[0001] The present disclosure relates, in general, to a to dispensing device, and more specifically, relates to an apparatus for dispensing sanitizer automatically based on the hand size of the user.

BACKGROUND
[0002] Technology helps in our day-to-day life to cover basic hygiene needs. The automatic sanitizer dispenser manages to sanitize our hands without forcing users to touch them even for a second. However, an excessive quantity of sanitizer liquid is used, while operating automatic sanitizer dispenser. As more amount of sanitizer liquid is drawn out, it takes more time, and the hand sanitizer is not used efficiently.
[0003] Currently, a few of the sanitizers known in the art can include foot sanitizer, hand sanitizer bottle with nozzle, simple automatic sanitization machine, etc. In foot sanitizers, one does not have to touch the sanitizer, however it is difficult to estimate the amount of sanitizer needed for the user. The use of sanitizer with nozzle bottle requires touching the bottle which can lead to bacterial infection. In simple automatic sanitization machine, the sensors are used, however they are not scanning germs on the hand and an excess amount of sanitizer liquid is wasted.
[0004] Therefore, there is a need in the industry to provide a cost-effective device that can dispense the specified quantity of sanitizer effectively by solving the aforementioned problems.

OBJECTS OF THE PRESENT DISCLOSURE
[0005] An object of the present disclosure relates, in general, to a to dispensing device, and more specifically, relates to an apparatus for dispensing sanitizer automatically based on the hand size of the user.
[0006] Another object of the present disclosure is to provide an apparatus that can dispense specified quantity of sanitizer based on the determined value of the hand of the user.
[0007] Another object of the present disclosure is to provide an apparatus that can include a germ detector configured to prevent germs from the hand of the user.
[0008] Another object of the present disclosure is to provide an automated apparatus that does not require any physical touch of the apparatus before sanitizing hands.
[0009] Yet another object of the present disclosure is to provide an apparatus can be user-friendly and cost-effective.

SUMMARY
[0010] The present disclosure relates, in general, to a to dispensing device, and more specifically, relates to an apparatus for dispensing sanitizer automatically based on the hand size of the user.
[0011] In an aspect, the present disclosure provides an apparatus for dispensing liquid sanitizer, the apparatus including: a housing includes a container adapted for storage of the liquid sanitizer; a sensor configured in the housing, the sensor configured to obtain one or more images of a hand of a subject; a valve configured with the container, the valve operable by a motor to allow passage of the liquid sanitizer from the container; one or more light source configured in the housing; a processor operatively coupled with the sensor, the motor and the light source, the processor operatively coupled to a memory, the memory storing instructions executable by the processor to: receive, from the sensor, the one or more images of the hand of the subject; analyse, the received one or more images to extract a first set of attributes from the one or more images, the first set of attributes pertaining to one or more physical attributes of the hand of the subject; analyse, the received one or more images to extract a second set of attributes from the one or more images, the second set of attributes pertaining to a one or more contamination of the hand of the subject; classify, the extracted first set of attributes and second set of attributes based on matching of the extracted first set of attributes and second set of attributes with a corresponding reference set of attributes, the classification pertaining to one or more physical attributes of the hand of the subject and a corresponding contamination of the hand of the subject; extract, from the classified set of attributes, a value for the hand of the subject, wherein, based on determination of the value for the hand of the subject, the processor is configured to operate the valve for a predetermined period of time to allow dispensation of a predetermined quantity of the liquid sanitizer, the predetermined quantity determined as being required to decontaminate the hand of the subject, and wherein the processor is configured to operate the one or more light sources to emit light indicating a current state of contamination of the hand of the user.
[0012] In an embodiment, the one or more physical attributes can include any or a combination of surface area of the hands, length of hands, width of hand, and thickness hand.
[0013] In another embodiment, the one or more contamination of the hand can include any or a combination of quantity of germs, types of germs present in the hand of the subject.
[0014] In another embodiment, the sensor can be a microscope camera.
[0015] In another embodiment, the one or more light sources, based on the determined value of the hand of the subject, can be configured to emit light with corresponding colour attributes.
[0016] In another embodiment, one or more light sources includes a combination of light emitting diodes (LEDs).
