Floor cleaning equipment and control methods for floor cleaning equipment

Abstract

This manual provides a floor cleaning device and its control method. The floor cleaning device includes a liquid storage container and a main control board. The main control board includes a power supply, a switching unit, a liquid sensing unit, and a detection and control unit. The switching unit is located between the power supply and the liquid sensing unit, which are connected to the detection and control unit. The liquid sensing unit detects the liquid level in the liquid storage container and outputs this information to the detection and control unit. The detection and control unit outputs a control signal to the switching unit based on the liquid level information. The switching unit controls the connection and disconnection of the circuit between the power supply and the liquid sensing unit based on the received control signal. This allows for flexible control of the circuit connection and disconnection between the power supply and the liquid sensing unit, preventing component corrosion caused by prolonged conduction of the liquid sensing unit and effectively improving the corrosion situation of the liquid sensing unit.

Description

Technical Field

[0001] This manual relates to the field of smart home technology, and in particular to a floor cleaning device and a control method for the floor cleaning device. Background Technology

[0002] With the rapid development of the Internet and artificial intelligence technologies, 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.

[0003] In the prior art, in order to complete the corresponding cleaning operation using cleaning equipment, a liquid storage container is set on the cleaning equipment to store the liquid during the cleaning operation. Currently, electrode plates can be set in the liquid storage container to detect the liquid level. If the liquid is not full, it will be detected that the two electrode plates are not connected to each other. If the liquid is full, the liquid will cause the two electrode plates to form a circuit.

[0004] However, in the above method of detecting the liquid level in a liquid storage container by detecting whether the electrode plate is conductive, if the liquid is full, the electrode plate will be conductive for a long time, which will cause the electrode plate to corrode, reduce the service life of the electrode plate, increase the number of maintenance times of the cleaning equipment, and even affect the service life of the cleaning equipment. Summary of the Invention

[0005] In view of this, the embodiments of this specification provide a floor cleaning device and a control method for the floor cleaning device to solve the technical defects existing in the prior art.

[0006] According to a first aspect of the embodiments of this specification, a floor cleaning device is provided. The floor cleaning device includes a liquid storage container and a main control board. The main control board includes a power supply, a switching unit, a liquid sensing unit, and a detection and control unit. The switching unit is located between the power supply and the liquid sensing unit, and the liquid sensing unit and the detection and control unit are connected.

[0007] The liquid sensing unit is used to detect the liquid level information in the liquid storage container and output the liquid level information to the detection control unit; the detection control unit is used to output a control signal to the switching unit based on the liquid level information; the switching unit is used to control the on / off of the circuit between the power supply and the liquid sensing unit based on the received control signal.

[0008] According to a second aspect of the embodiments of this specification, a control method for a floor cleaning device is provided. The floor cleaning device includes a liquid storage container and a main control board. The main control board includes a power supply, a switching unit, a liquid sensing unit, and a detection and control unit. The switching unit is located between the power supply and the liquid sensing unit, and the liquid sensing unit and the detection and control unit are connected. The control method includes:

[0009] The liquid sensing unit detects the liquid level information in the liquid storage container and outputs the liquid level information to the detection and control unit;

[0010] Based on the liquid level information, the detection and control unit outputs a control signal to the switching unit;

[0011] The switching unit controls the connection and disconnection of the circuit between the power supply and the liquid sensing unit based on the received control signal.

[0012] According to a third aspect of the embodiments of this specification, a control method for a floor cleaning device is provided, the floor cleaning device including a liquid storage container, the control method comprising:

[0013] Information is obtained that the liquid level in the liquid storage container has reached a preset level;

[0014] Based on the information provided, the power supply to the liquid sensing unit is shut off.

[0015] According to a fourth aspect of the embodiments of this specification, a control method for a floor cleaning device is provided, applied to a main control board of the floor cleaning device. The main control board includes a power supply, a switching unit, a liquid sensing unit, and a detection and control unit. The switching unit is located between the power supply and the liquid sensing unit, and the liquid sensing unit and the detection and control unit are connected. The control method includes:

[0016] Monitor the operating status of the main motor of the ground cleaning equipment;

[0017] When the main motor is detected to be stopped, a shutdown control signal is output to the switching unit. This shutdown control signal is used to control the circuit between the power supply and the liquid sensing unit.

[0018] The floor cleaning equipment provided in the embodiments of this specification includes a liquid storage container and a main control board. The main control board includes a power supply, a switching unit, a liquid sensing unit, and a detection and control unit. The switching unit is located between the power supply and the liquid sensing unit, and the liquid sensing unit and the detection and control unit are connected.

[0019] The liquid sensing unit is used to detect the liquid level information in the liquid storage container and output the liquid level information to the detection control unit; the detection control unit is used to output a control signal to the switching unit based on the liquid level information; the switching unit is used to control the on / off of the circuit between the power supply and the liquid sensing unit based on the received control signal.

[0020] In this configuration, a switching unit is added between the power supply and the liquid sensing unit on the main control board. The detection and control unit can control the switching unit to turn on and off based on the liquid level information detected by the liquid sensing unit, thereby controlling the continuity of the circuit between the power supply and the liquid sensing unit. This allows for flexible control of the circuit between the power supply and the liquid sensing unit. When there is no need for liquid level detection, the circuit between the power supply and the liquid sensing unit is disconnected, i.e., the power supply to the liquid sensing unit is turned off. When it is necessary to detect the liquid level in the liquid storage device again, the circuit between the power supply and the liquid sensing unit is reconnected. This avoids corrosion of components caused by prolonged operation of the liquid sensing unit, effectively improving corrosion resistance, extending the service life of the liquid sensing unit, reducing maintenance frequency, and thus extending the service life of the floor cleaning equipment. Attached Figure Description

[0021] Figure 1 This is a circuit diagram of a main control board provided in one embodiment of this specification;

[0022] Figure 2 This is a structural block diagram of a floor cleaning device provided in one embodiment of this specification;

[0023] Figure 3a This is a schematic diagram of the structure of a floor cleaning device provided in one embodiment of this specification;

[0024] Figure 3b This is a schematic diagram of the body state of a floor cleaning device provided in one embodiment of this specification;

[0025] Figure 4 This is a circuit diagram of another main control board provided in one embodiment of this specification;

[0026] Figure 5 This is a circuit diagram of another main control board provided in one embodiment of this specification;

[0027] Figure 6 This is a flowchart illustrating a control method for a floor cleaning device according to an embodiment of this specification;

[0028] Figure 7 This is a flowchart of a control method for another floor cleaning device provided in one embodiment of this specification;

[0029] Figure 8This is a flowchart of a control method for another floor cleaning device provided in one embodiment of this specification;

[0030] Figure 9 This is a structural block diagram of a control device for a floor cleaning equipment provided in one embodiment of this specification;

[0031] Figure 10 This is a structural block diagram of a control device for another floor cleaning equipment provided in one embodiment of this specification. Detailed Implementation

[0032] 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.

[0033] 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” 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.

[0034] 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."

[0035] It should be noted that in order to complete the corresponding cleaning operation using the cleaning equipment, the cleaning equipment is equipped with a liquid storage container to store the liquid during the cleaning operation. Currently, electrode plates can be set in the liquid storage container to detect the liquid level. If the liquid is not full, it will detect that the two electrode plates are not connected to each other. If the liquid is full, the liquid will allow the two electrode plates to form a circuit.

[0036] Example, Figure 1 This is a circuit diagram of a main control board provided in one embodiment of this specification, such as... Figure 1As shown, the main control board includes power supply 1 (e.g., 3.3V), power supply 2 (e.g., 5V), pull-up resistor R94, two electrode plates JP20, Zener diode D29, voltage follower U14, current-limiting resistor R91, capacitor C89, capacitor C94, and signal output terminal AD_V. Power supply 1 is connected to pull-up resistor R94, which has two branches: one branch connects to pin 1 of the two electrode plates JP20, and the other branch connects to pin 1 of voltage follower U14. Pin 2 of the two electrode plates JP20 is grounded. One end of Zener diode D29 is grounded, and the other end is connected to pin 1 of the two electrode plates JP20. One end of capacitor C89 is connected to pin 1 of voltage follower U14, and the other end is grounded. In another embodiment, power supply 1 and power supply 2 can be the same.

