Control method and control equipment of vacuum storage device, computer readable storage medium and computer program product

Abstract

The invention relates to the technical field of vacuum storage equipment, in particular to a control method and control equipment of a vacuum storage device, a computer readable storage medium and a computer program product. The control method comprises the following steps: determining a drawer opening and closing state based on a door magnetic signal; when the drawer opening and closing state is an opening state, if a drawer closing instruction is received, the drawer driving motor is controlled to execute a drawer closing action; when the opening and closing state of the drawer is converted from the opening state to the closing state, the drawer closing action is stopped, and the vacuum pump is controlled to work; an air pressure value in the bin is obtained, and when the air pressure value in the bin is consistent with a preset air pressure threshold value, the vacuum pump is controlled to stop; and if a drawer opening instruction is received, the pressure release valve is controlled to be opened, the drawer opening and closing state is adjusted to be an opening state, and the drawer driving motor is controlled to execute the drawer opening action. And the intelligence and the safety of the vacuum storage device are improved.

Description

Technical Field

[0001] This application relates to the field of vacuum storage equipment technology, and in particular to control methods, control equipment, computer-readable storage media, and computer program products for vacuum storage devices. Background Technology

[0002] Household vacuum cabinets are an important storage device widely used in scenarios where items need to be stored in the absence of air, such as clothing storage, moisture protection for valuables, and oxidation prevention for important documents, in order to extend the storage period of items and reduce damage caused by oxidation and moisture.

[0003] Most mainstream vacuum cabinet products on the market currently only offer basic functionality, with generally low levels of automation. In particular, most drawer opening mechanisms rely on traditional manual designs, requiring users to manually pull or push the drawer, manually activate the vacuum pump, or manually open the pressure relief valve, resulting in poor ease of operation. Especially in scenarios involving frequent storage and retrieval of items, this operation is not only time-consuming and laborious but also prone to causing seal failure or equipment damage due to improper user operation.

[0004] Currently, there are two main types of opening methods for household vacuum cabinet drawers: one is a fully manual pull-out type, where the user needs to pull the drawer handle directly; the other is a semi-automatic spring-assisted type, which uses a built-in spring mechanism to reduce the force required to open. The manual pull-out type is simple in structure but requires considerable effort to operate, especially when fully loaded. While the spring-assisted type reduces the opening force, it is susceptible to spring aging and failure, and it cannot achieve precise control. Furthermore, neither of these methods allows for remote control or integration with other automated systems.

[0005] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Summary of the Invention

[0006] The main objective of this application is to provide a control method, control device, computer-readable storage medium, and computer program product for a vacuum storage device, aiming to solve the technical problem of the lack of automated integration capability in the current drawer opening method of vacuum storage devices.

[0007] To achieve the above objectives, this application proposes a control method for a vacuum storage device, the control method comprising: Based on the door magnetic signal, the drawer switch status is determined, including the open state and the closed state. When the drawer switch is in the open state, if a drawer closing command is received, the drawer drive motor is controlled to perform the drawer closing action; When the drawer switch state changes from the open state to the closed state, the drawer closing action is stopped, and the vacuum pump is controlled to work. The air pressure inside the chamber is obtained, and when the air pressure inside the chamber is consistent with the preset air pressure threshold, the vacuum pump is controlled to stop. If a drawer opening command is received, the pressure relief valve is opened, the drawer switch state is adjusted to the open state, and the drawer drive motor is controlled to perform the drawer opening action.

[0008] Optionally, the step of stopping the drawer closing action and controlling the vacuum pump to operate when the drawer switch state changes from the open state to the closed state includes: After the drawer drive motor stops performing the drawer closing action, the plasma generator is started to release plasma; According to the preset disinfection time, the plasma generator is controlled to stop working and a disinfection completion signal is generated; Based on the disinfection completion signal, the vacuum pump is controlled to start and perform a vacuuming operation.