[0017] In another embodiment, a power source can be located in the housing to supply power to the apparatus.
[0018] In another embodiment, based on the determined value of the hand of the subject, the valve can be opened/closed to dispense the predetermined quantity of liquid.
[0019] In another embodiment, a germ detector can be configured in the housing to prevent germs.
[0020] In an aspect, the present disclosure provides a method for dispensing liquid sanitizer, the method including: obtaining, from a sensor configured in a housing, one or more images of a hand of a subject, wherein, the housing include a container adapted for storage of the liquid sanitizer; receiving, at a computing device, the one or more images of the hand of the subject; analysing, at the computing device, the received one or more images to extract a first set of attributes from the one or more images, the first set of attributes pertaining to one or more physical attributes of the hand of the subject; analysing, at the computing device, the received one or more images to extract a second set of attributes from the one or more images, the second set of attributes pertaining to a one or more contamination of the hand of the subject; classifying, at the computing device, the extracted first set of attributes and second set of attributes based on matching of the extracted first set of attributes and second set of attributes with a corresponding reference set of attributes, the classification pertaining to one or more physical attributes of the hand of the subject and a corresponding contamination of the hand of the subject; extracting, at the computing device, from the classified set of attributes, a value for the hand of the subject; wherein, based on determination of the value for the hand of the subject, the computing device is configured to operate the valve for a predetermined period of time to allow dispensation of a predetermined quantity of the liquid sanitizer, the predetermined quantity determined as being required to decontaminate the hand of the subject, and wherein the computing device is configured to operate the one or more light sources to emit light indicating a current state of contamination of the hand of the user.
[0021] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The following drawings form part of the present specification and are included to further illustrate aspects of the present disclosure. The disclosure may be better understood by reference to the drawings in combination with the detailed description of the specific embodiments presented herein.
[0023] FIG. 1A and FIG. 1B illustrate exemplary representation of an apparatus for dispensing liquid sanitizer, in accordance with an embodiment of the present disclosure.
[0024] FIG. 2 illustrates an exemplary flow diagram for a method for operating the apparatus, in accordance with an embodiment of the present disclosure.
[0025] FIG. 3 illustrates an exemplary flow diagram for a method for dispensing liquid sanitizer, in accordance with an embodiment of the present disclosure.
[0026] FIG. 4 illustrates an exemplary computer system in which or with which embodiments of the present invention can be utilized in accordance with embodiments of the present disclosure.

DETAILED DESCRIPTION
[0027] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[0028] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[0029] The present disclosure relates, in general, to a to dispensing device, and more specifically, relates to an apparatus for dispensing sanitizer automatically based on the hand size of the user. The apparatus can capture the image of the hand of the user, extract the physical attributes of the hand of the user, and process the captured images to generate an output signal to operate the valve and the light source accordingly to automatically dispense the liquid onto the persons hands.
[0030] FIG. 1A and FIG. 1B illustrate exemplary representation of an apparatus for dispensing liquidsanitizer, in accordance with an embodiment of the present disclosure.
[0031] Referring to FIG. 1A, an apparatus 100 can include a housing defining a base, a top portion and a pair of side walls. The side walls can be coupled to the base and the top portion of the apparatus. The housing can include a container adapted for storage of the liquid.The apparatus 100 can include a sensor 102 (also referred to as image capturing unit 102, herein), one or more light emitting diodes (LEDs) 108, motor 110, a processor 104, a memory 106, and an output unit 112 (also referred to as an outlet valve 112, herein). At a rear side of the apparatus 100, a mounting bracket or mounting holes may be included for attaching the apparatus to a wall, a table, a dispenser stand or other supporting structure.
[0032] In an embodiment, the sensor 102 can be a microscope with inbuilt image capturing unit. In an exemplary embodiment, the microscope with inbuilt image capturing unit may be a 5MP digital camera, the image capturing unit can be configured for capturing the images of a hand of a subject/user. The sensor 102 can be configured in the housing, the sensor 102 configured to obtain one or more images of the hand of the subject, when the user places his/her hand in the proximity of the apparatus.
