Washing machine door body control method, electronic equipment and washing machine

Abstract

The invention relates to a washing machine door body control method, electronic equipment and a washing machine, and the method is applied to the washing machine provided with a first induction device, a second induction device and an electric control door body opening and closing device. The method comprises the following steps: a monitoring step: monitoring a first feedback signal of a first sensing device and a second feedback signal of a second sensing device, the first sensing device and the second sensing device being used for detecting the lower limb action of a user in a combined manner; at least according to the signal feedback conditions of the first induction device and the second induction device and the current state of the washing machine, the action of the electric control door body opening and closing device is controlled so as to control the state of the washing machine door body. The washing machine door body can be automatically controlled to be opened and closed by combining the sensing device and the electric control door body opening and closing device, a user does not need to manually open the door body, two hands are liberated, and convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a washing machine door control method, electronic equipment and a washing machine. Background Art

[0002] At present, there are more and more combined clothes processing devices (such as a combination of washing machines and washing machines, washing machines and clothes dryers, or clothes dryers and clothes dryers) on the market. However, the doors of such appliances on the market are mostly opened and closed manually, which is inconvenient to use.

[0003] In modern life, washing machines, dryers and all-in-one washing and drying machines have gradually become indispensable appliances in people's lives, and the requirements for their functions are becoming more and more diverse. As the most common household appliance used in people's daily lives, with the continuous development and progress of technology, the research and development of washing machines has focused more and more on improving the user experience on the basis of meeting people's basic laundry requirements.

[0004] As the door of a drum washing machine is set on the front panel, users need to bend down or squat to manually open and close the door every time they put or take out clothes, which is even more inconvenient when users need to open the door while holding clothes. Moreover, this type of manually opened door can be opened by young children, which may cause children to enter the inner drum by mistake, increasing the risk of safety accidents. Summary of the invention

[0005] In order to overcome the problems existing in the related art, a first aspect of an embodiment of the present invention provides a method for controlling a door of a washing machine, wherein the method is applied to a washing machine provided with a first sensing device, a second sensing device and an electric-controlled door switch device, and the method comprises:

[0006] Monitoring step: monitoring a first feedback signal of the first sensing device and a second feedback signal of the second sensing device, wherein the first sensing device and the second sensing device are used to detect the user's lower limb movements in combination;

[0007] At least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine, the action of the electric-controlled door switch device is controlled to control the state of the door of the washing machine.

[0008] Optionally, the method further comprises:

[0009] The monitoring step is performed in response to a trigger signal, wherein the trigger signal comprises:

[0010] a feedback signal of a third sensing device, the third sensing device being arranged above the first sensing device and the second sensing device and being used for detecting an upper limb of a user, and / or

[0011] A washing machine state signal is generated according to the current state of the washing machine, indicating that the washing machine door is allowed to change state.

[0012] Optionally, performing the monitoring step in response to a trigger signal comprises:

[0013] The monitoring step is performed in response to a feedback signal sent by the third sensing device indicating detection of an upper limb of the user (in this case, to determine whether the door needs to be opened); and / or,

[0014] The monitoring step (in this case, to determine whether the door needs to be closed) is performed in response to a feedback signal sent by the third sensing device indicating that the user's upper limb has not been detected for a set period of time.

[0015] Optionally, the first sensing device and the second sensing device are arranged in a first preset area on the front of the washing machine and are spaced apart in a width direction of the front of the washing machine, wherein the first preset area is a front area below half the height of the washing machine, corresponding to the legs and / or feet of the user;

[0016] The third sensing device is arranged at a position above half of the height of the washing machine, corresponding to the upper limbs of the user.

[0017] Optionally, the current state of the washing machine includes an operating state of the washing machine and a door state of the washing machine door;

[0018] The signal feedback conditions of the first sensing device and the second sensing device include the time interval between the first feedback signal and the second feedback signal, and / or the non-feedback duration during which at least one of the first sensing device and the second sensing device continuously fails to feed back the corresponding feedback signal;

[0019] The method of controlling the action of the electric door switch device at least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine includes:

[0020] When the running state is standby, the door state is closed, and the time interval is less than the first time length, the electric door switch device is controlled to open the door of the washing machine, and / or

[0021] When the operation state is standby, the door state is open, and the duration of no feedback exceeds a second duration, controlling the electric door switch device to close the door of the washing machine, and / or,

[0022] When the operating state is in the door-openable state, the door state is closed, and the time interval is less than the first time length, controlling the electric door switch device to open the door of the washing machine; and / or,

[0023] When the operating state is a door-unopenable state, the door state is closed, and the time interval is less than the first time length, the electric-controlled door switch device is controlled to perform an action of keeping the door of the washing machine closed.

[0024] Optionally, the current state of the washing machine includes an environmental state of the washing machine and a door state of the washing machine door;

[0025] The signal feedback conditions of the first sensing device and the second sensing device include: the time interval between the first feedback signal and the second feedback signal;

[0026] The method of controlling the action of the electric door switch device to control the state of the door of the washing machine at least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine comprises:

[0027] When the door is in the closed state and the time interval is less than the first time length, if the environmental state satisfies the door opening condition, the electric door switch device is controlled to open the door of the washing machine, and / or

[0028] When the door state is closed and the time interval is less than the first time length, if the environmental state does not meet the door opening condition, the electric door switch device is controlled to perform the action of keeping the door of the washing machine closed.

[0029] Optionally, the environmental state includes: the temperature in the drum and the water level in the drum of the washing machine;

[0030] The environmental state does not meet the door opening condition, including: the temperature in the barrel exceeds a temperature threshold and / or the water level in the barrel exceeds a water level threshold.

[0031] Optionally, the method further comprises:

[0032] In the case where the environmental state does not satisfy the door opening condition, generating an environmental state change strategy and a corresponding strategy duration according to the environmental state and the operating state of the washing machine, wherein the environmental state change strategy is used to make the environmental state satisfy the door opening condition;

[0033] Outputting at least one of the strategy duration and the environment state change strategy to a user to obtain user confirmation;

[0034] After obtaining user confirmation, the environment state change strategy is executed.

[0035] Optionally, when the environmental state does not satisfy the door opening condition, generating an environmental state change strategy and a corresponding strategy duration according to the environmental state and the running state of the washing machine includes:

[0036] When the water level in the drum exceeds a water level threshold, a drainage strategy and a corresponding drainage time are generated according to the water level in the drum and the operating state of the washing machine, and / or,

[0037] When the temperature in the drum exceeds a temperature threshold, generating a cooling strategy and a corresponding cooling time according to the temperature in the drum and the operating state of the washing machine;

[0038] Among them, the operating state of the washing machine includes a non-stoppable stage and a stoppable stage. When the operating state of the washing machine is the non-stoppable stage, the environmental state change strategy includes the execution process of the non-stoppable stage, and the strategy duration includes the remaining duration of the non-stoppable stage and one of the drainage duration and the cooling duration. When the operating state of the washing machine is the stoppable stage, the environmental state change strategy includes a first strategy for continuing to execute the stoppable stage and a second strategy for terminating the stoppable stage.

[0039] Optionally, the current state of the washing machine includes the water level in the drum of the washing machine under a washing program, and the step of controlling the action of the electric door switch device to control the state of the door of the washing machine at least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine includes:

[0040] When it is determined that the user has a need to open the door according to the signal feedback of the first sensing device and the second sensing device, the water level in the cylinder is compared with the water level threshold to obtain a first comparison result;

[0041] The electrically controlled door switch device is controlled using a rule that matches the first comparison result.

[0042] Optionally, the step of controlling the electric-controlled door switch device by using a rule matching the first comparison result includes:

[0043] When the water level in the drum is lower than the water level threshold, the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine;

[0044] When the water level in the drum is higher than or equal to the water level threshold, the drainage program is started to drain the washing tub until the water level in the drum is lower than the water level threshold, and the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine.

