Robot cleaning device, system, and method for cleaning the robot cleaning device

Abstract

A robot cleaning device, a robot cleaning system, and a method for cleaning a robot cleaning device are provided. The robot cleaning device includes a base, configured to accommodate a robot and gather dirt discharged by the robot; a liquid ejector, configured to eject liquid to clean at least a surface of the base; and an ejection switch, connected to the liquid ejector, and configured to control whether to allow the liquid to flow into the liquid ejector.

Description

ROBOT CLEANING DEVICE, SYSTEM, AND METHOD FOR CLEANING THEROBOT CLEANING DEVICEBACKGROUND

[0001] In a cleaning robot system, a cleaning robot normally works with a cleaning robot base station to get charged, replace the cleaning liquid, or discharge dirt. The cleaning robot base station may include a basin for cleaning the cleaning robot’s mopping pads. During the cleaning process, the basin may quickly accumulate dirt and bad odor discharged by the cleaning robot, if not cleaned away from the basin regularly, the accumulated dirt and bad odor may reduce the cleaning performance of the cleaning robot. Therefore, it is necessary to clean the basin regularly.

[0002] The existing manner of cleaning the basin is manual. The user needs to remove the basin away from the base station and use a brush to manually clean the dirt in the basin. Therefore, the existing manner of cleaning the basin requires human effort and is timeconsuming. The cleaning results are usually not good or consistent as well.SUMMARY

[0003] The present disclosure is related to the technical field of cleaning robots, in particular to a robot cleaning device, a robot cleaning system, and a method for cleaning the robot cleaning device.

[0004] According to a first aspect, embodiments of the present disclosure provide a robot cleaning device, including: a base, configured to accommodate a robot and gather dirt discharged by the robot; a liquid ejector, configured to eject liquid to clean at least a surface of the base; and an ejection switch, connected to the liquid ejector, and configured to control whether to allow the liquid to flow into the liquid ejector.

[0005] According to a second aspect, embodiments of the present disclosure provide a robot cleaning system, including: a robot cleaning device, including a base configured to accommodate a robot and gather dirt discharged by the robot; and the robot, configured to leave the base for executing a cleaning task; wherein the robot cleaning device further includes: a liquid ejector, configured to eject liquid to clean at least a surface of the base after the robot left the base; and an ejection switch, connected to the liquid ejector, and configured to control whether to allow the liquid to flow into the liquid ejector.

[0006] According to a third aspect, embodiments of the present disclosure provide a method for cleaning a robot cleaning device, including: providing a robot cleaning device thatcomprises a base configured to accommodate a robot and gather dirt discharged by the robot; in response to determining that the robot discharged dirt into the base and left the base, controlling an ejection switch to enable a liquid ejector to eject liquid to at least a surface of the base, and controlling a discharger to discharge liquid waste generated when the liquid ejector cleans the base.BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to explain technical solutions in embodiments of the present disclosure more clearly, drawings needed in the description of these embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

[0008] FIG. 1 A is a schematic structural diagram of a robot cleaning device provided by an embodiment of the present disclosure.

[0009] FIG. IB is a schematic structural diagram of a robot cleaning device in a working status provided by an embodiment of the present disclosure.

[0010] FIG. 2 is a schematic structural diagram of an electric valve provided by an embodiment of the present disclosure.

[0011] FIG. 3 is a schematic structural diagram of a robot cleaning device provided by an embodiment of the present disclosure.

[0012] FIG. 4 is a schematic structural diagram of a retractable mechanism and a liquid ejector provided by an embodiment of the present disclosure.

[0013] FIG. 5 is a schematic structural diagram of a base of a robot cleaning device provided by an embodiment of the present disclosure.

[0014] FIG. 6 is a schematic structural diagram of a liquid pipe network of a robot cleaning device provided by an embodiment of the present disclosure.

[0015] FIG. 7 is a schematic structural diagram of a liquid pipe network of a robot cleaning device provided by an embodiment of the present disclosure.

[0016] FIG. 8 is a schematic structural diagram of a robot cleaning device provided by an embodiment of the present disclosure.

[0017] FIG. 9 is a schematic structural diagram of a robot cleaning system provided by an embodiment of the present disclosure.

[0018] FIG. 10 shows a computing environment coupled with a user interface.