[0033] In another embodiment, an electrically powered motor 110 can be configured in the housing, the motor operatively coupled to the valve 112. The valve 112 configured with the container, the valve 112 operable by the motor 110 to allow passage of the liquid from the container. In an exemplary embodiment, the motor may be a 5-volt direct current (DC) motor. The DC motor may be driven by a pulse width modulated (PWM) signal or another electrical signal configuration. The valve 112 may be provided in the base of the housing, the motor 110 can be operated to open/close the outlet valve 112 for pre-defined time period based on the output signal received from the processor to automatically dispense the liquid e.g., disinfecting solution onto the persons hands.
[0034] Additionally, one or more light source 108 can be configured in the housing. The light source may include LEDs or any combination thereof. In an exemplary embodiment, the light source 108 can include red LEDs and green LEDs. The processor 104 can be operatively coupled to the light source 108. The light source 108 can receive signal from the processor 104 and can activate the red LED or green LED accordingly. The red LED or green LED can be actuated based on the processed image of the hand of the user.
[0035] For instance, the user, when places his/her hands near the apparatus, the camera can capture the image of the hand, and can process the captured image and generate an output signal to operate the LEDs. The green LED can be activated, when the determined value for the hand indicates low germs and small hands, similarly the red LED can be activated, when the determined value for the hand indicates high germs and big hands. Thus, variable dosing of sanitizer may be obtained by operation of the valve 112 by the motor 110.
[0036] In an embodiment, the processor 104 operatively coupled with the sensor 102, the motor 110 and the light source 108, the processor 104 operatively coupled to a memory 106, the memory 106 storing instructions executable by the processor to receive, from the sensor 102, the one or more images of the hand of the subject. The received one or more images can be analysed to extract a first set of attributes from the one or more images, the first set of attributes pertaining to one or more physical attributes of the hand of the subject. The physical attributes may be any or a combination of surface area of the hands, length of hands, width of hand, and thickness hand.
[0037] The processor 104 can analyse, the received one or more images to extract a second set of attributes from the one or more images, the second set of attributes pertaining to a one or more of contamination of the hand of the subject. The contamination of the hand may include any or a combination of quantity of germs, types of germs present in the hand of the subject. The extracted first set of attributes and the second set of attributes can be classified based on matching of the extracted first set of attributes and second set of attributes with a corresponding reference set of attributes.
[0038] The classification pertaining to a one or more physical attributes of the hand of the subject and a corresponding contamination of the hand of the subject. The classification of one or more physical attributes with corresponding contamination of the hand of the subject can include e.g., low germs and small hands, low germs and big hands, high germs and small hands and high germs and big hands and any combination thereof.
[0039] The processor 104 can extract, from the classified set of attributes, a value for the hand of the subject, wherein, based on determination of the value for the hand of the subject, the processor 104 configured to operate the valve for a predetermined period of time to allow dispensation of a predetermined quantity of the liquid sanitizer, the predetermined quantity determined as being required to decontaminate the hand of the subject, and the processor (104) can be configured to operate the one or more light sources (108) to emit light indicating a current state of contamination of the hand of the user.
[0040] The processor may be programmed to run executable instructions for electronically comparing the image captured by the sensor 102 with reference image data stored in memory 106. The reference set of attributes may include the digitized image of a hand, along with the physical attributes. By classifying the captured camera image with the reference image, processor 104 can determine the quantity of liquid to be dispensed to user's hand, and can prevent wastage of liquid by avoiding accidental activation.
[0041] For instance, person/user places his/her hands in front of the apparatus having biological microscope with a built-in camera. The sensor e.g., camera can capture the images of the hands, and the captured image can be processed for determining the size of hands and can classify the images according to the physical attributes of the hand of the user. The processor 104 can extract, from the classified set of attributes, a value for the hand of the subject. Based on the value for the hand, the red LED is activated, and the valve can be operated to dispense the large quantity of liquid for a definite time period and when the green LED is activated, the valve can be operated to dispense the small quantity of liquid for a definite time period.
[0042] The processor 104 may include the output unit 112 that may be electrically communicated to the motor 110. The processor 104 can send out an electrical signal that may be modulated to control the motor 110. The motor 110 may engage the valve 112 to dispense liquid. It follows that varying the output signal can directly change the amount of liquid dispensed. Thus, the invention of the present disclosure can supply specified quantity of sanitizer for a definite time period to be used efficiently.
