the heating power of the heating device to switch from the first power. to the second power, the heating device heats the liquid at the second power. That is, in the temperature rising stage, the heating device heats the liquid with the first power input by the user; in the constant temperature stage, the heating device heats the liquid with the second power input by the user. In some embodiments, the first power may be the rated power of the heating device. In some embodiments, the second power is less than the first power.

In some embodiments, during the constant temperature stage, the heating device performs heating at a maintenance power to maintain the temperature of the liquid in the liquid storage tank at the target temperature. In some embodiments, due to many reasons, the actual temperature of the liquid in the liquid storage tank may fluctuate during the constant temperature phase. In order to more accurately control the temperature of the liquid in the liquid storage tank so that the liquid can be maintained at the target temperature as much as possible, in some embodiments of this specification, the actual temperature of the liquid during the constant temperature stage is also detected, and the current temperature is adjusted based on the detection results. of sustaining power. See step 340 and step 350 for more description.

Step 340: Determine the change trend of the maintenance temperature in the stage after the liquid is heated to the target temperature (also called the constant temperature stage).

In some embodiments, this step may be performed by processor 220. In some embodiments, when the liquid is in a constant temperature stage, it is generally desired that the temperature of the liquid can be maintained at a target temperature so that the liquid can be maintained in a constant temperature state. In fact, since the liquid dissipates heat when it is in the environmental space, the actual temperature of the liquid changes relative to the target temperature, resulting in a temperature change trend. Therefore, it is necessary to judge the temperature change trend of the liquid, and then adjust the maintaining power of the liquid in the constant temperature stage according to the change trend of the liquid temperature to ensure the temperature stability of the liquid in the constant temperature stage.

In some embodiments, the maintenance temperature may refer to the actual temperature of the liquid during the isothermal phase. The change trend of the maintenance temperature may be the change of the maintenance temperature of the liquid relative to the target temperature within a preset time step (for example, 1 second). The change trend of maintaining the temperature can include a temperature increasing trend, a temperature decreasing trend, and a temperature unchanged. The temperature increase trend may refer to an increase in the maintenance temperature of the liquid relative to the target temperature within a preset time step. The temperature decreasing trend may refer to a decrease in the maintenance temperature of the liquid relative to the target temperature within a preset time step. The constant temperature may mean that the maintained temperature of the liquid does not change relative to the target temperature within a preset period of time. In some embodiments, the change trend of the maintenance temperature can be determined based on the relationship between the change value of the maintenance temperature within the preset time step and the preset amplitude threshold. If the change value of the maintenance temperature within the preset time step exceeds the preset amplitude threshold range, it can be considered that the maintenance temperature has a changing trend. Further, the changing trend of the maintaining temperature is determined as a temperature increasing trend/temperature decreasing trend according to the change of the maintaining temperature relative to the target temperature. If the change value of the maintenance temperature within the preset time step is within the preset amplitude threshold range, it can be considered that the maintenance temperature has no change trend. In this case, the maintenance temperature does not change relative to the target temperature. In some embodiments, when the maintenance temperature does not change relative to the target temperature, the maintenance temperature is the same or approximately the same as the target temperature. The maintenance temperature does not change relative to the target temperature, which may mean that the change amplitude of the liquid maintenance temperature relative to the target temperature is small within the preset time step (for example, within a preset amplitude threshold range). In some embodiments, the preset amplitude threshold can be set according to the user's actual needs and application scenarios. For example, if the need for accuracy in maintaining temperature is high, the preset amplitude threshold can be set smaller. On the contrary, if the demand for accuracy in maintaining temperature is higher, the preset amplitude threshold can be set larger. As an example only, the preset amplitude threshold may range from 0.3° to 2°. In some embodiments, the preset time step may be a preset time interval used to determine the change trend of the maintenance temperature, for example, 1 millisecond, 10 milliseconds, 100 milliseconds, etc.

In some embodiments, the change trend of the maintenance temperature can be determined based on the temperature sensor detecting the maintenance temperature value corresponding to at least two moments in the constant temperature phase of the liquid. In some embodiments, determining the change trend of the maintenance temperature of the liquid in the constant temperature phase may include: obtaining the temperature values corresponding to at least two moments of the liquid in the constant temperature phase, and determining the maintenance temperature based on the temperature values corresponding to the at least two moments. Trend. In some embodiments, a temperature sensor can be used to detect the temperature values corresponding to at least two moments in the constant temperature phase, and then determine the change trend of the maintenance temperature based on the temperature difference between the temperature values corresponding to adjacent moments in the at least two moments. In some embodiments, the time interval between two adjacent moments in at least two moments may range from 2 milliseconds to 10 milliseconds. In some embodiments, the time interval between two adjacent moments in at least two moments may range from 3 milliseconds to 10 milliseconds. In some embodiments, the time interval between two adjacent moments in at least two moments may range from 5 millimeters to 7 milliseconds.

Taking the temperature sensor detecting the temperature values corresponding to two moments as an example, the processor 220 can obtain the first temperature value corresponding to the liquid at the first moment and the second temperature value corresponding to the liquid at the second moment, according to the second temperature value and the second temperature value. The temperature difference between a temperature value is used to determine the change trend of maintaining temperature. If the temperature difference between the second temperature value and the first temperature value is positive (or exceeds the preset amplitude threshold range), it can be determined that the change trend of the maintenance temperature is a temperature increasing trend; If the difference between the second temperature value and the first temperature value is negative (or exceeds the preset amplitude threshold), it can be determined that the change trend of maintaining the temperature is a temperature decreasing trend; if the difference between the second temperature value and the first temperature value is zero (or within the preset amplitude threshold) within the amplitude threshold range), it can be determined that the maintenance temperature does not have a changing trend, that is, there is no change. It can be understood that the first moment should precede the second moment, that is, the first moment is before and the second moment is after.

Step 350: Adjust the maintenance power according to the change trend of the maintenance temperature.

In some embodiments, this step may be performed by processor 220 and control component 210. In some embodiments, the sustain power may also be dynamically adjusted. This is because when the maintenance power is used to maintain the maintenance temperature of the liquid, the maintenance temperature may also change. At this time, the maintenance power can be adjusted according to the changing trend of the liquid maintenance temperature to ensure that the maintenance temperature of the liquid can be maintained at the target temperature, improving Liquid maintains temperature accurately. In some embodiments, the maintenance power is used to maintain the temperature of the liquid at the target temperature. When the maintenance temperature of the liquid changes during the constant temperature stage, the maintenance power can be adjusted to change the amount of heat applied by the heating device to the liquid, thereby adjusting the temperature of the liquid. Maintain temperature. Therefore, the maintenance power can be adjusted according to the changing trend of the maintenance temperature.

