CN114947607A

CN114947607A - Dust box dust fullness detection method and device, dust collection device and automatic cleaning equipment

Info

Publication number: CN114947607A
Application number: CN202210410143.4A
Authority: CN
Inventors: 李春宏; 秦义雄
Original assignee: Anker Innovations Co Ltd
Current assignee: Anker Innovations Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-30
Anticipated expiration: 2042-04-19
Also published as: CN114947607B

Abstract

The application relates to a dust box dust fullness detection method and device, a dust collection device and automatic cleaning equipment. The method is applied to a dust collection device, and the dust collection device comprises a fan assembly and a dust box; the fan assembly is communicated with the dust box and used for exhausting gas in the dust box. The method comprises the following steps: acquiring a first actual wind pressure difference value; the first actual air pressure difference value is the pressure difference between the actual air pressure value in the dust box and the actual air pressure value in the fan assembly under the condition that the fan assembly operates at the first gear; acquiring a first target wind pressure difference value; the first target air pressure difference value is the pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly under the condition that the fan assembly runs at a first gear and the dust box is full of dust; and when the first actual air pressure difference value is larger than or equal to the first target air pressure difference value, adjusting the working state of the fan assembly, and judging whether the dust box is full of dust or not by combining the adjusted working parameters of the fan assembly. By adopting the method, the detection accuracy can be improved.

Description

Dust box dust fullness detection method and device, dust collection device and automatic cleaning equipment

Technical Field

The application relates to the technical field of automatic cleaning, in particular to a dust box dust fullness detection method and device, a dust collection device and automatic cleaning equipment.

Background

The automatic cleaning equipment is equipment capable of automatically cleaning, and can suck garbage on the ground and temporarily store the garbage in a dust box of the equipment. Because automatic cleaning equipment can inhale various types of rubbish in the dirt box at the self-service in-process of cleaning, bulky rubbish (like shredded paper and hair etc.) very easily leads to the dirt box to be full-load, and then influences automatic cleaning equipment's the area of cleaning and causes fan subassembly abnormal work, consequently, for guaranteeing automatic cleaning equipment's normal work and improving and clean efficiency, whether need detect automatic cleaning equipment's dirt box is full-load to in time clear up the dirt box.

At present, the traditional technology realizes dust box dust fullness detection in a timing mode. That is, it is determined that the dust box is full based on the operating time of the robot cleaner when the operating time of the robot cleaner reaches a preset time threshold. However, due to different usage environments, each sweeping process results in different degrees of dustiness and different degrees of fan blockage, even at the same operating time. The timing mode cannot accurately detect and reflect the actual situation that the dust box is full of dust.

In addition, the conventional technology can detect whether the dust box is full through an infrared signal. By utilizing the characteristic that an object reflects an infrared signal, the traditional technology can transmit the infrared signal into the dust box, and the dust fullness degree of the dust box is judged by calculating the return ratio of the infrared signal. However, in practical applications, the trash in the dust box may be unevenly distributed, which may lead to misjudgment.

Therefore, the existing dust box dust fullness detection methods cannot accurately detect whether the dust box is full of dust.

Disclosure of Invention

In view of the above, it is necessary to provide a dust box dust fullness detecting method, device, control module, dust suction device, automatic cleaning device, computer readable storage medium and computer program product capable of improving detection accuracy.

In a first aspect, the present application provides a dust box dust fullness detection method. The method is applied to a dust collection device which comprises a fan assembly and a dust box, wherein the fan assembly is communicated with the dust box and is used for discharging gas in the dust box. The method comprises the following steps:

acquiring a first actual wind pressure difference value; the first actual air pressure difference value is the pressure difference between the actual air pressure value in the dust box and the actual air pressure value in the air pressure assembly under the condition that the fan assembly operates at a first gear;

acquiring a first target wind pressure difference value; the first target air pressure difference value is the pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly under the condition that the fan assembly operates at the first gear and the dust box is full of dust;

and when the first actual air pressure difference value is larger than or equal to the first target air pressure difference value, adjusting the working state of the fan assembly, and judging whether the dust box is full of dust or not by combining the adjusted working parameters of the fan assembly.

In a second aspect, the present application provides a dust box dust fullness detection apparatus, which is applied to a dust extraction apparatus, which includes a fan assembly and a dust box, the fan assembly communicates with the dust box for discharging gas in the dust box. The device comprises:

the first actual wind pressure difference value acquisition module is used for acquiring a first actual wind pressure difference value; the first actual air pressure difference value is the pressure difference between the actual air pressure value in the dust box and the actual air pressure value in the fan assembly under the condition that the fan assembly operates at a first gear;

the first target wind pressure difference value acquisition module is used for acquiring a first target wind pressure difference value; the first target air pressure difference value is the pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly under the condition that the fan assembly operates at the first gear and the dust box is full of dust;

and the dust fullness judging module is used for adjusting the working state of the fan assembly when the first actual air pressure difference value is greater than or equal to the first target air pressure difference value, and judging whether the dust box is full of dust or not by combining the adjusted working parameters of the fan assembly.

In a third aspect, the present application provides a control module. The control module comprises a memory and a processor, the memory stores a computer program, and the processor realizes the following steps when executing the computer program:

acquiring a first actual wind pressure difference value; the first actual air pressure difference value is the pressure difference between the actual air pressure value in the dust box and the actual air pressure value in the fan assembly under the condition that the fan assembly operates at a first gear;

acquiring a first target wind pressure difference value; the first target air pressure difference value is the minimum pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly under the condition that the fan assembly operates at the first gear and the dust box is full of dust;

In a fourth aspect, an embodiment of the present application provides a dust suction apparatus, including:

the dust box is provided with a first air port and a second air port;

the fan assembly is communicated with the first air port and is used for exhausting gas in the dust box through the first air port and/or the second air port;

the wind pressure difference value detection module is used for detecting a first actual wind pressure difference value; the first actual air pressure difference value is the pressure difference between the actual air pressure value in the dust box and the actual air pressure value in the fan assembly under the condition that the fan assembly operates at a first gear;

the control module is electrically connected with the wind pressure difference value detection module.

In a fifth aspect, the present application provides an automatic cleaning device, including the dust suction device of any one of the above embodiments.

In a sixth aspect, the present application provides a computer-readable storage medium. The computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of:

In a seventh aspect, the present application provides a computer program product. The computer program product comprising a computer program which when executed by a processor performs the steps of:

In the dust box dust fullness detection method, the device, the control module, the dust collection device, the automatic cleaning equipment, the computer readable storage medium and the computer program product, under the condition that the fan assembly operates at the first gear, the pressure difference between the actual wind pressure value in the dust box and the actual wind pressure value in the fan assembly (namely, a first actual wind pressure difference value) is obtained, and under the condition that the fan assembly operates at the first gear and the dust box is fully loaded, the pressure difference between the wind pressure value in the dust box and the wind pressure value in the fan assembly (namely, a first target wind pressure difference value) is obtained, when the first actual wind pressure difference value is larger than or equal to the first target wind pressure difference value, the working state of the fan assembly is adjusted, and whether the dust box is full or not is judged by combining the adjusted working parameters of the fan assembly. Therefore, the working state of the fan assembly can be adjusted according to the air pressure difference value between the dust box and the fan assembly, and then whether the dust box is fully loaded or blocked is judged, misjudgment caused by uneven distribution of the contents in the dust box is avoided, and the judgment accuracy of dust fullness of the dust box of the dust suction device can be improved.

