TECHNICAL FIELD
[0001] The present invention relates, in general, to hot/cold water supply systems,
more particularly, to an apparatus, method, and system of controlling flow and temperature of water in which the temperature of mixed water can be easily controlled, and desired temperature and flow of water is provided to user without wastage.
BACKGROUND
[0002] Generally, hot/cold water supply system are provided for washstands or other
water facilities installed in apartments, offices, hotels, houses, saunas, public toilets, etc., in which, when both a circulating water pump start switch and a flow control lever of a water heater installed around the entrance of a bathroom or in one side of a faucet are operated such that the switch terminals of the water heater can be turned on and actuate a circulating water pump of the water heater. A conventional hot/cold water supply system is configured such that cold water must be removed from a pipeline until hot water having a desired temperature controlled by manipulating the control lever of an integrated hot/cold water faucet upwards, downwards, leftwards and rightwards comes out of the faucet, thus consuming or wasting an excessive amount of water, and which can remarkably reduce energy efficiency required to circulate hot water.
[0003] Conventional hot/cold water supply systems are provided with mixers. The
mixers include Manual water Mixer having two separate valves for hot and cold water, and the user has to mix the water manually. Digital water mixer valve includes a digital display, which shows current temperature of mixed water. The user has to manually set the temperature over the display. Wireless water mixer uses RF Technology allowing users to set desired temperature from outside of their house. However, none of the conventional systems allows a user to receive water at desired temperature instantly, without wasting or removing exiting water present in the line or pipe.
[0004] There is therefore a need in the art to provide a solution for controlling flow
and temperature of water in which the temperature of mixed water can be easily controlled and desired temperature and flow of water is provided to user without wastage.

SUMMARY
[0005] The present invention relates, in general, to hot/cold water supply systems,
more particularly, to method and system of controlling flow and temperature of water in which the temperature of mixed water can be easily controlled, and desired temperature and flow of water is provided to user without wastage.
[0006] An aspect of the present disclosure relates to an apparatus (100) for controlling
flow and temperature of water includes a cold water line (106) coupled to a cold or ambient temperature water source (102); a hot water line (108) coupled to a hot water source 104; a cold water control unit (110) disposed on the cold water line (106); a hot water control unit (112) disposed on the hot water line (108); a master control unit (114) operatively coupled to the cold water line (106) and the hot water line (108); and a drain pipe (116) operatively coupled with the master control unit (114), wherein the cold water control unit 110 and the hot water control unit 112 are configured to monitor and control flow of water, and the master control unit (114) is configured to mix hot water received from the hot water line (108) with the cold water received from the cold water line (106), such that the temperature and flow of the resultant mixture is at a desired temperature (Td) and desired flow (Fd) set by a user.
[0007] In an aspect, the cold water control unit (110), the hot water control unit (112),
and the master control unit (114) are electronically smart valves with integrated stepper motor and temperature and flow sensors.
[0008] In an aspect, the temperature and flow sensors provide dynamic feedback
regarding the temperature (Th, Tc, Tm) and Flow (Fh, Fc, Fm) of the hot, the cold, and the mixed water.
[0009] In an aspect, the drain pipe (116) is provided with a diaphragm pump (118)
and a non-return valve (120), and wherein before the mixing of the water through the master control unit (114), the water already available in the cold water line (106) and the hot water line (108) comes out through the drain pipe (116), and wherein the water coming out from the drain pipe (116) flows back to the water source (102) by means of the diaphragm pump (118) and the non-return valve (120).
[00010] Another aspect of the present disclosure relates to a system (200) for
controlling flow and temperature of water. The system includes a memory (204); a microprocessor (202) coupled to the memory (204); an input unit (212); a cold control unit (214); a hot control unit (216); a master controller unit (218); and a notification unit (220), wherein the microprocessor (202) is configured to receive instructions, through the input unit

(212), from the user regarding the desired temperature (Td) and desired flow (Fd) of the water, operate, through the cold control unit (214) and the hot control unit (216) respectively, the cold water control unit (110) and the hot water control unit (112), govern, through the master controller unit (218), an operation of the master control unit (114), and notify, through the notification unit (220), by sending necessary notifications regarding temperature and flow of water to the user.
[00011] In an aspect, the cold control unit (214) and the hot control unit (216) receives
the feedback regarding temperature and flow of water in respective lines, and based upon the feedback the system (200) operates the cold water control unit (110) and the hot water control unit (112) to respectively adjust the flow of water based upon the desired temperature (Td) and desired flow (Fd).
[00012] In another aspect, the master controller unit (218) governs the operation of the
master control unit (114), firstly for draining out existing in line water through the drain pipe (116), and secondly mixing the hot and cold water to achieve mixed water at desired temperature (Td) and desired flow (Fd) based upon a comparison with the temperature (Tm) and flow (Fm) of the mixed water.
[00013] In an aspect, the system (200) is an Internet of Things (IoT) based system.
[00014] In another aspect, a method (300) for controlling flow and temperature of
water includes receiving instructions, through an input unit (212), from the user regarding the
desired temperature (Td) and desired flow (Fd) of the water, operating, through a cold control
unit (214) and the hot control unit (216) respectively, the cold water control unit (110) and
the hot water control unit (112), governing, through a master controller unit (218), an
operation of the master control unit (114), and notifying, through a notification unit (220), by
sending necessary notifications regarding temperature and flow of water to the user.
[00015] In an aspect, the cold control unit (214) and the hot control unit (216) receives
the feedback regarding temperature and flow of water in respective lines, and based upon the feedback the system (200) operates the cold water control unit (110) and the hot water control unit (112) to respectively adjust the flow of water based upon the desired temperature (Td) and desired flow (Fd), and wherein the master controller unit (218) governs the operation of the master control unit (114), firstly for draining out existing in line water through the drain pipe (116), and secondly mixing the hot and cold water to achieve mixed water at desired temperature (Td) and desired flow (Fd) based upon a comparison with the temperature (Tm) and flow (Fm) of the mixed water.

