Liquid level detection method, device, equipment, program product and system for cleaning equipment

Abstract

The present invention provides a liquid level detection method, device, equipment, program product and system for a cleaning device. The liquid level detection method includes: obtaining the detection voltage of a preset detection point in a water storage device at each moment; determining the liquid state in the water storage device based on the detection voltage value: if it is determined that the device is in a preset first liquid state, there is no liquid in the water storage device, and a liquid addition prompt is given; if it is determined that the device is in a preset second liquid state, the liquid composition in the water storage device is analyzed, and by monitoring the change of the detection voltage value in the water storage device, the remaining amount of liquid in the water storage device at each moment is obtained; when the remaining amount of liquid is lower than a preset remaining threshold, a liquid addition instruction is output. The solution of the present invention can detect whether there is liquid in the water storage device, the composition of the existing liquid and the remaining amount of the liquid, broadens the detection range, and can be compatible with the conductivity of various liquids.

Description

Technical Field

[0001] The present invention relates to the field of intelligent cleaning, and particularly to a liquid level detection method, device, equipment, program product and system for a cleaning device. Background Art

[0002] With the continuous improvement of cleaning requirements and the continuous improvement of cleaning technology, various floor scrubbers have emerged in the field of cleaning and maintenance of various hard floors such as floors, tiles, and marble. The working principle is generally that a motor is equipped at the front of the machine to drive a roller brush to rotate to clean the ground. While the roller brush is rotating, clear water and cleaning liquid flow out from the roller brush to achieve washing and brushing at the same time, and then the residual sewage after the roller brush is cleaned is sucked through the brush strip and the vacuum port.

[0003] During the cleaning process of the floor scrubber, a large amount of clear water and cleaning liquid for improving the cleaning effect are required. Therefore, the floor scrubber is generally equipped with a special water storage device for storing water and cleaning liquid. However, due to the complex components in the water storage device, especially the cleaning liquid will produce foam and adhere to the inner wall, which is extremely easy to interfere with the liquid level detection. Therefore, it is very difficult to detect the remaining amount of liquid in the water storage device.

[0004] Therefore, there is an urgent need for a detection scheme that can detect the remaining amount of liquid in the water storage device to solve the above problems. Summary of the Invention

[0005] In view of this, the present invention provides a liquid level detection method, device, equipment, program product and system for a cleaning device, and the specific solutions are as follows:

[0006] In a first aspect, the present invention provides a liquid level detection method for a cleaning device, which is applicable to a cleaning device including a water storage device;

[0007] The liquid level detection method includes the following steps:

[0008] Obtain the detection voltage values of a preset detection point in the water storage device at each moment;

[0009] Based on the detection voltage values, determine the liquid state in the water storage device:

[0010] If it is determined that the liquid is in a preset first liquid state, output a liquid addition instruction;

[0011] If it is determined that the liquid is in a preset second liquid state, analyze the liquid components in the water storage device, and monitor the change of the detection voltage value in the water storage device to obtain the remaining amount of liquid in the water storage device at each moment;

[0012] When the remaining amount of liquid in the second liquid state is lower than a preset remaining threshold, output a liquid addition instruction.

[0013] In a specific embodiment, "determining the liquid state in the water storage device based on the detected voltage value" at least includes:

[0014] Analyzing the relationships between the detected voltage value and a preset liquid voltage value range and a preset non - liquid voltage value range respectively; wherein, the liquid voltage value range is less than the non - liquid voltage value range;

[0015] If the detected voltage value is within the non - liquid voltage value range, it is determined that the first liquid state is in place;

[0016] If the detected voltage value is within the liquid voltage value range, it is determined that the second liquid state is in place.

[0017] In a specific embodiment, "analyzing the liquid components in the water storage device" at least includes:

[0018] When it is determined that the second liquid state is in place, judging the voltage value range where the detected voltage value is located:

[0019] If the detected voltage value is within a preset first voltage value range, the liquid component in the water storage device is the first liquid;

[0020] If the detected voltage value is within a preset second voltage value range, the liquid component in the water storage device is the second liquid;

[0021] Wherein, the first voltage value range is lower than the second voltage value range, and the second liquid includes the first liquid and a cleaning liquid for enhancing the cleaning effect.

[0022] In a specific embodiment, the first voltage value range includes a first range and a second range that increase in sequence,

[0023] If the detected voltage value is within the first range, the liquid remaining amount of the first liquid is not lower than the remaining threshold;

[0024] If the detected voltage value is within the second range, the liquid remaining amount of the first liquid is lower than the remaining threshold.

[0025] In a specific embodiment, the second voltage value range includes a third range, a fourth range, and a fifth range that increase in sequence;

[0026] If the detected voltage value is within the third range, the liquid remaining amount of the second liquid is not lower than the remaining threshold;

[0027] If the detected voltage value is within the fourth range, the second liquid exists in the water storage device, and the liquid remaining amount of the second liquid is lower than the remaining threshold;

[0028] If the detected voltage value is within the fifth range, the second liquid in the water storage device is consumed completely.