In some embodiments, the change trend of maintaining temperature is opposite to the adjustment trend of maintaining power. The adjustment trend to maintain power may include a power increasing trend and a power decreasing trend. In some embodiments, the change trend of maintaining temperature is opposite to the adjustment trend of maintaining power. It can be understood that when the change trend of maintaining temperature is a temperature increasing trend, the adjusting trend of maintaining power should be a power decreasing trend; the changing trend of maintaining temperature should be a power decreasing trend. When the temperature is on a decreasing trend, the adjustment trend to maintain power should be on a power increasing trend. In some embodiments, when the change trend of the maintenance temperature is a temperature increasing trend, it means that the heat applied by the current maintenance power to the liquid is greater than the heat dissipated by the liquid (it can also be understood that the maintenance power of the heating device is greater than the heat of the liquid itself). Heat dissipation power), at this time, the maintenance power can be reduced so that the heat applied to the liquid by the reduced maintenance power is approximately equal to the heat dissipated by the liquid, thereby ensuring that the maintenance dimension of the liquid is maintained at the target temperature. In the same way, when the change trend of the maintenance temperature is a temperature decreasing trend, it means that the heat applied by the current maintenance power to the liquid is less than the heat dissipated by the liquid (it can also be understood that the maintenance power of the heating device is less than the heat dissipation power of the liquid itself). At this time, the sustaining power can be increased so that the heat applied to the liquid by the increased sustaining power is approximately equal to the heat dissipated by the liquid, thereby ensuring that the sustaining dimension of the liquid is maintained at the target temperature.

In some embodiments, the adjustment trend to maintain power may also include unchanged power. When the maintenance temperature does not have a changing trend, that is, when the maintenance temperature remains unchanged relative to the target temperature or the change amplitude is within the preset amplitude threshold range, it means that the heat applied by the current maintenance power to the liquid is approximately equal to the heat dissipated by the liquid (it can also be understood that (The maintenance power of the heating device is approximately equal to the heat dissipation power of the liquid itself). At this time, the maintenance power does not need to be adjusted.

In some embodiments, the maintenance power can be adjusted according to a preset power step. For example, based on the current maintenance power, a preset power step can be added to increase the maintenance power. For another example, based on the current maintenance power, a preset power step size can be reduced to reduce the maintenance power. In some embodiments, the preset power step size may be a unit power value used to adjust the maintenance power.

In some embodiments, the process of adjusting the maintenance power according to the change trend of the maintenance temperature is detailed in the following description. After the processor 220 determines the change trend of the maintenance temperature, when the change trend of the maintenance temperature is an increase in temperature, the current maintenance power can be reduced by a preset power step as the adjusted maintenance power, and the adjusted maintenance power can be used to adjust the maintenance power. The liquid is heated; when the change trend of the maintenance temperature is a temperature decrease, the current maintenance power can be increased by a preset power step as the adjusted maintenance power, and the adjusted maintenance power is used to heat the liquid.

In some embodiments, the preset power step size for maintaining power may not be a fixed value, but may be dynamically adjusted. For example, when the maintenance temperature of the liquid changes greatly relative to the target temperature, adjusting the maintenance power with the current preset power step is not enough to maintain the maintenance temperature of the liquid at the target temperature. At this time, the preset maintenance power can be increased. Set the power step size. It should be noted that when adjusting the sustaining power, the current sustaining power can also be increased/decreased by a certain multiple of the preset power step to adjust the sustaining power.

In some embodiments, the maintenance power can also be adjusted with a specific power step according to the change amplitude of the liquid maintenance temperature relative to the target temperature. In some embodiments, when the change amplitude of the maintenance temperature relative to the target temperature exceeds the first threshold, the first power step can be used as a preset power step for adjusting the maintenance power, and the current maintenance power can be reduced/increased. The first power step is used as the adjusted maintenance power. In some embodiments, when the change amplitude of the maintenance temperature relative to the target temperature exceeds the second threshold, the second power step can be used as a preset power step for adjusting the maintenance power, and the current maintenance power can be reduced/increased. The second power step is used as the adjusted maintenance power. Wherein, the first threshold is smaller than the second threshold. The first power step size is smaller than the second power step size. In some embodiments, more thresholds for measuring the change of the maintenance temperature relative to the target temperature can also be set, for example, a third threshold, a fourth threshold, etc., and then the corresponding power step (for example, , the third power step, the fourth power step) as the preset power step for adjusting the maintenance power.

In some embodiments, using a preset power step to adjust the maintenance power can prevent the maintenance power from being adjusted too large at one time and causing a large change in the maintenance temperature, thereby improving the accuracy of maintaining the temperature while also improving the maintenance temperature. Can reduce the fluctuation of maintaining temperature.

It should be noted that the above description of process 300 is only for example and illustration, and does not limit the scope of application of this specification. For those skilled in the art, various modifications and changes can be made to the process 300 under the guidance of this description. For example, one or more steps may be added or subtracted from process 300. However, such modifications and changes remain within the scope of this specification. For example, in some embodiments,

steps

340 and 350 may be omitted.

In some embodiments, the heating rate of the liquid in the temperature-raising stage can be determined based on the parameter information of the liquid in the temperature-raising stage. The parameter information of the liquid in the heating stage may include heating information (eg, heating power, temperature information), environmental information (eg, ambient temperature), liquid parameter information (eg, volume of the liquid), etc. The heating rate of the liquid during the heating phase is described below.

