Detection circuit and detection method for cleaning brushes in cleaning devices

Abstract

The present specification provides a detection circuit and a detection method for a cleaning brush in a cleaning device, wherein the detection circuit for the cleaning brush in the cleaning device comprises: a cleaning brush driving unit, a cleaning brush mounting unit and a cleaning brush detection unit; the cleaning brush driving unit is used to drive the cleaning brush mounting unit; the cleaning brush mounting unit is used to connect the cleaning brush driving unit and output a first voltage signal when being driven by the cleaning brush driving unit; and the cleaning brush detection unit is used to acquire the first voltage signal output by the cleaning brush mounting unit, determine whether the cleaning brush mounting unit is mounted with a cleaning brush and the type of the mounted cleaning brush according to the first voltage signal. In this way, the cleaning device can determine whether the cleaning brush is mounted and the type of the cleaning brush before starting to work, so that the cleaning device can start to work after the cleaning brush is mounted, liquid splashing is avoided, one cleaning device can be compatible with multiple types of cleaning brushes at the same time, the compatibility is high, and the user is convenient to use.

Description

Technical Field

[0001] This specification relates to the field of smart home technology, and in particular to a detection circuit for a cleaning brush in a cleaning device. This specification also relates to a method for detecting a cleaning brush in a cleaning device, a computing device, and a computer-readable storage medium. Background Technology

[0002] With the rapid development of computer technology, internet technology, and artificial intelligence technology, various smart home devices are gradually being applied to all aspects of work and life. For example, after years of development, cleaning equipment has shown a trend of automation, functionality, diversification, and specialization, and has been widely used in people's daily lives. People can use cleaning equipment to complete corresponding cleaning tasks, such as floor cleaning machines and fabric cleaning machines.

[0003] Fabric cleaning machines are generally used to clean fabric sofas, curtains, and other textile products. They work by spraying water or cleaning solution onto the soiled surface, then using a handheld cleaning brush to clean the soiled area, and finally sucking the cleaned wastewater into a tank through a suction nozzle. This allows for targeted cleaning of the fabric and is quite convenient to use. Unlike traditional floor cleaning machines, fabric cleaning machines are handheld. When the cleaning brush is not installed, the water pump should be turned off to prevent liquid splashing. Fabric cleaning machines also come with different types of cleaning brushes, each with its own operating mode.

[0004] In existing technologies, users can install or replace the cleaning brush before powering on. After powering on, the cleaning device starts working by default. If the cleaning brush is not installed properly at this time, it will cause liquid splashing, affecting the user experience. Furthermore, different types of cleaning brushes correspond to different working modes, and a cleaning device can only be compatible with one type of cleaning brush, resulting in poor compatibility. Summary of the Invention

[0005] In view of this, embodiments of this specification provide a detection circuit for a cleaning brush in a cleaning device. This specification also relates to a method for detecting a cleaning brush in a cleaning device, a computing device, and a computer-readable storage medium, to address the technical deficiencies existing in the prior art.

[0006] According to a first aspect of the embodiments of this specification, a detection circuit for a cleaning brush in a cleaning device is provided, the cleaning brush detection circuit including a cleaning brush driving unit, a cleaning brush mounting unit and a cleaning brush detection unit;

[0007] The cleaning brush drive unit is used to drive the cleaning brush mounting unit;

[0008] The cleaning brush mounting unit is used to connect to the cleaning brush driving unit and outputs a first voltage signal when driven by the cleaning brush driving unit.

[0009] The cleaning brush detection unit is used to acquire a first voltage signal output by the cleaning brush installation unit, and determine whether a cleaning brush is installed in the cleaning brush installation unit and the type of cleaning brush installed based on the first voltage signal.

[0010] According to a second aspect of the embodiments of this specification, a method for detecting a cleaning brush in a cleaning device is provided, applied to a cleaning brush detection unit in a cleaning brush detection circuit, the method comprising:

[0011] Acquire a first voltage signal output by the cleaning brush mounting unit, wherein the first voltage signal is output when the cleaning brush mounting unit is driven by the cleaning brush driving unit;

[0012] Based on the first voltage signal, determine whether a cleaning brush is installed in the cleaning brush installation unit, and the type of cleaning brush installed.

[0013] According to a third aspect of the embodiments of this specification, a computing device is provided, comprising:

[0014] Memory and processor;

[0015] The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions to implement the following method:

[0016] Acquire a first voltage signal output by the cleaning brush mounting unit, wherein the first voltage signal is output when the cleaning brush mounting unit is driven by the cleaning brush driving unit;

[0017] Based on the first voltage signal, determine whether a cleaning brush is installed in the cleaning brush installation unit, and the type of cleaning brush installed.

[0018] According to a fourth aspect of the embodiments of this specification, a computer-readable storage medium is provided that stores computer-executable instructions, which, when executed by a processor, implement the steps of the detection method for the cleaning brush in the cleaning device.

[0019] This specification provides a detection circuit for a cleaning brush in a cleaning device. The cleaning brush detection circuit includes a cleaning brush driving unit, a cleaning brush mounting unit, and a cleaning brush detection unit. The cleaning brush driving unit drives the cleaning brush mounting unit. The cleaning brush mounting unit is connected to the cleaning brush driving unit and outputs a first voltage signal when driven by the cleaning brush driving unit. The cleaning brush detection unit acquires the first voltage signal output by the cleaning brush mounting unit and determines whether a cleaning brush is installed in the cleaning brush mounting unit and the type of cleaning brush installed based on the first voltage signal.

