CN111368869B - Dirt degree judging system and surface cleaner - Google Patents
Dirt degree judging system and surface cleaner Download PDFInfo
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- CN111368869B CN111368869B CN201910889491.2A CN201910889491A CN111368869B CN 111368869 B CN111368869 B CN 111368869B CN 201910889491 A CN201910889491 A CN 201910889491A CN 111368869 B CN111368869 B CN 111368869B
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- 230000003287 optical effect Effects 0.000 claims abstract description 155
- 238000004140 cleaning Methods 0.000 claims abstract description 90
- 238000011109 contamination Methods 0.000 claims description 24
- 239000002689 soil Substances 0.000 claims description 7
- 241001417527 Pempheridae Species 0.000 claims description 4
- 241000699666 Mus <mouse, genus> Species 0.000 description 27
- 238000010586 diagram Methods 0.000 description 16
- 238000001514 detection method Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 241000699670 Mus sp. Species 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/24—Classification techniques
- G06F18/241—Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches
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Abstract
The invention discloses a dirt degree judging system, which is used in a surface cleaner and is characterized by comprising the following components: an optical information generating circuit for generating optical information; a characteristic degree judging circuit for judging the optical characteristic degree of the optical information; a reminding information generating circuit for generating a dirty degree reminding information according to the relation between the optical characteristic degree and the characteristic critical degree when the light from the surface cleaner can reach the cleaning surface and the optical information can be generated according to the light from the surface cleaner; the dirt degree reminding information is used for indicating the cleaning condition of the cleaning surface, and the cleaning condition comprises at least one of the following parameters: the degree of soiling of the cleaning surface, the soiling location of the cleaning surface, and the air quality of the room in which the surface cleaner is located.
Description
Technical Field
The present invention relates to a contamination level determining system and a surface cleaner using the same, and more particularly, to a contamination level determining system and a surface cleaner using the same, which can provide a user with various cleaning surface (i.e., a surface to be cleaned) conditions.
Background
With the advancement of technology, optical mice gradually replace traditional roller mice, and users pay more and more attention to the moving quality (for example, sensitivity or precision) of the optical mice, especially in some special occasions, such as game competition, the moving quality of the optical mice is required by quite high standards.
However, the existing optical mouse cannot automatically display the moving quality, so that the user often needs to actually operate to feel whether the moving quality of the optical mouse meets the requirement, and needs to know whether the moving quality of the optical mouse falls in a proper interval through complex software, so that the detection of the optical mouse needs to take a considerable amount of time. When a user has to manage a large number of optical mice, such as a network operator, it takes a lot of time and spirit to confirm the moving quality of the optical mice.
Further, surface cleaners have become increasingly popular in recent years. However, conventional surface cleaners can only clean a surface but cannot display the degree of soiling of a cleaned surface or related information.
Disclosure of Invention
It is therefore an object of the present invention to disclose a soil level determining system that provides soil level information and information related to cleaning a surface.
It is another object of the present invention to disclose a surface cleaning machine that provides soil level information and information related to cleaning a surface.
An embodiment of the invention discloses a dirt degree judging system, which is used in a surface cleaner and is characterized by comprising: an optical information generating circuit for generating optical information; a characteristic degree judging circuit for judging the optical characteristic degree of the optical information; a reminding information generating circuit for generating a dirty degree reminding information according to the relation between the optical characteristic degree and the characteristic critical degree when the light from the surface cleaner can reach the cleaning surface and the optical information can be generated according to the light from the surface cleaner; the dirt degree reminding information is used for indicating the cleaning condition of the cleaning surface, and the cleaning condition comprises at least one of the following parameters: the degree of soiling of the cleaning surface, the soiling location of the cleaning surface, and the air quality of the room in which the surface cleaner is located.