In some embodiments, obtaining the heating rate of the liquid in the temperature-raising stage may include: Step 10: Obtaining the heating information of the liquid in the temperature-raising stage. In some embodiments, the processor 220 can obtain the heating information of the liquid during the heating stage. The heating information may be the temperature information of the liquid during the heating stage. In some embodiments, the heating information may include corresponding temperature values of the liquid at at least two moments. The corresponding temperature values of the liquid at at least two moments can be obtained through a temperature sensor. The temperature sensor can detect the temperature values of the liquid at multiple times at certain time intervals (for example, 0.1 seconds, 0.01 seconds, etc.), and transmit the temperature values of the liquid at multiple times to the processor 220 for analysis and processing. In some embodiments, the temperature sensor may be located inside the reservoir. Preferably, in order to make the liquid temperature value detected by the temperature sensor closer to the average temperature value of the liquid in the liquid storage tank, the temperature sensor can be located at the center of the liquid in the liquid storage tank. In other embodiments, the temperature sensor may also be located at other locations, such as the outlet and inlet of the liquid storage tank, the water inlet of the circulation pipeline, the water inlet pipe of the circulation pipeline, etc. A further description of the temperature sensor can be found elsewhere in this manual. In some embodiments, the heating information may also be heating time information of the liquid in the temperature rising stage. The heating information may include the time it takes for the temperature of the liquid to increase from a first temperature to a second temperature. The first temperature and the second temperature may be preset liquid temperatures. For example, the first temperature may be the initial temperature of the liquid and the second temperature may be the target temperature of the liquid. At this time, the heating time information may refer to the time it takes for the liquid temperature to rise from the initial temperature to the target temperature. The initial temperature of the liquid refers to the temperature of the liquid in the liquid storage tank before heating. In some embodiments, the heating information may also include the time it takes for the liquid temperature to rise a certain degree (eg, 1 degree, 10 degrees, etc.).

In some embodiments, obtaining the heating rate of the liquid in the temperature rising stage may also include step 20: determining the heating rate of the liquid in the temperature rising stage based on the heating information.

In some embodiments, the processor 220 may determine the heating rate of the liquid during the warming phase based on the heating information. In some embodiments, the heating rate of the liquid in the temperature rising stage can be determined based on the corresponding temperature values of the liquid at at least two moments. For example, the processor 220 respectively obtains the first temperature value corresponding to the liquid detected by the temperature sensor at the first time and the second temperature value corresponding to the liquid at the second time, and then based on the temperature difference between the second temperature value and the first temperature value. The heating rate of the liquid is determined by the ratio between the time difference between the second moment and the first moment. In some embodiments, the processor 220 may also determine the heating rate of the liquid in the temperature rising stage based on the heating time information. For example, the processor 220 may determine the heating rate of the liquid during the warming phase based on the time it takes for the temperature of the liquid to increase from an initial temperature to a target temperature.

In some embodiments, the heating rate of the liquid during the heating stage can also be obtained through other methods, such as table lookup. In some embodiments, the heating rate of the liquid in the heating stage can be determined based on the preset second correspondence table and the target temperature, initial temperature, and liquid volume of the liquid. In some embodiments, the temperature sensor can detect the initial temperature of the liquid before heating, and the processor 220 can obtain the initial temperature of the liquid detected by the temperature sensor. In some embodiments, ambient temperature (eg, room temperature) may also be considered as the initial temperature of the liquid. In some embodiments, the liquid volume may be approximately determined based on the volume of the liquid reservoir. For example, a scale can be provided on the side wall of the liquid storage tank, and the liquid volume can be determined based on the scale value corresponding to the liquid level and the size of the liquid storage tank. In some embodiments, the liquid volume may also be determined based on user selection, or a default volume may be used. In some embodiments, the liquid volume may also be determined based on a sensor (eg, a liquid level position sensor). In some embodiments, the preset second correspondence table may reflect the correspondence between the target temperature, the initial temperature, the liquid volume and the heating rate of the liquid. The processor 220 can find the corresponding heating rate under these parameter conditions in the preset second correspondence table according to the target temperature, initial temperature and liquid volume of the liquid. In some embodiments, the preset second correspondence table can be obtained through testing.

In some embodiments, the temperature information of the liquid, for example, the corresponding temperature values of the liquid at at least two moments, can be obtained using a temperature sensor. In some embodiments, the temperature sensor can detect the temperature value of the liquid at any time. The processor 220 can obtain the liquid temperature value detected by the temperature sensor, and analyze and process the temperature value to obtain corresponding information (eg, heating rate). For example, the processor 220 can respectively obtain the first temperature value corresponding to the liquid detected by the temperature sensor at the first time and the second temperature value corresponding to the liquid at the second time. The two moments and the second temperature value are analyzed to determine the heating rate of the liquid.

In some embodiments, the liquid is stored in a liquid storage tank, and a temperature sensor may be located inside the liquid storage tank to detect the temperature value of the liquid. In some embodiments, the temperature sensor can be located anywhere inside the reservoir. In some embodiments, when the heating device heats the liquid, due to the different positions of the liquid in the liquid storage tank, the temperature of the liquid at different positions may be slightly different. In this case, in order to make the liquid temperature value detected by the temperature sensor closer to the average temperature value of the liquid in the liquid storage tank, the temperature sensor can be located at the center of the liquid in the liquid storage tank. In some embodiments, the liquid temperature data detected by the temperature sensor located at the center of the liquid in the liquid storage tank can be used for analysis and processing by the processor 220, for example, for the analysis and processing by the processor 220 to determine the heating rate of the liquid during the heating stage, The maintenance power of the heating device during the constant temperature stage, etc. In some embodiments, temperature data detected by temperature sensors located at other locations within the liquid storage tank may also be used for analysis by the processor 220 .

In some embodiments, the number of temperature sensors may be multiple, so that the temperature sensors can detect the true temperature of the liquid more accurately. In some embodiments, multiple temperature sensors may be located at different locations in the liquid storage tank and/or circulation pipeline. Different positions of the liquid storage tank may include a central position of the liquid storage tank, a position near the inlet/outlet of the liquid storage tank, a corner position near the liquid storage tank, etc. Different locations of the circulation line may include the liquid inlet/outlet side of the circulation line, locations in the circulation line away from/close to the heating device, etc. In some embodiments, the liquid temperature detected by a temperature sensor at any location may be used as temperature data for analysis and processing by the processor 220 . In some embodiments, the average (or weighted average) of the liquid temperatures detected by temperature sensors at different locations can also be used as the temperature data for analysis and processing by the processor 220 . In some embodiments, when the liquid is stored in the liquid storage tank, the liquid storage tank may be connected to a circulation pipeline, and the liquid circulates in the circulation pipeline. For example, the circulation pipeline may be a bent tubular structure, and ports on both sides of the tubular structure are respectively connected to the liquid storage tank. One side of the circulation pipe (also called the liquid inlet side) is connected to the outlet of the liquid storage tank, and the other side of the circulation pipe (also called the liquid outlet side) is connected to the inlet of the liquid storage tank. The liquid flows into the circulation pipe from the outlet through the liquid inlet side of the circulation pipe, and flows back from the liquid outlet side of the circulation pipe through the inlet of the liquid storage tank to the liquid storage tank, thereby realizing the transfer of liquid between the circulation pipe and the liquid storage tank. Circular flow in the box.

