Dish warming control method and system for disinfection cabinet

Abstract

The invention relates to the technical field of kitchen appliances, in particular to a disinfection cabinet dish warming control method and system, and the method comprises the steps: obtaining and analyzing a first sound detection signal in real time in a disinfection cabinet dish warming closed state; when the first sound detection signal indicates that the extractor hood is started to run, starting timing of first preset time; after timing of the first preset time is finished, when the first sound detection signal indicates that the extractor hood is still in the running state, a first action detection signal is obtained and analyzed; when the first action detection signal indicates that the target detection object exists in the surrounding environment to execute the target action, the disinfection cabinet warm dish is controlled to be started; and when the first action detection signal indicates that the target detection object does not execute the target action in the surrounding environment, the closed state of the disinfection cabinet warm dish is kept, so that the opening and closing of the disinfection cabinet warm dish can be accurately and dynamically adjusted in multiple scenes, the user experience is improved, and the energy consumption of the disinfection cabinet is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and particularly to a method and system for controlling the dish warming function of a disinfection cabinet. Background Art

[0002] With the improvement of living quality, disinfection cabinets are becoming more and more common in daily household kitchens. In addition to the disinfection function, an important function of the disinfection cabinet is to warm dishes, that is, to heat tableware using the disinfection cabinet so that the bowls and dishes obtained by users during meals are warm, enabling the cooked dishes to keep warm for a longer time.

[0003] Currently, the control scheme for the dish warming function of disinfection cabinets is not intelligent enough. For example, a human body sensor is used to detect when a person is beside the disinfection cabinet, and the dish warming function is turned on after a certain period of time. A temperature sensor is used to detect the change in the person's body temperature, and the dish warming function is turned off when it is stable. However, users do not always stay beside the disinfection cabinet, and the user's back-and-forth movement will cause the dish warming function to be frequently turned on or off, increasing the energy consumption of the disinfection cabinet. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a method and system for controlling the dish warming function of a disinfection cabinet, and the solutions are as follows:

[0005] In a first aspect, the present invention provides a method for controlling the dish warming function of a disinfection cabinet, including:

[0006] In the state where the dish warming function of the disinfection cabinet is turned off, a first sound detection signal is obtained and parsed in real time; the first sound detection signal is generated by a sound detection unit detecting the sound of an oil fume extractor.

[0007] When the first sound detection signal indicates that the oil fume extractor starts to operate, timing of a first preset time is started.

[0008] After the timing of the first preset time ends and the first sound detection signal indicates that the oil fume extractor is still in the operating state, a first motion detection signal is obtained and parsed; the first motion detection signal is generated by a motion detection unit detecting the motion of the surrounding environment within a preset range.

[0009] When the first motion detection signal indicates that there is a target detection object performing a target action in the surrounding environment, the dish warming function of the disinfection cabinet is controlled to be turned on.

[0010] When the first motion detection signal indicates that there is no target detection object performing a target action in the surrounding environment, the closed state of the dish warming function of the disinfection cabinet is maintained.

[0011] Further, the method further includes:

[0012] In the state where the dish warming function of the disinfection cabinet is turned on, a second sound detection signal and a second motion detection signal are obtained in real time.

[0013] Determine the control state of the dish warming function of the disinfection cabinet based on the second sound detection signal and the second motion detection signal.

[0014] Further, determining the control state of the dish warming function of the disinfection cabinet based on the second sound detection signal and the second motion detection signal includes:

[0015] When the second sound detection signal indicates that the range hood has stopped operating, start timing for a second preset time;

[0016] After the timing of the second preset time ends, when the second sound detection signal still indicates that the range hood is in a stopped state, control the dish warming function of the disinfection cabinet to close, and control the motion detection unit to stop motion detection.

[0017] Further, it also includes:

[0018] After the timing of the second preset time ends, when the second sound detection signal indicates that the range hood has restarted and is operating, keep the dish warming function of the disinfection cabinet in an open state.