BRIEF DESCRIPTION OF THE DRAWINGS
[00016] In the figures, similar components and/or features may have the same
reference label. Further, various components of the same type may be distinguished by
following the reference label with a second label that distinguishes among the similar
components. If only the first reference label is used in the specification, the description is
applicable to any one of the similar components having the same first reference label
irrespective of the second reference label.
[00017] FIG. 1 illustrates an environment 90 where an apparatus 100 and a system 200
for controlling flow and temperature of water are implemented in accordance with an
embodiment of the present disclosure.
[00018] FIG. 2 illustrates the system 200 for controlling flow and temperature of water
in accordance with an embodiment of the present disclosure.
[00019] FIG. 3 illustrates a method 300 for controlling flow and temperature of water
in accordance with an embodiment of the present disclosure.
DETAILED DESCRIPTION
[00020] 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. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[00021] In the following description, numerous specific details are set forth in order to
provide a thorough understanding of embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details.
[00022] Embodiments of the present invention include various steps, which will be
described below. The steps may be performed by hardware components or may be embodied in machine-executable instructions, which may be used to cause a general-purpose or special-purpose processor programmed with the instructions to perform the steps. Alternatively, steps may be performed by a combination of hardware, software, and firmware and/or by human operators.
[00023] Various methods described herein may be practiced by combining one or more
machine-readable storage media containing the code according to the present invention with

appropriate standard computer hardware to execute the code contained therein. An apparatus
for practicing various embodiments of the present invention may involve one or more
computers (or one or more processors within a single computer) and storage systems
containing or having network access to computer program(s) coded in accordance with
various methods described herein, and the method steps of the invention could be
accomplished by modules, routines, subroutines, or subparts of a computer program product.
[00024] 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.
[00025] 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.
[00026] Exemplary embodiments will now be described more fully hereinafter with
reference to the accompanying drawings, in which exemplary embodiments are shown. These exemplary embodiments are provided only for illustrative purposes and so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those of ordinary skill in the art. The invention disclosed may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Various modifications will be readily apparent to persons skilled in the art. The general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the invention. Moreover, all statements herein reciting embodiments of the invention, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure). Also, the terminology and phraseology used is for the purpose of describing exemplary embodiments and should not be considered limiting. Thus, the present invention is to be accorded the widest scope encompassing numerous alternatives, modifications and equivalents consistent with the principles and features disclosed. For purpose of clarity, details relating to technical material that is known in the technical fields related to the invention have not been described in detail so as not to unnecessarily obscure the present invention.

[00027] Thus, for example, it will be appreciated by those of ordinary skill in the art
that the diagrams, schematics, illustrations, and the like represent conceptual views or processes illustrating systems and methods embodying this invention. The functions of the various elements shown in the figures may be provided through the use of dedicated hardware as well as hardware capable of executing associated software. Similarly, any switches shown in the figures are conceptual only. Their function may be carried out through the operation of program logic, through dedicated logic, through the interaction of program control and dedicated logic, or even manually, the particular technique being selectable by the entity implementing this invention. Those of ordinary skill in the art further understand that the exemplary hardware, software, processes, methods, and/or operating systems described herein are for illustrative purposes and, thus, are not intended to be limited to any particular named element.
[00028] Embodiments of the present invention may be provided as a computer program
product, which may include a machine-readable storage medium tangibly embodying thereon instructions, which may be used to program a computer (or other electronic devices) to perform a process. The term "machine-readable storage medium" or "computer-readable storage medium" includes, but is not limited to, fixed (hard) drives, magnetic tape, floppy diskettes, optical disks, compact disc read-only memories (CD-ROMs), and magneto-optical disks, semiconductor memories, such as ROMs, PROMs, random access memories (RAMs), programmable read-only memories (PROMs), erasable PROMs (EPROMs), electrically erasable PROMs (EEPROMs), flash memory, magnetic or optical cards, or other type of media/machine-readable medium suitable for storing electronic instructions (e.g., computer programming code, such as software or firmware).A machine-readable medium may include a non-transitory medium in which data may be stored and that does not include carrier waves and/or transitory electronic signals propagating wirelessly or over wired connections. Examples of a non-transitory medium may include, but are not limited to, a magnetic disk or tape, optical storage media such as compact disk (CD) or digital versatile disk (DVD), flash memory, memory or memory devices. A computer-program product may include code and/or machine-executable instructions that may represent a procedure, a function, a subprogram, a program, a routine, a subroutine, a module, a software package, a class, or any combination of instructions, data structures, or program statements. A code segment may be coupled to another code segment or a hardware circuit by passing and/or receiving information, data, arguments, parameters, or memory contents. Information, arguments, parameters, data, etc.