An embodiment of the invention discloses a surface cleaning machine, which is characterized by comprising a light source and a dirt degree judging system. The dirt degree judging system comprises: an optical information generating circuit that generates optical information based on light from the light source; a characteristic degree judging circuit for judging the optical characteristic degree of the optical information; and a reminding information generating circuit for generating a dirty degree reminding information according to the relation between the optical characteristic degree and the characteristic critical degree when the light from the surface cleaner can reach the cleaning surface and the optical information can be generated according to the light from the surface cleaner. The dirt degree reminding information is used for indicating the cleaning condition of the cleaning surface, and the cleaning condition comprises at least one of the following parameters: the degree of soiling of the cleaning surface, the soiling location of the cleaning surface, and the air quality of the room in which the surface cleaner is located.
According to the foregoing embodiments related to the surface cleaning machine, when the surface cleaning machine performs the cleaning action, the user can learn about various conditions in the cleaning surface or air, unlike the conventional surface cleaning machine which can perform only the cleaning action.
Drawings
FIG. 1 is a block diagram of an optical movement quality determining system according to an embodiment of the invention.
FIG. 2 is a schematic diagram of an optical mouse using the optical motion detection device shown in FIG. 1.
Fig. 3 is a schematic diagram of an optical touch device using the optical motion detection device shown in fig. 1.
Fig. 4 is a schematic diagram illustrating an optical movement quality determining method according to an embodiment of the invention.
Fig. 5 is a schematic diagram illustrating an optical moving quality determining method according to another embodiment of the invention.
Fig. 6 is a schematic diagram illustrating a mobile quality indicator according to an embodiment of the invention.
FIG. 7 is a block diagram of a system for determining a contamination level according to an embodiment of the invention.
FIG. 8 is a schematic view of a surface cleaner according to an embodiment of the invention.
FIG. 9 is a schematic diagram showing the image characteristic degree of different light sources.
Fig. 10A, 10B and 11A, 11B are schematic diagrams illustrating operations of the surface cleaning machine according to various embodiments of the present invention.
Wherein reference numerals are as follows:
100. optical movement quality judging system
101. Position judging module
103. Optical information generating module
105. Information quality judging module
107. Mobile quality prompt information generation module
200. 400, 500, 603 Optical mouse
201. 301 Image sensor
203. 303 Light source
205. Surface of the body
300. Optical touch device
305. Sensing surface
601. Host machine
605. Screen panel
F finger
LD, LD_1, LD_2, LD_3 optical element
700. Dirty degree judging system
701. Optical information generating circuit
703. Characteristic degree judging circuit
705. Reminding information generating device
707. Control circuit
709. Light source
800. Surface cleaning machine
Detailed Description
The concept of the present invention will be described in the following in a number of embodiments. It should be noted that the elements described in the following embodiments, such as a system, a module, a unit, and the like, may be implemented in hardware (e.g., a circuit), or may be implemented in software and hardware (e.g., a program written in a processor).
FIG. 1 is a block diagram of an optical movement quality determining system according to an embodiment of the invention. As shown in fig. 1, the optical moving quality determining system 100 includes a position determining module 101, an optical information generating module 103, an information quality determining module 105, and a moving quality prompting information generating module 107. The optical information generating module 103 is disposed on an optical motion detecting device for generating optical information OI, and the position determining module 101 determines a relative position relationship between an object and the optical motion detecting device according to the optical information OI. The information quality judging module 105 is configured to judge an information quality IQ of the optical information OI. The mobile quality indicator generation module 107 generates at least one mobile quality indicator according to the relationship (e.g. greater or less) between the quality IQ and a quality threshold. The moving quality prompt information can be light, sound or image, so that the user can know the moving quality of the optical moving detection device.
In one embodiment, the optical information generating module 103 is an image sensor, the optical information OI is a sensed image captured by the optical information generating module 103, and in such an example, the information quality IQ is an image quality of the sensed image. The optical movement detecting device may be an optical navigation device (e.g. an optical mouse) or an optical touch device, and the object may be a finger or a surface (e.g. a desktop on which the optical mouse is placed). The relevant content will be described in detail below. Since the relative positions of the object and the optical motion detection device are based on the sensed image in such embodiments, the quality of the sensed image is proportional to the moving quality of the optical motion detection device. Image quality may be affected by a number of factors. For example, the optical movement detection device can be used to detect the contamination level of the surface on which the optical movement detection device is placed, or the contamination level of a lens used when the image sensor captures the sensed image.
