Cleaning equipment

Abstract

The utility model provides cleaning equipment, which is used for cleaning a to-be-cleaned surface and comprises a machine body, a cleaning device and a cleaning device, the display device is arranged on the machine body and comprises a first display area and a second display area; the first display area is located on the outer edge of the display device, and the first display area is used for displaying the smudginess degree of the to-be-cleaned face; the first display area is provided with a first display assembly, the second display area is provided with a second display assembly, and the first display assembly is different from the second display assembly. According to the display device in the cleaning equipment, the smudginess degree of the to-be-cleaned face is displayed through the first display area, the equipment information of the cleaning equipment is displayed through the second display area, the original design that a plurality of light sources are arranged on a circuit board is replaced, the number of the light sources is reduced, meanwhile, the size of the circuit board can be reduced, and the cost is reduced. And under the condition that the display content and the display logic are kept unchanged, the cost is obviously reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a cleaning equipment. Background Art

[0002] With the advancement of science and technology, smart cleaning equipment is increasingly entering people's lives. In current cleaning equipment, various information about the cleaning equipment is displayed through an LED display screen. Multiple LED lights of different colors are set on the display circuit board, and then a plastic bracket is installed. There is a hollow on the bracket to display the content. In this way, the light of the LED is limited to the display window of the plastic bracket, and a film paper showing the content is attached to the bracket. In this solution, the most expensive part is the circuit board and the LED lights of different colors on the circuit board. A circuit board of a cleaning device usually has dozens of LED lights of two colors, and the display of different lights represents the degree of dirtiness of the cleaning surface of the cleaning equipment during the working process. A display screen has a high cost due to the large number of LED lights; and because the display area is large, the circuit board matching the display usually needs to be set to the same size as the display area, resulting in a circuit board that is too large and too expensive. Utility Model Content

[0003] In view of this, an embodiment of the present application provides a cleaning device to solve the above-mentioned problems existing in the prior art.

[0004] According to a first aspect of an embodiment of the present application, there is provided a cleaning device for cleaning a surface to be cleaned, comprising:

[0005] Body;

[0006] A display device, disposed on the body, comprising a first display area and a second display area;

[0007] The first display area is located at the outer edge of the display device, and the first display area is used to display the dirtiness of the surface to be cleaned;

[0008] The first display area is provided with a first display component, the second display area is provided with a second display component, and the first display component is different from the second display component.

[0009] The display device in the cleaning equipment provided in the present application is provided with a first display area and a second display area. The first display area displays the degree of dirtiness of the surface to be cleaned. The first display component in the first display area is different from the second display component in the second display area. While maintaining the display content and display logic unchanged, the cost is significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1is a schematic diagram of a display device provided by an embodiment of the present application;

[0011] Figure 2 is a schematic diagram of a first display component provided by an embodiment of the present application;

[0012] Figure 3 is a schematic diagram of a bracket provided in one embodiment of the present application;

[0013] Figure 4 is a schematic diagram of the structure of a detection component provided in an embodiment of the present application;

[0014] Figure 5 is a circuit diagram of a receiving circuit provided by an embodiment of the present application;

[0015] Figure 6 is a circuit diagram of a transmitting circuit provided in an embodiment of the present application;

[0016] Figure 7 is a circuit diagram of an amplifier circuit provided in an embodiment of the present application;

[0017] Figure 8 is a circuit diagram of a comparison amplifier circuit provided in an embodiment of the present application;

[0018] Fig. 9 is a schematic diagram of the structure of a detection component provided in an embodiment of the present application;

[0019] Fig.10 It is a schematic diagram of the circuit structure of a detection component provided in one embodiment of the present application.