[0043] Referring to FIG. 1B, the apparatus for dispensing liquid sanitizer can include a microscope with inbuilt camera 102 for capturing the images of hand when placed in the proximity of the apparatus. A processor 104 (also referred to as computing unit 104, herein) can be configured for processing the captured images, a motor 110 configured to open/ close the outlet valve 112 for pre-defined time period based on the processed image. Additionally, two LEDs 108 are configured to the apparatus100 and may include red LED or green LED. The LEDs 108 can receive signal from the processor 104 and can activate the red LED or green LED accordingly. When the liquid is empty, the refilling of the liquid can also be performed.
[0044] In an embodiment, the red LED 108 may indicate a greater number of germs on the hands, and the green LED 108 may indicate fewer germs on the hands. The processor 104 can receive captured images from the microscope 102 and can process the images by utilizing executable instruction e.g., Python library such as OpenCV, Keras, TensorFlow. The processor 104 can be configured to determine the hand size and can classify the hands into small or big hands. The output of the processor can activate the red LED for high number of germs and green LED for low number of germs. In an exemplary embodiment, the processor or the computing unit 104 can be Raspberry Pi. Although a Raspberry Pi processor has been described, it can readily be understood that any other suitable processor may be used which meets the requirements of the present disclosure.
[0045] In another embodiment, the processor 104 operatively coupled to the sensor 102 can extract a first set of attributes and a second set of attributes indicative of a physical attribute of the user, and can be operable coupled to the processor 104. The processor 104 can process the captured images and generate an output signal to operate the valve 112 and the light source 108 accordingly to automatically dispense the liquid onto the persons hands. The apparatus 100 is fully automatic and does not require any physical touch before sanitizing hands.
[0046] In an embodiment, the quantity of liquid dispensed may be determined based on the one or more physical attributes of the user. The physical attributes that may be used to adjust the output volume may include, for example, surface area of the user's hands, quantity of germs present in the hands, length of a user's hands, width of a user's hand, thickness of user's hand and any combination thereof. Apparatus has the ability to dispense different volumes of liquid to different user's based on the physical attribute of the user. Additionally, a germ detector can be provided in the apparatus to increase the prevention of germs.
[0047] In another embodiment, the same image can then be carried out for determining the numbers of germs present on the hands. Furthermore, numbers of germs on the hand can also be determined from the images and the imaged are categorized into low or high germs on hands. Based on the outcome received from the processor, red or green LEDs are actuated. The output signal of the processor 104 can also activate the motor 110 based on the four or more combinations.
[0048] In an exemplary embodiment, the four combinations may include low germs and small hands, low germs and big hands, high germs and small hands and high germs and big hands. The processor can transmit the signal to initiate the motor 110, which can operate the opening and closing of outlet valve 112 for pre-defined time period based on selected combination. The time for liquid dispatch for low germs and small hands may be 5 seconds, low germs and large hands may be 10 seconds, high germs and small hands may be 10 seconds and high germs and large hands may be 20 seconds.
[0049] For instance, once a person places his/her hands near the apparatus e.g., dispenser, it can automatically dispense the liquid e.g., disinfectant solution onto the persons hands based on selected combination. For example, when the determined valve indicates low germs and small hands, the green LED light can be activated and the valve can be operated to dispense the liquid for a few specified time periods e.g., five seconds. Similarly, when the determined valve indicates high germs and large hands, the red LED light can be activated and the valve can be operated to dispense the liquid for a few specified time periods e.g., twenty seconds. In this way, variable dosing may be obtained by adjusting the duration and/or signal configuration of the motor.
[0050] The apparatus 100 may further include a power source 114 to provide power supply to the apparatus. The power source 114 may include either individually or in combination of, any of the following: main power, solar or photoelectric power, disposable or rechargeable batteries, adaptor etc. Energy from the power source 114 can be used to provide operating power to the apparatus, e.g. to operate the motor, to activate the LEDs, and to enable operation of image capturing unit as well as other components of the apparatus.