[0037] Pin 3 of voltage follower U14 is connected to pin 4. Pins 3 and 4 are connected to current-limiting resistor R91. Pin 2 of voltage follower U14 is grounded, and pin 5 is connected to power supply 2. One end of capacitor C94 is connected to power supply 2, and the other end is grounded. Current-limiting resistor R91 is connected to the signal output terminal AD_V.

[0038] It should be noted that the two electrode plates are placed inside the liquid storage container. These two electrodes detect whether the container is full. Current flows through the two electrodes; if the container is not full, it will detect a lack of electrical conductivity between the two electrodes. If the liquid reaches a preset level, the liquid will cause the two electrodes to conduct, forming a circuit, and the cleaning device will send a signal indicating that the liquid storage container is full. Figure 1 As shown, power supply 1 always supplies power to the two electrode plates. If the liquid storage container is full, the two electrode plates will conduct. Prolonged conduction of the two electrode plates will cause corrosion of the electrode plates, reduce their service life, increase the number of maintenance times for the cleaning equipment, and even affect the service life of the cleaning equipment.

[0039] Therefore, this specification provides a floor cleaning device in which a switch is added between the power supply and the electrode plates in the main control board. This switch can be turned on and off to control the continuity of the circuit between the power supply and the electrode plates, thereby controlling the power supply to the electrode plates. In this way, the power supply to the electrode plates can be turned off when the liquid level is detected to be full, and then turned on again when re-detection is required. This solves the problem of electrode plate corrosion caused by prolonged power supply when the liquid is full, effectively improving the corrosion of electrode plates used for liquid detection in liquid storage containers, extending the service life of the electrode plates, and reducing the frequency of maintenance.

[0040] This specification provides a floor cleaning device and a control method for the floor cleaning device, which will be described in detail in the following embodiments.

[0041] Figure 2A structural block diagram of a floor cleaning device according to an embodiment of this specification is shown, such as... Figure 2 As shown, the floor cleaning equipment includes a liquid storage container 202 and a main control board 204. The main control board 204 includes a power supply 2042, a switch unit 2044, a liquid sensing unit 2046, and a detection and control unit 2048. The switch unit 2044 is located between the power supply 2022 and the liquid sensing unit 2046, and the liquid sensing unit 2046 and the detection and control unit 2048 are connected.

[0042] The liquid sensing unit 2046 is used to detect the liquid level information in the liquid storage container and output the liquid level information to the detection control unit 2048;

[0043] The detection and control unit 2048 is used to output control signals to the switching unit 2044 based on the liquid level information;

[0044] The switching unit 2044 is used to control the on / off state of the circuit between the power supply 2022 and the liquid sensing unit 2046 based on the received control signal.

[0045] It should be noted that the switching unit can control the connection and disconnection of the circuit between the power supply and the liquid sensing unit. When the circuit between the power supply and the liquid sensing unit is in the on state, the power supply current can flow into the liquid sensing unit. The liquid sensing unit can detect the liquid level information in the liquid storage container and output the liquid level information to the detection control unit. The detection control unit can output a control signal to the switching unit based on the output liquid level information, thereby controlling the switching unit to be on and off.

[0046] Specifically, the power supply is a component that supplies power to the liquid sensing unit. The voltage provided by the power supply can be set according to actual needs. The voltage provided by the power supply is related to the voltage signal output by the subsequent liquid sensing unit. For example, the power supply can be a 3.3V power supply.

[0047] A switching unit is a switching module that controls the connection and disconnection of the circuit between the power supply and the liquid sensing unit. Specifically, when the circuit between the power supply and the liquid sensing unit is open, the power supply can provide power to the liquid sensing unit; when the circuit between the power supply and the liquid sensing unit is closed, the power supply to the liquid sensing unit stops, i.e., the power supply to the liquid sensing unit is disconnected. In practice, the circuit can be designed so that the opening and closing of the switching unit is the same as the opening and closing of the circuit between the power supply and the liquid sensing unit, or it can be designed in reverse. For example, the circuit can be designed so that when the switching unit is closed, the circuit between the power supply and the liquid sensing unit is open, or it can be designed so that when the switching unit is open, the circuit between the power supply and the liquid sensing unit is open.

[0048] The liquid sensing unit can detect the liquid level information in the liquid storage container and output the liquid level information to the detection control unit. The detection control unit can control the switching unit to turn on and off based on the liquid level information, thereby controlling the shutdown of the circuit between the power supply and the liquid sensing unit.

[0049] In practical applications, the switching unit is located between the power supply and the liquid sensing unit, which is connected to the detection and control unit. Specifically, the switching unit's on / off state corresponds to the on / off state of the circuit between the power supply and the liquid sensing unit. That is, when the switching unit is on, the circuit between the power supply and the liquid sensing unit is also on; when the switching unit is off, the circuit between the power supply and the liquid sensing unit is also off. In this case, the switching unit and the liquid sensing unit are connected in series, forming a liquid detection circuit.

[0050] In this embodiment, a switching unit is added between the power supply and the liquid sensing unit on the main control board. The detection and control unit can control the switching unit to turn on and off based on the liquid level information detected by the liquid sensing unit, thereby controlling the connection and disconnection of the circuit between the power supply and the liquid sensing unit. This allows for flexible control of the circuit between the power supply and the liquid sensing unit. When there is no need for liquid level detection, the circuit between the power supply and the liquid sensing unit is disconnected, i.e., the power supply to the liquid sensing unit is turned off. When it is necessary to detect the liquid level in the liquid storage device again, the circuit between the power supply and the liquid sensing unit is turned on again. This avoids component corrosion caused by prolonged operation of the liquid sensing unit, effectively improving the corrosion situation of the liquid sensing unit, extending its service life, reducing maintenance frequency, and thus extending the service life of the floor cleaning equipment.

[0051] In one optional embodiment of this invention, the liquid sensing unit includes a conductive component disposed in a liquid storage container. The conductive component includes a first conductor and a second conductor, wherein the first conductor is connected to a power source and the second conductor is grounded.

[0052] The conductive component is used to detect the liquid level information in the liquid storage container and convert the liquid level information into an electrical signal, which is then output to the detection and control unit.

[0053] It should be noted that the liquid sensing unit includes a conductive component disposed in a liquid storage container. The liquid storage container can be disposed in the floor cleaning equipment to store the liquids involved in the operation of the floor cleaning equipment. When the liquid overflows the conductive component disposed in the liquid storage container, the liquid sensing unit can be turned on.

[0054] As an example, the liquid storage container can be a wastewater tank. When the wastewater accumulated in the tank overflows the conductive components installed therein, the liquid sensing unit is activated, indicating that the wastewater tank is full and prompting the user to empty it. Alternatively, if the floor cleaning equipment has an automatic liquid replenishment function, the liquid storage container can also be a clean water tank. When clean water (or a mixture of clean water and cleaning solution) overflows the conductive components installed therein, the liquid sensing unit is activated, indicating that the clean water tank is full and liquid replenishment can be stopped.

[0055] Example, Figure 3a This is a structural schematic diagram of a floor cleaning device provided in one embodiment of this specification, as shown below. Figure 3a As shown, the ground cleaning equipment is equipped with a wastewater tank, which contains conductive components.

[0056] In practical applications, the conductive component can be installed in the liquid storage container. The conductive component includes a first conductor and a second conductor, with a gap between the two conductors. When the liquid in the liquid storage container overflows the first conductor and the second conductor, the two conductors can form a circuit, and the conductive component is conductive. At this time, the conductive component generates resistance, which can divert the voltage output by the power supply. The liquid sensing unit outputs a first voltage. If the first voltage is less than a set voltage threshold, the first voltage is the first liquid level signal, which can indicate that the liquid in the liquid storage container has overflowed the first conductor and the second conductor, that is, the liquid level has reached the preset liquid level.

[0057] When the liquid in the liquid storage container does not overflow the first and second conductors, there is a gap between the two conductors, and a circuit cannot be formed. At this time, the conductive component is in a cut-off state, and the liquid sensing unit outputs a second voltage. The second voltage is greater than the set voltage threshold. This second voltage is the second liquid level signal, which can indicate that the liquid in the liquid storage container has not overflowed the first and second conductors, that is, the liquid level has not reached the preset liquid level.