[0020] Reference numerals:

[0021] 110, light guide strip, 1101, first end, 1102, second end;

[0022] 120. A first color light source;

[0023] 130. A second color light source;

[0024] 140, bracket, 1401, groove;

[0025] 150. Signal transmitting tube;

[0026] 160, signal receiving tube;

[0027] 170. Detection circuit;

[0028] 180. Inspection pipeline;

[0029] 190. Driver circuit board. DETAILED DESCRIPTION

[0030] Many specific details are described in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0031] The terms used in one or more embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of the present application. The singular forms of "a", "said" and "the" used in one or more embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of the present application refers to and includes any or all possible combinations of one or more associated listed items.

[0032] It should be understood that, although the terms first, second, etc. may be used to describe various information in one or more embodiments of the present application, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0033] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0034] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0035] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0036] In the present application, a cleaning device is provided, which is described in detail one by one in the following embodiments.

[0037] In a specific embodiment provided in the present application, a cleaning device is provided, the cleaning device comprising:

[0038] Body;

[0039] A display device, disposed on the body, comprising a first display area and a second display area;

[0040] The first display area is located at the outer edge of the display device, and the first display area is used to display the dirtiness of the surface to be cleaned;

[0041] The first display area is provided with a first display component, the second display area is provided with a second display component, and the first display component is different from the second display component.

[0042] In the embodiments provided in the present application, the cleaning device may be a sweeping robot, a floor scrubber, a window washer, etc. In the embodiments provided in the present application, the specific form of the cleaning device is not limited, and the actual application shall prevail. The plane on which the cleaning device works is the surface to be cleaned. For example, when the cleaning device is a sweeping robot, the surface to be cleaned is the ground; when the cleaning device is a window washer, the surface to be cleaned is the window.

[0043] A display device is provided in the cleaning device, and the display device is provided on the body of the cleaning device. The display device includes a first display area and a second display area. The first display area is located outside the display device and is used to display the degree of dirtiness of the surface to be cleaned; the second display area is used to display device information of the cleaning device. A first display component is provided in the first display area, and a second display component is provided in the second display area. The first display component is different from the second display component.

[0044] In a specific embodiment provided in the present application, the first display component includes a light guide, and the second display component includes a driving circuit board, on which a display light is provided. The light guide is used to display the degree of dirtiness of the surface to be cleaned of the cleaning device during operation, and the second display component is used to display device information of the cleaning device, such as the network information, power information, water tank information, etc. of the cleaning device. In the embodiment provided in the present application, the specific content of the device information is not limited, and is subject to actual application.

[0045] In a specific embodiment provided in the present application, the light guide is a light guide belt disposed around the outer edge of the display device, the second display area is located within the surrounding range of the first display area, and the size of the circuit board does not exceed the size limited by the surrounding range of the light guide belt. In the embodiment provided in the present application, the light guide can be specifically understood as a light guide belt, which is disposed around the outer edge of the display device, the second display area is located within the surrounding range of the first display area, and further, the driving circuit board is disposed within the surrounding range of the light guide belt, that is, the size of the driving circuit board does not exceed the size limited by the surrounding range of the light guide belt.

[0046] See also Figure 1 , Figure 1A schematic diagram of a display device is shown, which includes a light guide strip 110 and a driving circuit board 190. In practical applications, the display device may be covered with a film (not shown) with a hollow area on the film, and the hollow area may display the display lights of the light guide strip and the driving circuit board.

[0047] In practical applications, the driving circuit board 190 is provided with a plurality of display lights, such as Figure 1 As shown, the driving circuit board 190 is arranged in the area surrounded by the light guide belt 110, and the equipment information of the cleaning equipment can be displayed in the second display area on the display device, such as power level, network connection information, water spraying information, etc.

[0048] In a specific embodiment provided in this application, see Figure 2 , Figure 2 A schematic diagram of a first display assembly provided by an embodiment of the present application is shown, including:

[0049] The light guide strip 110 has two opposite ends, which are respectively denoted as a first end 1101 and a second end 1102 .