[0019] FIG. 11 is a flowchart illustrating a method for cleaning a robot cleaning deviceaccording to an example of the present disclosure.

[0020] FIG. 12 is a flowchart illustrating a method for cleaning a robot cleaning device according to an example of the present disclosure.DETAILED DESCRIPTION

[0021] In order to make technical solutions and advantages of the present disclosure clearer, implementations of the present disclosure will be further described in detail below with reference to the drawings.

[0022] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise represented. The implementations set forth in the following description of examples do not represent all implementations consistent with the disclosure. Instead, they are merely examples of apparatuses and methods consistent with aspects related to the disclosure as recited in the appended claims.

[0023] Reference throughout this specification to “one embodiment,” “an embodiment,” “an example,” “some embodiments,” “some examples,” or similar language means that a particular feature, structure, or characteristic described is included in at least one embodiment or example. Features, structures, elements, or characteristics described in connection with one or some embodiments are also applicable to other embodiments, unless expressly specified otherwise.

[0024] FIG. 1 A is a schematic structural diagram of a robot cleaning device provided by an embodiment of the present disclosure. FIG. IB is a schematic structural diagram of a robot cleaning device in a working status provided by an embodiment of the present disclosure. As shown in FIG.1A, the robot cleaning device includes a base 10, a liquid ejector 20, and an ejection switch 30.

[0025] The base 10 is configured to accommodate a robot 40 and gather dirt discharged by the robot 40. In some embodiments, the base 10 may include an open chamber, for example, a basin, for accommodating the robot 40 when the robot 40 stays in or returns to the base 10. In some embodiments, the robot 40 may be configured to leave the base 10 to execute a cleaning task, which might be a cleaning program for cleaning a specific outer area, and return to the base 10 if it needs to get charged, replace the cleaning liquid, or discharge dirt. In some embodiments, the robot 40 may include at least one cleaning mopping pad and a pad cleaning mechanism, for example, a squeezer or a spinner, to remove the dirt from the mopping pad to the base 10. However, the internal structure of the robot 40 and the manner of cleaning therobot 40’s mopping pad are not limited to the embodiments of the present disclosure.

[0026] The liquid ejector 20 is configured to eject liquid to clean at least a surface of the base 10. As shown in FIG. IB, when the base 10 needs to be cleaned, the liquid is ejected by the liquid ejector 20 to the surface of the base 10 to clean at least one specific area of the base 10. In some embodiments, the robot cleaning device further includes a liquid inlet 50, connected to a liquid source to obtain liquid, and transmit the liquid to the liquid ejector 20. The liquid source may be a liquid tank installed in the base 10, or may be an external liquid provider, for example, a faucet. The liquid inlet 50 may transmit the liquid to the liquid ejector 20 through a pipe 60. In some embodiments, the pipe 60 may be made of Polyvinyl chloride (PVC). However, the liquid source of the liquid ejector 20 and the material of the pipe 60 for transmitting the liquid are not limited to the embodiments of the present disclosure.

[0027] The ejection switch 30 is connected to the liquid ejector 20, and configured to control whether to allow the liquid to flow into the liquid ejector 20. Since the basin would not need to be cleaned when the robot 40 does not finish the dirt-discharging process and has not left the base 10, the ejection switch 30 can hold the liquid in the pipe 60, and allow the liquid to flow into the liquid ejector 20 after the robot 40 has discharged dirt into the base 10 and has left the base 10. In some embodiments, the ejection switch 30 may be an electric valve, as shown in FIG.2. The electric valve may get instructions from a controller to determine whether to allow the liquid to flow into the liquid ejector 20. The electric valve may include a closing member, a valve seat, a spring, and a solenoid coil. When an open instruction is received, the power turns on and the solenoid coil generates electromagnetic force to lift the closing member from the valve seat, and the electric valve opens; when a close instruction is received, the power turns off and the electromagnetic force disappears, and the spring presses the closing member against the valve seat, and the valve closes. However, the detailed structure of the ejection switch 30 is not limited to the embodiments of the present disclosure.