[0058] The conductor can be an electrode sheet, probe, etc., and there can be at least one conductive component in the liquid storage container. The location of each conductive component can be different, and the length of the conductor in different conductive components can be the same or different.

[0059] In practical applications, a switching unit is set up to control the power supply of the conductive component. Therefore, the first conductor in the conductive component can be connected to the switching unit, which is grounded, and the second conductor is also grounded. Specifically, the switching unit is connected to the power supply, and the first conductor can also be connected to the power supply. If the switching unit is on, the current from the power supply flows directly into the ground terminal through the switching unit, and no current flows into the first conductor; at this time, the power supply to the conductive component is off. If the switching unit is off, the current from the power supply cannot flow directly into the ground terminal through the switching unit, and the current flows into the first conductor; at this time, the power supply to the conductive component is on, and the conductive component can detect the liquid level in the liquid storage container.

[0060] In the embodiments of this specification, a conductive component is provided in the liquid storage container. The liquid level in the liquid storage container will affect the conduction and cutoff of the conductive component, thereby affecting the level signal output by the liquid sensing unit. Therefore, based on the conductive component provided in the liquid storage container, the liquid level in the liquid storage container can be detected. The detection accuracy of the liquid level is high and the false judgment rate is low.

[0061] In one optional embodiment of this invention, the liquid sensing unit further includes a voltage follower, a second current-limiting resistor, and a signal output terminal;

[0062] The first pin of the voltage follower is connected to the path between the first conductor and the power supply. The second pin of the voltage follower is connected to the third pin. The second and third pins are connected to the second current-limiting resistor, which is connected to the signal output terminal. The fourth pin of the voltage follower is connected to the power supply terminal, and the fifth pin of the voltage follower is grounded.

[0063] It should be noted that the first pin of the voltage follower is connected to the path between the first conductor and the power supply. When the first and second conductors are not conducting, the voltage output from the power supply can be directly output to the first pin of the voltage follower. The second pin of the voltage follower is connected to the third pin, and the second and third pins are connected to the signal output terminal. Therefore, the signal output terminal can output the second voltage, i.e., the second liquid level signal. When the first and second conductors are conducting, the conductive component acts as a resistor, which can divide the power supply voltage. The power supply voltage is then divided and output to the first pin of the voltage follower. The second pin of the voltage follower is connected to the third pin, and the second and third pins are connected to the signal output terminal. Therefore, the signal output terminal can output the first voltage, i.e., the first liquid level signal.

[0064] In addition, to prevent the power supply voltage from being too high and the second voltage output by the signal output terminal from being too high when the first conductor and the second conductor are not conducting, a current-limiting resistor can be set after the second and third pins, i.e., the second current-limiting resistor. One end of the second current-limiting resistor is connected to the second and third pins, and the other end is connected to the signal output terminal to limit the voltage output by the signal output terminal and avoid damage to the detection and control unit.

[0065] Furthermore, the liquid sensing unit also includes a Zener diode, one end of which is connected to the first conductor and the other end is grounded.

[0066] It should be noted that a Zener diode is installed in the liquid sensing unit. One end of the Zener diode is connected to the first conductor of the conductive component, and the other end is grounded to prevent static electricity from being generated by liquid fluctuations in the liquid storage container.

[0067] Furthermore, the liquid sensing unit also includes a first filter capacitor and a second filter capacitor. One end of the first filter capacitor is connected to the first pin of the voltage follower, and the other end is grounded. One end of the second filter capacitor is connected to the fifth pin, and the other end is grounded.

[0068] It should be noted that the liquid sensing unit also includes a first filter capacitor and a second filter capacitor, which are used to filter out noise signals generated by liquid fluctuations in the liquid storage container.

[0069] Furthermore, the liquid sensing unit also includes a pull-up resistor, one end of which is connected to the power supply, and the other end is connected to the switching unit and the conductive components. This pull-up resistor prevents excessive power supply voltage from damaging the switching unit and limits the voltage supplied to the conductive components, preventing them from burning out.

[0070] In one optional embodiment of this invention, the switching unit includes a switching component and a control signal input terminal. The control signal input terminal is connected to the switching component and is used to receive the control signal output by the detection and control unit.

[0071] In practical applications, the switching unit can be a control circuit capable of enabling conduction and cutoff functions. This switching unit can include switching components and a control signal input terminal. The switching components can be components capable of both conduction and cutoff states, such as NMOS transistors, PMOS transistors, and bipolar transistors. Additionally, the control signal input terminal can receive control signals from the detection and control unit. These control signals can control the switching components to be in a conduction or cutoff state, thereby controlling the circuit connection between the power supply and the liquid sensing unit.

[0072] In one optional embodiment of this example, the switching component is an NMOS transistor, and the switching unit further includes a first current-limiting resistor and a pull-down resistor;

[0073] The drain of the NMOS transistor is connected to the power supply, the source of the NMOS transistor is grounded, the gate of the NMOS transistor is connected to the first current-limiting resistor, the first current-limiting resistor is connected to the control signal input terminal, and the control signal input terminal is also connected to the pull-down resistor, which is grounded.

[0074] It should be noted that, taking the NMOS transistor as an example of a switching device, the conduction condition of the NMOS transistor is that there is a set voltage difference between the gate and the source, that is, the gate voltage is higher than the set value of the source voltage. Since the source of the NMOS transistor is grounded, the conduction and cutoff of the NMOS transistor can be controlled by adjusting the gate voltage of the NMOS transistor.

[0075] In practice, the source of the NMOS transistor is grounded, and the drain is connected to the power supply. The gate of the NMOS transistor is connected to the control signal input terminal. If the control signal input terminal is a high voltage signal, and the voltage in the high voltage signal is greater than the set value of the source voltage, the NMOS transistor will be turned on. The current of the power supply flows directly into the ground terminal through the NMOS transistor. At this time, the circuit between the power supply and the liquid sensing unit is turned off, and the power supply does not supply power to the liquid sensing unit. That is, there is no current in the liquid sensing unit at this time. The signal output by the output unit indicates that the switching unit is in the on state, and the circuit between the power supply and the liquid sensing unit is in the off state.

[0076] If the control signal input to the control signal input terminal is a low-voltage signal, and the voltage in this low-voltage signal is not greater than the source voltage, or the value greater than the source voltage does not meet the set value, then the NMOS transistor will not conduct and will be in a cut-off state. The power supply current cannot directly flow into the ground terminal through the NMOS transistor. At this time, the power supply current will flow into the liquid sensing unit, supplying power to the liquid sensing unit. That is, the circuit between the power supply and the liquid sensing unit is connected. The signal output by the output unit at this time represents the liquid level signal detected by the liquid sensing unit.

[0077] It should be noted that, to prevent the voltage signal input to the control signal input terminal from being too large, a current-limiting resistor, i.e., the first current-limiting resistor, can be connected between the control signal input terminal and the gate of the NMOS transistor. This prevents the voltage signal input to the control signal input terminal from being too large and damaging the NMOS transistor. Furthermore, a pull-down resistor can also be connected to the control signal input terminal and grounded to prevent the NMOS transistor from being mistakenly turned on.

[0078] In another implementation, the switching component can also be a transistor. The collector of the transistor is connected to the power supply, the emitter of the transistor is grounded, the base of the transistor is connected to the first current-limiting resistor, the first current-limiting resistor is connected to the control signal input terminal, and the control signal input terminal is also connected to the pull-down resistor, which is grounded.

[0079] In one optional embodiment of this example, the circuit between the power supply and the liquid sensing unit is in a conductive state;

[0080] The liquid sensing unit is used to output a first liquid level signal to the detection and control unit when the conductive component is turned on, and to output a second liquid level signal to the detection and control unit when the conductive component is not turned on.

[0081] The first liquid level signal is used to indicate that the liquid level in the liquid storage container has reached the preset liquid level, and the second liquid level signal is used to indicate that the liquid level in the liquid storage container has not reached the preset liquid level.