may be passed, forwarded, or transmitted via any suitable means including memory sharing,
message passing, token passing, network transmission, etc.
[00029] Furthermore, embodiments may be implemented by hardware, software,
firmware, middleware, microcode, hardware description languages, or any combination
thereof. When implemented in software, firmware, middleware or microcode, the program
code or code segments to perform the necessary tasks (e.g., a computer-program product)
may be stored in a machine-readable medium. A processor(s) may perform the necessary
tasks.
[00030] Systems depicted in some of the figures may be provided in various
configurations. In some embodiments, the systems may be configured as a distributed system
where one or more components of the system are distributed across one or more networks in
a cloud computing system.
[00031] Each of the appended claims defines a separate invention, which for
infringement purposes is recognized as including equivalents to the various elements or
limitations specified in the claims. Depending on the context, all references below to the
"invention" may in some cases refer to certain specific embodiments only. In other cases it
will be recognized that references to the "invention" will refer to subject matter recited in one
or more, but not necessarily all, of the claims.
[00032] All methods described herein may be performed in any suitable order unless
otherwise indicated herein or otherwise clearly contradicted by context. The use of any and
all examples, or exemplary language (e.g., "such as") provided with respect to certain
embodiments herein is intended merely to better illuminate the invention and does not pose a
limitation on the scope of the invention otherwise claimed. No language in the specification
should be construed as indicating any non-claimed element essential to the practice of the
invention.
[00033] Various terms as used herein are shown below. To the extent a term used in a
claim is not defined below, it should be given the broadest definition persons in the pertinent
art have given that term as reflected in printed publications and issued patents at the time of
filing.
[00034] The present invention relates, in general, to hot/cold water supply systems,
more particularly, to method and system of controlling flow and temperature of water in
which the temperature of mixed water can be easily controlled without wastage.
[00035] An aspect of the present disclosure relates to an apparatus (100) for controlling
flow and temperature of water includes a cold water line (106) coupled to a cold or ambient

temperature water source (102); a hot water line (108) coupled to a hot water source 104; a cold water control unit (110) disposed on the cold water line (106); a hot water control unit (112) disposed on the hot water line (108); a master control unit (114) operatively coupled to the cold water line (106) and the hot water line (108); and a drain pipe (116) operatively coupled with the master control unit (114), wherein the cold water control unit 110 and the hot water control unit 112 are configured to monitor and control flow of water, and the master control unit (114) is configured to mix hot water received from the hot water line (108) with the cold water received from the cold water line (106), such that the temperature and flow of the resultant mixture is at a desired temperature (Td) and desired flow (Fd) set by a user.
[00036] In an aspect, the cold water control unit (110), the hot water control unit (112),
and the master control unit (114) are electronically smart valves with integrated stepper motor and temperature and flow sensors.
[00037] In an aspect, the temperature and flow sensors provide dynamic feedback
regarding the temperature (Th, Tc, Tm) and Flow (Fh, Fc, Fm) of the hot, the cold, and the mixed water.
[00038] In an aspect, the drain pipe (116) is provided with a diaphragm pump (118)
and a non-return valve (120), and wherein before the mixing of the water through the master control unit (114), the water already available in the cold water line (106) and the hot water line (108) comes out through the drain pipe (116), and wherein the water coming out from the drain pipe (116) flows back to the water source (102) by means of the diaphragm pump (118) and the non-return valve (120).
[00039] Another aspect of the present disclosure relates to a system (200) for
controlling flow and temperature of water. The system includes a memory (204); a microprocessor (202) coupled to the memory (204); an input unit (212); a cold control unit (214); a hot control unit (216); a master controller unit (218); and a notification unit (220), wherein the microprocessor (202) is configured to receive instructions, through the input unit (212), from the user regarding the desired temperature (Td) and desired flow (Fd) of the water, operate, through the cold control unit (214) and the hot control unit (216) respectively, the cold water control unit (110) and the hot water control unit (112), govern, through the master controller unit (218), an operation of the master control unit (114), and notify, through the notification unit (220), by sending necessary notifications regarding temperature and flow of water to the user.

[00040] In an aspect, the cold control unit (214) and the hot control unit (216) receives
the feedback regarding temperature and flow of water in respective lines, and based upon the feedback the system (200) operates the cold water control unit (110) and the hot water control unit (112) to respectively adjust the flow of water based upon the desired temperature (Td) and desired flow (Fd).
[00041] In another aspect, the master controller unit (218) governs the operation of the
master control unit (114), firstly for draining out existing in line water through the drain pipe (116), and secondly mixing the hot and cold water to achieve mixed water at desired temperature (Td) and desired flow (Fd) based upon a comparison with the temperature (Tm) and flow (Fm) of the mixed water.
[00042] In an aspect, the system (200) is an Internet of Things (IoT) based system.
[00043] In another aspect, a method (300) for controlling flow and temperature of
water includes receiving instructions, through an input unit (212), from the user regarding the
desired temperature (Td) and desired flow (Fd) of the water, operating, through a cold control
unit (214) and the hot control unit (216) respectively, the cold water control unit (110) and
the hot water control unit (112), governing, through a master controller unit (218), an
operation of the master control unit (114), and notifying, through a notification unit (220), by
sending necessary notifications regarding temperature and flow of water to the user.
[00044] In an aspect, the cold control unit (214) and the hot control unit (216) receives
the feedback regarding temperature and flow of water in respective lines, and based upon the feedback the system (200) operates the cold water control unit (110) and the hot water control unit (112) to respectively adjust the flow of water based upon the desired temperature (Td) and desired flow (Fd), and wherein the master controller unit (218) governs the operation of the master control unit (114), firstly for draining out existing in line water through the drain pipe (116), and secondly mixing the hot and cold water to achieve mixed water at desired temperature (Td) and desired flow (Fd) based upon a comparison with the temperature (Tm) and flow (Fm) of the mixed water.
[00045] FIG. 1 illustrates an environment 90 where an apparatus 100 and a system 200
for controlling flow and temperature of water are implemented in accordance with an embodiment of the present disclosure. In an embodiment, a user may operate or interact with the system 200 for operating the apparatus 100.
[00046] In an embodiment, the environment 90 includes a cold or ambient temperature
water source 102, and a hot water source 104. In an example, the environment 90 may correspond to a bathroom, a kitchen, a household, an industrial application, or the like. The