[0028] By using the robot cleaning device provided by embodiments of the present disclosure, the base 10 can be cleaned by the liquid ejected by the liquid ejector 20 without being removed, and the ejection switch 30 can ensure the liquid flows into the liquid ejector 20 when the base 10 needs to be cleaned, and hold the liquid when the robot 40 stays in the base 10. The whole cleaning process is efficient and does not need human effort, and the cleaning results are great and consistent.

[0029] In some embodiments of the present disclosure, in order to further improve the cleaning effect of the base 10, the robot cleaning device may further include a pressure booster. The pressure booster may be disposed between the liquid inlet 50 and the liquid ejector 20, andconfigured to increase liquid pressure of the liquid. In this case, the pressure of the liquid ejected by the liquid ejector 20 can be more powerful, which can help to clean the stubborn dirt accumulated in the base 10. In some embodiments, the pressure booster may be a pressureincreasing pump. However, in some other embodiments, the liquid pressure of the liquid may be increased through some other manners, for example, by connecting the liquid inlet 50 to a high-pressure liquid source instead. The manners for increasing the liquid pressure are not limited to the embodiments of the present disclosure.

[0030] In some embodiments of the present disclosure, the robot cleaning device may further include a discharger 70, configured to discharge liquid waste generated after the liquid ejector 20 cleans the base 10. The discharger 70 can ensure the liquid waste is removed from the base 10 duly and will not reaccumulate in the base 10. In some embodiments, the discharger 70 may be connected to a liquid waste tank 71, which is configured to store the liquid waste discharged by the discharger 70. In some other embodiments, the discharger 70 may be connected to the sewer system and lead the liquid waste to the sewer directly. The manners for discharging the liquid waste are not limited to the embodiments of the present disclosure.

[0031] In some embodiments of the present disclosure, as shown in FIG. IB, the liquid ejector 20 is configured to eject multiple liquid streams toward the base 10, or the liquid ejector 20 is configured to rotatably eject the liquid toward the base 10. In some embodiments, the liquid ejector 20 is configured to eject multiple liquid streams toward the base 10, and the multiple liquid streams are rotatably ejected toward the base 10. In this case, the base 10 can be cleaned more thoroughly and deeply. The cleaning results can be further improved.

[0032] In some embodiments of the present disclosure, the liquid ejector 20 may include at least one ejecting nozzle 201, and the at least one ejecting nozzle 201 is configured to eject the liquid to at least one area of the base 10. In some embodiments, each of the at least one ejecting nozzle 201 may be configured to eject multiple liquid streams toward the base 10, and the multiple liquid streams are rotatably ejected toward the base 10. In this case, the base 10 can be cleaned even more thoroughly and deeply.

[0033] In some embodiments, as shown in FIG. 3, the liquid ejector 20 may include multiple ejecting nozzles 201, and the multiple ejecting nozzles 201 are configured to eject the liquid to different areas of the base 10. In this case, the base 10 can be cleaned even more thoroughly and deeply. In some embodiments, the arrangement of the multiple ejecting nozzles 201 may be adjusted according to the shape of the base 10. For example, when the base 10 has a rectangular bottom, and the multiple ejecting nozzles 201 may be arranged in parallel to eject the liquid to different areas of the rectangular bottom, so that a larger area can be covered andcleaned by the multiple ejecting nozzles 201. However, the number and arrangement of the multiple ejecting nozzles 201 are not limited to the embodiments of the present disclosure. In some embodiments, the multiple ejecting nozzles 201 may share one electric valve to reduce the product cost, as long as the liquid pressure is strong enough to drive the multiple ejecting nozzles 201.

[0034] In some embodiments, as shown in FIG.4, the robot cleaning device may further include a retractable mechanism 100. The retractable mechanism 100 is connected to the liquid ejector 20, configured to stretch out the liquid ejector 20 into the base 10 or retract the liquid ejector 20 from the base 10. The retractable mechanism 100 can ensure that the liquid ejector 20 will not block the robot 40 when the robot 40 is moving into / out from the base 10, which further improves the reliability of the product. In some embodiments, the retractable mechanism 100 may get instructions from a controller to determine whether to stretch out the liquid ejector 20 into the base 10 or retract the liquid ejector 20 from the base 10. The retractable mechanism 100 may include a telescopic motor and a rod connecting the telescopic motor to the liquid ejector 20. When a stretch-out instruction is received, the telescopic motor stretches out the rod with the liquid ejector 20; when a retract instruction is received, the telescopic motor retracts the rod with the liquid ejector 20. However, the detailed structure of the retractable mechanism 100 is not limited to the embodiments of the present disclosure. However, in some other embodiments, there would not be a retractable mechanism 100, and the ejecting nozzle 201 of the liquid ejector 20 may be pushed out by the liquid pressure when the ejection switch 30 allows the liquid to flow into the liquid ejector 20, and be retracted when the ejection switch 30 turns off. The retractable manner is not limited to the embodiments of the present disclosure.