[0009] Optionally, after the step of acquiring the chamber pressure value and controlling the vacuum pump to stop when the chamber pressure value matches a preset pressure threshold, the method further includes: Determine the air pressure maintenance threshold based on the preset air pressure threshold; The air pressure inside the chamber is monitored. When the air pressure inside the chamber is higher than the air pressure maintenance threshold, the vacuum pump is started to perform a supplementary pumping operation until the air pressure inside the chamber is restored to the preset air pressure threshold.

[0010] Optionally, after the step of acquiring the chamber pressure value and controlling the vacuum pump to stop when the chamber pressure value matches a preset pressure threshold, the method further includes: Monitor the air pressure inside the chamber. When the air pressure inside the chamber is lower than the pressure tolerance threshold, control the pressure relief valve to open until the air pressure inside the chamber returns to the preset air pressure threshold. Wherein, the air pressure maintenance threshold is higher than the preset air pressure threshold, the preset air pressure threshold is higher than or equal to the pressure tolerance threshold, and the pressure tolerance threshold is equal to -25 kPa.

[0011] Optionally, the steps of controlling the pressure relief valve to open, adjusting the drawer switch state to the open state, and controlling the drawer drive motor to perform the drawer opening action upon receiving a drawer opening command include: According to the drawer opening command, the pressure relief valve is opened, and the air pressure value inside the compartment is monitored; When the air pressure inside the compartment equals the safe air pressure, the drawer drive motor is controlled to open the drawer and the drawer switch state is adjusted to the open state.

[0012] Optionally, the step of acquiring the chamber pressure value and controlling the vacuum pump to stop when the chamber pressure value matches a preset pressure threshold further includes: Based on the air pressure value inside the chamber, an air pressure change curve is generated; Based on the pressure change curve, monitor abnormal signals during the vacuuming process; If the slope of the pressure change curve becomes flat and the pressure value inside the chamber is greater than the preset pressure threshold, a sealing abnormality signal is generated. Based on the sealing error signal, a sealing error prompt is output.

[0013] Optionally, after the steps of receiving a drawer opening command, controlling the pressure relief valve to open, adjusting the drawer switch state to the open state, and controlling the drawer drive motor to perform the drawer opening action, the method further includes: If no drawer closing command is received within the preset opening time, an opening timeout prompt is output, and the drawer drive motor is controlled to perform the drawer closing action.

[0014] In addition, to achieve the above objectives, this application also proposes a control device for a vacuum storage device, the control device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method for the vacuum storage device as described above.

[0015] In addition, to achieve the above objectives, this application also proposes a readable storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the control method for the vacuum storage device as described above.

[0016] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the control method for the vacuum storage device as described above.

[0017] One or more technical solutions proposed in this application have at least the following technical effects: By using door magnetic signals to determine the drawer's open / closed state, the system achieves precise sensing of the drawer's closed state, thereby triggering subsequent vacuuming or depressurization actions. When the door magnetic signal switches from the first to the second signal, the system determines that the drawer is open and prohibits the vacuum pump from starting, ensuring operational safety. Conversely, when the door magnetic signal returns from the second to the first signal, the system confirms that the drawer is completely closed, meeting the conditions for vacuuming, and automatically initiates the evacuation process. This avoids equipment damage or vacuum failure caused by misoperation, improving the intelligence and safety of the vacuum storage device. Through the coordinated control of the door magnetic signal, vacuum pump, depressurization valve, and drawer drive motor, the entire process is automated. Based on real-time collected door magnetic signals, internal air pressure values, preset air pressure thresholds, and user commands, the system dynamically adjusts the working sequence and state of each component of the vacuum storage device, ensuring that vacuuming, pressure holding, depressurization, and drawer opening and closing operations are interconnected, safe, and orderly. This ensures the safety and convenience of users when storing and retrieving items, while also guaranteeing the stable establishment and maintenance of the vacuum environment. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A flowchart illustrating an embodiment of the control method for the vacuum storage device of this application; Figure 2 Another flowchart illustrating the control method for the vacuum storage device of this application (Example 1) Figure 3 A flowchart illustrating Embodiment 2 of the control method for the vacuum storage device of this application; Figure 4 This is a schematic diagram of the hardware operating environment of the control equipment of the vacuum storage device involved in the embodiments of this application.

