Water Supply System

Abstract

The present disclosure provides a water supply system comprising a central water supply (2), a plurality of water taps (3), at least one operating device (4) located at one of the water taps, a piping system (5) connecting the central water supply to the plurality of water taps, the piping system including an individual flow path from the central water supply to each of the water taps, and a controller (6) for individually controlling the water flow from the central water supply to the plurality of water taps and individually controlling the outlet temperature of the water flow at the outlet of the central water supply. The controller is located in the central water supply and can be operated via an operating device located at the faucet of the water tap.

Description

[Technical field]

[0001] FIELD OF THE DISCLOSURE The present disclosure relates to water supply systems and methods for controlling water supply systems, and more particularly, to systems and methods for controlling water flow and controlling temperature within the systems. [Background technology]

[0002] Traditionally, water supply systems consist of hot water pipes, cold water supply pipes, and circulation pipes, and require users to not wait too long for water of an acceptable temperature at their individual taps. Summary of the Invention [Problem to be solved by the invention]

[0003] It is an object of embodiments of the present disclosure to provide an improved water supply system.

[0004] It is a further object of embodiments of the present disclosure to provide an improved method of controlling a water supply system.

[0005] According to a first aspect, the present disclosure provides a water supply system including: - a central water supply; -Multiple faucets and - at least one operating device arranged on one tap; - a piping system connecting a central water supply with a number of taps, the piping system having a separate flow path from the central water supply to each tap; - a controller for individually controlling water flow from a central water supply to a plurality of water taps and individually controlling an outlet temperature of the water flow at an outlet of the central water supply, the controller being disposed in the central water supply, the controller being operable at the water taps via the at least one operating device.

[0006] By providing a controller at the central water supply and operable via the operating device of the tap, a non-pressurized water supply system is provided. The advantage of such a non-pressurized water supply system is that in the event of a leak in the piping system, only the amount of water contained in the piping from the central water supply to the tap will flow into the building.

[0007] The water supply system may be a domestic water supply system for the supply of domestic water in domestic buildings such as domestic houses and apartments, a water supply system for the supply of water in offices, industry, agriculture, healthcare such as hospitals, or any other place where water is used. The water supply system may further supply water for heating in domestic buildings, offices, industry, agriculture, healthcare such as hospitals, or any other place where heating is required.

[0008] The central water supply may be a water tank for storing water in the building in which the water supply system is located, or it may be a manifold, a water inlet to a building, a common water storage for supplying water to several buildings, etc. The term "central water supply" means that the water tank / manifold / inlet can supply water to several taps in a building or several taps in several buildings.

[0009] The system includes a plurality of water taps, which may provide a user with access to water for drinking, bathing, cocking, washing, etc. In the context of the present invention, the term "water tap" encompasses conventional water taps in kitchens, bathrooms, one or more water taps, outdoor faucets, as well as showers, bathtubs, jacuzzis, or other rooms having bathtub faucets. Furthermore, the term "water tap" also encompasses toilets, bidets, washing machines, dishwashers, etc. Thus, a "water tap" may be any element within or outside a building that may draw water for drinking, bathing, cocking, cleaning, washing, flushing, etc.

[0010] In an alternative embodiment, the water supply system may also be used to supply water for heating, in which case the faucet may instead cover a similar heater, radiator, underfloor heater, etc. Therefore, in the following, the term "faucet" also covers "heater".

[0011] An operation device is located at at least one faucet and allows a user to utilize the faucet. "Operation" means, for example, starting and stopping the water flow from a central water supply. The controller is located at the central water supply and the operation devices are two separate devices located at the faucets. A water supply system can include multiple operation devices. Each of these operation devices can operate the controller to control the water flow to each faucet. In one embodiment, an operation device is located at each faucet. However, in alternative embodiments, two or more faucets can share an operation device. As an example, a shower and a washbasin located in the same room can each include a faucet that can be operated by a single operation device.

[0012] The operating device may be configured to generate an electric demand signal, and the controller may be configured to receive the electric demand signal and to control the water flow and outlet temperature in response to the demand signal. The electric demand signal may be communicated from the operating device to the controller via wireless communication. In an alternative embodiment, the communication may be wired communication.

[0013] A piping system connecting a central water supply to a plurality of water taps. The piping system forms a flow path for water from the central water supply to a plurality of water taps, where the piping system comprises a separate flow path from the central water supply to each water tap. The piping system may be formed by a single pipe extending from the central water supply to the water taps. In one embodiment, the piping system may comprise a plurality of pipes.