Various methods can be used to calculate the image quality of the sensed image. In one embodiment, the number of gray level increases or decreases of two adjacent pixels in each column of the sensed image is calculated, and a weight value is multiplied to obtain the image quality parameter IP. The higher this image quality parameter IP, the better the image quality. The reason for determining the image quality is that if the image has better image quality and is clearer, the gray level of two adjacent pixels is more obviously changed. Conversely, if the image has poor image quality and is blurred, the gray scale of two adjacent pixels is less significantly changed.
In another embodiment, the sensed image is first filtered by a filter to remove noise from the sensed image. The pixel gray level in the sensed image is then compared to a predetermined value, which has a larger value (i.e., brighter, e.g., 180). If the pixel gray level is less than the predetermined value, the counter is incremented by 1. The smaller this count value, the better the image quality. The reason for determining the image quality is that if the sensed image has a good image quality, it will generally have a dark area image, and the sensed image will not be bright as a whole. Conversely, if the entire image is almost bright, the representative image may be blurred and the image quality is poor.
Fig. 2 is a schematic diagram of an optical mouse 200 using the optical motion detection device shown in fig. 1. As shown in fig. 2, the optical information generating module 103 of fig. 1 is implemented as an image sensor 201 in fig. 2. The light source 203 is used to illuminate a surface 205 (e.g., a desktop on which the optical mouse 200 is placed). The image sensor 201 is used for capturing a sensed image including an image of the surface 205. The position determining module 101 determines the relative position relationship between the optical mouse 200 and the surface 205 (i.e. the object) according to the sensed image captured by the image sensor 201. The information quality determining module 105 determines the image quality of the sensed image captured by the image sensor 201. The motion quality indicator generation module 107 generates at least one motion quality indicator according to the relationship between the image quality and the image threshold.
In addition to the optical mouse shown in fig. 2, the optical movement quality determining system 100 shown in fig. 1 can be further used on an optical touch device. Fig. 3 is a schematic diagram of an optical touch device 300 using the optical motion detection device shown in fig. 1. As shown in fig. 3, the optical information generating module 103 in fig. 1 is implemented as an image sensor 301 in fig. 3. The light source 303 is used to illuminate a finger F on the sensing surface 305. The image sensor 201 is used for capturing a sensing image including an image of the finger F. The position determining module 101 determines the relative position relationship between the sensing surface 305 and the finger F (i.e. the object) according to the sensed image captured by the image sensor 201. The information quality determining module 105 determines the image quality of the sensed image captured by the image sensor 301. The motion quality indicator generation module 107 generates at least one motion quality indicator according to the relationship between the image quality and the image threshold.
It should be noted that the optical information generating module 103 of fig. 1 may also be used in an optical navigation device and an optical touch device with different structures from those shown in fig. 2 and 3. The foregoing movement quality indicator will be described in various embodiments. It should be noted that, although the following embodiments are described with an optical mouse, the embodiments described below can also be used on an optical touch device.
Fig. 4 is a schematic diagram illustrating an optical movement quality determining method according to an embodiment of the invention. In one embodiment, the movement quality indicator is light emitted from at least one light emitting element. As shown in fig. 4, the optical mouse 400 includes a light emitting element LD that emits light according to the relationship between the information quality and the quality threshold. In one embodiment, if the information quality is less than the quality threshold (representing poor moving quality), the light emitting element LD emits light to alert the user that the optical mouse 400 or the sliding surface should be inspected. In another embodiment, the light emitting element LD emits light when the information quality is not less than the quality threshold (i.e., greater than or equal to the quality threshold, which represents that the moving quality is within an acceptable range). When the information quality is less than the quality threshold, the light emitting element LD stops emitting light, which also alerts the user that the optical mouse 400 or the sliding surface should be inspected.