cold or ambient temperature water source 102 may be a general overhead or underground water tank, and the hot water source 104 may be a geyser or a boiler or a solar water heater. In an example, the user may wish to take bath, wash clothes, wash utensils and would desire a temperature and flow of water. The user would accordingly provide instructions to the system 200 regarding the temperature and flow of water. In an embodiment, the system 200 may be operable through multiple modes. For example, the system 200 may be operational in manual mode wherein the user has option to set the desired temperature and desired volumetric flow rate. In another example, the system 200 may be operational in automatic mode wherein there is no need to set the value of desired temperature and desired flow rate manually. In this example, the users may have to select their name or profile pre-stored with the system 200, and temperature and volumetric flow rate would be automatically set from the saved profile option.
[00047] In an embodiment, the apparatus 100 includes a cold water line 106 coupled to
the cold or ambient temperature water source 102, and a hot water line 108 coupled to the hot water source 104. The apparatus 100 further includes a cold water control unit 110 disposed on the cold water line 106, and a hot water control unit 112 disposed on the hot water line 108. In an embodiment, the cold water control unit 110 and the hot water control unit 112 are electronically smart valves with integrated stepper motor and temperature and flow sensors. The cold water control unit 110 and the hot water control unit 112 are configured to monitor and control flow of water based upon received instructions or based upon Artificial Intelligence (AI).
[00048] In an embodiment, the apparatus 100 further includes a master control unit 114
operatively coupled to the cold water line 106 and the hot water line 108. In an embodiment, the master control unit 114 is configured to mix hot water received from the hot water line 108 with the cold water received from the cold water line 106, such that the temperature and flow of the resultant mixture is at a desired temperature (Td) and desired flow (Fd) set by the user. In an example, the master control unit 114 is an electronically smart valve with integrated stepper motor and temperature and flow sensors. The temperature and flow sensors of the master control unit 114 provide dynamic feedback to the system 200 regarding the temperature (Tm) and Flow (Fm) of the mixed water. The operation of mixing continues till the mixed water values (Tm, Fm) become comparable with the user desired water values (Td, Fd). In an embodiment, the apparatus 100 further includes drain pipe 116 operatively coupled with the master control unit 114. In an embodiment, the drain pipe 116 is provided with a diaphragm pump 118 and a non-return valve 120. The drain pipe 116 is coupled with the cold

or ambient temperature water source 102. The apparatus 100 further includes a tap 122 for
receiving the mixed water at desired temperature (Td) and desired flow (Fd).
[00049] In an embodiment, the user sets desired temperature (Td) and desired flow
(Fd) of water, or selects a pre-defined profile associated with the user, within the limits, on
the system 200. Further, the system 200 instructs and controls the apparatus 100 for providing
the water at desired temperature (Td) and desired flow (Fd). The system 200 upon receiving
instructions from the user directs the cold water control unit 110 and the hot water control
unit 112 to monitor temperature and flow of water in cold water line 106 and the hot water
line 108. Accordingly in an embodiment, the cold water control unit 110 and the hot water
control unit 112 monitor current flow (Fc, Fh) and temperature (Tc, Th) of cold water and hot
water respectively. The cold water control unit 110 and the hot water control unit 112 further
provides the monitored flow (Fc, Fh) and temperature (Tc, Th) values to the system 200.
Based upon the feedback received, the system 200 takes appropriate decision and controls
temperature and flow of water in cold water line 106 and the hot water line 108 by effectively
controlling the cold water control unit 110 and the hot water control unit 112.
[00050] In an embodiment, the system 200 is to be calibrated at least once for
operating the apparatus 100 and effectively achieve the desired temperature (Td) and desired flow (Fd) by mixing of cold water (Fc, Tc) and hot water (Fh, Th). For effective calibration, the system 200 evaluates upper and lower limits associated with the desired temperature (Td) and desired flow (Fd). In an example, the upper and lower limits are based upon the following description.
[00051] The following two equations decide the volumetric flow rate and Temperature
of each of the cold water control unit 110 and the hot water control unit 112:
Fd = Fh + Fc;
Td = (Fh*Th + Fc*Tc)/(Fh + Fc )
[00052] Calculation of upper and lower limits of the Desired Temperature ( Td ) and
Desired Flow (Fd ) are based upon the following description:
As, Fd = Fh + Fc
So, Fd (min) = Fh (min) + Fc (min)
If both of the cold water control unit 110 and the hot water control unit 112 are
closed, Fh (min) = Fc (min) = 0
Condition for Fd (min): Minimum possible value of volumetric flow rate will be zero
when both Fh and Fc will be zero.
Hence Fd (min) = 0