[0021] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0023] It should be noted that in the description of this application and the appended claims, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0025] It should be noted that the executing entity in this embodiment can be an electronic device with data processing, network communication and program running functions, such as a tablet computer, personal computer, mobile phone, etc., or an electronic device capable of realizing the above functions.

[0026] Reference Figures 1 to 2 In this embodiment, the control method of the vacuum storage device includes steps S100 to S500: Step S100: Based on the door magnetic signal, determine the drawer switch state, which includes an open state and a closed state.

[0027] It should be noted that the vacuum storage device includes a vacuum cabinet, a drawer that seals with the vacuum cabinet, a door magnetic sensor, a drawer drive motor, a vacuum pump, and a pressure relief valve located between the drawer and the vacuum cabinet. The door magnetic sensor detects the relative position between the drawer and the vacuum cabinet. When the drawer is fully closed, the door magnetic sensor generates a closing signal; when the drawer is not fully closed or is open, it generates an opening signal. Based on the feedback from the door magnetic signal, the open / closed state of the drawer is determined, providing a basis for the subsequent start / stop control of the vacuum pump and pressure relief valve. The drawer drive motor controls the automatic opening and closing of the drawer. The drawer drive motor, along with the door magnetic sensor, vacuum pump, and pressure relief valve, works in conjunction to achieve intelligent operation of the vacuum storage device. The vacuum pump extracts air from the vacuum cabinet, creating a negative pressure environment inside, thereby achieving vacuum preservation of the stored items. The pressure relief valve is used to introduce outside air into the vacuum cabinet when it is necessary to open the drawer, releasing the negative pressure.

[0028] In this embodiment, the door magnetic signal is divided into a first door magnetic signal and a second door magnetic signal, corresponding to the triggered state when the drawer is fully closed and the non-triggered state when it is not fully closed or open, respectively. When the first door magnetic signal is detected, the drawer is determined to be in a closed state; when the second door magnetic signal is detected, the drawer is determined to be in an open state. This determination mechanism can effectively avoid vacuum seal failure caused by the drawer not being fully closed, thereby improving the safety and reliability of the vacuum storage device during use.

[0029] Step S200: When the drawer switch is in the open state, if a drawer closing command is received, control the drawer drive motor to perform the drawer closing action.

[0030] In this embodiment, the drawer closing command can be sent remotely by the user via a touch panel, voice control, or mobile terminal, or input by the user via buttons or sensors, or automatically triggered by the system based on preset conditions. Upon determining that the drawer is open and receiving the closing command, the drawer drive motor is activated, driving the drawer to slide into the vacuum cabinet and close. During the closing process, the door magnetic sensor continuously monitors the drawer position until the drawer is fully closed. The door magnetic sensor then sends back a first door magnetic signal, confirming that the drawer has entered the closed state. At this point, the system determines that the sealing conditions are met, preparing for subsequent vacuum extraction.

[0031] Optionally, the drawer drive motor is equipped with a position feedback mechanism during operation. This mechanism monitors the movement status of the vacuum cabinet drawer in real time, providing feedback on the drawer's position and status. If motor overload or obstruction is detected, the drawer drive motor is stopped. Specifically, real-time monitoring can be achieved using an encoder or limit switches to prevent equipment damage due to motor overload or obstruction.

[0032] In step S300, when the drawer switch state changes from the open state to the closed state, the drawer closing action is stopped, and the vacuum pump is controlled to work.

[0033] In this embodiment, when the door magnetic signal switches from the second door magnetic signal to the first door magnetic signal, it is determined that the drawer is fully closed. The drawer's open / closed state is then adjusted to the closed state, and the drawer drive motor is immediately stopped to cut off power output and prevent overshoot or damage to the mechanism. Simultaneously, the vacuum pump is started to evacuate the interior of the vacuum cabinet. This allows the vacuum storage device to automatically complete the vacuuming operation after automatic closing, improving the automation level of the vacuum storage device and preventing spoilage or damage to stored items due to the user forgetting to vacuum.