[0020] In this configuration, the cleaning brush drive unit can drive the cleaning brush mounting unit. When driven, the cleaning brush mounting unit outputs a first voltage signal, indicating whether a cleaning brush is installed and its type. The cleaning brush detection unit can then acquire and analyze this first voltage signal to determine whether a cleaning brush is installed and its type. Thus, before starting operation, the cleaning equipment can determine if a cleaning brush is installed, allowing it to begin operation only after installation, preventing liquid splashing and improving user experience. Furthermore, the cleaning brush detection unit can detect not only the presence of a cleaning brush but also its type, enabling the activation of the corresponding operating mode based on the installed brush type. This allows the cleaning equipment to be compatible with multiple types of cleaning brushes, offering high compatibility and ease of use. Attached Figure Description

[0021] Figure 1 This is a structural block diagram of a detection circuit for a cleaning brush in a cleaning device according to an embodiment of this specification;

[0022] Figure 2a This is a schematic diagram of the structure of a fabric cleaning machine provided in one embodiment of this specification;

[0023] Figure 2b This is a circuit diagram of a cleaning brush mounting unit provided in one embodiment of this specification;

[0024] Figure 2c This is a circuit diagram of a cleaning brush driving unit provided in one embodiment of this specification;

[0025] Figure 2d This is a circuit diagram of another cleaning brush mounting unit provided in one embodiment of this specification;

[0026] Figure 3 This is a flowchart illustrating a method for detecting a cleaning brush in a cleaning device, as provided in one embodiment of this specification.

[0027] Figure 4 This is a schematic diagram of the structure of a cleaning brush detection unit provided in one embodiment of this specification;

[0028] Figure 5 This is a structural block diagram of a computing device provided in one embodiment of this specification. Detailed Implementation

[0029] Many specific details are set forth in the following description to provide a full understanding of this specification. However, this specification can be implemented in many other ways than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this specification. Therefore, this specification is not limited to the specific implementations disclosed below.

[0030] The terminology used in one or more embodiments of this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the one or more embodiments of this specification. The singular forms “a,” “described,” and “the” as used in one or more embodiments of this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.

[0031] It should be understood that although the terms first, second, etc., may be used to describe various information in one or more embodiments of this specification, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first may also be referred to as second without departing from the scope of one or more embodiments of this specification, and similarly, second may also be referred to as first. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0032] This specification provides a detection circuit for a cleaning brush in a cleaning device, and also relates to a method for detecting a cleaning brush in a cleaning device, a computing device, and a computer-readable storage medium, which will be described in detail in the following embodiments.

[0033] Figure 1 A structural block diagram of a detection circuit for a cleaning brush in a cleaning device according to an embodiment of this specification is shown, such as... Figure 1 As shown, the cleaning brush detection circuit includes a cleaning brush driving unit 102, a cleaning brush mounting unit 104, and a cleaning brush detection unit 106.

[0034] The cleaning brush driving unit 102 is used to drive the cleaning brush mounting unit 104;

[0035] The cleaning brush mounting unit 104 is used to connect to the cleaning brush driving unit 102, and outputs a first voltage signal when driven by the cleaning brush driving unit 102.

[0036] The cleaning brush detection unit 106 is used to acquire the first voltage signal output by the cleaning brush installation unit 104, and determine whether a cleaning brush is installed in the cleaning brush installation unit 104 and the type of cleaning brush installed based on the first voltage signal.

[0037] Specifically, cleaning equipment can refer to intelligent devices that perform cleaning operations using cleaning brushes. This equipment can detect whether the cleaning brushes are installed before starting work. A cleaning brush is the component on the cleaning equipment that performs the cleaning. For example, the cleaning equipment could be a fabric cleaning machine, and the cleaning brush is a handheld brush head installed on the machine to remove dirt from fabrics. There are many types of cleaning brushes, such as flat brushes and motorized brushes. Flat brushes do not have a built-in motor; the brush is flat or roller-shaped, and the user brushes it onto the fabric to clean it. Motorized brushes have a built-in motor that drives the roller brush to rotate, achieving fabric cleaning. Of course, in practical applications, cleaning equipment can also refer to other devices that require checking whether the cleaning brushes are installed before starting work.

[0038] For example, taking a fabric cleaning machine as an example, the cleaning brush detection circuit can be installed on the body of the cleaning equipment. Figure 2a A schematic diagram of a fabric cleaning machine according to an embodiment of this specification is shown, such as... Figure 2a As shown, the fabric cleaning machine includes a cleaning brush 1, which can be of different types, such as an electric brush or a board brush; a clean water tank 2; a wastewater tank 3; a clean water pipe 4, which is wrapped inside the wastewater pipe to transport water from the clean water tank to the cleaning brush; a wastewater pipe 5, through which dirty wastewater on the cleaning brush is sucked into the wastewater tank; and a wiring pipe 6, which supplies power to the roller brush and controls its movement.

[0039] It should be noted that the cleaning brush drive unit can supply power to the cleaning brush mounting unit to drive the cleaning brush mounting unit. The cleaning brush mounting unit is used to install cleaning brushes. After the cleaning brush mounting unit is powered on, whether a cleaning brush is installed in it and the type of cleaning brush installed will affect the output voltage of the cleaning brush mounting unit. Therefore, the cleaning brush detection unit can obtain the first voltage signal, analyze the first voltage signal to determine whether a cleaning brush is currently installed in the cleaning brush mounting unit, and if so, what type of cleaning brush is installed.

[0040] In the embodiments of this specification, the cleaning device can determine whether a cleaning brush is installed before starting work, so that it can start working only after the cleaning brush is installed, avoiding liquid splashing and improving the user experience. In addition, the cleaning brush detection unit can not only detect whether a cleaning brush is installed, but also detect the type of the installed cleaning brush, so that the corresponding working mode can be started according to the type of installed cleaning brush. One cleaning device can be compatible with multiple types of cleaning brushes at the same time, with high compatibility and convenient use by users.

[0041] In one optional embodiment of this example, the cleaning brush mounting unit 104 includes a single detection pin, a first driving pin, and a second driving pin. The first driving pin and the second driving pin are used to connect to the cleaning brush driving unit 102, and the single detection pin is used to output the first voltage signal.

[0042] It should be noted that the cleaning brush mounting unit uses a three-wire interface, which is used to detect the cleaning brush. Additionally, this single detection pin can be connected to a pull-up resistor and a current-limiting circuit. The pull-up resistor is grounded. This pull-up resistor and current-limiting resistor prevent the initial output voltage signal from being too high, which could damage the cleaning brush detection unit.

