Control method for opening and closing a lid of a cooking device and related device

Abstract

This invention provides a control method and related equipment for opening and locking a cooking device. The cooking device includes a cooking body and a lid, which are connected in an openable and closable manner via a locking mechanism. The control method includes: controlling the rotation of a motor of the locking mechanism to drive the movable latch of the locking mechanism to perform a preset action, which includes locking or opening the lid; during the rotation of the motor, real-time detection of sensor signals characterizing the completion status of the preset action and current AD values ​​characterizing the load status of the motor; and combining the sensor signals and the current AD values ​​to determine whether the movable latch has completed the preset action or whether a transmission failure has occurred. This invention achieves monitoring and judgment of the lid opening and locking process through dual signal feedback from sensors and the load, improving the reliability of action execution and enabling fault identification.

Description

Technical Field

[0001] This invention relates to the field of cooking equipment technology, and in particular to a control method and related equipment for opening and locking the lid of a cooking device. Background Technology

[0002] Pressure cookers, rice cookers, and other cooking appliances are common kitchen appliances in modern households. Traditionally, locking and unlocking the lids of these appliances usually requires manual operation by the user. However, with the development of smart technology, in order to support remote control of cooking appliances, more and more of these appliances can automatically lock and unlock the lids. However, most existing solutions for automatically locking and unlocking the lids are based on controlling the motor's running time, and cannot determine whether the lid is locked properly, let alone whether any abnormalities have occurred during the locking process.

[0003] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0004] This invention provides a control method and related equipment for opening and locking the lid of a cooking device. The main purpose of this invention is to solve the technical problems mentioned in the background art of the prior art.

[0005] The first aspect of the present invention provides a control method for opening and locking a cooking device, the cooking device including a cooking body and a lid, the cooking body and the lid being closably connected by a locking mechanism, the control method including: The motor controlling the locking mechanism rotates, driving the movable latch of the locking mechanism to perform a set action, the set action including locking the cover or opening the cover; During the rotation of the motor, sensor signals that characterize the position of the set action are detected in real time, and the current AD value that characterizes the load state of the motor is detected in real time. By combining the sensor signal and the current AD value, it is determined whether the movable latch has completed the set action or whether the movable latch has experienced a transmission failure.

[0006] In an optional embodiment of the first aspect of the present invention, the locking action includes: Control the motor to rotate in the first direction until a first sensor signal is detected that indicates the active latch has been locked in place; After detecting the first sensor signal, the motor continues to rotate in the first direction until the current AD value is greater than the first preset threshold, at which point the motor stops and completes the locking process.

[0007] In an optional embodiment of the first aspect of the present invention, the opening action includes: Control the motor to rotate in a second direction opposite to the first direction until a second sensor signal is detected that indicates the active latch has been opened into place; After detecting the second sensor signal, the motor continues to rotate in the second direction until the current AD value is greater than the second preset threshold, at which point the motor stops and the cover is opened.

[0008] In an optional embodiment of the first aspect of the present invention, the method for determining the transmission fault includes: If, during the period when neither the first sensor signal nor the second sensor signal is detected, the current AD value is detected to be continuously greater than the third preset threshold for a preset duration, it is determined that the active latch has experienced a transmission failure.

[0009] In an optional embodiment of the first aspect of the present invention, the step of determining whether the movable latch has completed the set action or whether the movable latch has experienced a transmission failure by combining the sensor signal and the current AD value includes: If it is determined that the movable latch has a transmission failure, the motor is controlled to perform a preset short-term or preset rotation angle reverse rotation. After the reverse rotation at the preset short time or preset rotation angle is completed, the rotation in the original direction is restored, and the set action and the judgment of the transmission fault continue to be performed.

[0010] In an optional embodiment of the first aspect of the present invention, the control method further includes: When the active lock is in the locked state, after the cooking device experiences a power outage and is powered back on, the gas pressure detection inside the cooking device is performed.