[0034] It should be noted that the start and stop of the vacuum pump not only depends on the state switching of the door magnetic signal, but also on the signal of the air pressure sensor inside the vacuum cabinet. The vacuum pump will only be started to pump air when it is confirmed that the drawer is completely closed and the air pressure value inside the vacuum cabinet is higher than the preset air pressure threshold.

[0035] Step S400: Obtain the air pressure value inside the chamber, and when the air pressure value inside the chamber is consistent with the preset air pressure threshold, control the vacuum pump to stop.

[0036] In this embodiment, a pressure sensor collects real-time pressure data within the vacuum chamber to obtain the chamber's internal pressure value. This value is then compared to a preset pressure threshold. When the two values ​​converge, the vacuum environment is deemed to have met the set requirements, and the vacuum pump is shut off, terminating the evacuation process. It should be noted that the preset pressure threshold can be customized to suit the needs of different stored items. For example, a lower pressure can be set for dry items, while a higher threshold can be used for fragile foods to retain some buffer gas. Throughout this process, the system continuously monitors pressure changes to prevent excessive vacuuming that could cause container deformation or seal failure. This ensures that the vacuum environment meets preservation requirements without damaging the stored items or equipment due to excessive vacuuming, while also improving system stability.

[0037] Optionally, after vacuuming is completed, a notification message indicating completion is displayed, informing the user that the storage environment has reached the preset vacuum standard. This can be achieved through a display screen or indicator lights. Furthermore, the display screen can display information such as completion time, vacuum pump runtime, internal pressure, and preset pressure threshold, allowing users to easily monitor the storage status.

[0038] In step S500, if a drawer opening command is received, the pressure relief valve is controlled to open, the drawer switch state is adjusted to the open state, and the drawer drive motor is controlled to perform the drawer opening action.

[0039] In this embodiment, upon receiving a drawer opening command from the user via a button or sensor, the system first activates the pressure relief valve, allowing external gas to slowly inject into the vacuum cabinet until the internal pressure returns to normal. At this point, the drawer drive motor starts, smoothly sliding the drawer out to ensure easy access for the user to remove or place items. Throughout the opening process, the system monitors the pressure relief rate and drawer displacement in real time to prevent equipment damage or usage risks caused by rapid pressure changes or abrupt mechanical movements. Furthermore, by opening the pressure relief valve first, the internal and external pressures of the vacuum cabinet are gradually balanced, preventing difficulties in opening the drawer or abnormal noises due to excessive pressure differences. Once the pressure is balanced, the drawer drive motor starts, executing the drawer opening action, and simultaneously, the door magnetic signal switches to a second door magnetic signal to confirm that the drawer is open.

[0040] After the drawer drive motor completes the drawer opening action, it outputs a prompt message corresponding to the open status, indicating to the user that storage or retrieval operations are possible. Specifically, the drawer open status prompt message can be displayed through a buzzer, indicator light, or display screen, ensuring that the user is promptly informed of the operation result.

[0041] Furthermore, to accommodate the storage of items requiring high cleanliness, step S300 also includes steps S310 to S330: Step S310: After the drawer drive motor stops performing the drawer closing action, the plasma generator is controlled to start and release plasma; Step S320: According to the preset disinfection time, control the plasma generator to stop working and generate a disinfection completion signal; Step S330: Based on the disinfection completion signal, control the vacuum pump to start and perform a vacuuming operation.

[0042] It should be noted that the plasma generator produces highly oxidizing active particles by ionizing air, which can kill bacteria, viruses and mold spores attached to the inside of the vacuum cabinet and to the stored items, thus purifying the storage environment.

[0043] In this embodiment, after the drawer is closed, a plasma sterilization process is automatically executed. By activating the plasma generator to release plasma, bacteria, viruses and various microorganisms in the vacuum cabinet are killed, thereby improving the cleanliness of the storage environment and further ensuring the safety of storing items that require a sterile environment.

[0044] Optionally, the plasma sterilization process is completed within a preset sterilization time, ensuring sterilization effectiveness while avoiding excessive energy consumption. After sterilization, the vacuum pump is activated to evacuate the vacuum cabinet, further isolating it from external microorganisms and moisture, maintaining a sterile and dry storage environment.

