CN219625344U - Material sensor and robot sweeps floor - Google Patents
Material sensor and robot sweeps floor Download PDFInfo
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- CN219625344U CN219625344U CN202223315451.3U CN202223315451U CN219625344U CN 219625344 U CN219625344 U CN 219625344U CN 202223315451 U CN202223315451 U CN 202223315451U CN 219625344 U CN219625344 U CN 219625344U
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- light
- optical filter
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- material sensor
- sensor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The embodiment of the utility model discloses a material sensor and a sweeping robot, wherein the material sensor comprises a shell, a processor, an optical filter and a luminous piece, when the ground material is required to be identified, the luminous piece emits light, the light is reflected back to the material sensor through the ground, the processor receives the reflected light and judges ground information according to the reflected light, in the process, the processor always receives the light of the environment light, when the environment light is too strong, the sensitivity and the accuracy of the processor are influenced, the optical filter is additionally arranged, the optical filter can only enable the light with specific wavelength to pass through, most of the environment light can be filtered, the influence of the environment light on the processor is reduced, meanwhile, the luminous wavelength of the luminous piece is limited, the light emitted by the luminous piece can not be influenced by the optical filter, and the light directly passes through the optical filter and is reflected through the ground to act on the processor, so that the judgment of the sensor is effectively avoided, and the phenomenon of misjudgment of the sensor is caused.
Description
Technical Field
The embodiment of the utility model relates to the technical field of photoelectric sensors, in particular to a material sensor and a sweeping robot.
Background
The material sensor is a photoelectric sensor capable of detecting whether the ground material is floor (floor tile) or carpet, and uploading the material type to the control system, and finally the control system automatically controls the cleaning action of the sweeping robot according to the ground material information fed back by the sensor.
At present, because the structure of the photoelectric material sensor is composed of a light-emitting chip, a photosensitive chip and a processing circuit, the principle is that different materials are identified by means of the intensity of light-emitting signals reflected by the ground, when the sunlight in the working environment of the sensor is too strong, the ambient light can interfere with the judgment of the sensor, so that the sensor is misjudged, and therefore, the sweeping robot can lose the function of automatically identifying the materials and cannot make correct cleaning actions.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.
To this end, a first aspect of the present utility model provides a material sensor.
A second aspect of the present utility model provides a sweeping robot.
In view of the foregoing, a first aspect of an embodiment of the present utility model provides a material sensor, including:
a housing;
a processor disposed within the housing;
the optical filter is connected to the shell;
the light-emitting piece is arranged in the shell;
the processor is used for receiving the light reflected by the optical filter, the light emitting wavelength of the light emitting piece is adapted to the filtering wavelength of the optical filter, and the light emitting direction faces to the optical filter.
In one possible embodiment, the processor includes:
an integrated circuit;
a photosensitive chip disposed on the integrated circuit;
the light emitting piece comprises a light emitting chip, and the light emitting chip is arranged on the integrated circuit.
In a possible embodiment, the housing has a receiving cavity formed therein, and the processor further includes a circuit board disposed in the receiving cavity, and the integrated circuit is disposed on the circuit board.
In one possible embodiment, an opening is formed at one side of the housing, and the filter is used to cover the opening.
In a possible embodiment, the filter is a bandpass filter with a filtering wavelength of 920nm to 960nm;
the luminous wavelength of the luminous element is 920nm to 960nm.
In one possible embodiment, the filter further comprises a light shielding strip, and the light shielding strip is arranged on the periphery side of the filter.
In a possible implementation manner, the light shielding strip and the shell are correspondingly provided with mounting screw holes, and the optical filter and the shell are connected with the light shielding strip through the mounting screw holes and the bolts.
In one possible embodiment, the photosensitive chip is disposed at a position through which a light-emitting light path of the light-emitting chip passes.
According to a second aspect of an embodiment of the present utility model, there is provided a sweeping robot including:
a robot body for sweeping floor;
any one of the above material sensors is arranged on the sweeping robot body.
In one possible implementation mode, the number of the material sensors is at least two, and at least one material sensor is arranged at the center position of the bottom of the sweeping robot.