[0051] Thus, the apparatus 100 can be configured to dispense hand care products e.g., soap, lotion or sanitizers etc. Other products, granular or liquid, may similarly be dispensed from the apparatus. It can be placed in any public interactive place like banks, shops, railways, hospitals, etc. the apparatus can be simple to install and can be cost-effective. The apparatus is user-friendly and helps the user to learn to sanitize his/her hands correctly.
[0052] FIG. 2 illustrates an exemplary flow diagram for a method 200 for operating the apparatus, in accordance with an embodiment of the present disclosure. At step 202, the image of a hand of a subject can be captured using microscope camera 102. At step 204, the captured image can be processed, by a computing device, for classification of hand size and quantity of germs present on the hand of the subject. At step 206, value of the hand of the subject can be determined to dispense the liquid in a specified time period.
[0053] In an exemplary embodiment, the determination of the hand can be performed by the one or more combinations that may include low germs and small hands, low germs and big hands, high germs and small hands and high germs and big hands. The processor 104 can transmit the signal to operate the motor 110, which can operate the opening and closing of outlet valve 112 for pre-defined time period based on selected combination. The time for liquid dispatch for low germs and small hands may be 5s, low germs and large hands may be 10s, high germs and small hands may be 10s and high germs and large hands may be 20s.
[0054] In an embodiment, at step 208, the motor 110 can be activated to open/close the valve 112 for specified time period and at step 210, liquid can be supplied through the outlet 112.The motor 110, upon receiving the activation signal, configured to operate the valve 112 to dispense the predetermined quantity of liquid.
[0055] FIG. 3 illustrates an exemplary flow diagram for a method for dispensing liquidsanitizer, in accordance with an embodiment of the present disclosure.
[0056] Referring to FIG. 3, the method 300 includes obtaining302, from a sensor 102 configured in a housing of the apparatus 100, one or more images of a hand of a subject, wherein, the housing can include a container adapted for storage of the liquid. The method can include receiving 304, at a computing device, the one or more images of the hand of the subject. The received one or more images can be analysed 306, at the computing device, to extract a first set of attributes from the one or more images, the first set of attributes pertaining to physical attributes of the hand of the subject.
[0057] In an embodiment, the physical attributes for one or more images of the hand may include any or a combination of surface area of the hands, length of hands, width of hand, and thickness hand. The received one or more images can be analysed 308, at the computing device, to extract a second set of attributes from the one or more images, the second set of attributes pertaining to contamination of the hand of the subject. The contamination of the hand for one or more images may include any or a combination of quantity of germs, types of germs present in the hand of the subject.
[0058] In another embodiment, the extracted set of attributes can be classified 310 based on matching of the extracted first set of attributes and the second set of attributes with a corresponding reference set of attributes, the classification pertaining one or more physical attributes of the hand of the subject and a corresponding contamination of the hand of the subject. The method further include extracting 312, at the computing device, from the classified set of attributes, a value for the hand of the subject, wherein, based on determination 314 of the value for the hand of the subject, the computing device can be configured to operate the valve 112 for a predetermined period of time to allow dispensation of a predetermined quantity of the liquid sanitizer.
[0059] The predetermined quantity determined as being required to decontaminate the hand of the subject. The valve 112 configured with the container, the valve operable by a motor 110 to allow passage of the liquid sanitizer from the container, wherein the computing device can be configured to operate the one or more light sources 108 to emit light indicating a current state of contamination of the hand of the user.
[0060] The computing device may include processor 104 that can be in communication with each of a memory, and input/output units.The processor may include a microprocessor or other devices capable of being programmed or configured to perform computations and instruction processing in accordance with the disclosure. In an exemplary embodiment, the processor may be Arduino processor. Such other devices may include microcontrollers, digital signal processors (DSP), complex programmable logic device (CPLD), field programmable gate arrays (FPGA), application-specific assimilated circuits (ASIC), discrete gate logic, and/or other assimilated circuits, hardware or firmware in lieu of or in addition to a microprocessor.
[0061] The memory can include programmable software instructions that are executed by the processor. The processor may be embodied as a single processor or a number of processors. The processor and a memory may each be, for example located entirely within a single computer or other computing device. The memory, which enables storage of data and programs, may include random-access memory (RAM), read-only memory (ROM), flash memory and any other form of readable and writable storage medium.