[0045] This embodiment does not specify a particular disinfection time, which can be set according to the storage needs of different types of items in the actual application scenario. For example, for the storage of paper documents, the disinfection time can be set to 3 minutes to avoid fiber aging; for the storage of precious metal items, the disinfection time can be set to 5 minutes to ensure that surface microorganisms are completely inactivated; for the storage of leather items, the disinfection time can be set to 8 minutes to balance the sterilization effect and material tolerance.

[0046] By automatically triggering both plasma sterilization and vacuuming upon drawer closure, the cleanliness and safety of stored items are further ensured. Different sterilization time settings correspond to different item types, balancing sterilization efficiency and material protection, thus enhancing the system's intelligence and applicability.

[0047] As a possible implementation method, in order to further ensure safety when opening the drawer and avoid the drawer being difficult to open or items being impacted due to pressure differences, step S500 may include steps S510 to S520: Step S510: According to the drawer opening command, open the pressure relief valve and monitor the air pressure value inside the compartment; Step S520: When the air pressure inside the compartment is equal to the safe air pressure, control the drawer drive motor to perform the drawer opening action and adjust the drawer switch state to the open state.

[0048] It should be noted that the safe air pressure value can be 90% to 100% of one standard atmosphere. The drawer should only be opened when the air pressure inside the compartment is basically balanced with the outside air pressure to avoid difficulty in opening due to negative pressure or airflow impacting the internal items. After the pressure relief valve is opened, the gas inside the compartment gradually connects with the outside air, and the change in the air pressure value inside the compartment is monitored in real time by a pressure sensor until it reaches a safe range.

[0049] When the pressure sensor detects that the internal pressure has entered a safe range, it automatically triggers the drawer drive motor to open the drawer, ensuring smooth operation without physical resistance. Simultaneously, the drawer's open / closed status is updated to "open," allowing users to monitor the device's status in real time via the control panel or mobile device. This prevents item displacement or structural damage caused by sudden release of the vacuum environment, improving the safety and convenience of human-machine interaction.

[0050] Optionally, the venting rate of the pressure relief valve can be dynamically adjusted according to the material properties and size of the stored items. For lightweight materials susceptible to airflow impact, such as paper documents or textiles, a low-speed, slow-release mode is used to prevent internal items from shifting or being worn due to turbulence. For metal items or tightly sealed packages, a high-speed pressure relief mode is activated to shorten waiting time and improve drawer opening efficiency. The venting rate can be controlled through the solenoid valve opening degree and feedback control algorithm to ensure a smooth and controllable pressure equalization process.

[0051] In addition, when the drawer drive motor performs the drawer opening action, the operating current and speed of the drawer drive motor can be monitored to determine in real time whether the drawer movement is obstructed; if abnormal resistance is detected, the drawer drive motor is controlled to immediately stop the action and output an alarm prompt to prevent the equipment from being forcibly opened, causing mechanical damage or user injury, and ensuring operational safety.

[0052] By controlling the pressure relief valve, comparing the air pressure inside the chamber with the safe air pressure, and coordinating the control of the drawer drive motor, the problem of difficulty in opening the drawers of traditional vacuum cabinets in vacuum or negative pressure environments is avoided, thus achieving automation and safety protection in the drawer opening process.

[0053] Furthermore, after step S500, the method may further include: if no drawer closing command is received within a preset opening time, outputting an opening timeout prompt, and controlling the drawer drive motor to perform a drawer closing action.

[0054] In this embodiment, if the drawer remains open for a certain period of time and no drawer closing command is received after the preset open time, an open timeout prompt is output to remind the user, and the drawer drive motor is controlled to perform the drawer closing action, thereby preventing the user from forgetting to close the drawer, which could lead to environmental pollution inside the storage compartment or moisture oxidation of the items.

[0055] The preset operating time can be set according to the usage scenario, and this application does not impose specific restrictions on it. For example, in high humidity environments or places with high cleanliness requirements, the operating time can be shortened to reduce the risk of outside air intrusion. Operating timeout alerts can be issued via audible and visual alarms, control panel prompts, or mobile push notifications to ensure users are promptly notified of any abnormalities.

