DESC:FIELD OF THE INVENTION:
The present invention relates to supply of water for multi floor high rise buildings and building clusters. In particular, the present invention is directed to develop a hybrid water supply system by way of advancement involving gravity based and up-feed water supply techniques. The hybrid water supply system of the present invention advantageously includes Artificial Intelligence based control system in the water supply procedure and operates without involving any human intervention. The present invention also reduces electricity consumption due to water pumping by at least 15% and supply uniform adequate pressure and flow rates to all floors of a high rise buildings or building clusters.

BACKGROUND ART:
Water supply systems are broadly classified into Gravity fed system and Up-Feed water supply system. In gravity fed system, water is pumped to the overhead tank of a building and from there water is supplied to the respective floors of the building based on gravity action. It makes use of simple technology and less sensitive for power cuts, but disadvantages of gravity fed system are water is being pumped to a greater height than water consumption point height, insufficient pressure on the uppermost floors, and excessive pressure on the lowest floors. All of these may result in water wastage, improper functioning of showers, etc.
Hydro-Pneumatic Pressure Booster Systems are the most popular Up-Feed water supply system. In Pneumatic Pressure Booster System, water is pressurized to pump water to the respective floors on the building based on the demand of the users, variable speed pumps are used to meet the variable demand of the building. Pressure booster system has advantages such as always on, adequate pressure and flow rate but this system have disadvantages like high installation and maintenance costs, pumps are turned on and off very frequently (every 2 seconds) that results in higher energy costs due to high start-up current of pumps (typically around 6 times more than stable continuous operation).
Recently some alternate water supply systems have been developed to address the disadvantages of the existing gravity fed water supply system and the Up-Feed water supply systems. E.g.
JP 2001-295327 entitled “Water supply system for high-rise building” relates to plurality of water supply tanks arranged in each floor vertically across the building which are connected in a series manner by pipes which contains water supply pump, check valve. So water to the each floor is being supplied from respective water tanks. It avoids necessity of pumping all the water to overhead tank, when there is decrease in level of water in the tank the pump supplying water to the respective will be switched on, damper having an air chamber is arranged in each of the water supply tank, to avoid fluctuations and frequent turning on/ off of the water supply pump.
It is important to note that, the water supply system of JP 2001­295327, is focused to avoid pressure fluctuation at the output not on the efficiency of the system. In the water supply system of JP 2001­295327, separate tank is used on each floor, which not only increase the cost but it also take considerable amount of space. Additionally, separate motor is required for each tank which leads to very high initial cost. Also, the operation of the system will not be an efficient since the pump will be turned on/off frequently which leads to higher initial current and hence higher operating cost.
CN 102182229 entitled “Special automatic water supply system for high-rise building with pneumatic control and frequency conversion” relates to use of buffer tank and automatic pump control depending on the pressure in the buffer tank for pumping of water to the floors of a high-rise building. Water pump taking water from tap water tube and outlet connected to the buffer tank, water is pumped to the buffer tank to pressurize water to the required pressure capable of supplying water to the floors, buffer tank containing the air, air also gets pressurized when water is being pumped to the buffer tank. Pressure sensor which measures the pressure of air in buffer tank, depending on the air pressure in buffer tank pump is turned on/off. Water in buffer tank is kept balanced, so water is supplied stably and without assistance of any person to operate the pump.
In CN 102182229, the Buffer tank is essentially made with metals (steels) of high thickness to sustain high pressures and also should be leak proof, which results in high initial cost, and consumes lot of space in the basement of the building. Also, in the present system, even though lower floors require low pressure to pump water, they are being supplied with high pressure. So the pump will always work against high pressure, which would result in inefficient water supplying operation.
CN 102108723 B entitled “Water supply system for building” discloses an overhead tank-less water supply system for a building, which comprises at least two water storage tanks, wherein the water storage tanks are arranged in the ground floor of the building or underground; the bottom of each water storage tank is provided with a water inlet and a water outlet; the water inlet is communicated with a water inlet pipe through a water inlet check valve; the water outlet is communicated with a water outlet pipe through a water outlet check valve; the water inlet pipe of each water storage tank is connected with a tap water inlet header pipe; the water outlet pipe of each water storage tank is connected with a water outlet header pipe; a water pressure boosting device is arranged in each water storage tank; and water in the water storage tanks is supplied to the water outlet header pipe together or alternately with the help of water pressure booster system. During the operation of the system of CN 102108723 B, first, a tank is filled with water by means of inlet pipe. Then water in the tank is pressurized, much more than the minimum pressure required for supplying the water at top most floor of a building, by pressure booster (which is driven by hydraulic motor or cylinder drive). Because of water consumption, pressure in the tank falls down and when pressure drops below some specified minimum pressure then again tank is pressurized by similar as mentioned above.
The water supply system of CN 102108723 B requires very special type of tank; wherein inside of surface of tank is made of metal (steel) because of smooth movement of piston and outer surface of the tank is made of concrete to sustain very high pressure. Also the system of CN 102108723 B requires frequent maintenance operation due to the involvement of reciprocating type pump and piston.
Thus, there has been a need for developing a new water supplying system with low initial setup cost which will operate in an efficient manner and uniformly supply water to all floors of a high rise buildings or building clusters with reduced electricity consumption for the pumping water.