[0035] In some embodiments, as shown in FIG. 9, the base 10 may accumulate dirt in several specific areas. The most effective way to clean these specific areas is to eject liquid streams into these areas in a targeted manner. With the liquid pressure of the targeted liquid streams, these specific areas can be cleaned within a short time. For example, as shown in FIGS. 6-7, the liquid ejector 20 may include a liquid pipe network 90. The liquid network any include multiple pipe section 901s, and each pipe section 901 of the multiple pipe section 901s includes at least one ejecting hole configured to eject the liquid to at least one area of the base 10. In this way, the liquid streams can be ejected to some specific areas where dirt is easily accumulated, such that the cleaning effect and efficiency can be further enhanced.

[0036] In some embodiments, as shown in FIG. 9, the base 10 may include a bottom surface including at least one uneven structure. Due to the limited space formed by the sharp shape change, dirt may be easily accumulated at the bottom contour of the at least one unevenstructure. To solve this issue, each pipe section 901 of the multiple pipe section 901s may extend along with a bottom contour of the at least one uneven structure, and the at least one ejecting hole is configured to eject the liquid to the bottom contour of the at least one uneven structure. In this way, the liquid streams can be ejected to the bottom contour of the at least one uneven structure, such that the cleaning effect and efficiency can be further enhanced. In some embodiments, the at least one uneven structure may include at least one ridge or at least one groove. However, the detailed shape or structure of the bottom surface is not limited to the embodiments of the present disclosure.

[0037] In some embodiments, as shown in FIG. 12, the robot cleaning device may further include a mounting ceiling 902. The mounting ceiling 902 is disposed above the base 10 and configured for mounting the liquid pipe network 90, such that the liquid pipe network 90 can be mounted above the base 10 without interfering with the robot when the robot is returning to the station. However, in some other embodiments, the liquid pipe network 90 may be installed into the station in some other manner, which is not limited to the embodiments of the present disclosure.

[0038] FIG.5 is a schematic structural diagram of a robot cleaning system provided by an embodiment of the present disclosure. As shown in FIG.5, the system includes a robot cleaning device, and a robot 40. The robot 40 is configured to leave the base 10 for executing a cleaning task. The robot cleaning device may apply the structure of any above embodiment of the robot cleaning device.

[0039] In the robot cleaning system provided by embodiments of the present disclosure, the base 10 can be cleaned by the liquid ejected by the liquid ejector 20 without being removed, and the ejection switch 30 can ensure the liquid flows into the liquid ejector 20 when the base 10 needs to be cleaned, and hold the liquid when the robot 40 stays in the base 10. The whole cleaning process is efficient and does not need human effort, and the cleaning results are great and consistent.

[0040] In some embodiments of the present disclosure, as shown in FIG.1 A, the robot cleaning device may further include a shell 80, which is configured to accommodate the base 10, the liquid ejector 20, and the ejection switch 30. In this case, the cleaning liquid will be spared into the base 10 more intensively and will not splash out to the floor outside the shell 80, which further improves the cleaning efficiency and helps to keep the floor clean, and the user will not see the liquid ejector 20 and the ejection switch 30 from the outlook of the shell 80, which improves the aesthetics design. However, in some other embodiments, the liquid ejector 20 and the ejection switch 30 may be installed into a user’s existing robot base station including thebase 10. For example, as shown in FIG.5, the liquid ejector 20 and the ejection switch 30 may be installed along the surface of the shell 80 of the robot base station, and the election switch is connected with the liquid ejector 20 through a pipe 60. In this case, the users’ existing robot base station can be updated conveniently and efficiently by installing the liquid ejector 20 and the ejection switch 30 onto the shell 80’s surface.