Drawings

FIG. 1 is a schematic flow chart of a method for detecting fullness in a dust box according to an embodiment;

FIG. 2 is a flowchart illustrating a step of determining whether the dust box is full of dust according to the first actual air pressure difference and the first target air pressure difference in one embodiment;

FIG. 3 is a flowchart illustrating a step of determining whether the dust box is full of dust according to a second actual air pressure difference and a second target air pressure difference in one embodiment;

FIG. 4 is a second flowchart illustrating the step of determining whether the dust box is full of dust according to the first actual air pressure difference and the first target air pressure difference in one embodiment;

FIG. 5 is a second flowchart of a dust box fullness detection method according to an embodiment;

FIG. 6 is a third flowchart illustrating a method for detecting fullness in a dust box according to an embodiment;

FIG. 7 is a block diagram of an embodiment of a dust box dust fullness apparatus;

FIG. 8 is a schematic view showing the structure of an automatic cleaning apparatus according to an embodiment;

FIG. 9 is a second schematic view of an embodiment of an automatic cleaning apparatus;

FIG. 10 is a third schematic structural view of an automatic cleaning apparatus according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that the terms "first," "second," and the like as used herein may be used herein to describe various features, but these features are not limited by these terms. These terms are only used to distinguish one feature from another. For example, a first tuyere may be referred to as a second tuyere, and similarly, a second tuyere may be referred to as a first tuyere without departing from the scope of the present application. Both the first tuyere and the second tuyere are tuyeres, but they are not the same tuyere.

As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.

The embodiment of the application provides a dust box dust fullness detection method which can be used for detecting a dust collection device so as to judge whether a dust box of the dust collection device is full or blocked. Specifically, the dust extraction device can include a fan assembly and a dirt box. The fan assembly is communicated with the dust box and used for exhausting gas in the dust box so that the dust suction device can suck objects and retain objects such as dust, garbage and the like in the dust box.

In one embodiment, the dust box may be provided with a first air opening and a second air opening. The fan assembly is communicated with the first air opening and is used for exhausting gas in the dust box through the first air opening and/or the second air opening. In one example, with the fan assembly in the operational state, the fan assembly can draw air within the dust box through the first air opening such that air from the external environment enters the dust box from the second air opening and suction of objects is completed. In this example, the first tuyere may be understood as an air suction opening and the second tuyere may be understood as a dust inlet opening. If the fan assembly operates, the gas flows through the dust inlet, the dust box, the air suction opening and the fan assembly in sequence.

In another example, the fan assembly can output gas through the first port to the dust box while the fan assembly is in an operational state such that gas within the dust box is exhausted through the second port. Therefore, the dust suction device can suck objects into the dust box. In this example, the first air opening can be understood as an air inlet of the dust box, and the second air opening can be understood as an air outlet of the dust box. If the fan assembly operates, the air flows through the fan assembly, the air inlet, the dust box and the air outlet in sequence.

It can be understood that the specific arrangement mode of the fan assembly and the dust box can be determined according to the actual factors of the dust suction device, such as the circuit arrangement, the external shape, the air port position and the like, and the application does not specifically limit the specific arrangement mode.

Through a plurality of researches, the inventor finds that the pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly is related to the content of the dust box under the condition that the fan assembly is in an operating state. The pressure difference when the dust box is unloaded is greatly different from the pressure difference when the dust box is fully loaded. Based on the conception, the application provides a detection method for judging whether the dust box is full of dust or not based on the pressure difference between the dust box and the fan assembly, and the accuracy of dust full of the dust box can be improved.

In one embodiment, as shown in fig. 1, there is provided a dust box fullness detecting method applicable to a dust suction apparatus, the method comprising the steps of:

step 100, obtaining a first actual wind pressure difference value. The first actual air pressure difference value is the pressure difference between the actual air pressure value in the dust box and the actual air pressure value in the fan assembly under the condition that the fan assembly operates at the first gear.

In order to enable the pressure difference between the dust box and the fan assembly to accurately reflect the content in the dust box, the operation gear of the fan assembly can be kept unchanged when the first actual air pressure difference value is determined. The first gear refers to an operation gear of the fan assembly when the first actual wind pressure difference value is determined, and does not refer to a specific gear such as a lowest gear or a highest gear. For example, if the operating gears of the fan assembly include ABCD 4 gears, and the first actual wind pressure difference value is a pressure difference between an actual wind pressure value in the dust box and an actual wind pressure value in the fan assembly when the fan assembly operates at the B gear, the first gear is the B gear.

The actual wind pressure value in the dust box can be determined according to the actual wind pressure value measured at any position in the dust box, and the application does not specifically limit the actual wind pressure value. In one embodiment, if the dust box is provided with a dust inlet and an air suction opening, the actual air pressure value at the air suction opening can be used as the actual air pressure value in the dust box. Further, if the suction opening is covered with the filter assembly and the filter assembly includes a first surface facing the dust box, the actual wind pressure value at the first surface can be taken as the actual wind pressure value in the dust box.

The actual wind pressure value in the fan assembly can be determined according to the actual wind pressure value measured at any position in the fan assembly, and the application does not specifically limit the actual wind pressure value. In one embodiment, if the dust box is provided with a dust inlet and an air suction opening, and the fan assembly comprises an air outlet duct communicated with the air suction opening, an actual air pressure value in the air outlet duct can be used as an actual air pressure value in the fan assembly. In another embodiment, if the dust box is provided with an air inlet and an air outlet, and the fan assembly comprises an air inlet duct communicated with the air inlet, the actual air pressure value in the air inlet duct can be used as the actual air pressure value in the fan assembly.

Step 200, obtaining a first target wind pressure difference value. The first target air pressure difference value is the pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly under the condition that the fan assembly runs at the first gear and the dust box is full of dust.

In other words, the fan assembly operating gear corresponding to the first target wind pressure difference value is the same as the operating gear of the fan assembly when the first actual wind pressure difference value is determined. The first target air pressure difference value may be indicative of a pressure difference between an air pressure value within the dirt box and an air pressure value within the fan assembly when the fan assembly is operating with the first assembly in a dirt-laden condition of the dirt box. In one embodiment, the first target wind pressure difference value may be predetermined by way of testing. For example, the dust box is full of dust, the fan assembly is controlled to operate at the first gear, and the pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly at the moment is obtained as the first target air pressure difference value. Alternatively, the test process may be performed multiple times, and the minimum pressure difference among the pressure differences obtained each time is used as the first target wind pressure difference value, so as to improve the accuracy of the test result.

And 300, when the first actual air pressure difference value is larger than or equal to the first target air pressure difference value, adjusting the working state of the fan assembly, and judging whether the dust box is full of dust or not by combining the adjusted working parameters of the fan assembly.

Specifically, the first target wind pressure value is the pressure difference between the dust box and the fan assembly when the fan assembly runs at the first gear and the dust box is full of dust, so that whether the dust box is full of dust can be judged according to the first actual wind pressure difference value and the first target wind pressure difference value. When the first actual air pressure difference value is larger than or equal to the first target air pressure difference value, the working state of the fan assembly is adjusted by considering the situation that the dust box is full of dust, so that the working mode of the fan assembly is changed. Furthermore, whether the dust box is full of dust is judged by combining the adjusted working parameters of the fan assembly, so that the possibility of false detection and missed detection can be reduced to a certain extent. The type of the working parameter of the adjusted fan assembly can be determined according to actual requirements, and is not limited herein. The combination of the adjusted working parameters of the fan assembly can be understood as a comprehensive consideration of the adjusted working parameters of the fan assembly and the first target air pressure difference value, and can also be combined with other types of parameters, so that the dust box full dust detection can be accurately realized through fewer method steps, and the detection efficiency and the detection accuracy are both considered.

