CN111368869A - Dirty degree judgement system and surface cleaning machine - Google Patents
Dirty degree judgement system and surface cleaning machine Download PDFInfo
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- CN111368869A CN111368869A CN201910889491.2A CN201910889491A CN111368869A CN 111368869 A CN111368869 A CN 111368869A CN 201910889491 A CN201910889491 A CN 201910889491A CN 111368869 A CN111368869 A CN 111368869A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 138
- 230000003287 optical effect Effects 0.000 claims abstract description 154
- 238000011109 contamination Methods 0.000 claims description 36
- 241000699666 Mus <mouse, genus> Species 0.000 description 32
- 238000010586 diagram Methods 0.000 description 16
- 238000001514 detection method Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000699670 Mus sp. Species 0.000 description 1
- 241001417527 Pempheridae Species 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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Abstract
The invention discloses a dirty degree judging system, which is used in a surface cleaning machine 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 warning information generating circuit for generating a warning information of a degree of soiling based on a relationship between the optical characteristic degree and a characteristic threshold degree when the light from the surface cleaning machine can reach a cleaning surface and the optical information can be generated based on the light from the surface cleaning machine; wherein the soiling level warning is used to indicate a cleaning status of the cleaning surface, and the cleaning status includes at least one of the following parameters: the degree of soiling of the cleaning surface, the location of the soiling of the cleaning surface and the air quality of the room in which the surface cleaning machine is located.
Description
Technical Field
The present invention relates to a system for determining a degree of soiling and a surface cleaning machine using the system, and more particularly, to a system for determining a degree of soiling which can provide a user with a variety of conditions of a cleaning surface (i.e., a surface to be cleaned) and a surface cleaning machine using the system for determining a degree of soiling.
Background
With the development of technology, the optical mouse gradually replaces the conventional roller mouse, and users pay more and more attention to the moving quality (e.g., sensitivity or accuracy) of the optical mouse, especially in some special occasions, such as game competition, the moving quality of the optical mouse is required to be in a relatively high standard.
However, the conventional optical mouse does not automatically display the moving quality thereof, and a user often needs to perform an actual operation to sense 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 suitable interval through complicated software, which may cause a considerable time consumption for the detection of the optical mouse. When a user has to manage a large number of optical mice, such as a caf operator, it takes a lot of time and spirit to confirm the moving quality of the optical mouse.
Furthermore, surface cleaning machines have become increasingly popular in recent years. However, conventional surface cleaning machines only clean a surface but cannot display the degree of soiling of a cleaned surface or related information.
Disclosure of Invention
Therefore, an object of the present invention is to disclose a contamination level determining system, which can provide information on the contamination level and information related to the cleaning surface.
It is another object of the present invention to disclose a surface cleaning machine that provides information on the degree of soiling and information relating to the cleaning surface.
An embodiment of the present invention discloses a system for judging a degree of soiling, which is used in a surface cleaning machine, and includes: 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 warning information generating circuit for generating a warning information of a degree of soiling based on a relationship between the optical characteristic degree and a characteristic threshold degree when the light from the surface cleaning machine can reach a cleaning surface and the optical information can be generated based on the light from the surface cleaning machine; wherein the soiling level warning is used to indicate a cleaning status of the cleaning surface, and the cleaning status includes at least one of the following parameters: the degree of soiling of the cleaning surface, the location of the soiling of the cleaning surface and the air quality of the room in which the surface cleaning machine 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 contamination level determination system includes: 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 warning message generating circuit for generating a warning message of the degree of soiling based on the relationship between the optical characteristic degree and the characteristic threshold degree when the light from the surface cleaning machine can reach the cleaning surface and the optical message can be generated based on the light from the surface cleaning machine. Wherein the soiling level warning is used to indicate a cleaning status of the cleaning surface, and the cleaning status includes at least one of the following parameters: the degree of soiling of the cleaning surface, the location of the soiling of the cleaning surface and the air quality of the room in which the surface cleaning machine is located.