[0029] In a specific embodiment, the process of obtaining the detected voltage at least includes:

[0030] At a certain moment, when the voltage value at the detection point changes and remains stable within a preset time period after that moment, the changed voltage value is taken as the detected voltage value of the detection point at that moment.

[0031] In a specific embodiment, the detected voltage is obtained through a preset detection module;

[0032] The detection module includes a voltage dividing circuit and a detection circuit that are electrically connected;

[0033] The detection point is located in the detection circuit, and a voltage acquisition point is set in the detection circuit;

[0034] The voltage acquisition point is connected to the detection point, and the voltage value of the voltage acquisition point is the detected voltage value of the detection point.

[0035] In a specific embodiment, a voltage change rate threshold is set, and the voltage change rate threshold is the change amount of the detected voltage value within a specific time;

[0036] If within a certain time period, the growth rate of the detected voltage value exceeds the voltage change rate threshold and the increased voltage value remains stable within a preset time period, it is determined that the remaining amount of the liquid in the second liquid state is lower than the preset remaining threshold, and a liquid addition instruction is output to prompt liquid addition.

[0037] In a second aspect, the present invention provides a liquid level detection device for a cleaning device, which is applicable to a cleaning device including a water storage device;

[0038] The liquid level detection device includes:

[0039] An information acquisition module, configured to obtain the detected voltage values of a preset detection point in the water storage device at each moment;

[0040] A liquid voltage value determination module, configured to determine the liquid state in the water storage device based on the detected voltage value:

[0041] If it is determined to be in a preset first liquid state, a liquid addition instruction is output;

[0042] If it is determined to be in a preset second liquid state, the liquid component in the water storage device is analyzed, and by monitoring the change of the detected voltage value in the water storage device, the remaining amount of the liquid in the water storage device at each moment is obtained;

[0043] When the remaining amount of the liquid in the second liquid state is lower than a preset remaining threshold, a liquid adding instruction is output.

[0044] In a specific embodiment, the liquid voltage value determination module at least includes:

[0045] A liquid state determination module, configured to analyze the relationships between the detected voltage value and a preset liquid voltage value range and a preset non-liquid voltage value range respectively, and the liquid voltage value range is smaller than the non-liquid voltage value range; if the detected voltage value is within the non-liquid voltage value range, it is determined to be in the first liquid state; if the detected voltage value is within the liquid voltage value range, it is determined to be in the second liquid state;

[0046] A liquid component determination module, when it is determined to be in the second liquid state, is configured to determine the voltage value range where the detected voltage value is located: if the detected voltage value is within a preset first voltage value range, the liquid component in the water storage device is the first liquid; if the detected voltage value is within a preset second voltage value range, the liquid component in the water storage device is the second liquid; wherein, the first voltage value range is lower than the second voltage value range, and the second liquid includes the first liquid and a cleaning liquid for improving the cleaning effect;

[0047] A liquid remaining amount determination module, configured to, after analyzing the liquid component, determine the voltage value range where the detected voltage value is located, and further obtain the remaining amount of the liquid in the water storage device.

[0048] In a specific embodiment, the liquid level detection device further includes:

[0049] A terminal, provided with a display module and an alarm module;

[0050] The display module is configured to display the liquid component, the remaining amount of the liquid in the water storage device, and the detected voltage of the detection point;

[0051] The alarm module is configured to give an alarm to prompt liquid addition when the remaining amount of the liquid in the second liquid state is lower than a preset remaining threshold and when it is determined to be in the first liquid state.

[0052] In a third aspect, the present invention provides a computer device, and the computer device includes:

[0053] One or more processors;

[0054] A memory, configured to store one or more programs;

[0055] When the one or more programs are executed by the one or more processors, the one or more processors implement a method for detecting the liquid level of a cleaning device as described in the first aspect above or any possible implementation manner thereof.

[0056] In a fourth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, it implements a method for detecting the liquid level of a cleaning device as described in the first aspect above or any possible implementation manner thereof.

[0057] In a fifth aspect, the present invention provides a computer program product, including executable instructions, which are used to implement a method for detecting the liquid level of a cleaning device as described in the first aspect above or any possible implementation manner thereof when executed by a processor.

[0058] In a sixth aspect, the present invention further provides a liquid level detection system, including the liquid level detection device described in the second aspect or any possible implementation manner thereof, or including a computer device described in the first aspect or any possible implementation manner thereof, or including the computer program product described in the first aspect or any possible implementation manner thereof, or including a computer-readable storage medium described in the first aspect or any possible implementation manner thereof.

[0059] Advantageous effects:

[0060] The present invention provides a method, device, equipment, program product and system for detecting the liquid level of a cleaning device. By monitoring and analyzing the voltage at the detection point in the water storage device, it is possible to detect whether there is liquid in the water storage device, the composition of the liquid present, and the remaining amount of the liquid, broadening the detection range and being able to be compatible with the conductivity of various liquids.

[0061] Based on the influence of the presence or absence of liquid on the detected voltage value, by analyzing the liquid state in which the detected voltage value in the water storage device is located, it is further possible to determine whether there is liquid in the water storage device, realizing the detection of the presence or absence of liquid.