[0050] The first display component further includes: a light source, which includes a first color light source 120 and a second color light source 130. The first light emitted by the first color light source 120 is constructed to enter from the first end 1101 and propagate along the light guide belt 110 toward the second end 1102; the second light emitted by the second color light source 130 is constructed to enter from the second end 1102 and propagate along the light guide belt 110 toward the first end 1101. The first light and the second light display the degree of dirtiness of the surface to be cleaned.

[0051] like Figure 2 As shown, in practical applications, the first display component may be in a strip shape, such as Figure 2 As shown, the first display assembly includes a light guide strip 110, a first color light source 120, and a second color light source 130. The light guide strip 110 has two opposite ends, namely a first end 1101 and a second end 1102. The first light emitted by the first color light source 120 is configured to enter from the first end 1101 and propagate along the light guide strip 110 in the direction of the second end 1102; the second light emitted by the second color light source 130 is configured to enter from the second end 1102 and propagate along the light guide strip 110 in the direction of the first end 1101.

[0052] Furthermore, the light intensities of the first color light source and the second color light source are adjustable.

[0053] In practical applications, the first color light source 120 may be a red light source, and the second color light source 130 may be a blue light source. Furthermore, the first color light source 120 may be a red LED lamp, and the second color light source 130 may be a blue LED lamp.

[0054] The first color light source and the second color light source are both light sources with adjustable light intensity. In practical applications, different meanings can be represented according to the light intensity. For example, the first color light source and the second color light source can represent the degree of dirtiness of the cleaning device when cleaning the working surface. If the light intensity of the first color light source is stronger, it means that the working surface is dirtier, and if the light intensity of the second color light source is stronger, it means that the working surface is cleaner.

[0055] In practical applications, the first color light source and the second color light source, in addition to representing the degree of dirtiness of the surface to be cleaned, can also represent the power status of the cleaning equipment. A stronger light intensity of the first color light source indicates sufficient power, while a stronger light intensity of the second color light source indicates insufficient power. The first color light source and the second color light source can also represent the dirtiness information of the sewage tank in the cleaning equipment. A stronger light intensity of the first color light source indicates that the sewage tank is relatively dirty, while a stronger light intensity of the second color light source indicates that the sewage tank is relatively clean.

[0056] In practical applications, the specific meanings of the first color light source and the second color light source may be based on the practical application and are not limited in this application.

[0057] In a specific embodiment provided in the present application, the display device also includes a bracket, the bracket has a first area and a second area, the first area is arranged along the outer edge of the bracket, the first area is provided with a groove, and the light guide strip is arranged in the groove; the second area is used to adapt to the driving circuit board.

[0058] In practical applications, the first display component and the second display component are two independent components. In order to fix the two display components in the display device, a bracket is also provided in the display device. The bracket has a first area and a second area, wherein the first area is provided along the outer edge of the bracket, and a groove is provided in the first area, and the light guide can be provided in the groove for fixing. The second area is used to place the driver circuit board. Furthermore, the driver circuit board and the film paper are respectively provided on both sides of the bracket. The film paper is marked with a device attribute for indicating the display light represents. The film paper is also provided with a hollow area, and the display light can display light through the hollow area, so that the display light of the display light and the device attribute on the film paper represent what device attribute information the display light indicates.

[0059] Furthermore, the bracket can be set to different shapes according to actual conditions, such as circular, rectangular, triangular, trapezoidal, etc. In this application, the shape of the bracket is not limited. For the sake of convenience, in the specific implementation provided in this application, the bracket is circular as an example for explanation. Figure 3 , Figure 3 A schematic diagram of a bracket in a specific embodiment of the present application is shown, and the bracket is a circular bracket, see Figure 3 A groove 1401 is provided at the edge of the bracket 140 , and the light guide belt 110 can be disposed in the groove 1401 .

[0060] In practical applications, the groove of the bracket can also be configured to form a non-enclosed ring structure, the light guide belt 110 is arranged in the groove, and the first light and the second light emitted by the first color light source and the second color light source are respectively configured to propagate along the ring-shaped light guide belt from both ends of the light guide belt, see Figure 1 ,like Figure 1 As shown, the light guide belt 110 forms a non-closed ring structure, and the first end and the second end are close to each other. The light guide belt forming a non-closed ring structure can be set in the groove 1401 on the bracket 140, so as to fix the light guide belt on the bracket 140.

