Description: The following specification particularly describes the invention and the manner in which it is to be performed:
TECHNICAL FIELD

[001] The present invention relates to a system and cleaning method, particularly to cleaning hospital and public places for reducing health care associated infection with robotic vacuum cleaner for cleaning and disinfecting wet and dry surfaces.
BACKGROUND
[002] Environmental surface decontamination is a crucial tool to prevent the spread of infections in hospitals. Keeping hospitals clean is a crucial patient safety issue. Hospital environmental hygiene is far more complex than other types of cleaning. There can be many kinds of spillage and stains on hospital floors which often has a risk of contaminating the nearby areas and thus causing many diseases. To clean this waste often human intervention is required thus raising the risk of passing harmful viruses or bacteria to human body.
[003] Vacuum cleaners are effective means which are employed for cleaning dust and getting rid of allergens beside these vacuum cleaner are easy to use, they save time and energy. Generally vacuum cleaner are equipped with suction motors and filters to pull in dirt and dust.
[004] WO2005117676A1 relates to a vacuum cleaner comprising of a movable valve member and to a suction changeover valve. The vacuum cleaner is capable of cleaning only the dry waste thus has a limited application in areas where there is more of liquid spillage.
[005] US5355549A relates to a vacuum cleaner apparatus with valving mechanism for switching air flow between floor cleaning and an accessory. The valve assembly is a clear plastic and disposed to rotate about an axis perpendicular to the vacuum air streams that it diverts. Thus enabling the vacuum cleaner with suction creating means for carrying dirty air from a floor surface. The invention provides a high suction assembly for dry cleaning only which itself limits the vacuum cleaner to be used in healthy environment like homes and to some extent offices. It does not help in disinfecting the surrounding air.
[006] US7581287B2 relates to a vacuum cleaner apparatus that incorporates a dirt collection vessel including a dirt collection chamber and a spiral air guide that provides a spiral air path for improved cleaning efficiency. The suction generator is provided in fluid communication with the suction inlet, the dirt collection vessel and the spiral air guide. The designed product is only for cleaning dry surfaces without disinfecting the surface and the surrounding air also it has limitation that it cannot be used for cleaning wet surfaces.
[007] US20160271803A1 discloses a robotic disinfection system including a drive mechanism to move the robot and a disinfection module which comprises of ultraviolet source and a blocking module which restricts the UV radiations in specific direction. The robot can only disinfect but has no feature which assists in cleaning the surfaces.
[008] US5608945A relates to a wet/dry utility vacuum cleaner which has separate chamber for collecting dry and wet waste, two suction inlets and two different communication fluid links. The device as claimed in the invention is suitable for domestic use but has poor applicability to public places like hospitals, hotels, railway stations where spillage and stains can be infectious in nature
[009] However present invention is entirely different from the prior art in terms of the need to develop a system and method which is cost effective in cleaning both wet and dry surfaces and different types of contaminants and spillages that are generated in hospitals.

SUMMARY
[0010] The present invention is related to robotic vacuum cleaner for cleaning and disinfecting wet and dry surfaces especially employable to hospitals. The smart vacuum cleaner is capable of working in different operating modes and hence can be employed in ICUs, OPD clinic, isolation wards etc.
[0011] In one of the implementation, the smart vacuum cleaner (101) is a capable of dry and wet cleaning.
[0012] In another implementations, the functionality of the smart vacuum cleaner is decided by the person using the smart vacuum cleaner depending upon the spillage type categorized as solid waste, liquid waste, type of spillage.
[0013] In another implementation, the multifunctional smart vacuum cleaner cleans harmful spillage like human blood, bodily fluids, chemical spillage etc.
[0014] In another implementation, based upon the type of waste the user selects the type of disinfectant which is first sprayed and applied to the infected area and afterwards cleaned.
[0015] In another implementation, based upon the user consciousness after the disinfectant cleaning of the selected area the sterilization is done by spraying the sterilization solvent.
[0016] In another implementation, the air sterilization is carried out by employing ultraviolet lamp (118) which emits the energy outwardly from the robot.
[0017] In another implementation, the smart vacuum cleaner also includes ESP EYE module (112) interfaced to a wifi enabled (111) microcontroller (110).
[0018] In another implementation, the microcontroller is also interfaced with ultrasonic sensor (114), infrared sensor (115) and LDR sensor (116) for detecting obstacles and navigating the vacuum cleaner (101).
[0019] In another implementation, the wifi enabled microcontroller (110) is connected to a remote user through a dedicated mobile app (121) via a cloud server (120).
[0020] In another implementation, the smart vacuum cleaner can be controlled and operated using an IR communication remote control (105).

BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The foregoing detailed description of embodiments is better understood when read in conjunction with the attached drawing.
[0022] Figure 1 is block diagram illustrating the embodiments of the present invention.
[0023] The figure depicts an embodiment of the present disclosure for the purpose of illustration and better understanding only.

DETAILED DESCRIPTION

[0024] Some embodiments of this disclosure, illustrating all its features, will now be discussed in detail.
[0025] The present invention is related to cleaning hospital and public places for reducing health care associated infection with robotic vacuum cleaner for cleaning and disinfecting wet and dry surfaces.
[0026] In one of the embodiments, the multifunctional smart vacuum cleaner (101) is a capable of dry and wet cleaning
[0027] Referring to figure 1, the vacuum cleaner (101) has a plurality of motor for performing cleaning and sterilization work. For assisting the movement of the vacuum cleaner (101) across the periphery there is a wheel motor (107), for cleaning and wiping there is vacuum motor (106) and wiper motor (108) and for spraying disinfectant and antiseptic there is a spray motor (109).
[0028] Referring to figure 1, the smart vacuum cleaner (101) has plurality of compartments. For storing the accumulated waste there is waste collection compartment (102) and there is a chemical compartment (122) for storing the chemicals. The chemical compartment (102) has two chambers namely disinfectant chamber (103) and other is antiseptic chamber (104).
[0029] Referring to figure 1, the smart vacuum controller (101) can be controlled using microcontroller (110). The microcontroller (110) is interfaced to a number of sensors which helps in making the vacuum cleaner (101) to operate in an automated way. The navigation sensor module (113) has ultrasonic sensors (114), IR sensors (115) and LDR sensor (116) which is used for obstacle detection and prevention thus helpful in navigating the vacuum cleaner.
[0030] Referring to figure 1, the smart vacuum cleaner (101) can also be made to operate by the user either remotely, or at some line of sight distance. For remotely stationed user through the dedicated mobile app (121) the vacuum cleaner is assessed using cloud server (120) which connects to the microcontroller unit (110) through wifi module (111). For assisting the cleaning and sterilization process ESP EYE module is interfaced with the controller which streams the live video into a stream of images which is sent to the user mobile application (121) through the cloud server (120). For line of sight operation the IR sensor based remote control (105) is used for controlling the operation of the smart vacuum cleaner (101)
[0031] In another embodiment, under the manual control of the smart vacuum cleaner (101) depending upon the type of waste or spillage the user selects the dry or the wet cleaning. The user selects the type of disinfectant which is first sprayed and applied to the infected area and afterwards cleaned depending upon the type of spillage. Finally UV lamps are engaged for sterilization.
[0032] In another embodiment, under the line of sight process the user makes use of the remote control (105) and controls the navigation, cleaning and sterilization process with the help of pre-programmed keys which operates the vacuum cleaner (101) with the inclusion of the microcontroller (110). The ESP EYE module (112) interfaced to the microcontroller (110) streams the live images to the display module of the remote control (105) for assisting the user in controlling the operation of the smart vacuum cleaner (101).
[0033] In another embodiment, for the remote user for operating the vacuum cleaner (101) the user has to login to a dedicated mobile app (121) which is connected through cloud server (120) to the vacuum cleaner (101) through wifi enabled (111) microcontroller (110). The ESP EYE module (112) interfaced to the microcontroller (110) streams the live images to the display module of the remote control (105) for assisting the user in controlling the operation of the smart vacuum cleaner (101).
[0034] In another embodiment, the multifunctional smart vacuum cleaner can be used for cleaning and disinfecting purposes in healthcare industries.
[0035] In another embodiment, the multifunctional smart vacuum cleaner can be employed to disinfect isolated areas like quarantine areas, ICU wards, OPD’s and nursing homes
[0036] In another embodiment, Chlorhexidine(CHX) acetate can be employed as a disinfectant and as an antiseptic used to clean floors in ICU.
[0037] In another embodiment, the disinfectants used to clean spillages are Formaldehyde based disinfectant, hydrogen peroxide and sodium hypochloride.
[0038] In another embodiment, the ESP EYE module (112) has built in camera of 2MP supported with 8 MB PSRAM memory with 4MB flash storage.

EXAMPLE

[0039] Referring to figure 1, under autonomous control the smart vacuum cleaner (101) makes uses of plurality of sensors for detecting the obstacles by employing ultrasonic sensors (114) . The data is fed to the microcontroller (110) which then employs the LDR sensors (116) for controlling the movement of the vacuum controller. The vacuum controller (101) follows the wet cleaning process where first the disinfectant is sprayed and then cleaned using the wiping process. After the wiping process the sterilization is done by employing ultraviolet rays in the user specific orientation.
[0040] In another embodiment, the smart vacuum cleaner (101) is programmed to perform the cleaning process by pre-feeding the room layout which is pre-accessed by the smart vacuum controller (101) under manual navigation thus enabling the vacuum cleaner to perform fast operation. To further automate the process the cleaning process is also pre-programmed depending upon the cleaning, disinfecting and sterilization requirement defined by the user for the selected area.