[0045] Optionally, the current state of the washing machine includes the temperature in the drum of the washing machine in a drying program, and the step of controlling the action of the electric door switch device to control the state of the door of the washing machine at least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine includes:

[0046] When it is determined that the user has a need to open the door according to the signal feedback of the first sensing device and the second sensing device, the temperature in the barrel is compared with the temperature threshold to obtain a second comparison result;

[0047] The electric-controlled door switch device is controlled using a rule that matches the second comparison result.

[0048] Optionally, the step of controlling the electric-controlled door switch device by using a rule matching the second comparison result includes:

[0049] When the temperature in the drum is lower than the temperature threshold, powering on the electric-controlled door switch device to trigger the electric-controlled door switch device to open the door of the washing machine;

[0050] When the temperature in the drum is equal to or higher than the preset temperature, a preset operation is performed to cool the washing tub until the temperature in the drum is lower than the temperature threshold, and the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine.

[0051] Optionally, the step of executing a preset operation to cool the washing tub includes:

[0052] Turn off the turned-on washing tub heating module, and detect the return air starting temperature to obtain a first temperature;

[0053] Opening the air duct spray valve to cool down the temperature in the washing tub;

[0054] Detect the return air temperature drop threshold per unit time;

[0055] The time taken for cooling down is determined according to the first temperature, the temperature threshold and the return air temperature drop threshold per unit time, and the time taken for cooling down is output to the user.

[0056] Optionally, the electrically controlled door body switch device is a push rod motor;

[0057] The push rod motor is arranged on the area where the edge of the washing machine tub and the door body overlap.

[0058] Optionally, the electric-controlled door switch device comprises: an electromagnetic coil, a first permanent magnet and a second permanent magnet;

[0059] The electromagnetic coil is arranged on a hinge connecting the edge of the washing tub of the washing machine and the door body;

[0060] The first permanent magnet and the second permanent magnet are respectively arranged on both sides of the electromagnetic coil;

[0061] The electromagnetic coil is powered on to repel the first permanent magnet, the door is opened, and the distance between the second permanent magnet and the electromagnetic coil is reduced;

[0062] The electromagnetic coil is powered on again to repel the second permanent magnet, the door body is closed, and the distance between the first permanent magnet and the electromagnetic coil is reduced.

[0063] Optionally, after the step of powering on the electric-controlled door switch device to trigger the electric-controlled door switch device to open the door of the washing machine, the method further includes:

[0064] monitoring a third feedback signal of the first sensing device and a fourth feedback signal of the second sensing device in a second mode, wherein the washing machine door can be closed according to a second body movement of the user in the second mode;

[0065] Determining a second interval duration between the received third feedback signal and the received fourth feedback signal;

[0066] When the second interval duration matches the second duration, the electromagnetic coil is powered on to close the door, wherein the second duration is the duration corresponding to the second limb movement preset by the user.

[0067] Optionally, the method further comprises:

[0068] Determining whether a warning condition is met according to the signal feedback of the first sensing device and the second sensing device, and the detection result of the third sensing device;

[0069] If the warning condition is met, output warning information;

[0070] Wherein, the meeting of the warning condition includes: the third sensing device does not detect the upper limbs, the first sensing device and the second sensing device detect the user's lower limb movements, and the warning information includes: information related to the child's operation;

[0071] When the first sensing device and the second sensing device are both located under the washing machine door, the warning conditions include: when the washing machine door is in the open state, the third sensing device does not detect the upper limbs, at least one of the first sensing device and the second sensing device continues to provide signal feedback and exceeds the set time, and the warning information includes: the door cannot be closed or is blocked by clothing.

[0072] A second aspect of an embodiment of the present invention provides an electronic device, comprising a memory for storing one or more computer instructions;

[0073] A processor is used to call and execute the computer instructions to implement the method provided by the first aspect.

[0074] A third aspect of an embodiment of the present invention proposes a washing machine, which is provided with a first sensing device, a second sensing device and an electrically controlled door switch device; the washing machine controls the door of the washing machine using the method described in any one of the above method embodiments, or the washing machine door control device described in the above device embodiment.

[0075] The technical solution of the present invention is applied to a washing machine provided with a first sensing device, a second sensing device and an electric door switch device, wherein the first sensing device and the second sensing device are used to detect the user's lower limb movements in combination, and the electric door switch device is used to control the state of the washing machine door. The washing machine adopts the method described in any one of the first aspects, or has the electronic device of the second aspect.

[0076] Optionally, the washing machine further comprises a feedback signal of a third sensing device;

[0077] Wherein, the third sensing device is arranged above the first sensing device and the second sensing device, and is used to detect the upper limbs of the user; and / or,

[0078] The first sensing device and the second sensing device are arranged in a first preset area on the front of the washing machine and are spaced apart along the width direction of the front of the washing machine, wherein the first preset area is a front area below half the height of the entire washing machine, corresponding to the legs and / or feet of the user, or,

[0079] The first sensing device and the second sensing device are both located below the door of the washing machine;

[0080] The electric door switch device is a push rod motor;

[0081] The push rod motor is arranged on the area where the edge of the washing machine tub and the door body overlap;

[0082] The electric-controlled door switch device comprises: an electromagnetic coil, a first permanent magnet and a second permanent magnet;

[0083] The electromagnetic coil is arranged on a hinge connecting the edge of the washing tub of the washing machine and the door body;

[0084] The first permanent magnet and the second permanent magnet are respectively arranged on both sides of the electromagnetic coil;

[0085] The electromagnetic coil is powered on to repel the first permanent magnet, the door is opened, and the distance between the second permanent magnet and the electromagnetic coil is reduced;

[0086] The electromagnetic coil is powered on again to repel the second permanent magnet, the door body is closed, and the distance between the first permanent magnet and the electromagnetic coil is reduced.

[0087] According to the technical solution of the present invention, the washing machine automatically controls the state of the washing machine door according to the feedback signal of the sensing device and the current state of the washing machine. The user only needs to perform physical movements to make the sensing device generate a feedback signal, and there is no need to manually open the washing machine door, thus freeing both hands and improving convenience.

[0088] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0089] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0090] Figure 1 is a flow chart of a method for controlling a washing machine door according to an exemplary embodiment.

[0091] Figure 2 is a flow chart of a method for controlling a door of a washing machine according to an exemplary embodiment;

[0092] Figure 3 is a schematic diagram of the sensor layout structure on a washing machine according to an exemplary embodiment;

[0093] Figure 4 is a schematic diagram of the position structure of the electromagnetic coil when the door body is closed according to an exemplary embodiment;

[0094] Figure 5 is a schematic diagram of the position structure of the electromagnetic coil when the door is opened according to an exemplary embodiment;

[0095] Figure 6 is a flow chart of a method for controlling a door of a washing machine according to an exemplary embodiment;

[0096] Figure 7 is a flow chart of a method for controlling a door of a washing machine according to an exemplary embodiment;

[0097] Figure 8 is a structural block diagram of a washing machine door control device according to an exemplary embodiment. DETAILED DESCRIPTION

[0098] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0099] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0100] According to an embodiment of the present application, a method for controlling a door of a washing machine is provided, referring to Figure 1 The method includes a monitoring step and a control step, which are described below respectively.

[0101] In this embodiment, the monitoring step includes: monitoring a first feedback signal of a first sensing device and a second feedback signal of a second sensing device. The first sensing device and the second sensing device are used to detect the user's lower limb movements in combination, such as sweeping legs, lightly tapping the box with the foot, etc.

[0102] Control step: controlling the action of the electric door switch device to control the state of the washing machine door at least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine.

[0103] The signal feedback situation includes: whether the first sensing device and the second sensing device feed back corresponding feedback signals, the order of signal feedback of the first feedback signal and the second feedback signal, the signal feedback time interval of the first feedback signal and the second feedback signal, the duration of signal feedback of the first feedback signal and / or the second feedback signal, etc. For example, whether the corresponding feedback signal is fed back can be used to determine whether there is a user, the order can be used to determine whether the user's body movement conforms to the preset direction of movement, and the interval duration is used to determine whether the user's body movement conforms to the preset action mode indicating the door body state to be controlled alone or in combination with the order.