In one embodiment, the first actual air pressure difference value and the first target air pressure difference value can be compared, and whether the dust box is full of dust can be directly judged according to the comparison result. For example, the present application may directly confirm that the dust box is full when the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value. In one embodiment, the present application may substitute the first actual wind pressure difference value and the first target wind pressure difference value into a preset expression to obtain a result, and determine whether the dust box is full of dust according to the result. For example, the preset expression may be that the first actual air pressure difference value is subtracted by the first target air pressure difference value, and when the result is greater than or equal to 0, the first actual air pressure difference value is considered to be greater than or equal to the first target air pressure difference value, and it is determined that the dust box is full of dust. Or, the preset expression may also be that the first actual air pressure difference value is divided by the first target air pressure difference value, and when the result is greater than or equal to 1, the first actual air pressure difference value is considered to be greater than or equal to the first target air pressure difference value, and it is determined that the dust box is full of dust. It is understood that, in other embodiments, the preset expression may be set according to actual situations such as test results, detection results, and the like, and the present application is not limited thereto specifically.

In the dust box dust fullness detection method, a pressure difference (namely a first actual air pressure difference value) between an actual air pressure value in the dust box and an actual air pressure value in the fan assembly is obtained under the condition that the fan assembly operates at a first gear, and a pressure difference (namely a first target air pressure difference value) between an air pressure value in the dust box and an air pressure value in the fan assembly is obtained under the condition that the fan assembly operates at the first gear and the dust box is fully loaded, when the first actual air pressure difference value is larger than or equal to the first target air pressure difference value, the working state of the fan assembly is adjusted, and whether the dust box is full of dust is judged by combining the adjusted working parameters of the fan assembly. Therefore, the working state of the fan assembly can be adjusted according to the air pressure difference value between the dust box and the fan assembly, and then whether the dust box is fully loaded or blocked is judged, misjudgment caused by uneven distribution of the contents in the dust box is avoided, and the judgment accuracy of dust fullness of the dust box of the dust suction device can be improved.

In one embodiment, as shown in FIG. 2, step 300 includes:

step 310, under the condition that the first actual wind pressure difference value is larger than the first target wind pressure difference value, if the first gear is not the highest gear, controlling the fan assembly to operate at a second gear, and acquiring a second actual wind pressure difference value and a second target wind pressure difference value;

and step 320, judging whether the dust box is full of dust or not according to the second actual air pressure difference value and the second target air pressure difference value.

The maximum working speed refers to the maximum rotating speed in all the working rotating speeds of the fan, and the working rotating speed refers to the rotating speed of the fan under the working of different gears. Generally, the larger the operating speed is, the larger the gear is, and therefore, in this embodiment, the highest gear is the gear corresponding to the maximum operating speed of the fan. The rotating speed of the fan corresponding to the second gear is greater than that of the fan corresponding to the first gear; the second actual air pressure difference value is the pressure difference between the actual air pressure value in the dust box and the actual air pressure value in the fan assembly under the condition that the fan assembly operates at a second gear; the second target air pressure difference value is a pressure difference between an air pressure value in the dust box and an air pressure value in the fan under the condition that the fan assembly runs at the second gear and the dust box is full of dust. And the pressure difference between the air pressure value in the dust box and the air pressure value in the fan can be obtained for a plurality of times under the conditions that the fan assembly operates at the second gear and the dust box is full of dust, and the minimum pressure difference in the obtained pressure difference at each time is used as a second target air pressure difference value so as to improve the accuracy of the test result. The fan speed refers to the speed of the fan assembly.

In particular, it is contemplated that the first actual wind pressure differential value being greater than the first target wind pressure differential value may be caused by the dirt box becoming full, or may be due to a filter assembly within the dust extraction device becoming clogged. In the event that the filter assembly is clogged and the dirt tray is not fully loaded, the first actual wind pressure differential value may also be greater than the first target wind pressure differential value. For example, when there are some light and large-area (e.g., paper) objects in the dust box, the objects may block the dust box, resulting in erroneous determination. For the erroneous judgement that avoids aforementioned condition and lead to, further improve the full accuracy that detects of dirt box dirt, the operation gear of fan subassembly can be adjusted under the condition that first actual wind pressure differential value is greater than first target wind pressure differential value to this application for the fan subassembly is with higher fan rotational speed operation, in order to overcome the problem that filter assembly blockked up.

Specifically, under the condition that the first actual wind pressure difference value is greater than the first target wind pressure difference value, if the operating gear (i.e., the first gear) of the fan assembly when the first actual wind pressure difference value is determined is not the gear (i.e., the highest gear) corresponding to the maximum rotational speed of the fan, the operating gear of the fan assembly may be adjusted up to the second gear, so that the fan assembly operates at a higher fan rotational speed, and a second actual wind pressure difference value and a second target wind pressure difference value corresponding to the operation of the fan assembly at the second gear are obtained.

It should be noted that one or more gears may be determined as the second gear in the present application, and the present application does not specifically limit this. If the fan rotating speed corresponding to the first gear is the first rotating speed, the second gear can be any gear with the fan rotating speed higher than the first rotating speed. For example, in the case that the operating gears of the fan assembly include ABCD 4 gears, and the fan rotation speeds corresponding to the ABCD gears are sequentially increased, if the first gear is the B gear, the second gear may be the C gear and/or the D gear.

In one embodiment, the second gear may be a gear in which the fan speed is higher than the first speed and the fan speed is closest to the first speed. For example, in the foregoing example, if the first gear is the B gear, the C gear may be determined as the second gear.

The second target air pressure value is the pressure difference between the dust box and the fan assembly when the fan assembly runs at the second gear and the dust box is full of dust, so that whether the dust box is full of dust can be judged according to the second actual air pressure difference value and the second target air pressure difference value, accurate dust box dust full detection can be achieved through fewer method steps, and both the detection efficiency and the detection accuracy are considered.

In one embodiment, the second actual wind pressure difference value and the second target wind pressure difference value can be compared, and whether the dust box is full of dust or not can be judged according to the comparison result. In another embodiment, the second actual wind pressure difference value and the second target wind pressure difference value may be substituted into the preset expression to obtain a result, and whether the dust box is full of dust is determined according to the result. The preset expression may be set according to actual conditions such as a test result and a detection result, which is not specifically limited in this application.

In this embodiment, through adjusting the operation gear of fan subassembly under the condition that first actual wind pressure differential value is greater than first target wind pressure differential value for fan subassembly is with higher fan rotational speed operation, and judges whether the dirt box is full of dust according to actual wind pressure differential value and target wind pressure differential value under the higher fan rotational speed, and then can reduce the possibility of erroneous judgement, further improves the accuracy that the dirt box is full of dust and detects.