[0011] In an optional embodiment of the first aspect of the invention, the step of performing the pressure detection within the cooking apparatus includes: If the gas pressure inside the cooking device is detected to be greater than the outside atmospheric pressure, an venting operation is performed before the opening action is required to reduce the gas pressure inside the cooking device to a safe value. If the gas pressure inside the cooking device is detected to be equal to the external atmospheric pressure, the opening action is performed directly.

[0012] A second aspect of the present invention provides a control device for opening and locking a cooking appliance, the cooking appliance comprising a cooking body and a lid, the cooking body and the lid being closably connected by a locking mechanism, the control device comprising: The motor control module is used to control the rotation of the motor of the locking mechanism and drive the movable latch of the locking mechanism to perform a set action, which includes locking the cover or opening the cover. The status data acquisition module is used to detect in real time the sensor signal that represents the position of the set action during the rotation of the motor, and to detect in real time the current AD value that represents the load state of the motor. The result judgment module is used to combine the sensor signal and the current AD value to determine whether the movable latch has completed the set action or whether the movable latch has experienced a transmission failure.

[0013] A third aspect of the present invention provides a control device for opening and locking the lid of a cooking appliance, the control device comprising: a memory and at least one processor, wherein the memory stores instructions, and the memory and the at least one processor are interconnected via a circuit; The at least one processor invokes the instructions in the memory to cause the control device for opening and locking the lid of the cooking device to execute the control method for opening and locking the lid of the cooking device as described in any one of the first aspects of the present invention.

[0014] A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements a control method for opening and locking a cooking device as described in any one of the first aspects of the present invention.

[0015] Beneficial Effects: This invention provides a control method and related equipment for opening and locking a cooking device. The cooking device includes a cooking body and a lid, which are connected in an openable and closable manner via a locking mechanism. The control method includes: controlling the rotation of a motor of the locking mechanism to drive the movable latch of the locking mechanism to perform a set action, which includes locking or opening the lid; during the rotation of the motor, real-time detection of sensor signals characterizing the completion status of the set action, and real-time detection of a current AD value characterizing the load status of the motor; combining the sensor signals and the current AD value to determine whether the movable latch has completed the set action or whether a transmission failure has occurred. This invention, through dual signal feedback from sensors and the load, achieves monitoring and judgment of the lid opening and locking process, improves the reliability of action execution, and enables fault identification. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the locking mechanism in the open state of the present invention; Figure 2 This is a schematic diagram of an embodiment of a locking mechanism in a locked state, as exemplarily provided by the present invention; Figure 3This is a schematic diagram of an embodiment of a control method for opening and locking the lid of a cooking device according to the present invention; Figure 4 This is a schematic diagram of an embodiment of the device locking process in an exemplary cooking scenario according to the present invention; Figure 5 This is a schematic diagram of an embodiment of the device opening process in an exemplary cooking scenario according to the present invention; Figure 6 This is a schematic diagram of an embodiment of a control device for opening and locking the lid of a cooking appliance, as exemplarily provided by the present invention; Figure 7 This is a schematic diagram of an embodiment of a control device for opening and locking the lid of a cooking appliance, which is an exemplary embodiment of the present invention. Detailed Implementation

[0017] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" or "having" and any variations thereof are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0018] The first aspect of this invention provides a control method for opening and locking the lid of a cooking device. The cooking device includes a cooking body and a lid, and the cooking body and the lid are connected in an openable and closable manner by a locking mechanism. (See also...) Figure 1 and Figure 2The locking mechanism includes a motor 001 (including a stepper motor) and a movable latch 002. The motor is directly or indirectly connected to a gear 003. One end of the movable latch 002 is rotatable around a center point, and the other end of the movable latch 002 is provided with a transmission tooth. The gear 003 and the transmission tooth mesh with each other. The locking mechanism can be set on the cooking body or on the lid. The cooking device also includes a position detection system. The position detection system includes a magnetic unit 004 (including a magnet), multiple magnetic induction sensors 005 (including Hall sensors), and a control board 006. The magnetic unit 004 is installed on the movable latch 002. The multiple magnetic induction sensors 005 are set at the positions where position detection is required. The motor 001 and the magnetic induction sensors 005 are both connected to the control board 006 through wires. The control board 006 is mainly used to issue drive commands to the motor 001 and collect the current AD value fed back by the motor 001 in real time, as well as receive the sensor signals fed back by the magnetic induction sensors 005.

