A control system and control method for drum washing machine

Abstract

The disclosed embodiment provides a control system and control method for a drum washing machine, including: a space information acquisition module, used to acquire the first internal space information of the drum; the safety device includes: a first detection module, used to detect the object information inside the drum; a second detection module, used to further detect the object information inside the drum; a processing module, used to start the first detection module if it is judged that an object has entered according to the first internal space information of the drum; if it is judged that the object is a living being according to the object information returned by the first detection module, then start the second detection module; and when it is judged that the object is a living being according to the object information returned by the second detection module, a first control signal is generated; a communication module, used to send a first control signal to a control device; the control device, used to control the power drive circuit of the drum to be cut off according to the first control signal, and lock the drum. The disclosed embodiment can improve the safety of equipment use.

Description

Technical Field

[0001] The embodiments of the present disclosure belong to the technical field of smart home appliances, and particularly relate to a control system and a control method for a drum washing machine. Background Art

[0002] In recent years, with the development of economy and society, the popularity of drum washing machines in households has become increasingly higher, bringing great convenience to people's lives. However, the doors of drum washing machines are all opened on the side of the washing machine, and the doors are low to the ground. It is easy for children to climb into the washing machine when playing hide-and-seek or playing. If they touch the switch by mistake, dangerous situations will occur. Corresponding dangerous incidents have occurred in China. Most of the current drum washing machines are equipped with child locks to prevent children from misoperating. The effect is not very ideal in actual use, and there is a disadvantage of easy false alarm. In addition, the current drum washing machine provides a power connection between the socket and the drum washing machine through a power cord. Most users do not actively unplug the power cord after running the drum washing machine. In this way, the drum washing machine is still energized when it stops running, which actually poses certain safety hazards. Summary of the invention

[0003] The embodiments of the present disclosure aim to provide a control system and a control method for a drum washing machine, so as to improve the safety of using the drum washing machine.

[0004] In one aspect of an embodiment of the present disclosure, a control system of a drum washing machine is provided, which is used to control a drum body of the drum washing machine. The control system includes a spatial information acquisition module, a safety device, and a control device.

[0005] The space information acquisition module is used to acquire the first internal space information of the cylinder;

[0006] The safety device comprises:

[0007] A first detection module, used to detect information of objects inside the cylinder;

[0008] A second detection module is used to further detect information of objects inside the cylinder;

[0009] a processing module, configured to start the first detection module if it is determined that an object has entered according to the information of the first internal space of the cylinder; start the second detection module if it is determined that the object is a living being according to the object information returned by the first detection module; and generate a first control signal when it is determined that the object is a living being according to the object information returned by the second detection module;

[0010] a communication module, configured to send the first control signal to the control device;

[0011] The control device is used to control the cutting off of the power drive circuit of the cylinder and lock the cylinder according to the first control signal.

[0012] Optionally, the spatial information acquisition module includes a camera or a pressure sensor or an ultrasonic level meter; the first detection module is a life detection device, including a temperature sensor or a camera; the second detection module is a life detection device of a different type from the first detection module, including a temperature sensor or a camera.

[0013] Optionally, the space information acquisition module is further used to acquire the second internal space information of the cylinder;

[0014] The processing module is further configured to generate a second control signal after generating the first control signal if it is determined according to the information of the second internal space of the cylinder that no object has entered;

[0015] The communication module is further used to send the second control signal to the control device;

[0016] The control device is also used to receive the second control signal and perform a reset operation according to the second control signal to restore the power drive circuit of the cylinder and unlock the cylinder.

[0017] Optionally, the communication module is further used to send first image information including first internal space information of the cylinder to the control device;

[0018] The control device is further used to control the cutting off of the power drive circuit of the cylinder and locking the cylinder according to the first image information; and / or,

[0019] The communication module is further used to send the second image information including the second internal space information of the cylinder to the control device;

[0020] The control device is also used to restore the power drive circuit of the cylinder and unlock the cylinder when it is determined that a reset operation needs to be performed based on the second image information.

[0021] Optionally, the safety device further comprises a housing and a bottom plate which are sealed and connected, and the safety device is arranged in a containing space formed by the housing and the bottom plate which are sealed and connected;

[0022] The safety device is snap-connected with the inside of the cylinder through the bottom plate; and / or the shell includes at least one transparent portion, and the transparent portion is used for the first detection module or the second retrieval module to collect the image of the inside of the cylinder through the transparent portion.

[0023] Optionally, a micro-vibration power generation device and an energy storage device are also provided on the bottom plate, and the processing module is further used to control the micro-vibration power generation device to generate electricity during the vibration process following the rotation of the cylinder, and store the electric energy in the energy storage device, and the energy storage device is used to power the safety device; or,

[0024] A charging receiving coil and an energy storage device are also provided on the bottom plate, a wireless charging coil is provided outside the cylinder, and the control device is also used to control the charging of the charging receiving coil through the wireless charging coil and store the electrical energy in the energy storage device, and the energy storage device is used to power the safety device.

[0025] Another aspect of the present invention provides a control method for a drum washing machine, wherein a control system is used to control a drum body of the drum washing machine, wherein the control system includes a spatial information acquisition module, a safety device, and a control device, and the method includes:

[0026] Acquiring the internal space information of the cylinder;

[0027] If it is determined that an object has entered according to the internal space information of the cylinder, the first detection module is activated;

[0028] If the object is determined to be a living being according to the object information returned by the first detection module, the second detection module is activated;

[0029] If the object is determined to be a living being according to the object information returned by the second detection module, a first control signal is sent to the control device;

[0030] The control device controls to cut off the power drive circuit of the cylinder according to the first control signal and locks the cylinder.