[0082] It should be noted that when the circuit between the power supply and the liquid sensing unit is in a conductive state, the power supply current can flow into the conductive component in the liquid sensing unit, which can detect the liquid level in the liquid storage container. Specifically, if the liquid level in the liquid storage container reaches the preset level, the conductive component in the liquid sensing unit is conductive, acting as a resistor and diverting the power supply voltage. At this time, the liquid sensing unit will output a first liquid level signal, which can be a first voltage, lower than a set voltage threshold. If the liquid level in the liquid storage container does not reach the preset level, the conductive component in the liquid sensing unit is not conductive, the corresponding branch of the conductive component in the liquid sensing unit is open-circuited, and the voltage provided by the power supply is directly output. At this time, the liquid sensing unit outputs a second liquid level signal, which can be a second voltage, higher than the set voltage threshold.

[0083] The voltage threshold can be set based on the power supply voltage. When the conductive component in the liquid sensing unit is turned on, the first output voltage should be less than the power supply voltage; and when the conductive component in the liquid sensing unit is not turned on, the second output voltage should be close to the power supply voltage.

[0084] In the embodiments of this specification, if the liquid sensing unit outputs a first liquid level signal to the detection and control unit, it indicates that the liquid level in the liquid storage container has reached the preset liquid level, i.e., the container is full. If the liquid sensing unit outputs a second liquid level signal to the detection and control unit, it indicates that the liquid level in the liquid storage container has not reached the preset liquid level, i.e., the container is not full. By detecting the liquid level in the storage container through the liquid sensing unit, the liquid level signal can be converted into an electrical signal, which allows the subsequent detection and control unit to perform corresponding control based on the output electrical signal, such as controlling the main motor to stop working, controlling the switching unit, and controlling the on / off of the circuit between the power supply and the liquid sensing unit.

[0085] In addition, when the circuit between the power supply and the liquid sensing unit is in the off state, the power supply current can flow directly into the switching unit, and the power supply does not supply power to the liquid sensing unit. That is, there is no current in the liquid sensing unit at this time. The signal output by the output unit indicates that the circuit between the power supply and the liquid sensing unit is in the off state, that is, the power supply to the liquid sensing unit is disconnected.

[0086] In practical applications, once the liquid level in the liquid storage container reaches the preset level, the liquid sensing unit remains in a conductive state, with current constantly flowing through it. Prolonged conductivity can lead to corrosion of the conductive components within the liquid sensing unit, reducing its lifespan. Therefore, the detection and control unit can output a control signal to the switching unit based on the detected liquid level signal. By controlling the switching unit, the circuit between the power supply and the liquid sensing unit is shut off, effectively preventing corrosion of the liquid sensing unit.

[0087] In an optional embodiment of this example, the detection control unit is further configured to:

[0088] Upon receiving the first liquid level signal, a shutdown control signal is output to the switching unit, wherein the shutdown control signal is used to control the circuit between the power supply and the liquid sensing unit.

[0089] It should be noted that when the detection control unit receives the first liquid level signal, it indicates that the liquid level in the liquid storage container has reached the preset liquid level, and the liquid sensing unit is turned on. At this time, the conductive components in the liquid sensing unit are flooded by the liquid. If the liquid sensing unit is powered on for a long time, it may be corroded. Therefore, at this time, the detection control unit can output a shutdown control signal to the switch unit. This shutdown control signal is used to control the switch unit to turn on or off, thereby controlling the circuit between the power supply and the liquid sensing unit.

[0090] In practical applications, the circuit can be designed so that the switching unit is turned on and off, which is the same as the circuit between the power supply and the liquid sensing unit. Alternatively, it can be designed in the opposite way. For example, the circuit can be designed so that when the switching unit is turned off, the circuit between the power supply and the liquid sensing unit is on, or it can be designed so that when the switching unit is turned on, the circuit between the power supply and the liquid sensing unit is on.

[0091] As an example, the switching unit can be an electronic switch, with one end connected to a power source and the other end connected to a liquid sensing unit. The electronic switch can be turned on or off based on a conduction signal and a cutoff signal. That is, an electronic switch can be directly set on the circuit between the power source and the liquid sensing unit. When the electronic switch receives a conduction signal, it automatically closes, and the circuit between the power source and the liquid sensing unit is connected. When the electronic switch receives a cutoff signal, it automatically opens, and the circuit between the power source and the liquid sensing unit is turned off.

[0092] Furthermore, the conduction and cutoff of the switching unit are opposite to the on / off state of the circuit between the power supply and the liquid sensing unit. That is, when the switching unit is on, the circuit between the power supply and the liquid sensing unit is off; conversely, when the switching unit is off, the circuit between the power supply and the liquid sensing unit is on. In this case, one end of the switching unit is connected to both the power supply and the liquid sensing unit, while the other end is grounded. In other words, if the switching unit is on, the power supply current flows directly through the switching unit to ground, and no current flows into the liquid sensing unit, thus the circuit between the power supply and the liquid sensing unit is off. If the switching unit is off, the power supply current cannot flow directly through the switching unit to ground, and current flows into the liquid sensing unit, thus the circuit between the power supply and the liquid sensing unit is on.

[0093] In the embodiments described in this specification, when the circuit between the power supply and the liquid sensing unit is turned off, the power supply does not supply power to the liquid sensing unit, thus disconnecting the power supply to the liquid sensing unit. At this time, there is no current in the liquid sensing unit, which effectively improves the corrosion situation of the liquid sensing unit.

[0094] In an optional embodiment of this example, the detection control unit is further configured to:

[0095] Upon receiving the first liquid level signal, monitor whether the first liquid level signal output by the liquid sensing unit disappears within a set time period. If the first liquid signal does not disappear, output a shutdown control signal to the switching unit.

[0096] If the first liquid level signal disappears and a change in the body status of the floor cleaning equipment is detected, no shutdown control signal will be output to the switch unit; if the body status is detected to become tilted, the floor cleaning equipment will be controlled to restart.

[0097] It should be noted that during the cleaning process, the floor cleaning equipment may mis-trigger the liquid sensing unit due to issues such as machine tilting, movement, or equipment malfunction. This could cause the liquid sensing unit to incorrectly output the first liquid level signal, indicating that the liquid level in the liquid storage container has reached the preset level. In other words, the liquid level protection in the liquid storage container may be falsely triggered by structural problems or abnormal use.

[0098] Therefore, in practical applications, a set time can be set, such as 5S, 10S, 15S, etc. If the first liquid level signal output by the liquid sensing unit does not disappear within the set time, it indicates that the liquid level in the liquid storage container has indeed reached the preset level, and the liquid storage container needs to be processed. At this time, the detection control unit can send a shutdown control signal to the switch unit to control the switch unit to turn on or off, thereby controlling the circuit between the power supply and the liquid sensing unit to prevent the liquid from corroding the liquid sensing unit.

[0099] If the first liquid level signal output by the liquid sensing unit disappears within the set time, it indicates that the previous signal was a false alarm. The detection control unit can monitor whether the body status of the floor cleaning equipment has changed. If the first liquid level signal disappears and the body status of the floor cleaning equipment has changed, the detection control unit will not send a shutdown control signal to the switch unit. When the body status is detected to have become tilted, the main motor of the floor cleaning equipment will be controlled to start working again, and the liquid sensing unit will continue to detect the liquid level in the liquid storage container.

[0100] Furthermore, the water film generated by the liquid in the liquid storage container may continuously generate electrochemical corrosion due to a weak current. Therefore, if the detection and control unit detects the first liquid level signal output by the liquid sensing unit, it can also send a shutdown control signal to the switching unit to control the switching unit to turn on or off, thereby controlling the circuit between the power supply and the liquid sensing unit to prevent the liquid from corroding the liquid sensing unit.

[0101] It should be noted that when the delay is set for a certain duration, the main motor of the floor cleaning equipment stops working and the circuit between the power supply and the liquid sensing unit is not synchronized.