[0019] Further, determining the control state of the dish warming function of the disinfection cabinet based on the second sound detection signal and the second motion detection signal also includes:

[0020] When the second motion detection signal indicates that there is no target detection object performing a target action in the surrounding environment, start timing for a third preset time;

[0021] After the timing of the third preset time ends, when the second sound detection signal indicates that the range hood has stopped operating and the second motion detection signal indicates that there is a target detection object performing a target action in the surrounding environment, control the dish warming function of the disinfection cabinet to close.

[0022] Further, it also includes:

[0023] After the timing of the third preset time ends, when the second sound detection signal indicates that the range hood has started operating and the second motion detection signal still indicates that there is no target detection object performing a target action in the surrounding environment, keep the dish warming function of the disinfection cabinet in an open state.

[0024] Further, after obtaining the first motion detection signal or the second motion detection signal, it also includes:

[0025] Determine the current action performed by the target detection object based on the first motion detection signal or the second motion detection signal;

[0026] Input the current action into a preset model, and obtain a comparison result between the current action and multiple reference actions based on the preset model;

[0027] When the comparison result indicates that the current action is consistent with at least one reference action, determine the current action as the target action.

[0028] Further, the method further includes:

[0029] During the timing of the first preset time, a door lock detection signal is obtained in real time; the door lock detection signal is generated by a door lock detection unit detecting the change in the state of the disinfection cabinet door lock.

[0030] When the door lock detection signal indicates that the disinfection cabinet door lock is opened, determine the opening time of the disinfection cabinet door lock.

[0031] Reset the first preset time based on the opening time.

[0032] On the other hand, the present invention provides a warm dish control system for a disinfection cabinet, including a control unit, a sound detection unit, and an action detection unit:

[0033] The control unit is electrically connected to the sound detection unit and the action detection unit respectively.

[0034] The sound detection unit is arranged inside the range hood; the sound detection unit performs sound detection on the range hood to generate a first sound detection signal.

[0035] The action detection unit is arranged above the cooking range; the action detection unit performs action detection on the surrounding environment within a preset range to generate a first action detection signal.

[0036] The control unit is configured to, when the warm dish function of the disinfection cabinet is in the closed state, obtain and analyze the first sound detection signal in real time; when the first sound detection signal indicates that the range hood starts to operate, start the timing of the first preset time; after the timing of the first preset time ends and the first sound detection signal indicates that the range hood is still in the operating state, obtain and analyze the first action detection signal; when the first action detection signal indicates that there is a target detection object performing a target action in the surrounding environment, control the warm dish function of the disinfection cabinet to be turned on.

[0037] Further, the system further includes a door lock detection unit;

[0038] The door lock detection unit is used to detect the change in the state of the disinfection cabinet door lock and generate a door lock detection signal; so that the control unit can obtain the door lock detection signal in real time during the timing of the first preset time; when the door lock detection signal indicates that the disinfection cabinet door lock is opened, determine the opening time of the disinfection cabinet door lock; and reset the first preset time based on the opening time.

[0039] Adopting the above technical solutions, the present invention has the following beneficial effects:

[0040] The present invention is provided with a sound detection unit to detect the operating sound of the range hood, and an action detection unit to detect the actions of the user at the cooking range. Based on these two factors, it is determined whether the user needs to turn on the dish warming function of the disinfection cabinet, which can achieve accurate and dynamic adjustment of the opening and closing of the dish warming function of the disinfection cabinet in multiple scenarios, improve the user experience, and reduce the energy consumption of the disinfection cabinet.

[0041] Other features and advantages of the present invention will be described in detail in the following specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and the same reference numerals generally represent the same components. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0043] Figure 1 A schematic diagram of the overall components of a dish warming control system for a disinfection cabinet provided by an embodiment of the present invention;

[0044] Figure 2 A flowchart of a dish warming control method provided by an embodiment of the present invention;

[0045] Figure 3 A flowchart of an optional dish warming control method provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0047] As used herein, "one embodiment" or "an embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Moreover, terms such as "first" and "second" are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0048] In addition to disinfection, the disinfection cabinet also has a very important function, which is to warm the dishes, that is, to use the disinfection cabinet to heat the tableware so that the bowls and dishes the user gets when dining are warm, allowing the cooked dishes to keep warm for a longer time.