[0031] Optionally, after sending the first control signal to the control device, the method further includes:

[0032] Acquiring information of the second inner space of the cylinder;

[0033] If it is determined according to the information of the second internal space of the cylinder that no object has entered, a second control signal is sent to the control device;

[0034] The control device receives the second control signal and performs a reset operation according to the second control signal to restore the power drive circuit of the cylinder and unlock the cylinder.

[0035] Optionally, the method further includes:

[0036] Acquire first image information including first internal space information of the cylinder;

[0037] sending the first image information to the control device;

[0038] The control device controls to cut off the power drive circuit of the cylinder according to the first image information, and locks the cylinder; and / or,

[0039] Acquire second image information including second internal space information of the cylinder;

[0040] sending the second image information to the control device;

[0041] When the control device determines that a reset operation needs to be performed based on the second image information, it restores the power drive circuit of the cylinder and unlocks the cylinder.

[0042] Optionally, the method further includes:

[0043] By providing a micro-vibration power generation device and an energy storage device, the micro-vibration power generation device is controlled to generate electricity during the vibration process of following the rotation of the cylinder, and the electric energy is stored in the energy storage device, and the energy storage device is used to power the safety device; or,

[0044] By setting a shell outside the safety device, setting a charging receiving coil and an energy storage device inside the shell, and setting a wireless charging coil outside the cylinder, the charging receiving coil is controlled to be charged through the wireless charging coil, and the electric energy is stored in the energy storage device, and the energy storage device is used to power the safety device.

[0045] The disclosed embodiment of the present invention can prevent the safety device from working for a long time by starting the safety device after determining that an object has entered the drum space of the drum washing machine, thereby reducing hardware loss and saving system overhead. After starting the safety device, the disclosed embodiment of the present invention first performs a preliminary life detection, that is, first determines whether the object includes a life through a life detection method, and when the preliminary judgment confirms the existence of a life, another life detection method is executed, thereby preventing the disadvantage of misjudgment caused by a single life detection method through a two-step judgment method, and improving the accuracy of the judgment. In the disclosed embodiment of the present invention, the power drive circuit of the drum is cut off according to the first control signal, which can prevent the safety hazard caused by the drum continuing to be energized, and by locking the drum, it can avoid sprains caused by children's improper force causing the drum to rotate, thereby enhancing the safety of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the control system structure of a drum washing machine according to an embodiment of the present disclosure;

[0047] Figure 2This is a schematic structural diagram of a locking device according to an embodiment of the present disclosure;

[0048] Figure 3 It is a structural schematic diagram of a safety device according to an embodiment of the present disclosure;

[0049] Figure 4 A schematic diagram of functional modules of a safety device according to another embodiment of the present disclosure;

[0050] Figure 5 It is a structural schematic diagram of a wireless charging coil according to an embodiment of the present disclosure;

[0051] Figure 6 This is a schematic flow chart of a control method for a drum washing machine according to an embodiment of the present disclosure;

[0052] Figure 7 The figure is a flowchart of a wireless charging method according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0054] In actual use, there is a danger that children may easily climb into the drum of a drum washing machine. The existing method of setting a child lock to prevent children from misoperating is prone to false alarms, and the existing child lock method can only prohibit the regular washing process, and the drum can still rotate. If the child uses improper force, it may also cause the child to sprain. More importantly, the inner wall of the drum is made of metal. If there is internal leakage, only prohibiting the regular process may also cause the child to be electrocuted. In addition, if the guardian is not at home or is far away, even if there is a danger, the guardian cannot be reminded in time; based on this, the present disclosure provides a control system and control method for a drum washing machine, which improves the accuracy of judging whether a living being enters the washing machine, ensures the safety of the living being by performing corresponding safety operations, and further realizes remote control of the drum washing machine.

[0055] like Figure 1 The control system of the drum washing machine disclosed in this embodiment is used to control the drum body of the drum washing machine, and is characterized in that the control system includes a spatial information acquisition module 10, a safety device 11 and a control device 12.

[0056] The space information acquisition module 10 is used to acquire the first internal space information of the cylinder;

[0057] The safety device 11 comprises:

[0058] A first detection module 110 is used to detect information of objects inside the cylinder;

[0059] The second detection module 111 is used to further detect the information of the object inside the cylinder;

[0060] The processing module 112 is used to start the first detection module if it is determined that an object has entered according to the information of the first internal space of the cylinder; start the second detection module if it is determined that the object is a living being according to the object information returned by the first detection module; and generate a first control signal when it is determined that the object is a living being according to the object information returned by the second detection module;

[0061] A communication module 113, configured to send the first control signal to the control device;

[0062] The control device 12 is used to control the cutting off of the power drive circuit of the cylinder according to the first control signal and to lock the cylinder.

[0063] The disclosed embodiment starts the safety device after judging that an object has entered the drum space, so that the safety device can avoid long-term operation, reduce hardware loss, and save energy. After starting the safety device, the disclosed embodiment first performs a preliminary life body detection, that is, first judges whether the object includes a life body through a life body detection method, and when the preliminary judgment confirms that there is a life body, another life body detection method is performed, so that the disadvantage of misjudgment caused by a single life body detection method is prevented through a two-step judgment method, and the accuracy of the judgment is improved, and the accuracy of the control system is improved. In the disclosed embodiment, the modules included in the safety device are independently integrated. Through the independently set safety device, the internal information of the drum can be obtained according to the application needs, and it can be judged whether a life body has entered, and a first control signal can be sent to the control device. According to the first control signal, the power drive circuit of the drum is controlled to be cut off to prevent the safety hazards caused by the drum continuing to be charged, and the method of only cutting off the power supply of the drum will not affect the operation of other parts of the drum washing machine. For example, when some functions of the drum washing machine control panel require the power supply to continue to be supplied, the method of cutting off the power supply of the drum will not have any impact on other functions of the drum washing machine under the premise of ensuring the safety of the drum contactor. By locking the cylinder, sprains caused by the cylinder rotating due to improper force applied by children can be avoided. The embodiment of the present disclosure enhances the safety of the device.