[0061] In practical applications, since the light guide belt can be installed in the groove of the bracket, and the area in the groove cannot be seen after the light guide belt is installed in the groove, the area of ​​the light guide belt in the groove can be set as a light-shielding area, such as a frosted area; and the area of ​​the light guide belt outside the groove can be set as a light-transmitting area, such as a transparent area. This setting can make the light more concentrated in the light-transmitting area to avoid light dispersion and insufficient light.

[0062] Through the method provided in the embodiment of the present application, the original display area of ​​the cleaning equipment is divided into a first display area and a second display area. The dirtiness of the surface to be cleaned is displayed in the first display area, and the equipment attribute information of the cleaning equipment is displayed in the second display area. Furthermore, the dirtiness of the surface to be cleaned is displayed in the first display area by means of a light guide belt and two light sources, and the equipment attribute information of the cleaning equipment is displayed in the second display area by means of display lights on a driving circuit board. The light guide belt and two light sources replace the original solution of multiple LED lights, thereby solving the problem of displaying the dirtiness of the surface to be cleaned, while also reducing the size of the driving circuit board and reducing the cost of the driving circuit board.

[0063] In the specific implementation provided in the present application, the first display area of ​​the display device represents the different degrees of dirtiness of the ground. The current cleaning equipment relies on dirtiness detection circuits to detect dirtiness information of the ground. Specifically, it is achieved by transmitting infrared signals through infrared transmitting tubes and infrared receiving tubes. Furthermore, the intensity of the infrared transmitting tube is fixed, and the degree of dirtiness is judged by the signal of the infrared receiving tube. In practical applications, because the dirtiness of the detection pipeline itself and the degree of wear of the pipeline are different, it is necessary to add an additional calibration circuit, which increases the complexity of logical judgment. In addition, the calibration circuit also increases the cost of using components of the cleaning equipment. In the current detection device, software detection of the microcontroller unit is also required. The logic judgment speed is slow, and the microcontroller unit and the corresponding software judgment logic must be used, which is more troublesome.

[0064] Based on this, in order to further improve the judgment logic of the cleaning device, it can be quickly displayed on the display device. In a specific embodiment provided in the present application, the cleaning device may also include:

[0065] A detection component configured to obtain dirt information;

[0066] The first color light source and the second color light source are configured to operate at the same or different powers and display the same or different light intensities based on the dirtiness information.

[0067] Specifically, taking the total light intensity of the first color light source and the second color light source as 100% as an example, the first color light source represents dirtiness, and the second color light source represents cleanliness. When the dirtiness information is 30%, the light intensity of the first color light source can be 30%, and the light intensity of the second color light source can be 70%; when the dirtiness information is 60%, the light intensity of the first color light source can be 60%, and the light intensity of the second color light source can be 40%.

[0068] In actual applications, different colors displayed in the display device represent different degrees of dirtiness of the ground. For example, the first color light source is red, and the second color light source is blue. Blue represents that the ground is very clean, and the entire cleaning device is in low-power mode at this time. Red represents that the ground is very dirty, and the entire cleaning device is in high-power mode at this time.

[0069] When the red light is on and the blue light is off, the light guide is red. When the red light is off and the blue light is on, the light guide is blue. In the case of red and blue mixed colors, the red and blue lights can be set to a modulation brightness of 0-100%. When the red light intensity is greater than the blue light intensity, the light guide is displayed in red-purple. The more reddish it is, the dirtier the ground is, and the higher the cleaning power is. When the red light intensity is less than the blue light intensity, the light guide is blue-purple. The more blue it is, the dirtier the ground is, and the lower the cleaning power is.