In one embodiment, the step of determining whether the dust box is full of dust according to the second actual air pressure difference value and the second target air pressure difference value includes:

under the condition that the second actual wind pressure difference value is larger than or equal to the second target wind pressure difference value, if the second gear is not the highest gear, controlling the fan assembly to operate at a third gear, and acquiring a third actual wind pressure difference value and a third target wind pressure difference value; the third actual air pressure difference value is the pressure difference between the actual air pressure value in the dust box and the actual air pressure value in the fan assembly under the condition that the fan assembly operates at a third gear; the third target air pressure difference value is a pressure difference between an air pressure value in the dust box and an air pressure value in the fan assembly under the condition that the fan assembly operates at a third gear and the dust box is full of dust. And the pressure difference between the air pressure value in the dust box and the air pressure value in the fan can be obtained for a plurality of times under the conditions that the fan assembly operates at a third gear and the dust box is full of dust, and the minimum pressure difference in the obtained pressure differences at each time is used as a third target air pressure difference value so as to improve the accuracy of the test result. The second gear is an Nth gear, the third gear is an (N + M) th gear, and N and M are positive integers;

and under the condition that the third actual air pressure difference value is larger than or equal to the third target air pressure difference value, if the third gear is the highest gear, determining that the dust box is full of dust, otherwise, updating N to be (N + M), controlling the fan assembly to operate at the third gear, and performing the step of obtaining the third actual air pressure difference value and the third target air pressure difference value.

Specifically, if the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value, the fan speed of the fan assembly is adjusted up, the fan assembly is controlled to operate at the nth gear (i.e., the second gear), and the second actual wind pressure difference value and the second target wind pressure difference value in the operating state are determined. If the second actual wind pressure difference value is larger than or equal to the second target wind pressure difference value and the nth gear is not the highest gear, the rotating speed of the fan assembly is continuously adjusted upwards, the fan assembly is controlled to operate at the (N + M) th gear (namely, the third gear), and the third actual wind pressure difference value and the third target wind pressure difference value in the operating state are determined.

If the third actual wind pressure difference value is greater than or equal to the third target wind pressure difference value and the (N + M) th gear is the highest gear, the dust box can be determined to be full of dust. If the (N + M) th gear is not the highest gear, the value of N may be updated to (N + M) to update the gear, and the fan assembly is controlled to operate at the third gear after the gear update, so as to obtain a third actual wind pressure difference value and a third target wind pressure difference value in this operating state. It can be understood that the second gear after the gear update is the third gear before the gear update, and the third gear after the gear update is the (N +2M) th gear before the gear update. In other words, in the case that the third actual wind pressure difference value is greater than or equal to the third target wind pressure difference value, the third gear may be adjusted up by M as a step-by-step until the third gear is the highest gear or the third actual wind pressure difference value is smaller than the third target wind pressure difference value. Wherein, M is a positive integer, and a specific value thereof may be determined according to an actual situation, which is not specifically limited in the present application. In one example, M may be 1.

Taking M as 1, the highest gear as the a-th gear, the first gear as the B-th gear (B is smaller than a, and a and B are positive integers), each operating gear corresponds to a target wind pressure difference value. When the fan assembly runs in the B gear, a first actual air pressure difference value of the dust suction device is determined. And determining the target wind pressure difference value corresponding to the gear B as a first target wind pressure difference value, and comparing the first actual wind pressure difference value with the first target wind pressure difference value. And controlling the fan assembly to operate at the (B +1) th gear under the condition that the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value. When the fan assembly operates in the (B +1) th gear, a second actual air pressure difference value of the dust suction device is determined. And determining the target wind pressure difference value corresponding to the (B +1) th gear as a second target wind pressure difference value, and comparing the second actual wind pressure difference value with the second target wind pressure difference value. And controlling the fan assembly to operate at the (B +2) th gear under the condition that the second actual wind pressure difference value is greater than or equal to the second target wind pressure difference value. And when the fan assembly runs at the (B +2) th gear, determining a third actual air pressure difference value of the dust suction device. And determining the target wind pressure difference value corresponding to the (B +2) th gear as a third target wind pressure difference value. And controlling the fan assembly to operate at the (B +3) th gear under the condition that the third actual wind pressure difference value is greater than or equal to the third target wind pressure difference value. And when the fan assembly runs at the (B +3) th gear, determining a third actual air pressure difference value of the dust suction device, and determining a target air pressure difference value corresponding to the (B +3) th gear as a third target air pressure difference value. And under the condition that the third actual air pressure difference value is larger than or equal to the third target air pressure difference value, the operation gear of the fan assembly is adjusted upwards according to the steps, the third actual air pressure difference value and the third target air pressure difference value are determined again after the gear is adjusted upwards, and the re-determined third actual air pressure difference value and the third target air pressure difference value are compared until the fan assembly operates according to the A gear or the third actual air pressure difference value is smaller than or equal to the third target air pressure difference value.

And under the condition that the fan assembly operates in the gear A, determining a third target air pressure difference value and a third actual air pressure difference value in the operating state. And if the third actual air pressure difference value is greater than or equal to the third target air pressure difference value, determining that the dust box is full of dust. In this example, 1 ≦ B ≦ (B +1) ≦ (B +2) ≦ A.

In this embodiment, under the condition that the second gear is not the highest gear, whether the dust box is full of dust can be determined by combining the air pressure difference values corresponding to the second gear, the third gear and the highest gear. Therefore, the interference of the dust suction device to a user in the gear adjustment process can be reduced by gradually increasing the operating gears, and the judgment can be carried out by combining the air pressure difference value of the dust suction device at the highest fan rotating speed, so that the accuracy of the dust box dust fullness judgment is further improved.

In one embodiment, the step of determining whether the dust box is full of dust according to the second actual air pressure difference value and the second target air pressure difference value further includes: and if the third actual air pressure difference value is smaller than the third target air pressure difference value, determining that the dust box is not full of dust, and controlling the fan assembly to operate at the first gear or the second gear.

Specifically, if the first actual air pressure difference value is greater than or equal to the first target air pressure difference value, the second actual air pressure difference value is greater than or equal to the second target air pressure difference value, and the third actual air pressure difference value is less than the third target air pressure difference value, it can be shown that, after the rotation speed of the upper air blower is adjusted, the actual pressure difference between the dust box and the air blower assembly does not satisfy the minimum pressure difference between the dust box and the air blower assembly when the dust box is full of dust at the third gear. Therefore, the first actual air pressure difference value is larger than or equal to the first target air pressure difference value, and the second actual air pressure difference value is larger than or equal to the second target air pressure difference value, which may be caused by factors such as blockage of the filtering component, and not due to dust fullness of the dust box, the operation gear of the fan component can be adjusted to be the first gear or the second gear, and the gear is adjusted according to actual requirements, so that user experience is improved.

In one example, as shown in fig. 3, the step of determining whether the dust box is full of dust according to the second actual air pressure difference value and the second target air pressure difference value includes:

step 321, determining whether the second actual wind pressure difference value is greater than or equal to the second target wind pressure difference value, if yes, going to step 322, and if not, going to step 328;

step 322, determining whether the second gear is the highest gear, if not, entering step 323, and if so, entering step 326;

step 323, controlling the fan assembly to operate at the (N + M) th gear, and acquiring a third actual wind pressure difference value and a third target wind pressure difference value; the third actual air pressure difference value is the pressure difference between the actual air pressure value in the dust box and the actual air pressure value in the fan assembly under the condition that the fan assembly operates at a third gear; the third target air pressure difference value is the minimum pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly under the condition that the fan assembly runs at a third gear and the dust box is full of dust;

step 324, determining whether the third actual wind pressure difference value is greater than or equal to the third target wind pressure difference value, if yes, entering step 325, and if no, entering step 328;

step 325, determining whether the third gear is the highest gear, if so, entering step 326, otherwise, entering step 327;

step 326, confirming that the dust box is full of dust;

step 327, update N to (N + M), and go to step 323;

step 328, confirm that the dirt box is not dirty and control the fan assembly to operate in the first gear.