Compared with the prior art, the utility model at least comprises the following beneficial effects:
the material sensor provided by the embodiment of the utility model comprises a shell, a processor, an optical filter and a luminescent piece, wherein the processor is arranged in the shell, the optical filter is connected with the shell, the luminescent piece is also arranged in the shell, wherein the processor is used for receiving light reflected by the optical filter, the luminescent wavelength of the luminescent piece is adapted to the filtering wavelength of the optical filter, the luminescent direction faces to the optical filter, when the ground material is required to be identified, the luminescent piece emits light, the light is reflected back to the material sensor through the ground, the processor receives the reflected light, and judges the ground information according to the reflected light, in the process, the processor always receives the light of the ambient light, when the ambient light is too strong, the sensitivity and the accuracy of the processor are influenced, therefore, the optical filter is additionally arranged, only the light of a specific wavelength can pass, most of the ambient light can be filtered, the influence of the ambient light on the processor is reduced, and meanwhile, the luminescent wavelength of the luminescent piece is limited, so that the light emitted by the luminescent piece can not be influenced by the optical filter, and directly pass through the optical filter and act on the processor.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a block diagram illustrating a texture sensor according to an embodiment of the present utility model;
FIG. 2 is a graph of the intensity profile of sunlight;
FIG. 3 is a graph of the emission spectrum of an infrared LED chip;
FIG. 4 is a spectral diagram of a filter;
110: a housing; 120: a processor; 130: a light filter; 140: a receiving chamber.
Detailed Description
In order to better understand the above technical solutions, the following detailed description of the technical solutions of the embodiments of the present utility model is made by using the accompanying drawings and the specific embodiments, and it should be understood that the specific features of the embodiments of the present utility model are detailed descriptions of the technical solutions of the embodiments of the present utility model, and not limit the technical solutions of the present utility model, and the technical features of the embodiments of the present utility model may be combined with each other without conflict.
As shown in fig. 1, according to a first aspect of an embodiment of the present application, there is provided a material sensor, including: a housing 110; a processor 120 disposed within the housing 110; a filter 130 connected to the housing 110; a light emitting member disposed in the housing 110; the processor 120 is configured to receive the light reflected back through the optical filter 130, the light emitting wavelength of the light emitting element is adapted to the filtering wavelength of the optical filter 130, and the light emitting direction is towards the optical filter 130.
The material sensor provided by the embodiment of the utility model comprises a shell 110, a processor 120, an optical filter 130 and a luminescent element, wherein the processor 120 is arranged in the shell 110, the optical filter 130 is connected to the shell 110, the luminescent element is also arranged in the shell 110, wherein the processor 120 is used for receiving light reflected back by the optical filter 130, the luminescent wavelength of the luminescent element is adapted to the filtering wavelength of the optical filter 130, and the luminescent direction faces to the optical filter 130, when the ground material is required to be identified, the luminescent element emits light, the light is reflected back to the material sensor through the ground, the processor 120 receives the reflected light and judges the ground information according to the light, in the process, the processor 120 always receives the light of the ambient light, when the ambient light is too strong, the sensitivity and the accuracy of the processor 120 are influenced, therefore, the optical filter 130 is additionally arranged, only the light of a specific wavelength can be transmitted, most of the ambient light can be filtered, the influence of the ambient light on the processor 120 is reduced, meanwhile, the luminescent wavelength of the luminescent element is limited, the light emitted by the optical filter 130 can not be influenced by the optical filter 130, the light directly passes through the optical filter 130 and acts on the processor 120, the ambient light is effectively, and the sensor is prevented from being interfered by the sensor, and the sensor from being judged by the ambient light.
As shown in fig. 1, the processor 120 includes: an integrated circuit; the photosensitive chip is arranged on the integrated circuit; the light-emitting piece comprises a light-emitting chip, and the light-emitting chip is arranged on the integrated circuit.
In the technical scheme, the integrated circuit integrates the photosensitive chip and the light-emitting chip, the light emitted by the light-emitting chip passes through the optical filter 130, the photosensitive chip receives the light reflected back through the ground, the ground material is judged through the reflected light, the integrated circuit plays a role in integrating all electronic elements in the material sensor, and the circuit wiring and maintenance and inspection are facilitated.