In one embodiment, the information quality is divided into a plurality of states, and the moving quality prompt information can correspondingly contain a plurality of information. For example, taking fig. 4 as an example, the information quality can be divided into high, medium, and low levels. When the information quality is high, the light emitting element LD emits green light, when the information quality is medium, the light emitting element LD emits yellow light, and when the information quality is low, the light emitting element LD emits red light. In another embodiment, if the information quality judging module judges that the plurality of sensed images have a problem of excessively dark, the light emitting element LD emits orange light, and if the information quality judging module judges that the plurality of sensed images have a problem of excessively low contrast, the light emitting element LD emits purple light. Thus, the user can judge the information quality of the optical mouse more easily. Such embodiments may be briefly illustrated as: the mobile quality prompt includes a first mode prompt and a second mode prompt. When the information quality is in a first state, the mobile quality prompt information generating module generates first mode prompt information. And when the information quality is in the second state, the mobile quality prompt information generating module generates second mode prompt information.
The aforementioned optical element is not limited to only one optical element. As shown in fig. 5, the optical mouse 500 includes a plurality of optical elements ld_1, ld_2, and ld_3. The optical elements ld_1, ld_2 and ld_3 operate in a similar manner to that shown in fig. 4, that is, in one embodiment, if the information quality is less than the quality threshold (representing that the moving quality is poor), at least one of the light emitting elements ld_1, ld_2 and ld_3 emits light. In another embodiment, at least one of the light emitting elements ld_1, ld_2 and ld_3 emits light when the information quality is not less than the quality threshold. When the information quality is smaller than the quality threshold, the light emitting elements ld_1, ld_2 and ld_3 stop emitting light.
Similarly, the optical elements shown in fig. 5 may also correspond to the aforementioned embodiments of "information quality is divided into a plurality of states, and the moving quality indicator may also correspond to the embodiments of" information containing a plurality of types ". For example, the information quality can be classified into high, medium, and low three levels, and when the information quality is high, only the light emitting element ld_1 emits light, and when the information quality is medium, the light emitting elements ld_1 and ld_2 emit light, and when the information quality is low, the light emitting elements ld_1, ld_2, and ld_3 emit light. Similarly, in another embodiment, if the information quality determining module determines that the sensed images are too dark, the light emitting element ld_1 emits light, and if the information quality determining module determines that the sensed images are too low in contrast, the light emitting elements ld_1 and ld_2 emit light. Thus, the user can judge the information quality of the optical mouse more easily.
In the foregoing embodiments, the light emitting elements are all disposed on the optical mouse, but the light emitting elements may be disposed on devices other than the optical mouse. Taking fig. 6 as an example, the light emitting element ld_1 is disposed on the host 601. The optical mouse 601 is linked to the host 601 in a wired or wireless manner. The host 601 may generate different actions according to the control signals output by the optical mouse 603, for example, a cursor (not shown) on the screen may move corresponding to the movement of the optical mouse 601. In this embodiment, the optical mouse 603 still includes the aforementioned optical information generating module and information quality judging module, and the light emitting element ld_1 on the host 601 emits light according to the relationship between the information quality and the quality threshold value generated by the information quality judging module.
In one embodiment, the host 601 and the optical mouse 603 have light emitting elements that emit light or not according to the relationship between the information quality and the quality threshold generated by the information quality determining module. So that the user is more likely to be reminded that the optical mouse 603 may have a problem of poor moving quality.
In the foregoing embodiments, the light is used as the moving quality prompt information, but the moving quality prompt information may be other types of information. For example, in one embodiment the moving quality indicator is a sound. In another embodiment, the motion quality indicator is a displayable information, such as the motion quality indicator PM shown in fig. 6, which is displayed on the screen 605 and may be a text message or a video message.
It is noted that those skilled in the art can combine or modify the above embodiments, and such modifications are also included in the scope of the present invention. The foregoing embodiments may be abbreviated as an optical movement quality determining method, which is used on an optical movement detecting device, such as an optical navigation device or an optical touch device. The optical motion detection device is used for generating optical information (for example, sensing images) and judging the relative position relationship between an object and the optical motion detection device according to the optical information. The optical movement quality judging method comprises the following steps: (a) determining the information quality of the optical information; and (b) generating at least one moving quality prompt message according to the relation between the information quality and a quality critical value. The optical moving quality judging method may be performed by a computer-readable recording medium, but is not limited thereto. For example, a program may be written on an optical disk or storage device, and the method described above may be performed when the program is executed.