[0104] By adopting the method provided in this embodiment, the door of the washing machine can be controlled by detecting the movements of the user's lower limbs, freeing the user's hands and making the user's operation more convenient.

[0105] Optionally, in an implementation of this embodiment, the method further includes a triggering step: triggering the execution of the monitoring step in response to a trigger signal.

[0106] For example, the trigger signal includes a feedback signal of a third sensing device, and the third sensing device is arranged above the first sensing device and the second sensing device, and is used to detect the upper limbs of the user. Exemplarily, the monitoring step is performed in response to the feedback signal sent by the third sensing device indicating that the upper limbs of the user are detected, and then the door needs to be opened according to the result of the monitoring step; or the monitoring step is performed in response to the feedback signal sent by the third sensing device indicating that the upper limbs of the user are not detected for a set period of time, and then the door needs to be closed according to the result of the monitoring step.

[0107] For another example, the trigger signal is a washing machine state signal generated according to the current state of the washing machine, indicating that the washing machine door is allowed to change state. Exemplarily, when the current state of the washing machine is a state such as a standby state that allows the user to directly open and close the door, and a state such as a weighing program running state where the door can be opened immediately after an interruption, a washing machine state signal indicating that the washing machine door is allowed to change state can be generated. In other words, in this embodiment, a washing machine state signal is provided to indicate whether the state of the washing machine door is allowed to be changed. In different running states (or running programs or running stages) of the washing machine, the washing machine state signal changes synchronously according to whether the state of the washing machine door is allowed to be changed. When the washing machine state signal indicates that the user is allowed to directly open and close the door, the execution of the monitoring step can be triggered.

[0108] The above-mentioned implementation method of the present application is adopted to facilitate triggering the monitoring step at a reasonable time, thereby avoiding the problem of energy waste and shortened hardware life caused by the continuous execution of the monitoring step.

[0109] Optionally, in an implementation of this embodiment, the first sensing device and the second sensing device are arranged in a first preset area on the front of the washing machine and are spaced apart along the width direction of the front of the washing machine, wherein the first preset area is a front area less than half the height of the entire washing machine, corresponding to the legs and / or feet of the user, so as to accurately detect the movements of the user's lower limbs.

[0110] Optionally, in an implementation of this embodiment, the third sensing device is arranged at a position more than half the height of the washing machine, corresponding to the upper limbs of the user, and is used to accurately detect the upper limbs of the user. The detection results may include: detecting the upper limbs of the user and not detecting the upper limbs of the user.

[0111] Optionally, in an implementation of this embodiment, the current state of the washing machine includes the operating state of the washing machine and the door state of the washing machine door. The operating state may include standby, weighing, washing, drying, care, etc. These operating states may also be classified into a state where the door can be opened (including the state where the door can be opened directly and the state where the door can be opened immediately after the current program is interrupted) and a state where the door cannot be opened. The door state of the washing machine may include the door being opened and the door being closed.

[0112] The signal feedback conditions of the first sensing device and the second sensing device include the time interval between the first feedback signal and the second feedback signal, and / or the non-feedback duration during which at least one of the first sensing device and the second sensing device fails to feed back the corresponding feedback signal.

[0113] In this implementation, the action of the electric-controlled door switch device can be controlled in the following manner:

[0114] Mode 1: When the operating state is standby, the door state is closed, and the time interval is less than a first time length, the electric-controlled door switch device is controlled to open the door of the washing machine.

[0115] Mode 2: When the operating state is standby, the door state is open, and the no-feedback time exceeds a second time, the electric-controlled door switch device is controlled to close the door of the washing machine.

[0116] Method three: When the operating state is in a door-opening state (for example, a weighing state), the door state is closed, and the time interval is less than the first time length, the electric door switch device is controlled to open the washing machine door.

[0117] Method 4: When the operating state is a state where the door cannot be opened (for example, the drying and dehumidification state in the drying state), the door state is closed, and the time interval is less than the first time length, the electric door switch device is controlled to perform the action of keeping the door of the washing machine closed.

[0118] Optionally, in one implementation of this embodiment, the current state of the washing machine includes the environmental state of the washing machine and the state of the door of the washing machine. The environmental state includes the temperature in the drum and the water level in the drum of the washing machine, and the door state includes whether the door is open or closed. In other implementations, the environmental state may also include ozone concentration, humidity, etc.

[0119] The signal feedback conditions of the first sensing device and the second sensing device include: the time interval between the first feedback signal and the second feedback signal.

[0120] In this implementation, the action of the electric-controlled door switch device can be controlled in the following manner:

[0121] When the door is in the closed state and the time interval is less than the first time length, if the environmental state satisfies the door opening condition, the electric door switch device is controlled to open the door of the washing machine, and / or

[0122] When the door state is closed and the time interval is less than the first time length, if the environmental state does not meet the door opening condition, the electric door switch device is controlled to perform the action of keeping the door of the washing machine closed.

[0123] Exemplarily, the environmental state does not meet the door opening condition, including: the temperature in the barrel exceeds the temperature threshold and / or the water level in the barrel exceeds the water level threshold. Otherwise, the environmental state meets the door opening condition. In other embodiments, the environmental state does not meet the door opening condition can also include that the ozone concentration in the barrel exceeds the ozone concentration threshold.

[0124] Further, when the environmental state does not meet the door opening condition, an environmental state change strategy and a corresponding strategy duration can be generated according to the environmental state and the running state of the washing machine, and the environmental state change strategy is used to make the environmental state meet the door opening condition; at least one of the strategy duration and the environmental state change strategy is output to the user to obtain user confirmation; and the environmental state change strategy is executed after obtaining user confirmation. If no user confirmation is obtained, the door state is not changed.

[0125] For example, when the water level in the drum exceeds a water level threshold, a drainage strategy and a corresponding drainage duration are generated according to the water level in the drum and the operating status of the washing machine, and / or, when the temperature in the drum exceeds a temperature threshold, a cooling strategy and a corresponding cooling duration are generated according to the temperature in the drum and the operating status of the washing machine.

[0126] Among them, the operating state of the washing machine includes a non-stoppable stage and a stoppable stage. When the operating state of the washing machine is the non-stoppable stage, the environmental state change strategy includes the execution process of the non-stoppable stage, and the strategy duration includes the remaining duration of the non-stoppable stage and one of the drainage duration and the cooling time.

[0127] For example, if the operating state of the washing machine is the drying and dehumidification stage, in order to ensure the drying effect as well as the safety and energy-saving effect of drying, the drying and dehumidification stage can be set as a non-stop stage. At this time, the environmental state change strategy may include: continuing to execute the drying and dehumidification stage, and after the drying and dehumidification stage, performing a cooling treatment (please refer to the relevant description below for details). The strategy duration includes: the remaining duration of the drying and dehumidification stage + the duration of the cooling treatment. Similarly, if a stage in the washing stage is considered to cause undesirable waste of resources after stopping, the stage can be set as a non-stop stage.

[0128] That is to say, in the implementation of the embodiment of the present application, different operating states (or operating stages) of the washing machine are correspondingly configured with configuration information indicating whether it can be interrupted / stopped. The configuration information can be set by the user according to the needs, or it can be embedded in the controller of the washing machine by the manufacturer and its modification authority is open to the user. In this way, during the operation of the washing machine, it is possible to obtain in real time whether the current operating state can be interrupted / stopped, which can then be used as reference information for the door state control in the embodiment of the present application.

[0129] For another example, when the running state of the washing machine is a stoppable stage, the environmental state change strategy includes a first strategy of continuing to execute the stoppable stage (until the current stage ends) and a second strategy of terminating the stoppable stage. In other words, two optional strategies can be provided for the user to confirm, and different strategies correspond to different durations.

[0130] Exemplarily, in this implementation, the running state of the washing machine includes: washing state, drying state. The drying state includes: drying heating stage (stoppable stage), drying dehumidification stage (non-stoppable stage), and drying determination stage (stoppable stage).