[0019] Taking the locking mechanism as an example, which is provided on the cover, see... Figure 1 and Figure 2 In this invention, one end of the movable latch 002 is rotatably connected to the center of the cover, and the other end of the movable latch 002 is provided with the gear 003 and the motor 001 on the cover. The control board 006 is disposed between the movable latch 002 and the cover. Two magnetic induction sensors 005 are spaced apart on the control board 006, one of which (the first Hall sensor) is located at the first position of the movable latch 002 during the opening movement (shown as clockwise movement), and the other magnetic induction sensor 005 (the second Hall sensor) is located at the... When the movable latch 002 moves to its second position (shown as counter-clockwise), the magnetic unit 004 is fixedly mounted on the movable latch 002 and moves with it. In the first position, the magnetic unit 004 on the movable latch 002 senses the first Hall sensor on the control board 006 below it, causing it to conduct and generate a first sensor signal. In the second position, the magnetic unit 004 on the movable latch 002 senses the second Hall sensor on the control board 006 below it, causing it to conduct and generate a second sensor signal.

[0020] See Figure 3 The control method includes: S100. Control the motor of the locking mechanism to rotate, and drive the movable latch of the locking mechanism to perform a set action, the set action including locking the cover or opening the cover.

[0021] In an optional embodiment of the first aspect of the present invention, the locking action includes: controlling the motor to rotate in a first direction until a first sensor signal indicating that the active latch has been locked in place is detected; after detecting the first sensor signal, continuing to control the motor to rotate in the first direction until the current AD value is greater than a first preset threshold, and the motor stops to complete the locking action.

[0022] Specifically, the locking process of the lid in this invention can be as follows: when the user starts the cooking program or issues a locking command, the control board sends a command to the motor to make the motor rotate in the first direction (clockwise in the figure), and the movable latch moves counterclockwise to the locking position. During the rotation of the motor, the control board continuously detects the output status of the second Hall sensor to determine whether the first sensor signal representing the locking position has been received.

[0023] When the second Hall sensor is triggered, the control board receives the signal from the first sensor, indicating that the movable latch has rotated to the locked position. At this time, in order to ensure that the movable latch is sealed and securely fastened to the cooking body, the control board will continue to control the motor to rotate a short distance in the first direction, while monitoring the current AD value. When the current AD value exceeds the first preset threshold due to increased resistance (indicating that the current AD value is fully locked), the control board determines that the locking action is completely completed and then stops the motor.

[0024] In an optional embodiment of the first aspect of the present invention, the opening action includes: controlling the motor to rotate in a second direction opposite to the first direction until a second sensor signal for indicating that the active latch has been opened to the correct position is detected; after detecting the second sensor signal, continuing to control the motor to rotate in the second direction until the current AD value is greater than a second preset threshold, at which point the motor stops to complete the opening.

[0025] Specifically, the opening process of the present invention can be as follows: when cooking is finished or the user issues an opening command, the control board sends a command to the motor to make it rotate in the second direction (counterclockwise direction in the figure), and the movable latch moves clockwise to the open position. Similarly, the control board continuously monitors the output status of the first Hall sensor to determine whether it has received the second sensor signal representing that the lid is in place.