[0064] The following is a detailed description of various aspects of the control system of this embodiment.

[0065] In this embodiment, the spatial information acquisition module 10 can be a camera, a pressure sensor, or an ultrasonic level meter; the first detection module 110 is a life detection device, which is a temperature sensor or a camera; the second detection module 111 is a life detection device of a different type from the first detection module 110, and can also be a camera or a temperature sensor.

[0066] The spatial information acquisition module 10 is used to acquire the internal spatial information of the cylinder, including:

[0067] Acquiring the internal space information of the cylinder through a space information detection device, including: acquiring the internal space information of the cylinder through a camera, or acquiring the internal space information of the cylinder through a pressure sensor, or acquiring the internal object information of the cylinder through an ultrasonic level meter;

[0068] The processing module 112 determines that an object has entered based on the internal space information of the cylinder, including: determining that an object has entered through image information collected by a camera, or determining that an object has entered through output data of a pressure sensor, or determining that an object has entered through a feedback signal of an ultrasonic level meter. In this embodiment, the safety device 11 is activated only after it is determined that an object has entered the cylinder, which can avoid the loss of the equipment itself caused by the long-term operation of the safety device 11 and save system overhead.

[0069] In another embodiment of the present disclosure, the spatial information acquisition module 10 may also be disposed inside the safety device 11, which is not limited in the present disclosure.

[0070] In this embodiment, the first detection module 110 is a life detecting device, which may be a temperature sensor or a camera. The processing module 112 determines that the object is a life according to the object information returned by the first detection module 110, including the following application scenarios:

[0071] When the first detection module 110 is a temperature sensor, the processing module 112 determines that the object is a living organism through the temperature range information returned by the temperature sensor, and the second detection module 111 is a living organism detection device of a different type from the first detection module. In this application scenario, the second detection module 111 is a camera, and the processing module 112 determines that the object is a living organism through comparison of image information returned by the camera.

[0072] The temperature sensor may be an infrared temperature sensor. When the processor 112 determines that the temperature sensor detects that there is a temperature zone corresponding to a living organism inside the drum, for example, the temperature interval corresponding to the information returned by the infrared temperature sensor is 34-40 degrees, the processor 112 determines that there is a living organism in the internal space of the drum. In this embodiment, the temperature interval is set around the normal human body temperature of 36.5 degrees, and its purpose is to identify the possible existence of children; of course, if other organisms need to be identified in other application scenarios, temperature intervals corresponding to other living organisms can be set. The temperature zone inside the drum means that the temperature of a part of the drum is within a preset temperature range. The infrared sensor can detect whether there is infrared light of a wavelength corresponding to the human body temperature range in the drum. In a specific embodiment, a suitable infrared sensor needs to be selected, and the sensitive wavelength range of the infrared sensor should include the infrared wavelength corresponding to the normal human body temperature.

[0073] In another embodiment of the present disclosure, infrared thermal image data of a living organism in a cylinder can also be acquired by using an infrared thermal imaging sensor. The infrared thermal imaging sensor can identify the heat emitted by the organism and can draw an infrared thermal image of the organism based on the difference between the temperature of the organism and the ambient temperature inside the cylinder.

[0074] In order to improve the accuracy of the judgment, when the processor 112 judges that the object is a living organism based on the temperature data obtained by the first detection module 110, the second detection module 111 is started to further judge whether the object is a living organism. In this embodiment, the second detection module 111 is a camera device for collecting image information inside the cylinder, and the image information can be video image information. The processing module 112 performs segmentation processing by intercepting key frame images in the video image, and uses a pre-trained neural network model to identify whether there are characteristics of a living organism; or directly obtains the captured two-dimensional image information, and the processing module 112 uses a pre-trained neural network model to identify whether there are characteristics of a living organism, and the pre-trained neural network model is obtained by learning multiple groups of samples, each group of samples includes multiple sample first images and multiple sample second images, wherein the sample second image includes characteristics of a living organism.

[0075] In an embodiment of the present disclosure, the control device can be arranged in the drum washing machine body, for example, it can be arranged in the control system included in the drum washing machine body and integrated with other control functions of the drum washing machine. In another embodiment of the present disclosure, the control device can also be arranged in a user terminal device, and the user terminal device refers to an electronic device with a wireless connection function, such as a handheld terminal device, a vehicle-mounted terminal device, etc. The terminal device can communicate with the above-mentioned drum washing machine by connecting to the Internet, or it can directly communicate with the above-mentioned drum washing machine through Bluetooth, wifi, etc. The user terminal device can be, for example, a personal computer, a mobile phone, a personal digital assistant, a media player, a wearable device, or a combination of any of these devices.

[0076] In another embodiment of the present disclosure, the control system of the drum washing machine further includes: a safety control function start-stop unit, which is used to send instructions to the spatial information acquisition module when it is determined that the safety control function needs to be executed. The safety control function start-stop unit can be set in the control device, can be set in the drum washing machine body together with the control device, and can also be set in the user terminal device, and the user can start or stop the safety control function as needed. For example, when the user is at home, there is no need to start the safety control function, and when the user is out, it is determined that the safety control function needs to be started, and the safety control function can be started by sending instructions to the spatial information acquisition module through the safety control function start-stop unit. The spatial information acquisition module. This can better meet user needs and avoid the system overhead increased by the spatial information acquisition module working all the time. Of course, in another embodiment of the present disclosure, the control device also includes a timing unit, which is used to send instructions to the spatial information acquisition module after the preset time is reached. This can meet the user's need to delay the start of the safety control function.