[0043] Example, Figure 2b This is a circuit diagram of a cleaning brush mounting unit provided in one embodiment of this specification, as shown below. Figure 2b As shown, the cleaning brush mounting unit includes a cleaning brush mounting assembly JP5, which is provided with a single detection pin 1, a first drive pin 2, and a second drive pin 3. The single detection pin 1 is connected to a pull-up resistor R38 and a current-limiting resistor R39, and then outputs a first voltage signal through the V_S port.

[0044] In the embodiments of this specification, the cleaning brush installation unit adopts a three-wire interface scheme, which has low detection cost. It can determine whether a cleaning brush is installed and the type of cleaning brush installed before the cleaning equipment starts working. This avoids liquid splashing and can start the corresponding working mode according to the type of cleaning brush installed. One cleaning equipment can be compatible with multiple types of cleaning brushes at the same time, with high compatibility and convenient use for users.

[0045] In an optional embodiment of this invention, the cleaning brush detection unit 106 is further configured to:

[0046] If the first voltage signal is not a voltage setting value, it is determined that a cleaning brush is installed in the cleaning brush mounting unit 104, and the installed cleaning brush is a plate brush.

[0047] If the first voltage signal is a voltage setting value, it is determined that no cleaning brush is installed in the cleaning brush mounting unit 104, or an electric brush is installed.

[0048] Specifically, the voltage setting value is a preset value used to indicate whether a cleaning brush is not installed in the cleaning brush mounting unit or whether an electric brush is installed. For example, the voltage setting value can be 0.

[0049] In practical applications, when the cleaning brush is a plate brush, the plate brush needs to be connected to the first drive pin and the ground terminal. A resistor is added to the plate brush. When the cleaning brush mounting unit is driven by the cleaning brush drive unit, that is, when the cleaning brush mounting unit is powered, the first voltage signal output by the single detection pin in the cleaning brush mounting unit should have a voltage value. This voltage value is related to the resistance value on the plate brush. Therefore, if the first voltage signal is not 0, that is, a voltage value is detected, it can be determined that a cleaning brush is installed, and that the cleaning brush is a plate brush; if the first voltage signal is 0, that is, no voltage value is detected, it indicates that no cleaning brush is installed in the cleaning brush mounting unit, or that an electric brush is installed.

[0050] It should be noted that the cleaning brush detection unit can determine whether a cleaning brush is installed in the cleaning brush mounting unit and what type of cleaning brush is installed based on whether there is a voltage value in the first voltage signal output by a single detection pin in the cleaning brush mounting unit. Before the cleaning equipment starts working, it can determine whether a cleaning brush is installed and what type of cleaning brush is installed, which not only avoids liquid splashing, but also starts the corresponding working mode according to the type of cleaning brush installed. One cleaning equipment can be compatible with multiple types of cleaning brushes at the same time, with high compatibility and ease of use for users.

[0051] In one optional embodiment of this example, the cleaning brush driving unit 102 includes a power input terminal, a switch module, a switch control signal input terminal, a first connection pin, a second connection pin, and a detection signal output terminal. The first connection pin is connected to the first driving pin, and the second connection pin is connected to the second driving pin.

[0052] The switch control signal input terminal is used to input a switch control signal, which is used to control the on and off states of the switch module. The on and off states of the switch module are used to control whether power is supplied to the cleaning brush mounting unit 104. The detection signal output terminal is used to output a second voltage signal.

[0053] The cleaning brush detection unit 106 is further configured to acquire the second voltage signal output by the detection signal output terminal of the cleaning brush drive unit 102 when the first voltage signal is the voltage set value, and determine whether a cleaning brush is installed in the cleaning brush installation unit 104 and the type of cleaning brush installed based on the second voltage signal.

[0054] Specifically, the switching module is used to control whether the power input at the power input terminal is connected to the cleaning brush mounting unit. The switching module includes a first switching component, a second switching component, and a third switching component. The first and second switching components can be transistors, and the third switching component can be a MOSFET. Of course, in actual applications, the first, second, and third switching components can also be other components that include both on and off states.

[0055] In practical applications, the detection signal output terminal can be connected to the base of the first switching component to control the conduction and cutoff of the first switching component. The conduction and cutoff of the first switching component can control the conduction and cutoff of the second switching component. The conduction and cutoff of the second switching component can control the conduction and cutoff of the third switching component, thereby controlling whether the power supplied by the power input terminal can be provided to the cleaning brush mounting unit.

[0056] Example, Figure 2c This is a circuit diagram of a cleaning brush driving unit provided in one embodiment of this specification, as shown below. Figure 2c As shown, the power input terminal P+ is connected to three branches: one branch connects to filter capacitors C12 and C13, another connects to the source of MOSFET Q3 (the third switching group), and the third connects to the collector of transistor Q4 (the second switching assembly). The emitter of transistor Q4 is connected to the gate of MOSFET Q3 via resistor R16, and the base of transistor Q4 is connected to the collector of transistor Q5 (the first switching assembly) via resistor R21. Additionally, resistor R17 is connected between the collector and base of transistor Q4, and resistor R16 also connects to a Zener diode D8, the other end of which is connected to the base of transistor Q4. The emitter of transistor Q5 is grounded, and its base is connected to the switch control signal input terminal DRSM via resistor R24. Furthermore, resistor R25 is connected between the base and emitter of transistor Q5.

[0057] The drain of MOSFET Q3 has three parallel branches: filter capacitor C16, filter capacitor C17, and Zener diode D7. One end of this parallel resistor is connected to resistor AD1, which is connected to the first connection pin SM+. The first connection pin SM+ is connected to the aforementioned... Figure 2b The first drive pin 2 of the cleaning brush mounting unit is connected to the other end; the resistor AD2 is connected to the second connection pin SM-, which is connected to the aforementioned... Figure 2b The second drive pin 3 of the cleaning brush mounting unit.

[0058] In addition, this parallel circuit has two branches. One branch connects to the sampling resistor R22, the utilization resistor R23, and the filter capacitor C16 in parallel. The other branch connects to two RC filters (resistor R20, capacitor C20; resistor R21, capacitor C21), and then connects to the detection signal output terminal SMCS.