[0062] For the complex liquid composition in the water storage device, the liquid level detection method can accurately determine the corresponding liquid composition according to the voltage value range, and prompt to add the corresponding liquid according to different liquid compositions.

[0063] For the interference of residual cleaning liquid and foam on the detection of the remaining liquid amount, the liquid level detection method reasonably divides the corresponding voltage range according to the range of the detected voltage value in this state, and can accurately identify this state by analyzing the voltage range in which the detected voltage value is located, and prompt the user to add liquid.

[0064] The liquid level detection device of a cleaning device according to the present invention systematizes the liquid level detection method of the cleaning device, making it more practical.

[0065] A computer device of the present invention applies a liquid level detection method of a cleaning device to a specific computer device, stores the method in a memory, and when an actuator executes the memory, the method will be run to perform liquid level detection.

[0066] A computer-readable storage medium of the present invention applies a liquid level detection method of a cleaning device to a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the steps of the liquid level detection method provided by the present invention are implemented, which is simple, fast, easy to store, and not easy to lose.

[0067] A computer program product of the present invention applies a liquid level detection method of a cleaning device to a computer program product, which is convenient to execute. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 is a flowchart of the liquid level detection method proposed by an embodiment of the present invention;

[0069] Figure 2 is a schematic diagram of the principle of the liquid level detection method proposed by an embodiment of the present invention;

[0070] Figure 3 is a schematic diagram of the circuit of the detection module proposed by an embodiment of the present invention;

[0071] Figure 4 is a schematic diagram of the structure of the liquid level detection device proposed by an embodiment of the present invention.

[0072] Reference numerals: 1 - information acquisition module; 2 - liquid voltage value determination module; 3 - terminal; 21 - liquid state determination module; 22 - liquid component determination module; 23 - liquid residue determination module; 31 - display module; 32 - alarm module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0073] In the following, various embodiments disclosed by the present invention will be described more comprehensively. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention disclosed herein to the specific embodiments disclosed herein, but the present invention should be understood to cover all adjustments, equivalents, and / or alternative solutions falling within the spirit and scope of the various embodiments of the present invention disclosed herein.

[0074] The clear water of the present invention includes various waters commonly used in cleaning devices, such as tap water, etc.

[0075] It can be understood that, on the one hand, classified by the application type of the cleaning device, the cleaning device includes but is not limited to a handheld floor washer, a mopping robot, and may also be a dishwasher, a car washing device, etc. It can be foreseen that this technical solution can be applied to related devices having a water storage device.

[0076] On the other hand, from the analysis of the technical solution, the cleaning device of the present invention at least includes: a liquid level detector provided with detection points, a main control chip electrically connected to the liquid level detector, and an alarm module electrically connected to the main control chip.

[0077] Among them, the liquid level detector provided with detection points mainly functions to collect relevant data information, including but not limited to information such as liquid level values. It can be divided into contact type liquid level sensors and non-contact type liquid level sensors. The contact type includes single flange static pressure / double flange differential pressure liquid level transmitters, floating ball liquid level transmitters, magnetic liquid level transmitters, submersible liquid level transmitters, electric internal floating ball liquid level transmitters, electric floating drum liquid level transmitters, capacitive liquid level transmitters, magnetostrictive liquid level transmitters, servo liquid level transmitters, etc. The non-contact type is divided into ultrasonic liquid level transmitters, radar liquid level transmitters, etc.

[0078] The main control chip is used to receive the detected voltage value, analyze the detected voltage value, process the detected voltage value and form relevant execution instructions. For example, a main control chip such as a single-chip microcomputer of the STM32 model. Through the main control chip, the detected voltage value can be accurately analyzed to obtain the corresponding liquid level information and realize liquid level detection.

[0079] The alarm module is mainly used to realize human-computer interaction, communicate the relevant execution instructions transmitted by the main control chip with the user, and it includes but not limited to voice prompts, display screen text prompts, display screen graphic prompts, etc., and can also be the mutual application of multiple prompts.

[0080] In the present invention, by way of example, only a hand floor washer is adopted as a relevant embodiment to explain the relevant technical solutions.

[0081] Embodiment 1

[0082] Embodiment 1 of the present invention discloses a liquid level detection method for a cleaning device, which broadens the range of liquid level detection in the water storage device, can be compatible with cleaning liquid and clean water, and monitors the change of liquid conductivity. The specific process of the liquid level detection method is as shown in the attached Figure 1 figure.

[0083] A liquid level detection method for a cleaning device is applicable to a cleaning device including a water storage device. A special detection module is arranged inside the water storage device, which can monitor the change of conductivity in the water storage device.

[0084] The liquid level detection method includes the following steps:

[0085] 101. Obtain the detected voltage values of preset detection points in the water storage device at each moment;

[0086] 102. Determine the liquid state in the water storage device based on the detected voltage value:

[0087] 103. If it is determined that the preset first liquid state is reached, a liquid filling instruction is output.

[0088] 104. If it is determined that the preset second liquid state is reached, analyze the liquid composition in the water storage device, and obtain the liquid consumption situation by monitoring the change of the detected voltage value in the water storage device.

[0089] 105. Obtain the remaining liquid amount in the water storage device at each moment. When the remaining liquid amount in the second liquid state is lower than the preset remaining threshold, output a liquid filling instruction.