[0049] Currently, the control scheme for the function of warming dishes in the disinfection cabinet is as follows: use a human body sensor to detect when a person is next to the disinfection cabinet, and start warming the dishes after a certain time. Use a temperature sensor to detect the change in the person's body temperature, and turn off the warming of the dishes when it is stable. However, in actual applications, there will be various situations. For example, when the user is cooking, they may not always be in the kitchen. For example, in the scenarios of stewing soup and stewing vegetables, this will cause the human body sensor to not detect the person, thus turning off the warming of the dishes; when the user is cooking, they may not always be next to the disinfection cabinet. For example, when the user is preparing ingredients and cutting vegetables next to it, the warming of the dishes will be turned off; the cooking stove will not always be on when cooking. After frying one dish, it will be turned off to wash the pot; in these situations, when the user walks back and forth, it will cause the warming function of the dishes to be frequently turned on or off, increasing the energy consumption of the disinfection cabinet.

[0050] To solve the above problems, the present invention provides a method and system for controlling the warming of dishes in a disinfection cabinet. Refer to Figure 1 As shown, the control system includes a control unit, a sound detection unit, a motion detection unit, and a door lock detection unit. The control unit is the control unit in the disinfection cabinet, such as the main control MCU, which includes hardware and software and can generate and transmit instructions and information by sending and receiving electrical signals. The sound detection unit, the motion detection unit, and the door lock detection unit are all electrically connected to the control unit.

[0051] The sound detection unit is disposed inside the range hood and is used to detect whether the range hood is turned on or off through the operating sound of the range hood. When the sound during the operation of the range hood exceeds a certain decibel level, the sound detection unit can detect it and determine that the range hood is turned on. When the sound during the operation of the range hood is lower than a certain decibel level, the sound detection unit cannot detect it and determines that the range hood is turned off. In the embodiments of the present invention, the sound detection unit can be a sound sensor, such as a sound wave sensor, a microphone, etc. The sound detection unit generates a sound detection signal based on the result of sound detection and sends it to the control unit, and the control unit obtains the sound detection signal.

[0052] The motion detection unit is disposed above the cooking stove and is used to detect the actions of the user near the cooking stove. Actions such as chopping vegetables, stir-frying, stewing, steaming, and roasting in the cooking process are regarded as target actions for subsequent control of the warming tray of the disinfection cabinet. The specific position of the motion detection unit can be set according to the general height of the user to ensure that the actions of the user can be detected. When the motion detection unit detects that there is user activity near the cooking stove, it captures the action sequence of the user and inputs the action sequence into a preset model to determine whether the action sequence is a target action or other daily actions.

[0053] The preset model is a model pre-trained with a large amount of sample data and can accurately distinguish target actions from other daily actions. In the embodiments of the present invention, the motion detection unit is an image / video capture device, such as a camera, a camera, etc. The camera can capture a video composed of multiple frames of images, and the camera can capture a sequence of multiple images. The motion detection unit generates a motion detection signal based on the result of motion detection and sends it to the control unit, and the control unit obtains the motion detection signal.

[0054] A door lock detection unit is provided on the disinfection cabinet to detect changes in the door lock state of the disinfection cabinet and generate a door lock detection signal. The control unit also obtains and analyzes the door lock detection signal in real time. When the door lock detection signal indicates that the door lock of the disinfection cabinet is opened, the opening time of the door lock is determined.

[0055] The control unit controls the opening or closing of the warming tray of the disinfection cabinet based on the sound detection signal, the motion detection signal, and the door lock detection signal. Next, the embodiments of the present invention will be described in detail on how to implement the control method of the warming tray of the disinfection cabinet.

[0056] Reference Figure 2, which shows a schematic flowchart of a method for controlling the warming function of a disinfection cabinet provided by an embodiment of the present invention. It should be noted that this specification provides the method operation steps as described in the embodiment or flowchart, but based on routine or non-creative labor, there may be more or fewer operation steps. The step order listed in the embodiment is only one way among many step execution orders and does not represent the only execution order. When the actual system device or product is executed, it can be executed in the order of the method shown in the embodiment or the drawings, or executed in parallel (for example, in an environment with parallel processors or multi-threaded processing). The method for controlling the warming function of a disinfection cabinet provided by an embodiment of the present invention includes:

[0057] S201. In the state where the warming function of the disinfection cabinet is turned off, obtain and analyze the first sound detection signal in real time; the first sound detection signal is generated by the sound detection unit detecting the sound of the range hood.