[0131] It should be noted that the drying and dehumidification stage is regarded as a sub-stage of the drying state because the implementation method of the embodiment of the present application provides a principle of division that a state can include a stoppable stage and a non-stoppable stage. In other implementation methods of the embodiment of the present application, the drying and dehumidification stage itself can also be regarded as the operating state of the washing machine. Similarly, in the washing state or other states, the stages contained therein can also be regarded as stoppable stages and non-stoppable stages, or regarded as the operating state of the washing machine as needed.

[0132] Optionally, in an implementation of this embodiment, the current state of the washing machine includes the water level in the drum of the washing machine in a washing program. The method further includes: when it is determined that the user has a door opening requirement based on the signal feedback of the first sensing device and the second sensing device, comparing the water level in the drum with a water level threshold to obtain a first comparison result; and controlling the electric door body switch device using a rule matching the first comparison result. Please refer to the following for the relevant description, which will not be repeated here.

[0133] Optionally, in an implementation of this embodiment, the current state of the washing machine includes the temperature in the drum of the washing machine in the drying program, and the operation of the electric door switch device is controlled to control the state of the door of the washing machine at least according to the signal feedback of the first and second sensing devices and the current state of the washing machine, including: when it is determined that the user has a need to open the door according to the signal feedback of the first and second sensing devices, comparing the temperature in the drum with the temperature threshold to obtain a second comparison result; and controlling the electric door switch device using a rule that matches the second comparison result. Please refer to the following for the relevant description of this, which will not be repeated here.

[0134] Optionally, in an implementation of this embodiment, the washing machine includes the first sensing device, the second sensing device and the third sensing device mentioned above. The method further includes: determining whether a warning condition is met according to the signal feedback of the first sensing device and the second sensing device, and the detection result of the third sensing device; if the warning condition is met, outputting a warning message.

[0135] Among them, the warning conditions include: the third sensing device did not detect the upper limbs, the first sensing device and the second sensing device detected the user's lower limb movements, and the warning information included: information related to the child's operation, for example, outputting a prompt message to the user (the child's parent) that the child may be operating the washing machine, or outputting a warning message to the child (for example, outputting graphical reminder information through sound, display screen, etc.).

[0136] Among them, when the first sensing device and the second sensing device are both located under the washing machine door, the alarm condition includes: when the washing machine door is in the open state, the third sensing device does not detect the upper limb, at least one of the first sensing device and the second sensing device continues to provide signal feedback and exceeds the set time, and the alarm information includes: the door cannot be closed or clothes are blocked. In this way, the signal feedback of the first sensing device and the second sensing device can be used to determine whether clothes are left in the drum of the washing machine, and then remind the user of information such as clothes blocking the door and leaving clothes.

[0137] According to an embodiment of the present application, a method for controlling a door of a washing machine is provided, referring to Figure 2 , methods include:

[0138] 100: Monitor a first feedback signal of a first sensing device and a second feedback signal of a second sensing device in a first mode.

[0139] The washing machine can open the door of the washing machine according to the first body movement of the user in the first mode. The first body movement can be any appropriate movement, such as sweeping the legs, lightly tapping the box with the foot, etc., and the hand movement can be waving, tapping, touching, etc.

[0140] The washing machine door control method provided in the embodiment of the present application is applied to a washing machine provided with a first sensing device, a second sensing device and an electric door switch device. The user can trigger the washing machine to enter a first mode through body language or voice control, and the washing machine can open the washing machine door according to the user's first body movement in the first mode.

[0141] The first sensing device and the second sensing device are arranged in a preset area on the front of the washing machine; wherein the preset area is the front area below half the height of the entire washing machine; the selection of the position of this sensing device makes it convenient for the user to control the opening or closing of the washing machine door with the lower body when holding clothes in his hands.

[0142] Optionally, in an implementation of this embodiment, in addition to the two sensing devices that can monitor the user's physical actions to trigger the opening of the washing machine door, a third sensing device can be provided on the washing machine to prevent other objects such as infants or pets from erroneously triggering the opening of the washing machine door. The third sensing device can be provided at the front end of the washing machine.

[0143] Before monitoring the first feedback signal of the first sensing device and the second feedback signal of the second sensing device, the third feedback signal of the third sensing device is monitored; when the third feedback signal is monitored, the first mode is entered.

[0144] It should be noted that the three sensing devices can be set as optical sensors such as infrared sensors, which can monitor the object through electrical signal feedback; the first sensing device and the second sensing device can also be set as optical sensors, and the third sensing device can be set as a visual sensor, which can monitor the object through graphic recognition feedback.

[0145] Exemplarily, the electric-controlled door switch device may be a push rod motor or a device composed of an electromagnetic coil and a permanent magnet.

[0146] An exemplary schematic diagram of the layout structure of the sensor, i.e., the sensing device, on a washing machine is shown in FIG. Figure 3As shown. The outer surface of the washing machine is provided with three infrared sensors, which are arranged at a position less than half the height of the whole washing machine and the sensing area is facing the direction of the drum mouth of the clothing processing device. An accessory sensor such as an infrared sensor is arranged at the front end of the washing machine. Through the coordinated judgment between multiple sensors, a double insurance anti-misopening mechanism is formed. During the use of the user, there are certain situations that cause the machine door to be opened by mistake. The double insurance anti-misopening mechanism prevents the door from being opened by mistake when relatively short living beings such as infants, pets, and sweeping robots pass through the clothing processing device, thereby enhancing the safety level and improving the user experience.

[0147] In a preferred embodiment, the first sensing device, i.e., the infrared sensor 1, and the second sensing device, i.e., the infrared sensor 2, are arranged at the bottom of the washing machine, and the two infrared sensors are arranged horizontally. When the user uses a sweeping leg motion to open the door, the two infrared sensors are required to simultaneously receive feedback signals within a first preset time length.

[0148] It should be noted that the bottom of the washing machine is not limited to two sensors arranged side by side, but three sensors may be arranged or four sensors may be arranged in two rows to ensure that the user's action of triggering the opening or closing of the washing machine door is fully monitored.

[0149] In a preferred embodiment, Figure 3 As shown, the electric control door switch device is a push rod motor; the push rod motor is arranged on the area where the edge of the washing tub of the washing machine overlaps with the door body. When the push rod motor is powered on, it pushes the door body of the washing machine to open.

[0150] In a preferred embodiment, in combination Figure 4 Schematic diagram of the electromagnetic coil position structure when the door is closed. Figure 5 As shown in the schematic diagram of the structure of the electromagnetic coil position when the door body is opened, the electric-controlled door body switch device includes: an electromagnetic coil, a first permanent magnet, namely permanent magnet 1, and a second permanent magnet, namely permanent magnet 2; the electromagnetic coil is arranged on a hinge connected to the door body at the edge of the washing tub of the washing machine; the first permanent magnet and the second permanent magnet are respectively arranged on both sides of the electromagnetic coil; when the electromagnetic coil is powered on, it repels the first permanent magnet, the door body is opened, and the distance between the second permanent magnet and the electromagnetic coil is reduced; when the electromagnetic coil is powered on again, it repels the second permanent magnet, the door body is closed, and the distance between the first permanent magnet and the electromagnetic coil is reduced.

[0151] The automatic door closing structure provided in this optional embodiment has low structural complexity and low cost.

[0152] 102: Determine a first interval duration between a received first feedback signal and a received second feedback signal.

[0153] The first feedback signal and the second feedback signal are both electrical signals. The washing machine is provided with a control system, which receives the first feedback signal and the second feedback signal in sequence, and calculates the reception time interval between the two feedback signals, namely, the first interval time.

[0154] 104: When the first interval duration matches the first duration, determine the current state of the washing machine.

[0155] The first duration is the duration corresponding to the first limb action preset by the user. The first duration can be flexibly set by those skilled in the art according to the setting of the first limb action, and is not specifically limited in the embodiments of the present application.

[0156] 106: When the current state is the standby state, power on the electric-controlled door switch device to trigger the electric-controlled door switch device to open the door of the washing machine.

[0157] To ensure safety when the washing machine door is opened, in the embodiment of the present application, after receiving an instruction from the user to trigger the opening of the washing machine door, the current state of the washing machine is judged, and different times to open the door are selected according to different states, that is, different control strategies for opening the door are selected.