[0070] By setting two light sources of different colors at both ends of the light guide strip, the original design of setting multiple light sources on the circuit board is replaced. While reducing the number of light sources, the size of the circuit board can also be reduced, significantly reducing costs while maintaining the display content and display logic unchanged.

[0071] In a specific embodiment provided in the present application, the detection component specifically includes:

[0072] A signal transmitting tube and a signal receiving tube, wherein the signal transmitting tube and the signal receiving tube are arranged on opposite sides of the detection pipeline;

[0073] The detection circuit is configured to be connected to the signal transmitting tube and the signal receiving tube, and is used to detect the first current of the signal receiving tube, adjust the second current of the signal transmitting tube according to the first current, and determine the dirt information of the liquid in the detection pipeline according to the second current.

[0074] The detection component is used to detect the dirt information of the cleaning equipment. The dirt information of the cleaning equipment is used to represent the dirtiness of the working surface. The dirtier the dirt information is, the dirtier the working surface is; the cleaner the dirt information is, the cleaner the working surface is.

[0075] Furthermore, the detection component includes a signal transmitting tube and a signal receiving tube. The signal transmitting tube sends out a detection signal, and the detection signal is received by the signal receiving tube. The signal transmitting tube and the signal receiving tube are arranged on opposite sides of the detection pipeline. The detection signal sent by the signal transmitting tube passes through the detection pipeline and can be received by the detection receiving tube arranged in the countermeasure. Through the detection circuit of the detection component, the dirt information in the detection pipeline is further determined.

[0076] See also Figure 4 , Figure 4 FIG. 1 shows a schematic diagram of the structure of a detection component provided in an embodiment of the present application. Figure 4 As shown, the detection component includes a signal transmitting tube 150, a signal receiving tube 160, a detection circuit 170 and a detection pipe 180. In actual applications, when the cleaning equipment is working, sewage will flow through the detection pipe 180, and the signal transmitting tube 150 will send out an infrared signal, which will reach the signal receiving tube 160 through the detection pipe. The detection circuit 170 is respectively connected to the signal transmitting tube 150 and the signal receiving tube 160, detects the first current in the signal receiving tube 160, and adjusts the second current in the signal transmitting tube 150 according to the first current, and finally further determines the dirt information in the detection pipe 180 according to the second current.

[0077] In a specific implementation provided in the present application, the detection circuit includes:

[0078] A receiving circuit is configured to detect a first current of the signal receiving tube and generate a first voltage according to the first current;

[0079] a signal processing circuit configured to determine a second voltage according to a first voltage of a receiving circuit and a preset voltage threshold;

[0080] The transmitting circuit is configured to determine a second current of the signal transmitting tube according to the second voltage so that the first voltage is equal to a preset voltage threshold, and to determine contamination information in the detection pipeline according to the second current.

[0081] The receiving circuit specifically refers to a circuit connected to the signal receiving tube, which is used to detect the first current in the signal receiving tube. A sampling resistor is provided in the receiving circuit, and the first voltage in the signal receiving tube is determined by the sampling resistor and the first current.

[0082] The signal processing circuit specifically refers to a circuit used to process the voltage generated by the signal. In practical applications, a preset voltage threshold is set in the signal processing circuit. A comparison is performed between the first voltage and the preset voltage threshold. Based on the comparison result, the second voltage can be further adjusted. The second voltage specifically refers to the voltage of the transmitting circuit.

[0083] The transmitting circuit specifically refers to a circuit connected to a signal transmitting tube, which is used to detect the second current in the signal transmitting tube. After the second voltage of the transmitting circuit is determined in the signal processing circuit, the second current in the transmitting circuit can be further adjusted according to the second voltage of the transmitting circuit, thereby enhancing or weakening the signal in the signal transmitting tube. After finally reaching a balance, the contamination information can be determined according to the second current.

[0084] The detection method provided in the present application detects dirt information in the detection pipeline through a detection circuit, does not require software control, does not require MCU and program support, has low cost, high speed and high reliability.