[0058] Specifically, first, in the state where the warming function of the disinfection cabinet is turned off, the control unit obtains and analyzes the first sound detection signal in real time. As described above, the first sound detection signal is generated by the sound detection unit detecting the sound of the range hood. When the range hood starts to operate and the sound exceeds a certain decibel, the sound detection unit will detect the sound and generate the first sound detection signal, which indicates that the range hood has started to operate; if the range hood has not started to operate, the sound detection unit cannot detect the sound and generates the first sound detection signal, which indicates that the range hood has not started to operate and is in the off state. The sound detection unit generates the first sound detection signal in real time, and the control unit obtains the first sound detection signal in real time.

[0059] S202. When the first sound detection signal indicates that the range hood has started to operate, start timing for a first preset time.

[0060] Specifically, when the first sound detection signal indicates that the range hood has started to operate, it indicates that the user may start cooking in the kitchen. Of course, there are other situations, such as the user turning on the range hood for ventilation or accidentally touching the switch to turn on the range hood. At this time, the control unit starts timing for a first preset time to determine whether the user is using the range hood for cooking or other interfering factors within the first preset time period. The time of the first preset time can be customized based on the user's own living habits. For example, if ventilation may take 5 minutes, then the duration of the first preset time is set to be greater than 5 minutes, such as 7 minutes, 10 minutes, etc.

[0061] S203. After the timing of the first preset time ends and the first sound detection signal indicates that the range hood is still in the operating state, obtain and analyze the first motion detection signal; the first motion detection signal is generated by the motion detection unit detecting the motion of the surrounding environment within a preset range.

[0062] Specifically, during the timing of the first preset time, if the user turns on the fresh air ventilation of the range hood or accidentally touches and turns on the range hood, then these interfering actions will end after the timing of the first preset time ends, and the range hood is in the off state, indicating that the user is not cooking; if the range hood is still in the running state after the timing of the first preset time ends, indicating that the user may be cooking, then the user's actions can be further detected at this time.

[0063] Therefore, after the timing of the first preset time ends, when the first sound detection signal indicates that the range hood is still in the running state, the first action detection signal is acquired and analyzed. As can be seen from the foregoing, the first action detection signal is generated by the action detection unit detecting the actions in the surrounding environment within the preset range. In the embodiment of the present invention, the surrounding environment within the preset range is the activity range of the user near the cooking stove, so that the action detection unit can accurately capture the user's actions.

[0064] S204. When the first action detection signal indicates that there is a target detection object performing a target action in the surrounding environment, control the warm plate of the disinfection cabinet to turn on.

[0065] Specifically, in the embodiment of the present invention, the target detection object is the user, and the target actions are actions in the cooking process such as cutting vegetables, stir-frying, stewing, steaming, and roasting. The user is in the kitchen, but may not be cooking. In this case, the warm plate function is not required, so it is necessary to distinguish between the cooking situation and this situation. The control unit analyzes the first action detection signal. When the first action detection signal indicates that the user is performing actions in the cooking process such as cutting vegetables, stir-frying, stewing, steaming, and roasting near the cooking stove, the control unit controls the warm plate of the disinfection cabinet to turn on. Further, the heating unit of the warm plate of the disinfection cabinet can be controlled to turn on.

[0066] S205. When the first action detection signal indicates that there is no target detection object performing a target action in the surrounding environment, keep the warm plate of the disinfection cabinet in the off state.

[0067] Specifically, the control unit analyzes the first action detection signal. When the first action detection signal indicates that there is no user performing actions in the cooking process such as cutting vegetables, stir-frying, stewing, steaming, and roasting near the cooking stove, or there is a user near the cooking stove, but no actions such as cutting vegetables, stir-frying, stewing, steaming, and roasting are performed, such as daily actions like cleaning the cooking stove, the control unit keeps the warm plate of the disinfection cabinet in the off state.