In one embodiment, the second gear may be the highest gear. Judging whether the dust box is full of dust according to the second actual air pressure difference value and the second target air pressure difference value, wherein the step comprises the following steps of: and confirming that the dust box is full of dust under the condition that the second actual air pressure difference value is greater than or equal to the second target air pressure difference value.

In this embodiment, when the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value, the fan assembly may be controlled to operate at the highest gear, and a second actual wind pressure difference value of the fan at the highest gear and a second target wind pressure difference value corresponding to the highest gear are determined. If the second actual air pressure difference value is larger than or equal to the second target air pressure difference value, the dust box can be confirmed to be full of dust. Therefore, the judgment can be carried out by combining the air pressure difference value of the dust suction device at the highest fan rotating speed, so that the accuracy of dust box dust fullness judgment is further improved, the dust box dust fullness judgment time can be shortened, and the detection efficiency is improved.

In one embodiment, the step of determining whether the dust box is full of dust according to the second actual air pressure difference value and the second target air pressure difference value further includes: and under the condition that the second actual air pressure difference value is smaller than the second target air pressure difference value, determining that the dust box is not full of dust, and controlling the fan assembly to operate at the first gear.

Specifically, if the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value, and the second actual wind pressure difference value of the dust collection device at the highest gear is less than the second target wind pressure difference value, it can be considered that the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value possibly caused by factors such as blockage of the filter assembly, and not due to fullness of dust in the dust box, the operation gear of the fan assembly can be adjusted to the first gear, so that the fan assembly operates according to the original operation gear, and further user experience is improved.

In one embodiment, as shown in FIG. 4, step 300 includes:

step 410, controlling the fan assembly to reversely rotate under the condition that the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value;

step 420, controlling the fan assembly to operate at a first gear under the condition that the operation time of the reverse operation of the fan assembly is greater than or equal to a first preset time, and acquiring a first actual air pressure difference value again;

and step 430, judging whether the dust box is full of dust or not according to the first target air pressure difference value and the newly acquired first actual air pressure difference value.

Specifically, when the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value, the reverse operation of the fan assembly can be controlled, so as to overcome the problem of blockage of the filter assembly. Under the condition that the fan assembly continuously operates in the reverse rotation mode for the first preset time period, the fan assembly can be controlled to operate at the first gear, and the first actual air pressure difference value is determined again under the operation condition. And judging whether the dust box is full of dust or not according to the first target air pressure difference value and the redetermined first actual air pressure difference value. Specifically, the specific implementation manner of determining whether the dust box is full of dust according to the redetermined first actual air pressure difference value may refer to the specific implementation manner of determining whether the dust box is full of dust according to the first actual air pressure difference value and the first target air pressure difference value, and details are not repeated here.

In one embodiment, the step of determining whether the dust box is full of dust according to the first target air pressure difference value and the first actual air pressure difference value obtained again includes: and confirming that the dust box is full of dust under the condition that the obtained first actual air pressure difference value is larger than or equal to the first target air pressure difference value. Further, in the case that the first actual wind pressure difference value obtained again is smaller than the first target wind pressure difference value, it is determined that the dust box is not full of dust.

In this embodiment, through controlling the fan subassembly reversal operation to according to the first target wind pressure difference value and the first actual wind pressure difference value of confirming again after the reversal operation, judge whether the dirt box is full of dust, thereby can reduce the erroneous judgement that the filter assembly blockked up and arouse, and then improve the accuracy that the dirt box was full of dust judged.

In one embodiment, the method further comprises: acquiring the running time of the fan assembly, and entering step 100 under the condition that the running time of the fan assembly is longer than a second preset time.

The running time of the fan assembly refers to the total running time of the fan assembly. In one embodiment, the method and the device can initialize the running time of the fan assembly under the condition that the dust box is detected to be empty. The specific value of the second preset time period may be determined according to the size of the dust box and/or the historical cleaning record, which is not specifically limited in this application.

Specifically, considering that the dust collection device needs to be cleaned for a certain time to fully load the dust box, the method can obtain the operation duration of the fan assembly, and enter step 100 when the operation duration of the fan assembly is greater than a second preset duration, so as to realize the dust box full dust detection through steps 100 to 300. Therefore, dust box dust fullness detection is not required to be carried out all the time, so that the electric quantity of the dust suction device is saved, and processing resources used by the dust fullness detection can be reduced.

In one embodiment, the method further comprises:

under the condition that the dust box is full of dust, controlling the dust suction device to move to a dust collection base station so that the dust collection base station collects the contents in the dust box;

and/or

And reminding when the dust box is full of dust.

Specifically, in the case of a full dust box, the present application performs either or both of the following steps: (1) controlling the dust suction device to automatically move to a dust collection base station for collecting dust of the base station so as to empty the dust box; (2) the reminding information is output to remind a user to clean the dust box containing objects, and it can be understood that the reminding information can be output in any mode in the prior art, and the reminding information can be but not limited to pushing information to a related terminal, outputting the reminding information through an acoustic/optical circuit and/or controlling a fan assembly to stop running and the like.

In one embodiment, as shown in FIG. 5, a dust box fullness detection method is provided. In this example, the a-th gear is the highest gear. The method specifically comprises the following steps:

502, acquiring the running time of a fan assembly;

step 504, judging whether the operation time of the fan assembly is longer than a second preset time, if so, entering step 506, and if not, entering step 530;

step 506, controlling the fan assembly to operate at a gear B, and determining a first actual air pressure difference value;

step 508, acquiring a first target wind pressure difference value corresponding to the gear B;

step 510, determining whether the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value, if yes, entering step 512, and if not, entering step 530;

step 512, controlling the fan assembly to operate at the (B +1) th gear, and determining a second actual air pressure difference value;

step 514, determining whether the second actual wind pressure difference value is greater than or equal to the second target wind pressure difference value, if yes, going to step 516, and if not, going to step 530;

step 516, controlling the fan assembly to operate in the (B +2) th gear; determining a third actual wind pressure difference value;

step 518, determining whether the third actual wind pressure difference value is greater than or equal to the third target wind pressure difference value, if yes, entering step 520, and if not, entering step 530;

step 520, controlling the fan assembly to operate in a (B +3) th gear; determining a fourth actual wind pressure difference value;

step 522, determining whether the fourth actual wind pressure difference value is greater than or equal to the fourth target wind pressure difference value, if yes, going to step 524, and if not, going to step 530;

step 524, controlling the fan assembly to operate in the A-th gear, and determining a fifth actual wind pressure difference value in the operating state;

step 526, determining whether the fifth actual wind pressure difference value is greater than or equal to the corresponding fifth target wind pressure difference value, if yes, entering step 528, otherwise, entering step 530;

step 528, confirming that the dust box is full of dust, and sending out a reminding message or controlling the dust collection device to move to a dust collection base station for dust collection;

and step 530, controlling the fan assembly to continuously operate and work at the set gear.