It can be understood that the light-sensitive chip can receive the light reflected by the ground and sent by the light-emitting element, and transmit the reflected light information to the processor 120, and the processor 120 can determine the ground material according to the information of the reflected light because the reflection effects of the ground light of different materials are different.
As shown in fig. 1, the housing 110 has a receiving chamber 140 formed therein, and the processor 120 further includes a circuit board disposed in the receiving chamber 140 and an integrated circuit disposed on the circuit board.
In this embodiment, the housing 110 is provided with a housing chamber 140, so that the processor 120 can be fixed inside the housing chamber 140, and the housing function of the processor 120 is achieved.
It can be appreciated that the processor 120 can be detachably fixed in the accommodating cavity 140 through a connection manner such as a bolt or a buckle, when the processor 120 fails, the processor 120 can be directly detached from the accommodating cavity 140 for maintenance and replacement, and the usability of the material sensor is improved.
As shown in fig. 1, an opening is formed at one side of the case 110, and a filter 130 is used to cover the opening.
It can be understood that the position of the opening formed on the housing 110 corresponds to the accommodating cavity 140, one side of the accommodating cavity 140 is the opening, and the light emitted by the light emitting element and the light acting on the processor 120 want to enter the material sensor through the opening, and the optical filter 130 is disposed at the opening, so that the light acting on the processor 120 can be filtered.
It will be appreciated that the housing 110, except where the receiving cavity 140 is left open for light to enter, the remainder is wholly shielded from ambient light, which is not filtered, from entering the housing 110 from other locations than the filter 130 and affecting the processor 120, further enhancing the accuracy and resistance of the material sensor to ambient light.
As shown in fig. 1 to 4, the filter 130 is a bandpass filter 130 having a filtering wavelength of 920nm to 960nm; the light emitting member emits light having a wavelength of 920nm to 960nm.
In this technical solution, the passing wavelength of the optical filter 130 and the light emitting wavelength of the light emitting element are limited to 920nm to 960nm, and according to the spectral analysis of sunlight, the light intensity distribution of the wavelengths of 920nm to 960nm is the weakest in the natural light environment, so that the passing wavelength of the optical filter 130 and the light emitting wavelength of the light emitting element are limited to 920nm to 960nm, and the influence of the ambient light on the identification process of the material sensor can be reduced to the greatest extent.
In one possible solution, the material sensor further includes a light shielding strip, where the light shielding strip is disposed on a peripheral side of the optical filter 130.
In this technical scheme, be equipped with the shading strip at light filter 130 week side, it can be understood that the shading strip adopts the rubber material that has elasticity and sets up at light filter 130 week side, when installing light filter 130 on casing 110, the casing 110 can be hugged closely to the shading strip of rubber material, avoids light to get into casing 110 from the gap between light filter 130 and the casing 110, reduces the influence that processor 120 received outside light, has further improved the accuracy of this material sensor.
In one possible technical solution, the light shielding strip and the housing 110 are correspondingly provided with mounting screw holes, and the optical filter 130 and the housing 110 are connected by bolts through the mounting screw holes and the light shielding strip.
In this technical scheme, when the light filter 130 is dirty or worn, the light passing can be affected, so that the judgment of the processor 120 on the type of the ground material can be affected, therefore, the mounting screw holes are arranged at the positions corresponding to the shell 110 and the shading strip, so that the light filter 130 can be detachably mounted on the shell 110 through bolts, when the sensitivity of the processor 120 is affected by the dirt and the wear of the light filter 130, the light filter 130 can be detached in a mode of detaching the bolts for cleaning or replacing, meanwhile, because the processor 120 is arranged in the accommodation cavity 140 with a single side opening, when the processor 120 fails, the accommodation cavity 140 can be in an open state by detaching the bolts on the shading strip through a tool, and operators can directly contact the processor 120 for operations such as detachment and maintenance on the light filter, so that the convenience and usability of the utility model are improved.