[0102] Example, Figure 3b This is a schematic diagram of the body of a floor cleaning device provided in one embodiment of this specification, as shown below. Figure 3bAs shown, when the main body of the floor cleaning equipment is upright and the power button on the handle is pressed, the equipment is turned on, but the main motor is not working. When the user tilts the equipment, the detection and control unit controls the main motor to start working, the roller brush rotates under the drive of the roller brush motor, the water pump sprays water from the clean water tank onto the roller brush, and the main motor of the floor cleaning equipment collects wastewater into the wastewater tank. In this state, if the detection and control unit detects a full water signal output by the liquid sensing unit, it controls the main motor to stop working. After the detection and control unit detects the full water signal, it delays for a set time, such as 10 seconds. If the full water signal output by the liquid sensing unit does not change within 10 seconds, it is determined that the full water signal is normal, and a shutdown control signal is output to the switch unit. If the full water signal output by the liquid sensing unit disappears within 10 seconds, and the position of the floor cleaning equipment changes from tilted to upright, it is determined that the full water signal is incorrect, and no shutdown control signal is output to the switch unit. When the position of the equipment changes to upright, the main motor automatically stops working, and the detection and control module can control the floor cleaning equipment to restart working after detecting that the position of the equipment has changed to tilted.

[0103] It should be noted that if the main unit remains tilted, the full water signal will not disappear once it occurs. If the user stands the unit upright when the main motor stops working after the full water signal occurs (for example, to observe whether the sewage tank is truly full), the full water signal can change. Therefore, after the detection control unit detects the full water signal, there is a 10-second delay. If the full water signal disappears within 10 seconds, it indicates that the previous trigger was false. At this time, no shutdown control signal is output to the switch unit, and the user tilts the unit again. The main motor automatically starts working, and the liquid sensing unit continues to monitor whether the liquid level in the liquid storage container has reached the preset level.

[0104] In this embodiment, a delay is set. Upon receiving the first liquid level signal, the detection control unit continues to monitor whether the first liquid level signal output by the liquid sensing unit disappears within a set time period. If it does not disappear, a shutdown control signal is output to the switch unit. This avoids erroneous triggering of the first liquid level signal and accidental shutdown of the circuit between the power supply and the liquid sensing unit, thus improving the accuracy of power control of the liquid sensing unit. Simultaneously, during the set time delay, if the state of the machine changes and the first liquid level signal disappears, no shutdown control signal is output to the switch unit. The liquid sensing unit continues to monitor whether the liquid level in the liquid storage container meets the liquid level requirements. That is, if the first liquid level signal disappears within the set time period, and the user straightens the tilted machine and then tilts it again within the set time period, the cleaning equipment can continue to work normally (the main motor works, and the liquid sensing unit continues to monitor the liquid level), without affecting subsequent use.

[0105] Furthermore, taking the wastewater tank of a floor cleaning device as an example, when the main motor of the floor cleaning device is working, it can collect wastewater from the floor into the wastewater tank. When the detection and control unit detects that the wastewater tank is full through the liquid sensing unit, the detection and control unit can control the main motor to stop working. Therefore, in addition to outputting a shutdown control signal to the switch unit upon receiving the first liquid level signal to control the circuit between the power supply and the liquid sensing unit, the detection and control unit can also detect the working status of the main motor. When the main motor stops working, it outputs a shutdown control signal to the switch unit to control the circuit between the power supply and the liquid sensing unit; and when the main motor restarts working, it can output a conduction control signal to the switch unit to control the circuit between the power supply and the liquid sensing unit.

[0106] In an optional embodiment of this example, the detection control unit is further configured to:

[0107] When the set opening conditions are detected, a conduction control signal is output to the switching unit. The conduction control signal is used to control the circuit between the power supply and the liquid sensing unit.

[0108] It should be noted that the detection control unit can send a shutdown control signal to the switching unit to control the shutdown of the circuit between the power supply and the liquid sensing unit. Therefore, when the liquid sensing unit needs to detect the liquid level in the liquid storage container again, the circuit between the power supply and the liquid sensing unit needs to be re-energized. Thus, in practical applications, when the detection control unit detects that the set opening conditions are met, it can output an on / off control signal to the switching unit to control the re-energization of the circuit between the power supply and the liquid sensing unit, thereby resuming liquid level detection.

[0109] In practical applications, the activation conditions include at least one of the following: the floor cleaning equipment is turned on, the liquid storage container is removed from the floor cleaning equipment, or the floor cleaning equipment enters self-cleaning mode. That is, when the floor cleaning equipment is turned on, for example, when the power button is pressed, the circuit between the power supply and the liquid sensing unit needs to be controlled to detect the liquid level; when the liquid storage container is removed from the floor cleaning equipment (when the liquid storage container is taken off), that is, when the floor cleaning equipment detects that the liquid storage container is no longer in place, it indicates that the user may have cleaned the liquid storage container, and at this time, the circuit between the power supply and the liquid sensing unit needs to be controlled to prepare for the next liquid level detection; when the floor cleaning equipment enters self-cleaning mode (self-cleaning program starts), for example, when the self-cleaning button is pressed or self-cleaning starts automatically, the circuit between the power supply and the liquid sensing unit can be controlled to detect the liquid level in the liquid storage container during the self-cleaning process.

[0110] It should be noted that controlling the switching unit to turn on and off, in order to control the circuit between the power supply and the liquid sensing unit, does not necessarily mean the action of the switching unit from turning on to turning off, that is, it does not necessarily mean the change of the circuit between the power supply and the liquid sensing unit from turning off to turning on. Rather, it means ensuring that the circuit between the power supply and the liquid sensing unit is in a conducting state. If the circuit between the power supply and the liquid sensing unit is already in a conducting state, then this state can be maintained.

[0111] For example, the correspondence between the status of the floor cleaning equipment and the on / off state of the circuit can be shown in Table 1 below: When the floor cleaning equipment is turned on, the circuit is on; when the liquid storage container is detected to be full, the circuit is off (after the last main motor stops working for a preset time, such as 10 seconds); when the liquid storage container is removed from the floor cleaning equipment, the circuit is on; when the floor cleaning equipment enters the self-cleaning mode, the circuit is on.

[0112] Table 1. Correspondence between the status of floor cleaning equipment and circuit on / off states.

[0113]

[0114] Figure 4 This diagram illustrates a circuit schematic of another main control board according to an embodiment of this specification, using an NMOS transistor as an example of a switching component. Figure 4 As shown, the main control board includes a power supply 1, a pull-up resistor R94, a switching unit, a liquid sensing unit, and a detection and control unit. The switching unit includes a control signal input terminal WATER_CTR, a pull-down resistor R111, a first current-limiting resistor R110, and an NMOS transistor Q11. The power supply 1 is connected to the pull-up resistor R94, which is connected to the drain of the NMOS transistor Q11. The source of the NMOS transistor Q11 is grounded, and the gate of the NMOS transistor Q11 is connected to the first current-limiting resistor R110. The first current-limiting resistor R110 is connected to the control signal input terminal WATER_CTR, which is also connected to the pull-down resistor R111, which is grounded.

[0115] The liquid sensing unit includes a conductive component JP20 disposed in a liquid storage container. The conductive component JP20 includes a first conductor 1 and a second conductor 2. The first conductor 1 is connected to a pull-up resistor R94, and the second conductor 2 is grounded. Furthermore, the liquid sensing unit also includes a Zener diode D29, with one end grounded and the other end connected to the first conductor 1.

[0116] The liquid sensing unit also includes a voltage follower U14, a first filter capacitor C89, a second filter capacitor C94, a current-limiting resistor R91, and a signal output terminal AD_V. One end of the first filter capacitor C89 is connected to pin 1 of the voltage follower U14, and the other end is grounded. The pull-up resistor R94 is also connected to pin 1 of the voltage follower U14. Pin 3 of the voltage follower U14 is connected to pin 4, and pins 3 and 4 are connected to the current-limiting resistor R91. Pin 2 of the voltage follower U14 is grounded, and pin 5 is connected to power supply 2. One end of the second filter capacitor C94 is connected to power supply 2, and the other end is grounded. The current-limiting resistor R91 is connected to the signal output terminal AD_V.

[0117] It should be noted that if the conductive component JP20 in the liquid sensing unit is turned on, it will output a first liquid level signal to the detection control unit. This first liquid level signal indicates that the liquid level in the liquid storage container has reached the preset liquid level. At this time, the detection control unit will input a high voltage signal to the control signal input terminal WATER_CTR. The voltage in this high voltage signal is greater than the source voltage setting value, and the NMOS transistor Q11 will be turned on. The current of power supply 1 flows directly into the ground terminal through the NMOS transistor Q11. At this time, the circuit between power supply 1 and conductive component JP20 is turned off, and power supply 1 does not supply power to conductive component JP20. That is, there is no current in conductive component JP20 at this time, and it no longer continues to detect the liquid level in the liquid storage container.