In an embodiment, as shown in fig. 6, a method for detecting fullness in a dust box is provided, which specifically includes:

step 602, acquiring the operation time of a fan assembly;

step 604, judging whether the operation time of the fan assembly is longer than a second preset time, if so, entering step 606, and if not, entering step 618;

step 606, controlling the fan assembly to operate at a first gear, and determining a first actual air pressure difference value;

step 608, acquiring a first target wind pressure difference value corresponding to the first gear;

step 610, determining whether the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value, if yes, entering step 612, and if no, entering step 618;

step 612, after the fan assembly is controlled to reversely rotate for a first preset time, the fan assembly is controlled to operate at a first gear, and a first actual air pressure difference value is determined again;

step 614, determining whether the redetermined first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value, if so, entering step 616, otherwise, entering step 618;

step 616, confirming that the dust box is full of dust, and sending out a reminding message or controlling the dust collection device to move to a dust collection base station for dust collection;

and step 618, controlling the fan assembly to continue running and working at the set gear.

It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.

Based on the same inventive concept, the embodiment of the application also provides a dust box dust fullness detection device for realizing the dust box dust fullness detection method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the method, so that specific limitations in one or more embodiments of the dust box dust fullness detection device provided below can be referred to the limitations on the dust box dust fullness detection method in the above, and are not described again here.

In one embodiment, as shown in FIG. 7, a dust box fullness detection device is provided that can be applied to a dust extraction device. The dust collection device comprises a fan assembly and a dust box, wherein the fan assembly is communicated with the dust box and used for discharging gas in the dust box. Specifically, the full detection device of dirt box dirt of this application includes: first actual wind pressure difference value obtains module, first target wind pressure difference value and full judgement module of dirt, wherein:

In one embodiment, the dust fullness judging module includes a second difference value obtaining unit and a second difference value judging unit. The second difference obtaining unit is configured to, when the first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value, control the fan assembly to operate at a second gear if the first gear is not the highest gear, and obtain a second actual wind pressure difference value and a second target wind pressure difference value. And the second difference value judging unit is used for judging whether the dust box is full of dust or not according to the second actual air pressure difference value and the second target air pressure difference value.

The highest gear is a gear corresponding to the maximum working speed of the fan, and the fan speed corresponding to the second gear is greater than the fan speed corresponding to the first gear; the second actual air pressure difference value is the pressure difference between the actual air pressure value in the dust box and the actual air pressure value in the fan assembly under the condition that the fan assembly operates at the second gear; the second target air pressure difference value is the pressure difference between the air pressure value in the dust box and the air pressure value in the fan component under the condition that the fan component runs at the second gear and the dust box is full of dust.

In one embodiment, the second difference determining unit includes a third difference obtaining unit and a third difference determining unit. The third difference obtaining unit is configured to, when the second actual wind pressure difference value is greater than or equal to the second target wind pressure difference value, control the fan assembly to operate at a third gear if the second gear is not the highest gear, and obtain a third actual wind pressure difference value and a third target wind pressure difference value; wherein the third actual wind pressure difference value is a pressure difference between an actual wind pressure value in the dust box and an actual wind pressure value in the fan assembly when the fan assembly operates at the third gear; the third target air pressure difference value is the pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly under the condition that the fan assembly operates at the third gear and the dust box is full of dust; the second gear is the Nth gear, the third gear is the (N + M) th gear, and both N and M are positive integers.

And the third difference value judging unit is used for confirming that the dust box is full of dust if the third gear is the highest gear under the condition that the third actual air pressure difference value is greater than or equal to the third target air pressure difference value, otherwise, updating N to be (N + M), controlling the fan assembly to operate at the third gear, and performing the step of obtaining the third actual air pressure difference value and the third target air pressure difference value (namely, skipping to the third difference value obtaining unit).

In one embodiment, the second difference determining unit is further configured to determine that the dust box is not full of dust and control the fan assembly to operate in the first gear or the second gear when the third actual wind pressure difference is smaller than the third target wind pressure difference.

In one embodiment, the second gear is the highest gear. The second difference value judging unit is used for confirming that the dust box is full of dust under the condition that the second actual air pressure difference value is greater than or equal to the second target air pressure difference value; and under the condition that the second actual air pressure difference value is smaller than the second target air pressure difference value, determining that the dust box is not full of dust, and controlling the fan assembly to operate at the first gear.

In one embodiment, the dust fullness determining module includes a reverse control unit, a first difference obtaining unit, and a first difference determining unit. The reverse rotation control unit is used for controlling the fan assembly to reversely rotate under the condition that the first actual wind pressure difference value is larger than or equal to the first target wind pressure difference value. The first difference value obtaining unit is used for controlling the fan assembly to operate at the first gear under the condition that the operation time length of the reverse operation of the fan assembly is greater than or equal to a first preset time length, and obtaining the first actual air pressure difference value again. And the first difference value judging unit is used for judging whether the dust box is full of dust or not according to the first target air pressure difference value and the first actual air pressure difference value obtained again.

In one embodiment, the first difference value obtaining unit is configured to confirm that the dust box is full of dust if the retrieved first actual wind pressure difference value is greater than or equal to the first target wind pressure difference value.

In one embodiment, the dust box dust fullness detecting device further includes an operation duration judging module, and the operation duration judging module is configured to obtain an operation duration of the fan assembly, and enter a step of obtaining a first actual air pressure difference value (i.e., jump to the first actual air pressure difference value obtaining module) when the operation duration of the fan assembly is greater than a second preset duration.

In one embodiment, the dust box dust fullness detection device further comprises a movement control module and/or a reminding module. The mobile control module is used for controlling the dust suction device to move to the dust collection base station under the condition that the dust box is full of dust, so that the dust collection base station collects the contents in the dust box. The reminding module is used for reminding when the dust box is full of dust.

All or part of each module in the dust box dust fullness detection device can be realized through software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, there is provided a control module comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program implementing the steps of:

In one embodiment, the processor, when executing the computer program, further performs the steps of: under the condition that the first actual wind pressure difference value is larger than or equal to the first target wind pressure difference value, if the first gear is not the highest gear, controlling the fan assembly to operate at a second gear, and acquiring a second actual wind pressure difference value and a second target wind pressure difference value; and judging whether the dust box is full of dust or not according to the second actual air pressure difference value and the second target air pressure difference value.

In one embodiment, the processor, when executing the computer program, further performs the steps of: under the condition that the second actual wind pressure difference value is larger than or equal to the second target wind pressure difference value, if the second gear is not the highest gear, controlling the fan assembly to operate at a third gear, and acquiring a third actual wind pressure difference value and a third target wind pressure difference value; and under the condition that the third actual air pressure difference value is greater than or equal to the third target air pressure difference value, if the third gear is the highest gear, determining that the dust box is full of dust, otherwise, updating N to be (N + M), controlling the fan assembly to operate at the third gear, and performing the step of obtaining the third actual air pressure difference value and the third target air pressure difference value.

Wherein the third actual air pressure difference value is a pressure difference between an actual air pressure value within the dirt box and an actual air pressure value within the fan assembly when the fan assembly is operating at the third gear; the third target air pressure difference value is the pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly under the condition that the fan assembly operates at the third gear and the dust box is full of dust; the second gear is the Nth gear, the third gear is the (N + M) th gear, and both N and M are positive integers.

In one embodiment, the processor, when executing the computer program, further performs the steps of: and if the third actual air pressure difference value is smaller than the third target air pressure difference value, determining that the dust box is not full of dust, and controlling the fan assembly to operate at the first gear or the second gear.

In one embodiment, the second gear is the highest gear. The processor, when executing the computer program, further performs the steps of: and confirming that the dust box is full of dust under the condition that the second actual air pressure difference value is greater than or equal to the second target air pressure difference value.