According to the embodiments described above in connection with a surface cleaning machine, a user can be informed of various conditions on the cleaning surface or in the air when the surface cleaning machine performs a cleaning action, unlike a conventional surface cleaning machine that can only perform a cleaning action.
Drawings
FIG. 1 is a block diagram of an optical motion quality determination system according to an embodiment of the present 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 illustrating an optical touch device using the optical motion detection device shown in fig. 1.
Fig. 4 is a schematic diagram illustrating an optical motion quality determination method according to an embodiment of the invention.
FIG. 5 is a schematic diagram illustrating an optical motion quality determination method according to another embodiment of the invention.
Fig. 6 is a diagram illustrating a moving-quality hint according to an embodiment of the present invention.
Fig. 7 is a block diagram of a contamination level determining system according to an embodiment of the present invention.
FIG. 8 is a schematic view of a surface cleaning machine according to an embodiment of the invention.
FIG. 9 is a schematic diagram showing image feature levels of different light sources.
FIGS. 10A and 10B and FIGS. 11A and 11B are schematic diagrams illustrating operation of a surface cleaning machine according to various embodiments of the present invention.
Wherein the 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 moving quality prompt information generation module
200. 400, 500, 603 optical mouse
201. 301 image sensor
203. 303 light source
205 surface of
300 optical touch device
305 sensing surface
601 host
605 screen
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 invention will be illustrated in the following with a number of embodiments. It should be noted that, the elements described in the following embodiments, such as the system, the module, the unit, etc., may be implemented in hardware (for example, a circuit), or may be implemented in software plus hardware (for example, a program written in a processor).
FIG. 1 is a block diagram of an optical motion quality determination system according to an embodiment of the present invention. As shown in fig. 1, the optical moving quality determination system 100 includes a position determination module 101, an optical information generation module 103, an information quality determination module 105, and a moving quality indication information generation module 107. The optical information generating module 103 is disposed on an optical movement detecting device for generating optical information OI, and the position determining module 101 determines a relative position relationship between an object and the optical movement detecting device according to the optical information OI. The information quality determining module 105 is used for determining the information quality IQ of the optical information OI. The mobile quality indicator generation module 107 generates at least one mobile quality indicator according to a relationship (e.g., greater or less than) between the information quality IQ and a quality threshold. The moving quality prompt message can be light, sound or image, so that the user can know the moving quality condition 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 motion detection 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 contents will be described in detail below. In such embodiments, the relative position between the object and the optical motion detection device is determined based on the sensed image, so the quality of the sensed image is proportional to the motion quality of the optical motion detection device. Image quality can be affected by a number of factors. For example, the optical movement detects the degree of contamination of the surface on which the device is placed, or the degree of contamination of the lens used by the image sensor for capturing and sensing the image.
Various methods can be used to calculate the image quality of the sensed image. In one embodiment, the number of times of gray scale rise or fall of two adjacent pixels in each row in the sensed image is calculated, and the number is multiplied by a weight value to obtain an image quality parameter IP. The higher this image quality parameter IP, the better the image quality. The reason why the image quality is determined is that if the image has better image quality and is clearer, the gray scale of two adjacent pixels is more obviously changed. On the contrary, if the image has poor image quality and is blurred, the gray scale variation of two adjacent pixels is less obvious.
In another embodiment, the sensed image is first filtered by a filter to remove noise in the sensed image. The gray levels of the pixels in the sensed image are then compared to a predetermined value, which has a greater value (i.e., is brighter, such as 180). If the gray level of the pixel is less than the predetermined value, the counter is increased by 1. The smaller the count value, the better the image quality. The reason why the image quality can be determined in this way is that if the sensed image has a better image quality, it generally has a dark image, and the whole sensed image is not bright. On the contrary, if the whole image is almost bright, the representative image may be blurred and the image quality is not good.