[0062] FIG. 4 illustrates an exemplary computer system in which or with which embodiments of the present invention can be utilized in accordance with embodiments of the present disclosure.
[0063] As shown in FIG. 4, computer system 400 includes an external storage device 410, a bus 420, a main memory 430, a read only memory 440, a mass storage device 450, communication port 460, and a processor 470. A person skilled in the art will appreciate that computer system may include more than one processor and communication ports. Examples of processor 470 include, but are not limited to, an Intel® Itanium® or Itanium 2 processor(s), or AMD® Opteron® or Athlon MP® processor(s), Motorola® lines of processors, FortiSOC™ system on a chip processors or other future processors. Processor 470 may include various units associated with embodiments of the present invention. Communication port 460 can be any of an RS-232 port for use with a modem-based dialup connection, a 10/100 Ethernet port, a Gigabit or 10 Gigabit port using copper or fibre, a serial port, a parallel port, or other existing or future ports. Communication port 460 may be chosen depending on a network, such a Local Area Network (LAN), Wide Area Network (WAN), or any network to which computer system connects.
[0064] Memory 430 can be Random Access Memory (RAM), or any other dynamic storage device commonly known in the art. Read only memory 440 can be any static storage device(s) e.g., but not limited to, a Programmable Read Only Memory (PROM) chips for storing static information e.g., start-up or BIOS instructions for processor 470. Mass storage 450 may be any current or future mass storage solution, which can be used to store information and/or instructions. Exemplary mass storage solutions include, but are not limited to, Parallel Advanced Technology Attachment (PATA) or Serial Advanced Technology Attachment (SATA) hard disk drives or solid-state drives (internal or external, e.g., having Universal Serial Bus (USB) and/or Firewire interfaces), e.g. those available from Seagate (e.g., the Seagate Barracuda 7200 family) or Hitachi (e.g., the Hitachi Deskstar 7K1000), one or more optical discs, Redundant Array of Independent Disks (RAID) storage, e.g. an array of disks (e.g., SATA arrays), available from various vendors including Dot Hill Systems Corp., LaCie, Nexsan Technologies, Inc. and Enhance Technology, Inc.
[0065] Bus 420 communicatively couples processor(s) 470 with the other memory, storage, and communication blocks. Bus 420 can be, e.g. a Peripheral Component Interconnect (PCI) / PCI Extended (PCI-X) bus, Small Computer System Interface (SCSI), USB or the like, for connecting expansion cards, drives and other subsystems as well as other buses, such a front side bus (FSB), which connects processor 470 to software system.
[0066] Optionally, operator and administrative interfaces, e.g. a display, keyboard, and a cursor control device, may also be coupled to bus 420 to support direct operator interaction with computer system. Other operator and administrative interfaces can be provided through network connections connected through communication port 460. External storage device 410 can be any kind of external hard-drives, floppy drives, IOMEGA® Zip Drives, Compact Disc - Read Only Memory (CD-ROM), Compact Disc - Re-Writable (CD-RW), Digital Video Disk - Read Only Memory (DVD-ROM). Components described above are meant only to exemplify various possibilities. In no way should the aforementioned exemplary computer system limit the scope of the present disclosure.

ADVANTAGES OF THE PRESENT DISCLOSURE
[0067] The present disclosure provides an apparatus that can dispense specified quantity of sanitizer by opening/closing the valve operable by the motor efficiently, based on the determined value of the hand of the user.
[0068] The present disclosure provides an apparatus can be automated and does not require any physical touch of the apparatus before sanitizing hands.
[0069] The present disclosure provides an apparatus that can provided an output signal to activate the LED as well as motor to open and close the valve for a definite time period to dispense the specified quantity of sanitizer effectively.
[0070] The present disclosure provides an apparatus with a sensor configured to capture the image of the hand of the user and can automatically detect and dispense the specified quantity of the liquid effectively.

[0071] The present disclosure provides an apparatus that can include a germ detector configured to prevent germs from the hand of the user.
[0072] The present disclosure provides an apparatus can be user-friendly and cost-effective.