[0077] In the disclosed embodiment, the control device 12 controls to cut off the power drive circuit of the cylinder according to the first control signal, and locks the cylinder.

[0078] When the control device 12 is arranged in the control system included in the drum washing machine body and integrated with other control functions of the drum washing machine, the control device 12 controls the driving power supply to provide power to the drum body to control the rotation of the drum body. In this embodiment, a separate switch is arranged between the driving power supply and the drum motor, so that after receiving the first control signal, the control device 12 controls to disconnect the separate switch according to the first control signal to cut off the power drive circuit of the drum body. In this way, the control device 12 is arranged in the control system included in the drum washing machine body, and has the characteristics of fast execution speed. It can ensure that when it is judged that there is a living body in the drum body, the drum body is kept uncharged to protect the safety of the living body and enhance the safety of the use of the drum washing machine. In addition, by setting a separate switch, the power supply of the drum body can be controlled separately, and when the power supply of the drum body is cut off, it will not affect other functions of the drum washing machine.

[0079] When the control device 12 is arranged in a user terminal device, the drum washing machine further includes: a control function execution unit. After the user terminal device receives the first control signal, the user terminal device further determines and sends an instruction to cut off the power drive circuit of the drum body and lock the drum body to the control function execution unit of the drum washing machine. The control function execution unit controls the disconnection of the separate switch to implement the operation of cutting off the power drive circuit of the drum body.

[0080] In this embodiment, by sending the first control signal to the terminal device, the terminal device further judges based on the sent information, for example, the terminal device holder can go to the drum washing machine to check the situation and judge whether the power supply needs to be cut off, or the terminal device holder determines that the judgment is wrong according to the situation at home, and then send or not send the instruction to cut off the power drive circuit of the drum body and lock the drum body to the control function execution unit of the drum washing machine. In this way, the judgment result is actually sent to the user terminal device in the first time, which can play the role of notifying the user, and can also be further judged by the user to increase the accuracy of the judgment.

[0081] The user's terminal device sends an instruction to the control function execution unit of the washing machine to cut off the power drive circuit of the drum and lock the drum. The instruction can be sent through a touch screen or a button, and of course, the control instruction can also be sent by voice. When the control device 12 is set in the user's terminal device, the terminal device can send a reminder message, such as an audible and visual alarm signal, after receiving the first control signal. If it is determined that the terminal device has no operation within a preset time, the alarm volume is increased, or the notification mode of the terminal device is adjusted to vibration to prevent the user from being away from the terminal device or in a noisy environment and unable to hear clearly.

[0082] In another embodiment of the present disclosure, when the control device 12 is set in the drum washing machine body, the control device 12 controls to cut off the power drive circuit of the drum body according to the first control signal, and after locking the drum body, the processing module 112 sends the reminder information and the video image inside the drum body to the user terminal device through the communication module 113. After receiving the reminder information, the terminal device emits an alarm sound to remind the user to view the corresponding video image through the terminal device. If it is found to be a false alarm, the response information is sent to the control device 12 through the user terminal device. The control device 12 controls the safety device to restore normal state, restores the drum motor power circuit path, and cancels the locking device so that the drum can rotate normally; if the user confirms that it is a dangerous state, the confirmation information is sent to the control device 12 through the mobile terminal. The control device 12 maintains the locked and non-rotating state of the drum and cuts off all power supplies of the drum washing machine to ensure that no safety accidents occur to children. The reminder information is used for alarm prompts, and may also include voice information, text information, etc.

[0083] In the above-mentioned embodiment of the present disclosure, the control device 12 first executes control to cut off the power drive circuit of the drum according to the first control signal, and performs safety operations on the drum after locking the drum, and then sends the reminder information to the user terminal device, and the user determines whether it is a false alarm. On the premise of giving priority to executing the safety control function and ensuring the safety of life, the information is sent to the user terminal device to determine whether it is a wrong operation. On the one hand, it ensures the safety of the use of the drum washing machine, and on the other hand, it can also increase the accuracy of the judgment, thereby improving the safety of the system use.

[0084] Reference Figure 2 , which is a schematic diagram of the locking device structure of an embodiment of the present disclosure. In this embodiment, the drum is locked by starting the locking device 20. The structure of the locking device 20 is described in detail below. The locking device 20 includes a locking pin 201, an actuator (not shown) for driving the locking pin 201, and a slot 202. The slot 202 is arranged outside the drum 203, and the locking pin 201 is arranged on the inner wall of the drum washing machine shell (not shown). When the drum 203 needs to be locked, the actuator will push the locking pin 201 into the slot 202 to lock the drum 203.

[0085] In this embodiment, the locking pin 201 is configured as a triangle, because the cylinder is usually free to rotate, and the triangle can be inserted more easily without the need for precise alignment with the slot 202. Figure 2Only one locking pin 201 is shown in the figure. In another specific application scenario of the present application, there are four locking pins 201, which are symmetrically arranged vertically and horizontally to lock the drum 203 without shaking. The locking device 20 disclosed in this embodiment can ensure that the drum does not rotate when there is a living organism inside it, avoid possible damage to the living organism, and enhance the safety of the drum washing machine.