[0059] From the above Figure 2c As shown, the switch control signal input terminal DRSM can input a switch control signal to control transistor Q5 to conduct. When transistor Q5 conducts, transistor Q4 conducts, and when transistor Q4 conducts, MOSFET Q3 conducts. At this time, the power supplied by the power input terminal P+ can be supplied to the cleaning brush mounting unit through the first connection pin SM+ and the second connection pin SM-, so that the cleaning brush mounting unit is powered on and outputs a first voltage signal. Thus, by checking whether there is a voltage value in the first voltage signal output by the single detection pin of the cleaning brush mounting unit, it can be determined whether a plate brush is installed in the cleaning brush mounting unit. If no plate brush is installed, the motor current detection of the cleaning brush can be combined to determine whether an electric brush is installed. This allows for the determination of whether various types of cleaning brushes are installed, thereby activating the corresponding working mode and improving the compatibility of the cleaning equipment with different types of cleaning brushes.

[0060] In an optional embodiment of this example, the cleaning brush detection unit 106 is further configured to:

[0061] The motor current signal is determined based on the second voltage signal;

[0062] If the motor current signal is the first current setting value, then it is determined that a cleaning brush is installed in the cleaning brush mounting unit 104, and the installed cleaning brush is an electric brush.

[0063] If the motor current signal is the second current setting value, it is determined that no cleaning brush is installed in the cleaning brush mounting unit 104.

[0064] Specifically, the first current setting value and the second current setting value are preset values. The first current setting value is used to indicate that an electric brush is installed in the cleaning brush mounting unit, and the second current setting value is used to indicate that no cleaning brush is installed in the cleaning brush mounting unit. The first current setting value and the second current setting value are related to the resistance value of the sampling resistor in the cleaning brush drive unit.

[0065] It should be noted that when the cleaning brush is an electric brush, the electric brush needs to be connected to the first drive pin and the second drive pin. The cleaning brush drive unit supplies power to the cleaning brush mounting unit. After the electric brush is powered on, the corresponding current can be detected. If the electric brush is not installed in the cleaning brush mounting unit, the corresponding current value cannot be detected. That is, the first current setting value is the motor current when the electric brush starts, and the second current setting value can be 0.

[0066] In actual implementation, the detection signal output terminal of the cleaning brush drive unit can output a second voltage signal, and the cleaning brush drive unit is equipped with a sampling resistor. By dividing the voltage value in the second voltage signal by the resistance value of the sampling resistor, the motor current can be obtained. If the motor current is 0, it means that no electric brush is installed; if the motor current is the current when the electric brush starts, it means that an electric brush is installed.

[0067] Furthermore, when the electric brush is first powered on, it idles for a few revolutions before pausing to wait for it to enter the working state. The voltage at startup is relatively high, making it less susceptible to interference from other components in the cleaning brush drive unit. However, when the electric brush enters the working state, in certain operating modes, the operating voltage is very low, making it more vulnerable to interference from other components in the cleaning brush drive unit. This can lower the output second voltage signal, leading to a false positive indicating that no cleaning brush is installed. Therefore, in this embodiment, detection is performed when the electric brush is first powered on, specifically within a set time (a short, pre-set time, such as 3 seconds) after the cleaning brush drive unit is first powered on. The system determines whether the motor current at this time is the same as the current at startup, thus indicating whether an electric brush is installed.

[0068] In the embodiments of this specification, when there is no voltage value (i.e., the voltage value is 0) in the first voltage signal input to the cleaning brush installation unit, it is not directly determined that no cleaning brush is installed. Instead, the second voltage signal output by the detection signal output terminal of the cleaning brush drive unit is further obtained. Based on the second voltage signal and the resistance value of the sampling resistor, the motor current is determined. If the motor current is 0, it is determined that no cleaning brush is currently installed. If the motor current is the current when the electric brush is started, it is determined that an electric brush is currently installed. When it is determined that a cleaning brush is installed, the type of cleaning brush can also be determined at the same time. A cleaning device can be compatible with multiple types of cleaning brushes at the same time, with high compatibility and convenient use by users.

[0069] In one optional embodiment of this example, the cleaning brush mounting unit 104 includes a first detection pin and a second detection pin. The first detection pin is connected to a pull-up resistor, and the second detection pin is used to output the first voltage signal.

[0070] It should be noted that the cleaning brush mounting unit can also be a four-wire interface solution. That is, the cleaning brush mounting unit is equipped with two detection pins. The first detection pin is connected to a pull-up resistor, which is connected to the power supply of the set voltage. This adds a resistor, so even if the cleaning brush is an electric brush, it can directly determine whether it is installed and the type of cleaning brush installed through the first voltage signal output by the second detection pin. It can detect both plate brushes and electric brushes at the same time, without having to combine the second voltage signal output by the detection signal output terminal of the cleaning brush drive unit to calculate the motor current and then determine the electric brush based on the motor current. This allows for the identification of more types of cleaning brushes and is more stable.

[0071] In one optional embodiment of this example, a micro switch is connected in parallel between the first detection pin and the second detection pin. The micro switch is disposed on the electric brush. The micro switch is cut off when the electric brush is lifted and turned on when the electric brush is lowered. The first voltage signal is also used to detect the working status of the installed electric brush.

[0072] Specifically, the microswitch can be a component that can turn on or off based on the up and down state of the electric brush, such as a diode.

[0073] It should be noted that when the electric brush is lifted, if it continues to spray liquid, it will cause liquid splashing; however, when the electric brush is lowered, it will not cause liquid splashing. Therefore, not only will not installing the cleaning brush cause liquid splashing, but the state of the electric brush will also cause liquid splashing. Therefore, in order to avoid liquid splashing, you can also check the state of the electric brush when it is installed.

[0074] In practical applications, in the four-wire interface scheme, a micro switch can also be connected in parallel on the first detection pin and the second detection pin. The micro switch is set on the electric brush. The micro switch is cut off when the electric brush is lifted and turned on when the electric brush is lowered. The on and off states of the micro switch will affect the first voltage signal output by the second detection pin. Therefore, the first voltage signal is also used to detect the working status of the installed electric brush.