OBJECT OF THE INVENTION:
It is thus the basic object of the present invention is to develop a water supply system for high rise buildings and building clusters which would be adapted to combine gravity based and up-feed based water supply techniques in order to reduce electricity consumption due to water pumping and supply uniform adequate pressure and flow rates to all floors of a high rise buildings or building clusters.
Another object of the present invention is to develop a water supply system for high rise buildings and building clusters which would be adapted to involve AI based intelligent control to optimize supply of the water to the each floors of the buildings or the building clusters by selectively utilizing up-feed based water supply and/or gravity fed water supply as per water consumption pattern and historical water consumption data.
Yet another object of the present invention is to develop a water supply system for high rise buildings and building clusters which would be adapted to ensure uniform and adequate pressure and flow rate of the water for all the floors of the buildings with reduced water supply piping network.

SUMMARY OF THE INVENTION:
Thus according to the basic aspect of the present invention there is provided a smart hybrid water/fluid supply system comprising

at least one overhead tank disposed on raised platform on top of a structure;

at least one underground tank having operating connection with water/fluid source to fill said underground tank;

at least one water/fluid supply pipeline operatively connected to said overhead tank and said underground tank for supplying water/fluid to multiple delivery points disposed at different heights below the structure from said overhead tank by involving gravity feed water/fluid supply technique and from said underground tank by involving up feed water/fluid supply technique;

a control unit for controlling feeding of the water/fluid into said water/fluid supply network from the overhead tank and the underground tank based on consumption of the water/fluid in the delivery points for higher operational efficiency and energy savings in supplying the water/fluid.

According to another aspect there is provided a smart hybrid water/fluid supply system for supplying water to multi floor high rise buildings or building clusters comprising

said overhead tanks disposed on top of the buildings;

said underground tank having operating connection with the water source to fill the underground tank;

said water/fluid supply pipeline(s) configured to acts as both as delivery line to different floors as well as supply line to building’s overhead tank; and

said control unit for optimizing supply of the water to the each floors of the buildings or the building clusters directly through up feed water supply technique from the underground tank and/or through the gravity fed water supply technique from the overhead tanks as per water consumption pattern ensuring uniform and adequate pressure and flow rate of the water for all the floors of the buildings;

According to yet another aspect in the present smart hybrid water/fluid supply system, the water/fluid supply pipeline(s) comprises

a bottom end connected to the underground tank through a conduit and pump means; and

a top end connected bottom of the overhead tank operating as water/fluid inlet and outlet for the overhead tank.

According to a further aspect in the present smart hybrid water/fluid supply system, the conduit is connected to the underground tank outlet and the pump means inlet.

According to a further aspect in the present smart hybrid water/fluid supply system, the pump means outlet includes a first flow sensor and a subsequent check valve installed at the connection of the pump means outlet and the water/fluid supply pipeline(s);

said first flow sensor measures water/fluid flow rate from the pump means outlet and transmits the information to the control unit; and

said check valve prevents water/fluid flowing back into the pump means when it is turned off;

According to a further aspect in the present smart hybrid water/fluid supply system, the water/fluid supply pipeline(s) top end includes a second flow sensor installed at the connection of the water/fluid supply pipeline(s) top end with the bottom of the overhead tank operating;

said second flow sensor measures the water/fluid flow rate going into or coming out of the overhead tank and transmits the information to the control unit.