In one embodiment, the processor, when executing the computer program, further performs the steps of: and under the condition that the second actual air pressure difference value is smaller than the second target air pressure difference value, determining that the dust box is not full of dust, and controlling the fan assembly to operate at the first gear.

In one embodiment, the processor when executing the computer program further performs the steps of: controlling the fan assembly to reversely operate under the condition that the first actual wind pressure difference value is larger than or equal to the first target wind pressure difference value; under the condition that the running time of the reverse running of the fan assembly is longer than or equal to a first preset time, controlling the fan assembly to run at the first gear, and obtaining the first actual air pressure difference value again; and judging whether the dust box is full of dust or not according to the first target air pressure difference value and the first actual air pressure difference value obtained again.

In one embodiment, the processor, when executing the computer program, further performs the steps of: and confirming that the dust box is full of dust under the condition that the obtained first actual air pressure difference value is larger than or equal to the first target air pressure difference value.

In one embodiment, the processor, when executing the computer program, further performs the steps of: and acquiring the operation time of the fan assembly, and entering the step of acquiring a first actual air pressure difference value under the condition that the operation time of the fan assembly is longer than a second preset time.

In one embodiment, the processor when executing the computer program further performs the steps of: under the condition that the dust box is full of dust, controlling the dust suction device to move to a dust collection base station so that the dust collection base station collects the contents in the dust box; and/or alerting in the event the dirt tray is full of dirt.

In one embodiment, the present application provides a dust suction apparatus, which may include a dust box, a fan assembly, a wind pressure difference detection module, and a control module in any of the above embodiments. Specifically, the dust box can be provided with a first air port and a second air port, wherein any one of the first air port and the second air port is an air inlet, and the rest one of the first air port and the second air port is an air outlet. The fan assembly is communicated with the first air opening and is used for exhausting gas in the dust removing box through the first air opening and/or the second air opening.

The wind pressure difference value detection module is a device, equipment or circuit capable of detecting the wind pressure difference value and is used for detecting the first actual wind pressure difference value. In some embodiments, the wind pressure difference value detection module may be further configured to detect a second actual wind pressure difference value and/or a third actual wind pressure difference value.

In one embodiment, the present application provides a dust extraction apparatus. The dust collection device comprises dust collection, a fan assembly, a wind pressure difference value detection module and the control module, wherein the control module is electrically connected with the wind pressure difference value detection module. Wherein, the dust box is provided with a first air port and a second air port. The fan assembly is communicated with the first air opening and is used for exhausting gas in the dust removing box through the first air opening and/or the second air opening.

The wind pressure difference value detection module is used for detecting a first actual wind pressure difference value, wherein the first actual wind pressure difference value is a pressure difference between an actual wind pressure value in the dust box and an actual wind pressure value in the fan assembly under the condition that the fan assembly operates at a first gear. It is understood that the wind pressure difference detection module may be implemented by any device, circuit or apparatus in the prior art, and the application is not limited thereto.

In one embodiment, the fan assembly includes an air outlet duct, which communicates with the first air opening. The dust collection device further comprises a filtering assembly, and the wind pressure difference value detection module comprises a first wind pressure sensor and a second wind pressure sensor. The filter assembly is arranged at the first air opening and covers the first air opening, and the filter assembly comprises a first surface facing the dust box. The first wind pressure sensor is arranged on the first surface and used for acquiring a wind pressure value in the dust box. The second wind pressure sensor is arranged in the wind outlet duct and used for acquiring a wind pressure value in the fan assembly. So, set up a wind pressure sensor through the surface at filter component towards the dirt box to detect the wind pressure value in the dirt box, thereby can prevent that the dust from polluting this wind pressure sensor, and then can improve the accuracy that detects.

In one embodiment, the Filter assembly may include at least 3 layers of Filter screen arrangements such as micro-filters, sponges, and HEPA (High Efficiency Filter) screens.

In one embodiment, the present application further provides an automatic cleaning device, which includes the dust suction device of any one of the above embodiments. It will be appreciated that the robotic cleaning device may be any device having robotic cleaning capabilities, such as an automatic (or semi-automatic) sweeper, and/or an automatic (or semi-automatic) mopping machine, for example.

In one embodiment, the construction of the robotic cleaning device may be as shown in fig. 8-10, and specifically includes a dirt box 700, a fan assembly, a filter assembly 900, and a housing 910. As shown in fig. 9, the dust box 700 includes a door 710 and a main body 720, and the door 710 and the main body 720 form a cavity. The dust box main body 720 is provided with a first air port 722, the door body 710 is provided with a second air port, and the fan assembly is communicated with the second air port. The filter assembly 900 is disposed at and covers the second air opening to filter dust, garbage and other objects.

As shown in fig. 10, the fan assembly may include a duct assembly 810, a fan and fan guard 820, the duct assembly 810 being connected to the housing 910 and secured by first ribs 830. The fan guard 820 covers the fan and is fixed by second ribs 840 provided at both sides of the fan guard 820.

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:

In one embodiment, the computer program when executed by the processor further performs the steps of: under the condition that the first actual wind pressure difference value is larger than or equal to the first target wind pressure difference value, if the first gear is not the highest gear, controlling the fan assembly to operate at a second gear, and acquiring a second actual wind pressure difference value and a second target wind pressure difference value; and judging whether the dust box is full of dust or not according to the second actual air pressure difference value and the second target air pressure difference value.

In one embodiment, the computer program when executed by the processor further performs the steps of: under the condition that the second actual wind pressure difference value is larger than or equal to the second target wind pressure difference value, if the second gear is not the highest gear, controlling the fan assembly to operate at a third gear, and acquiring a third actual wind pressure difference value and a third target wind pressure difference value; and under the condition that the third actual air pressure difference value is greater than or equal to the third target air pressure difference value, if the third gear is the highest gear, determining that the dust box is full of dust, otherwise, updating N to be (N + M), controlling the fan assembly to operate at the third gear, and performing the step of obtaining the third actual air pressure difference value and the third target air pressure difference value.

Wherein the third actual wind pressure difference value is a pressure difference between an actual wind pressure value in the dust box and an actual wind pressure value in the fan assembly when the fan assembly operates at the third gear; the third target air pressure difference value is a pressure difference between an air pressure value in the dust box and an air pressure value in the fan assembly under the condition that the fan assembly operates at the third gear and the dust box is full of dust; the second gear is an Nth gear, the third gear is an (N + M) th gear, and N and M are positive integers.

In one embodiment, the computer program when executed by the processor further performs the steps of: and if the third actual air pressure difference value is smaller than the third target air pressure difference value, determining that the dust box is not full of dust, and controlling the fan assembly to operate at the first gear.

In one embodiment, the second gear is the highest gear. The computer program when executed by the processor further realizes the steps of: and confirming that the dust box is full of dust under the condition that the second actual air pressure difference value is greater than or equal to the second target air pressure difference value.

In one embodiment, the computer program when executed by the processor further performs the steps of: and under the condition that the second actual air pressure difference value is smaller than the second target air pressure difference value, determining that the dust box is not full of dust, and controlling the fan assembly to operate at the first gear.

In one embodiment, the computer program when executed by the processor further performs the steps of: controlling the fan assembly to reversely operate under the condition that the first actual wind pressure difference value is larger than or equal to the first target wind pressure difference value; under the condition that the running time of the reverse running of the fan assembly is longer than or equal to a first preset time, controlling the fan assembly to run at the first gear, and obtaining the first actual air pressure difference value again; and judging whether the dust box is full of dust or not according to the first target air pressure difference value and the first actual air pressure difference value obtained again.