[0056] In the technical solution provided in this embodiment, the drawer's open / closed state is determined based on the door magnetic signal, achieving precise sensing of the drawer's closed state and triggering subsequent vacuuming or depressurization actions. When the door magnetic signal switches from the first door magnetic signal to the second door magnetic signal, the system determines that the drawer is open and prohibits the vacuum pump from starting, ensuring operational safety. Conversely, when the door magnetic signal returns from the second door magnetic signal to the first door magnetic signal, the system confirms that the drawer is completely closed, meeting the conditions for vacuuming, and automatically enters the evacuation process. This avoids equipment damage or vacuum failure caused by misoperation, improving the intelligence and safety of the vacuum storage device. Through the coordinated control of the door magnetic signal, vacuum pump, depressurization valve, and drawer drive motor, fully automated control is achieved. Based on the real-time collected door magnetic signal, internal air pressure value, preset air pressure threshold, and user commands, the system dynamically adjusts the working sequence and state of each actuator of the vacuum storage device, ensuring that vacuuming, pressure holding, depressurization, and drawer opening and closing operations are interconnected, safe, and orderly, ensuring the safety and convenience of users when storing and retrieving items, while also ensuring the stable establishment and maintenance of the vacuum environment.

[0057] Based on the first embodiment of this application, a second embodiment of the control method for the vacuum storage device of this application is proposed. In this embodiment, content that is the same as or similar to that in the first embodiment described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 3 After step S400, the control method of the vacuum storage device further includes steps S410 to S420: Step S410: Determine the air pressure maintenance threshold based on the preset air pressure threshold; Step S420: Monitor the air pressure value inside the chamber. When the air pressure value inside the chamber is higher than the air pressure maintenance threshold, start the vacuum pump to perform a supplementary pumping operation until the air pressure value inside the chamber is restored to the preset air pressure threshold.

[0058] It should be noted that the pressure maintenance threshold is higher than the preset pressure threshold. Specifically, the pressure maintenance threshold can be set to 1.1 to 1.3 times the preset pressure threshold to avoid increased energy consumption or equipment damage caused by frequent start-ups and shutdowns of the vacuum pump. Understandably, when there is a minor leak in the vacuum chamber or the external ambient temperature rises, the pressure inside the chamber will gradually increase. If the pressure inside the chamber exceeds the pressure maintenance threshold, the vacuum pump will be started to perform a supplementary pumping operation to restore the pressure inside the chamber to the preset pressure threshold.

[0059] By setting a reasonable difference between the pressure maintenance threshold and the preset pressure threshold, the long-term stability of the vacuum environment is ensured, while the start-stop frequency of the vacuum pump is effectively reduced, balancing energy efficiency and performance and extending the equipment's service life. This not only enhances the adaptability of the vacuum storage device to complex environments but also improves its intelligence level, ensuring that items inside the chamber remain in a stable vacuum, low-oxygen environment for extended periods, enhancing moisture and oxidation prevention, and meeting users' needs for high-quality storage.

[0060] Further, after step S400, the method may include: monitoring the internal air pressure value; when the internal air pressure value is lower than the pressure tolerance threshold, controlling the pressure relief valve to open until the internal air pressure value recovers to the preset air pressure threshold. Wherein, the air pressure maintenance threshold is higher than the preset air pressure threshold, the preset air pressure threshold is higher than or equal to the pressure tolerance threshold, and the pressure tolerance threshold is equal to -25 kPa.

[0061] In this embodiment, the pressure withstand threshold is a fixed safety value that cannot be adjusted by the user, used to prevent excessive negative pressure inside the chamber from causing deformation of the vacuum cabinet or damage to the sealing structure. It can be set to 90% to 95% of the vacuum cabinet's physical pressure withstand limit to ensure the structural safety of the equipment under extreme operating conditions. Understandably, for vacuum cabinets used in household vacuum storage devices, their volume is typically between 30 and 50 liters, and their wall thickness and materials can withstand a maximum negative pressure of -30 kPa. By monitoring the air pressure inside the chamber and setting a pressure tolerance threshold, when excessive negative pressure is detected inside the chamber or the air pressure inside the chamber is lower than the pressure tolerance threshold, the pressure relief valve is opened to allow outside air to slowly enter the vacuum cabinet until the air pressure inside the chamber rises back to the preset air pressure threshold, thereby avoiding structural damage to the vacuum cabinet due to excessive negative pressure.