In some embodiments, a heating device (for example, a heating tube) can be provided in the circulation pipeline. When the liquid flows in the circulation pipeline, the heating device can heat the liquid in the circulation pipeline, and the heated liquid flows back to the storage tank. liquid tank, thereby achieving cyclic heating of the liquid in the liquid storage tank. By heating the liquid in the liquid storage tank through liquid circulation, the heating power of the heating device (ie, the heat generated by the heating device) can be evenly released into the liquid, thereby improving the uniformity of the temperature of the liquid in the liquid storage tank. In some embodiments, the cooking device 100 may circulate liquid between the circulation pipe and the liquid storage tank before starting the heating device, thereby preventing the heating device from dry burning.

In some embodiments, in order to make the liquid temperature detected by the temperature sensor closer to the temperature of the liquid in the liquid storage tank, the temperature sensor may be disposed on the liquid inlet side of the circulation pipeline. In some embodiments, the temperature sensor may also be disposed in the pipeline between the liquid inlet side of the circulation pipeline and the heating device. It is understandable that the temperature values detected by temperature sensors located at different locations may be different.

In some embodiments, temperature sensors located at different locations may also be used to determine whether there is an obstacle in the liquid heating control system. For example, two temperature sensors on the liquid inlet side and liquid outlet side of the circulation pipeline respectively detect the temperature of the liquid at corresponding locations. If the difference in temperature values detected by the two temperature sensors is too large, there may be an obstacle in the liquid heating control system.

The following takes the application of the liquid heating control method described in the embodiments of this specification to a cooking device as an example to provide a detailed description of the use of liquid in the cooking device to heat food materials.

Figure 4 is another flowchart of a liquid heating control method according to some embodiments of this specification. As shown in Figure 4, process 400 may include:

Step 410, heat the liquid.

In some embodiments, this step may be performed by the control component 210 controlling the heating device. In some embodiments, before the liquid is heated and raised in temperature, the temperature of the liquid may be normal temperature. The magnitude of the liquid temperature may depend on the temperature of the ambient space in which the liquid is located (ie, the ambient temperature).

In some embodiments, the cooking device 100 may first obtain the target temperature of the liquid and the preset cooking time before cooking. In some embodiments, the cooking device 100 can obtain the target temperature and the preset cooking time through specific parameters input by the user on the terminal device. In some embodiments, the target temperature and preset cooking time can also be obtained directly according to the cooking recipe.

In some embodiments, the heating device can heat the liquid with a constant heating power. The size of the constant heating power can be preset or a power value input by the user through the terminal device. For example, the constant heating power may be the rated power of the heating device. As another example, the constant heating power may be the heating power input by the user. The heating method of the liquid by the heating device has been described above and will not be described again here.

Step 420: Obtain the heating rate in the heating stage.

In some embodiments, this step may be performed by processor 220. In some embodiments, the heating rate can be determined based on the heating information of the liquid during the heating stage (for example, the corresponding temperature values of the liquid at at least two moments). For example, the processor 220 can obtain the temperature values corresponding to two adjacent moments detected by the temperature sensor, and then determine the heating rate of the liquid in the temperature rising stage based on the temperature values corresponding to the two adjacent moments. Specifically, the processor 220 can determine the time required for the temperature to rise by 1 degree (or the temperature rising per unit time) based on the temperature values corresponding to two adjacent moments, thereby determining the heating rate of the liquid in the temperature rising stage. For more ways to determine the heating rate, please refer to the descriptions in other parts of this specification.

Step 430, determine whether the liquid temperature reaches the target temperature.

In some embodiments, this step may be performed by processor 220. In some embodiments, the temperature sensor can detect the temperature of the liquid in real time. The processor 220 obtains the liquid temperature value detected by the temperature sensor, compares the liquid temperature value with the target temperature, and determines whether the liquid temperature reaches the target temperature. The processor 220 further controls the cooking device 100 to perform specific steps according to the determination result. In some embodiments, if the liquid temperature has reached the target temperature, the cooking device 100 performs step 440 to determine the maintenance power; if the liquid temperature has not reached the target temperature, the cooking device 100 performs step 410 to heat the liquid. In some embodiments, when the liquid temperature does not reach the target temperature, steps 410, 420 and 430 may be performed in a loop until the liquid temperature reaches the target temperature.

Step 440: Determine the maintenance power.

In some embodiments, this step may be performed by processor 220. In some embodiments, the maintenance power may be determined based on the heating rate of the liquid during the temperature rise phase. For example, the processor 220 may determine the maintenance power according to the heating rate and the preset first correspondence table. The control component 210 controls the heating device to maintain power to continue heating the liquid, so that the maintenance temperature of the liquid is maintained at the target temperature.

Step 450: Determine whether the change trend of the liquid's maintenance temperature is an increase in temperature.

In some embodiments, this step may be performed by processor 220. In some embodiments, the temperature sensor can detect the maintenance temperature of the liquid. The processor 220 obtains the maintenance temperature detected by the temperature sensor, and determines whether the change trend of the liquid maintenance temperature is a temperature increase based on the relationship between the maintenance temperature and the target temperature. The processor 220 further controls the cooking device 100 to perform specific steps based on the determination result of maintaining the changing trend of the temperature. In some embodiments, if the change trend of the liquid maintenance temperature is an increase in temperature, the cooking device 100 performs step 460 to reduce the maintenance power; otherwise, the cooking device 100 performs step 470 to determine whether the change trend of the maintenance temperature is a downward trend.

Step 460: Reduce the maintenance power of the heating device.

In some embodiments, this step may be performed by control component 210. In some embodiments, when the change trend of the liquid maintenance temperature is an increase in temperature, the control component 210 may send a control instruction to the heating device to reduce the maintenance power of the heating device. For example, the control component 210 can control the heating device to reduce the current maintenance power by a preset power step as the adjusted maintenance power, and continue to heat the liquid with the adjusted maintenance power. More description of adjusting the sustain power can be found elsewhere in this manual.