And, Condition for Fd (max): Fd (max) = Fh (max) + Fc (max)
As we have, Tc = Fixed from cold water source.
Condition for Td (min): When Tc is min and no hot water is mixed with cold Water.
So, Td (min) = Tc
Condition for Td (max): When Th is max and no Cold water is mixed with hot Water.
Td (max) = Th (max), Th (max) will depend upon maximum temperature of hot
water source.
[00053] Further in an embodiment, the system 200 controls the master control unit 114
for effectively mixing the hot water and cold water received through the controlled action of the cold water control unit 110 and the hot water control unit 112 to achieve the desired temperature (Td) and desired flow (Fd) of water required by the user, based upon comparison with values of the mixed water (Tm, Fm). In an embodiment, before the mixing of the water through the master control unit 114, the water already available in the cold water line 106 and the hot water line 108 comes out through the drain pipe 116. In an embodiment, the water coming out from the drain pipe 116 flows back to the water source 102 through a special mechanism.
[00054] In an embodiment, through the special mechanism the water coming out from
the drain pipe 116 is lifted up by means of the diaphragm pump 118 to the cold water line 106, and thus the water flows back to the water source 102. A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve, butterfly valves, flap valves, or any other form of shut-off valves) to pump a fluid. As mentioned earlier, the apparatus 100 also includes NRV (Non Returning Valve) 120 installed at the output of the diaphragm pump 118. The NRV 120 does not let the water flows back to the drain pipe 116. A non-return valve allows a medium to flow in only one direction. A non-return valve is fitted to ensure that a medium flows through a pipe in the right direction, where pressure conditions may otherwise cause reversed flow. In an embodiment, by using the apparatus 100 through the system 200, the drain pipe 116 facilitates the user to utilize the water at desired temperature only, as the existing water in the line is taken up by the drain pipe 116, and is sent back to the water source 102 for reutilization. This helps in reduction in wastage of water, as in conventional solutions or systems the water already present in line was to be taken out before the desired temperature water starts flowing.

[00055] FIG. 2 illustrates the system 200 for controlling flow and temperature of water
in accordance with an embodiment of the present disclosure. As mentioned earlier, the user provides the input of desired water temperature (Td) and flow (Fd), or selects a pre-defined profile, through the system 200. In an embodiment, the system 200 may be implemented as a computing device, for example, a computer, a laptop, a smart phone, etc., and the user may provide the inputs through touch screen or through voice command.
[00056] In an aspect, the system 200 may comprise one or more hardware processor(s)
202. The one or more hardware processor(s) 202 may be implemented as one or more microprocessors, microcomputers, microcontrollers, digital signal processors, central processing units, logic circuitries, and/or any devices that manipulate data based on operational instructions. Among other capabilities, the one or more hardware processor(s) 202 are configured to fetch and execute computer-readable instructions stored in a memory 204 of the system 200. The memory 204 may store one or more computer-readable instructions or routines, which may be fetched and executed to create or share the data units over a network service. The memory 204 may comprise any non-transitory storage device including, for example, volatile memory such as RAM, or non-volatile memory such as EPROM, flash memory, and the like.
[00057] The system 200 also includes an interface(s) 206. The interface(s) 206 may
comprise a variety of interfaces, for example, interfaces for data input and output devices,
referred to as I/O devices, storage devices, and the like. The interface(s) 206 may facilitate
communication of the system 200 with various devices coupled to the system 200 such as the
apparatus 100. In an embodiment, the system 200 may be communicably coupled to the
apparatus 100 over a network. In an example, the network may be any wired or wireless
network known to a person having ordinary skill in the art. The interface(s) 206 may also
provide a communication pathway for one or more components of system 200. Examples of
such components include, but are not limited to, processing engine(s) 208 and data 210.
[00058] The processing engine(s) 208 may be implemented as a combination of
hardware and programming (for example, programmable instructions) to implement one or more functionalities of the processing engine(s) 208. In examples described herein, such combinations of hardware and programming may be implemented in several different ways. For example, the programming for the processing engine(s) 208 may be processor executable instructions stored on a non-transitory machine-readable storage medium and the hardware for the processing engine(s) 208 may comprise a processing resource (for example, one or more processors), to execute such instructions. In the present examples, the machine-readable

storage medium may store instructions that, when executed by the processing resource, implement the processing engine(s) 208. In such examples, the system 200 may comprise the machine-readable storage medium storing the instructions and the processing resource to execute the instructions, or the machine-readable storage medium may be separate but accessible to system 200 and the processing resource. In other examples, the processing engine(s) 208 may be implemented by electronic circuitry.
[00059] The data 210 may comprise data that is either stored or generated as a result of
functionalities implemented by any of the components of the processing engine(s) 208.
[00060] In an exemplary embodiment, the processing engine(s) 208 may comprise an
input unit 212, a cold control unit 214, a hot control unit 216, a master controller unit 218, and a notification unit 220.
[00061] It would be appreciated that units being described are only exemplary units
and any other unit or sub-unit may be included as part of the system 200. These units too may
be merged or divided into super-units or sub-units as may be configured.
[00062] Functionalities of various units as mentioned above will now be described in
detail in the following description in accordance with an embodiment of the present disclosure. In an embodiment, the various units mentioned above enables the system 200 for monitoring and controlling a temperature and flow of water in accordance with an embodiment of the present disclosure.
[00063] In an embodiment, the input unit 212 is configured to receive instructions from
the user regarding the desired temperature (Td) and desired flow (Fd) of the water. Based upon the received instructions, the cold control unit 214 and the hot control unit 216 respectively govern the operation of the cold water control unit 110 and the hot water control unit 112. Further, the cold control unit 214 and the hot control unit 216 receives the feedback regarding temperature and flow of water in respective lines, and based upon the feedback the system 200 operates the cold water control unit 110 and the hot water control unit 112 to respectively adjust the flow of water based upon the desired temperature (Td) and desired flow (Fd). Further, the master controller unit 218 governs the operation of the master control unit 114, firstly for draining out existing in line water through the drain pipe 116, and secondly mixing the hot and cold water to achieve mixed water at desired temperature (Td) and desired flow (Fd) based upon a comparison with the temperature (Tm) and flow (Fm) of the mixed water. In an embodiment, the notification unit 220 is configured to send necessary notifications regarding temperature and flow of water to the user.