[0041] FIG. 10 shows a computing environment 610 coupled with a user interface 650. The computing environment 610 can be part of a data processing server. The computing environment 610 includes a processor 620, a memory 630, and an Input / Output (I / O) interface 640.

[0042] The processor 620 typically controls overall operations of the computing environment 610, such as the operations associated with display, data acquisition, data communications, and image processing. The processor 620 may include one or more processors to execute instructions to perform all or some of the steps in the above-described methods. Moreover, the processor 620 may include one or more modules that facilitate the interaction between the processor 620 and other components. The processor may be a Central Processing Unit (CPU), a microprocessor, a single chip machine, a Graphical Processing Unit (GPU), or the like.

[0043] The memory 630 is configured to store various types of data to support the operation of the computing environment 610. The memory 630 may include predetermined software 632. Embodiments of such data includes instructions for any applications or methods operated on the computing environment 610, video datasets, image data, etc. The memory 630 may be implemented by using any type of volatile or non-volatile memory devices, or a combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic memory, a flash memory, a magnetic or optical disk.

[0044] The I / O interface 640 provides an interface between the processor 620 and peripheral interface modules, such as a keyboard, a click wheel, buttons, and the like. The buttons may include but are not limited to, a home button, a start scan button, and a stop scan button.

[0045] In an embodiment, there is also provided a non-transitory computer-readable storage medium comprising a plurality of programs, for example, in the memory 630, executable by the processor 620 in the computing environment 610, for performing the above-described methods. Alternatively, the non-transitory computer-readable storage medium may have stored therein a bitstream or a data stream. The non-transitory computer-readable storage medium may be, for example, a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetictape, a floppy disc, an optical data storage device or the like.

[0046] In an embodiment, the is also provided a computing device comprising one or more processors (for example, the processor 620); and the non-transitory computer-readable storage medium or the memory 630 having stored therein a plurality of programs executable by the one or more processors, wherein the one or more processors, upon execution of the plurality of programs, are configured to perform the above-described methods.

[0047] In an embodiment, there is also provided a computer program product comprising a plurality of programs, for example, in the memory 630, executable by the processor 620 in the computing environment 610, for performing the above-described methods. For example, the computer program product may include the non-transitory computer-readable storage medium.

[0048] In an embodiment, the computing environment 610 may be implemented with one or more ASICs, DSPs, Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), FPGAs, GPUs, controllers, micro-controllers, microprocessors, or other electronic components, for performing the above methods.

[0049] The description of the present disclosure has been presented for purposes of illustration and is not intended to be exhaustive or limited to the present disclosure. Many modifications, variations, and alternative implementations will be apparent to those of ordinary skill in the art having the benefit of the teachings presented in the foregoing descriptions and the associated drawings.

[0050] Unless specifically stated otherwise, an order of steps of the method according to the present disclosure is only intended to be illustrative, and the steps of the method according to the present disclosure are not limited to the order specifically described above, but may be changed according to practical conditions. In addition, at least one of the steps of the method according to the present disclosure may be adjusted, combined or deleted according to practical requirements.

[0051] The embodiments were chosen and described in order to explain the principles of the disclosure and to enable others skilled in the art to understand the disclosure for various implementations and to best utilize the underlying principles and various implementations with various modifications as are suited to the particular use contemplated. Therefore, it is to be understood that the scope of the disclosure is not to be limited to the specific embodiments of the implementations disclosed and that modifications and other implementations are intended to be included within the scope of the present disclosure.

[0052] The above methods may be implemented using an apparatus that includes one or more circuitries, which include application specific integrated circuits (ASICs), digital signalprocessors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components. The apparatus may use the circuitries in combination with the other hardware or software components for performing the above described methods. Each module, sub-module, unit, or sub-unit disclosed above may be implemented at least partially using the one or more circuitries.

[0053] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed here. This application is intended to cover any variations, uses, or adaptations of the disclosure following the general principles thereof and including such departures from the present disclosure as come within known or customary practice in the art. It is intended that the specification and embodiments be considered as exemplary only.

[0054] It will be appreciated that the present disclosure is not limited to the exact embodiments described above and illustrated in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof.

[0055] FIG. 11 is a flowchart illustrating a method for cleaning a robot cleaning device according to an example of the present disclosure. In some embodiments, the device may be a device including the processor 620, and a robot cleaning device that includes a base configured to accommodate a robot and gather dirt discharged by the robot.