Step 470: Determine whether the change trend of the liquid maintenance temperature is a temperature decrease.

In some embodiments, this step may be performed by processor 220. In some embodiments, the temperature sensor can detect the maintenance temperature of the liquid. The processor 220 obtains the maintenance temperature detected by the temperature sensor, and determines whether the change trend of the liquid maintenance temperature is a temperature drop based on the relationship between the maintenance temperature and the target temperature. The processor 220 further controls the cooking device 100 to perform specific steps based on the determination result of maintaining the changing trend of the temperature. In some embodiments, if the change trend of the liquid maintenance temperature is that the temperature decreases, the cooking device 100 executes step 480 to increase the maintenance power; otherwise, the cooking device 100 executes step 490 and does not adjust the maintenance power, but determines whether the cooking level has been reached. time.

Step 480: Increase the maintenance power of the heating device.

In some embodiments, this step may be performed by control component 210. In some embodiments, when the change trend of the liquid maintenance temperature is a temperature decrease, the control component 210 may send a control instruction to the heating device to increase the maintenance power of the heating device. For example, the control component 210 can control the heating device to increase the current maintenance power by a preset power step as the adjusted maintenance power, and continue to heat the liquid with the adjusted maintenance power. More description of adjusting the sustain power can be found elsewhere in this manual.

Step 490, determine whether the current cooking time reaches the preset cooking time.

In some embodiments, this step may be performed by processor 220. In some embodiments, the processor 220 may obtain the current cooking time of the cooking device 100 and determine whether the current cooking time reaches the preset cooking time based on the relationship between the current cooking time and the preset cooking time. In some embodiments, if the current cooking time has reached the preset cooking time, the cooking process ends; if the current cooking time has not reached the preset cooking time, step 450 is performed. In some embodiments, when the cooking time of the cooking device 100 does not reach the preset cooking time, some of

steps

450, 460, 470, 480 and 490 may be executed in a loop until the cooking time of the cooking device 100 is reached. The preset cooking time is reached.

It should be noted that the above description of process 400 is only for example and illustration, and does not limit the scope of application of this specification. For those skilled in the art, various modifications and changes can be made to the process 400 under the guidance of this specification. However, such modifications and changes remain within the scope of this specification.

Figure 5 is an exemplary block diagram of a liquid heating control system according to some embodiments of the present specification. As shown in FIG. 5 , the liquid heating control system 500 may include a temperature increasing module 510 and a constant temperature module 520 .

In some embodiments, the heating module 510 can be used to control the heating device to heat the liquid in the cooking device according to the heating instruction.

In some embodiments, the thermostat module 520 can be used to control the heating device to maintain power for heating when the liquid reaches the target temperature; the maintenance power is used to maintain the temperature of the liquid at the target temperature.

In some embodiments, the thermostat module 520 can obtain the heating rate of the liquid in the stage before it is heated to the target temperature (that is, the heating stage), and determine the maintenance power according to the heating rate. In some embodiments, the constant temperature module 520 can determine the heat dissipation power in the stage after the liquid is heated to the target temperature (that is, the constant temperature stage) based on the heating rate, and determine the maintenance power based on the heat dissipation power. For example, the sustaining power may be equal to the cooling power. In some embodiments, the thermostat module 520 may also determine the maintenance power according to the preset first correspondence table and the heating rate. In some embodiments, the thermostatic module 520 may also determine the maintenance power based on the heating rate, the volume of the liquid, and/or the ambient temperature.

In some embodiments, the heating module 510 can obtain the heating information of the liquid in the stage before it is heated to the target temperature, and determine the heating rate of the liquid in the stage before it is heated to the target temperature based on the heating information. In some embodiments, the heating module 510 can determine the heating rate based on temperature values corresponding to at least two moments. In some embodiments, the heating module 510 may also determine the heating rate in the stage before the liquid is heated to the target temperature based on the preset second correspondence table and the target temperature.

In some embodiments, the thermostat module 520 can adjust the maintenance power according to the change trend of the maintenance temperature. In some embodiments, the constant temperature module 520 can obtain the temperature values corresponding to at least two moments in the stage after the liquid is heated to the target temperature (that is, the constant temperature stage), and determine the temperature value corresponding to the at least two moments based on the temperature values corresponding to the at least two moments. Trend. In some embodiments, when the change trend of the maintenance temperature is that the temperature is increasing, the thermostat module 520 can reduce the current maintenance power by a preset power step as the adjusted maintenance power; when the change trend of the maintenance temperature is that the temperature When decreasing, the thermostat module 520 can increase the current maintenance power by a preset power step as the adjusted maintenance power.

For further details on the liquid heating control system 500 and its modules, reference may be made to Figures 3 and 4 and their associated descriptions.

It should be understood that the liquid heating control system and its modules shown in Figure 5 can be implemented in various ways. For example, in some embodiments, the liquid heating control system and its modules may be implemented by hardware, software, or a combination of software and hardware. Among them, the hardware part can be implemented using dedicated logic; the software part can be stored in a storage medium and executed by an appropriate instruction execution system, such as a microprocessor or specially designed hardware. Those skilled in the art will understand that the above-mentioned methods and systems can be implemented using computer-executable instructions and/or included in processor control code, for example on a carrier medium such as a disk, CD or DVD-ROM, such as a read-only memory (firmware). Such code is provided on a programmable memory or a data carrier such as an optical or electronic signal carrier. The system and its modules in this specification may not only be implemented by hardware circuits such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, etc., or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc. , can also be implemented by, for example, software executed by various types of processors, or can also be implemented by a combination of the above-mentioned hardware circuits and software (for example, firmware).

It should be noted that the above description of the system and its modules is only for convenience of description and does not limit this specification to the scope of the embodiments. It can be understood that for those skilled in the art, after understanding the principle of the system, it is possible to arbitrarily combine various modules or form a subsystem to connect with other modules without departing from this principle. For example, in some embodiments, thermostat module 520 may be divided into two separate modules. Such deformations are within the scope of this manual.