[0026] When the first Hall sensor is triggered, the control board receives the signal from the second sensor, indicating that the movable latch has rotated to the open position. At this time, in order to ensure that the movable latch is completely released from the cooking body, the control board will continue to control the motor to rotate a short distance in the second direction, while monitoring the current AD value. When the current AD value exceeds the second preset threshold (indicating that the current AD value has reached the mechanical limit), the control board determines that the opening action is completely completed and then stops the motor.

[0027] S200: During the rotation of the motor, sensor signals characterizing the position of the set action are detected in real time, and the current AD value characterizing the load state of the motor is detected in real time. In this invention, the methods for acquiring sensor signals for the set action and detecting the current AD value in step S200 have been described in detail in step S100 above, and will not be repeated here.

[0028] S300: Combining the sensor signal and the current AD value, determine whether the movable latch has completed the set action or whether the movable latch has experienced a transmission failure. Similarly, in this invention, the specific process for determining whether the movable latch has completed the set action has been described in detail in step S100 above, and will not be repeated here.

[0029] In an optional embodiment of the first aspect of the present invention, the method for determining whether the active latch has experienced a transmission failure includes: if, during the process of not detecting the first sensor signal or the second sensor signal, the current AD value is detected to be continuously greater than a third preset threshold for a preset duration, then it is determined that the active latch has experienced a transmission failure.

[0030] Specifically, taking the locking process as an example, in this invention, if the motor current AD value is continuously greater than the third preset threshold and reaches a preset duration (e.g., 2 seconds) before the first sensor signal is detected (i.e., the second Hall sensor is not turned on), the control board will determine that a "locking transmission failure" has occurred. For the opening process, if the motor current AD value is continuously greater than the third preset threshold and reaches a preset duration before the second sensor signal is detected (i.e., the first Hall sensor is not turned on), the control board will determine that a "opening transmission failure" has occurred.

[0031] In an optional embodiment of the first aspect of the present invention, the step of determining whether the movable latch has completed the set action or whether the movable latch has experienced a transmission failure by combining the sensor signal and the current AD value includes: if it is determined that the movable latch has experienced a transmission failure, controlling the motor to perform a reverse rotation for a preset short time (e.g., 0.5s) or a preset rotation angle (e.g., 20°); after the reverse rotation of the preset short time or the preset rotation angle is completed, resuming the rotation in the original direction, and continuing to perform the set action and the determination of the transmission failure.

[0032] Specifically, in this invention, when the active latch experiences a "cover locking transmission failure" or a "cover opening transmission failure," the control board will briefly control the motor to rotate in the opposite direction of the current movement direction (the cover opening action is the motor briefly changing from counterclockwise to clockwise, and the cover locking action is the motor briefly changing from clockwise to counterclockwise) for a short period of time or angle to attempt to release the jam. Then, it will resume the original rotation direction (the cover opening action is counterclockwise, and the cover locking action is clockwise) and continue to execute the set action.

[0033] In an optional embodiment of the first aspect of the present invention, the control method further includes: when the movable latch is in the locked state, after the cooking device experiences a power outage and is re-energized, performing a pressure detection inside the cooking device; if the pressure inside the cooking device is detected to be greater than the external atmospheric pressure, then before performing the opening action, performing an venting operation to reduce the pressure inside the cooking device to a safe value; if the pressure inside the cooking device is detected to be equal to the external atmospheric pressure, then directly performing the opening action.

[0034] Specifically, the present invention also includes a power failure recovery safety process, which is mainly aimed at the special scenario of the cooking device being unexpectedly powered off and then restored to power while it is in the locked position. The safety process can be as follows: After the cooking device is powered on again, the control board determines through program logic that it is currently in an unexpected standby state, but the mechanical structure may still be in the locked position. At this time, the control board will not immediately execute the opening action. The control board first calls the air pressure sensor in the container of the cooking body to detect the current air pressure value in the container.

