An oven and a control method thereof

Abstract

The embodiment of the application provides a kind of oven and its control method, it is related to oven technical field, for the preservation of food material in cooking process, to improve the taste of dish.The oven includes: oven body, with the inner cavity of opening;Oxygen sensor, for detecting the oxygen content of air in the inner cavity;Gas separation system, for extracting air in the inner cavity;The oxygen filtration treatment of air extracted;The filtered oxygen after air is recharged into the inner cavity;Controller is configured to: receive the starting instruction of low-oxygen cooking mode;In response to the starting instruction of low-oxygen cooking mode, the oxygen content of air in the inner cavity is obtained by oxygen sensor;When the oxygen content of air in the inner cavity is greater than the first oxygen content threshold, control gas separation system to work, so that the oxygen content of air in the inner cavity is reduced to the first oxygen content threshold.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ovens, and in particular to an oven and a control method thereof. BACKGROUND

[0002] An oven is a closed electric heating appliance for baking food, which uses heat radiation from a heating device to bake food. The oven can be used to process some food such as bread, pizza, egg tart, cookies and other snacks, and can also be used for meat cooking.

[0003] With the improvement of people's living standards, the use of ovens is gradually becoming widespread, and users' demand for the freshness of food and the taste of dishes has also increased. Currently, food placed in the oven for cooking cannot be preserved, which will affect the taste of dishes and reduce the cooking experience of users. SUMMARY

[0004] The present application provides an oven and a control method thereof, which are used to preserve food during cooking to improve the taste of dishes.

[0005] In a first aspect, the present application provides an oven, which includes an oven body having an open inner cavity, an oxygen sensor configured to detect the oxygen content of air in the inner cavity, a gas separation system configured to extract air in the inner cavity, perform oxygen filtration processing on the extracted air, and recharge the air after oxygen filtration into the inner cavity, and a controller configured to receive a start instruction of a low-oxygen cooking mode, obtain the oxygen content of air in the inner cavity through the oxygen sensor in response to the start instruction of the low-oxygen cooking mode, and control the gas separation system to work when the oxygen content of air in the inner cavity is greater than a first oxygen content threshold, so that the oxygen content of air in the inner cavity is reduced to the first oxygen content threshold.

[0006] The technical scheme provided by the present application at least brings the following beneficial effects: the present application sets a low-oxygen cooking mode for the oven, and controls the working state of the gas separation system in the low-oxygen cooking mode to control the oxygen content in the inner cavity of the oven, so that the oxygen content is less than or equal to the first oxygen content threshold. In this way, during the cooking process of the oven, the food in the oven is in an inner cavity with low oxygen content, which can reduce the oxidation degree of the food during the cooking process, preserve the food, for example, reduce the degree of change in the surface color of the food when it is oxidized, and avoid the loss of nutritional elements of the food during the oxidation process, thereby improving the taste of the cooked dishes.

[0007] In some embodiments, an air inlet and an air outlet are provided on the inner cavity; the gas separation system includes: an air compressor and a gas separation device; a first end of the air compressor is connected to the air inlet, and a second end is connected to the first end of the gas separation device; the air compressor is used to draw air from the inner cavity through the air inlet and deliver the drawn air to the gas separation device; a second end of the gas separation device is connected to the air outlet, and a third end of the gas separation device is connected to the outside of the oven; the gas separation device is used to filter oxygen from the air delivered by the air compressor; the filtered oxygen is discharged through the third end of the gas separation device; and the air after oxygen removal is refilled into the inner cavity through the second end of the gas separation device.

[0008] In some embodiments, the gas separation system further includes: a filter, one end of which is connected to an air inlet and the other end of which is connected to a first end of an air compressor; the filter is used to remove impurities from the air inside the cavity; and the air with the impurities removed is delivered to the air compressor.

[0009] In some embodiments, the oven further includes a refrigeration device for cooling the air in the pipe between the second end of the gas separator and the air outlet.

[0010] In some embodiments, the oven further includes: a temperature sensor for detecting the temperature inside the cavity; and a controller further configured to: receive a pre-cooking instruction, the pre-cooking instruction including a first temperature threshold and a second oxygen content threshold; in response to the pre-cooking instruction, an oxygen sensor acquires the oxygen content of the air inside the cavity, and the temperature sensor acquires the temperature inside the cavity; when the oxygen content of the air inside the cavity is greater than the second oxygen content threshold, control a gas separation system to operate, so that the oxygen content of the air inside the cavity is reduced to the second oxygen content threshold; and / or, when the temperature inside the cavity is greater than the first temperature threshold, control a cooling device to operate, so that the temperature inside the cavity is reduced to the first temperature threshold.