The concepts described in the foregoing embodiments may be used on other types of electronic devices. In one embodiment, the concepts disclosed in the foregoing embodiments are used on surface cleaners (or may be referred to as surface cleaners, automatic sweepers, sweeping robots) that automatically clean a cleaning surface according to a user's instructions. The cleaning surface herein refers to a surface that a user instructs the surface cleaner to clean.
FIG. 7 is a block diagram of a system for determining a contamination level according to an embodiment of the invention. As shown in fig. 7, the contamination level determining system 700 includes an optical information generating circuit 701, a characteristic level determining circuit 703, a warning information generating device 705, and a control circuit 707. The optical information generating circuit 701 senses optical information OI generated from the light L from the light source 709. The cleaning surface CS may be any type of surface, such as a floor or furniture surface. The feature degree determination circuit 703 is used to determine an optical feature degree FL of the optical information OI. In one embodiment, the optical information generating circuit 701 is an image sensor, the optical information OI is an image, and the feature level determining circuit 703 determines the image feature to generate the optical feature level FL, but is not limited to these examples. The image feature may be at least one pixel having a higher or lower pixel value, or an image portion having a particular shape. In one embodiment, a high degree of optical characteristics means that the image features are apparent. Conversely, a low degree of optical characteristics means that the image features are not noticeable.
The reminding information generating device 705 is configured to generate at least one contamination level reminding information RM according to the relationship between the optical characteristic level FL and the characteristic critical level. The fouling degree reminding information RM may be light, sound or image, or any combination thereof. The soil level warning message RM may be displayed directly on the surface cleaning machine or transmitted to an electronic device (e.g. a mobile phone or tablet computer) which may communicate with the surface cleaning machine.
The dirt level reminding information RM is used for indicating the cleaning state of the cleaning surface, and the cleaning state comprises at least one of the following parameters: the degree of soiling of the surface CS, the position of soiling of the surface CS, and the air quality of the room in which the surface CS is located. The degree of soiling of the cleaning surface CS means how dirty the cleaning surface is. For example, the more hair or dust on the cleaning surface CS, the higher the degree of soiling. In addition, the dirty position refers to a position on the cleaning surface CS where a fixed dirty region exists, and the air quality refers to an air quality determined based on the optical information OI. The dirt position and the air quality will be described in more detail later.
The control circuit 707 is used to control the components in the contamination level determination system 700. Further, the control circuit 707 may analyze the characteristic degree FL to determine some cases related to the characteristic degree FL. The feature degree determination circuit 703 may be integrated into the control circuit 707. Moreover, the user can adjust the critical degree of the characteristics to meet different requirements. The characteristic criticality may be adjusted, for example, by a remote control, or an intelligent electronic device with corresponding software installed, or by a control panel provided on a surface cleaning machine incorporating the soil level judgment system 700.
FIG. 8 is a schematic view of a surface cleaner according to an embodiment of the invention. Note that in the example of fig. 8, the aforementioned contamination level judging system 700 is provided in the surface cleaner 800, but in fig. 8, only a part of the elements in the contamination level judging system 700 and the surface cleaner 800 are shown for convenience of description.
As shown in fig. 8, the surface cleaner 800 is placed on a cleaning surface CS, which in this example is a floor surface. The light source 709 emits light L toward the cleaning surface CS, and the optical information generating circuit 701 generates optical information OI according to the light L. The feature degree determination circuit 703 determines an optical feature degree FL of the optical information OI. The reminding information generating device 705 generates the contamination level reminding information RM based on the relation between the optical characteristic degree FL and the characteristic critical degree. In the embodiment of fig. 8, the alert information generating device 705 includes at least one LED (light emitting diode) le_1, le_2.