[0085] See also Figure 5 , Figure 5 The circuit diagram of a receiving circuit provided by an embodiment of the present application is shown. The receiving circuit is used to detect the current of the signal receiving tube and generate a first voltage on the resistor. Figure 5 As shown, the receiving circuit is mainly composed of resistors and capacitors, R10 is the receiving sampling resistor, D2 is the signal receiving tube, R3 plays a role of current limiting, and capacitors EC1 and C2 play a filtering role.

[0086] See also Figure 6 , Figure 6 A circuit schematic diagram of a transmitting circuit provided in an embodiment of the present application is shown. The transmitting circuit is used to control and change the current of a signal transmitting tube. Specifically, the transmitting circuit includes a transistor Q1 and a sampling resistor R11, D1 is a signal transmitting tube, R1 is a current limiting resistor, and R7 is a transistor current limiting resistor.

[0087] In a specific implementation provided in the present application, the signal processing circuit includes:

[0088] A signal amplifying circuit is configured to amplify the first voltage to generate a comparison amplified voltage;

[0089] The comparison amplifier circuit is configured to determine the second voltage according to the comparison amplified voltage and a preset voltage threshold.

[0090] In practical applications, the voltage value of the first voltage is very small. If the first voltage is not amplified, it will be difficult to collect the first voltage. If the preset voltage threshold is set to a small value, a slight voltage change will exceed the preset voltage threshold, resulting in frequent and uncontrollable voltage fluctuations. Therefore, a signal amplification circuit is included in the signal processing circuit to amplify the first voltage and generate a corresponding comparison amplification voltage, thereby facilitating the subsequent comparison amplification circuit to compare the voltages.

[0091] The comparison amplifier circuit is used to compare the comparison amplified voltage after receiving amplification with the preset voltage threshold, amplify the error, and use the voltage after error amplification to feedback and adjust the current of the signal transmitting tube, so as to finally achieve a balance between the amplified voltage and the preset voltage threshold.

[0092] Furthermore, the signal amplification circuit includes:

[0093] A first resistor is configured to set a voltage amplification factor;

[0094] The first operational amplifier chip is configured to amplify the first voltage according to the voltage amplification factor to generate a comparison amplified voltage.

[0095] See also Figure 7 , Figure 7 FIG. 1 shows a circuit diagram of an amplifier circuit provided in an embodiment of the present application. The amplifier circuit performs amplification processing on the first voltage in the receiving circuit. Figure 7 The amplifier circuit includes a first operational amplifier chip U1B, through which the first voltage can be amplified. R5 and R2 are first resistors for setting the voltage amplification factor, R8 is an output resistor, and C1 is a frequency compensation resistor.

[0096] Furthermore, the comparison amplifier circuit includes:

[0097] a second resistor configured to set a preset voltage threshold;

[0098] The second operational amplifier chip is configured to determine the second voltage according to the comparison of the amplified voltage and the preset voltage threshold.

[0099] See also Figure 8 , Figure 8FIG. 1 shows a circuit diagram of a comparison amplifier circuit provided by an embodiment of the present application. The comparison amplifier circuit compares the comparison amplified voltage after receiving amplification with a preset voltage threshold. Figure 8 The comparison amplifier circuit includes a second operational amplifier chip U1A, and the comparison amplifier circuit and the preset voltage threshold are compared by the second operational amplifier chip U1A. R4, R6, and R9 are second resistors for adjusting the preset voltage threshold, and C3, C5, and C6 are filter capacitors.

[0100] The second operational amplifier chip is further configured as:

[0101] When the compared and amplified voltage is greater than the preset voltage threshold, reducing the second voltage;

[0102] When the compared and amplified voltage is less than the preset voltage threshold, the second voltage is increased.

[0103] Specifically, in the comparison amplifier circuit, when the comparison amplification voltage is greater than the preset voltage threshold, it means that the signal of the signal transmitting tube is strong, and the signal strength of the signal transmitting tube can be reduced; when the comparison amplification voltage is less than the preset voltage threshold, it means that the signal of the signal transmitting tube is weak, and the signal strength of the signal transmitting tube needs to be increased.