[0056] In Step 701, the processor 620 of the device may in response to determining that the robot discharged dirt into the base and left the base, control an ejection switch to enable a liquid ejector to eject liquid to at least a surface of the base, and control a discharger to discharge liquid waste generated when the liquid ejector cleans the base.

[0057] By the method provided by embodiments of the present disclosure, the base can be cleaned by the liquid ejected by the liquid ejector without being removed, and the ejection switch can ensure the liquid flows into the liquid ejector when the base needs to be cleaned, and hold the liquid when the robot stays in the base. Furthermore, by ejecting liquid to the base and discharging liquid waste generated at the same time, the liquid waste can be discharged duly so that the dirt in the liquid waste will not reaccumulate in the base. The whole cleaning process is efficient and does not need human effort, and the cleaning results are great and consistent.

[0058] In some embodiments, the processor 620 of the device may in response to a first condition, determine that the robot discharged dirt into the base and left the base. The first condition comprises any one of a first instruction from a sensor, a first voice control command,or a first preset timing. For example, the sensor may be an infrared sensor sending the first instruction when the robot passes through the sensor’s sensing area, the processor may process the user’s voice command like “start base cleaning”, or the first preset timing may be set as every 12 hours so that the base will be cleaned twice a day. However, the detailed implementation of the first condition is not limited to the embodiments of the present disclosure.

[0059] In some embodiments, as shown in FIG.8, the processor 620 of the device may further execute the following steps:

[0060] In Step 801, the processor 620 of the device may in response to determining that the robot discharged dirt into the base and left the base, control a retractable mechanism to stretch out the liquid ejector into the base.

[0061] In Step 802, after the liquid ejector has been stretched out, the processor 620 of the device may control an ejection switch to enable a liquid ejector to eject liquid to at least a surface of the base, and control a discharger to discharge liquid waste generated when the liquid ejector cleans the base.

[0062] In Step 803, the processor 620 of the device may in response to determining that the base has been cleaned, control the retractable mechanism to retract the liquid ejector from the base.

[0063] The retractable mechanism can ensure that the liquid ejector will not block the robot when the robot is moving into / out from the base, which further improves the reliability of the product.

[0064] In some embodiments, the processor 620 of the device may in response to a second condition, determine that the base has been cleaned, wherein the second condition comprises any one of a second instruction from a sensor, a second voice control command, or a second preset timing. For example, the sensor may be an odor sensor sending the first instruction when the sensor cannot capture any odor in the base, the processor may process the user’s voice command like “stop base cleaning”, or the first preset timing may be set as every 12 hours so that the base will be checked whether the base needs to be cleaned twice a day. However, the detailed implementation of the second condition is not limited to the embodiments of the present disclosure.

[0065] In the present disclosure, the terms “first”, “second”, or the like are used for descriptive purposes only, and should not be taken to indicate or imply relative importance, or implicitly indicate the number of indicated technical features.

[0066] The above description is only for those skilled in the art to understand the technicalsolutions of the present disclosure, and is not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

WHAT IS CLAIMED IS:

1. A robot cleaning device, comprising: a base, configured to accommodate a robot and gather dirt discharged by the robot; a liquid ejector, configured to eject liquid to clean at least a surface of the base; and an ejection switch, connected to the liquid ejector, and configured to control whether to allow the liquid to flow into the liquid ejector.

2. The robot cleaning device according to claim 1, further comprising: a liquid inlet, connected to a liquid source to obtain liquid, and configured to transmit the liquid to the liquid ejector.

3. The robot cleaning device according to claim 1, further comprising: a discharger, configured to discharge liquid waste generated when the liquid ejector cleans the base.

4. The robot cleaning device according to claim 1, wherein the liquid ejector is configured to eject multiple liquid streams toward the base; or the liquid ejector is configured to rotatably eject the liquid toward the base.

5. The robot cleaning device according to claim 1, wherein the ejection switch comprises an electric valve.

6. The robot cleaning device according to claim 1, wherein the liquid ejector comprises at least one ejecting nozzles, and the at least one ejecting nozzle is configured to eject the liquid to at least one area of the base.