[0011] In the above embodiments, the degree of oxidation of food before cooking can be reduced by creating a low-oxygen and low-temperature environment for the food. For example, the degree of surface color change during oxidation can be reduced, and the loss of nutrients in the food can be avoided during the oxidation process, so as to achieve food preservation during the reservation stage of scheduled cooking.

[0012] In some embodiments, the controller is further configured to: control the cooling device to operate after cooking is finished, so that the temperature inside the cavity is reduced to a second temperature threshold.

[0013] Secondly, embodiments of this application provide a control method for an oven, the control method comprising: receiving a start command for a low-oxygen cooking mode; in response to the start command for the low-oxygen cooking mode, acquiring the oxygen content of the air inside the cavity through an oxygen sensor; and when the oxygen content of the air inside the cavity is greater than a first oxygen content threshold, controlling a gas separation system to operate so that the oxygen content of the air inside the cavity is reduced to the first oxygen content threshold.

[0014] In some embodiments, the method further includes: receiving a scheduled cooking instruction, the scheduled cooking instruction including a first temperature threshold and a second oxygen content threshold; in response to the scheduled cooking instruction, an oxygen sensor acquires the oxygen content of the air inside the cavity, and a temperature sensor acquires the temperature inside the cavity; when the oxygen content of the air inside the cavity is greater than the second oxygen content threshold, controlling a gas separation system to operate, so that the oxygen content of the air inside the cavity is reduced to the second oxygen content threshold; and / or, when the temperature inside the cavity is greater than the first temperature threshold, controlling a cooling device to operate, so that the temperature inside the cavity is reduced to the first temperature threshold.

[0015] In some embodiments, the method further includes: after cooking is finished, controlling the cooling device to operate so that the temperature inside the cavity decreases to a second temperature threshold.

[0016] Thirdly, embodiments of this application provide a controller, including: one or more processors; one or more memories; wherein the one or more memories are used to store computer program code, the computer program code including computer instructions, and when the one or more processors execute the computer instructions, the controller executes the control method provided in the second aspect.

[0017] Fourthly, embodiments of this application provide a computer-readable storage medium including computer instructions that, when controlled on a computer, cause the computer to perform the methods provided in the second aspect and possible implementations.

[0018] Fifthly, embodiments of the present invention provide a computer program product that can be directly loaded into a memory and contains software code. After being loaded and executed by a computer, the computer program product can implement the methods provided in the second aspect and possible implementations.

[0019] It should be noted that the aforementioned computer instructions may be stored, in whole or in part, on a computer-readable storage medium. This computer-readable storage medium may be packaged together with the controller's processor, or it may be packaged separately from the controller's processor; this application does not impose any limitations on this.

[0020] The beneficial effects described in aspects two through five of this application can be referred to the analysis of the beneficial effects of aspect one, and will not be repeated here. Attached Figure Description

[0021] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0022] Figure 1 This is a schematic diagram of the structure of an oven provided in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the structure of another oven provided in an embodiment of this application;

[0024] Figure 3 A schematic diagram of a refrigeration device provided for an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the structure of another oven provided in an embodiment of this application;

[0026] Figure 5 This is a cross-sectional schematic diagram of an oven provided in an embodiment of this application;

[0027] Figure 6 A structural block diagram of an oven provided in an embodiment of this application;

[0028] Figure 7 A flowchart illustrating an oven control method provided in this application embodiment;

[0029] Figure 8 A logic block diagram of an oven control method provided in an embodiment of this application;

[0030] Figure 9 A flowchart illustrating another oven control method provided in this application embodiment;

[0031] Figure 10 A logic block diagram of another oven control method provided in an embodiment of this application;

[0032] Figure 11 A flowchart illustrating another oven control method provided in this application embodiment;

[0033] Figure 12 This is a schematic diagram of the hardware structure of another oven provided in an embodiment of this application. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0038] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0039] To enable ovens to preserve food, this application provides an oven with a low-oxygen cooking mode and a gas separation system for extracting air from the oven cavity. When the oven activates the low-oxygen cooking mode, an oxygen sensor detects the oxygen content of the air inside the cavity. If the oxygen content exceeds a first oxygen content threshold, the gas separation system is activated to reduce the oxygen content to the threshold. Thus, during cooking, the food is kept in a low-oxygen environment, reducing oxidation and preserving freshness, thereby improving the taste of the cooked food.

[0040] Optionally, the oven provided in this application embodiment is a cooking device with baking or steam heating functions. For example, the oven can be an electric oven, an integrated stove with oven functions, a steam oven, a baking machine, etc., and there is no limitation thereto.