[0090] In this embodiment, a specific alarm module can be used to output the liquid filling instruction, enabling the user to fill the liquid in the water storage device according to the liquid filling instruction.

[0091] In the prior art, the floor washer can only detect whether there is liquid according to the resistance value in the liquid level detection technology, but cannot detect the liquid composition, let alone the remaining liquid amount. And when the water storage device is short of water, the residual cleaning liquid and foam will seriously affect the detection accuracy of the liquid level.

[0092] In view of the complex liquid composition in the water storage device and the influence of the cleaning liquid on the liquid level detection, this embodiment provides a liquid level detection method. By obtaining and analyzing the voltage value of the detection point in the water storage device, it is possible to detect whether there is liquid, the composition of the existing liquid, and the remaining liquid amount in the water storage device, expanding the detection range and being able to be compatible with the conductivity of various liquids. The complete detection process is as shown in the attached Figure 2 as shown.

[0093] Specifically, in this embodiment, a detection point is specifically set in the water storage device, and a corresponding detection module is equipped to detect the voltage of the detection point. The conductivity of the liquid can be collected by connecting in series with a resistor and collecting the partial voltage of the liquid; the better the conductivity, the smaller the voltage at the partial voltage point. According to the difference in conductivity when there is liquid or different liquids in the water storage device, collect the detection voltage of the detection point, and judge whether there is liquid, the liquid composition, and the remaining liquid amount in the water storage device by analyzing the detection voltage.

[0094] In this embodiment, the detection module includes a voltage division circuit and a detection circuit that are electrically connected. The detection point is located in the detection circuit, and a voltage acquisition point is also set in the detection circuit; one end of the voltage acquisition point is connected to the detection point, and the other end is grounded, so that the voltage value of the voltage acquisition point is the detection voltage value of the detection point. Exemplarily, the attached Figure 3A circuit diagram of a detection module is provided, and the detection point is located between the voltage-dividing resistor R1 and the voltage acquisition point H1. For example, the voltage-dividing resistor R1 is 100 kΩ and is connected to a 5V power supply. The voltage acquisition point H1 is grounded, and the voltage at the detection point is the voltage value of the voltage acquisition point. By obtaining the voltage at the voltage acquisition point H1, the detection voltage value at the detection point can be obtained.

[0095] At a certain moment, when the voltage value at the detection point changes and remains stable within a preset time period after that moment, the voltage value is used as the detection voltage value at that moment at the detection point.

[0096] Monitor the change in conductivity within the water storage device. When the conductivity changes and persists for a period of time, it is determined that there is liquid in the water storage device at this time, and the conductivity at this time is used as the reference conductivity for the presence of liquid in the water storage device. During the operation of the cleaning device, if it is determined that the conductivity of the liquid is less than the preset range or the conductivity drops sharply and persists for a period of time, it can be determined that the water storage device is short of water.

[0097] Specifically, a voltage change rate threshold is set. The voltage change rate threshold is the change amount of the detection voltage value within a specific time, and the voltage change rate threshold reflects the upper limit of the change rate of the detection voltage value. If within a certain time period, the growth rate of the detection voltage value exceeds the voltage change rate threshold and the increased voltage value remains stable within the preset time period, it is determined that the remaining amount of liquid in the second liquid state is lower than the preset remaining threshold, and a liquid addition instruction is output to prompt liquid addition. It is proved that the liquid in the water storage device is continuously consumed, resulting in a sharp decrease in the liquid in the water storage device and already being lower than the remaining threshold, and liquid addition needs to be prompted.

[0098] Among them, when determining whether there is liquid in the water storage device, it can be determined by detecting the voltage at the voltage-dividing point. In this embodiment, the voltage value at the voltage-dividing point is the detection voltage value. The voltage at the voltage-dividing point without liquid is much greater than the voltage value at the voltage-dividing point with liquid. When using the detection module with U1 being 5V and R1 being 100 kΩ, the experimental data of voltage detection when there is or is not liquid is shown in Table 1.

[0099] Table 1 Data table of voltage detection when there is or is not liquid

[0100]

[0101] Determining the liquid state in the water storage device based on the detected voltage value includes at least: analyzing the relationships between the detected voltage value and a preset liquid voltage value range and a preset non-liquid voltage value range respectively, and the liquid voltage value range is smaller than the non-liquid voltage value range; if the detected voltage value is within the non-liquid voltage value range, it is determined to be in the first liquid state; if the detected voltage value is within the liquid voltage value range, it is determined to be in the second liquid state. In Table 1, the liquid voltage value range is 0.45 - 4.16V, and the non-liquid voltage value range is the voltage value range above 4.5V. Different detection modules will result in different detected voltages. Therefore, the sizes of the liquid voltage value range and the non-liquid voltage value range are also different in different scenarios.

[0102] The liquid state includes the first liquid state and the second liquid state. For different application scenarios, more liquid states can be extended, such as the third liquid state, the fourth liquid state, etc. In the application of a floor washer, it is first necessary to detect whether there is liquid in the water storage device. Therefore, only the first liquid state and the second liquid state need to be divided. The first liquid state corresponds to the situation where there is no liquid in the water storage device, and the second liquid state corresponds to the situation where there is liquid in the water storage device.