[0014] The piping system may be formed from polypropylene, different types of polyethylene, metal, or another suitable material.

[0015] Typically the pipes are circular in cross section, however it will be appreciated that other cross sections are also applicable, such as oval, square, triangular or any other cross section.

[0016] The diameter of the pipes of a piping system having a circular cross section may range from 5 to 100 mm, or even more. It is understood that the diameter of the pipe to one tap may be different from the diameter of the pipe to another tap. Furthermore, it should be understood that the diameter of the piping system may be different. In a domestic building, for example, the inner diameter of the pipes for supplying water to a tap in a kitchen or bathroom is typically about 8 mm, and the outer diameter is about 12 mm. It is understood that pipes with other diameters are also applicable. The size of the pipes may depend, by way of example, on the distance to the tap, the amount of water to be used, the maximum flow demand required, etc.

[0017] The water supply system further comprises a controller that controls the flow of water from the central water supply to the plurality of water taps. In a simple embodiment, the controller is adjustable between a fully open and a fully closed configuration, thereby providing either a maximum flow rate (100% flow rate) or a zero flow rate. In an alternative embodiment, the controller is adjustable between a plurality of configurations that allow a plurality of different flow rates between the maximum flow rate (100% flow rate) and a zero flow rate.

[0018] The controller is located in the central water supply, whereby the flow is regulated in the central water supply. The controller is operable via an operating device at the tap of the faucet, whereby the user can operate the controller from the location of the tap. The communication between the controller and the operating device may be wireless, for example by using WIFI. The operating device may be, by way of example, mounted on a wall, on a basin, on a cupboard or on another element in the area of ​​the tap. In one embodiment, the operating device may be of a size and shape that allows it to be integrated into a fixed device for a conventional wall socket. The operating device may therefore be in a fixed location. In an alternative embodiment, the operating device may be a portable device.

[0019] In one embodiment, the control device may be a mobile phone or another similar mobile device. In a particular embodiment, the mobile phone may constitute the control device, and operation of the controller may be performed using an App on the mobile phone. In an alternative embodiment, the control device may be operated via a mobile phone or similar device.

[0020] To facilitate regulation of the water flow from the central water supply, the controller may include at least one flow regulator, such as a valve for controlling the water flow, and thus the controller may include at least one of a valve, a motor, a PCB, and other elements for controlling the flow rate and communicating with an operating device.

[0021] The controller includes a separate flow regulator for each faucet, thereby allowing the water flow to be controlled individually for each faucet.

[0022] The controller is further configured to control an outlet temperature of the water stream at an outlet of the central water feed. In one embodiment, the outlet temperature of the water stream can be controlled by mixing hot and cold water in the central water feed, such as in a water mixing chamber disposed in communication with the central water feed.

[0023] When controlling the outlet temperature of a water stream, the distance to the associated tap can be taken into consideration, thereby providing a water stream with a desired outlet temperature at the tap. Thus, if a particular tap is far away from the central tap, the outlet temperature of water away from the central tap will be warmer than water located closer to the central tap, for the same desired temperature at the tap.

[0024] To facilitate control of the water temperature, the controller may comprise or be in communication with a control unit which may comprise an algorithm configured to calculate the required outlet temperature of the water leaving the central water source depending on the desired water temperature at the faucet and the distance between the faucet and the central water source.

[0025] Thus, the controller is configured to individually control the water flow from the central water supply source to each faucet, and further configured to individually control the outlet temperature of the water flow from the central water supply source to each faucet. In one embodiment, the flow regulator can be configured to control both the water flow and the outlet temperature of the water flow. This can be done for each faucet individually. In an alternative embodiment, the flow regulator and temperature regulator may be applied as two separate devices.

[0026] The supply system may include a measuring device configured to measure the outlet temperature of the water at the outlet from the central supply system. The measurements may be used as input to an adjustment algorithm of the controller to fine-tune the temperature of the water flow at the outlet, thereby facilitating the delivery of water at the desired temperature of the faucet.

[0027] The central water supply may further comprise a circulation pipe for circulating water through the central water supply. This may help ensure that the temperature of the water in the central water supply is maintained above 55°C to reduce the risk of legionella, and may make it easier to control the temperature of the taps and therefore provide a shorter response time for delivery of water at the desired temperature at the taps.