[0041] To further describe the scheme of this application, Figure 1 and Figure 2 The diagram shown is a schematic representation of the overall structure of an oven according to an embodiment of this application. (Combined with...) Figure 1 and Figure 2 The oven 100 includes: an oven body 11, an oxygen sensor 12, a gas separation system 13, and a controller 14. Figure 1 and Figure 2 (Not shown in the image).

[0042] The oven body 11 has an open inner cavity.

[0043] Optionally, the oven may also include a door that matches the oven body 11. When the door is closed, the interior of the oven body 11 is sealed. In this case, if air separation is performed on the interior of the oven body 11, outside air will not fill into the interior of the cavity and affect the air separation result.

[0044] Oxygen sensor 12 is used to detect the oxygen content of the air inside the cavity of the oven body 11.

[0045] The gas separation system 13 is used to extract air from the inner cavity, filter the extracted air to remove oxygen, and refill the inner cavity with the filtered air.

[0046] Optionally, the gas separation system 13 includes an air compressor 131 and a gas separation device 132. For example... Figure 2 As shown, the first end of the air compressor 131 is connected to the air inlet, and the second end is connected to the first end of the gas separation device.

[0047] Air compressor 131 is used to draw air from the inner cavity through the air inlet and deliver the drawn air to gas separation device 132.

[0048] The second end of the gas separator 132 is connected to the air outlet 138, and the third end of the gas separator 132 is connected to the outside of the oven. The gas separator 132 is used to filter oxygen from the air delivered by the air compressor 131. The filtered oxygen is discharged through the third end of the gas separator 132. The filtered air is then refilled into the inner cavity through the second end of the gas separator.

[0049] Optionally, an oxygen exhaust valve is provided at the third end of the gas separation device 132, through which the filtered oxygen can be discharged.

[0050] In some embodiments, the gas separation system further includes:

[0051] The filter 133 has one end connected to the air inlet 130 and the other end connected to the first end of the air compressor; the filter is used to remove impurities from the air in the inner cavity; and the air with the impurities removed is delivered to the air compressor 131.

[0052] Optionally, an air inlet valve may be installed at the air inlet 130 and an air outlet valve may be installed at the air outlet 138 to control the flow of air in the gas separation system.

[0053] It should be noted that during the operation of the gas separation system 13, the air inside the oven 100 cavity first enters the gas separation system 13 through the air inlet 130. The air entering the gas separation system 13 first passes through the filter 133 to remove impurities. Then, it enters the air compressor 131 through the connecting pipe 135. The air compressor 131 can then deliver the extracted air to the gas separation device 132 through the connecting pipe 136. The gas separation device 132 then performs oxygen removal processing on the air delivered by the air compressor 131. Finally, the oxygen-removed air is delivered to the air outlet 138 through the connecting pipe 137 to refill the oven 100 cavity. In addition, the removed oxygen can also be discharged through the oxygen exhaust valve 139 of the gas separation device 132.

[0054] In some embodiments, such as Figure 2 As shown, the oven 100 may also include a refrigeration device 134, which is used to cool the air in the pipeline between the second end of the gas separator and the air outlet 138.

[0055] Optionally, the cooling device 134 can be a semiconductor cooling plate, such as...Figure 3 As shown.

[0056] In some embodiments, such as Figure 4 As shown, the oven 100 may also include a temperature sensor 15 for detecting the temperature inside the cavity.

[0057] Optionally, the temperature sensor 15 can be an NTC temperature sensor. NTC (negative temperature coefficient) refers to the phenomenon and material of a thermistor whose resistance decreases exponentially with increasing temperature.

[0058] In some embodiments, the oven 100 may further include a control screen module 16, which may include a touchpad and a display. The touchpad can collect touch events of the user on or near the mobile phone (such as the user's operation on or near the touchpad using a finger, stylus, or any suitable object), and send the collected touch information to other devices such as the controller 14.

[0059] Furthermore, the components of the oven 100 can also be as follows: Figure 5 The cross-sectional view is shown in the figure.

[0060] Figure 6 The diagram shown is a hardware configuration block diagram of an oven provided in this application according to an exemplary embodiment. Figure 6 As shown, the oven 100 may also include a communicator 17 and a memory 18.

[0061] In some embodiments, the communicator 17 is used to establish communication connections with other network entities, such as establishing communication connections with terminal devices. The communicator 17 may include a radio frequency (RF) module, a cellular module, a wireless fidelity (WIFI) module, and a GPS module, etc. Taking an RF module as an example, the RF module can be used for signal reception and transmission; specifically, it sends received information to the controller 14 for processing; additionally, it transmits signals generated by the controller 14. Typically, the RF circuit may include, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier (LNA), a duplexer, etc.