[0075] Additionally, the second detection pin can be connected to a pull-up resistor and a current-limiting circuit. The pull-up resistor is grounded, and this pull-up resistor and current-limiting resistor can prevent the output first voltage signal from being too large and burning out the cleaning brush detection unit. Furthermore, a filter capacitor can be connected in parallel with the pull-up resistor and current-limiting circuit to filter out noise.

[0076] Example, Figure 2d This is a circuit diagram of another cleaning brush mounting unit provided in one embodiment of this specification, as shown below. Figure 2dAs shown, the cleaning brush mounting unit includes a first detection pin 1, a second detection pin 2, a first drive pin 3, and a second drive pin 4. The first detection pin 1 is connected to a pull-up resistor R40, which is connected to a 3.3V power supply. The second detection pin 2 has three branches in parallel: one is a micro switch-diode D15, one is a pull-up resistor R38 and a current-limiting resistor R39, and one is a filter capacitor C29. Then, the first voltage signal is output through the V_S port.

[0077] In the embodiments of this specification, the cleaning brush mounting unit adopts a four-wire interface scheme, which can simultaneously detect both the plate brush and the motor brush. It is no longer necessary to combine the second voltage signal output from the detection signal output terminal in the cleaning brush drive unit to calculate the motor current and then determine the motor brush based on the motor current. This allows for the identification of more types of cleaning brushes and provides greater stability.

[0078] In an optional embodiment of this example, the cleaning brush detection unit 106 is further configured to:

[0079] If the first voltage signal is the first set value, it is determined that no cleaning brush is installed in the cleaning brush installation unit 104;

[0080] If the first voltage signal is the second set value, then it is determined that a plate brush is installed in the cleaning brush mounting unit 104;

[0081] If the first voltage signal is the third set value, it is determined that an electric brush is installed in the cleaning brush mounting unit 104 and the electric brush is in the lifted state.

[0082] If the first voltage signal is the fourth set value, it is determined that an electric brush is installed in the cleaning brush mounting unit 104 and the electric brush is in the down position.

[0083] It should be noted that in the four-wire interface scheme, if no cleaning brush is installed in the cleaning brush mounting unit, the first voltage signal output will have no voltage value, i.e., the output voltage will be 0. If a cleaning brush is installed in the cleaning brush mounting unit, different cleaning brush types and states will output corresponding voltage values. Therefore, the first voltage signal output by the cleaning brush mounting unit can be divided into four categories. The first set value, the second set value, the third set value, and the fourth set value are preset to divide the first voltage signal into four categories.

[0084] The first setting value is used to indicate that no cleaning brush is installed in the cleaning brush detection unit, such as 0; the second setting value is used to indicate that a plate brush is installed in the cleaning brush detection unit; the third setting value is used to indicate that an electric brush is installed in the cleaning brush detection unit and the electric brush is in a raised state; the fourth setting value is used to indicate that an electric brush is installed in the cleaning brush detection unit and the electric brush is in a lowered state.

[0085] In practical applications, the cleaning brush detection unit can determine whether a cleaning brush is installed, its type, and status based on the first voltage signal output by the cleaning brush mounting unit. Based on the detection results, it can execute the corresponding operating mode. A single cleaning device can be compatible with multiple types of cleaning brushes simultaneously. For example, when a plate brush is detected, the water pump is turned on to control the spraying of cleaning liquid; or, when an electric brush is detected and raised, the water pump is turned off to stop spraying cleaning liquid; or, when an electric brush is detected and lowered, the water pump is turned on to control the spraying of cleaning liquid.

[0086] This specification provides a detection circuit for a cleaning brush in a cleaning device. A cleaning brush driving unit drives a cleaning brush mounting unit. When driven, the cleaning brush mounting unit outputs a first voltage signal, indicating whether a cleaning brush is installed in the mounting unit and its type. The cleaning brush detection unit can acquire and analyze this first voltage signal to determine whether a cleaning brush is installed and its type. Thus, before starting operation, the cleaning device can determine if a cleaning brush is installed, allowing operation to begin only after the brush is installed, preventing liquid splashing and improving user experience. Furthermore, the cleaning brush detection unit can detect not only the presence of a cleaning brush but also its type, enabling the activation of the corresponding operating mode based on the type of brush installed. This allows the cleaning device to be compatible with multiple types of cleaning brushes, offering high compatibility and ease of use.

[0087] Figure 3 A flowchart illustrating a method for detecting a cleaning brush in a cleaning device according to an embodiment of this specification is shown, including a cleaning brush detection unit applied in a cleaning brush detection circuit. Figure 3 As shown, the specific steps include:

[0088] Step 302: Obtain the first voltage signal output by the cleaning brush mounting unit, wherein the first voltage signal is output when the cleaning brush mounting unit is driven by the cleaning brush driving unit.

[0089] Step 304: Based on the first voltage signal, determine whether a cleaning brush is installed in the cleaning brush installation unit, and the type of cleaning brush installed.

[0090] In one optional embodiment of this example, the cleaning brush mounting unit includes a single detection pin; determining whether a cleaning brush is installed in the cleaning brush mounting unit and the type of cleaning brush installed based on the first voltage signal includes:

[0091] If the first voltage signal is not a voltage setting value, then it is determined that a cleaning brush is installed in the cleaning brush installation unit, and the installed cleaning brush is a plate brush.

[0092] If the first voltage signal is a voltage setting value, then the second voltage signal output by the cleaning brush drive unit is obtained, and the cleaning brush installation unit is determined based on the second voltage signal to determine whether a cleaning brush is installed in the cleaning brush installation unit and the type of cleaning brush installed.

[0093] In one optional implementation of this embodiment, determining whether a cleaning brush is installed in the cleaning brush mounting unit and the type of cleaning brush installed based on the second voltage signal includes:

[0094] The motor current signal is determined based on the second voltage signal;

[0095] If the motor current signal is the first current setting value, then it is determined that a cleaning brush is installed in the cleaning brush mounting unit, and the installed cleaning brush is an electric brush.

[0096] If the motor current signal is the second current setting value, it is determined that no cleaning brush is installed in the cleaning brush mounting unit.

[0097] In one optional embodiment of this example, the cleaning brush mounting unit includes a first detection pin and a second detection pin. The first detection pin is connected to a pull-up resistor, and the second detection pin is used to output the first voltage signal.