[0028] To facilitate individual control of water flow and temperature at each faucet, the plumbing system provides individual flow paths from a central water supply to each faucet.

[0029] An operating device may be located at each faucet, the operating device configured to communicate with the controller to control the flow of water to the faucet and to control the temperature of the water. By placing an operating device at each faucet, a user may control the flow and temperature of water to that particular faucet. It should be understood that the operating device may alternatively be used to control the flow and temperature of water at more than one faucet. These alternatives may be combined, whereby the system may comprise one or more operating devices each located at a faucet for operating the controller to control the flow and temperature to a single faucet, and the system may further comprise one or more operating devices each located at a faucet for operating the controller to control the flow and temperature to one or more faucets.

[0030] The control device may be configured to receive a control signal in the form of at least one of a touch signal, an audible signal, and a gesture signal, and configured to operate the controller based on the received signal. The control device may include, as an example, a touch panel for controlling the flow rate and / or temperature by tapping on the panel and / or by applying pressure to the panel. In one embodiment, the touch panel may include multiple areas, each designating a particular amount of water flow and / or a particular temperature, such that the touch panel corresponds to a plurality of different user patterns. In an alternative embodiment, applying pressure in one area increases the temperature, while applying pressure in another area decreases the temperature. Similarly, applying pressure in one area may increase the flow rate, while applying pressure in another area may decrease the water flow rate.

[0031] It should be understood that the above mentioned possibility of application of user patterns from multiple defined areas on the device can be combined with the above mentioned application of pressure on defined areas.

[0032] In another embodiment, the action may be performed by the use of an audible signal, for example using commands of the form "warmer", "colder", "more", "less", "stop", "start". Other commands are also applicable. It may also be possible to incorporate predefined commands corresponding to user patterns, such as "brush teeth", "wash hands", or "shower", each command corresponding to a water flow at a specified temperature, with a specified flow rate, and with a specified duration. In one embodiment, it may be possible to abort a given command after starting it, for example if the associated action is regretted.

[0033] In further embodiments, actions may be performed by gesture signals. The same types of events as described above can be accomplished by gestures. As an example, if the user's hand is moved to the right, the water flow may be warmer.

[0034] It should be understood that the above commands are example commands and that other and / or additional commands are also applicable.

[0035] By applying audible and / or gestural signals, it is possible to operate the control device without touching it, reducing the risk of transferring bacteria due to poor hygiene.

[0036] In one embodiment, at least two of the different types of signals may be combined.

[0037] The controller may communicate with a database including a plurality of predefined control strategies, each of which defines a desired water flow and a desired temperature. Thus, the predefined control strategies may correspond to a number of user patterns, such as "tooth brushing", "hand washing", and "showering". Certain predefined control strategies may be stored in the database when the system is installed, while other control strategies may be added by the user via the user interface. In one embodiment, it may be possible to not only add control strategies, but also to modify the predefined control strategies via the user interface. Through the database, the controller may control at least one of the water flow and the temperature. The operating device may be configured to select at least one predefined control strategy.

[0038] For further security, the piping system may comprise an inner tube and an outer tube arranged coaxially, where the outer tube is configured for protection of the inner tube. In case the inner tube forming the water flow path is broken, the leakage can be kept in the outer tube without damaging the building. For further security, with the piping system consisting of the inner tube and the outer tube, leakage monitoring can be applied in the cavity between the inner tube and the outer tube as a monitoring element. The monitoring element can be configured to generate an alarm if water is detected in the cavity. In one embodiment, the monitoring element can generate an alarm signal that can be transmitted to at least one of a controller, an operating device, a mobile phone, a monitoring device, or another device that can be read by the user or that can provide an alarm to the user.

[0039] The water supply system may further comprise a monitoring unit for monitoring water usage, the controller may be configured to transmit usage signals specifying water flow from the central water supply to the monitoring unit, and the monitoring unit may be configured to store said usage signals.

[0040] In one embodiment, the monitoring unit may be configured to store the usage signal of each faucet separately. As an example, it may be possible to compare the usage signal with previously stored usage signals; i.e., historical values, and / or to compare the usage signal with expected values. These comparisons may allow for detection of faults, such as a leaky toilet due to continuous water usage.