[0086] In this embodiment, the drum 203 is locked and the power is cut off because in the case of power failure, the drum 203 of the current washing machine can generally rotate freely. If a child gets into the drum 203, the drum 203 will rotate and injure the child. Locking the drum 203 can prevent the drum 203 from rotating due to improper force by the child, causing neck, arm or leg sprains. At the same time, the drum 203 is generally made of metal material, and cutting off the power of the drum 203 can ensure that the child does not get an electric shock. In addition, this embodiment ensures the safety of the person who contacts the drum 203 by cutting off the power of the drum, without any impact on other parts of the drum washing machine. For special needs, such as the display panel of the drum washing machine needs to be continuously charged, only the power of the drum is cut off, which can ensure the safety of the person who contacts the drum without affecting the use functions of other parts of the drum washing machine, meet the various needs of users, and enhance user experience.

[0087] In this embodiment, the communication module 113 of the safety device is used to interact with the control device 12. In this embodiment, the communication module 113 is used to send a first control signal to the control device 12. Of course, the communication module 113 can also send or receive other signals as needed, which is not limited in this embodiment of the disclosure.

[0088] In the embodiment of the present disclosure, when the cylinder is in a locked and non-rotating state, the space information acquisition module 10 is further used to acquire the second internal space information of the cylinder;

[0089] The processing module 112 is further configured to generate a second control signal after sending the first control signal if it is determined according to the information of the second internal space of the cylinder that no object has entered;

[0090] The communication module 113 is further used to send a second control signal to the control device;

[0091] The control device 12 is also used to receive the second control signal and perform a reset operation according to the second control signal to restore the power drive circuit of the cylinder and unlock the cylinder.

[0092] In one embodiment of the present disclosure, the spatial information acquisition module 10 is also used to continuously acquire the second internal space information of the drum at a predetermined interval after the processing module 112 generates the first control signal; the processing module 112 is also used to determine whether a life form enters according to the acquired second internal space information of the drum after generating the first control signal; if it is determined that no object enters according to the second internal space information of the drum, it proves that the life form may have left the drum on its own and the dangerous situation has been eliminated, and the processing module 112 generates a second control signal at this time; the second control signal is sent to the control device 12 through the communication module 113; the control device 12 is also used to receive the second control signal, and perform a reset operation according to the second control signal, restore the power drive circuit of the drum, and unlock the drum. When it is determined that there is no life form in the drum and the actual danger no longer exists, the second control signal is sent to the control device 12, and the control device 12 performs a reset operation, so that the power supply of the drum of the drum washing machine can be restored, and the drum lock can be unlocked, so that the drum can be restored to a normal working standby state, meeting the application requirements.

[0093] In another application scenario of the present disclosure, in order to further improve the accuracy of control, another embodiment is provided. In this embodiment, the communication module 113 is also used to send the first image information including the first internal space information of the cylinder to the control device 12;

[0094] The control device 12 is further used to control cutting off the power drive circuit of the cylinder according to the first image information and locking the cylinder.

[0095] In this embodiment, the processing module 112 determines that the object is a living being based on the object information returned by the first detection module and the second detection module, and generates a first control signal. The communication module 113 sends the first control signal to the control device 12, and also sends the first image information including the first internal space information of the drum to the control device 12. The first image information including the first internal space information of the drum can be obtained through the first detection module 110, or obtained through the second detection module 111, or can be obtained by setting other devices. In this way, while sending the first control signal, the first image information is used as a control reference, so that the control device 12 can better understand the current internal space situation of the drum. For example, when the control device 12 is set on the washing machine body, the control device 12 can control the display of the first image on the interface such as the display screen. When the control device 12 is set on the user's mobile terminal, it can be directly displayed on the terminal display screen for user viewing. This provides more information about the internal space of the drum for the user's reference, further improving the accuracy of control. Especially when the user is far away from the drum washing machine and it is not convenient to check the internal condition of the drum immediately, it can be determined whether the corresponding control operation needs to be performed based on the relevant image information, thereby enhancing the accuracy of the judgment, meeting the user's various needs, and enhancing the user's experience.

[0096] Similarly, the communication module 113 is also used to send the second image information including the second internal space information of the cylinder to the control device 12;

[0097] The control device 12 is further used to restore the power drive circuit of the cylinder and unlock the cylinder when it is determined that a reset operation needs to be performed based on the second image information.

[0098] The second image information may be obtained through the first detection module 110, or may be obtained through the second detection module 111, or may be obtained by setting up other devices. In this way, while sending the second control signal, the second image information is used as a control reference, so that the control device can better understand the current internal space conditions of the drum. For example, when the control device is set on the washing machine body, the control device can control the display of the second image on an interface such as a display screen. When the control device 12 is set on the user's mobile terminal, it can be directly displayed on the terminal display screen for user viewing. This provides more internal space information of the drum for user reference, especially when the user is far away from the drum washing machine and it is not convenient to immediately check the internal conditions of the drum, it can be determined whether it is necessary to perform corresponding control operations based on the relevant image information, including restoring the power drive circuit of the drum and unlocking the drum.

[0099] Reference Figure 3, which is a schematic diagram of the structure of a safety device according to an embodiment of the present disclosure. In the embodiment of the present disclosure, in order to set each module of the safety device 11 as an integrated structure, the safety device 11 further includes a housing 30 and a bottom plate 31 which are sealed and connected. The safety device 11 is arranged in a containing space formed by the housing 30 and the bottom plate 31 which are sealed and connected.

[0100] The safety device 11 is connected to the inside of the cylinder through the bottom plate 31; when the first detection module or the second detection module is a camera device, the housing 30 includes at least one transparent portion, and the camera device is arranged opposite to the transparent portion to collect the image of the inside of the cylinder through the transparent portion. In a specific embodiment of the present disclosure, the camera device is a fisheye camera, which can capture images at a wider angle.