[0062] The memory 18 can be used to store software programs and data. The controller 14 executes various functions of the oven 100 and performs data processing by running the software programs or data stored in the memory 18. The memory 18 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. The memory 18 stores the operating system that enables the oven 100 to run. In this application, the memory 18 may store the operating system and various application programs, and may also store code that executes the oven control method provided in the embodiments of this application.

[0063] Those skilled in the art will understand that Figure 6 The hardware structure shown does not constitute a limitation on oven 100. Oven 100 may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0064] The embodiments provided in this application will now be described in detail with reference to the accompanying drawings.

[0065] This application provides a control method for an oven, applied to the controller 14 in the oven 100 described above. For example... Figure 7 As shown, the control method may include the following steps:

[0066] S101, Receive the start command for low-oxygen cooking mode.

[0067] The low-oxygen cooking mode is one operating mode of the oven provided in this application embodiment. When the oven operates in low-oxygen cooking mode, the oxygen content in the air inside the oven cavity can be reduced during the cooking process. That is, in this mode, the oven can create a low-oxygen environment for cooking food.

[0068] In addition, the aforementioned start command for the low-oxygen cooking mode is used to instruct the oven to begin operating the low-oxygen cooking mode.

[0069] For example, when a user wants to cook food in a low-oxygen environment, the user can input an instruction on the oven (e.g., via the oven's control panel module 16) to run the low-oxygen cooking mode, and the oven can then receive the start command for the low-oxygen cooking mode.

[0070] For example, when the oven is connected to a user's terminal device, in response to an instruction input on the user's terminal device to operate the oven in a low-oxygen cooking mode, the terminal device can send a start command for the low-oxygen cooking mode to the oven. Correspondingly, the oven can receive the start command for the low-oxygen cooking mode sent by the user's terminal device.

[0071] For example, based on the oven's timer cooking function, users can schedule a low-oxygen cooking mode. Then, when the user-set time arrives, the oven will receive the start command for the low-oxygen cooking mode.

[0072] Of course, in practical applications, the oven can also obtain the start command of the low-oxygen cooking mode in other ways, and this application embodiment does not limit this.

[0073] S102, in response to the start command of the low-oxygen cooking mode, obtains the oxygen content of the air in the cavity through the oxygen sensor.

[0074] The oxygen content of the air inside the cavity is the ratio of oxygen content to the total gas content in the air. In practice, the oxygen content in the air is typically around 21%. Furthermore, the air also contains 78% nitrogen and 1% other gases.

[0075] Upon receiving the start command for the low-oxygen cooking mode, the oven controller responds by using an oxygen sensor to obtain the oxygen content of the air inside the cavity.

[0076] Alternatively, upon receiving the start command for the low-oxygen cooking mode and after confirming that the user has placed the food inside the oven cavity, the oven controller can obtain the oxygen content of the air inside the cavity through an oxygen sensor.

[0077] In some embodiments, after the oven receives the start command for the low-oxygen cooking mode, the oven can periodically obtain the oxygen content of the air inside the cavity at a preset frequency until the oven stops running the low-oxygen cooking mode.

[0078] The preset frequency can be any frequency, such as once every 1 minute, once every 3 minutes, or once every 10 minutes.

[0079] It should be noted that after the oven receives the start command for the low-oxygen cooking mode, in order to ensure a low oxygen content in the air inside the cavity so that the food is always in a low-oxygen environment, the oven controller can monitor the oxygen content inside the cavity in real time throughout the entire process of running the low-oxygen cooking mode. Therefore, the oven can periodically obtain the oxygen content of the air inside the cavity at a preset frequency when running the low-oxygen cooking mode, and further execute the following step S103 to control the oxygen content of the air inside the cavity.

[0080] S103. When the oxygen content of the air in the inner cavity is greater than the first oxygen content threshold, control the gas separation system to work so that the oxygen content of the air in the inner cavity is reduced to the first oxygen content threshold.

[0081] The aforementioned first oxygen content threshold can be 5%, 3%, or other possible ratios.

[0082] When the oxygen content of the air inside the oven cavity is less than or equal to the first oxygen content threshold mentioned above, the environment inside the oven cavity, i.e. the environment where the food is located, meets the low oxygen environment required by the embodiments of this application. That is, in the low oxygen cooking mode mentioned above, the controller needs to keep the oxygen content of the air inside the oven cavity less than or equal to the first oxygen content threshold mentioned above.