[0041] The controller may further be configured to send a temperature signal to the monitoring unit specifying the temperature of the water flow from the central water supply. The monitoring unit may in turn be configured to store said temperature signal, whereby correlated values ​​of flow rate and temperature may be monitored and stored in the monitoring unit.

[0042] A user can log into the monitoring unit to access the monitored and stored usage and / or temperature signals. The monitoring unit can alternatively or additionally communicate with a cell phone, another mobile device, a pc, or another user accessible device.

[0043] In the case of flow and temperature monitoring, the system may identify that one or more parts of the piping system have been exposed to water with temperatures mainly in the range of 20-45°C. Legionella may be at risk, so with the aid of flow and temperature monitoring this risk can be eliminated if temperatures do not regularly rise above 55°C. If such a situation is found during monitoring, the system may generate a warning signal / message. In response, the user may request that the water be heated to a temperature above 55°C, providing a water flow through the part of the piping in question, thereby killing Legionella bacteria if present (Legionella flushing). The system may be equipped with a safety measure, which ensures that no heating of the water takes place when the user operates the controller at a water tap placed in the piping system in question.

[0044] Also, flow monitoring can provide the possibility to calculate water consumption at individual taps separately. Additional monitoring of temperature can provide more accurate accounting. This possibility can be particularly relevant for apartment and office buildings with multiple tenancies.

[0045] In one embodiment, the central water supply can be in fluid communication with an additional supply device containing an additional medium, and the supply of the additional medium to the at least one faucet can be controlled by the controller. The additional medium can be a fluid, such as a gas or liquid medium. For example, the additional medium can be CO2 so as to be able to provide sparkling / saturated water. Another example of an additional medium can be detergent, which can be particularly relevant if the faucet is a washing machine or dishwasher. In one embodiment, the additional medium can be water heated, for example by a cooker, to provide water at a higher temperature than the conventional hot water provided by the faucet. In an embodiment where the water supply system is used industrially, the additional medium can be, for example, oil or colorant for food or fabric. Depending on the type of faucet, other media can also be applied.

[0046] In one embodiment, the controller may be configured to simultaneously control the supply of water flow and the supply of the additional medium to the at least one water tap. Thus, the controller may control the supply of water and the additional medium such that the water and the additional medium are supplied simultaneously. Alternatively, the simultaneous control may be achieved by alternating the supply of water and the additional medium.

[0047] The additional medium may be supplied to the faucets via a separate flow path from the central faucet to the faucets. The additional medium may be mixed with the hot and cold water in a water mixing chamber located in communication with the central water supply. In an alternative embodiment, the additional medium may be mixed with the hot and cold water in an additional mixing chamber located after the water mixing chamber, whereby the additional medium may be added after providing the required water flow and temperature. In a further alternative, the additional medium may be added to the flow path via an inlet in the piping system without the use of an additional mixing chamber.

[0048] According to a second aspect, the disclosure provides a method of controlling a water supply system having a central water supply, the method comprising: a plurality of water taps; an operating device located at one of the water taps; a piping system connecting the central water supply and the plurality of water taps, the piping system having a separate flow path from the central water supply to each of the water taps; and a controller individually controlling water flow from the central water supply to the at least one water tap and individually controlling an outlet temperature of the water flow at an outlet of the central water supply, the controller being located at the central water supply, and operating the controller at the water tap via the operating device.

[0049] It should be understood that a person skilled in the art will readily recognize that any feature described in combination with a first aspect of the present disclosure can also be combined with a second aspect of the present disclosure, and vice versa.

[0050] The water supply system according to the first aspect of the present disclosure is well suited for carrying out the method steps according to the second aspect of the present disclosure, and therefore the comments made above in relation to the water supply system are equally applicable in relation to the present method.

[0051] According to a third aspect, the disclosure provides a controller for controlling a water flow in a supply system, the controller comprising an operating device for receiving a user request, a flow regulator and a temperature regulator for controlling the flow in the supply system and an outlet temperature of the water flow at an outlet of a central supply, and a communication device for communicating with the operating device, the controller being configured to control the water flow at the outlet of the central supply and the outlet temperature of the water flow based on the request received from the operating device.

[0052] The flow regulator and the operating device may be two separate devices, and the flow regulator may be configured to be located at a central water supply. The operating device may be located at a water faucet, where a user provides a user request, thereby controlling the water flow, and in one embodiment, the temperature of the water.