Claims: We claim:
1. A smart vacuum cleaner (101) suitable for cleaning and disinfecting dry and wet surfaces, wherein the vacuum cleaner comprises of :
a. an onboard control unit (119) for manually controlling the navigation, cleaning, disinfecting, sterilization operation;
b. a plurality of compartments for collecting waste, storing disinfectants;
c. a microcontroller (110) unit, wherein, the microcontroller unit provides user the flexibility of operating the vacuum cleaner (101) either within line of sight operation or from remote location or in autonomous mode;
and
d. a cloud server (120), wherein, the cloud server (120) connects the remote user to the vacuum cleaner (101) through a dedicated mobile app (121)
2. The smart vacuum cleaner (101) as claimed in claim 1, wherein, the onboard control unit (101) is interfaced to an UV lamp (118) for sterilization, a motor module (123) having a plurality of motor, for navigation wheel motor (107) is engaged, for cleaning and wiping vacuum motor (106) and wiper motor (108) are engaged, for spraying disinfectant and antiseptic spray motor (109) is engaged.
3. The smart vacuum cleaner (101) as claimed in claim 1, wherein, for storing the accumulated waste there is a waste collection compartment (102), a chemical compartment (102) has two chambers for storing disinfectant and antiseptic in disinfectant chamber (103) and in antiseptic chamber (104) respectively.
4. The smart vacuum cleaner (101) as claimed in claim 1, wherein, the microcontroller unit (110) is interfaced to the motor module (123), an ESP EYE module (112) which converts the live video stream into stream of images, a real time clock module (117) which tracks the time and date for the microcontroller, wifi module (111), the UV lamp (118) and a navigation sensor module (113) having a plurality of ultrasonic sensors (114), IR sensor (115), LDR sensor (116),
5. A method of employing vacuum cleaner for cleaning, disinfecting and sterilization, wherein the method comprises of:
a. manual mode, wherein, under the manual control of the smart vacuum cleaner (101) depending upon the type of waste or spillage the user selects the dry or the wet cleaning, the user selects the type of disinfectant which is first sprayed and applied to the infected area and afterwards cleaned depending upon the type of spillage, finally UV lamps are engaged for sterilization;
b. line of sight control mode, wherein, under the line of sight process the user communicates with the microcontroller unit (110) of the vacuum controller through a IR sensor based remote control (105), the ESP EYE module (112) interfaced to the microcontroller (110) streams the live images to the display module of the remote control (105), the remote control also has pluarity of pre programmed keys through which the user controls the navigation by controlling the wheel motor (107) movement, initiates he waste collection by employing vacuum motor (106), applies disinfectant and antiseptic by employing spray motor (109), cleans the selected area by employing wiper motor (108), vacuum motor (106) finally employs UV lamps (118) for sterilization;
c. remote user control, wherein , for the remote user for operating the vacuum cleaner (101) the user has to login to the dedicated mobile app (121) which is connected through the cloud server (120) to the vacuum cleaner (101) through wifi enabled (111) microcontroller (110), the ESP EYE module (112) interfaced to the microcontroller (110) streams the live images to the display module of the mobile app (121), the mobile app (121) has inbuilt functions through which the user controls the navigation by controlling the wheel motor (107) movement, initiates he waste collection by employing vacuum motor (106), applies disinfectant and antiseptic by employing spray motor (109), cleans the selected area by employing wiper motor (108), vacuum motor (106) finally employs UV lamps (118) for sterilization
and
d. autonomous mode, wherein, under autonomous control the smart vacuum cleaner (101) makes uses of plurality of sensors for detecting the obstacles by employing ultrasonic sensors (114), the data is fed to the microcontroller (110) which then employs the LDR sensors (116) for controlling the movement of the vacuum controller, the vacuum controller (101) follows the wet cleaning process where first the disinfectant is sprayed and then cleaned employing the wiper motor (108) followed by waste collection employing vacuum motor (106) and lastly the sterilization is done by employing UV lamps (118).
e. automatic energy saving mode, wherein, the smart vacuum cleaner (101) is programmed fed under manual navigation for feeding the room or area layout to perform selected pre-defined cleaning process depending upon the cleaning, disinfecting and sterilization requirement defined by the user for the selected area.