In some embodiments, the present specification provides a control device for liquid heating of a cooking device, the device including at least one processor (eg, processor 220) and at least one memory (eg, memory 160), at least one The memory 160 can be used to store computer instructions; when at least one processor 220 executes the computer instructions, the processor 220 can be configured to: obtain the target temperature; control the heating device to heat the liquid in the cooking device according to the heating instructions; when the liquid reaches the target When the temperature is high, the heating device is controlled to maintain power for heating; the maintenance power is used to maintain the temperature of the liquid at the target temperature. More information about the processor 220's execution of corresponding instruction operations can be found elsewhere in this specification, for example, FIGS. 1-4 and their related descriptions.

In some embodiments, this specification provides a computer-readable storage medium that stores computer instructions. After the computer reads the computer instructions in the storage medium, the computer executes the steps in one or more embodiments of this specification. At least one way. For more description about the computer executing the methods in this specification, please refer to other parts of this specification, for example, Figures 1 to 4 and their related descriptions.

In some embodiments, this specification provides a cooking device. The cooking device includes a liquid storage tank and a heating device; the heating device is used to heat the liquid in the liquid storage tank; the heating device may have a first heating mode and a second heating device. mode; in the first heating mode, the heating device heats the liquid in the liquid storage tank at full power; in the second heating mode, the heating device heats the liquid in the liquid storage tank at maintained power; the heating device heats the liquid in the liquid storage tank at full power; The temperature of the liquid in the tank switches the cooking device between a first heating mode and a second heating mode. In some embodiments, when the temperature of the liquid in the liquid storage tank does not reach the target temperature, the heating device may be in the first heating mode; when the temperature of the liquid in the liquid storage tank reaches the target temperature, the heating device may switch from the first heating mode to the target temperature. Switch to the second heating mode. In some embodiments, the target temperature may include a first temperature threshold and a second temperature threshold. When the temperature of the liquid in the liquid storage tank rises to the first temperature threshold, the heating device switches from the first heating mode to the second heating mode. ; When the temperature of the liquid in the liquid storage tank drops to the second temperature threshold, the heating device switches from the second heating mode to the first heating mode. In some embodiments, the maintenance power may be determined by the heating rate in the first heating mode. In some embodiments, the heating rate includes a first heating rate and a second heating rate. In some embodiments, the maintenance power may also be determined by the volume of liquid in the liquid storage tank and/or the temperature of the environment in which the liquid storage tank is located. In some embodiments, the maintenance power in the second heating mode can be adjusted according to the temperature change trend of the liquid in the liquid storage tank; when the temperature change trend of the liquid in the liquid storage tank is an increase in temperature, the current maintenance power can be adjusted Decrease; when the temperature change trend of the liquid in the storage tank is a temperature drop, the current maintenance power can be increased. In some embodiments, the maintenance power in the second heating mode may have an initial power, and the maintenance power is determined by the initial power, the current actual temperature difference and the historical temperature difference integral. In some embodiments, the heating device includes a rated power, and the rated power is used to determine an initial power to maintain the power in conjunction with the first heating rate and the second heating rate. In some embodiments, the maintenance power in the second heating mode can also be adjusted according to the changing trend of the temperature of the liquid in the liquid storage tank relative to the target temperature; when the temperature of the liquid in the liquid storage tank is higher than the target temperature, the maintenance power can be adjusted. The current maintenance power is reduced; when the temperature of the liquid in the liquid storage tank is lower than the target temperature, the current maintenance power can be increased. In some embodiments, the cooking device may further include a circulation pipeline having a liquid inlet side and a liquid outlet side connected to the liquid storage tank; the cooking device may further include a temperature sensor disposed on the liquid inlet side. For more information about the cooking device, please refer to the previous description and will not be repeated here.

In some embodiments, embodiments of the present description provide a method for controlling a cooking device. The method is executed by at least one processor (eg, processor 220). The method may include: obtaining a target temperature set for the cooking device. ; According to the target temperature and the volume of the liquid storage tank in the cooking device, the heating rate is determined; according to the heating rate, the maintenance power is determined; when the temperature of the liquid in the liquid storage tank reaches the target temperature, the heating device is controlled to operate with maintenance power. In some embodiments, the volume of the liquid storage tank in the cooking device may refer to the volume of the internal space of the liquid storage tank. In some embodiments, the volume of the liquid storage tank may be used to approximately represent the volume of liquid in the liquid storage tank. In some embodiments, determining the heating rate based on the target temperature and the volume of the liquid storage tank in the cooking device may include a table lookup method. For example, the processor 220 may determine the heating rate according to the target temperature, the volume of the liquid storage tank in the cooking device, and the second correspondence table. In some embodiments, the heating rate is determined based on the target temperature and the volume of the liquid reservoir in the cooking device. In some embodiments, determining the maintenance power according to the heating rate may include a table lookup method. For example, the processor 220 may determine the maintenance power according to the heating rate and the first correspondence table. In some embodiments, the maintenance power is determined based on the heating rate. In some embodiments, after the heating device is operated at maintenance power, the method may further include: adjusting the temperature according to the temperature change trend of the liquid in the liquid storage tank within a preset time (that is, a preset time step). Maintain power. In some embodiments, when the temperature change trend of the liquid in the liquid storage tank within the preset time is rising, the current maintenance power can be reduced; when the temperature change trend of the liquid in the liquid storage tank within the preset time is falling , the current sustaining power can be increased. In some embodiments, the current maintenance power can be adjusted according to a preset power step. For example, when the temperature change trend of the liquid in the liquid storage tank within the preset time is rising, the current maintenance power can be reduced by the preset power step as the adjusted maintenance power; When the temperature change trend within the time period is downward, the current maintenance power can be increased by a preset power step as the adjusted maintenance power. For more information about the control method of the cooking device 100, please refer to the above description, and will not be described again here.

It should be noted that the heating power of the heating device described in the embodiments of this specification may be the average heating power of the heating device. The average heating power of the heating device can be calculated based on the duty cycle of the heating device's starting time and non-starting time. For example, during the heating stage of the liquid, the duty cycle of the heating device's start time and non-start time can be 100%. At this time, the heating power is the actual output power of the heating device. For another example, when the liquid is in the constant temperature stage, the duty cycle of the startup time and the non-start time of the heating device can be less than 100%. By adjusting the duty cycle, the average heating power of the heating device can be adjusted.