[0103] In the water storage device, the conductivity of the same liquid is basically the same, and the detected voltage collected is also basically the same. In the case of liquid absence, due to the reduction of the conductive area, the conductivity will decrease and the resistance value will increase sharply, resulting in the detected voltage collected being greater than the detected voltage value in the case of having liquid.

[0104] Among them, when the cleaning liquid is in use, a large amount of foam will be generated. The conductivity of clean water is less than that of the cleaning liquid. As the cleaning liquid is consumed, some foam will remain on the inner wall of the water storage device, and the foam will increase the conductive area. At this time, the conductivity of the remaining cleaning liquid and foam will be greater than that of clean water but less than that of the cleaning liquid. Therefore, when the cleaning liquid in the water storage device is gradually consumed, the remaining cleaning liquid and foam will affect the conductivity in the water storage device and easily cause interference to the detection of the remaining liquid volume.

[0105] Let the conductivity of pure clean water be σ1, the conductivity of bubbles + cleaning liquid be σ2, and the conductivity of the cleaning liquid be σ3. Then σ3 >> σ2 >> σ1. Therefore, the liquid components in the water storage device can be judged by the cleaning liquid and clean water being in different voltage value ranges. The voltage detection data table under different liquid components is shown in Table 2.

[0106] Table 2 Voltage Detection Data Table under Different Liquid Components

[0107]

[0108] The resistance is inversely proportional to the conductivity, i.e., σ = 1 / ρ (where σ is the conductivity and ρ is the resistance).

[0109] Analyze the liquid components in the water storage device, including at least: when it is determined to be in the second liquid state, determine the voltage value range where the detected voltage value is located:

[0110] If the detected voltage value is within the preset first voltage value range, the liquid component in the water storage device is the first liquid; if the detected voltage value is within the preset second voltage value range, the liquid component in the water storage device is the second liquid; where the first voltage value range is lower than the second voltage value range, and the second liquid includes the first liquid and a cleaning liquid for improving the cleaning effect.

[0111] The first voltage value range corresponds to the voltage value range of the first liquid. Since the detected voltage is related to the power supply and voltage-dividing resistors of the detection module, the detected voltage will be different at different voltages. Therefore, the first voltage value range is a voltage value range obtained based on the same detection module, and the first voltage value range may be different in different scenarios. The second voltage value range corresponds to the voltage value range of the second liquid. Similar to the first voltage value range, the second voltage value range may be different in different scenarios. However, the first voltage value range is lower than the second voltage value range, and the conductivity of the first liquid is much smaller than that of the second liquid.

[0112] When it is determined to be in the second liquid state, after a period of consumption, the liquid in the water storage device may be consumed completely. Therefore, it is necessary to monitor the detected voltage in the water storage device in real time to obtain the corresponding remaining liquid volume. Therefore, a first range and a second range are set in the first voltage value range, and a third range, a fourth range, and a fifth range are set in the second voltage value range.

[0113] Among them, the first range corresponds to the voltage value interval where the first liquid is sufficient and does not need to be replenished. The second range corresponds to the voltage value interval where the first liquid is lacking and it is necessary to prompt to add the first liquid. At least including: the first voltage value range includes the first range and the second range that increase in sequence. If the detected voltage value is within the first range, the remaining liquid volume of the first liquid is not lower than the remaining threshold; if the detected voltage value is within the second range, the remaining liquid volume of the first liquid is lower than the remaining threshold, and it is necessary to prompt to add the first liquid.

[0114] Among them, the third range corresponds to the voltage value range where the second liquid is sufficient and no replenishment is required. The fourth range corresponds to the voltage value range of the cleaning liquid + foam state, that is, there is the second liquid but it is about to be consumed and needs to be replenished. The fifth range corresponds to the voltage value range where the second liquid is completely consumed. The second voltage value range includes the third range, the fourth range, and the fifth range that increase in sequence; if the detected voltage value is in the third range, the remaining amount of the second liquid is not lower than the remaining threshold; if the detected voltage value is in the fourth range, there is the second liquid in the water storage device, and the remaining amount of the second liquid is lower than the remaining threshold; if the detected voltage value is in the fifth range, the second liquid in the water storage device is consumed.

[0115] This embodiment provides a liquid level detection method for a cleaning device, which can detect whether there is liquid in the water storage device, the composition of the existing liquid, and the remaining amount of the liquid, broadens the detection range, and can be compatible with the conductivity of various liquids. For the complex liquid composition in the water storage device, the liquid level detection method can accurately determine the corresponding liquid composition according to the voltage value range. For the interference of residual cleaning liquid and foam on the detection of the remaining liquid amount, the liquid level detection method can accurately identify this state and prompt the user to add liquid.