[0098] A micro switch is connected in parallel to the first detection pin and the second detection pin. The micro switch is disposed on the electric brush. The micro switch is cut off when the electric brush is lifted and turned on when the electric brush is lowered. The first voltage signal is also used to detect the working status of the installed electric brush.

[0099] In an optional implementation of this embodiment, determining whether a cleaning brush is installed in the cleaning brush mounting unit and the type of cleaning brush installed based on the first voltage signal includes:

[0100] If the first voltage signal is the first set value, then it is determined that no cleaning brush is installed in the cleaning brush installation unit;

[0101] If the first voltage signal is the second set value, then it is determined that a plate brush is installed in the cleaning brush mounting unit;

[0102] If the first voltage signal is the third set value, then it is determined that an electric brush is installed in the cleaning brush mounting unit and the electric brush is in the raised state;

[0103] If the first voltage signal is the fourth set value, then it is determined that an electric brush is installed in the cleaning brush mounting unit and the electric brush is in the down position.

[0104] This specification provides a method for detecting cleaning brushes in a cleaning device. The cleaning brush detection circuit includes a cleaning brush driving unit, a cleaning brush mounting unit, and a cleaning brush detection unit. The cleaning brush detection unit can acquire a first voltage signal output by the cleaning brush mounting unit when it is driven by the cleaning brush driving unit, analyze the first voltage signal, and determine whether a cleaning brush is installed in the cleaning brush mounting unit and the type of cleaning brush installed. Thus, before the cleaning device starts working, it can determine whether a cleaning brush is installed, allowing it to start working only after the cleaning brush is installed, avoiding liquid splashing and improving the user experience. Furthermore, in addition to detecting whether a cleaning brush is installed, the cleaning brush detection unit can also detect the type of installed cleaning brush, thereby activating the corresponding working mode based on the type of installed cleaning brush. A single cleaning device can be compatible with multiple types of cleaning brushes, offering high compatibility and ease of use for the user.

[0105] The above is an illustrative scheme of a method for detecting a cleaning brush in a cleaning device according to this embodiment. It should be noted that the technical solution of the method for detecting a cleaning brush in this cleaning device and the technical solution of the detection circuit for a cleaning brush in the cleaning device described above belong to the same concept. For details not described in detail in the technical solution of the method for detecting a cleaning brush in the cleaning device, please refer to the description of the technical solution of the detection circuit for a cleaning brush in the cleaning device described above.

[0106] Corresponding to the above method embodiments, this specification also provides embodiments of a cleaning brush detection unit. Figure 4 A schematic diagram of a cleaning brush detection unit according to an embodiment of this specification is shown. Figure 4 As shown, the cleaning brush detection unit includes:

[0107] The acquisition module 402 is configured to acquire a first voltage signal output by the cleaning brush mounting unit, wherein the first voltage signal is output when the cleaning brush mounting unit is driven by the cleaning brush driving unit;

[0108] The determination module 404 is configured to determine, based on the first voltage signal, whether a cleaning brush is installed in the cleaning brush mounting unit, and the type of cleaning brush installed.

[0109] Optionally, the cleaning brush mounting unit includes a single detection pin; the determination module 404 is further configured to:

[0110] If the first voltage signal is not a voltage setting value, then it is determined that a cleaning brush is installed in the cleaning brush installation unit, and the installed cleaning brush is a plate brush.

[0111] If the first voltage signal is a voltage setting value, then the second voltage signal output by the cleaning brush drive unit is obtained, and the cleaning brush installation unit is determined based on the second voltage signal to determine whether a cleaning brush is installed in the cleaning brush installation unit and the type of cleaning brush installed.

[0112] Optionally, module 404 is further configured as follows:

[0113] The motor current signal is determined based on the second voltage signal;

[0114] If the motor current signal is the first current setting value, then it is determined that a cleaning brush is installed in the cleaning brush mounting unit, and the installed cleaning brush is an electric brush.

[0115] If the motor current signal is the second current setting value, it is determined that no cleaning brush is installed in the cleaning brush mounting unit.

[0116] Optionally, the cleaning brush mounting unit includes a first detection pin and a second detection pin, wherein the first detection pin is connected to a pull-up resistor, and the second detection pin is used to output the first voltage signal;

[0117] A micro switch is connected in parallel to the first detection pin and the second detection pin. The micro switch is disposed on the electric brush. The micro switch is cut off when the electric brush is lifted and turned on when the electric brush is lowered. The first voltage signal is also used to detect the working status of the installed electric brush.

[0118] Optionally, module 404 is further configured as follows:

[0119] If the first voltage signal is the first set value, then it is determined that no cleaning brush is installed in the cleaning brush installation unit;

[0120] If the first voltage signal is the second set value, then it is determined that a plate brush is installed in the cleaning brush mounting unit;

[0121] If the first voltage signal is the third set value, then it is determined that an electric brush is installed in the cleaning brush mounting unit and the electric brush is in the raised state;

[0122] If the first voltage signal is the fourth set value, then it is determined that an electric brush is installed in the cleaning brush mounting unit and the electric brush is in the down position.

[0123] This specification provides a cleaning brush detection unit that can acquire a first voltage signal output by the cleaning brush mounting unit when it is driven by the cleaning brush driving unit, analyze the first voltage signal, and determine whether a cleaning brush is installed in the cleaning brush mounting unit and the type of cleaning brush installed. Thus, before the cleaning equipment starts working, it can determine whether a cleaning brush is installed, allowing it to start working only after the cleaning brush is installed, avoiding liquid splashing and improving the user experience. In addition to detecting whether a cleaning brush is installed, the cleaning brush detection unit can also detect the type of installed cleaning brush, thereby activating the corresponding working mode based on the type of installed cleaning brush. A single cleaning device can be compatible with multiple types of cleaning brushes, offering high compatibility and ease of use for the user.

[0124] The above is a schematic scheme of a cleaning brush detection unit according to this embodiment. It should be noted that the technical solution of this cleaning brush detection unit belongs to the same concept as the technical solution of the cleaning brush detection circuit in the above-mentioned cleaning equipment. For details not described in detail in the technical solution of the cleaning brush detection unit, please refer to the description of the technical solution of the cleaning brush detection circuit in the above-mentioned cleaning equipment.