The control circuit 707 may be a control circuit (e.g., a processor) of the surface cleaning machine 800. In such an embodiment, the control circuit 707 is independent of the contamination level determination system 700 and is not included in the contamination level determination system 700.
In one embodiment, the optical information OI is generated based on light from a first light source in the surface cleaning machine. The degree of optical characteristic FL of the optical information OI generated from the light from the first light source, which may be an LED, is proportional to the degree of soiling of the cleaning surface CS. In contrast, in another embodiment, the optical information OI is generated based on light from a second light source in the surface cleaning machine. The degree of optical characteristic FL of the optical information OI generated according to the light from the second light source is inversely proportional to the degree of contamination of the cleaning surface CS, and the second light source may be an LD (laser diode).
FIG. 9 is a schematic diagram showing the image characteristic degree of different light sources. As shown in fig. 9, if the degree of contamination is high, the image im_e1 generated from the light from the LED has a distinct image feature caused by dust, for example, image features fh_1a, fh_2a. However, if the degree of contamination is low, the image im_e2 generated from the light from the LED has inconspicuous image features of dust, such as image features fl_1a, fl_2a. Thus, the image im_e1 has a high image characteristic degree, and the image im_e2 has a low image characteristic degree. Conversely, if the degree of contamination is high, the image im_d1 generated from the light from the LD has insignificant image characteristics of dust, such as image characteristics fh_1b, fh_2b. However, if the degree of contamination is low, the image im_d2 generated from the light from the LD has obvious image features of dust, such as image features fl_1b, fl_2b. Thus, the image IM_D1 has a low image characteristic degree, and the image IM_D2 has a high image characteristic degree. It is also understood that the first and second light sources are not limited to LEDs and LDs.
Fig. 10A, 10B and 11A, 11B are schematic diagrams illustrating operations of the surface cleaning machine according to various embodiments of the present invention. Fig. 10A and 10B show examples of actions related to the parameter "clean surface dirty position", and fig. 11A and 11B show examples of actions related to the parameter "room air quality". The "room" may be a physical room, such as a bedroom or living room, but may also be a range of spaces where the surface cleaning machine is located.
As shown in fig. 10A, the surface cleaner 800 first moves rightward on the cleaning surface CS and cleans the area through which it passes. However, surface cleaner 800 cannot remove the fixed soiled area FD because it may have sticky materials or other materials that are difficult to clean. When surface cleaner 800 first passes fixed soiled area FD, control circuitry 707 of surface cleaner 800 may determine the presence of fixed soiled area FD based on optical information OI (e.g., a continuous image). In such a case, the position of the fixed dirt area FD will be recorded by the control circuit 707.
Further, in fig. 10B, the surface cleaner 800 turns back and moves to the left. When the surface cleaner 800 passes the fixed soiled area FD again, the control circuitry 707 of the surface cleaner 800 will determine from the optical information OI that the fixed soiled area FD is still present. In this case, the control circuit 707 controls the reminder information generating circuit 705 to generate the dirty level reminder information RM having the parameter of "dirty position of the cleaning surface" to notify the user that there is a dirty region that cannot be cleaned by the surface cleaner 800. In one embodiment, surface cleaner 800 may stop near fixed soiled area FD and generate a soiled level alert RM so that the user may more easily find fixed soiled area FD. In another embodiment, the surface cleaner 800 may generate a map of the area that the surface cleaner 800 is cleaning and send the map indicating the fixed dirty region FD to the user's mobile device.
In fig. 11A, the surface cleaner 800 performs a cleaning action on a specific area of the cleaning surface CS and records a time point when the cleaning action of the specific area is completed. The specific area here may be the entire cleaning surface CS or only a portion of the cleaning surface CS, depending on the settings of the surface cleaner 800. For example, if the cleaning surface CS is the floor of a bedroom, the particular area may refer to the entire floor or only a portion of the floor. After a predetermined time (e.g., one day or 8 hours), in fig. 11B, the surface cleaner 800 may perform the cleaning action again. In such a case, if the control circuit 707 determines that the degree of contamination increase of the specific area of the cleaning surface CS is greater than a predetermined degree (for example, higher than the degree of contamination in fig. 11A) based on the optical information OI. The control circuit 707 controls the alert information generating circuit 705 to generate a dirty level alert information RM that includes a parameter of "air quality of the room in which the cleaning surface is located" to inform the user that the air quality in the room is below the air quality threshold level.