FIG. 2 is a schematic diagram of an optical mouse 200 using the optical motion detection apparatus shown in FIG. 1. As shown in fig. 2, the optical information generating module 103 of fig. 1 is implemented by 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 configured to capture a sensed image including an image of the surface 205. The position determining module 101 determines a relative position relationship between the optical mouse 200 and the surface 205 (i.e., the aforementioned 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 moving quality indication information generating module 107 generates at least one moving quality indication information 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 determination system 100 shown in fig. 1 can be further used in an optical touch device. Fig. 3 is a schematic diagram illustrating 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 by 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 to capture 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 aforementioned object) according to the sensing 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 moving quality indication information generating module 107 generates at least one moving quality indication information 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 can also be used in optical navigation devices and optical touch devices with different structures from those shown in fig. 2 and 3. The moving mass hint information will be described in various embodiments below. It should be noted that although the following embodiments are described with reference to an optical mouse, the following embodiments can also be applied to an optical touch device.
Fig. 4 is a schematic diagram illustrating an optical motion quality determination method according to an embodiment of the invention. In one embodiment, the moving quality indication information is light emitted by at least one light emitting element. As shown in fig. 4, the optical mouse 400 includes a light emitting device LD which 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 (which means the moving quality is not good), the light-emitting device LD emits light to remind the user that the optical mouse 400 or the sliding surface thereof should be inspected. In another embodiment, the light-emitting device 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 means that the moving quality is within the acceptable range). When the information quality is less than the threshold value, the light-emitting device LD stops emitting light, so that the user can be reminded that the optical mouse 400 or the sliding surface thereof should be checked.
In one embodiment, the information quality is divided into a plurality of states, and the mobile quality indication information may also include a plurality of information correspondingly. For example, taking fig. 4 as an example, the information quality can be divided into three levels, i.e., high, medium, and low. 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 determining module determines that the plurality of sensed images have a problem of being too dark, the light emitting device LD emits orange light, and if the information quality determining module determines that the plurality of sensed images have a problem of having too low contrast, the light emitting device LD emits violet light. Therefore, the user can judge the information quality of the optical mouse more easily. Such embodiments may be briefly described as: the moving quality prompt message includes a first mode prompt message and a second mode prompt message. When the information quality is in a first state, the mobile quality prompt message generation module generates a first mode prompt message. And when the information quality is in a second state, the mobile quality prompt information generation module generates second mode prompt information.
The optical elements are 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 manner similar to that shown in fig. 4, that is, in one embodiment, if the information quality is less than the quality threshold (which means the moving quality is not good), at least one of the light-emitting elements LD _1, LD _2, and LD _3 emits light. In another embodiment, when the information quality is not less than the quality threshold, at least one of the light emitting elements LD _1, LD _2, and LD _3 emits light. When the information quality is less than the quality threshold, the light-emitting elements LD _1, LD _2, and LD _3 stop emitting light.
Similarly, the plurality of optical elements shown in fig. 5 may correspond to the embodiment described above in which "the information quality is divided into a plurality of states, and the moving-quality indication information may correspond to the embodiment including a plurality of kinds of information". For example, the information quality can be classified into three levels, i.e., high, medium, and low, and when the information quality is high, only the light-emitting element LD _1 emits light, when the information quality is medium, both the light-emitting elements LD _1 and LD _2 emit light, and when the information quality is low, all 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 plurality of sensed images have a problem of being too dark, the light emitting device LD _1 emits light, and if the information quality determining module determines that the plurality of sensed images have a problem of having too low contrast, the light emitting devices LD _1 and LD _2 emit light. Therefore, the user can judge the information quality of the optical mouse more easily.