According to yet another aspect in the present smart hybrid water/fluid supply system, the overhead tank includes

either pressure sensor or single calibrated water level sensor installed to the overhead tank to get accurate reading of water level in overhead tank and transmits the information to the control unit for determining height of the overhead tank;

According to another aspect in the present smart hybrid water/fluid supply system, the pump means comprises at least one centrifugal pump for supplying water/fluid to the overhead tank directly from the underground via the water/fluid supply pipeline(s) and to the delivery points at lower heights or lower floors of the buildings via the same water/fluid supply pipeline(s), whereby the overhead tank supply the water/fluid to the delivery points at higher heights or upper floors of the buildings by involving the gravity fed water supply through the same water supply pipeline.

According to another aspect in the present smart hybrid water/fluid supply system, the control unit comprises
a first processing unit to receives the information from the sensors and optionally sends the data to a second processing unit;
said second processing unit to receive the sensors data from the first processing unit to store it in the onboard memory thereby computing water/fluid consumption rate based on the measured flow rate and compare the same with a threshold flow rate as calculated by the second processing unit based on the historical water/fluid usage data, whereby said second processing unit when water consumption rate increases more than the threshold flow rate then activates the pump means and when consumption rate falls below the threshold value deactivates the pump means.

According to another aspect in the present smart hybrid water/fluid supply system, the threshold flow rate is determined from the history of usage data by including peak usage times.

According to a further aspect in the present smart hybrid water/fluid supply system, the water/fluid supply pipeline(s) comprises pressure reducing valves and flow control valves for each floor to facilitate uniform and adequate pressure and flow rate of the water for all the floors of the buildings.

According to yet another aspect in the present smart hybrid water/fluid supply system, the control unit comprises user interface having display unit and soft keys panel to allow user or technician to interact with the control unit.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
Figure 1 shows water consumption pattern for a typical commercial building.
Figure 2 shows schematic representation of a preferred embodiment of present smart hybrid water supply system.
Figure 3 shows schematic representation of a preferred embodiment of AI based control means of the present smart hybrid water supply system.
Figure 4 shows outline of water supply pipeline of a flat of a building in accordance with the present invention.
Figure 5 shows layout of water supply pipeline of a 10 Floor building having 4 flats in each floor in accordance with the present invention.

DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE ACCOMPANYING DRAWINGS:
Due to urbanization, population density of the cities is increasing rapidly and high-rise buildings are the current solution for supporting such increasing population density. Most of the operating and maintenance cost of high-rise buildings come from electricity consumption of water pumps and lifts. In countries like India and other developing nations many high-rise buildings still use gravity fed water supply system, which is not highly efficient. A proper water distribution system is very essential for high-rise buildings in order to enhance delivering efficiency, reduce power consumption, optimize water distribution, and to lower running or operating costs. Water pumps consume major part of the electricity of a residential complex, so the common electricity bill can be greatly reduced by having a proper water distribution system. Often times the water pumps are still being operated manually. Here the present invention propose a smart hybrid water supply system for high-rise buildings or building clusters which is efficient than gravity fed system and can provide uniform and adequate pressure and flow rate for all the floors of the buildings. The system involves Artificial Intelligence based control to make the water supply system fully automated. Apart from predicting the usage pattern and optimizing flow rates of the system also can indicate failure and system critical status.