[0158] When it is determined that the current state of the washing machine is the standby state, it is determined to directly open the door of the washing machine.

[0159] By adopting the washing machine door control method provided in this embodiment, the washing machine automatically controls the door to open according to the feedback signal of the sensing device. The user only needs to perform a first physical action to make the sensing device generate a feedback signal. There is no need to manually open the washing machine door. This can free up both hands to improve convenience and prevent young children from accidentally entering the washing machine drum when manually opening the door.

[0160] Optionally, in an implementation of this embodiment, after determining the current state of the washing machine, if the washing machine is currently in a washing state, the following exemplary process may be performed, including the following sub-steps:

[0161] Sub-step 1: when the washing machine is in a washing state, determining a first water level in a washing tub of the washing machine;

[0162] Sub-step 2: comparing the first water level with the preset water level to obtain a first comparison result;

[0163] The preset water level can be set as the door seal water level, and the door can be opened when the water level is lower than the door seal water level. In addition, the preset water level can also be set to 10% of the water level of the washing tub.

[0164] Sub-step 3: Using the rule that matches the first comparison result to control the electric door switch device.

[0165] An exemplary method of controlling the electric door switch device by using a rule matching the first comparison result may be as follows:

[0166] When the water level is lower than the preset water level, the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine;

[0167] When the water level is higher than or equal to the preset water level, the drainage program is started to drain the washing tub until the water level in the washing tub is lower than the preset water level and the drainage is stopped. The electric door switch device is powered on to trigger the electric door switch device to open the door of the washing machine.

[0168] An exemplary operation process is: after the sensing device determines that the user triggers the door of the washing machine to open by the first body movement, the current running program is confirmed to determine the current state of the washing machine. When the current running program is the washing program, the following operations are performed:

[0169] Check whether the water level in the washing tub is greater than A. If the water level is lower than A, the door will be opened directly; if the water level is higher than A, the drainage component will be opened, and the door will be opened after the water level in the tub is lower than A.

[0170] This optional implementation can effectively avoid the phenomenon of water flowing out of the washing machine drum due to blindly opening the washing machine door.

[0171] Optionally, in an implementation of this embodiment, after determining the current state of the washing machine, if the washing machine is currently in a washing tub heating state, the following exemplary process may be performed, including the following sub-steps:

[0172] Sub-step 1: when the washing machine is in a washing tub heating state, determining a first temperature in the washing tub;

[0173] The washing tub heating state may include but is not limited to: a drying or steam care program is turned on.

[0174] Sub-step 2: comparing the first temperature with the preset temperature to obtain a second comparison result;

[0175] Preferably, the preset temperature is set to 35° C. 0° C. ≤ T ≤ 35° C. There is no water vapor in this temperature range, so the first temperature needs to be lower than the upper limit of this temperature range.

[0176] Sub-step 3: Using the rule that matches the second comparison result to control the electric door switch device.

[0177] An exemplary method of controlling the electric door switch device by using a rule matching the second comparison result may be as follows:

[0178] When the first temperature is lower than the preset temperature, the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine;

[0179] When the second temperature is equal to or higher than the preset temperature, the preset operation is executed to cool the washing tub until the temperature of the washing tub is lower than the preset temperature and the cooling is stopped, and the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine.

[0180] A feasible process for executing the preset operation to cool down the washing tub may be to turn off the turned-on washing tub heating module, detect the return air starting temperature to obtain a first temperature; turn on the air duct spray valve to cool down the temperature in the washing tub; detect the return air temperature drop threshold per unit time; determine the time taken for cooling down based on the first temperature, the preset temperature and the return air temperature drop threshold per unit time, and output the time taken for cooling down to the user.

[0181] The time taken can be calculated by the following formula: t = (T1-T) / ΔT, where T1 is the return air starting temperature, T is the preset temperature, and ΔT is the return air temperature drop threshold per unit time. ΔT can be detected by a temperature sensor installed at the return air outlet, and the detection method is to record a single temperature value within the same interval time and then calculate it.

[0182] An exemplary operation process is: after the sensing device determines that the user triggers the washing machine door to open by the first body movement, confirm the current running program to determine the current state of the washing machine. When the current running program is a drying or steam care program, perform the following operations:

[0183] Detect whether the temperature in the washing tub is greater than T? If the temperature is lower than T, open the door directly; if the temperature is higher than T, turn off the drying or steam heating module, detect the return air starting temperature T1, open the air duct spray valve to cool down the tub temperature, detect the return air temperature unit time drop threshold ΔT, and feedback the door opening waiting time: t = (T1-T) / ΔT.

[0184] This strategy of optionally opening the door of the washing machine after the temperature in the washing tub drops to a preset temperature can prevent moisture from gushing out of the washing tub or overheating to cause discomfort to the user.

[0185] It should be noted that the above are only illustrative examples of three strategies for controlling the opening of the washing machine door after detecting that the user triggers the washing machine door opening command through the first limb under three working conditions. In the actual implementation process, technical personnel in this field can flexibly set the corresponding washing machine door opening strategies under various conditions according to actual needs.

[0186] Optionally, in an implementation of this embodiment, when the electric-controlled door switch device is a device composed of an electromagnetic sequence coil and two permanent magnets, after the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine, the method further includes the following steps:

[0187] First, in the second mode, the third feedback signal of the first sensing device and the fourth feedback signal of the second sensing device are monitored.

[0188] In the second mode, the washing machine door can be closed according to the second body movement of the user. The second mode is similar to the opening method of the first mode. The third sensing device can also monitor whether the user is in front of the washing machine. When the user is detected, a feedback signal is generated and sent to the washing machine control system. The control system starts the second mode after receiving the feedback signal. The control system can also automatically switch from the first mode to the second mode after the washing machine door is opened.

[0189] Secondly, determining a second interval duration between the received third feedback signal and the received fourth feedback signal;

[0190] Finally, when the second interval duration matches the second duration, the electromagnetic coil is energized to close the door.

[0191] The second duration is the duration corresponding to the second limb movement preset by the user. The first limb movement and the second limb movement can be the same or different, and the first duration and the second duration can be the same or different accordingly. In the embodiment of the present application, there is no specific limitation on the specific action indicated by the second limb movement.

[0192] Optionally, in an implementation of this embodiment, when the electric-controlled door switch device is a device composed of an electromagnetic sequence coil and two permanent magnets, after the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine, the method further includes the following steps:

[0193] The washing machine automatically switches from the first mode to the second mode after the door is opened; in the second mode, it is determined whether feedback signals from the first sensing device, the second sensing device, and the third sensing device are received within a third preset time period; if not, it is determined that the user has left the washing machine, and the electromagnetic coil is powered on to close the door.

[0194] The third preset time length can be flexibly set by those skilled in the art, and there is no specific limitation on this in the embodiment of the present application. The third preset time length can be set to 5-10s, for example: the third preset time length is set to 5s, 7s or 10s, etc.

[0195] In this optional embodiment, the feedback signals of the three sensing devices can be combined to automatically identify whether the user has left the washing machine, and the door can be automatically closed after it is determined that the user has left the washing machine, thereby improving the user experience.

[0196] It should be noted that when the electric-controlled door switch device is an electric push rod, the door can be closed manually by the user.

[0197] According to an embodiment of the present application, a method for controlling a door of a washing machine is provided. Figure 6 , methods include:

[0198] S0: In standby mode, the additional sensor continues to monitor to determine whether the additional sensor feedback signal.

[0199] By determining whether the additional sensor feeds back a signal, it can be confirmed whether the user is close to the washing machine. Specifically, if the additional sensor feeds back a signal, it is determined that the user is close to the washing machine; otherwise, if the additional sensor does not feed back a signal, it is determined that the user is not close to the washing machine.