[0035] If the detected air pressure inside the container is not greater than the external atmospheric pressure, it means that there is no dangerous pressure inside the container. At this time, the control board will directly start and execute the opening action in step S100 above.

[0036] If the air pressure inside the container is detected to be greater than the external atmospheric pressure, it indicates that there is a risk of pressure leakage inside the container. At this time, the control board will prohibit the opening action and prioritize the activation of the exhaust valve on the lid that is connected to the container to perform the exhaust operation. During the exhaust process, the control board will continuously monitor the air pressure inside the container until the air pressure drops to a safe level equal to the external atmospheric pressure before initiating the opening action in step S100 above.

[0037] To better understand the technical solution of this invention, this invention is described using a complete cooking process: like Figure 4As shown, the cooking device starts working and locks the lid. The control board sends a signal to the stepper motor to operate, causing the stepper motor to rotate clockwise, driving the gear transmission. The gear drives the movable latch to rotate counterclockwise. At the same time, the current AD value of the stepper motor is detected and judged in real time. When Hall 2 (the second Hall sensor) is not conducting, the current AD value is judged. When the current AD value is greater than the set threshold (i.e., the third preset threshold), and the cumulative time is >5 seconds, a lid locking fault is reported. When the current AD is not greater than the set threshold, the stepper motor continues to work until Hall 2 is detected to be conducting, and the lid locking is completed when the current AD value is detected to be greater than the set threshold (i.e., the first preset threshold). When the current AD value is greater than the set threshold and the cumulative time is >5 seconds, the motor can be rotated counterclockwise first and then clockwise to continue judging the current AD value. This operation can reduce the probability of jamming.

[0038] like Figure 5 As shown, once the cooking equipment finishes cooking, the lid is opened. The control board sends a signal to the stepper motor to operate. The stepper motor drives the gear transmission counterclockwise, which in turn drives the movable latch to rotate clockwise. Simultaneously, the current AD value of the stepper motor is detected and judged in real time. When Hall 1 (the first Hall sensor) is not conducting, the current AD value is judged. When the current AD value is greater than the set threshold (i.e., the third preset threshold), and the cumulative time is >5 seconds, a lid opening fault is reported. When the current AD value is not greater than the set threshold, the stepper motor continues to work until Hall 1 is detected to be conducting, until the current AD value is detected to be greater than the threshold (i.e., the second preset threshold), and the lid opening is completed. When the current AD value is greater than the set threshold and the cumulative time is >5 seconds, the motor can be rotated clockwise first, then counterclockwise, and the current AD value can be judged again. This operation can reduce slight jamming caused by external factors.

[0039] When the cooking device is in operation and the lid is locked, if the power is cut off and then restored, the device returns to standby mode. The program needs to make a judgment; if the internal air pressure is lower than atmospheric pressure, it can proceed directly. Figure 3 The opening procedure involves first venting the air when the internal pressure is greater than atmospheric pressure. Venting continues until the internal pressure is lower than atmospheric pressure, at which point the next step is executed. Figure 5 Opening process.

[0040] In summary, by combining the position signal of the Hall sensor with the dynamic load signal of the motor current, this invention not only achieves precise and reliable automatic opening and locking control, but also designs an intelligent fault handling mechanism and a comprehensive safety protection logic after power failure, thereby improving the product's automation level, success rate, and safety.

[0041] A second aspect of the present invention provides a control device for opening and locking the lid of a cooking device, the cooking device including a cooking body and a lid, wherein the cooking body and the lid are connected in an openable and closable manner by a locking mechanism. (See also...) Figure 6 The control device includes: The motor control module 10 is used to control the rotation of the motor of the locking mechanism and drive the movable latch of the locking mechanism to perform a set action, which includes locking the cover or opening the cover. The status data acquisition module 20 is used to detect in real time the sensor signal that represents the position of the set action during the rotation of the motor, and to detect in real time the current AD value that represents the load state of the motor. The result judgment module 30 is used to combine the sensor signal and the current AD value to determine whether the movable latch has completed the set action or whether the movable latch has experienced a transmission failure.