[00064] Although the proposed system 200 has been elaborated as above to include all
the main parts, it is completely possible that actual implementations may include only a part
of the proposed modules/engines/units or a combination of those or a division of those in
various combinations across multiple devices that can be operatively coupled with each other,
including in the cloud. Further the modules/engines/units can be configured in any sequence
to achieve objectives elaborated. Also, it can be appreciated that proposed system 200 can be
configured in a computing device or across a plurality of computing devices operatively
connected with each other, wherein the computing devices can be any of a computer, a
laptop, a smart phone, an Internet enabled mobile device and the like. All such modifications
and embodiments are completely within the scope of the present disclosure.
[00065] In an implementation, the proposed system 200, discussed above, can be
embedded with/incorporated with one or more Internet of Things (IoT) devices. In a typical network architecture of the present disclosure can include a plurality of network devices such as transmitter, receivers, and/or transceivers that may include one or more IoT devices. An IOT device consisting of a Gateway (any Wi-Fi SOC) coupled with the landslide detection device 100, the plurality of sensors 204, and the server 202. Each such device has a LED display and QR code (or NFC, RFID) associated with it.
[00066] As used herein, the IoT devices can be a device that includes sensing and/or
control functionality as well as a WiFi™ transceiver radio or interface, a Bluetooth™ transceiver radio or interface, a Zigbee™ transceiver radio or interface, an Ultra-Wideband (UWB) transceiver radio or interface, a Wi-Fi-Direct transceiver radio or interface, a Bluetooth™ Low Energy (BLE) transceiver radio or interface, and/or any other wireless network transceiver radio or interface that allows the IoT device to communicate with a wide area network and with one or more other devices. In some embodiments, an IoT device does not include a cellular network transceiver radio or interface, and thus may not be configured to directly communicate with a cellular network. In some embodiments, an IoT device may include a cellular transceiver radio, and may be configured to communicate with a cellular network using the cellular network transceiver radio.
[00067] A user may communicate with the network devices using an access device that
may include any human-to-machine interface with network connection capability that allows access to a network. For example, the access device may include a stand-alone interface (e.g., a cellular telephone, a smartphone, a home computer, a laptop computer, a tablet, a personal digital assistant (PDA), a computing device, a wearable device such as a smart watch, a wall panel, a keypad, or the like), an interface that is built into an appliance or other device e.g., a

television, a refrigerator, a security system, a game console, a browser, or the like), a speech or gesture interface (e.g., a Kinect™ sensor, a Wiimote™, or the like), an IoT device interface (e.g., an Internet enabled device such as a wall switch, a control interface, or other suitable interface), or the like. In some embodiments, the access device may include a cellular or other broadband network transceiver radio or interface, and may be configured to communicate with a cellular or other broadband network using the cellular or broadband network transceiver radio. In some embodiments, the access device may not include a cellular network transceiver radio or interface.
[00068] User may interact with the network devices using an application, a web
browser, a proprietary program, or any other program executed and operated by the access device. In some embodiments, the access device may communicate directly with the network devices (e.g., communication signal). For example, the access device may communicate directly with network devices using Zigbee™ signals, Bluetooth™ signals, WiFi™ signals, infrared (IR) signals, UWB signals, WiFi-Direct signals, BLE signals, sound frequency signals, or the like. In some embodiments, the access device may communicate with the network devices via the gateways and/or a cloud network.
[00069] Local area network may include a wireless network, a wired network, or a
combination of a wired and wireless network. A wireless network may include any wireless interface or combination of wireless interfaces (e.g., Zigbee™, Bluetooth™, WiFi™, IR, UWB, WiFi-Direct, BLE, cellular, Long-Term Evolution (LTE), WiMax™, or the like). A wired network may include any wired interface (e.g., fiber, Ethernet, powerline, Ethernet over coaxial cable, digital signal line (DSL), or the like). The wired and/or wireless networks may be implemented using various routers, access points, bridges, gateways, or the like, to connect devices in the local area network. For example, the local area network may include gateway and gateway. Gateway can provide communication capabilities to network devices and/or access device via radio signals in order to provide communication, location, and/or other services to the devices. The gateway is directly connected to the external network and may provide other gateways and devices in the local area network with access to the external network. The gateway may be designated as a primary gateway.
[00070] The network access provided by gateway may be of any type of network
familiar to those skilled in the art that can support data communications using any of a variety of commercially-available protocols. For example, gateways may provide wireless communication capabilities for the local area network 100 using particular communications protocols, such as WiFi™ (e.g., IEEE 802.11 family standards, or other wireless