Claims:1. An apparatus (100) for dispensing liquid sanitizer, the apparatus comprising:
a housing comprising a container adapted for storage of the liquid sanitizer;
a sensor (102) configured in the housing, the sensor configured to obtain one or more images of a hand of a subject;
a valve (112) configured with the container, the valve operable by a motor to allow passage of the liquid sanitizerfrom the container;
one or more light source (108) configured in the housing;
a processor (104) operatively coupled with the sensor, the motor and the light source, the processor operatively coupled to a memory, the memory storing instructions executable by the processor to:
receive, from the sensor (102), the one or more images of the hand of the subject;
analyse, the received one or more images to extract a first set of attributes from the one or more images, the first set of attributes pertaining to a plurality of physical attributes of the hand of the subject;
analyse, the received one or more images to extract a second set of attributes from the one or more images, the second set of attributes pertaining to a plurality of contamination of the hand of the subject;
classify, the extracted first set of attributes and second set of attributes based on matching of the extracted first set of attributes and second set of attributes with a corresponding reference set of attributes, the classification pertaining to a plurality of physical attributes of the hand of the subject and a corresponding contamination of the hand of the subject;
extract, from the classified set of attributes, a value for the hand of the subject,
wherein, based on determination of the value for the hand of the subject, the processor (104) is configured to operate the valve for a predetermined period of time to allow dispensation of a predetermined quantity of the liquid sanitizer, the predetermined quantity determined as being required to decontaminate the hand of the subject, and
wherein the processor (104) is configured to operate the one or more light sources(108) to emit light indicating a current state of contamination of the hand of the user.
2. The apparatus as claimed in claim 1, wherein the plurality of physical attributes comprises any or a combination of surface area of the hands, length of hands, width of hand, and thickness hand.
3. The apparatus as claimed in claim 1, wherein the plurality of contamination of the hand of the subject comprise any or a combination of quantity of germs, types of germs present in the hand of the subject.
4. The apparatus as claimed in claim 1, wherein the sensor (102) is a microscope camera.
5. The apparatus as claimed in claim 1, wherein the one or more light source (108), based on the determined value of the hand of the subject, can be configured to emit light with corresponding colour attributes.
6. The apparatus as claimed in claim 1, wherein the one or more light sources comprises a combination of light emitting diodes (LEDs).
7. The apparatus as claimed in claim 1, wherein a power source (114) is located in the housing to supply power to the apparatus.
8. The apparatus as claimed in claim 1, wherein based on the determined value of the hand of the subject, the valve is opened/closed to dispense the predetermined quantity of liquid.
9. The apparatus as claimed in claim 1, wherein a germ detector is configured in the housing to prevent germs.
10. A method (300) for dispensing liquid sanitizer, the method comprising:
obtaining (302), from a sensor (102) configured in a housing, one or more images of a hand of a subject, wherein, the housing comprising a container adapted for storage of the liquid sanitizer;
receiving (304), at a computing device, the one or more images of the hand of the subject;
analysing (306), at the computing device, the received one or more images to extract a first set of attributes from the one or more images, the first set of attributes pertaining to a plurality of physical attributes of the hand of the subject;
analysing (308), at the computing device, the received one or more images to extract a second set of attributes from the one or more images, the second set of attributes pertaining to a plurality of contamination of the hand of the subject;
classifying (310), at the computing device, the extracted first set of attributes and second set of attributes based on matching of the extracted first set of attributes and second set of attributes with a corresponding reference set of attributes, the classification pertaining to a plurality of physical attributes of the hand of the subject and a corresponding contamination of the hand of the subject;
extracting (312), at the computing device, from the classified set of attributes, a value for the hand of the subject;
wherein, based on determination (314) of a value for the hand of the subject, the computing device is configured to operate the valve for a predetermined period of time to allow dispensation of a predetermined quantity of the liquid sanitizer, the predetermined quantity determined as being required to decontaminate the hand of the subject, and
wherein the computing device is configured to operate one or more light sources(108) to emit light indicating a current state of contamination of the hand of the user,
wherein, the valve (112) configured with the container, the valve operable by a motor (110) to allow passage of the liquid sanitizerfrom the container, and wherein one or more light source (108) configured in the housing.