[0200] In this embodiment, the door is opened by controlling the push rod motor. This embodiment cannot realize the automatic door closing action. The three sensors provided on the washing machine can also be called three sensing devices. The accessory sensor is the third sensing device shown in the above embodiment. The layout of the three sensing devices on the washing machine can refer to Figure 3 The additional sensor is located above half the height of the entire machine. This position is set to monitor the height of adults to prevent minors, pets or sweeping robots from misjudging the automatic door opening.

[0201] When the additional sensor is an infrared sensor, the infrared sensor provides feedback through an electrical signal; when the additional sensor is a visual sensor, the visual sensor provides feedback through image recognition.

[0202] S1: If the additional sensor feedback signal, it will enter the user action automatic door opening mode;

[0203] The first mode is the automatic door opening mode by user action.

[0204] S2: Determine whether infrared sensor 1 feedbacks a signal;

[0205] S3: If yes, determine whether the infrared sensor 2 feeds back a signal.

[0206] If either infrared sensor 1 or infrared sensor 2 does not provide a feedback signal, it is necessary to return to monitor again. If both of them provide a feedback signal, the subsequent process is executed.

[0207] S4: Determine whether the interval time T between the feedback signals of infrared sensor 1 and infrared sensor 2 is less than the first preset time length; if so, execute S5; if not, return to execute S1.

[0208] S2~S4 are for the user to free his hands to operate. The user opens the door by sweeping the leg. The sweeping leg action can be from left to right or from right to left. The user can customize it in the setting page according to his own usage habits. The sweeping leg action passes through the two infrared sensors at the bottom. Each time an infrared sensor is passed, the control system receives a feedback signal. By comparing the interval time T of the feedback signals of the two infrared sensors with the first preset time length ΔT, it is determined whether the user is using the sweeping leg action to open the door.

[0209] Preferably, the value range of ΔT is 2s to 5s, and the judgment based on the first preset time comparison can prevent minors, pets or sweeping robots from misjudging the automatic door opening.

[0210] S5: It is determined that the user has opened the door by sweeping his legs, and the push rod motor is energized to push the door open.

[0211] According to an embodiment of the present application, a method for controlling a washing machine door is provided. By controlling the electromagnetic coil to open and close the door, this embodiment can realize automatic door opening and closing. Figure 7 , methods include:

[0212] S0: In standby mode, the additional sensor continues to monitor and determine whether the additional sensor feedbacks a signal;

[0213] In the embodiment of the present application, three sensing devices are arranged on the washing machine. The installation positions of the three sensing devices refer to Figure 3 In addition, the washing machine is also provided with an electric door switch device composed of an electromagnetic coil and at least two permanent magnets. The structure and installation position of the electric door switch device are shown in FIG. Figure 4 , Figure 5 As shown, no further description is given here.

[0214] S1: If the additional sensor feedback signal, it will enter the user action automatic door opening mode;

[0215] The first mode is the automatic door opening mode by user action.

[0216] S2: Determine whether infrared sensor 1 feedbacks a signal;

[0217] S3: If yes, determine whether the infrared sensor 2 feeds back a signal.

[0218] If either infrared sensor 1 or infrared sensor 2 does not provide a feedback signal, it is necessary to return to monitor again. If both of them provide a feedback signal, the subsequent process is executed.

[0219] S4: Determine whether the interval time T between the feedback signals of infrared sensor 1 and infrared sensor 2 is less than the first preset time length; if so, execute S5; if not, return to execute S1.

[0220] S2~S4 are for the user to free his hands to operate. The user opens the door by sweeping the leg. The sweeping leg action can be from left to right or from right to left. The user can customize it in the setting page according to his own usage habits. The sweeping leg action passes through the two infrared sensors at the bottom. Each time an infrared sensor is passed, the control system receives a feedback signal. By comparing the interval time T of the feedback signals of the two infrared sensors with the first preset time length ΔT, it is determined whether the user is using the sweeping leg action to open the door.

[0221] Preferably, the value range of ΔT is 2s to 5s, and the judgment based on the first preset time comparison can prevent minors, pets or sweeping robots from misjudging the automatic door opening.

[0222] S5: It is determined that the user has opened the door by sweeping his legs, the electromagnetic coil is energized, and the door opens.

[0223] Refer to the attached Figure 4 , 4 As shown, when the door body is closed, permanent magnet 1 is close to the electromagnetic coil; when the door body is opened, permanent magnet 2 is close to the electromagnetic coil; when the door body moves from closed to open, the electromagnetic coil is energized, so that the electromagnetic coil and permanent magnet 1 repel each other, and the door body is pushed open, and the permanent magnet 2 is close to the electromagnetic coil during the door body pushing open process; when the door body moves from open to closed, the electromagnetic coil is energized, so that the electromagnetic coil and permanent magnet 2 repel each other, and the door body is closed, and the permanent magnet 1 is close to the electromagnetic coil during the door body closing process.

[0224] Specifically, in S5, it is determined that the user opens the door by sweeping his legs, and the electromagnetic coil is energized, forming mutual repulsion with permanent magnet 1, and the door body is pushed open; after the door body is pushed open, permanent magnet 1 moves away from the electromagnetic coil, and permanent magnet 2 approaches the electromagnetic coil.

[0225] S6: Enter the user action automatic door closing mode.

[0226] The second mode is the user action automatic door closing mode.

[0227] S7: Determine whether the infrared sensor 1 feeds back a signal within a predetermined time; if not, execute S8; if yes, return to execute S6.

[0228] S8: Determine whether the infrared sensor 2 feeds back a signal within a predetermined time; if not, execute S9; if yes, return to execute S7.

[0229] S9: Determine whether the additional sensor feeds back a signal within a predetermined time; if not, execute S10; if so, return to execute S6.

[0230] S7 to S9 correspond to the scenario where the user cannot close the door of the washing machine after taking the clothes. At this time, the additional sensor, infrared sensor 1, and infrared sensor 2 first perform signal feedback detection on the two infrared sensors set at the bottom. If there is no signal output within the predetermined time, it is determined whether the additional sensor feedbacks the signal within the predetermined time. If there is no signal feedback, it is determined that the user has left the washing machine, where the predetermined time range can be set to 5s-10s. After determining that the user has left the washing machine through the coordination of S7-S9 multi-sensors, S10 is executed.

[0231] S10: The electromagnetic coil is energized and the door is closed.

[0232] After determining that the user has left the washing machine, the electromagnetic coil is energized to form mutual repulsion with the permanent magnet 2, and the door is closed. At this time, the permanent magnet 2 is away from the electromagnetic coil, and the permanent magnet 1 is close to the electromagnetic coil.

[0233] The washing machine door control method provided in the embodiment of the present application, on the one hand, allows the user to open the washing machine door without using both hands, giving the user a better user experience; on the second hand, the automatic opening / closing mechanism of the door reduces costs while enhancing the reliability of the mechanism's operation compared to the prior art; on the third hand, the additional conditions for opening the door determined by the sensor in collaboration greatly reduce the number of accidental opening operations when not in use by the user.

[0234] According to an embodiment of the present application, a washing machine door control device is provided. The washing machine door control device is applied to a washing machine comprising a first sensing device, a second sensing device and an electric door switch device. Figure 8 , the washing machine door control device includes the following functional modules:

[0235] A first monitoring module 700 is used to monitor a first feedback signal of the first sensing device and a second feedback signal of the second sensing device in a first mode, wherein the washing machine door can be opened according to a first body movement of a user in the first mode;

[0236] A first determining module 702, configured to determine a first interval duration between the first feedback signal and the second feedback signal received;

[0237] A second determination module 704 is used to determine the current state of the washing machine when the first interval duration matches a first duration, wherein the first duration is a duration corresponding to a first limb movement preset by a user;

[0238] The control module 706 is used to power on the electric-controlled door switch device when the current state is the standby state, so as to trigger the electric-controlled door switch device to open the door of the washing machine.

[0239] Optionally, in an implementation of this embodiment, the washing machine further includes a third sensing device, and the device further includes:

[0240] a second monitoring module, configured to monitor a third feedback signal of a third sensing device before the first monitoring module monitors the first feedback signal of the first sensing device and the second feedback signal of the second sensing device;

[0241] The mode switching module is used to enter the first mode when the third feedback signal is detected, wherein the washing machine door is opened according to the user action in the first mode.