[0083] Therefore, when the oven is running in low-oxygen cooking mode, if the oxygen content of the air inside the cavity is greater than the first oxygen content threshold, the oven controller can control the gas separation system to work, so as to filter out oxygen from the air inside the cavity and reduce the oxygen content of the air inside the cavity.

[0084] Based on the steps described in S102 above, the oven can periodically acquire the oxygen content of the air inside the cavity at a preset frequency when operating the low-oxygen cooking mode. Therefore, after the oven controller activates the gas separation system, if the acquired oxygen content of the air inside the cavity is less than or equal to the aforementioned first oxygen content threshold, the oven controller can control the gas separation system to pause operation, thereby halting the oxygen filtration process of the air inside the cavity. Alternatively, if the acquired oxygen content of the air inside the cavity is still greater than the aforementioned first oxygen content threshold, the oven controller can control the gas separation system to continue operating, so that the oxygen content of the air inside the cavity decreases to the first oxygen content threshold.

[0085] In some embodiments, when the oxygen content of the air in the cavity is less than or equal to a first oxygen content threshold, the oven controller can control the gas separation system to remain inactive.

[0086] In some embodiments, the oven control method provided in this application can also be as follows: Figure 8 The logic block diagram shown includes the following steps S11-S15:

[0087] S11, The controller receives the start command for the low-oxygen cooking mode.

[0088] S12, The controller obtains the oxygen content of the air inside the cavity.

[0089] S13. The controller determines whether the oxygen content of the air in the cavity is greater than the first oxygen content threshold.

[0090] If so, proceed with step S14 below.

[0091] If not, proceed to step S15 below.

[0092] S14, The controller controls the separation of the system operation.

[0093] The controller repeats steps S12-S14 until the oxygen content of the air inside the oven cavity is less than or equal to the first oxygen content threshold.

[0094] S15, the controller control body separation system stops working.

[0095] The technical solution provided in this application provides at least the following beneficial effects: This application sets a low-oxygen cooking mode for the oven, and in this low-oxygen cooking mode, by controlling the working state of the gas separation system, the oxygen content inside the oven cavity is controlled to maintain the oxygen content less than or equal to a first oxygen content threshold. Thus, during the oven cooking process, the food inside is in a cavity with a low oxygen content, which can reduce the degree of oxidation of the food during cooking, thereby preserving the food's freshness. For example, it reduces the degree of surface color change during oxidation and avoids the loss of nutrients during oxidation, thereby improving the taste of the cooked dish.

[0096] In some embodiments, this application also provides another method for controlling the oven, such as... Figure 9 As shown, the method includes the following steps:

[0097] S201, Receive cooking reservation instructions.

[0098] When a user wants to cook ingredients in advance, the user can input an instruction to the oven to schedule cooking on the oven (e.g., via the oven's control panel module 16). The oven can then receive the scheduled cooking instruction.

[0099] Alternatively, if the oven is connected to the user's terminal device, in response to an instruction input on the user's terminal device to schedule cooking, the terminal device can send the aforementioned scheduled cooking command to the oven. Correspondingly, the oven can receive the scheduled cooking command sent by the user's terminal device.

[0100] Of course, in practical applications, ovens can also obtain the above-mentioned scheduled cooking instructions through other means, and this application embodiment does not limit this.

[0101] The aforementioned scheduled cooking instruction includes a first temperature threshold and a second oxygen content threshold.

[0102] For example, the first temperature threshold can be 5°C, 0°C, -2°C, or other possible food refrigeration temperatures. The second oxygen content can also be 5%, 3%, or other possible ratios. It should be understood that the second oxygen content can be the same as the first oxygen content described above, or the second oxygen content can be different from the first oxygen content described above.

[0103] Optionally, the first temperature threshold and the second oxygen content threshold can be set by the user when issuing a pre-cooking instruction to the oven, or the first temperature threshold and the second oxygen content threshold can be preset temperature thresholds and oxygen content thresholds corresponding to the pre-cooking mode.

[0104] In addition, the aforementioned cooking reservation instructions may also include reservation information such as reservation duration and cooking mode. For example, the reservation duration may be 2 hours, 3 hours, or other possible durations, and the cooking mode may be the aforementioned low-oxygen cooking mode, or it may be a yogurt mode, a low-temperature baking mode, or a high-temperature baking mode, or other possible cooking modes that the oven may have.

[0105] It should be understood that scheduled cooking includes a scheduling phase and a cooking phase. The scheduling duration included in the cooking instructions is the duration of the scheduling phase, and the cooking mode included in the cooking instructions is the cooking mode in which the oven operates during the cooking phase. When users are away from home, they can schedule cooking in advance and set an appropriate scheduling duration. In this way, the oven will have cooked the dishes set by the user when they return home, thus saving the user time and bringing more convenience.