A typical water consumption pattern for a commercial building for one day is shown in the accompanying figure 1. The water consumption data was taken from a case study of a tall office building whose complete day consumption was about 3 lakh liters. The water consumption pattern is typical of most commercial as well as domestic high rise building where the consumption is high in the mornings and evenings with mornings being much higher.
It is observed from the graph that about 60% of a day’s consumption was just consumed in 5 ½ hours (peak consumption time). Also in a gravity fed system water is pumped to a height much more than its consumption height. If the motor is turned on during its peak consumption time and water directly supplied to the various floors instead of pumping to a height more than its consumption height. The system overall efficiency will increase. Also the piping is reduced by using single pipeline instead of the traditional two pipeline system, which acts as both delivery line and pump supply line.
Reference is now invited from the accompanying figure 2 which shows schematic representation of a preferred embodiment of present smart hybrid water supply system. The present hybrid water supply system combines gravity fed water supply system and up-feed based water supply system in a single system embodiment. The Hybrid system combines advantages of both the systems by pumping most of the water directly to delivery lines of corresponding floors without being pumped to overhead tank.
Figure 2 shows, a high rise building 40 water-supply system, comprising of a at least one main water supply line 10, two tanks 1 and 26, motor pump 2, flow sensor 3, 24 and 42, check valve 4, Pressure Reducing Valve (PRV) 8, Flow Control Valve (FCV) 6, and control system unit 16. Tank 1 is typically an underground 11 and overhead tank 26 is set on the roof or on raised platform on the top of building 40. Pipeline 36 is connected to inlet of tank 1 which is used to fill the tank 1. Conduit 35 is connected to outlet of tank 1 and inlet of motor pump 2. Main water supply pipeline 10 has two ends (top end and bottom end). Bottom end is connected to outlet of the motor pump 2 and top end is connected to bottom of the overhead tank 26. Top end of pipeline 10 is working as both inlet and outlet of the overhead tank 26. Flow sensor 3 is installed to the output of motor pump 2. Pressure sensor 46 is installed between the flow sensor 3 and motor pump 2 and transmits the information to the control system unit 16, via wire 47 or it may also sent through wireless mechanism. Check valve 4 is installed soon after the flow sensor 3 at the output of the pump 2 in main water supply pipeline 10. It prevents the back flow from the overhead to the underground tank when pump is turned off. Flow sensor 3 measures the flow rate from the output of pump 2, and transmits the information to the control system unit 16, via wire 21 or it may also sent through wireless mechanism. Flow sensor 24 is installed between pipe connected to the bottom of the overhead tank 26 and main water supply pipeline 10. It measures the water flow rate going into or coming out of the overhead tank 26 transmits the information to the control system unit 16, via wire 22 or it may also sent through wireless mechanism. Pressure sensor 25 or any water level measuring sensor can be installed to overhead tank 26. It measures the water level in the overhead tank 26 and transmits the information to the control system unit 16, via wire 23 or it may also sent through wireless mechanism. Height in the overhead tank can be obtained from the pressure sensor 25 installed to the overhead tank 26 or any other water level measuring sensor that can be installed to the overhead tank 26.
Flow sensors 42 are installed at every flat in order to monitor the water consumption profile of every flat. Flow sensors 42 transmits the information through wire 44 or any through wireless mechanism to control system unit 16.
Conduit 7 has two ends (inlet and outlet). Inlet end is connected to the main water supply pipeline 10 by T joint 9 and outlet end is connected to a flat supply pipeline 38 using socket 5, where faucet 37 or plurality of similar faucets are connected to flat supply line 38. PRV 8 is installed to conduit 7. It provides specified constant pressure at the outlet of PRV 8 provided pressure at the inlet should be greater than specified constant pressure at the output of PRV 8. FCV 6 installed to conduit 7. It can provide maximum specified flow rate at the output of FCV 6.
The principal novelty of present Hybrid water supply system is recited in the use of single pipeline that acts as both as delivery line to users as well as supply line to building’s overhead tank in a gravity fed system with conventional centrifugal pumps. The unique method of intelligently and efficiently supplying water directly from the underground or above ground storage via pump to lower floors and through the overhead tank to the upper floors in high demand period is the prime factor in reducing energy usage in the present system. It also includes use of Pressure Reducing Valves (PRV) and Flow Control Valves (FCV) (FCV may be avoided based on the requirement) at each floor which results in supply of uniform adequate pressure and flow rate to almost all the floors except top most floor.
The Hybrid system of the present advancement advantageously includes intelligent AI based control means that turns on and off the pump based on expected peak consumption period leading to higher operational efficiency and energy savings. The AI based intelligent control means optimizes the water fed to floor supply lines directly through the pump and through the gravity fed system based on water consumption. The use of data logging and constantly adjusting control system by the AI based intelligent control means ensures robust & optimal performance in spite of changes in usage patterns. The user friendly system allows the user to interact with the control system to study, monitor, modify usage & settings, and download and/or upload data into the control system.
In the present system, typical peak consumption timings are first identified based on which the pump is turned on to maximize direct delivery. Initially the overall water consumption data is logged and monitored in the AI based control means for a few days from which peak usage times are identified, based on the motor specifications. Based on the total peak consumption time the threshold flow rate is determined from the history of usage data. Pump is turned on or off depending on the threshold value and water consumption rate. The water flow sensors at the outlet of pump and inlet of overhead tank log the water consumption data. Single calibrated water level sensor is used to get accurate reading of water level in overhead tank, once the water consumption rate decreases less than the threshold flow rate, then pump is turned off. Check valve is used to prevent the water flowing back into water pump when it was turned off. Pressure Reducing Valves (PRV) and Flow Control Valves (FCV) are used to control the excess flow rates and pressure. So even a single pipe line will be able to handle the both the functions of water supply to overhead tank and delivery to the floors. Because of limiting excess pressure and flow rate water wastage is reduced. Additional flow sensors are installed at every floor in case if it is required to monitor consumption profile of every flat.
The accompanying figure 3 shows schematic representation of a preferred embodiment of the present AI based control means. Control system unit 16 comprises of two separate micro controllers 27 and 32 the first processing unit passes the data received from sensors to the second processing unit for comparing current water consumption rate and threshold flow rate and also for saving the data for further usage, data storage 30, display unit 19, display unit 20, power button 41 and relay switch circuit 39. Control system unit 16 is powered by power source 18, via wire 17. Processing chip 27 takes input signals from flow sensor 3, flow sensor 24, flow sensor 42 and pressure sensor 25 and sends this information to processing chip 32. Processing chip 32 performs four tasks. 1st task: to receive the signal which are being sent by processing unit 27 and store these information into onboard memory 30 .2nd task: To process and interpret the signals which comes from chip 27, based on Artificial Intelligence algorithm, water pump 2 is turned on/off using relay switch circuit 39 where this signal gets amplified and power the motor pump 2. 3rd task: at the end of each cycle, it process the past water consumption data which is stored in the data storage memory 30 and calculates the threshold flow rate. Next day when water consumption rate increases than this threshold value and if it was stable then motor pump will be turned-on and when consumption rate is decreases below the threshold value then motor pump will be turned-off. 4th task: Processing chip 32 will display (a) graph of consumed water versus time on display unit 19 (b) current water consumption rate, total units of power consumed by pump, voltage, current and etc. on display unit 20.
The Control system unit 16 further comprises of soft keys panel 44 which would allow user or technician to interact with the controller. A generic connectivity port (USB, Ethernet, Thunderbolt etc.) 43 that will allow usage data and statistics to be downloaded off the system or also upload any data to the system.