[0242] Optionally, in an implementation of this embodiment, the first sensing device and the second sensing device are arranged in a preset area on the front of the washing machine; wherein the preset area is a front area less than half the height of the entire washing machine; and the third sensing device is arranged at the end position of the front of the washing machine.

[0243] Optionally, in an implementation of this embodiment, the device further includes:

[0244] a water level determination module, configured to determine a first water level in a washing tub of the washing machine when the washing machine is in a washing state;

[0245] A first comparison module, used for comparing the first water level with a preset water level to obtain a first comparison result;

[0246] The first control module is used to control the electric-controlled door switch device by adopting a rule matching the first comparison result.

[0247] Optionally, in an implementation of this embodiment, the first control module includes:

[0248] The first submodule is used for powering on the electric-controlled door switch device when the water level is lower than a preset water level, so as to trigger the electric-controlled door switch device to open the door of the washing machine;

[0249] The second submodule is used to start the drainage program to drain the washing tub when the water level is higher than or equal to the preset water level, and stop draining when the water level in the washing tub is lower than the preset water level, and to power on the electric-controlled door switch device to trigger the electric-controlled door switch device to open the door of the washing machine.

[0250] Optionally, in an implementation of this embodiment, the device further includes:

[0251] a temperature determination module, configured to determine a first temperature in the washing tub when the washing machine is in a washing tub heating state;

[0252] A second comparison module, used for comparing the first temperature with a preset temperature to obtain a second comparison result;

[0253] The second control module is used to control the electric-controlled door switch device by adopting a rule matching the second comparison result.

[0254] Optionally, in an implementation of this embodiment, the second control module includes:

[0255] A third submodule is used for powering on the electric-controlled door switch device to trigger the electric-controlled door switch device to open the door of the washing machine when the first temperature is lower than the preset temperature;

[0256] The fourth submodule is used to execute a preset operation to cool the washing tub when the second temperature is equal to or higher than the preset temperature, and stop cooling the washing tub until the temperature of the washing tub is lower than the preset temperature, and to power on the electric-controlled door switch device to trigger the electric-controlled door switch device to open the door of the washing machine.

[0257] Optionally, in an implementation of this embodiment, when the fourth submodule executes a preset operation to cool the washing tub, it is specifically used to:

[0258] Turn off the turned-on washing tub heating module, and detect the return air starting temperature to obtain a first temperature;

[0259] Opening the air duct spray valve to cool down the temperature in the washing tub;

[0260] Detect the return air temperature drop threshold per unit time;

[0261] The time taken for cooling down is determined according to the first temperature, the preset temperature and the return air temperature drop threshold per unit time, and the time taken for cooling down is output to the user.

[0262] Optionally, in an implementation of this embodiment, the electrically controlled door switch device is a push rod motor; the push rod motor is arranged on the area where the edge of the washing machine drum overlaps with the door body.

[0263] Optionally, in an implementation of this embodiment, the electric-controlled door switch device includes: an electromagnetic coil, a first permanent magnet and a second permanent magnet;

[0264] The electromagnetic coil is arranged on a hinge connecting the edge of the washing tub of the washing machine and the door body;

[0265] The first permanent magnet and the second permanent magnet are respectively arranged on both sides of the electromagnetic coil;

[0266] The electromagnetic coil is powered on to repel the first permanent magnet, the door is opened, and the distance between the second permanent magnet and the electromagnetic coil is reduced;

[0267] The electromagnetic coil is powered on again to repel the second permanent magnet, the door body is closed, and the distance between the first permanent magnet and the electromagnetic coil is reduced.

[0268] Optionally, in an implementation of this embodiment, after the step of powering on the electric-controlled door switch device to trigger the electric-controlled door switch device to open the door of the washing machine, the device further includes:

[0269] A third monitoring module is used to monitor a third feedback signal of the first sensing device and a fourth feedback signal of the second sensing device in a second mode, wherein the washing machine door can be closed according to a second body movement of the user in the second mode;

[0270] a duration determination module, configured to determine a second interval duration between the received third feedback signal and the received fourth feedback signal;

[0271] A power-on module is used to power on the electromagnetic coil to close the door when the second interval duration matches the second duration, wherein the second duration is the duration corresponding to the second limb movement preset by the user.

[0272] about Figure 8 For a more detailed description of the related operations, please refer to the description in the previous method embodiment, which will not be repeated here.

[0273] An embodiment of the present invention further provides a product that implements various method embodiments of the present invention, and the product may be a computer software product, or an electronic device or hardware product that installs or integrates the computer software product, and at least two sensing devices and an electric door switch device are provided on the outer surface of the electronic device. Preferably, the electronic device is a washing machine. The washing machine may execute the method shown in any of the above method embodiments to control the door of the washing machine. The washing machine may also be provided with the washing machine door control device shown in the above device embodiment to control the door of the washing machine.

[0274] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0275] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0276] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0277] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0278] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0279] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0280] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0281] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for controlling a door of a washing machine, characterized in that: The method is applied to a washing machine provided with a first sensing device, a second sensing device and an electric-controlled door switch device, and the method comprises: Monitoring step: monitoring a first feedback signal of the first sensing device and a second feedback signal of the second sensing device, wherein the first sensing device and the second sensing device are used to detect the user's lower limb movements in combination; At least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine, the action of the electric-controlled door switch device is controlled to control the state of the door of the washing machine.

2. The method according to claim 1, characterized in that The method further comprises: The monitoring step is performed in response to a trigger signal, wherein the trigger signal comprises: a feedback signal of a third sensing device, the third sensing device being arranged above the first sensing device and the second sensing device and being used for detecting an upper limb of a user, and / or A washing machine state signal is generated according to the current state of the washing machine, indicating that the washing machine door is allowed to change state.

3. The method according to claim 2, characterized in that The step of performing the monitoring step in response to a trigger signal comprises: The monitoring step is performed in response to a feedback signal sent by the third sensing device indicating detection of an upper limb of the user; and / or, The monitoring step is performed in response to a feedback signal sent by the third sensing device indicating that the user's upper limb has not been detected for a set period of time.

4. The method according to claim 2, characterized in that: The first sensing device and the second sensing device are arranged in a first preset area on the front of the washing machine and are spaced apart in a width direction of the front of the washing machine, wherein the first preset area is a front area below half the height of the washing machine, corresponding to the legs and / or feet of the user; The third sensing device is arranged at a position above half of the height of the washing machine, corresponding to the upper limbs of the user.

5. The method according to claim 1, characterized in that The current state of the washing machine includes the running state of the washing machine and the door state of the washing machine door; The signal feedback conditions of the first sensing device and the second sensing device include the time interval between the first feedback signal and the second feedback signal, and / or the non-feedback duration during which at least one of the first sensing device and the second sensing device continuously fails to feed back the corresponding feedback signal; The method of controlling the action of the electric door switch device at least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine includes: When the running state is standby, the door state is closed, and the time interval is less than the first time length, the electric door switch device is controlled to open the door of the washing machine, and / or When the operation state is standby, the door state is open, and the duration of no feedback exceeds a second duration, controlling the electric door switch device to close the door of the washing machine, and / or, When the operating state is a door-openable state, the door state is closed, and the time interval is less than a first time length, controlling the electric door switch device to open the door of the washing machine; and / or, When the operating state is a door-unopenable state, the door state is closed, and the time interval is less than the first time length, the electric-controlled door switch device is controlled to perform an action of keeping the door of the washing machine closed.

6. The method according to claim 1, characterized in that The current state of the washing machine includes the environmental state of the washing machine and the door state of the washing machine door; The signal feedback conditions of the first sensing device and the second sensing device include: the time interval between the first feedback signal and the second feedback signal; The method of controlling the action of the electric door switch device to control the state of the door of the washing machine at least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine comprises: When the door is in the closed state and the time interval is less than the first time length, if the environmental state satisfies the door opening condition, the electric door switch device is controlled to open the door of the washing machine, and / or When the door state is closed and the time interval is less than the first time length, if the environmental state does not meet the door opening condition, the electric door switch device is controlled to perform the action of keeping the door of the washing machine closed.