[0118] If the conductive component JP20 in the liquid sensing unit is not turned on, it will output a second liquid level signal to the detection control unit. This second liquid level signal indicates that the liquid level in the liquid storage container has not reached the preset liquid level. At this time, the detection control unit will input a low voltage signal to the control signal input terminal WATER_CTR. Alternatively, when the detection control unit detects that the set opening condition is met, it will input a low voltage signal to the control signal input terminal WATER_CTR. If the voltage in this low voltage signal is not greater than the source voltage, or if the value greater than the source voltage does not meet the set value, then the NMOS transistor Q11 will not be turned on and will be in the cut-off state. The current from power supply 1 cannot flow directly to the ground terminal through the NMOS transistor Q11. At this time, the current from power supply 1 will flow into the conductive component JP20, supplying power to the conductive component JP20. That is, the circuit between power supply 1 and the conductive component JP20 is connected. At this time, the signal output terminal AD_V outputs a signal indicating the liquid level signal detected by the conductive component JP20.

[0119] When NMOS transistor Q11 is in the off state and the circuit between power supply 1 and conductive component JP20 is in the on state, current from power supply 1 can flow into conductive component JP20, which can detect the liquid level in the liquid storage container. Specifically, if the liquid level in the liquid storage container meets the liquid level requirement for conductive component JP20 to conduct, conductive component JP20 conducts, acting as a resistor and diverting voltage from power supply 1. At this time, the signal output terminal AD_V will output a first liquid level signal, which can be a first voltage, lower than the power supply 1 voltage. If the liquid level in the liquid storage container does not meet the liquid level requirement for conductive component JP20 to conduct, conductive component JP20 does not conduct, and the corresponding branch of conductive component JP20 is open-circuited. At this time, the signal output terminal AD_V outputs a second liquid level signal, which can be a second voltage, close to the power supply 1 voltage.

[0120] Figure 5 This diagram illustrates a circuit schematic of another main control board according to an embodiment of this specification, using a transistor as an example of a switching component. Figure 5 As shown, the main control board includes a power supply 1, a pull-up resistor R94, a switching unit, a liquid sensing unit, and a detection and control unit. The switching unit includes a control signal input terminal WATER_CTR, a pull-down resistor R111, a first current-limiting resistor R110, and a transistor Q11. The power supply 1 is connected to the pull-up resistor R94, which is connected to the collector of transistor Q11. The emitter of transistor Q11 is grounded, and the base of transistor Q11 is connected to the first current-limiting resistor R110. The first current-limiting resistor R110 is connected to the control signal input terminal WATER_CTR, which is also connected to the pull-down resistor R111, which is grounded. The remaining connections in the main control board are the same as described above. Figure 4 same.

[0121] It should be noted that the liquid level detection and switching unit control logic when the switching component is a transistor is the same as when the switching component is an NMOS transistor, and will not be repeated here.

[0122] The floor cleaning equipment provided in this specification includes a switch unit added between the power supply and the liquid sensing unit on the main control board. The detection and control unit can control the switching unit to turn on and off based on the liquid level information detected by the liquid sensing unit, thereby controlling the continuity of the circuit between the power supply and the liquid sensing unit. This allows for flexible control of the circuit between the power supply and the liquid sensing unit. When there is no need for liquid level detection, the circuit between the power supply and the liquid sensing unit is disconnected, i.e., the power supply to the liquid sensing unit is turned off. When it is necessary to detect the liquid level in the liquid storage device again, the circuit between the power supply and the liquid sensing unit is turned on again. This avoids corrosion of components caused by prolonged continuity of the liquid sensing unit, effectively improving the corrosion situation of the liquid sensing unit, extending its service life, reducing maintenance frequency, and thus extending the service life of the floor cleaning equipment.

[0123] Figure 6 A flowchart illustrating a control method for a floor cleaning device according to an embodiment of this specification is shown. The floor cleaning device includes a liquid storage container and a main control board. The main control board includes a power supply, a switching unit, a liquid sensing unit, and a detection and control unit. The switching unit is located between the power supply and the liquid sensing unit, and the liquid sensing unit and the detection and control unit are connected. Figure 6 As shown, the control methods include:

[0124] Step 602: The liquid sensing unit detects the liquid level information in the liquid storage container and outputs the liquid level information to the detection control unit.

[0125] In one optional embodiment of this invention, the liquid sensing unit includes a conductive component disposed in the liquid storage container; the liquid sensing unit detects the liquid level information in the liquid storage container and outputs the liquid level information to the detection control unit, including:

[0126] When the conductive component is turned on, the liquid sensing unit outputs a first liquid level signal to the detection and control unit, and when the conductive component is turned off, it outputs a second liquid level signal to the detection and control unit.

[0127] The first liquid level signal is used to indicate that the liquid level in the liquid storage container has reached the preset liquid level, and the second liquid level signal is used to indicate that the liquid level in the liquid storage container has not reached the preset liquid level.

[0128] Step 604: The detection and control unit outputs a control signal to the switching unit based on the liquid level information.

[0129] In one optional embodiment of this invention, the detection control unit outputs a control signal to the switching unit based on the liquid level information, including:

[0130] Upon receiving the first liquid level signal, the detection control unit outputs a shutdown control signal to the switch unit. This shutdown control signal is used to control the circuit between the power supply and the liquid sensing unit.

[0131] In an optional embodiment of this invention, upon receiving the first liquid level signal, the detection control unit outputs a shutdown control signal to the switching unit, including:

[0132] Upon receiving the first liquid level signal, the detection control unit monitors whether the first liquid level signal output by the liquid sensing unit disappears within a set time period. If the first liquid level signal does not disappear, it outputs a shutdown control signal to the switching unit.

[0133] In an optional embodiment of this invention, after monitoring whether the first liquid level signal output by the liquid sensing unit disappears within a set time period, the method further includes:

[0134] If the first liquid level signal disappears and a change in the body status of the ground cleaning equipment is detected, no shutdown control signal will be output to the switch unit.

[0135] If the machine is detected to be tilted, the ground cleaning equipment will be restarted.

[0136] In an optional embodiment of this invention, the control method for the floor cleaning equipment further includes:

[0137] When the detection control unit detects that the set opening conditions are met, it outputs a conduction control signal to the switch unit. The conduction control signal is used to control the circuit between the power supply and the liquid sensing unit.

[0138] In one optional implementation of this embodiment, the activation conditions include at least one of the following: the floor cleaning equipment is turned on, the liquid storage container is removed from the floor cleaning equipment, or the floor cleaning equipment enters self-cleaning mode.

[0139] Step 606: The switching unit controls the connection and disconnection of the circuit between the power supply and the liquid sensing unit based on the received control signal.

[0140] The control method for the floor cleaning equipment provided in this specification allows for flexible control of the circuit between the power supply and the liquid sensing unit. When there is no need for liquid level detection, the circuit between the power supply and the liquid sensing unit is disconnected, i.e., the power supply to the liquid sensing unit is turned off. When it is necessary to detect the liquid level in the liquid storage device again, the circuit between the power supply and the liquid sensing unit is reconnected. This avoids corrosion of components caused by prolonged conduction of the liquid sensing unit, effectively improves the corrosion situation of the liquid sensing unit, extends the service life of the liquid sensing unit, reduces the number of maintenance times, and thus extends the service life of the floor cleaning equipment.

[0141] The above is an illustrative scheme of a control method for a floor cleaning device according to this embodiment. It should be noted that the technical solution of this control method for the floor cleaning device belongs to the same concept as the technical solution of the floor cleaning device described above. Details not described in detail in the technical solution of the control method for the floor cleaning device can be found in the description of the technical solution of the floor cleaning device described above.

[0142] Figure 7 A flowchart is shown illustrating a control method for another floor cleaning device according to an embodiment of this specification. The floor cleaning device includes a liquid storage container, such as... Figure 7 The control method shown includes:

[0143] Step 702: Obtain information that the liquid in the liquid storage container has reached the preset liquid level.