In one embodiment, the computer program when executed by the processor further performs the steps of: and confirming that the dust box is full of dust under the condition that the obtained first actual air pressure difference value is larger than or equal to the first target air pressure difference value.

In one embodiment, the computer program when executed by the processor further performs the steps of: and acquiring the operation time of the fan assembly, and entering the step of acquiring a first actual air pressure difference value under the condition that the operation time of the fan assembly is longer than a second preset time.

In one embodiment, the computer program when executed by the processor further performs the steps of: under the condition that the dust box is full of dust, controlling the dust suction device to move to a dust collection base station so that the dust collection base station collects the contents in the dust box; and/or alerting in the event that the dust box is full.

In one embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, performs the steps of:

acquiring a first target wind pressure difference value; the first target air pressure difference value is the pressure difference between the air pressure value in the dust box and the air pressure value in the fan component under the condition that the fan component operates at the first gear and the dust box is full of dust;

Wherein the third actual wind pressure difference value is a pressure difference between an actual wind pressure value in the dust box and an actual wind pressure value in the fan assembly when the fan assembly operates at the third gear; the third target air pressure difference value is a pressure difference between an air pressure value in the dust box and an air pressure value in the fan assembly under the condition that the fan assembly operates at the third gear and the dust box is full of dust; the second gear is the Nth gear, the third gear is the (N + M) th gear, and both N and M are positive integers.

In one embodiment, the computer program when executed by the processor further performs the steps of: and if the third actual air pressure difference value is smaller than the third target air pressure difference value, determining that the dust box is not full of dust, and controlling the fan assembly to operate at the first gear or the second gear.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), Magnetic Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the various embodiments provided herein may be, without limitation, general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, or the like.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. The dust box dust fullness detection method is characterized by being applied to a dust collection device, wherein the dust collection device comprises a fan assembly and a dust box; the fan assembly is communicated with the dust box and is used for exhausting gas in the dust box; the method comprises the following steps:

2. The method for detecting dust fullness in a dust box according to claim 1, wherein the step of adjusting the operating state of the fan assembly and determining whether the dust box is full of dust by combining the adjusted operating parameters of the fan assembly when the first actual air pressure difference is greater than or equal to the first target air pressure difference comprises:

under the condition that the first actual wind pressure difference value is larger than or equal to the first target wind pressure difference value, if the first gear is not the highest gear, controlling the fan assembly to operate at a second gear, and acquiring a second actual wind pressure difference value and a second target wind pressure difference value;

judging whether the dust box is full of dust or not according to the second actual air pressure difference value and the second target air pressure difference value;

3. The dust box dust fullness detecting method according to claim 2, wherein the step of determining whether the dust box is full of dust according to the second actual air pressure difference value and the second target air pressure difference value comprises:

under the condition that the second actual wind pressure difference value is larger than or equal to the second target wind pressure difference value, if the second gear is not the highest gear, controlling the fan assembly to operate at a third gear, and acquiring a third actual wind pressure difference value and a third target wind pressure difference value; wherein the third actual wind pressure difference value is a pressure difference between an actual wind pressure value in the dust box and an actual wind pressure value in the fan assembly when the fan assembly operates at the third gear; the third target air pressure difference value is the pressure difference between the air pressure value in the dust box and the air pressure value in the fan assembly under the condition that the fan assembly operates at the third gear and the dust box is full of dust; the second gear is an Nth gear, the third gear is an (N + M) th gear, and both N and M are positive integers;

and under the condition that the third actual air pressure difference value is greater than or equal to the third target air pressure difference value, if the third gear is the highest gear, determining that the dust box is full of dust, otherwise, updating N to be (N + M), controlling the fan assembly to operate at the third gear, and performing the step of obtaining the third actual air pressure difference value and the third target air pressure difference value.

4. The dust box dust fullness detecting method according to claim 3, wherein the step of determining whether the dust box is full of dust according to the second actual air pressure difference value and the second target air pressure difference value further comprises:

and if the third actual air pressure difference value is smaller than the third target air pressure difference value, determining that the dust box is not full of dust, and controlling the fan assembly to operate at the first gear or the second gear.

5. The dust box dust fullness detecting method according to claim 2, wherein the second gear is the highest gear;

judging whether the dust box is full of dust according to the second actual air pressure difference value and the second target air pressure difference value, wherein the step comprises the following steps of:

confirming that the dust box is full of dust when the second actual air pressure difference value is greater than or equal to the second target air pressure difference value;

and under the condition that the second actual air pressure difference value is smaller than the second target air pressure difference value, determining that the dust box is not full of dust, and controlling the fan assembly to operate at the first gear.

6. The method for detecting dust fullness in a dust box according to claim 1, wherein the step of adjusting the operating state of the fan assembly and determining whether the dust box is full of dust by combining the adjusted operating parameters of the fan assembly when the first actual air pressure difference is greater than or equal to the first target air pressure difference comprises:

controlling the fan assembly to reversely operate under the condition that the first actual wind pressure difference value is larger than or equal to the first target wind pressure difference value;

under the condition that the running time of the reverse running of the fan assembly is longer than or equal to a first preset time, controlling the fan assembly to run at the first gear, and obtaining the first actual air pressure difference value again;

and judging whether the dust box is full of dust or not according to the first target air pressure difference value and the first actual air pressure difference value obtained again.

7. The dust box dust fullness detecting method according to claim 6, wherein the step of determining whether the dust box is full of dust according to the first target air pressure difference value and the first actual air pressure difference value obtained again comprises:

and confirming that the dust box is full of dust under the condition that the obtained first actual air pressure difference value is larger than or equal to the first target air pressure difference value.

8. The dust box dust fullness detecting method of any one of claims 1 to 7, further comprising:

and acquiring the operation time of the fan assembly, and entering the step of acquiring a first actual air pressure difference value under the condition that the operation time of the fan assembly is longer than a second preset time.

9. The dust box dust fullness detecting method of any one of claims 1 to 7, further comprising:

and/or

And reminding when the dust box is full of dust.

10. The full dust detection device of the dust box is characterized by being applied to a dust collection device, wherein the dust collection device comprises a fan assembly and the dust box; the fan assembly is communicated with the dust box and is used for exhausting gas in the dust box; the device comprises:

11. A control module comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any one of claims 1 to 9 when executing the computer program.

12. A dust extraction, characterized in that the dust extraction comprises:

the dust box is provided with a first air port and a second air port;

the control module of claim 11, electrically connected to the wind pressure differential detection module.

13. The vacuum cleaner of claim 12, wherein the fan assembly includes an outlet duct, the outlet duct being in communication with the first air opening; the dust collection device also comprises a filter assembly, and the wind pressure difference value detection module comprises a first wind pressure sensor and a second wind pressure sensor;

the filter assembly is arranged at the first air opening and covers the first air opening, and comprises a first surface facing the dust box; the first wind pressure sensor is arranged on the first surface and used for acquiring a wind pressure value in the dust box; the second wind pressure sensor is arranged in the wind outlet duct and used for acquiring a wind pressure value in the fan assembly.

14. An automatic cleaning apparatus, characterized by comprising a suction device according to claim 12 or 13.

15. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 9.

16. A computer program product comprising a computer program, characterized in that the computer program realizes the steps of the method of any one of claims 1 to 9 when executed by a processor.