[0116] Embodiment 2

[0117] Embodiment 2 of the present invention discloses a liquid level detection device for a cleaning device, which systematizes the liquid level detection method of a cleaning device in Embodiment 1 and makes it more practical. The overall structure diagram of the liquid level detection device is as shown in the attached Figure 4 description, and the specific scheme is as follows:

[0118] A liquid level detection device for a cleaning device is applicable to a cleaning device including a water storage device. The liquid level detection device includes:

[0119] An information acquisition module 1 for obtaining the detected voltage values of a preset detection point in the water storage device at each moment;

[0120] A liquid voltage value determination module 2 for determining the liquid state in the water storage device based on the detected voltage value:

[0121] If it is determined to be in a preset first liquid state, a liquid addition instruction is output;

[0122] If it is determined to be in a preset second liquid state, the liquid composition in the water storage device is analyzed, and by monitoring the change of the detected voltage value in the water storage device, the remaining amount of the liquid in the water storage device at each moment is obtained;

[0123] When the remaining amount of the liquid in the second liquid state is lower than the preset remaining threshold, a liquid addition instruction is output.

[0124] Among them, the liquid voltage value determination module 2 at least includes:

[0125] The liquid state determination module 21 is configured to analyze the relationships between the detected voltage value and a preset liquid voltage value range and a preset non-liquid voltage value range respectively, and the liquid voltage value range is smaller than the non-liquid voltage value range; if the detected voltage value is within the non-liquid voltage value range, it is determined that the first liquid state is in place; if the detected voltage value is within the liquid voltage value range, it is determined that the second liquid state is in place.

[0126] The liquid component determination module 22, when it is determined that the second liquid state is in place, is configured to determine the voltage value range where the detected voltage value is located: if the detected voltage value is within the preset first voltage value range, the liquid component in the water storage device is the first liquid; if the detected voltage value is within the preset second voltage value range, the liquid component in the water storage device is the second liquid; wherein, the first voltage value range is lower than the second voltage value range, and the second liquid includes the first liquid and a cleaning liquid for enhancing the cleaning effect.

[0127] The liquid remaining amount determination module 23 is configured to, after analyzing the liquid component, determine the voltage value range where the detected voltage value is located, and further obtain the remaining amount of the liquid in the water storage device.

[0128] Among them, the liquid level detection device further includes:

[0129] The terminal 3 is provided with a display module 31 and an alarm module 32;

[0130] The display module 31 is configured to display the liquid component, the remaining amount of the liquid in the water storage device, and the detected voltage of the detection point.

[0131] The alarm module 32 is configured to give an alarm to prompt adding liquid when the remaining amount of the liquid is lower than a preset remaining threshold and when it is determined that the first liquid state is in place.

[0132] This embodiment provides a liquid level detection device for a cleaning device, which systematizes the liquid level detection method in Embodiment 1 and makes it more practical.

[0133] Embodiment 3

[0134] This embodiment provides a computer device.

[0135] The computer device is presented in the form of a general computing device. The components of the computer device may include, but are not limited to: one or more processors or processing units, a system memory, and a bus connecting different system components (including the system memory and the processing unit). The computer device typically includes a variety of computer system-readable media. These media can be any available media that can be accessed by the device computer, including volatile and non-volatile media, removable and non-removable media. The system memory may include computer system-readable media in the form of volatile memory.

[0136] The computer device can also communicate with one or more external devices (such as a keyboard, a pointing device, a display, etc.), and can also communicate with one or more devices that enable a user to interact with the computer device, and / or communicate with any device that enables the computer device to communicate with one or more other computing devices.

[0137] By running the programs stored in the system memory, the processing unit executes various functional applications and data processing, for example, implementing a liquid level detection method for a cleaning device provided in Embodiment 1 of the present invention. The method includes:

[0138] 101. Obtain the detection voltage values of a preset detection point in the water storage device at each moment;

[0139] 102. Determine the liquid state in the water storage device based on the detection voltage values:

[0140] 103. If it is determined that the liquid is in a preset first liquid state, output a liquid addition instruction;

[0141] 104. If it is determined that the liquid is in a preset second liquid state, analyze the liquid components in the water storage device, and obtain the liquid consumption situation by monitoring the change of the detection voltage value in the water storage device;

[0142] 105. Obtain the remaining liquid amount in the water storage device at each moment. When the remaining liquid amount in the second liquid state is lower than a preset remaining threshold, output a liquid addition instruction.

[0143] In this embodiment, a liquid level detection method for a cleaning device is applied to a specific computer device, and the method is stored in the memory. When the actuator executes the memory, the method will be run to perform liquid level detection.

[0144] Of course, those skilled in the art can understand that the processor can also implement the technical solution of a liquid level detection method for a cleaning device provided in any embodiment of the present invention.

[0145] Embodiment 4

[0146] This Embodiment 4 provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, it implements the steps of a liquid level detection method for a cleaning device provided in any embodiment of the present invention. The method includes:

[0147] 101. Obtain the detection voltage values of a preset detection point in the water storage device at each moment;

[0148] 102. Determine the liquid state in the water storage device based on the detection voltage values:

[0149] 103. If it is determined that the liquid is in a preset first liquid state, output a liquid addition instruction;

[0150] 104. If it is determined that the liquid is in the preset second liquid state, analyze the liquid composition in the water storage device, and obtain the liquid consumption situation by monitoring the change of the detected voltage value in the water storage device;

[0151] 105. Obtain the remaining liquid amount in the water storage device at each moment. When the remaining liquid amount in the second liquid state is lower than the preset remaining threshold, output a liquid adding instruction.