[0062] As an optional implementation, in order to promptly detect leakage problems caused by the vacuum cabinet drawer not being closed tightly or the sealing ring aging, step S400 may further include: generating a pressure change curve based on the air pressure value inside the chamber; monitoring abnormal signals during the vacuuming process according to the air pressure change curve; if the slope of the air pressure change curve tends to flatten and the air pressure value inside the chamber is greater than the preset air pressure threshold, generating a sealing abnormality signal; and outputting a sealing abnormality prompt based on the sealing abnormality signal.

[0063] The system generates a pressure change curve to capture the dynamic trends during the vacuuming process in real time. When the slope of the pressure change curve flattens out within a short period and the internal pressure does not reach the preset pressure threshold, it indicates a sealing defect or abnormal vacuuming efficiency. This generates a sealing anomaly signal, reminding the user to check the drawer closure status or the performance of the sealing ring to avoid insufficient vacuum due to sealing failure, which would affect storage performance. This intelligent diagnosis and early warning of sealing status further improves the reliability of the vacuum storage device.

[0064] This application provides a control device for a vacuum storage device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the control method for the vacuum storage device described in the above embodiments.

[0065] The following is for reference. Figure 4 The diagram illustrates a structural schematic of a control device suitable for implementing the vacuum storage device of the embodiments of this application. The control device for the vacuum storage device in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 4 The vacuum storage device shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of this application.

[0066] like Figure 4As shown, the control device of the vacuum storage device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the control device of the vacuum storage device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the control equipment of the vacuum storage device to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows control equipment for a vacuum storage device with various systems, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems may be implemented alternatively.

[0067] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0068] The control device for the vacuum storage device provided in this application adopts the control method for the vacuum storage device in the above embodiments. Compared with the prior art, the beneficial effects of the control device for the vacuum storage device provided in this application are the same as the beneficial effects of the control method for the vacuum storage device provided in the above embodiments. Furthermore, the other technical features of the control device for the vacuum storage device are the same as the features disclosed in the method of the previous embodiment, and will not be described in detail here.

[0069] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0070] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology 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.

[0071] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the control method of the vacuum storage device in the above embodiments.

[0072] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0073] The aforementioned computer-readable storage medium may be included in the control device of the vacuum storage device; or it may exist independently and not assembled into the control device of the vacuum storage device.

[0074] The aforementioned computer-readable storage medium carries one or more programs, which, when executed by the control device of the vacuum storage device, cause the control device of the vacuum storage device to perform the functions defined in the methods of the embodiments disclosed in this application.

[0075] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0076] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0077] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0078] The computer-readable storage medium provided in this application stores computer-readable program instructions (i.e., computer programs) for executing the control method of the vacuum storage device described above. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the control method of the vacuum storage device provided in the above embodiments, and will not be repeated here.

[0079] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the control method for the vacuum storage device as described above.

[0080] Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the control method of the vacuum storage device provided in the above embodiments, and will not be repeated here.

[0081] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A control method of a vacuum storage device including a vacuum cabinet, a drawer sealed in cooperation with the vacuum cabinet, a drawer driving motor, a vacuum pump, and a pressure relief valve, characterized by, The control method of the vacuum storage device comprises: determining a drawer switch state based on a door magnetic signal, the drawer switch state comprising an open state and a closed state; when the drawer switch state is in the open state, if a drawer closing instruction is received, controlling the drawer driving motor to perform a drawer closing action; when the drawer switch state changes from the open state to the closed state, stopping the drawer closing action and controlling the vacuum pump to work; obtaining an internal chamber air pressure value, and when the internal chamber air pressure value is consistent with a preset air pressure threshold, controlling the vacuum pump to stop working; if a drawer opening instruction is received, controlling the pressure relief valve to open, adjusting the drawer switch state to the open state, and controlling the drawer driving motor to perform a drawer opening action.