[0106] However, if the timer is long, such as 3 or 5 hours, food left in the oven for an extended period will oxidize before cooking begins, resulting in less fresh food. Therefore, the oven can also preserve the food during the timer setting to ensure it is fresh for the user.

[0107] S202, In response to the scheduled cooking command, the oxygen content of the air inside the cavity is obtained through an oxygen sensor, and the temperature inside the cavity is obtained through a temperature sensor.

[0108] Upon receiving a pre-cooking instruction for the low-oxygen cooking mode, the oven controller responds by obtaining the oxygen content of the air inside the cavity via an oxygen sensor and the temperature inside the cavity via a temperature sensor.

[0109] Alternatively, upon receiving a pre-cooking instruction and confirming that the user has placed the food inside the oven cavity, the oven controller can obtain the oxygen content of the air inside the cavity through an oxygen sensor and the temperature inside the cavity through a temperature sensor.

[0110] In some embodiments, after the oven receives a pre-cooking instruction for a low-oxygen cooking mode, the oven can obtain the oxygen content of the air inside the cavity at the preset frequency and obtain the temperature inside the cavity through a temperature sensor until the oven's pre-set time expires.

[0111] It should be noted that, in order to preserve food during the preset cooking stage, the oven may perform step S203 to preserve food using a low-oxygen method, and / or step S204 to preserve food using a low-temperature method. Therefore, the oven controller needs to obtain the oxygen content of the air inside the cavity through an oxygen sensor, and the temperature inside the cavity through a temperature sensor.

[0112] S203. When the oxygen content of the air in the inner cavity is greater than the second oxygen content threshold, control the gas separation system to work so that the oxygen content of the air in the inner cavity is reduced to the second oxygen content threshold.

[0113] It should be noted that, similar to the low-oxygen cooking mode described above, when the oxygen content of the air inside the oven cavity is less than or equal to the second oxygen content threshold, the environment inside the oven cavity, i.e., where the food is located, meets the low-oxygen environment required by the embodiments of this application. That is, during the above-mentioned reservation stage, the controller needs to keep the oxygen content of the air inside the oven cavity less than or equal to the second oxygen content threshold.

[0114] Therefore, during the pre-cooking reservation stage, if the oxygen content of the air inside the cavity is greater than the first oxygen content threshold, the oven controller can activate the gas separation system to filter out oxygen from the air inside the cavity and reduce its oxygen content.

[0115] Based on step S202 above, the oven can periodically acquire the oxygen content of the air inside the cavity at a preset frequency during the pre-set phase. Therefore, after the oven controller activates the gas separation system, if the acquired oxygen content of the air inside the cavity is less than or equal to the aforementioned second oxygen content threshold, the oven controller can control the gas separation system to pause operation, thereby halting the oxygen filtration process of the air inside the cavity. Alternatively, if the acquired oxygen content of the air inside the cavity is still greater than the aforementioned second oxygen content threshold, the oven controller can control the gas separation system to continue operating, so that the oxygen content of the air inside the cavity decreases to the second oxygen content threshold.

[0116] In some embodiments, when the oxygen content of the air in the cavity is less than or equal to a second oxygen content threshold, the oven controller can control the gas separation system to remain inactive.

[0117] S204. When the temperature inside the cavity is greater than the first temperature threshold, control the refrigeration device to work so that the temperature inside the cavity is reduced to the first temperature threshold.

[0118] It should be noted that during the aforementioned reservation phase, the oven can refrigerate the food inside the cavity. That is, during the aforementioned reservation phase, the controller needs to maintain the temperature inside the oven cavity at a level less than or equal to the aforementioned first temperature threshold.

[0119] Therefore, during the pre-cooking reservation stage, if the temperature inside the cavity exceeds the first temperature threshold, the oven controller can activate the cooling device to cool the environment inside the cavity.

[0120] Based on the steps described in S202 above, the oven can periodically acquire the temperature inside the cavity at a preset frequency during the pre-set phase. Therefore, after the oven controller activates the cooling device, if the acquired air temperature inside the cavity is less than or equal to the aforementioned first temperature threshold, the oven controller can control the cooling device to pause operation, thereby halting the cooling process inside the cavity. Alternatively, if the acquired temperature inside the cavity is still greater than the aforementioned first temperature threshold, the oven controller can control the cooling device to continue operating, thereby reducing the temperature inside the cavity to the first temperature threshold.

[0121] In some embodiments, when the temperature inside the cavity is less than or equal to a first temperature threshold, the oven controller can control the refrigeration device to remain in a non-operating state.