[0101] like Figure 3 As shown, asymmetric clamping devices 32 are provided at both ends of the bottom plate 31 of the safety device 11, which are used to clamp the bottom plate 31 to the inner wall of the cylinder. In this embodiment, the safety device 11 is detachable relative to the cylinder. When the safety device is damaged, it can be directly removed and replaced through the clamping device 32, which is convenient for maintenance and saves maintenance costs. Users can even directly purchase accessories for replacement.

[0102] Reference Figure 4 As shown, it is a schematic diagram of the functional modules of a safety device of another embodiment of the present disclosure. In another embodiment of the present disclosure, a micro-vibration power generation device 114 and an energy storage device 115 are also provided on the bottom plate of the safety device 11. The processing module 112 is also used to control the micro-vibration power generation device 114 to generate electricity during the vibration process following the rotation of the cylinder, and store the electrical energy in the energy storage device 115. The energy storage device 115 is used to power the safety device.

[0103] In this embodiment, by providing an independent power supply device for the safety device 11, the safety device 11 can also work after the drum washing machine is powered off, and has the function of obtaining the internal space information of the drum in real time without being affected by the power supply conditions of other components.

[0104] In this embodiment, a speed sensor 116 is further provided on the bottom plate of the safety device 11. In this embodiment, the speed sensor 116 is a gyroscope, which is used to detect the rotation speed of the cylinder. When the rotation speed of the cylinder exceeds a predetermined value, the micro-vibration power generation device 114 is prohibited from working, thereby ensuring the safety of the use of the micro-vibration power generation device 114; because the micro-vibration power generation device 114 has its working frequency, when the frequency of triggering its vibration is high, the micro-vibration generator is easily damaged.

[0105] In another embodiment of the present disclosure, a charging receiving coil 117 is further provided on the bottom plate of the safety device 11 .

[0106] Reference Figure 5 , which is a schematic diagram of the structure of a wireless charging coil according to an embodiment of the present disclosure, a wireless charging coil 501 is arranged outside the cylinder 203, and the control device 12 ( Figure 1 ) is also used to control the charging of the charging receiving coil 117 through the wireless charging coil 501, and store the electric energy in the energy storage device 115 ( Figure 4 as shown).

[0107] Combined with this Figure 1 , Figure 4 and Figure 5 The working process of the wireless charging coil is described. When the power of the energy storage device 115 is low, the processing module 112 sends a charging request to the control device 12 through the communication module 113. The control device 12 cyclically charges through the N wireless charging coils 501 distributed on the inner wall 503 of the drum washing machine shell 502 in sequence, determines the matching charging angle, and then selects the wireless charging coil 501 that meets the matching charging angle to charge the charging receiving coil 117 included in the safety device 11 connected to the inside of the drum 203 until it is charged to the ideal state capacity. In this embodiment, the value range of N is 1-10, and 8 wireless charging coils are preferred. Because the stationary position of the washing machine drum is uncertain, and wireless charging requires two corresponding coils, the better the alignment, the higher the charging efficiency. Therefore, it is necessary to select a wireless charging coil with a matching charging angle for charging, and the present invention can find a matching charging angle by cyclically charging in sequence.

[0108] In the embodiment of the present disclosure, the reason why a micro vibration power generation device or a wireless charging device is provided on the drum is that there will be a lot of water inside the drum when it is working. If the power is supplied by wire, it is difficult to waterproof and it is easy to cause circuit failure. Therefore, the use of a micro vibration generator to generate power or charging through a wireless charging device can effectively prevent the short circuit problem caused by water penetration. By providing a micro vibration generator or a wireless charging device, power can be supplied to the safety device and the purpose of sealing and waterproofing can be achieved.

[0109] In another embodiment of the present disclosure, the safety device may further include: an alarm module, configured to provide alarm information to alert the living being.

[0110] Specifically, a sound alarm, a light alarm, a sound and light alarm, etc. can be used, as long as the alarm module can sound an alarm under the control of the processing module 112. For example, a buzzer can sound a set regular beep, an indicator light on a safety device can flash a set regular signal to remind the child, or a voice broadcast can be used to remind the child in the form of voice, informing the child that the situation is dangerous and he needs to leave as soon as possible.

[0111] The above embodiment of the present disclosure provides a control system for a drum washing machine. After determining that an object has entered the drum space, a preliminary life detection is first performed, that is, a life detection method is first used to determine whether the object includes a life. When the preliminary judgment confirms the existence of a life, another life detection method is performed, thereby improving the accuracy of the judgment through a two-step judgment method, and improving the accuracy of the control system. In the embodiment of the present disclosure, the modules included in the safety device are independently integrated. Through the independently set safety device, the internal information of the drum can be obtained according to the application needs, and it can be determined whether a life has entered, and a first control signal can be sent to the control device. By executing the corresponding safety operation, the safety of the life can be ensured, and the control device of the embodiment of the present disclosure can be set in the user terminal device, which can further realize the remote control of the drum washing machine, and can also send the internal image information of the drum to the user terminal device to provide a reference for the internal situation of the drum, which further enhances the accuracy of the judgment.

[0112] The control method of the drum washing machine provided by the embodiment of the present disclosure will be described in detail below.

[0113] Reference Figure 6 The figure is a flow chart of a control method for a drum washing machine provided by an embodiment of the present disclosure. The control method for a drum washing machine provided by this embodiment uses a control system to control the drum body included in the drum washing machine. The control system includes a spatial information acquisition module, a safety device and a control device. The method includes the following steps:

[0114] Step 601, obtaining the internal space information of the cylinder;

[0115] Step 602, if it is determined that an object has entered according to the internal space information of the cylinder, the first detection module is activated;

[0116] Step 603: if the object is determined to be a living being according to the object information returned by the first detection module, the second detection module is started;

[0117] Step 604: If the object is determined to be a living being according to the object information returned by the second detection module, a first control signal is sent to the control device;

[0118] Step 605: the control device controls to cut off the power drive circuit of the cylinder according to the first control signal, and locks the cylinder.