[0104] In actual applications, when the cleaning equipment just starts working, the first current detected by the receiving circuit is 0A and the first voltage is 0V. After being processed by the signal amplification circuit and the comparison amplification circuit, a larger second voltage is output to increase the driving current of the signal transmitting tube, thereby increasing the signal strength of the signal transmitting tube.

[0105] After the signal strength of the signal transmitting tube increases, the signal strength of the signal receiving tube increases, the first current of the signal receiving tube increases, the sampling resistor voltage increases, and thus the first voltage increases. The first voltage is then processed by the signal amplification circuit to obtain a comparison amplification voltage, which is input into the comparison amplification circuit.

[0106] In the comparison amplifier circuit, the comparison amplification voltage is compared with the preset voltage threshold. If the comparison amplification voltage is less than the preset voltage threshold, the second voltage is increased, thereby increasing the driving current of the signal transmitting tube, thereby increasing the signal strength of the signal transmitting tube; if the comparison amplification voltage is greater than the preset voltage threshold, the second voltage is reduced, thereby reducing the driving current of the signal transmitting tube, thereby reducing the signal strength of the signal transmitting tube. Finally, in the comparison amplifier circuit, a balance is achieved between the comparison amplification voltage and the preset voltage threshold.

[0107] After reaching a balance, the second current in the transmitting circuit is output according to a preset rule to represent the dirt information in the detection pipeline. When the dirt information in the detection pipeline changes, the balance point in the comparison amplifier circuit is re-established to determine the dirt information of the detection pipeline again.

[0108] See also Fig. 9 and Fig.10 , Fig. 9 A schematic diagram of the structure of a detection component provided in an embodiment of the present application is shown. Fig.10 This is a schematic diagram of the circuit structure of the detection component. Fig. 9 and Fig.10 As shown, a signal transmitting tube and a signal receiving tube are arranged opposite to each other on both sides of the pipeline, the signal receiving tube is connected to a receiving circuit, and the receiving circuit detects a first current in the signal receiving tube and obtains a first voltage according to a sampling resistor R10 in the receiving circuit.

[0109] R5 and R2 in the signal amplifier circuit are used to set the voltage amplification factor. The first voltage is amplified through the operational amplifier chip U1B to generate a comparison amplification voltage. In the comparison amplifier circuit, resistors R4, R6 and R9 are used to determine the preset voltage threshold, and the comparison amplification voltage is compared with the preset voltage threshold through the operational amplifier chip U1A to determine the second voltage.

[0110] In the transmitting circuit, the second current of the transmitting circuit is adjusted through R7, thereby adjusting the emission intensity of the signal transmitting tube, and finally reaching a balance in the comparison amplifier circuit. At this time, the second current of the transmitting circuit is sampled through the sampling resistor R11 to determine the dirt information in the pipeline. The dirt information is sent to the control chip, and then the control chip adjusts the light intensity of the first color light source and the second color light source according to the dirt information.

[0111] Through the detection circuit provided in the embodiment of the present application, the signal of the signal receiving tube is fed back to the signal transmitting tube, and a preset voltage threshold is set in the signal processing circuit to perform dynamic balance between the signal transmitting tube and the signal receiving tube, thereby realizing the detection of the degree of contamination of the pipeline. Compared with the traditional solution, the cost of components is greatly reduced, and the complexity of implementation is also reduced. There is no need to introduce single-chip microcomputer control adjustment, and only hardware settings are required. Fast and accurate detection can be achieved without software applications, and the contamination information can be quickly displayed at the display device.

[0112] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A cleaning device for cleaning a surface to be cleaned, characterized in that: include: Body; A display device, disposed on the body, comprising a first display area and a second display area; The first display area is located at the outer edge of the display device, and the first display area is used to display the dirtiness of the surface to be cleaned; The first display area is provided with a first display component, the second display area is provided with a second display component, and the first display component is different from the second display component.