In the above embodiments, the light emitting elements are provided on the optical mouse, but the light emitting elements may be provided in a device other than the optical mouse. Taking fig. 6 as an example, the light emitting element LD _1 is provided on the host 601. The optical mouse 601 is linked to the host 601 in a wired or wireless manner. The host 601 can generate different actions according to the control signal outputted by the optical mouse 603, for example, a cursor (not shown) on the screen can 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 determining module, and the light emitting device LD _1 on the host 601 emits light according to the relationship between the information quality generated by the information quality determining module and the quality threshold.
In one embodiment, the host 601 and the optical mouse 603 have light emitting devices that emit light or not at the same time according to the relationship between the quality of information and the quality threshold generated by the quality of information determination module. The user is thus more easily reminded that the optical mouse 603 may have problems with poor movement quality.
In the foregoing embodiments, light is used as the moving-quality indication information, but the moving-quality indication information may be other types of information. For example, in one embodiment the movement quality cue information is a sound. In another embodiment, the moving quality indication message is a displayable message, such as the moving quality indication message PM shown in fig. 6, which is displayed on the screen 605 and may be a text message or an image message.
It is to be noted that, those skilled in the art can combine or modify the foregoing embodiments, and such variations are also included in the scope of the present invention. The foregoing embodiments may be briefly described as an optical motion quality determination method, which is applied to an optical motion detection device, such as an optical navigation device or an optical touch device. The optical movement detection device is used for generating optical information (such as a sensing image) and judging the relative position relationship between an object and the optical movement detection device according to the optical information. The optical movement quality judging method includes: (a) judging 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 motion quality determination method can be executed by a computer-readable recording medium, but is not limited thereto. For example, a program is written on an optical disc or a storage device, and when the program is executed, the method can be performed.
The concepts described in the foregoing embodiments may be used on other types of electronic devices. In one embodiment, the concepts disclosed in the previous embodiments are used on a surface cleaning machine (or may be referred to as a surface cleaning apparatus, an automatic sweeper, or a sweeping robot) that automatically cleans a cleaning surface in accordance with user instructions. By cleaning surface is meant herein a surface that the user instructs the surface cleaning machine to clean.
Fig. 7 is a block diagram of a contamination level determining system according to an embodiment of the present invention. As shown in fig. 7, the contamination level judging system 700 includes an optical information generating circuit 701, a characteristic level judging circuit 703, a warning information generating device 705, and a control circuit 707. The optical information generation circuit 701 senses the 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 characteristic degree determination circuit 703 is used for determining the optical characteristic 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 characteristic degree determining circuit 703 determines the image characteristic to generate the optical characteristic degree 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 specific shape. In one embodiment, a high degree of optical characteristics means that image characteristics are apparent. Conversely, a low degree of optical characteristics means that the image characteristics are not apparent.
The alert information generating device 705 is used for generating at least one contamination level alert message RM according to the relationship between the optical characteristic level FL and the characteristic threshold level. The contamination level warning message RM may be light, sound or image, or any combination thereof. The soiling level reminder message RM can be displayed directly on the surface cleaning machine or transmitted to an electronic device (e.g. a mobile telephone or tablet computer) which can communicate with the surface cleaning machine.
The contamination level reminding message RM is used for indicating the cleaning status of the cleaning surface, and the cleaning status includes at least one of the following parameters: the degree of soiling of the cleaning surface CS, the location of soiling of the cleaning surface CS, the air quality of the room in which the cleaning 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 air quality judged from the optical information OI. The dirty position and the air quality will be described in more detail later.
The control circuit 707 is used to control the components of the contamination level determination system 700. Further, the control circuit 707 may analyze the characteristic degree FL to determine some circumstances related to the characteristic degree FL. The characteristic degree determination circuit 703 may be integrated into the control circuit 707. Moreover, the user can adjust the feature criticality to meet different requirements. The feature criticality may be adjusted, for example, by a remote control, or by a smart electronic device with corresponding software installed, or by a control panel provided on the surface cleaning machine containing the soiling level determination system 700.