[0042] In an optional embodiment of the second aspect of the present invention, the locking action includes: Control the motor to rotate in the first direction until a first sensor signal is detected that indicates the active latch has been locked in place; After detecting the first sensor signal, the motor continues to rotate in the first direction until the current AD value is greater than the first preset threshold, at which point the motor stops and completes the locking process.

[0043] In an optional embodiment of the second aspect of the present invention, the opening action includes: Control the motor to rotate in a second direction opposite to the first direction until a second sensor signal is detected that indicates the active latch has been opened into place; After detecting the second sensor signal, the motor continues to rotate in the second direction until the current AD value is greater than the second preset threshold, at which point the motor stops and the cover is opened.

[0044] In an optional embodiment of the second aspect of the present invention, the method for determining the transmission fault includes: If, during the period when neither the first sensor signal nor the second sensor signal is detected, the current AD value is detected to be continuously greater than the third preset threshold for a preset duration, it is determined that the active latch has experienced a transmission failure.

[0045] In an optional embodiment of the second aspect of the invention, the control device further includes: The error correction module is used to control the motor to perform a preset short-term or preset rotation angle reverse rotation if it is determined that the active latch has a transmission failure; and after the preset short-term or preset rotation angle reverse rotation is completed, it resumes rotation in the original direction and continues to perform the set action and the determination of the transmission failure.

[0046] In an optional embodiment of the second aspect of the invention, the control device further includes: The air pressure detection module is used to perform air pressure detection in the cooking device when the movable lock is in the locked state and the cooking device experiences a power outage and is then powered back on.

[0047] In an optional embodiment of the first aspect of the invention, the step of performing the pressure detection within the cooking apparatus includes: If the gas pressure inside the cooking device is detected to be greater than the outside atmospheric pressure, an venting operation is performed before the opening action is required to reduce the gas pressure inside the cooking device to a safe value. If the gas pressure inside the cooking device is detected to be equal to the external atmospheric pressure, the opening action is performed directly.

[0048] Figure 7 This is a schematic diagram of the structure of a control device for opening and locking the lid of a cooking appliance according to an embodiment of the present invention. This control device can vary considerably depending on its configuration or performance, and may include one or more processors 40 (central processing units, CPUs) (e.g., one or more processors) and a memory 50, and one or more storage media 60 (e.g., one or more mass storage devices) for storing applications or data. The memory and storage media can be short-term or long-term storage. The program stored in the storage media may include one or more modules (not shown in the diagram), each module including a series of instruction operations on the control device for opening and locking the lid of the cooking appliance. Furthermore, the processor may be configured to communicate with the storage media and execute the series of instruction operations in the storage media on the control device for opening and locking the lid of the cooking appliance.

[0049] The control device for opening and locking the lid of the cooking appliance of the present invention may further include one or more power supplies 70, one or more wired or wireless network interfaces 80, one or more input / output interfaces 90, and / or one or more operating systems, such as Windows Server, Mac OS X, Unix, Linux, FreeBSD, etc. Those skilled in the art will understand that... Figure 7The control device structure for opening and locking the lid of the cooking appliance shown does not constitute a limitation on the control device for opening and locking the lid of the cooking appliance. It may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0050] The present invention also provides a computer-readable storage medium, which can be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium, wherein the computer-readable storage medium stores instructions that, when the instructions are executed on a computer, cause the computer to perform the steps of the control method for opening and locking the lid of the cooking device.