In one possible embodiment, the photosensitive chip is disposed at a position through which a light-emitting light path of the light-emitting chip passes.
In the technical scheme, the photosensitive chip is arranged on the predicted light reflection path, the reflected light at the position is stronger, the receiving effect of the photosensitive chip on the reflected light is better, and the usability of the utility model is further improved.
According to a second aspect of the application embodiment, there is provided a sweeping robot including: a robot body for sweeping floor; any one of the above material sensors is arranged on the sweeping robot body.
In this technical scheme, set up the material sensor on sweeping the floor the robot, the material sensor discerns ground material, and with the controller of discernment information feedback to sweeping the floor the robot, sweeping the floor the robot and can select different cleaning modes according to the information of material sensor feedback, thereby realize automatic discernment ground environment and automatic switch to corresponding cleaning mode, simultaneously, the material sensor can resist the ambient light interference, under the stronger environment of illumination daytime, the material sensor still can discern ground material and feed back to sweeping the control end of robot, make sweeping the floor the robot still can select cleaning modes according to ground material under the strong light environment, the ease of sweeping the robot has been improved.
In one possible technical scheme, the number of the material sensors is at least two, and at least one material sensor is arranged at the center of the bottom of the sweeping robot.
In this technical scheme, the material sensor sets up the central point that sweeps floor the robot bottom at least, sweeps floor the robot bottom and avoid light more, has further promoted and has swept floor the robot and has not disturbed technical effect of strong light environment.
It can be understood that the other material sensor is preferably arranged at the bottom of the sweeping robot and is deviated from the travelling direction, and the material sensor arranged in the deviated travelling direction can detect the front ground material more timely than the material sensor arranged in the center and feeds the material information back to the control end of the sweeping robot.
In the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. A material sensor, comprising:
a housing;
a processor disposed within the housing;
the optical filter is connected to the shell;
the light-emitting piece is arranged in the shell;
the processor is used for receiving the light reflected by the optical filter, the light emitting wavelength of the light emitting piece is adapted to the filtering wavelength of the optical filter, and the light emitting direction is towards the optical filter;
the optical filter is a bandpass optical filter with the filtering wavelength of 920nm to 960nm;
the luminous wavelength of the luminous element is 920nm to 960nm;
a light shielding strip disposed on a peripheral side of the optical filter;
the light shielding strip and the shell are correspondingly provided with mounting screw holes, and the optical filter and the shell are connected through the mounting screw holes and the light shielding strip through bolts.
2. The texture sensor of claim 1, wherein the processor comprises:
an integrated circuit;
a photosensitive chip disposed on the integrated circuit;
the light emitting piece comprises a light emitting chip, and the light emitting chip is arranged on the integrated circuit.
3. A material sensor according to claim 2, wherein:
the housing is internally provided with a containing cavity, the processor further comprises a circuit board, the circuit board is arranged in the containing cavity, and the integrated circuit is arranged on the circuit board.
4. A material sensor according to claim 2, wherein:
an opening is formed in one side of the housing, and the optical filter is used for covering the opening.
5. A material sensor according to claim 2, wherein:
the photosensitive chip is arranged at a position where a light-emitting light path of the light-emitting chip passes.
6. A robot for sweeping floor, comprising:
a robot body for sweeping floor;
the texture sensor of any one of claims 1 to 5, disposed on the sweeping robot body.
7. The robot cleaner of claim 6, wherein:
the material sensors are at least two, and at least one material sensor is arranged at the center of the bottom of the sweeping robot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223315451.3U CN219625344U (en) | 2022-12-06 | 2022-12-06 | Material sensor and robot sweeps floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223315451.3U CN219625344U (en) | 2022-12-06 | 2022-12-06 | Material sensor and robot sweeps floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219625344U true CN219625344U (en) | 2023-09-01 |
Family
ID=87768918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223315451.3U Active CN219625344U (en) | 2022-12-06 | 2022-12-06 | Material sensor and robot sweeps floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219625344U (en) |
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2022
- 2022-12-06 CN CN202223315451.3U patent/CN219625344U/en active Active
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