FIG. 8 is a schematic view of a surface cleaning machine according to an embodiment of the invention. It should be noted that in the example of fig. 8, the contamination level determination system 700 is disposed in the surface cleaning machine 800, but for convenience of illustration, only a portion of the elements of the contamination level determination system 700 and the surface cleaning machine 800 are shown in fig. 8.
As shown in FIG. 8, surface cleaning machine 800 is placed on a cleaning surface CS, which in this example is a floor. 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 characteristic degree judgment circuit 703 judges the optical characteristic degree FL of the optical information OI. Further, the warning information generating means 705 generates the contamination degree warning information RM based on the relationship between the optical characteristic degree FL and the characteristic critical degree. In the embodiment of fig. 8, the reminding information generating means 705 comprises at least one LED (light emitting diode) LE _1, LE _2.
In one embodiment, the optical information OI is generated based on light from a first light source in the surface cleaning machine. The degree FL of optical characteristics 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 on the basis of light from a second light source in the surface cleaning machine. The optical characteristic degree FL of the optical information OI generated based on the light from the second light source, which may be an LD (laser diode), is inversely proportional to the degree of contamination of the cleaning surface CS.
FIG. 9 is a schematic diagram showing image feature levels 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 obvious image features caused by dust, such as image features FH _1a and FH _2 a. However, if the degree of contamination is low, the image IM _ E2 generated from the light from the LEDs has an insignificant image feature of dust, such as image features FL _1a, FL _2 a. Therefore, the image IM _ E1 has a high image feature level, and the image IM _ E2 has a low image feature level. On the contrary, if the degree of contamination is high, the image IM _ D1 generated based on the light from the LD has an insignificant image feature of dust, such as image features FH _1b, FH _2 b. However, if the degree of contamination is low, the image IM _ D2 generated based on the light from the LD has image features of dust, such as image features FL _1b, FL _2b, which are noticeable. Therefore, the image IM _ D1 has a low image feature level, and the image IM _ D2 has a high image feature level. It should also be understood that the first and second light sources described above are not limited to LEDs and LDs.
FIGS. 10A and 10B and FIGS. 11A and 11B are schematic diagrams illustrating operation of a surface cleaning machine according to various embodiments of the present invention. Fig. 10A and 10B show examples of the operation related to the parameter "dirty position of cleaning surface", and fig. 11A and 11B show examples of the operation related to the parameter "air quality of room". The "room" referred to herein may be a physical room, such as a bedroom or living room, but may also be a space within a range of locations where the surface cleaning machine is located.
As shown in fig. 10A, surface cleaning machine 800 first moves to the right on cleaning surface CS and cleans the area through which it passes. However, the surface cleaning machine 800 cannot remove the fixed soiled area FD because it may have sticky substances or other substances that are difficult to clean. When the surface cleaning machine 800 first passes the fixed soiled area FD, the control circuitry 707 of the surface cleaning machine 800 may determine the presence of the fixed soiled area FD based on the optical information OI (e.g. continuous images). In such a case, the position of the fixed dirty region FD will be recorded by the control circuit 707.
Further, in FIG. 10B, surface cleaning machine 800 is turned back and moved to the left. When the surface cleaning machine 800 passes the fixed soiled area FD again, the control circuit 707 of the surface cleaning machine 800 will determine that the fixed soiled area FD is still present on the basis of the optical information OI. In such a case, the control circuit 707 controls the warning information generating circuit 705 to generate the degree of contamination warning information RM having the parameter of "dirty position of cleaning surface" to notify the user that there is a dirty area that cannot be cleaned by the surface cleaning machine 800. In one embodiment, the surface cleaning machine 800 may stop near the fixed dirty section FD and generate the dirty level reminder message RM, so that the user can find the fixed dirty section FD more easily. In another embodiment, surface cleaning machine 800 may generate a map of the area being cleaned by surface cleaning machine 800 and send the map indicating the fixed soiled area FD to the user's mobile device.