7. The method according to claim 6, characterized in that The environmental state includes: the drum temperature and the drum water level of the washing machine; The environmental state does not meet the door opening condition, including: the temperature in the barrel exceeds a temperature threshold and / or the water level in the barrel exceeds a water level threshold.

8. The method according to claim 7, characterized in that The method further comprises: In the case where the environmental state does not satisfy the door opening condition, generating an environmental state change strategy and a corresponding strategy duration according to the environmental state and the operating state of the washing machine, wherein the environmental state change strategy is used to make the environmental state satisfy the door opening condition; Outputting at least one of the strategy duration and the environment state change strategy to a user to obtain user confirmation; After obtaining user confirmation, the environment state change strategy is executed.

9. The method according to claim 8, characterized in that When the environmental state does not meet the door opening condition, generating an environmental state change strategy and a corresponding strategy duration according to the environmental state and the running state of the washing machine includes: When the water level in the drum exceeds a water level threshold, a drainage strategy and a corresponding drainage time are generated according to the water level in the drum and the operating state of the washing machine, and / or, When the temperature in the drum exceeds a temperature threshold, generating a cooling strategy and a corresponding cooling time according to the temperature in the drum and the operating state of the washing machine; Among them, the operating state of the washing machine includes a non-stoppable stage and a stoppable stage. When the operating state of the washing machine is the non-stoppable stage, the environmental state change strategy includes the execution process of the non-stoppable stage, and the strategy duration includes the remaining duration of the non-stoppable stage and one of the drainage duration and the cooling duration. When the operating state of the washing machine is the stoppable stage, the environmental state change strategy includes a first strategy for continuing to execute the stoppable stage and a second strategy for terminating the stoppable stage.

10. The method according to claim 1, characterized in that The current state of the washing machine includes the water level in the drum of the washing machine under the washing program, and the operation of the electric door switch device is controlled to control the state of the door of the washing machine at least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine, including: When it is determined that the user has a need to open the door according to the signal feedback of the first sensing device and the second sensing device, the water level in the cylinder is compared with the water level threshold to obtain a first comparison result; The electrically controlled door switch device is controlled using a rule that matches the first comparison result.

11. The method according to claim 10, characterized in that The step of controlling the electric-controlled door switch device using a rule matching the first comparison result comprises: When the water level in the drum is lower than the water level threshold, the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine; When the water level in the drum is higher than or equal to the water level threshold, the drainage program is started to drain the washing tub until the water level in the drum is lower than the water level threshold, and the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine.

12. The method according to claim 1, characterized in that The current state of the washing machine includes the temperature in the drum of the washing machine in a drying program, and the operation of the electric door switch device is controlled to control the state of the door of the washing machine at least according to the signal feedback of the first sensing device and the second sensing device and the current state of the washing machine, including: When it is determined that the user has a need to open the door according to the signal feedback of the first sensing device and the second sensing device, the temperature in the barrel is compared with the temperature threshold to obtain a second comparison result; The electric-controlled door switch device is controlled using a rule that matches the second comparison result.

13. The method according to claim 12, characterized in that The step of controlling the electric-controlled door switch device by using a rule matching the second comparison result comprises: When the temperature in the drum is lower than the temperature threshold, powering on the electric-controlled door switch device to trigger the electric-controlled door switch device to open the door of the washing machine; When the temperature in the drum is equal to or higher than the preset temperature, a preset operation is performed to cool the washing tub until the temperature in the drum is lower than the temperature threshold, and the electric-controlled door switch device is powered on to trigger the electric-controlled door switch device to open the door of the washing machine.

14. The method according to claim 13, characterized in that The step of executing a preset operation to cool the washing tub comprises: Turning off the turned-on washing tub heating module and detecting the return air starting temperature to obtain a first temperature; Opening the air duct spray valve to cool down the temperature in the washing tub; Detect the return air temperature drop threshold per unit time; The time taken for cooling down is determined according to the first temperature, the temperature threshold and the return air temperature drop threshold per unit time, and the time taken for cooling down is output to the user.

15. The method according to claim 1, characterized in that The electric door switch device is a push rod motor; The push rod motor is arranged on the area where the edge of the washing machine tub and the door body overlap.

16. The method according to claim 1, characterized in that The electric-controlled door switch device comprises: an electromagnetic coil, a first permanent magnet and a second permanent magnet; The electromagnetic coil is arranged on a hinge connecting the edge of the washing tub of the washing machine and the door body; The first permanent magnet and the second permanent magnet are respectively arranged on both sides of the electromagnetic coil; The electromagnetic coil is powered on to repel the first permanent magnet, the door is opened, and the distance between the second permanent magnet and the electromagnetic coil is reduced; The electromagnetic coil is powered on again to repel the second permanent magnet, the door body is closed, and the distance between the first permanent magnet and the electromagnetic coil is reduced.

17. The method according to claim 16, characterized in that After the step of powering on the electric-controlled door switch device to trigger the electric-controlled door switch device to open the door of the washing machine, the method further includes: monitoring a third feedback signal of the first sensing device and a fourth feedback signal of the second sensing device in a second mode, wherein the washing machine door can be closed according to a second body movement of the user in the second mode; Determining a second interval duration between the received third feedback signal and the received fourth feedback signal; When the second interval duration matches the second duration, the electromagnetic coil is powered on to close the door, wherein the second duration is the duration corresponding to the second limb movement preset by the user.

18. The method according to claim 2, characterized in that The method further comprises: Determining whether a warning condition is met according to the signal feedback of the first sensing device and the second sensing device, and the detection result of the third sensing device; If the warning condition is met, output warning information; Wherein, the meeting of the warning condition includes: the third sensing device does not detect the upper limbs, the first sensing device and the second sensing device detect the user's lower limb movements, and the warning information includes: information related to the child's operation; When the first sensing device and the second sensing device are both located under the washing machine door, the warning conditions include: when the washing machine door is in the open state, the third sensing device does not detect the upper limbs, at least one of the first sensing device and the second sensing device continues to provide signal feedback and exceeds the set time, and the warning information includes: the door cannot be closed or is blocked by clothing.

19. An electronic device, characterized in that: The electronic device comprises: a memory for storing one or more computer instructions; A processor, configured to call and execute the computer instructions to implement the method according to any one of claims 1 to 18.

20. A washing machine, characterized in that: The washing machine is provided with a first sensing device, a second sensing device and an electric-controlled door switch device, the first sensing device and the second sensing device are used in combination to detect the user's lower limb movements, and the electric-controlled door switch device is used to control the state of the washing machine door; the washing machine adopts the method described in any one of claims 1 to 18, or has an electronic device described in claim 19.

21. The washing machine according to claim 20, characterized in that The washing machine further comprises a feedback signal of a third sensing device; Wherein, the third sensing device is arranged above the first sensing device and the second sensing device, and is used to detect the upper limbs of the user; and / or, The first sensing device and the second sensing device are arranged in a first preset area on the front of the washing machine and are spaced apart along the width direction of the front of the washing machine, wherein the first preset area is a front area below half the height of the entire washing machine, corresponding to the legs and / or feet of the user, or, The first sensing device and the second sensing device are both located below the door of the washing machine; The electric door switch device is a push rod motor; The push rod motor is arranged on the area where the edge of the washing machine tub and the door body overlap; The electric-controlled door switch device comprises: an electromagnetic coil, a first permanent magnet and a second permanent magnet; The electromagnetic coil is arranged on a hinge connecting the edge of the washing tub of the washing machine and the door body; The first permanent magnet and the second permanent magnet are respectively arranged on both sides of the electromagnetic coil; The electromagnetic coil is powered on to repel the first permanent magnet, the door is opened, and the distance between the second permanent magnet and the electromagnetic coil is reduced; The electromagnetic coil is powered on again to repel the second permanent magnet, the door body is closed, and the distance between the first permanent magnet and the electromagnetic coil is reduced.

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