[0144] Step 704: Based on this information, turn off the power supply to the liquid sensing unit.

[0145] In an optional implementation of this embodiment, after shutting off the power supply to the liquid sensing unit based on the information, the method further includes:

[0146] When the set activation conditions are met, the power supply to the liquid sensing unit is turned on. The set activation conditions include at least one of the following: the floor cleaning equipment is turned on, the liquid storage container is removed from the floor cleaning equipment, or the floor cleaning equipment enters self-cleaning mode.

[0147] It should be noted that the floor cleaning equipment may include a liquid storage container and a main control board. The main control board may include a power supply and a liquid sensing unit. The power supply powers the liquid sensing unit so that the liquid sensing unit can detect the liquid level information in the liquid storage container. However, the liquid sensing unit may corrode if it is powered on for a long time.

[0148] In the control method of the floor cleaning equipment provided in the embodiments of this specification, when the detection control unit obtains information that the liquid in the liquid storage container has reached the preset liquid level, it indicates that the liquid storage container is full and needs to be processed. There is no need to continue liquid level detection. Therefore, when the detection control unit obtains information that the liquid in the liquid storage container has reached the preset liquid level, it can turn off the power supply of the liquid sensing unit based on this information. When it is necessary to detect the liquid level in the liquid storage device again, the power supply is turned on again. This avoids the corrosion of components caused by the liquid sensing unit being turned on for a long time, effectively improves the corrosion of the liquid sensing unit, extends the service life of the liquid sensing unit, reduces the number of maintenance, and thus extends the service life of the floor cleaning equipment.

[0149] Figure 8A flowchart illustrating a control method for another floor cleaning device according to an embodiment of this specification is shown. The method is applied to the main control board of the floor cleaning device. The main control board includes a power supply, a switching unit, a liquid sensing unit, and a detection and control unit. The switching unit is located between the power supply and the liquid sensing unit, and the liquid sensing unit and the detection and control unit are connected. Figure 8 As shown, the control methods include:

[0150] Step 802: Monitor the operating status of the main motor of the ground cleaning equipment.

[0151] It should be noted that when the liquid sensing unit detects that the liquid level in the liquid storage container meets the liquid level requirements, the detection control unit can control the main motor of the floor cleaning equipment to stop working. That is, the working status of the main motor can also reflect the liquid level in the liquid storage container. Therefore, the detection control module can monitor the working status of the main motor of the floor cleaning equipment, and subsequently control the on / off of the circuit between the power supply and the liquid sensing unit based on the working status of the main motor.

[0152] Step 804: When the main motor is detected to be in a stopped state, a shutdown control signal is output to the switching unit. The shutdown control signal is used to control the circuit between the power supply and the liquid sensing unit.

[0153] It should be noted that if the main motor is detected to be stopped, it means that the liquid level in the liquid storage container may have reached the preset level. Therefore, the detection control unit can output a shutdown control signal to the switch unit to shut off the circuit between the power supply and the liquid sensing unit.

[0154] In an optional embodiment of this invention, after outputting the turn-off control signal to the switching unit, the method further includes:

[0155] When the main motor is detected to have returned to normal operation, a conduction control signal is output to the switching unit. This conduction control signal is used to control the conduction of the circuit between the power supply and the liquid sensing unit.

[0156] It should be noted that when the main motor's working status is detected to have returned to normal, it means that the detection of the liquid level in the liquid storage container needs to be restarted, and the liquid sensing unit needs to be powered. Therefore, the detection control unit can output a conduction control signal to the switching unit to conduct the circuit between the power supply and the liquid sensing unit.

[0157] The control method for the floor cleaning equipment provided in this specification can flexibly control the connection and disconnection of the circuit between the power supply and the liquid sensing unit based on the working status of the main motor of the floor cleaning equipment. When the main motor stops working, the circuit between the power supply and the liquid sensing unit is disconnected, that is, the power supply to the liquid sensing unit is disconnected. When the main motor resumes normal operation, the circuit between the power supply and the liquid sensing unit is reconnected. This avoids corrosion of components caused by prolonged conduction of the liquid sensing unit, effectively improves the corrosion of the liquid sensing unit, extends the service life of the liquid sensing unit, reduces the number of maintenance times, and thus extends the service life of the floor cleaning equipment.

[0158] The above is an illustrative scheme of a control method for a floor cleaning device according to this embodiment. It should be noted that the technical solution of this control method for the floor cleaning device belongs to the same concept as the technical solution of the floor cleaning device described above. Details not described in detail in the technical solution of the control method for the floor cleaning device can be found in the description of the technical solution of the floor cleaning device described above.

[0159] Figure 9 This diagram illustrates a structural block diagram of a control device for a floor cleaning apparatus according to an embodiment of this specification. The floor cleaning apparatus includes a liquid storage container, such as... Figure 9 As shown, the control device includes:

[0160] The acquisition module 902 is configured to acquire information that the liquid in the liquid storage container has reached a preset liquid level;

[0161] The shutdown module 904 is configured to shut off the power supply to the liquid sensing unit based on the information.

[0162] Optionally, the control device further includes a conduction module configured to:

[0163] When the set activation conditions are met, the power supply to the liquid sensing unit is turned on. The set activation conditions include at least one of the following: the floor cleaning equipment is turned on, the liquid storage container is removed from the floor cleaning equipment, or the floor cleaning equipment enters self-cleaning mode.

[0164] In the control device of the floor cleaning equipment provided in the embodiments of this specification, when the detection control unit obtains information that the liquid in the liquid storage container has reached the preset liquid level, it indicates that the liquid storage container is full and needs to be processed. There is no need to continue liquid level detection. Therefore, when the detection control unit obtains information that the liquid in the liquid storage container has reached the preset liquid level, it can turn off the power supply to the liquid sensing unit based on this information. When it is necessary to detect the liquid level in the liquid storage device again, the power supply will be turned on again. This avoids the corrosion of components caused by the liquid sensing unit being turned on for a long time, effectively improves the corrosion of the liquid sensing unit, extends the service life of the liquid sensing unit, reduces the number of maintenance, and thus extends the service life of the floor cleaning equipment.

[0165] The above is a schematic diagram of a control device for a floor cleaning equipment according to this embodiment. It should be noted that the technical solution of this control device belongs to the same concept as the technical solution of the floor cleaning equipment described above. Details not described in detail in the technical solution of the control device can be found in the description of the technical solution of the floor cleaning equipment described above.

[0166] Figure 10 This diagram illustrates a structural block diagram of a control device for a floor cleaning equipment according to an embodiment of this specification. The main control board of the floor cleaning equipment includes a power supply, a switching unit, a liquid sensing unit, and a detection and control unit. The switching unit is located between the power supply and the liquid sensing unit, and the liquid sensing unit and the detection and control unit are connected. Figure 10 As shown, the control device includes:

[0167] Monitoring module 1002 is configured to monitor the operating status of the main motor of the ground cleaning equipment;

[0168] The first output module 1004 is configured to output a shutdown control signal to the switching unit when the main motor is detected to be in a stopped working state. The shutdown control signal is used to control the circuit between the power supply and the liquid sensing unit.

[0169] Optionally, the device further includes a second output module configured to:

[0170] When the main motor is detected to have returned to normal operation, a conduction control signal is output to the switching unit. This conduction control signal is used to control the conduction of the circuit between the power supply and the liquid sensing unit.

[0171] The control device for the floor cleaning equipment provided in this specification can flexibly control the connection and disconnection of the circuit between the power supply and the liquid sensing unit based on the working status of the main motor of the floor cleaning equipment. When the main motor stops working, the circuit between the power supply and the liquid sensing unit is disconnected, that is, the power supply to the liquid sensing unit is disconnected. When the main motor resumes normal operation, the circuit between the power supply and the liquid sensing unit is reconnected. This avoids corrosion of components caused by prolonged conduction of the liquid sensing unit, effectively improves the corrosion of the liquid sensing unit, extends the service life of the liquid sensing unit, reduces the number of maintenance times, and thus extends the service life of the floor cleaning equipment.