2. The control method of a vacuum storage device according to claim 1, characterized in that, The step of stopping the drawer closing action and controlling the vacuum pump to work when the drawer switch state changes from the open state to the closed state comprises: after the drawer driving motor stops performing the drawer closing action, controlling the plasma generator to start, and releasing plasma; controlling the plasma generator to stop working according to a preset sterilization time length, and generating a sterilization completion signal; based on the sterilization completion signal, controlling the vacuum pump to start and perform a vacuumizing action.

3. The control method of a vacuum storage device according to claim 1, wherein After the step of obtaining the internal chamber air pressure value and controlling the vacuum pump to stop working when the internal chamber air pressure value is consistent with the preset air pressure threshold, the method further comprises: determining an air pressure maintenance threshold according to the preset air pressure threshold; monitoring the internal chamber air pressure value, and when the internal chamber air pressure value is higher than the air pressure maintenance threshold, starting the vacuum pump to perform a supplementary vacuumizing operation until the internal chamber air pressure value returns to the preset air pressure threshold.

4. The control method of a vacuum storage device according to claim 3, characterized in that, After the step of obtaining the internal chamber air pressure value and controlling the vacuum pump to stop working when the internal chamber air pressure value is consistent with the preset air pressure threshold, the method further comprises: monitoring the internal chamber air pressure value, and when the internal chamber air pressure value is lower than a pressure bearing threshold, controlling the pressure relief valve to open until the internal chamber air pressure value returns to the preset air pressure threshold; wherein the air pressure maintenance threshold is higher than the preset air pressure threshold, the preset air pressure threshold is higher than or equal to the pressure bearing threshold, and the pressure bearing threshold is equal to -25 kiloPascal.

5. The control method of a vacuum storage device according to claim 1, wherein The step of controlling the pressure relief valve to open, adjusting the drawer switch state to the open state, and controlling the drawer driving motor to perform the drawer opening action if the drawer opening instruction is received comprises: opening the pressure relief valve according to the drawer opening instruction, and monitoring the internal chamber air pressure value; when the internal chamber air pressure value is equal to a safe air pressure value, controlling the drawer driving motor to perform the drawer opening action and adjusting the drawer switch state to the open state.

6. The control method of a vacuum storage device according to claim 1, wherein The step of obtaining the internal chamber air pressure value and controlling the vacuum pump to stop working when the internal chamber air pressure value is consistent with the preset air pressure threshold further comprises: generating an air pressure change curve based on the internal chamber air pressure value; monitoring an abnormal signal of a vacuumizing process according to the air pressure change curve; if a slope change of the air pressure change curve tends to be gentle and the internal chamber air pressure value is greater than the preset air pressure threshold, generating a sealing abnormal signal; Output a sealing abnormality prompt based on the sealing abnormality signal.

7. The control method of a vacuum storage device according to claim 1, wherein If the drawer opening instruction is received, the pressure relief valve is controlled to open, the state of the drawer switch is adjusted to an open state, and the drawer drive motor is controlled to perform a drawer opening action. If the drawer closing instruction is not received within the preset opening duration, an opening timeout prompt is output, and the drawer drive motor is controlled to perform a drawer closing action.

8. A control apparatus for a vacuum storage device, characterized by comprising: The control device of the vacuum storage device comprises a memory, a processor, and a computer program stored on the memory and executable on the processor, and the computer program is configured to implement the steps of the control method of the vacuum storage device according to any one of claims 1 to 7.

9. A computer-readable storage medium, characterized in that, The computer program is stored on the computer readable storage medium and is executable by the processor to implement the steps of the control method of the vacuum storage device according to any one of claims 1 to 7.

10. A computer program product, characterised in that, The computer program product comprises the computer program, and the computer program is executable by the processor to implement the steps of the control method of the vacuum storage device according to any one of claims 1 to 7.

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