communication technologies, or any combination thereof). Using the communications
protocol(s), the gateways may provide radio frequencies on which wireless enabled devices
in the local area network can communicate. A gateway may also be referred to as a base
station, an access point, Node B, Evolved Node B (eNodeB), access point base station, a
Femtocell, home base station, home Node B, home eNodeB, or the like.
[00071] Gateways may include a router, a modem, a range extending device, and/or
any other device that provides network access among one or more computing devices and/or external networks. For example, gateway may include a router or access point or a range extending device. Examples of range extending devices may include a wireless range extender, a wireless repeater, or the like.
[00072] A router gateway may include access point and router functionality, and may
further include an Ethernet switch and/or a modem. For example, a router gateway may receive and forward data packets among different networks. When a data packet is received, the router gateway may read identification information (e.g., a media access control (MAC) address) in the packet to determine the intended destination for the packet. The router gateway may then access information in a routing table or routing policy, and may direct the packet to the next network or device in the transmission path of the packet. The data packet may be forwarded from one gateway to another through the computer networks until the packet is received at the intended destination.
[00073] As in a typical network architecture of the present disclosure can include a
plurality of network devices such as transmitter, receivers, and/or transceivers that may
include one or more Internet of Things (IOT) devices. As used herein, an IOT devices can be
a device that includes sensing and/or control functionality as well as a Wi-Fi transceiver
radio or interface, a Bluetooth transceiver radio or interface, a Zigbee transceiver radio or
interface, an Ultra-Wideband (UWB) transceiver radio or interface, a Wi-Fi Direct
transceiver radio or interface, a Bluetooth Low Energy (BLE) transceiver radio or interface,
and/or any other wireless network transceiver radio or interface that allows the IOT device to
communicate with a wide area network and with one or more other devices. In some
embodiments, an IOT device may include a cellular transceiver radio, and may be configured
to communicate with a cellular network using the cellular network transceiver radio.
[00074] FIG. 3 illustrates a method 300 for controlling flow and temperature of water
in accordance with an embodiment of the present disclosure.
[00075] In an aspect, the proposed method may be described in general context of
computer executable instructions. Generally, computer executable instructions can include

routines, programs, objects, components, data structures, procedures, modules, functions,
etc., that perform particular functions or implement particular abstract data types. The method
can also be practiced in a distributed computing environment where functions are performed
by remote processing devices that are linked through a communications network. In a
distributed computing environment, computer executable instructions may be located in both
local and remote computer storage media, including memory storage devices.
[00076] The order in which the method as described is not intended to be construed as
a limitation, and any number of the described method blocks may be combined in any order to implement the method or alternate methods. Additionally, individual blocks may be deleted from the method without departing from the spirit and scope of the subject matter described herein. Furthermore, the method may be implemented in any suitable hardware, software, firmware, or combination thereof. However, for ease of explanation, in the embodiments described below, the method may be considered to be implemented in the above described system.
[00077] In an embodiment, at step 302 the method 300 includes receiving instructions,
through the input unit 212, from the user regarding the desired temperature (Td) and desired flow (Fd) of the water. At step 304 the method 300 includes operating, through the cold control unit 214 and the hot control unit 216 respectively, the cold water control unit 110 and the hot water control unit 112. Further, the cold control unit 214 and the hot control unit 216 receives the feedback regarding temperature and flow of water in respective lines, and based upon the feedback the system 200 operates the cold water control unit 110 and the hot water control unit 112 to respectively adjust the flow of water based upon the desired temperature (Td) and desired flow (Fd). At step 306 the method 300 includes governing, through the master controller unit 218, an operation of the master control unit 114, firstly for draining out existing in line water through the drain pipe 116, and secondly mixing the hot and cold water to achieve mixed water at desired temperature (Td) and desired flow (Fd) based upon a comparison with the temperature (Tm) and flow (Fm) of the mixed water. At step 308 the method 300 includes notifying, through the notification unit 220, by sending necessary notifications regarding temperature and flow of water to the user.
[00078] Embodiments of the present disclosure may be implemented entirely
hardware, entirely software (including firmware, resident software, micro-code, etc.) or combining software and hardware implementation that may all generally be referred to herein as a "circuit," "module," "component," or "system." Furthermore, aspects of the present

disclosure may take the form of a computer program product comprising one or more
computer readable media having computer readable program code embodied thereon.
[00079] Thus, it will be appreciated by those of ordinary skill in the art that the
diagrams, schematics, illustrations, and the like represent conceptual views or processes illustrating systems and methods embodying this invention. The functions of the various elements shown in the figures may be provided through the use of dedicated hardware as well as hardware capable of executing associated software. Similarly, any switches shown in the figures are conceptual only. Their function may be carried out through the operation of program logic, through dedicated logic, through the interaction of program control and dedicated logic, or even manually, the particular technique being selectable by the entity implementing this invention. Those of ordinary skill in the art further understand that the exemplary hardware, software, processes, methods, and/or operating systems described herein are for illustrative purposes and, thus, are not intended to be limited to any particular named.
[00080] As used herein, and unless the context dictates otherwise, the term "coupled
to" is intended to include both direct coupling (in which two elements that are coupled to each other contact each other) and indirect coupling (in which at least one additional element is located between the two elements). Therefore, the terms "coupled to" and "coupled with" are used synonymously. Within the context of this document terms "coupled to" and "coupled with" are also used euphemistically to mean "communicatively coupled with" over a network, where two or more devices are able to exchange data with each other over the network, possibly via one or more intermediary device.
[00081] It should be apparent to those skilled in the art that many more modifications
besides those already described are possible without departing from the inventive concepts herein. The inventive subject matter, therefore, is not to be restricted except in the spirit of the appended claims. Moreover, in interpreting both the specification and the claims, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms "comprises" and "comprising" should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refers to at least one of something selected from the group consisting of A, B, C .... and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc.