[0068] Reference Figure 3 In a possible implementation manner, the method further includes:

[0069] When the warm plate of the disinfection cabinet is in the on state, the second sound detection signal and the second action detection signal are acquired in real time;

[0070] Based on the second sound detection signal and the second motion detection signal, determine the control state of the warming dish in the disinfection cabinet.

[0071] Specifically, after the warming dish in the disinfection cabinet is turned on, continuously and real-time obtain the second sound detection signal generated by the sound detection unit and the second motion detection signal generated by the motion detection unit. The two judgment processes are carried out simultaneously. Then, based on the second sound detection signal and the second motion detection signal, further determine whether the control state of the warming dish in the disinfection cabinet is to continue to be turned on or turned off.

[0072] In a possible implementation manner, determining the control state of the warming dish in the disinfection cabinet based on the second sound detection signal and the second motion detection signal includes:

[0073] When the second sound detection signal indicates that the range hood has stopped running, start timing for a second preset time;

[0074] After the timing of the second preset time ends, when the second sound detection signal indicates that the range hood is still in the stopped state, control the warming dish in the disinfection cabinet to turn off, and control the motion detection unit to stop motion detection.

[0075] Specifically, first analyze the second sound detection signal. When the second sound detection signal indicates that the range hood has stopped running, it indicates that the user may have stopped cooking and may need to turn off the warming dish function. However, it is also possible that the user is still in the cooking process and temporarily turns off the range hood, so further confirmation is needed. Therefore, start timing for the second preset time first. The time of the second preset time can be customized based on the user's own living habits, such as 5 minutes, 10 minutes, etc.

[0076] After the timing of the second preset time ends, continue to analyze the second sound detection signal. When the second sound detection signal indicates that the range hood is still in the stopped state, it is determined that the user has finished cooking and no longer uses the range hood. Then, the warming dish in the disinfection cabinet can be turned off, that is, the control unit controls the heating unit of the warming dish in the disinfection cabinet to turn off. At this time, there is no need to make a judgment based on the second motion detection signal anymore, so the motion detection unit is simultaneously controlled to stop motion detection.

[0077] In a possible implementation manner, the method further includes:

[0078] After the timing of the second preset time ends, when the second sound detection signal indicates that the range hood restarts and runs, keep the warming dish in the disinfection cabinet turned on.

[0079] After the timing of the second preset time ends, continue to analyze the second sound detection signal. When the second sound detection signal indicates that the range hood restarts and runs, it indicates that the user is still cooking, so the warming dish function needs to be kept turned on.

[0080] In a possible implementation manner, determining the control state of the warming plate of the disinfection cabinet based on the second sound detection signal and the second motion detection signal further includes:

[0081] When the second motion detection signal indicates that there is no target detection object performing a target action in the surrounding environment, start timing for a third preset time;

[0082] After the timing of the third preset time ends, when the second sound detection signal indicates that the range hood stops operating and the second motion detection signal indicates that there is a target detection object performing a target action in the surrounding environment, control the warming plate of the disinfection cabinet to close.

[0083] Specifically, for the second motion detection signal generated by the motion detection unit, the control unit analyzes the second motion detection signal. When it is determined that the second motion detection signal indicates that there is no target detection object performing a target action in the surrounding environment, it means that the user may have stopped cooking, but it is also possible that the user is stewing soup or stewing vegetables and has temporarily left the stove. Therefore, start timing for the third preset time first. The third preset time can be customized according to the user's own living habits. For example, stewing soup or stewing vegetables may take 20 minutes, so the duration of the third preset time is set to be greater than 20 minutes, such as 25 minutes, 30 minutes, etc.

[0084] After the timing of the third preset time ends, continue to analyze the second sound detection signal and the second motion detection signal. When the second sound detection signal indicates that the range hood stops operating and the second motion detection signal indicates that the user is performing an action in the cooking process at the stove, it means that the stewing or soup-making is completed, the range hood is turned off, and the user has returned to start serving the soup. Therefore, control the warming plate of the disinfection cabinet to close. And at the same time, control the sound detection unit to stop sound detection.