The basic concepts have been described above. It is obvious to those skilled in the art that the above detailed disclosure is only an example and does not constitute a limitation of this specification. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to this specification by those skilled in the art. Such modifications, improvements, and corrections are suggested in this specification, and therefore such modifications, improvements, and corrections remain within the spirit and scope of the exemplary embodiments of this specification.

At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment," "an embodiment," and/or "some embodiments" means a certain feature, structure, or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that “one embodiment” or “an embodiment” or “an alternative embodiment” mentioned twice or more at different places in this specification does not necessarily refer to the same embodiment. . In addition, certain features, structures or characteristics in one or more embodiments of this specification may be appropriately combined.

Furthermore, those skilled in the art will appreciate that aspects of the specification may be illustrated and described in several patentable categories or circumstances, including any new and useful process, machine, product, or combination of matter, or combination thereof. any new and useful improvements. Accordingly, various aspects of this specification may be entirely executed by hardware, may be entirely executed by software (including firmware, resident software, microcode, etc.), or may be executed by a combination of hardware and software. The above hardware or software may be referred to as "data block", "module", "engine", "unit", "component" or "system". Additionally, aspects of this specification may be represented by a computer product including computer-readable program code located on one or more computer-readable media.

Computer storage media may contain a propagated data signal embodying the computer program code, such as at baseband or as part of a carrier wave. The propagated signal may have multiple manifestations, including electromagnetic form, optical form, etc., or a suitable combination. Computer storage media may be any computer-readable media other than computer-readable storage media that enables communication, propagation, or transfer of a program for use in connection with an instruction execution system, apparatus, or device. Program code located on a computer storage medium may be transmitted via any suitable medium, including radio, electrical cable, fiber optic cable, RF, or similar media, or a combination of any of the foregoing.

The computer program coding required to operate each part of this manual can be written in any one or more programming languages, including object-oriented programming languages such as Java, Scala, Smalltalk, Eiffel, JADE, Emerald, C++, C#, VB.NET, Python etc., conventional procedural programming languages such as C language, Visual Basic, Fortran 2003, Perl, COBOL 2002, PHP, ABAP, dynamic programming languages such as Python, Ruby and Groovy, or other programming languages. The program code may run entirely on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or processing device. In the latter case, the remote computer can be connected to the user computer via any form of network, such as a local area network (LAN) or a wide area network (WAN), or to an external computer (e.g. via the Internet), or in a cloud computing environment, or as a service Use software as a service (SaaS).

In addition, unless explicitly stated in the claims, the order of the processing elements and sequences, the use of numbers and letters, or the use of other names in this specification are not intended to limit the order of the processes and methods in this specification. Although the foregoing disclosure discusses by various examples some embodiments of the invention that are presently considered useful, it is to be understood that such details are for purposes of illustration only and that the appended claims are not limited to the disclosed embodiments. To the contrary, rights The claims are intended to cover all modifications and equivalent combinations consistent with the spirit and scope of the embodiments of this specification. For example, although the system components described above can be implemented by hardware devices, they can also be implemented by software-only solutions, such as installing the described system on existing processing equipment or mobile devices.

Similarly, it should be noted that, in order to simplify the expression disclosed in this specification and thereby help understand one or more embodiments of the invention, in the previous description of the embodiments of this specification, multiple features are sometimes combined into one embodiment. accompanying drawings or descriptions thereof. However, this method of disclosure does not imply that the subject matter of the description requires more features than are mentioned in the claims. In fact, embodiments may have less than all features of a single disclosed embodiment.

In some embodiments, numbers are used to describe the quantities of components and properties. It should be understood that such numbers used to describe the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Grooming. Unless otherwise stated, "about," "approximately," or "substantially" means that the stated number is allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending on the desired features of the individual embodiment. In some embodiments, numerical parameters should account for the specified number of significant digits and use general digit preservation methods. Although the numerical ranges and parameters used to identify the breadth of ranges in some embodiments of this specification are approximations, in specific embodiments, such numerical values are set as accurately as is feasible.

Each patent, patent application, patent application publication and other material, such as articles, books, instructions, publications, documents, etc. cited in this specification is hereby incorporated by reference into this specification in its entirety. Application history documents that are inconsistent with or conflict with the content of this specification are excluded, as are documents (currently or later appended to this specification) that limit the broadest scope of the claims in this specification. It should be noted that if there is any inconsistency or conflict between the descriptions, definitions, and/or the use of terms in the accompanying materials of this manual and the content described in this manual, the descriptions, definitions, and/or the use of terms in this manual shall prevail. .

Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Accordingly, by way of example and not limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to those expressly introduced and described in this specification.

Claims

A method for controlling liquid heating of a cooking vessel, characterized in that the method includes:

Get the target temperature;

Control the heating device to heat the liquid in the cooking device with constant heating power according to the heating command;

When the liquid reaches the target temperature, the heating device is controlled to maintain power for heating; the maintenance power is used to maintain the temperature of the liquid at the target temperature.
The method of claim 1, further comprising:

Obtain the heating rate of the liquid before it is heated to the target temperature;

Based on the heating rate, the sustaining power is determined.
The method of claim 2, wherein determining the maintenance power according to the heating rate includes:

According to the heating rate, determine the heat dissipation power in the stage after the liquid is heated to the target temperature;

The maintenance power is determined based on the heat dissipation power.
The method of claim 2, wherein determining the maintenance power according to the heating rate further includes:

The maintenance power is determined based on the heating rate, the volume of the liquid and/or the ambient temperature.
The method of claim 2, wherein obtaining the heating rate of the liquid before it is heated to the target temperature includes:

Obtain the heating information of the liquid before it is heated to the target temperature;

Based on the heating information, the heating rate in the stage before the liquid is heated to the target temperature is determined.
The method according to claim 5, characterized in that the heating information includes temperature values corresponding to the liquid at at least two moments; and based on the heating information, it is determined that the temperature of the liquid in the stage before the liquid is heated to the target temperature is determined. The heating rate includes: determining the heating rate according to the temperature values corresponding to the at least two moments.
The method according to claim 1, characterized in that the method further includes: determining the change trend of the maintenance temperature in the stage after the liquid is heated to the target temperature;

The maintenance power is adjusted according to the change trend of the maintenance temperature.
The method according to claim 7, wherein adjusting the maintenance power according to the change trend of the maintenance temperature includes:

When the maintenance temperature is lower than the second temperature threshold, the maintenance power is adjusted to a constant power during the heating phase.
The method of claim 2, wherein the heating rate includes a first heating rate and a second heating rate, and determining the maintenance work according to the heating rate includes:

The maintenance power is determined according to the first heating rate and the second heating rate.
The method of claim 9, wherein the heating device includes a rated power, and the maintaining power is determined based on the rated power, the first heating rate, and the second heating rate.
The method according to claim 9, characterized in that determining the change trend of the maintenance temperature in the stage after the liquid is heated to the target temperature includes:

Obtain the temperature values corresponding to at least two moments in the stage after the liquid is heated to the target temperature;

According to the temperature values corresponding to the at least two moments, the change trend of the maintenance temperature is determined.
The method according to claim 11, characterized in that the time interval between two adjacent moments in the at least two moments ranges from 3 milliseconds to 10 milliseconds.
The method according to claim 9, characterized in that the change trend of the maintenance temperature is opposite to the adjustment trend of the maintenance power.
The method according to claim 9, characterized in that adjusting the maintenance power according to the change trend of the maintenance temperature includes:

When the change trend of the maintenance temperature is an increase in temperature, the current maintenance power is reduced by a preset power step as the adjusted maintenance power;

When the change trend of the maintenance temperature is a temperature decrease, the current maintenance power is increased by a preset power step as the adjusted maintenance power.
The method according to claim 6 or 12, characterized in that the corresponding temperature values of the liquid at at least two moments are obtained through a temperature sensor.
The method of claim 15, wherein the liquid is stored in a liquid storage tank, and the temperature sensor is located in the liquid storage tank.
The method according to claim 15, characterized in that the liquid is stored in a liquid storage tank, the liquid storage tank is connected to a circulation pipeline, and the liquid circulates in the circulation pipeline; the temperature sensor is located at The liquid inlet side of the circulation pipeline.
The method according to claim 17, characterized in that a heating device is provided in the circulation pipeline; and the temperature sensor is located in the pipeline between the liquid inlet of the circulation pipeline and the heating device.
The method of claim 1, wherein the liquid is used to heat food ingredients in a cooking device; the method further includes:

Get the target temperature through the terminal device.
The method of claim 19, further comprising:

Get the preset cooking time through the terminal device;

When the liquid reaches the target temperature, controlling the heating device to maintain power for heating includes: controlling the heating device to maintain power for heating until the preset cooking time is reached.
A control device for liquid heating of a cooking device, characterized in that the device includes at least one processor and at least one memory, the at least one memory is used to store computer instructions; when the at least one processor executes the When the computer instructions are described, the processor is configured to:

Get the target temperature;

Control the heating device to heat the liquid in the cooking device according to the heating instructions;

When the liquid reaches the target temperature, the heating device is controlled to maintain power for heating; the maintenance power is used to maintain the temperature of the liquid at the target temperature.
A computer-readable storage medium. The storage medium stores computer instructions. After the computer reads the computer instructions in the storage medium, the computer executes the method according to any one of claims 1 to 19.
A control system for liquid heating of a cooking device, characterized in that the system includes:

The heating module is used to control the heating device to heat the liquid according to the heating instructions;

A thermostat module is used to control the heating device to maintain power for heating when the liquid reaches a target temperature; the maintenance power is used to maintain the temperature of the liquid at the target temperature.
A cooking device, the cooking device includes a liquid storage tank and a heating device; the heating device is used to heat the liquid in the liquid storage tank;

The heating device has a first heating mode and a second heating mode; in the first heating mode, the heating device heats the liquid in the liquid storage tank at full power; in the second heating mode, the heating device The heating device heats the liquid in the liquid storage tank at a maintained power; the heating device switches between the first heating mode and the second heating mode according to the temperature of the liquid in the liquid storage tank.
The cooking device according to claim 24, wherein when the temperature of the liquid in the liquid storage tank reaches a target temperature, the heating device switches from the first heating mode to the second heating mode.
The cooking device according to claim 25, wherein the target temperature includes a first temperature threshold and a second temperature threshold, and when the temperature of the liquid in the liquid storage tank rises to the first temperature threshold, The heating device switches from the first heating mode to the second heating mode; when the temperature of the liquid in the liquid storage tank drops to the second temperature threshold, the heating device switches from the second heating mode to the second heating mode. The mode is switched to the first heating mode.
The cooking device according to claim 24, wherein the maintenance power is determined by a heating rate in the first heating mode; wherein the heating rate includes a first heating rate and a second heating rate.
The cooking device according to claim 27, wherein the heating device includes a rated power, the rated power is used to determine the initial value of the maintenance power in conjunction with the first heating rate and the second heating rate. power.
The cooking device according to claim 27, wherein the maintenance power is further determined by the volume of liquid in the liquid storage tank and/or the temperature of the environment in which the liquid storage tank is located.
The cooking device according to claim 24, wherein the maintenance power in the second heating mode can also be adjusted according to the changing trend of the temperature of the liquid in the liquid storage tank;

When the temperature change trend of the liquid in the liquid storage tank is a temperature increase, the current maintenance power is reduced; when the temperature change trend of the liquid in the liquid storage tank is a temperature decrease, the current maintenance power is increased.
The cooking device according to claim 30, wherein the maintenance power in the second heating mode has an initial power, and the maintenance power is determined by the initial power, the current actual temperature difference and the historical temperature difference integral.
The cooking device according to claim 24, wherein the maintenance power in the second heating mode can also be adjusted according to the change trend of the temperature of the liquid in the liquid storage tank relative to the target temperature;

When the temperature of the liquid in the liquid storage tank is higher than the target temperature, the current maintenance power is reduced; when the temperature of the liquid in the liquid storage tank is lower than the target temperature, the current maintenance power is increased.
The cooking device according to claim 25 or 39 or 32, characterized in that the cooking device further includes a circulation pipeline, the circulation pipeline has a liquid inlet side and a liquid outlet side connected with the liquid storage tank. ; The cooking device further includes a temperature sensor, which is disposed on the liquid inlet side.
A method of controlling a cooking device, characterized in that the method is executed by at least one processor, and the method includes:

Get the target temperature set for the cooking device;

Determine the heating rate based on the target temperature and the volume of the liquid storage tank in the cooking device;

According to the heating rate, the maintenance power is determined; when the temperature of the liquid in the liquid storage tank reaches the target temperature, the heating device is controlled to operate at the maintenance power.