[0051] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system or system / unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0052] 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 computer-readable storage medium. Based on this understanding, the technical solution of the present invention, 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 computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0053] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling the opening and locking of a cooking appliance, characterized in that, The cooking device includes a cooking body and a lid, the cooking body and the lid being closably connected via a locking mechanism, and the control method includes: The motor controlling the locking mechanism rotates, driving the movable latch of the locking mechanism to perform a set action, the set action including locking the cover or opening the cover; During the rotation of the motor, sensor signals that characterize the position of the set action are detected in real time, and the current AD value that characterizes the load state of the motor is detected in real time. By combining the sensor signal and the current AD value, it is determined whether the movable latch has completed the set action or whether the movable latch has experienced a transmission failure.

2. The control method for opening and locking the lid of the cooking equipment according to claim 1, characterized in that, The locking action includes: Control the motor to rotate in the first direction until a first sensor signal is detected that indicates the active latch has been locked in place; After detecting the first sensor signal, the motor continues to rotate in the first direction until the current AD value is greater than the first preset threshold, at which point the motor stops and completes the locking process.

3. The control method for opening and locking the lid of a cooking device according to claim 2, characterized in that, The opening action includes: Control the motor to rotate in a second direction opposite to the first direction until a second sensor signal is detected that indicates the active latch has been opened into place; After detecting the second sensor signal, the motor continues to rotate in the second direction until the current AD value is greater than the second preset threshold, at which point the motor stops and the cover is opened.

4. The control method for opening and locking the lid of the cooking device according to claim 3, characterized in that, The method for determining transmission faults includes: If, during the period when neither the first sensor signal nor the second sensor signal is detected, the current AD value is detected to be continuously greater than the third preset threshold for a preset duration, it is determined that the active latch has experienced a transmission failure.

5. The control method for opening and locking the lid of the cooking device according to claim 4, characterized in that, The step of determining whether the movable latch has completed the set action or whether the movable latch has experienced a transmission failure by combining the sensor signal and the current AD value includes: If it is determined that the movable latch has a transmission failure, the motor is controlled to perform a preset short-term or preset rotation angle reverse rotation. After the reverse rotation at the preset short time or preset rotation angle is completed, the rotation in the original direction is restored, and the set action and the judgment of the transmission fault continue to be performed.

6. The control method for opening and locking the lid of a cooking device according to claim 1, characterized in that, The control method further includes: When the active lock is in the locked state, after the cooking device experiences a power outage and is powered back on, the gas pressure detection inside the cooking device is performed.

7. The control method for opening and locking the lid of a cooking device according to claim 6, characterized in that, After performing the gas pressure detection within the cooking device, the following is included: If the gas pressure inside the cooking device is detected to be greater than the outside atmospheric pressure, an venting operation is performed before the opening action is required to reduce the gas pressure inside the cooking device to a safe value. If the gas pressure inside the cooking device is detected to be equal to the external atmospheric pressure, the opening action is performed directly.

8. A control device for opening and locking the lid of a cooking appliance, characterized in that, The cooking device includes a cooking body and a lid, the cooking body and the lid being closable via a locking mechanism, and the control device includes: The motor control module is used to control the rotation of the motor of the locking mechanism and drive the movable latch of the locking mechanism to perform a set action, which includes locking the cover or opening the cover. The status data acquisition module is used to detect in real time the sensor signal that represents the position of the set action during the rotation of the motor, and to detect in real time the current AD value that represents the load state of the motor. The result judgment module is used to combine the sensor signal and the current AD value to determine whether the movable latch has completed the set action or whether the movable latch has experienced a transmission failure.

9. A control device for opening and locking the lid of a cooking appliance, characterized in that, The control device for opening and locking the lid of the cooking device includes: a memory and at least one processor, wherein the memory stores instructions, and the memory and the at least one processor are interconnected by a line; The at least one processor invokes the instructions in the memory to cause the control device for opening and locking the lid of the cooking device to execute the control method for opening and locking the lid of the cooking device as described in any one of claims 1-7.

10. A computer-readable storage medium storing a computer program thereon, characterized in that, When the computer program is executed by the processor, it implements the control method for opening and locking the lid of the cooking device as described in any one of claims 1-7.

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