[0053] The flow regulator and temperature regulator may be a single regulator unit, as exemplified below.

[0054] It should be understood that a person skilled in the art will readily recognize that any feature described in combination with the first and second aspects of the present disclosure can also be combined with the third aspect of the present disclosure, and vice versa.

[0055] The controller according to the third aspect of the present disclosure is well suited to the water supply system of the first aspect and to carrying out the method steps according to the second aspect of the present disclosure, and therefore the comments made above with respect to the water supply system and method are equally applicable with respect to the controller.

[0056] In certain embodiments, the flow regulator may include two separate regulating elements that are movable relative to one another. The inlets to the flow regulator may include a hot water inlet and a cold water inlet. When at least one of the regulating elements is moved, the opening ratio may be adjusted to adjust the flow rate of the water and the temperature of the water exiting the flow regulator. The hot water inlet and cold water inlet may be located on one side of the regulating element, while the outlet of the flow regulator may be located on the opposite side of the regulating element.

[0057] The flow regulator may include a drive element, such as a motor, that may be configured to move at least one adjusting element relative to another adjusting element, hi an embodiment, the drive element may be a stepper motor.

[0058] In one embodiment, one of the adjustment elements is fixedly mounted within the flow regulator and the other adjustment element is movably mounted. Fixedly mounted may refer to a fixed adjustment element, while movably mounted may refer to a movable adjustment element.

[0059] Each of the tuning elements may include one or more openings. By moving the tuning elements relative to one another, the overlap between the openings of the fixed tuning element and the openings of the movable tuning element can be changed, thereby changing the flow rate and / or temperature.

[0060] In one embodiment, the fixed adjustment element may comprise two openings, one in fluid communication with the hot water inlet and the other in fluid communication with the cold water inlet. The openings may be of the same size and / or shape.

[0061] The movable adjusting element may include two openings, four openings, six openings, eight openings, ten openings, or even more openings, such as twenty openings or thirty openings. At least some of the openings may be different sizes. In one embodiment, the openings are identical in pairs. The flow through the flow regulator may depend on the overlap between the openings of the fixed adjusting element and the openings of the movable adjusting element. The overlap may also determine the temperature of the water flow.

[0062] The flow rate and water temperature may be varied by providing conditioning elements of different sizes and / or shapes, having different numbers of openings, openings of different sizes and / or shapes.

[0063] The embodiments of the present disclosure will be further described with reference to the drawings. [Brief description of the drawings]

[0064] [Figure 1] FIG. 1 illustrates one embodiment of a water supply system. [Diagram 2] FIG. 2 illustrates one embodiment of a water supply system. [Diagram 3] FIG. 3 shows a portion of one embodiment of a water supply system. [Figure 4] FIG. 4 shows a portion of the controller shown in FIG. [Diagram 5] FIG. 5 shows a portion of the controller shown in FIG. [Figure 6] FIG. 6 illustrates a portion of the controller for one embodiment of the water supply system. [Figure 7] FIG. 7 shows a schematic of the water flow through the controller of the water supply system. [Figure 8] FIG. 8 illustrates another portion of the controller of one embodiment of the water supply system. [Figure 9] 9A-9C show a portion of the controller of one embodiment of a water system undergoing maintenance / repair. [Figure 10] 10A to 10C show one embodiment of the flow regulator. [Figure 11]11A-11B show one embodiment of a regulator element of the flow regulator shown in FIGS. 10A-10C. [Figure 12] 12A-12E show the adjustment element of FIG. 11B in different positions. [Figure 13] FIG. 13 shows a schematic cross-section of a portion of a controller for a water supply system. [Figure 14] FIG. 14 shows a cross-section of a portion of a controller for a water supply system. [Figure 15] FIG. 15 illustrates a schematic diagram of one embodiment of a water supply system. [Figure 16] FIG. 16 illustrates one embodiment of the operating device, and FIG. [Figure 17] 17A and 17B show an alternative embodiment of the control device. [Figure 18] 18A-18D show further alternative embodiments and views of the operating device. [Figure 19] 19A-19C show a further alternative embodiment of the operating device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0065] It should be understood that the detailed description and specific examples, while indicating embodiments of the present disclosure, are given by way of illustration only, since various changes and modifications within the spirit and scope of the disclosure will become apparent to those skilled in the art from this detailed description.