Conventionally, if a user does not have an air cleaner or an air quality detector, the user cannot know the air quality in the room. However, if the air quality is poor, the degree of dirt of most of the cleaning surface CS may increase in a short time, and thus the air quality can be detected by the actions shown in fig. 11A and 11B.
According to the foregoing embodiments related to the surface cleaning machine, when the surface cleaning machine performs the cleaning action, the user can learn about various conditions in the cleaning surface or air, unlike the conventional surface cleaning machine which can perform only the cleaning action.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A soil level judgment system for use in an automatic cleaning machine movable on a surface to be cleaned in a room, comprising:
An optical information generating circuit for generating optical information according to light from the automatic cleaner reaching the cleaning surface;
a characteristic degree judging circuit for judging the optical characteristic degree of the optical information;
A reminding information generating circuit for generating a dirty degree reminding information according to the relation between the optical characteristic degree and the characteristic critical degree when the light from the automatic cleaning machine can reach the cleaning surface and the optical information can be generated according to the light from the automatic cleaning machine;
The control circuit is used for judging whether the fixed dirty area still exists or not according to the optical information after the fixed dirty area on the cleaning surface is cleaned by the automatic cleaning machine;
The reminding information generating circuit is used for generating a dirty degree reminding message with parameters of dirty positions of the clean surface after judging that the fixed dirty area still exists;
The dirt degree reminding information is used for indicating the cleaning condition of the cleaning surface, and the cleaning condition further comprises at least one of the following parameters: the degree of soiling of the cleaning surface and the air quality of the room in which the automatic sweeper is located;
Wherein the optical information is generated based on light from a first light source in the automatic sweeper, the optical characteristic of the optical information being proportional to the degree of soiling of the cleaning surface; if the optical characteristic degree is higher than or equal to the characteristic critical degree, the reminding information generating circuit generates the dirty degree reminding information representing that the dirty degree of the clean surface is higher than the dirty critical degree; or alternatively
Wherein the optical information is generated based on light from a second light source in the automatic sweeper, the optical characteristic level of the optical information being inversely proportional to the dirt level of the cleaning surface; if the optical characteristic degree is lower than or equal to the characteristic critical degree, the reminding information generating circuit generates the dirty degree reminding information representing that the dirty degree of the cleaning surface is higher than the dirty critical degree.
2. The system of claim 1, wherein the first light source is an LED.
3. The system of claim 1, wherein the second light source is a laser diode.
4. The system of claim 1, wherein if the control circuit of the automatic cleaner determines that the contamination level of a specific area of the cleaning surface increases based on the optical information after the automatic cleaner cleans the specific area for a predetermined time, the alert generation circuit generates the contamination level alert representing that the air quality of the room is lower than a critical air quality level, the specific area being the entire cleaning surface or only a portion of the cleaning surface.
5. The soil level determination system of claim 1, wherein the characteristic threshold level is adjustable by a user.
6. The system of claim 1, wherein the optical information comprises an image and the optical characteristic is an image characteristic of the image.
7. An automatic cleaning machine, comprising:
A light source; and
The contamination level judging system according to any one of claims 1 to 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/233,043 | 2018-12-26 | ||
| US16/233,043 US10732127B2 (en) | 2016-10-26 | 2018-12-26 | Dirtiness level determining system and surface cleaning machine |
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| Publication Number | Publication Date |
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| CN111368869A CN111368869A (en) | 2020-07-03 |
| CN111368869B true CN111368869B (en) | 2024-04-23 |
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| CN201910889491.2A Active CN111368869B (en) | 2018-12-26 | 2019-09-19 | Dirt degree judging system and surface cleaner |
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