[0122] In some embodiments, the oven control method provided in this application can also be as follows: Figure 10 The logic block diagram shown includes the following steps S21-S29:

[0123] S21, The controller receives the scheduled cooking command.

[0124] S22, The controller obtains the oxygen content of the air inside the cavity.

[0125] S23. The controller determines whether the oxygen content of the air in the cavity is greater than the second oxygen content threshold.

[0126] If so, proceed to step S24 below.

[0127] If not, proceed to step S25 below.

[0128] S24, The controller controls the separation of the system operation.

[0129] The controller repeats steps S22-S24 until the oxygen content of the air inside the oven cavity is less than or equal to the second oxygen content threshold.

[0130] S25, the controller control body separation system stops working.

[0131] S26, The controller obtains the temperature inside the cavity.

[0132] S27. The controller determines whether the temperature inside the cavity is greater than the first temperature threshold.

[0133] If so, proceed to step S28 below.

[0134] If not, proceed to step S29 below.

[0135] S28, The controller controls the operation of the refrigeration unit.

[0136] The controller repeats steps S27-S28 until the temperature inside the oven cavity is less than or equal to the first temperature threshold.

[0137] S29. The controller stops the operation of the refrigeration unit.

[0138] Based on the above embodiments, the degree of oxidation of food before cooking can be reduced by creating a low-oxygen and low-temperature environment for the food. For example, the degree of surface color change during oxidation can be reduced, and the loss of nutrients in the food can be avoided during the oxidation process, so as to achieve food preservation during the reservation stage of scheduled cooking.

[0139] In some embodiments, based on the above Figure 7 The oven control method shown is as follows: Figure 11 As shown, the method may further include the following steps:

[0140] S104. After cooking is finished, control the refrigeration device to operate so that the temperature inside the cavity drops to the second temperature threshold.

[0141] The second temperature threshold can be 5°C, 0°C, -2°C, or other possible food refrigeration temperatures. The second oxygen content can also be 5%, 3%, or other possible ratios. It should be understood that the second temperature threshold can be the same as the first temperature threshold, or it can be different from the first temperature threshold.

[0142] Optionally, the second temperature threshold can be set by the user, or the second temperature threshold can be the preset storage temperature of the finished dish inside the oven.

[0143] In some embodiments, after cooking is complete, the oven controller can periodically acquire the temperature inside the cavity via a temperature sensor at a preset frequency. If the temperature inside the cavity exceeds the second temperature threshold, the controller activates the cooling device to lower the temperature inside the cavity to the second temperature threshold. Alternatively, if the temperature inside the cavity is less than or equal to the second temperature threshold, the cooling process inside the cavity is paused. Alternatively, if the acquired temperature inside the cavity still exceeds the second temperature threshold, the oven controller can keep the cooling device inactive.

[0144] The various solutions in the above embodiments of this application can be combined without contradiction.

[0145] As can be seen, the above mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, the embodiments of this application provide corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the modules and algorithm steps of the various examples described in the embodiments disclosed herein, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention.

[0146] This application embodiment can divide the controller into functional modules according to the above method example. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. Optionally, the module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0147] This application also provides a hardware structure diagram of a controller, such as... Figure 12 As shown, the controller 2000 includes a processor 2001, and optionally, a memory 2002 and a communication interface 2003 connected to the processor 2001. The processor 2001, memory 2002, and communication interface 2003 are connected via a bus 2004.

[0148] Processor 2001 may be a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. Processor 2001 may also be any other device with processing capabilities, such as a circuit, device, or software module. Processor 2001 may also include multiple CPUs, and processor 2001 may be a single-core processor or a multi-core processor. Here, "processor" may refer to one or more devices, circuits, or processing cores used to process data (e.g., computer program instructions).

[0149] The memory 2002 can be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or it can be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer. This application embodiment does not impose any limitations on this. The memory 2002 can exist independently or be integrated with the processor 2001. The memory 2002 may contain computer program code. The processor 2001 is used to execute the computer program code stored in the memory 2002, thereby implementing the oven control method provided in this application embodiment.

[0150] The communication interface 2003 can be used to communicate with other devices or communication networks (such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.). The communication interface 2003 can be a module, circuit, transceiver, or any device capable of enabling communication.

[0151] Bus 2004 can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. Bus 2004 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 12 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0152] This invention also provides a computer-readable storage medium including computer-executable instructions. When the computer-executable instructions are executed on the computer, the computer performs an oven control method as provided in the above embodiments.

[0153] This invention also provides a computer program product that can be directly loaded into a memory and contains software code. After being loaded and executed by a computer, the computer program product can realize the control method of an oven system provided in the above embodiments.