[0085] In a possible implementation manner, the method further includes:

[0086] After the timing of the third preset time ends, when the second sound detection signal indicates that the range hood starts to operate and the second motion detection signal indicates that there is still no target detection object performing a target action in the surrounding environment, keep the warming plate of the disinfection cabinet in the on state.

[0087] Specifically, after the timing of the third preset time ends, when the second sound detection signal indicates that the range hood starts to operate and the second motion detection signal indicates that there is no user performing an action in the cooking process at the stove, it means that the cooking process is still ongoing and may be stewing soup or stewing vegetables. Therefore, continue to keep the warming plate of the disinfection cabinet in the on state.

[0088] In a possible implementation manner, after obtaining the first motion detection signal or the second motion detection signal, it further includes:

[0089] Determine the current action performed by the target detection object based on the first action detection signal or the second action detection signal;

[0090] Input the current action into a preset model, and obtain the comparison result between the current action and multiple reference actions based on the preset model;

[0091] When the comparison result indicates that the current action is consistent with at least one reference action, determine that the current action is the target action.

[0092] Specifically, the action detection unit is an image / video capture device, such as a camera, a camera, etc. The camera can capture a video composed of multiple frames of images, and the camera can capture a sequence of multiple images. The first action detection signal or the second action detection signal contains the current action performed by the user. The control unit analyzes the first action detection signal or the second action detection signal to determine the current action performed by the target detection object. Input the current action into a preset model. The preset model can accurately distinguish the target action from other daily actions. For example, detection methods such as object detection, semantic segmentation, and Transformer can be used. The preset model is a model pre-trained with a large amount of sample data. Input the video or image sequence containing the current action into the preset model for image feature extraction. Compare the current action in the obtained target feature image with the reference action in the reference image. When the comparison result indicates that the current action is consistent with at least one reference action, determine that the current action is the target action. In this way, the actions in the user's cooking process can be accurately and quickly distinguished from other daily actions, so as to more accurately control the opening or closing of the warming tray of the disinfection cabinet.

[0093] In a possible implementation manner, the method further includes:

[0094] During the timing of the first preset time, obtain the door lock detection signal in real time; the door lock detection signal is generated by the door lock detection unit detecting the change in the state of the disinfection cabinet door lock;

[0095] When the door lock detection signal indicates that the disinfection cabinet door lock is opened, determine the opening time of the disinfection cabinet door lock;

[0096] Reset the first preset time based on the opening time.

[0097] Specifically, in the embodiments of the present invention, a door lock detection unit is provided on the disinfection cabinet to detect the change in the state of the disinfection cabinet door lock and generate a door lock detection signal. During the timing of the first preset time, the control unit also obtains and analyzes the door lock detection signal in real time. When the door lock detection signal indicates that the disinfection cabinet door lock is opened, the opening time of the door lock is determined, and the first preset time is reset based on the opening time. For example, the first preset time is shortened because the opening of the disinfection cabinet door lock indicates that the user is accustomed to using bowls and dishes during the cooking process. Therefore, the first preset time is shortened, and the dish warming starts earlier during the next use.

[0098] On the other hand, the present invention provides a dish warming control system for a disinfection cabinet, including a control unit, a sound detection unit, and a motion detection unit:

[0099] The control unit is electrically connected to the sound detection unit and the motion detection unit respectively;

[0100] The sound detection unit is arranged inside the range hood; the sound detection unit performs sound detection on the range hood to generate a first sound detection signal;

[0101] The motion detection unit is arranged above the cooking range; the motion detection unit performs motion detection on the surrounding environment within a preset range to generate a first motion detection signal;

[0102] The control unit is used to obtain and analyze the first sound detection signal in real time when the dish warming of the disinfection cabinet is in the closed state; when the first sound detection signal indicates that the range hood starts to operate, start the timing of the first preset time; after the timing of the first preset time ends and the first sound detection signal indicates that the range hood is still in the operating state, obtain and analyze the first motion detection signal; when the first motion detection signal indicates that there is a target detection object performing a target action in the surrounding environment, control the dish warming of the disinfection cabinet to be turned on.