[0152] The computer storage medium of this embodiment can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive list) of the computer-readable storage medium include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, the computer-readable storage medium can be any tangible medium that contains or stores a program, and this program can be used by or in combination with an instruction execution system, apparatus, or device.

[0153] This embodiment applies a liquid level detection method of a cleaning device to a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, it implements the steps of the liquid level detection method provided by the present invention, which is simple, fast, easy to store, and not easy to lose.

[0154] Embodiment 5

[0155] This application embodiment provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the steps of a liquid level detection method of a cleaning device in Embodiment 1 of this application. The method includes:

[0156] 101. Obtain the detected voltage values of the preset detection points in the water storage device at each moment;

[0157] 102. Determine the liquid state in the water storage device based on the detected voltage value:

[0158] 103. If it is determined that the liquid is in the preset first liquid state, output a liquid adding instruction;

[0159] 104. If it is determined that the preset second liquid state is in effect, analyze the liquid composition in the water storage device, and obtain the liquid consumption situation by monitoring the change of the detected voltage value in the water storage device;

[0160] 105. Obtain the remaining liquid amount in the water storage device at each moment. When the remaining liquid amount in the second liquid state is lower than the preset remaining threshold, output a liquid addition instruction.

[0161] In this embodiment, a liquid level detection method for a cleaning device is applied to a computer program product for easy execution.

[0162] Embodiment 6

[0163] This embodiment provides a liquid level detection system, including the liquid level detection device described in Embodiment 2 or any possible implementation thereof, or including the computer device described in Embodiment 3 or any possible implementation thereof, or including the computer program product described in Embodiment 5 or any possible implementation thereof, or including the computer-readable storage medium of Embodiment 4 or any possible implementation thereof.

[0164] The present invention provides a liquid level detection method, device, equipment, program product and system for a cleaning device. By monitoring and analyzing the voltage at the detection point in the water storage device, it is possible to detect whether there is liquid in the water storage device, the composition of the existing liquid, and the remaining amount of the liquid, broadening the detection range and being able to be compatible with the conductivity of various liquids.

[0165] Based on the influence of the presence or absence of liquid on the detected voltage value, by analyzing the liquid state in which the detected voltage value in the water storage device is located, it is further possible to determine whether there is liquid in the water storage device, realizing the detection of the presence or absence of liquid.

[0166] For the complex liquid composition in the water storage device, the liquid level detection method can accurately determine the corresponding liquid composition according to the voltage value range, and prompt the addition of the corresponding liquid according to different liquid compositions.

[0167] Regarding the interference of residual cleaning liquid and foam on the detection of the liquid remaining amount, the liquid level detection method reasonably divides the corresponding voltage range according to the range of the detected voltage value in this state, and can accurately identify this state by analyzing the voltage range in which the detected voltage value is located and prompt the user to add liquid.

[0168] The liquid level detection device of Embodiment 2 systematizes the liquid level detection method of the cleaning device, making it more practical.

[0169] A computer device in Embodiment 3 applies a liquid level detection method for a cleaning device to a specific computer device, stores the method in the memory, and when the actuator executes the memory, it will run the method for liquid level detection.

[0170] A computer-readable storage medium according to Embodiment 4, which applies a liquid level detection method of a cleaning device to a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the steps of the liquid level detection method provided by the present invention are implemented, which is simple, fast, easy to store, and not easy to lose.

[0171] A computer program product according to Embodiment 5, which applies a liquid level detection method of a cleaning device to a computer program product, facilitating execution.

[0172] Those skilled in the art can understand that the drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the drawings are not necessarily essential for implementing the present invention. Those skilled in the art can understand that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the description of the implementation scenario, or can be correspondingly changed and located in one or more devices different from this implementation scenario.

Claims

1. A liquid level detection method for cleaning equipment, characterized in that: A cleaning device applicable to a water storage device; The liquid level detection method includes the following steps: Obtain the detection voltage values of a preset detection point in the water storage device at each moment; Determine the liquid state in the water storage device based on the detection voltage values: If it is determined to be in a preset first liquid state, output a liquid addition instruction; If it is determined to be in a preset second liquid state, analyze the liquid composition in the water storage device, and by monitoring the change of the detection voltage value in the water storage device, obtain the remaining amount of the liquid in the water storage device at each moment; When the remaining amount of the liquid in the second liquid state is lower than a preset remaining threshold, output a liquid addition instruction; Among them, analyzing the liquid composition in the water storage device at least includes: judging the voltage value range where the detection voltage value is located: if the detection voltage value is within a preset first voltage value range, the liquid composition in the water storage device is a first liquid; if the detection voltage value is within a preset second voltage value range, the liquid composition in the water storage device is a second liquid; the first voltage value range is lower than the second voltage value range, and the second liquid includes the first liquid and a cleaning liquid for improving the cleaning effect.