[0154] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in this invention can be implemented using hardware, software, firmware, or any combination thereof. When implemented in software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium accessible to a general-purpose or special-purpose computer.

[0155] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0156] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and other division methods may exist in actual implementation. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate; components shown as units may be one physical unit or multiple physical units, i.e., they may be located in one place or distributed in multiple different places. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0157] Furthermore, the functional units in the various embodiments of this invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0158] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An oven, characterized in that, include: The oven body has an open interior cavity; The inner cavity is provided with an air inlet and an air outlet; An oxygen sensor is used to detect the oxygen content of the air inside the cavity; The gas separation system includes: an air compressor and a gas separation device; The first end of the air compressor is connected to the air inlet, and the second end is connected to the first end of the gas separator; the air compressor is used to draw air from the inner cavity from the air inlet and deliver the drawn air to the gas separator. The second end of the gas separator is connected to the air outlet, and the third end of the gas separator is connected to the outside of the oven; the gas separator is used to filter oxygen from the air supplied by the air compressor; the filtered oxygen is discharged through the third end of the gas separator; and the filtered air is refilled into the inner cavity through the second end of the gas separator. A refrigeration device, which is used to cool the air in the pipeline between the second end of the gas separator and the outlet. The controller is configured as follows: Receives the start command for low-oxygen cooking mode; In response to the start command of the low-oxygen cooking mode, the oxygen content of the air in the cavity is periodically obtained through the oxygen sensor at a preset frequency; When the oxygen content of the air in the inner cavity is greater than a first oxygen content threshold, the gas separation system is controlled to work so that the oxygen content of the air in the inner cavity is reduced to the first oxygen content threshold. The gas separation system also includes: A filter, one end of which is connected to the air inlet and the other end of which is connected to the first end of the air compressor; the filter is used to remove impurities from the air in the inner cavity; and the air with the impurities removed is delivered to the air compressor.

2. The oven according to claim 1, characterized in that, The oven also includes: A temperature sensor is used to detect the temperature inside the cavity; The controller is also configured to: Receive a scheduled cooking instruction, the scheduled cooking instruction including a first temperature threshold and a second oxygen content threshold; In response to a scheduled cooking command, the oxygen content of the air inside the cavity is obtained through the oxygen sensor, and the temperature inside the cavity is obtained through the temperature sensor. When the oxygen content of the air within the inner cavity is greater than the second oxygen content threshold, the gas separation system is controlled to operate, so that the oxygen content of the air within the inner cavity is reduced to the second oxygen content threshold; and / or, When the temperature inside the cavity is greater than the first temperature threshold, the cooling device is controlled to operate so that the temperature inside the cavity is reduced to the first temperature threshold.

3. The oven according to claim 2, characterized in that, The controller is also configured to: After cooking is finished, the refrigeration device is controlled to operate so that the temperature inside the cavity is reduced to a second temperature threshold.

4. A method for controlling an oven, characterized in that, Applied to the oven according to any one of claims 1-3, the method comprises: Receives the start command for low-oxygen cooking mode; In response to the start command of the low-oxygen cooking mode, the oxygen content of the air in the cavity is periodically obtained through the oxygen sensor at a preset frequency; When the oxygen content of the air in the inner cavity is greater than a first oxygen content threshold, the gas separation system is controlled to work so that the oxygen content of the air in the inner cavity is reduced to the first oxygen content threshold. The control of the gas separation system includes: The air compressor is controlled to draw air from the inner cavity through the air inlet and deliver the drawn air to the gas separation device. The gas separation device is controlled to filter oxygen from the air, and the filtered oxygen is discharged through the third end of the gas separation device. The gas separation device is controlled to refill the inner cavity with the air after oxygen has been filtered out through the exhaust port.

5. The method according to claim 4, characterized in that, The method further includes: Receive a scheduled cooking instruction, the scheduled cooking instruction including a first temperature threshold and a second oxygen content threshold; In response to a scheduled cooking command, the oxygen content of the air inside the cavity is obtained through the oxygen sensor, and the temperature inside the cavity is obtained through the temperature sensor. When the oxygen content of the air within the inner cavity is greater than the second oxygen content threshold, the gas separation system is controlled to operate, so that the oxygen content of the air within the inner cavity is reduced to the second oxygen content threshold; and / or, When the temperature inside the cavity is greater than the first temperature threshold, the cooling device is controlled to operate so that the temperature inside the cavity is reduced to the first temperature threshold.

6. The method according to claim 4 or 5, characterized in that, The method further includes: After cooking is finished, the refrigeration device is controlled to operate so that the temperature inside the cavity is reduced to a second temperature threshold.

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