2. The cleaning device according to claim 1, characterized in that The first display component includes a light guide, and the second display component includes a driving circuit board, on which a display light is arranged.

3. The cleaning device according to claim 2, characterized in that The light guide member is a light guide belt disposed around the outer edge of the display device, the second display area is located within the surrounding range of the first display area, and the size of the driving circuit board does not exceed the size limited by the surrounding range of the light guide belt.

4. The cleaning device according to claim 3, characterized in that The light guide strip has two opposite ends, which are respectively denoted as a first end and a second end; The first display component also includes: a light source, which includes a first color light source and a second color light source. The first light emitted by the first color light source is constructed to enter from the first end and propagate along the light guide belt toward the second end; the second light emitted by the second color light source is constructed to enter from the second end and propagate along the light guide belt toward the first end. The first light and the second light display the degree of dirtiness of the surface to be cleaned.

5. The cleaning device according to claim 3, characterized in that The display device includes a bracket, the bracket has a first area and a second area, the first area is arranged along the outer edge of the bracket, the first area is provided with a groove, the light guide belt is arranged in the groove; the second area is used to adapt to the driving circuit board.

6. The cleaning device according to claim 5, characterized in that The area of ​​the light guide belt within the groove is set as a light-shielding area, and the area outside the groove is set as a light-transmitting area.

7. The cleaning device according to claim 4, characterized in that The light guide belt is configured to form a non-closed annular structure, and the first light beam and the second light beam emitted by the first color light source and the second color light source are respectively configured to propagate along the annular light guide belt from both ends of the light guide belt.

8. The cleaning device according to claim 4, characterized in that The first color light source is a red light source, and the second color light source is a blue light source.

9. The cleaning device according to claim 4, characterized in that Also includes: A detection component, wherein the detection component is configured to obtain dirt information; The first color light source and the second color light source are configured to operate at the same or different powers based on dirt information.

10. The cleaning device according to claim 9, characterized in that The detection component comprises: A signal transmitting tube and a signal receiving tube, wherein the signal transmitting tube and the signal receiving tube are arranged on opposite sides of the detection pipeline; The detection circuit is configured to be connected to the signal transmitting tube and the signal receiving tube, and is used to detect the first current of the signal receiving tube, adjust the second current of the signal transmitting tube according to the first current, and determine the dirt information of the liquid in the detection pipeline according to the second current.

11. The cleaning device according to claim 10, characterized in that The detection circuit comprises: A receiving circuit is configured to detect a first current of the signal receiving tube and generate a first voltage according to the first current; A signal processing circuit configured to determine a second voltage according to a first voltage of a receiving circuit and a preset voltage threshold; The transmitting circuit is configured to determine a second current of the signal transmitting tube according to the second voltage so that the first voltage is equal to a preset voltage threshold, and to determine contamination information in the detection pipeline according to the second current.

12. The cleaning device according to claim 11, characterized in that The signal processing circuit comprises: A signal amplifying circuit is configured to amplify the first voltage to generate a comparison amplified voltage; The comparison amplifier circuit is configured to determine the second voltage according to the comparison amplified voltage and a preset voltage threshold.

13. The cleaning device according to claim 12, characterized in that The signal amplification circuit comprises: A first resistor is configured to set a voltage amplification factor; The first operational amplifier chip is configured to amplify the first voltage according to the voltage amplification factor to generate a comparison amplified voltage.

14. The cleaning device according to claim 12, characterized in that The comparison amplifier circuit comprises: a second resistor configured to set a preset voltage threshold; The second operational amplifier chip is configured to determine the second voltage according to the comparison of the amplified voltage and the preset voltage threshold.

15. The cleaning device according to claim 14, characterized in that The second operational amplifier chip is further configured as: When the compared and amplified voltage is greater than the preset voltage threshold, reducing the second voltage; When the compared and amplified voltage is less than the preset voltage threshold, the second voltage is increased.

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