[00082] While the foregoing describes various embodiments of the invention, other and
further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable people having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.
ADVANTAGES OF THE PRESENT DISCLOSURE
[00083] The present disclosure provides an apparatus, method, and system of
controlling flow and temperature of water in which the temperature of mixed water can be
easily controlled and desired temperature and flow of water is provided to user without
wastage.
[00084] The present disclosure allows a user to set the flow of mixed water at desired
flow along with desired temperature.
[00085] The present disclosure provides concept of drain pipe that allows user to
obtain water at desired temperature only and it prevents wastage of water too as Water
coming out from drain pipe has lifted up by means of diaphragm pump to the water pipe line
itself and thus it flows back to water tank.
[00086] The present disclosure provides an option to control the apparatus or the
system remotely (From anywhere of the world) as this system communicates over the Wi-Fi
to Mobile application and Web application. The System may also operate through voice
command.
[00087] The present disclosure provides mixed water at desired temperature and flow
instantly, without wastage of the already present in line water.

We Claim:
1.An apparatus (100) for controlling flow and temperature of water, the apparatus (100)
comprising:
a cold water line (106) coupled to a cold or ambient temperature water source (102);
a hot water line (108) coupled to a hot water source 104;
a cold water control unit (110) disposed on the cold water line (106);
a hot water control unit (112) disposed on the hot water line (108);
a master control unit (114) operatively coupled to the cold water line (106) and the
hot water line (108); and
a drain pipe (116) operatively coupled with the master control unit (114), wherein the
cold water control unit (110) and the hot water control unit (112) are configured to
monitor and control flow of water, and the master control unit (114) is configured to
mix hot water received from the hot water line (108) with the cold water received
from the cold water line (106), such that the temperature and flow of the resultant
mixture is at a desired temperature (Td) and desired flow (Fd) set by a user.
2.The apparatus (100) as claimed in claim 1, wherein the cold water control unit (110), the hot water control unit (112), and the master control unit (114) are electronically smart valves with integrated stepper motor and temperature and flow sensors.
3.The apparatus (100) as claimed in claim 2, wherein the temperature and flow sensors provide dynamic feedback regarding the temperature (Th, Tc, Tm) and Flow (Fh, Fc, Fm) of the hot, the cold, and the mixed water.
4.The apparatus (100) as claimed in claim 1, wherein the drain pipe (116) is provided with a diaphragm pump (118) and a non-return valve (120), and wherein before the mixing of the water through the master control unit (114), the water already available in the cold water line (106) and the hot water line (108) comes out through the drain pipe (116), and wherein the water coming out from the drain pipe (116) flows back to the water source (102) by means of the diaphragm pump (118) and the non-return valve (120).
5.A system (200) for controlling flow and temperature of water, the system (200) comprising:
a memory (204);
a microprocessor (202) coupled to the memory (204);
an input unit (212);
a cold control unit (214);

a hot control unit (216);
a master controller unit (218); and
a notification unit (220), wherein the microprocessor (202) is configured to:
receive instructions, through the input unit (212), from the user regarding the desired temperature (Td) and desired flow (Fd) of the water,
operate, through the cold control unit (214) and the hot control unit (216) respectively, the cold water control unit (110) and the hot water control unit (112),
govern, through the master controller unit (218), an operation of the master control unit (114), and
notify, through the notification unit (220), by sending necessary notifications regarding temperature and flow of water to the user.
6.The system (200) as claimed in claim 5, wherein the cold control unit (214) and the hot control unit (216) receives the feedback regarding temperature and flow of water in respective lines, and based upon the feedback the system (200) operates the cold water control unit (110) and the hot water control unit (112) to respectively adjust the flow of water based upon the desired temperature (Td) and desired flow (Fd).
7.The system (200) as claimed in claim 5, wherein the master controller unit (218) governs the operation of the master control unit (114), firstly for draining out existing in line water through the drain pipe (116), and secondly mixing the hot and cold water to achieve mixed water at desired temperature (Td) and desired flow (Fd) based upon a comparison with the temperature (Tm) and flow (Fm) of the mixed water.
8.The system (200) as claimed in claim 5 is an Internet of Things (IoT) based system.
9.A method (300) for controlling flow and temperature of water, the method (300) comprising:
receiving instructions, through an input unit (212), from the user regarding the desired temperature (Td) and desired flow (Fd) of the water,
operating, through a cold control unit (214) and the hot control unit (216) respectively, the cold water control unit (110) and the hot water control unit (112),
governing, through a master controller unit (218), an operation of the master control unit (114), and
notifying, through a notification unit (220), by sending necessary notifications regarding temperature and flow of water to the user.
10.The method (300) as claimed in claim 5, wherein the cold control unit (214) and the hot
control unit (216) receives the feedback regarding temperature and flow of water in

respective lines, and based upon the feedback the system (200) operates the cold water control unit (110) and the hot water control unit (112) to respectively adjust the flow of water based upon the desired temperature (Td) and desired flow (Fd), and wherein the master controller unit (218) governs the operation of the master control unit (114), firstly for draining out existing in line water through the drain pipe (116), and secondly mixing the hot and cold water to achieve mixed water at desired temperature (Td) and desired flow (Fd) based upon a comparison with the temperature (Tm) and flow (Fm) of the mixed water.