[0103] Specifically, the control system includes a control unit, a sound detection unit, and a motion detection unit. The control unit is the control unit in the disinfection cabinet, such as the main control MCU, which includes hardware and software and can generate and transmit instructions and information by receiving and sending electrical signals. The sound detection unit, the motion detection unit, and the door lock detection unit are all electrically connected to the control unit.

[0104] The sound detection unit is arranged inside the range hood and is used to detect whether the range hood is turned on or off through the operating sound of the range hood. When the sound of the range hood during operation exceeds a certain decibel, the sound detection unit can detect it and determine that the range hood is turned on. When the sound of the range hood during operation is lower than a certain decibel, the sound detection unit cannot detect it and determines that the range hood is turned off. In the embodiments of the present invention, the sound detection unit can be a sound sensor, such as a sound wave sensor, a microphone, etc. The sound detection unit generates a sound detection signal based on the result of the sound detection and sends it to the control unit, and the control unit obtains the sound detection signal.

[0105] The motion detection unit is arranged above the cooking range and is used to detect the user's motions near the cooking range. Motions in cooking processes such as cutting vegetables, stir-frying, stewing, steaming and baking are taken as target motions for subsequent control of the dish warming function of the disinfection cabinet. The specific position of the motion detection unit can be set according to the general height of the user to ensure that the user's motions can be detected. When the motion detection unit detects user activities near the cooking range, it captures the user's motion sequence and inputs the motion sequence into a preset model to determine whether the motion sequence is a target motion or other daily motions.

[0106] The control unit controls the opening or closing of the dish warming function of the disinfection cabinet based on the sound detection signal and the motion detection signal. The method for controlling the dish warming function of the disinfection cabinet in the embodiments of the present invention has been specifically introduced in the above embodiments and will not be elaborated here.

[0107] Furthermore, the system further includes a door lock detection unit;

[0108] The door lock detection unit is used to detect changes in the door lock state of the disinfection cabinet and generate a door lock detection signal, so that the control unit can continuously obtain the door lock detection signal during the timing of the first preset time. When the door lock detection signal indicates that the door lock of the disinfection cabinet is opened, the opening time of the door lock of the disinfection cabinet is determined, and the first preset time is reset based on the opening time.

[0109] Specifically, a door lock detection unit is arranged on the disinfection cabinet to detect changes in the door lock state of the disinfection cabinet and generate a door lock detection signal. During the timing of the first preset time, the control unit will also continuously obtain and analyze the door lock detection signal. When the door lock detection signal indicates that the door lock of the disinfection cabinet is opened, the opening time of the door lock is determined, and the first preset time is reset based on the opening time. For example, the first preset time is shortened because the opening of the door lock of the disinfection cabinet indicates that the user is accustomed to using the dishes during the stir-frying process, so the first preset time is shortened and the dish warming starts earlier the next time.

[0110] Through the above embodiments, the present invention sets a sound detection unit to detect the operating sound of the range hood, and a motion detection unit to detect the user's motions near the cooking range, and determines whether the user needs to turn on the dish warming function of the disinfection cabinet based on these two factors, which can accurately and dynamically adjust the opening and closing of the dish warming function of the disinfection cabinet in multiple scenarios, improve the user experience, and reduce the energy consumption of the disinfection cabinet.

[0111] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for controlling a warming plate of a disinfection cabinet, characterized in that, including When the disinfection cabinet's warming plate is in the closed state, obtain and analyze the first sound detection signal in real time; the first sound detection signal is generated by the sound detection unit detecting the sound of the range hood; When the first sound detection signal indicates that the range hood starts to operate, start timing for a first preset time; After the timing of the first preset time ends and the first sound detection signal indicates that the range hood is still in the operating state, obtain and analyze the first motion detection signal; the first motion detection signal is generated by the motion detection unit detecting the motion of the surrounding environment within a preset range; When the first motion detection signal indicates that there is a target detection object performing a target action in the surrounding environment, control the disinfection cabinet's warming plate to open; When the first motion detection signal indicates that there is no target detection object performing a target action in the surrounding environment, keep the disinfection cabinet's warming plate in the closed state.