[0172] The above is an illustrative scheme of an object management device according to this embodiment. It should be noted that the technical solution of this object management device and the technical solution of the object management method described above belong to the same concept. For details not described in detail in the technical solution of the object management device, please refer to the description of the technical solution of the object management method described above.

[0173] The above is a schematic diagram of a control device for a floor cleaning equipment according to this embodiment. It should be noted that the technical solution of this control device belongs to the same concept as the technical solution of the floor cleaning equipment described above. Details not described in detail in the technical solution of the control device can be found in the description of the technical solution of the floor cleaning equipment described above.

[0174] 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.

[0175] Computer instructions include computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. Computer-readable media can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0176] 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.

[0177] 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.

[0178] 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 floor cleaning apparatus characterized by, The ground cleaning equipment comprises a liquid storage container and a main control board, the main control board comprises a power supply, a switch unit, a liquid sensing unit and a detection control unit; the switch unit is located between the power supply and the liquid sensing unit, and the liquid sensing unit and the detection control unit are connected; The liquid sensing unit is configured to output a first liquid level signal to the detection control unit when the liquid level in the liquid storage container reaches a preset liquid level, and output a second liquid level signal to the detection control unit when the liquid level in the liquid storage container does not reach the preset liquid level; the detection control unit is configured to output an off control signal to the switch unit when the first liquid level signal is received, and output an on control signal to the switch unit when the second liquid level signal is received; and the switch unit is configured to control the circuit between the power supply and the liquid sensing unit to be in an off state when the off control signal is received, and control the circuit between the power supply and the liquid sensing unit to be in an on state when the on control signal is received.

2. The floor cleaning apparatus of claim 1, wherein, The liquid sensing unit comprises a conductive assembly arranged in the liquid storage container, the conductive assembly comprises a first conductor and a second conductor, the first conductor is connected to the power supply, and the second conductor is grounded. The conductive assembly is configured to detect the liquid level information of the liquid in the liquid storage container, and convert the liquid level information into an electrical signal and output the electrical signal to the detection control unit.

3. The floor cleaning apparatus of claim 2, wherein, The circuit between the power supply and the liquid sensing unit is in an on state; The liquid sensing unit is configured to output a first liquid level signal to the detection control unit when the conductive assembly is on, and output a second liquid level signal to the detection control unit when the conductive assembly is not on.

4. The floor cleaning apparatus of claim 3, wherein, The detection control unit is further configured to: monitor whether the first liquid level signal output by the liquid sensing unit disappears within a set time period when the first liquid level signal is received, and output an off control signal to the switch unit if the first liquid level signal does not disappear.

5. The floor cleaning apparatus of any one of claims 1-4, wherein, The detection control unit is further configured to: output an on control signal to the switch unit when it is detected that a set on condition is met, wherein the on control signal is used to control the circuit between the power supply and the liquid sensing unit to be on.

6. The floor cleaning apparatus of claim 5, wherein, The set on condition comprises at least one of the following: the ground cleaning equipment is powered on, the liquid storage container is removed from the ground cleaning equipment, and the ground cleaning equipment enters a self-cleaning mode.

7. The floor cleaning apparatus of any one of claims 1-4, wherein, The switch unit comprises a switch component and a control signal input end, the control signal input end and the switch component are connected, and the control signal input end is configured to receive the control signal output by the detection control unit.

8. The floor cleaning apparatus of claim 7, wherein, The switch component is an NMOS tube, and the switch unit further comprises a first current limiting resistor and a pull-down resistor. The drain electrode of the NMOS transistor is connected with the power supply, the source electrode of the NMOS transistor is grounded, the gate electrode of the NMOS transistor is connected with the first current-limiting resistor, the first current-limiting resistor is connected with the control signal input end, and the control signal input end is also connected with the pull-down resistor, and the pull-down resistor is grounded.

9. A control method of a floor cleaning apparatus, characterized by, The ground cleaning equipment comprises a liquid storage container and a main control board, the main control board comprises a power supply, a switch unit, a liquid sensing unit and a detection control unit, the switch unit is located between the power supply and the liquid sensing unit, and the liquid sensing unit and the detection control unit are connected; the control method comprises: The liquid sensing unit outputs a first liquid level signal to the detection control unit when the liquid level in the liquid storage container reaches a preset liquid level, and outputs a second liquid level signal to the detection control unit when the liquid level in the liquid storage container does not reach the preset liquid level; The detection control unit outputs an off control signal to the switch unit when receiving the first liquid level signal, and outputs an on control signal to the switch unit when receiving the second liquid level signal; The switch unit controls the circuit between the power supply and the liquid sensing unit to be in an off state when receiving the off control signal, and controls the circuit between the power supply and the liquid sensing unit to be in an on state when receiving the on control signal.

10. The control method of the floor cleaning apparatus according to claim 9, characterized by, The liquid sensing unit comprises a conductive component arranged in the liquid storage container; the method comprises: The liquid sensing unit outputs a first liquid level signal to the detection control unit when the conductive component is on, and outputs a second liquid level signal to the detection control unit when the conductive component is not on.

11. The control method of the floor cleaning apparatus according to claim 9, characterized by, The detection control unit outputs an off control signal to the switch unit when receiving the first liquid level signal, comprising: The detection control unit monitors whether the first liquid level signal output by the liquid sensing unit disappears within a set time period when receiving the first liquid level signal, and outputs the off control signal to the switch unit if the first liquid level signal does not disappear.

12. The control method of the floor cleaning device according to claim 11, characterized by, After monitoring whether the first liquid level signal output by the liquid sensing unit disappears within the set time period, further comprising: If the first liquid level signal disappears and the state of the body of the ground cleaning equipment is monitored to change, the off control signal is not output to the switch unit; In the case that the state of the body is monitored to change to an inclined state, the ground cleaning equipment is controlled to start working again.

13. A control method of a floor cleaning device according to any one of claims 9-12, characterized in that, The method further comprises: The detection control unit outputs an on control signal to the switch unit when detecting that a set opening condition is met, wherein the on control signal is used to control the circuit between the power supply and the liquid sensing unit to be on.

14. The control method of the floor cleaning device according to claim 13, characterized by, The set opening condition comprises at least one of the following: the ground cleaning equipment is powered on, the liquid storage container is removed from the ground cleaning equipment, and the ground cleaning equipment enters a self-cleaning mode.

15. A control method of a floor cleaning apparatus applied to the floor cleaning apparatus according to any one of claims 1 to 8, the floor cleaning apparatus comprising a liquid storage container, characterized in that, The control method comprises: In a case where a first liquid level signal indicating that the liquid in the liquid storage container reaches a preset liquid level is acquired, the power supply of the liquid sensing unit is turned off; In a case where a second liquid level signal indicating that the liquid in the liquid storage container does not reach the preset liquid level is acquired, the power supply of the liquid sensing unit is turned on.

16. The control method of the floor cleaning device according to claim 15, characterized by, After the power supply of the liquid sensing unit is turned off, the method further includes: In a case where a set-on condition is met, the power supply of the liquid sensing unit is turned on, and the set-on condition includes at least one of the following: the ground cleaning equipment is powered on, the liquid storage container is removed from the ground cleaning equipment, and the ground cleaning equipment enters a self-cleaning mode.

17. A control method of a floor cleaning apparatus, applied to the floor cleaning apparatus according to any one of claims 1 to 8, characterized in that, A main control board applied to the ground cleaning equipment, the main control board including a power supply, a switching unit, a liquid sensing unit, and a detection control unit, the switching unit being located between the power supply and the liquid sensing unit, and the liquid sensing unit and the detection control unit being connected; the control method including: Monitoring a working state of a main motor of the ground cleaning equipment; In a case where the working state of the main motor is monitored to be stopped working, a turn-off control signal is output to the switching unit, and the turn-off control signal is used to control a circuit between the power supply and the liquid sensing unit to be turned off.

18. The control method of the floor cleaning apparatus according to claim 17, wherein, After the turn-off control signal is output to the switching unit, the method further includes: In a case where the working state of the main motor is monitored to return to normal working, a turn-on control signal is output to the switching unit, and the turn-on control signal is used to control the circuit between the power supply and the liquid sensing unit to be turned on.

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