Features or operational aspects of the present AI based control means includes:
i. Intermittently turning the Pump on/off based on the water consumption rate and setting duration of pumping based on water demand and historical data of the water demand.
ii. Detection of abnormal usage including: Drift in usage pattern, More time of usage of water under threshold value, Very less usage, Abnormal peak usage for considerable amount of time, Sudden and intense demand.
iii. Indicating power cuts during pumping, pumping failure and system critical status through visual and audible alarm, SMS.
iv. Logging usage pattern, demand analysis and monitoring, and allowing user to interact with controller and to monitor water consumption profile of every flat (if required).
Analysis for a typical building:
Water supply system of Type C Quarters at IIT Bhubaneswar, Argul were considered for Analysis. From the Analysis, minimum adequate pressure and flow rates were found out. These pressure and flow rates were used to set them to PRV and FCV respectively.
Pipe network considered for analysis:
Typical 10 floors building each floor having four flats is considered for analysis
Test case analysis results:
Assumptions made in test case 1,
• 150 liter/person/day
• 750 liter/flat/day
• 35,500 liter/day total water consumption in 10 floor building of 40 flats

In Traditional Method In proposed
Method Savings
Energy consumed
Per day (kJ) 58964.07 52368.63 11.18%
Electricity Unit/day
(kWh) 16.37 14.54 1.83

Assumptions made in test case 2,
• 150 liter/person/day
• 750 liter/flat/day
• 67,340 liter/day total water
consumption in 10 floor building of 80 flats

In Traditional Method In proposed
Method Savings
Energy consumed
Per day (kJ) 74726.52 64476.82 13.72%
Electricity Unit/day
(kWh) 20.76 17.91 2.85
,CLAIMS:WE CLAIM:
1. A smart hybrid water/fluid supply system comprising

at least one overhead tank disposed on raised platform on top of a structure;

at least one underground tank having operating connection with water/fluid source to fill said underground tank;

at least one water/fluid supply pipeline operatively connected to said overhead tank and said underground tank for supplying water/fluid to multiple delivery points disposed at different heights below the structure from said overhead tank by involving gravity feed water/fluid supply technique and from said underground tank by involving up feed water/fluid supply technique;

a control unit for controlling feeding of the water/fluid into said water/fluid supply network from the overhead tank and the underground tank based on consumption of the water/fluid in the delivery points for higher operational efficiency and energy savings in supplying the water/fluid.