2. The method for controlling the warming of dishes in a disinfection cabinet according to claim 1, wherein, It also includes: When the disinfection cabinet's warming plate is in the open state, obtain the second sound detection signal and the second motion detection signal in real time; Based on the second sound detection signal and the second motion detection signal, determine the control state of the disinfection cabinet's warming plate.

3. The method for controlling the warming of dishes in a disinfection cabinet according to claim 2, wherein The determining the control state of the disinfection cabinet's warming plate based on the second sound detection signal and the second motion detection signal includes: When the second sound detection signal indicates that the range hood stops operating, start timing for a second preset time; After the timing of the second preset time ends and the second sound detection signal indicates that the range hood is still in the stopped state, control the disinfection cabinet's warming plate to close and control the motion detection unit to stop motion detection.

4. The method for controlling the warming of tableware in a disinfection cabinet according to claim 3, wherein It also includes: After the timing of the second preset time ends and the second sound detection signal indicates that the range hood restarts to operate, keep the disinfection cabinet's warming plate in the open state.

5. The method for controlling the warming of dishes in a disinfection cabinet according to claim 2, wherein, The determining the control state of the disinfection cabinet's warming plate based on the second sound detection signal and the second motion detection signal further includes: When the second motion detection signal indicates that there is no target detection object performing a target action in the surrounding environment, start timing for a third preset time; After the timing of the third preset time ends, when the second sound detection signal indicates that the range hood stops operating and the second motion detection signal indicates that there is a target detection object performing a target action in the surrounding environment, control the disinfection cabinet's warming plate to close.

6. The method for controlling the warming tray of a disinfection cabinet according to claim 5, characterized in that, It also includes: After the timing of the third preset time ends, when the second sound detection signal indicates that the range hood starts to operate and the second motion detection signal indicates that there is still no target detection object performing a target action in the surrounding environment, keep the disinfection cabinet's warming plate in the open state.

7. The method for controlling the warming of dishes in a disinfection cabinet according to claim 2, wherein, After obtaining the first motion detection signal or the second motion detection signal, it also includes: Based on the first motion detection signal or the second motion detection signal, determine the current action performed by the target detection object; Input the current action into a preset model, and based on the preset model, obtain the comparison result between the current action and multiple reference actions; When the comparison result indicates that the current action is consistent with at least one reference action, determine that the current action is the target action.

8. The method for controlling the warming of dishes in a disinfection cabinet according to claim 1, characterized in that, It further includes: During the timing of the first preset time, obtain the door lock detection signal in real time; The door lock detection signal is generated by the door lock detection unit detecting the change in the state of the disinfection cabinet door lock; When the door lock detection signal indicates that the disinfection cabinet door lock is opened, determine the opening time of the disinfection cabinet door lock; Reset the first preset time based on the opening time.

9. A warm dish control system for a disinfection cabinet, characterized in that, It includes a control unit, a sound detection unit, and an action detection unit: The control unit is electrically connected to the sound detection unit and the action detection unit respectively; The sound detection unit is arranged inside the range hood; the sound detection unit performs sound detection on the range hood to generate a first sound detection signal; The action detection unit is arranged above the stove; the action detection unit performs action detection on the surrounding environment within a preset range to generate a first action detection signal; The control unit is used to obtain and analyze the first sound detection signal in real time when the disinfection cabinet warm plate is in the closed state; when the first sound detection signal indicates that the range hood starts to operate, start the timing of the first preset time; after the timing of the first preset time ends and the first sound detection signal indicates that the range hood is still in the operating state, obtain and analyze the first action detection signal; when the first action detection signal indicates that there is a target detection object performing a target action in the surrounding environment, control the disinfection cabinet warm plate to open.

10. The warm plate control system of the disinfection cabinet according to claim 9, characterized in that, It further includes a door lock detection unit; The door lock detection unit is used to detect the change in the state of the disinfection cabinet door lock and generate a door lock detection signal; so that the control unit can obtain the door lock detection signal in real time during the timing of the first preset time; when the door lock detection signal indicates that the disinfection cabinet door lock is opened, determine the opening time of the disinfection cabinet door lock; reset the first preset time based on the opening time.

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