2. The liquid level detection method according to claim 1, characterized in that: "Determine the liquid state in the water storage device based on the detection voltage value" at least includes: Analyze the relationships between the detection voltage value and a preset liquid voltage value interval and a preset non-liquid voltage value interval respectively; among them, the liquid voltage value interval is smaller than the non-liquid voltage value interval; If the detection voltage value is within the non-liquid voltage value interval, it is determined to be in the first liquid state; If the detection voltage value is within the liquid voltage value interval, it is determined to be in the second liquid state.

3. The liquid level detection method according to claim 1, characterized in that: The first voltage value range includes a first range and a second range that increase in sequence, If the detection voltage value is within the first range, the remaining amount of the first liquid is not lower than the remaining threshold; If the detection voltage value is within the second range, the remaining amount of the first liquid is lower than the remaining threshold.

4. The liquid level detection method according to claim 3, characterized in that, The second voltage value range includes a third range, a fourth range, and a fifth range that increase in sequence; If the detection voltage value is within the third range, the remaining amount of the second liquid is not lower than the remaining threshold; If the detection voltage value is within the fourth range, there is the second liquid in the water storage device, and the remaining amount of the second liquid is lower than the remaining threshold; If the detection voltage value is within the fifth range, the second liquid in the water storage device is consumed.

5. The liquid level detection method according to claim 1, characterized in that: The process of obtaining the detection voltage at least includes: When at a certain moment, the voltage value of the detection point changes, and the voltage value remains stable within a preset time period after that moment, the changed voltage value is used as the detection voltage value of the detection point at that moment.

6. The liquid level detection method according to claim 1, characterized in that: Obtain the detection voltage through a preset detection module; The detection module includes a voltage division circuit and a detection circuit that are electrically connected; The detection point is located in the detection circuit, and a voltage acquisition point is set in the detection circuit; The voltage acquisition point is connected to the detection point, and the voltage value of the voltage acquisition point is the detection voltage value of the detection point.

7. The liquid level detection method according to claim 1, wherein Setting a voltage change rate threshold, wherein the voltage change rate threshold is the amount of change of the detected voltage value within a specific time; If, during a certain period of time, the growth rate of the detected voltage value exceeds the voltage change rate threshold, and the increased voltage value remains stable within a preset time period, it is determined that the remaining amount of liquid in the second liquid state is lower than the preset remaining threshold, and a liquid adding instruction is output to prompt the user to add liquid.

8. A liquid level detection device for cleaning equipment, characterized in that: Applicable to cleaning equipment including water storage devices; The liquid level detection device comprises: An information acquisition module, used to obtain detection voltage values of preset detection points in the water storage device at various times; A liquid voltage value determination module is used to determine the liquid state in the water storage device based on the detected voltage value: If it is determined to be in the preset first liquid state, a liquid adding instruction is output; If it is determined that the water storage device is in the preset second liquid state, analyzing the liquid composition in the water storage device and obtaining the remaining amount of liquid in the water storage device at each moment by monitoring the change of the detection voltage value in the water storage device; When the remaining amount of liquid in the second liquid state is lower than a preset remaining threshold, outputting a liquid adding instruction; The liquid voltage value determination module at least includes: The liquid composition determination module is used to determine the voltage value range of the detection voltage value when it is determined that the liquid is in the second liquid state: if the detection voltage value is within the preset first voltage value range, the liquid composition in the water storage device is the first liquid; if the detection voltage value is within the preset second voltage value range, the liquid composition in the water storage device is the second liquid; wherein, the first voltage value range is lower than the second voltage value range, and the second liquid includes the first liquid and a cleaning liquid for improving the cleaning effect.

9. The liquid level detection device according to claim 8, characterized in that The liquid voltage value determination module also includes: a liquid state determination module, configured to analyze the relationship between the detection voltage value and a preset liquid voltage value interval and a preset non-liquid voltage value interval, wherein the liquid voltage value interval is smaller than the non-liquid voltage value interval; if the detection voltage value is within the non-liquid voltage value interval, determining that the liquid is in the first liquid state; and if the detection voltage value is within the liquid voltage value interval, determining that the liquid is in the second liquid state; The liquid remaining amount determination module is used to determine the voltage value range of the detection voltage value after analyzing the liquid composition, and then obtain the remaining amount of liquid in the water storage device.

10. The liquid level detection device according to claim 9, characterized in that, The liquid level detection device also includes: The terminal is provided with a display module and an alarm module; The display module is used to display the liquid composition, the remaining amount of liquid in the water storage device and the detection voltage of the detection point; The alarm module is used to output a liquid adding instruction and issue an alarm to prompt the user to add liquid when the remaining amount of liquid in the second liquid state is lower than a preset remaining threshold and when the liquid is determined to be in the first liquid state.

11. A computer device, characterized in that: The computer device comprises: one or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the liquid level detection method for cleaning equipment as described in any one of claims 1 to 7.

12. A computer program product, characterized in that, The method comprises executable instructions for implementing a liquid level detection method for a cleaning device as described in any one of claims 1 to 7 when executed by a processor.

13. A liquid level detection system, characterized in that, A liquid level detection device comprising the liquid level detection device according to any one of claims 8 to 10, or a computer device according to claim 11, or a computer program product according to claim 12.

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