[0119] The disclosed embodiment activates the safety device after determining that an object has entered the drum space, so that the safety device can avoid long-term operation, reduce hardware loss, and save energy. After the safety device is activated, the disclosed embodiment first performs a preliminary life detection, that is, first determines whether the object includes a life through a life detection method. When the preliminary judgment confirms the existence of a life, another life detection method is executed. Thus, through a two-step judgment method, the disadvantage of a single life detection method that may cause misjudgment is avoided, the accuracy of the judgment is improved, and the accuracy of the control system is improved. In the disclosed embodiment, a first control signal is sent to the control device, and the power drive circuit of the drum is cut off according to the first control signal to prevent the safety hazard caused by the drum continuing to be energized. By locking the drum, sprains caused by children's improper force causing the drum to rotate can be avoided. The disclosed embodiment enhances the safety of the drum washing machine.

[0120] In another embodiment of the present disclosure, the method further includes:

[0121] Acquiring information of the second inner space of the cylinder;

[0122] After sending the first control signal, if it is determined according to the information of the second internal space of the cylinder that no object has entered, sending a second control signal to the control device;

[0123] The control device receives the second control signal and performs a reset operation according to the second control signal to restore the power drive circuit of the cylinder and unlock the cylinder.

[0124] When it is determined that there is no living thing in the drum and the real danger no longer exists, a second control signal is sent to the control device 12, which performs a reset operation, thereby restoring the power supply to the drum of the drum washing machine and releasing the drum lock, so that the drum returns to normal working standby state, meeting application requirements.

[0125] In another embodiment of the present disclosure, the method further includes:

[0126] Acquire first image information including first internal space information of the cylinder;

[0127] sending the first image information to the control device;

[0128] The control device controls to cut off the power drive circuit of the cylinder according to the first image information, and locks the cylinder; and / or,

[0129] Acquire second image information including second internal space information of the cylinder;

[0130] sending the second image information to the control device;

[0131] When the control device determines that a reset operation needs to be performed based on the second image information, it restores the power drive circuit of the cylinder and unlocks the cylinder.

[0132] This provides more information about the internal space of the drum for the user's reference, further improving the accuracy of control. Especially when the user is far away from the drum washing machine and it is not convenient to check the internal condition of the drum immediately, it can be determined whether the corresponding control operation needs to be performed based on the relevant image information, thereby enhancing the accuracy of the judgment, meeting the user's various needs, and enhancing the user's experience.

[0133] In another embodiment of the present disclosure, the method further includes:

[0134] By providing a micro-vibration power generation device and an energy storage device, the micro-vibration power generation device is controlled to generate electricity during the vibration process of following the rotation of the cylinder, and the electric energy is stored in the energy storage device, and the energy storage device is used to power the safety device; or,

[0135] By setting a shell outside the safety device, setting a charging receiving coil and an energy storage device inside the shell, and setting a wireless charging coil outside the cylinder, the charging receiving coil is controlled to be charged through the wireless charging coil, and the electric energy is stored in the energy storage device, and the energy storage device is used to power the safety device.

[0136] In the embodiments of the present disclosure, a micro-vibration power generation device and / or a wireless charging device is provided on the drum because there will be a lot of water inside the drum when it is working. If the power is supplied by wire, waterproofing will be quite difficult and it is also easy to cause circuit failure. Therefore, using a micro-vibration generator to generate electricity or charging through a wireless charging device can effectively prevent the short circuit problem caused by water seepage.

[0137] Reference Figure 7 FIG. 1 is a flow chart of a wireless charging method according to an embodiment of the present disclosure. In this embodiment, the flow of the wireless charging method is described in detail. The wireless charging method includes:

[0138] Step 701, selecting any wireless charging coil as a charging receiving coil for charging;

[0139] Specifically, any one of the N wireless charging coils is selected as the charging receiving coil for charging. In a specific application scenario, the control device 12 selects any one of the 8 wireless charging coils as the charging receiving coil for charging;

[0140] The charging time is 1 unit time. In practical applications, the length of a unit time can be set as needed, such as 10 microseconds, 100 microseconds, 1 second, 2 seconds, 3 seconds, etc., so that the processing module 112 can stably detect the electric energy received by the charging receiving coil 117 per unit time;

[0141] Step 701, measuring and recording the electric energy received per unit time and the corresponding wireless charging coil number;

[0142] In this embodiment, by evaluating the charging capabilities of the wireless charging coils one by one, the wireless charging coil that matches the charging receiving coil can be determined.

[0143] The processing module 112 controls the charging receiving coil 117 to receive electric energy, and at the same time, the processing module 112 measures and records the electric energy received per unit time and the corresponding wireless charging coil number; after a unit time, the control device 12 turns off the first wireless charging coil and takes the first wireless charging coil as the starting point, and selects the second, third to eighth wireless charging coils clockwise to charge per unit time in sequence, and the processing module 112 records the electric energy received by the charging receiving coil 117 per unit time and the corresponding wireless charging coil number when the second, third to eighth wireless charging coils are charged.

[0144] Step 703, selecting the wireless charging coil with the most charging energy per unit time, and charging the charging receiving coil until the energy storage device reaches the ideal state capacity.