7. The robot cleaning device according to claim 6, wherein the base has a rectangular bottom, and the multiple ejecting nozzles are arranged in parallel to eject the liquid to different areas of the rectangular bottom.

8. The robot cleaning device according to claim 1, wherein the liquid ejector comprises: a liquid pipe network, comprising multiple pipe sections, wherein each pipe section of the multiple pipe sections comprises at least one ejectinghole configured to eject the liquid to at least one area of the base.

9. The robot cleaning device according to claim 8, wherein the base comprises a bottom surface comprising at least one uneven structure, each pipe section of the multiple pipe sections extends along with a bottom contour of the at least one uneven structure, and the at least one ejecting hole is configured to eject the liquid to the bottom contour of the at least one uneven structure.

10. The robot cleaning device according to claim 8, wherein the at least one uneven structure comprises at least one ridge or at least one groove.

11. The robot cleaning device according to claim 1, further comprises: a mounting ceiling, disposed above the base and configured for mounting the liquid pipe network.

12. A robot cleaning system, comprising: a robot cleaning device, comprising a base configured to accommodate a robot and gather dirt discharged by the robot; and the robot, configured to leave the base for executing a cleaning task; wherein the robot cleaning device further comprises: a liquid ejector, configured to eject liquid to clean at least a surface of the base after the robot left the base; and an ejection switch, connected to the liquid ejector, and configured to control whether to allow the liquid to flow into the liquid ejector.

13. The system according to claim 12, wherein the robot cleaning device further comprises: a liquid inlet, connected to a liquid source to obtain liquid, and configured to transmit the liquid to the liquid ejector.

14. The system according to claim 12, wherein the robot cleaning device further comprises: a discharger, configured to discharge liquid waste generated when the liquid ejectorcleans the base, and the system further comprises: a liquid waste tank, connected to the discharger to store the liquid waste discharged by the discharger.

15. The system according to claim 12, wherein the liquid ejector is configured to eject multiple liquid streams toward the base; or the liquid ejector is configured to rotatably eject the liquid toward the base.

16. The system according to claim 12, wherein the ejection switch comprises an electric valve.

17. The system according to claim 12, wherein the liquid ejector comprises at least one ejecting nozzle, and the at least one ejecting nozzle is configured to eject the liquid to at least one areas of the base.

18. The robot cleaning device according to claim 12, wherein the liquid ejector comprises: a liquid pipe network, comprising multiple pipe sections, wherein each pipe section of the multiple pipe sections comprises at least one ejecting hole configured to eject the liquid to at least one area of the base.

19. The robot cleaning device according to claim 18, wherein the base comprises a bottom surface comprising at least one uneven structure, each pipe section of the multiple pipe sections extends along with a bottom contour of the at least one uneven structure, and the at least one ejecting hole is configured to eject the liquid to the bottom contour of the at least one uneven structure.

20. The robot cleaning device according to claim 18, wherein the at least one uneven structure comprises at least one ridge or at least one groove.

21. The robot cleaning device according to claim 12, further comprises: a mounting ceiling, disposed above the base and configured for mounting the liquidpipe network.

22. The system according to claim 12, wherein the robot cleaning device further comprises: a shell, configured to accommodate the base, the liquid ejector, and the ejection switch.

23. A method for cleaning a robot cleaning device, method comprising: providing a robot cleaning device that comprises a base configured to accommodate a robot and gather dirt discharged by the robot; in response to determining that the robot discharged dirt into the base and left the base, controlling an ejection switch to enable a liquid ejector to eject liquid to at least a surface of the base, and controlling a discharger to discharge liquid waste generated when the liquid ejector cleans the base.

24. The method according to claim 23, further comprises: in response to determining that the robot discharged dirt into the base and left the base, controlling a retractable mechanism to stretch out the liquid ejector into the base; and in response to determining that the base has been cleaned, controlling the retractable mechanism to retract the liquid ejector from the base.

25. The method according to claim 23, further comprises: in response to a first condition, determining that the robot discharged dirt into the base and left the base, wherein the first condition comprises any one of a first instruction from a sensor, a first voice control command, or a first preset timing; or in response to a second condition, determining that the base has been cleaned, wherein the second condition comprises any one of a second instruction from a sensor, a second voice control command, or a second preset timing.

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