2. The smart hybrid water/fluid supply system as claimed in claim 1, for supplying water to multi floor high rise buildings or building clusters comprising

said overhead tanks disposed on top of the buildings;

said underground tank having operating connection with the water source to fill the underground tank;

said water/fluid supply pipeline(s) configured to acts as both as delivery line to different floors as well as supply line to building’s overhead tank; and

said control unit for optimizing supply of the water to the each floors of the buildings or the building clusters directly through up feed water supply technique from the underground tank and/or through the gravity fed water supply technique from the overhead tanks as per water consumption pattern ensuring uniform and adequate pressure and flow rate of the water for all the floors of the buildings;

3. The smart hybrid water/fluid supply system as claimed in claim 1 or 2, wherein the water/fluid supply pipeline(s) comprises

a bottom end connected to the underground tank through a conduit and pump means; and

a top end connected bottom of the overhead tank operating as water/fluid inlet and outlet for the overhead tank.

4. The smart hybrid water/fluid supply system as claimed in anyone of the claims 1 to 3, wherein the conduit is connected to the underground tank outlet and the pump means inlet.

5. The smart hybrid water/fluid supply system as claimed in anyone of the claims 1 to 4, wherein the pump means outlet includes a first flow sensor and a subsequent check valve installed at the connection of the pump means outlet and the water/fluid supply pipeline(s);

said first flow sensor measures water/fluid flow rate from the pump means outlet and transmits the information to the control unit; and

said check valve prevents water/fluid flowing back into the pump means when it is turned off;

6. The smart hybrid water/fluid supply system as claimed in anyone of the claims 1 to 5, wherein the water/fluid supply pipeline(s) top end includes a second flow sensor installed at the connection of the water/fluid supply pipeline(s) top end with the bottom of the overhead tank operating;

said second flow sensor measures the water/fluid flow rate going into or coming out of the overhead tank and transmits the information to the control unit.

7. The smart hybrid water/fluid supply system as claimed in anyone of the claims 1 to 6, wherein the overhead tank includes

single calibrated water level sensor to get accurate reading of water level in overhead tank and transmits the information to the control unit for determining height of the overhead tank;

8. The smart hybrid water/fluid supply system as claimed in anyone of the claims 1 to 7, wherein the pump means comprises at least one centrifugal pump for supplying water/fluid to the overhead tank directly from the underground via the water/fluid supply pipeline(s) and to the delivery points at lower heights or lower floors of the buildings via the same water/fluid supply pipeline(s), whereby the overhead tank supply the water/fluid to the delivery points at higher heights or upper floors of the buildings by involving the gravity fed water supply through the same water supply pipeline(s).

9. The smart hybrid water/fluid supply system as claimed in anyone of the claims 1 to 8, wherein the control unit comprises
a first processing unit to receives the information from the sensors and optionally sends the data to a second processing unit;
said second processing unit to receive the sensors data from the first processing unit to store it in the onboard memory thereby computing water/fluid consumption rate based on the measured flow rate and compare the same with a threshold flow rate as calculated by the second processing unit based on the historical water/fluid usage data, whereby said second processing unit when water consumption rate increases more than the threshold flow rate then activates the pump means and when consumption rate falls below the threshold value deactivates the pump means.

10. The smart hybrid water/fluid supply system as claimed in anyone of the claims 1 to 9, wherein the threshold flow rate is determined from the history of usage data by including peak usage times.

11. The smart hybrid water/fluid supply system as claimed in anyone of the claims 1 to 10, wherein the water/fluid supply pipeline(s) comprises pressure reducing valves and flow control valves for each floor to facilitate uniform and adequate pressure and flow rate of the water for all the floors of the buildings.

12. The smart hybrid water/fluid supply system as claimed in anyone of the claims 1 to 11, wherein the control unit comprises user interface having display unit and soft keys panel to allow user or technician to interact with the control unit.

Dated this 22nd day of May, 2017 Anjan Sen
Anjan Sen & Associates
(Applicants Agent)
IN/PA-199