[0125] Figure 5 A structural block diagram of a computing device according to an embodiment of this specification is shown. The components of the computing device 500 include, but are not limited to, a memory 510 and a processor 520. The processor 520 is connected to the memory 510 via a bus 530, and a database 550 is used to store data.

[0126] The computing device 500 also includes an access device 540, which enables the computing device 500 to communicate via one or more networks 560. Examples of these networks include Public Switched Telephone Network (PSTN), Local Area Network (LAN), Wide Area Network (WAN), Personal Area Network (PAN), or combinations of communication networks such as the Internet. The access device 540 may include one or more of any type of wired or wireless network interface (e.g., Network Interface Controller (NIC)), such as an IEEE 802.11 Wireless Local Area Network (WLAN) wireless interface, Wi-MAX (Worldwide Interoperability for Microwave Access) interface, Ethernet interface, Universal Serial Bus (USB) interface, cellular network interface, Bluetooth interface, Near Field Communication (NFC) interface, and so on.

[0127] In one embodiment of this specification, the above-described components of the computing device 500 and Figure 5 Other components, not shown, can also be connected to each other, for example, via a bus. It should be understood that... Figure 5 The block diagram of the computing device shown is for illustrative purposes only and is not intended to limit the scope of this specification. Those skilled in the art can add or replace other components as needed.

[0128] The computing device 500 can be any type of stationary or mobile computing device, including mobile computers or mobile computing devices (e.g., tablet computers, personal digital assistants, laptop computers, notebook computers, netbooks, etc.), mobile phones (e.g., smartphones), wearable computing devices (e.g., smartwatches, smart glasses, etc.) or other types of mobile devices, or stationary computing devices such as desktop computers or PCs. The computing device 500 can also be a mobile or stationary server.

[0129] The processor 520 is configured to execute the following computer-executable instructions to implement the following method:

[0130] Acquire a first voltage signal output by the cleaning brush mounting unit, wherein the first voltage signal is output when the cleaning brush mounting unit is driven by the cleaning brush driving unit;

[0131] Based on the first voltage signal, determine whether a cleaning brush is installed in the cleaning brush installation unit, and the type of cleaning brush installed.

[0132] The above is a schematic representation of a computing device according to this embodiment. It should be noted that the technical solution of this computing device and the technical solution of the detection circuit for the cleaning brush in the aforementioned cleaning device belong to the same concept. Details not described in detail in the technical solution of the computing device can be found in the description of the technical solution of the detection circuit for the cleaning brush in the aforementioned cleaning device.

[0133] An embodiment of this specification also provides a computer-readable storage medium storing computer instructions that, when executed by a processor, are used to implement the steps of a detection method for a cleaning brush in any cleaning device.

[0134] The above is an illustrative embodiment of a computer-readable storage medium. It should be noted that the technical solution of this storage medium belongs to the same concept as the technical solution of the detection circuit for the cleaning brush in the aforementioned cleaning equipment. Details not described in detail in the technical solution of the storage medium can be found in the description of the technical solution of the detection circuit for the cleaning brush in the aforementioned cleaning equipment.

[0135] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0136] The computer instructions include computer program code, which may be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0137] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this specification is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this specification. Furthermore, those skilled in the art should also understand that the embodiments described in this specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this specification.

[0138] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0139] The preferred embodiments disclosed above are merely illustrative of this specification. The optional embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. These embodiments have been selected and specifically described in this specification to better explain the principles and practical applications of this specification, thereby enabling those skilled in the art to better understand and utilize this specification. This specification is limited only by the claims and their full scope and equivalents.

Claims

1. A detection circuit for a cleaning brush in a cleaning device, characterized in that The cleaning brush detection circuit comprises a cleaning brush driving unit, a cleaning brush mounting unit and a cleaning brush detection unit, the cleaning brush mounting unit comprises a first detection pin and a second detection pin, a first driving pin and a second driving pin, the first detection pin is connected with a first pull-up resistor, the first pull-up resistor is connected with a power supply, the second detection pin is connected in parallel with three branches, one branch is a micro switch, one branch is a second pull-up resistor and a current limiting resistor, and one branch is a filter capacitor, the micro switch is arranged on an electric brush, the micro switch is cut off when the electric brush is lifted and is turned on when the electric brush is put down, and the first driving pin and the second driving pin are used for connecting the cleaning brush driving unit. The cleaning brush driving unit is used for driving the cleaning brush mounting unit. The cleaning brush mounting unit is used for outputting a first voltage signal through the second detection pin when the first driving pin and the second driving pin are driven by the cleaning brush driving unit. The cleaning brush detection unit is used for acquiring the first voltage signal output by the second detection pin, determining whether the cleaning brush mounting unit is mounted with a cleaning brush and a type of the mounted cleaning brush according to the first voltage signal, and detecting a working state of the mounted electric brush by using the first voltage signal.

2. The detection circuit of a cleaning brush in a cleaning device according to claim 1, characterized in that, The cleaning brush mounting unit comprises a single detection pin, a first driving pin and a second driving pin, the first driving pin and the second driving pin are used for connecting the cleaning brush driving unit, and the single detection pin is used for outputting the first voltage signal.

3. The detection circuit of a cleaning brush in a cleaning device according to claim 2, characterized in that, The cleaning brush detection unit is further used for: If the first voltage signal is not a voltage setting value, it is determined that the cleaning brush mounting unit is mounted with a cleaning brush, and the mounted cleaning brush is a plate brush. If the first voltage signal is the voltage setting value, it is determined that the cleaning brush mounting unit is not mounted with a cleaning brush or is mounted with an electric brush.