[0145] The processing module 112 selects the wireless charging coil X that charges the most electrical energy per unit time, and sends its number X to the control device 12. The control device 12 controls the wireless charging coil X to charge the safety device 20 until the electrical energy of the energy storage device 115 reaches the ideal state capacity. The value of X is an integer from 1 to 8. Further, the energy storage device 115 is a ternary lithium battery, and the ideal state capacity is charged to 90% or 100%; since the ternary lithium battery has a number of charging cycles, when the charging power does not reach 100%, such as 90%, the damage to the battery is small, and the battery life can be extended. However, the ternary lithium battery also needs to be fully charged to 100% once within a certain period of time, so as to maintain the stability of the battery. Therefore, in order to maximize the service life of the battery, the ideal state capacity is set to: 90% each time, and 100% once every month.

[0146] Because the stationary position of the washing machine drum is uncertain, and wireless charging requires two coils to correspond, the better the alignment, the higher the charging efficiency, so in this embodiment, charging is performed by selecting a wireless charging coil that matches the charging angle, and the matching charging angle can be found by charging in a sequential cycle. The disclosed embodiment can achieve better charging efficiency.

[0147] The control method of the drum washing machine provided in the embodiment of the present disclosure is described above. The control method adopts the above-mentioned control system to control the drum washing machine. Therefore, the description of other aspects of the control method in the present disclosure can refer to the corresponding description of the control system and will not be repeated here.

[0148] In a specific implementation, the present disclosure further provides a computer storage medium. The computer readable medium may be included in the apparatus, device, or system of the present invention, or may exist independently.

[0149] Among them, computer-readable storage media can be any tangible media that contains or stores a program, which can be an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment. More specific examples include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, an optical fiber, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0150] The computer-readable storage medium may also include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code, specific examples of which include but are not limited to electromagnetic signals, optical signals, or any suitable combination thereof.

[0151] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A control system for a drum washing machine, used to control a drum body of the drum washing machine, characterized in that: The control system includes a spatial information acquisition module, a safety device and a control device. The space information acquisition module is used to acquire the first internal space information of the cylinder; The safety device comprises: A first detection module, used to detect information of objects inside the cylinder; A second detection module is used to further detect information of objects inside the cylinder; a processing module, configured to start the first detection module if it is determined that an object has entered according to the information of the first internal space of the cylinder; start the second detection module if it is determined that the object is a living being according to the object information returned by the first detection module; and generate a first control signal when it is determined that the object is a living being according to the object information returned by the second detection module; a communication module, configured to send the first control signal to the control device; The control device is used to control the cutting off of the power drive circuit of the cylinder and lock the cylinder according to the first control signal; The safety device further comprises a housing and a bottom plate which are sealed together, and the safety device is arranged in a containing space formed by the housing and the bottom plate which are sealed together; The safety device is connected to the inside of the cylinder through the bottom plate; and / or the shell includes at least one transparent portion, and the transparent portion is used for the first detection module or the second detection module to collect the image of the inside of the cylinder through the transparent portion; A micro-vibration power generation device and an energy storage device are also provided on the bottom plate, and the processing module is further used to control the micro-vibration power generation device to generate electricity during the vibration process following the rotation of the cylinder, and store the electric energy in the energy storage device, and the energy storage device is used to power the safety device; or, A charging receiving coil and an energy storage device are also provided on the bottom plate, a wireless charging coil is provided outside the cylinder, and the control device is also used to control the charging of the charging receiving coil through the wireless charging coil and store the electrical energy in the energy storage device, and the energy storage device is used to power the safety device.

2. The system according to claim 1, characterized in that The spatial information acquisition module includes a camera or a pressure sensor or an ultrasonic level meter; the first detection module is a life detection device, including a temperature sensor or a camera; the second detection module is a life detection device of a different type from the first detection module, including a temperature sensor or a camera.

3. The system according to claim 1, characterized in that The space information acquisition module is also used to acquire the second internal space information of the cylinder; The processing module is further configured to generate a second control signal after generating the first control signal if it is determined according to the information of the second internal space of the cylinder that no object has entered; The communication module is further used to send the second control signal to the control device; The control device is also used to receive the second control signal and perform a reset operation according to the second control signal to restore the power drive circuit of the cylinder and unlock the cylinder.

4. The system according to claim 3, characterized in that The communication module is further used to send the first image information including the first internal space information of the cylinder to the control device; The control device is further used to control the cutting off of the power drive circuit of the cylinder and locking the cylinder according to the first image information; and / or, The communication module is further used to send the second image information including the second internal space information of the cylinder to the control device; The control device is also used to restore the power drive circuit of the cylinder and unlock the cylinder when it is determined that a reset operation needs to be performed based on the second image information.

5. A control method for a drum washing machine, applied to a control system of a drum washing machine as claimed in any one of claims 1 to 4, the method comprising: Acquiring the internal space information of the cylinder; If it is determined according to the internal space information of the cylinder that an object has entered, the first detection module is activated; If the object is determined to be a living being according to the object information returned by the first detection module, the second detection module is activated; If the object is determined to be a living being according to the object information returned by the second detection module, a first control signal is sent to the control device; The control device controls to cut off the power drive circuit of the cylinder according to the first control signal and locks the cylinder.

6. The method according to claim 5, characterized in that After sending the first control signal to the control device, the method further includes: Acquiring information of the second inner space of the cylinder; If it is determined according to the information of the second internal space of the cylinder that no object has entered, a second control signal is sent to the control device; The control device receives the second control signal and performs a reset operation according to the second control signal to restore the power drive circuit of the cylinder and unlock the cylinder.

7. The method according to claim 6, characterized in that The method further comprises: Acquire first image information including first internal space information of the cylinder; sending the first image information to the control device; The control device controls to cut off the power drive circuit of the cylinder according to the first image information, and locks the cylinder; and / or, Acquire second image information including second internal space information of the cylinder; sending the second image information to the control device; When the control device determines that a reset operation needs to be performed based on the second image information, it restores the power drive circuit of the cylinder and unlocks the cylinder.

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