In fig. 11A, the surface cleaning machine 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 setting of the surface cleaning machine 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, surface cleaning machine 800 may again perform the cleaning action. In such a case, if the control circuit 707 judges that the degree of contamination of the specific region of the cleaning surface CS is increased by more 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 warning message generating circuit 705 to generate the degree of contamination warning message RM, which includes a parameter "air quality of the room where the cleaning surface is located" to inform the user that the air quality in the room is lower than the air quality critical level.
Conventionally, if a user does not have an air cleaner or an air quality detector, the user cannot know the air quality in a room. However, if the air quality is poor, the degree of contamination of most of the cleaning surface CS may increase in a short time, and thus the air quality may be detected by the actions shown in fig. 11A and 11B.
According to the embodiments described above in connection with a surface cleaning machine, a user can be informed of various conditions on the cleaning surface or in the air when the surface cleaning machine performs a cleaning action, unlike a conventional surface cleaning machine that can only perform a cleaning action.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A system for determining a degree of soiling, for use in a surface cleaning machine, 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 warning information generating circuit for generating a warning information of a degree of soiling based on a relationship between the optical characteristic degree and a characteristic threshold degree when the light from the surface cleaning machine can reach a cleaning surface and the optical information can be generated based on the light from the surface cleaning machine;
wherein the soiling level warning is used to indicate a cleaning status of the cleaning surface, and the cleaning status includes at least one of the following parameters: the degree of soiling of the cleaning surface, the location of the soiling of the cleaning surface and the air quality of the room in which the surface cleaning machine is located.
2. The contamination level judging system according to claim 1, wherein:
wherein the optical information is generated based on light from a first light source in the surface cleaning machine, the optical characteristic degree of the optical information being proportional to the degree of soiling of the cleaning surface;
wherein 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 which represents that the dirty degree of the cleaning surface is higher than the dirty critical degree.
3. The contamination level judging system according to claim 2, wherein the first light source is an LED.
4. The contamination level judging system according to claim 1, wherein:
wherein the optical information is generated from light from a second light source in the surface cleaning machine, the optical characteristic degree of the optical information being inversely proportional to the degree of soiling of the cleaning surface;
wherein 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 which represents that the dirty degree of the cleaning surface is higher than the dirty critical degree.
5. The contamination level determination system of claim 4, wherein the second light source is a laser diode.
6. The system of claim 1, wherein if the control circuit of the surface cleaning machine determines that the fixed dirty region still exists according to the optical information after the surface cleaning machine cleans the fixed dirty region on the cleaning surface, the reminding information generating circuit generates the dirty level reminding information indicating that the fixed dirty region still exists on the cleaning surface.
7. The system of claim 1, wherein if the control circuit of the surface cleaning machine determines that the contamination level of the specific area increases after the specific area of the cleaning surface is cleaned by the surface cleaning machine for a predetermined time based on the optical information, the reminder generation circuit generates the contamination level reminder indicating that the air quality of the room is below an air quality threshold level.
8. The contamination level determination system of claim 1, wherein the characteristic threshold level is adjustable by a user.
9. The contamination level determination system of claim 1, wherein the optical information comprises an image and the optical characteristic level is an image characteristic level of the image.
10. A surface cleaning machine, comprising:
a light source; and
the contamination level judging system according to any one of claims 1 to 9.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111368869A true CN111368869A (en) | 2020-07-03 |
| CN111368869B 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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| CN112903709A (en) * | 2021-01-22 | 2021-06-04 | 大连理工大学 | Construction forming-oriented base material surface cleanliness evaluation method |
| CN114376452A (en) * | 2020-07-07 | 2022-04-22 | 追觅创新科技(苏州)有限公司 | Method and device for determining degree of soiling of cleaning mechanism, and storage medium |
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| CN112903709A (en) * | 2021-01-22 | 2021-06-04 | 大连理工大学 | Construction forming-oriented base material surface cleanliness evaluation method |
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| CN111368869B (en) | 2024-04-23 |
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