4. The cleaning device brush detection circuit according to claim 3, wherein The cleaning brush driving unit comprises a power input end, a switch module, a switch control signal input end, a first connection pin, a second connection pin and a detection signal output end, the first connection pin is connected with the first driving pin, and the second connection pin is connected with the second driving pin. The switch control signal input end is used for inputting a switch control signal, the switch control signal is used for controlling conduction and cut-off of the switch module, the conduction and cut-off of the switch module are used for controlling whether to supply power to the cleaning brush mounting unit, and the detection signal output end is used for outputting a second voltage signal. The cleaning brush detection unit is further used for acquiring the second voltage signal output by the detection signal output end of the cleaning brush driving unit when the first voltage signal is the voltage setting value, and determining whether the cleaning brush mounting unit is mounted with a cleaning brush and a type of the mounted cleaning brush according to the second voltage signal.

5. The cleaning device brush detection circuit of claim 4, wherein, The cleaning brush detection unit is further used for: determining a motor current signal according to the second voltage signal; if the motor current signal is a first current setting value, it is determined that the cleaning brush mounting unit is mounted with a cleaning brush, and the mounted cleaning brush is an electric brush. If the motor current signal is a second current set value, it is determined that no cleaning brush is installed in the cleaning brush mounting unit.

6. The detection circuit of a cleaning brush in a cleaning apparatus according to claim 1, wherein The cleaning brush detection unit is further used for: If the first voltage signal is a first set value, it is determined that no cleaning brush is installed in the cleaning brush mounting unit; If the first voltage signal is a second set value, it is determined that a plate brush is installed in the cleaning brush mounting unit; If the first voltage signal is a third set value, it is determined that an electric brush is installed in the cleaning brush mounting unit, and the electric brush is in a raised state; If the first voltage signal is a fourth set value, it is determined that an electric brush is installed in the cleaning brush mounting unit, and the electric brush is in a lowered state.

7. A method of detecting a cleaning brush in a cleaning apparatus, characterized by, The cleaning brush detection unit applied to a detection circuit of a cleaning brush, the method comprises: Obtaining a first voltage signal output by a second detection pin of a cleaning brush mounting unit, wherein, in the case that the cleaning brush mounting unit comprises a first detection pin, a second detection pin, a first driving pin and a second driving pin, the first detection pin is connected with a first pull-up resistor, the first pull-up resistor is connected with a power supply, the second detection pin is connected with three branches in parallel, one branch is a micro switch, one branch is a second pull-up resistor and a current limiting resistor, and one branch is a filter capacitor, the micro switch is arranged on an electric brush, the micro switch is cut off when the electric brush is raised, and the micro switch is turned on when the electric brush is lowered, the first driving pin and the second driving pin are used for connecting a cleaning brush driving unit, and the first voltage signal is output by the second detection pin when the first driving pin and the second driving pin are driven by the cleaning brush driving unit; According to the first voltage signal, it is determined whether a cleaning brush is installed in the cleaning brush mounting unit, and the type of the installed cleaning brush, and the working state of the installed electric brush is detected according to the first voltage signal.

8. The method of claim 7, wherein the detecting of the cleaning brush in the cleaning apparatus comprises: detecting a change in the resistance of the cleaning brush. In the case that the cleaning brush mounting unit comprises a single detection pin, a first driving pin and a second driving pin, the first driving pin and the second driving pin are used for connecting the cleaning brush driving unit, and the single detection pin is used for outputting the first voltage signal; the method comprises: Obtaining a first voltage signal output by the single detection pin; If the first voltage signal is not a voltage set value, it is determined that a cleaning brush is installed in the cleaning brush mounting unit, and the installed cleaning brush is a plate brush; If the first voltage signal is a voltage set value, a second voltage signal output by the cleaning brush driving unit is obtained, and according to the second voltage signal, it is determined whether a cleaning brush is installed in the cleaning brush mounting unit, and the type of the installed cleaning brush.

9. The method of claim 8, wherein the detecting of the cleaning brush in the cleaning apparatus comprises: detecting a change in a resistance of the cleaning brush. According to the second voltage signal, it is determined whether a cleaning brush is installed in the cleaning brush mounting unit, and the type of the installed cleaning brush, comprising: According to the second voltage signal, a motor current signal is determined; If the motor current signal is a first current set value, it is determined that a cleaning brush is installed in the cleaning brush mounting unit, and the installed cleaning brush is an electric brush; If the motor current signal is a second current set value, it is determined that no cleaning brush is installed in the cleaning brush mounting unit.

10. The method of claim 7, wherein the detecting of the cleaning brush in the cleaning apparatus comprises: detecting a change in a resistance of the cleaning brush. The method comprises the following steps of: if the first voltage signal is a first set value, it is determined that no cleaning brush is installed in the cleaning brush installation unit; if the first voltage signal is a second set value, it is determined that a plate brush is installed in the cleaning brush installation unit; if the first voltage signal is a third set value, it is determined that an electric brush is installed in the cleaning brush installation unit, and the electric brush is in a lifted state; if the first voltage signal is a fourth set value, it is determined that an electric brush is installed in the cleaning brush installation unit, and the electric brush is in a lowered state.

11. A computing device, comprising: a memory and a processor; the memory is configured to store computer executable instructions, and the processor is configured to execute the computer executable instructions to implement the following method: obtaining a first voltage signal output by a cleaning brush installation unit, wherein the cleaning brush installation unit comprises a first detection pin and a second detection pin, a first driving pin and a second driving pin, the first detection pin is connected with a first pull-up resistor, the first pull-up resistor is connected with a power supply, the second detection pin is connected with three branches in parallel, one branch is a micro switch, one branch is a second pull-up resistor and a current limiting resistor, and one branch is a filter capacitor, the micro switch is arranged on an electric brush, the micro switch is cut off when the electric brush is lifted and is turned on when the electric brush is lowered, the first driving pin and the second driving pin are used to connect a cleaning brush driving unit, and the first voltage signal is output by the cleaning brush installation unit through the second detection pin when the first driving pin and the second driving pin are driven by the cleaning brush driving unit; determining whether a cleaning brush is installed in the cleaning brush installation unit and a type of the installed cleaning brush according to the first voltage signal, and detecting a working state of the installed electric brush according to the first voltage signal.

12. A computer readable storage medium, which stores computer instructions, and the computer instructions are executed by a processor to implement the steps of the method for detecting a cleaning brush in the cleaning device according to any one of claims 7 to 10.

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