[0066] Fig. 1 shows an embodiment of a water supply system 1. The water supply system 1 comprises a central water supply 2 and at least one water tap 3. In the illustrated embodiment, the system includes five different water taps 3, BR is a bathtub, HV is a washbasin and KV is a kitchen washbasin. An operating device 4 is arranged at each water tap 3.

[0067] The piping system 5 connects the central water supply 2 with each of the taps 3. The piping system 5 forms a flow path for water from the central water supply 2 to each of the taps 3. The piping system 5 is formed by separate pipes leading from the central water supply 2 to each of the taps 3, providing a separate flow path for water to each of the taps 3.

[0068] The water supply system 1 further comprises a controller 6 for controlling the water flow from the central water supply 2 to the taps 3 and for controlling the temperature. The controller 6 is located in the central water supply 1 and is operable via an operating device 4 at the taps 3.

[0069] In the embodiment shown, the water supply system 1 is arranged in a single house 7 as seen from above.

[0070] Figure 2 shows a part of an embodiment of the water supply system 1. Each of the boxes 100 comprises six separate controller elements 6' (see Figures 3, 4 and 5). Each controller element 6' forms part of a controller 6 for controlling the water flow and for controlling the temperature of the water. The piping system 5 forming the separate flow paths for the water from the central water supply 2 to each tap 3 is shown by sections of separate piping extending from each of the boxes 100.

[0071] Figure 3 shows part of an embodiment of a controller 6 for a water supply system 1. The controller 6 comprises six separate flow regulators 14, each with a valve house (see Figure 14), two regulating elements (see Figures 11A and 11B) and a step motor 16. A hot water inlet 17A and a cold water inlet 17B are located above to supply hot and cold water to each flow regulator. A piping system 5 forming separate flow paths for water from the central water supply 2 to each tap 3 is to be connected at an outlet 18. At the outlet 18, the pipes (not shown) are connected via valves allowing manual shutoff of a single pipe in case of repair, maintenance or emergency.

[0072] 4 and 5 show a portion of the controller 6 shown in FIG.

[0073] Figure 6 shows a portion of a controller 6 for controlling water flow in one embodiment of the water supply system 1. In the embodiment shown, the controller 6 comprises six separate housing elements 10, three manifolds 12, and six flow regulators in the form of valves 14 (see Figure 3), with the valves 14 located in each of the separate housing elements 10. The illustrated controller 6 is therefore configured to control water flow to six water taps 3. A piping system 5 forming a flow path for water from the central water supply 2 to each of the water taps 3 is illustrated by a portion of separate piping extending from each housing element 10.

[0074] The hot and cold water inlets are illustrated by two valves 13 .

[0075] Figure 7 shows a schematic of the water flow through the controller 6 for the water supply system 1. Hot and cold water are supplied to each flow regulator 14 via a hot water inlet 17A and a cold water inlet 17B. A common hot water pipe 117A supplies hot water, while a common cold water supply pipe 117B supplies cold water. In the flow regulator 14, the hot and cold water are mixed to supply water at the required temperature and flow rate. In the illustrated embodiment, the flow regulator 14 comprises a regulating element (see also Figures 11A and 11B) and a step motor, as described below in connection with Figures 10-14.

[0076] The controller 6 shown in Figure 7 further comprises an additional valve 114 to enable the supply of additional medium to at least one of the faucets. In the embodiment shown, an additional valve 114 is provided in communication with each flow regulator 14 so that additional medium can be supplied to each faucet. A common additional medium pipe 117C supplies the additional medium.

[0077] Water and additional media are supplied to each tap via a separate outlet 18 .

[0078] In the embodiment shown, a separate flow meter FM and temperature sensor TS is provided at each outlet 18, providing the ability to monitor water consumption in terms of both flow rate and temperature.

[0079] Figure 8 shows in an exploded view the separate parts of the controller 6 shown in Figure 6. Two valves 14 may be mounted on the manifold 12 and each of the valves 14 may be covered by a separate housing element 10.

[0080] 9A-9C show different parts of the controller 6 shown in FIG. 6 during maintenance / repair.

[0081] 9A shows replacement and / or adjustment of components of the valve 14. Replacement and adjustment can be performed with the housing element 10 open.

[0082] 9B shows replacement of the entire control element 6' of the controller 6. By loosening the four screws 11 and the tube 5, the entire control element 6' can be removed.

[0083] FIG. 9C illustrates replacement of parts of the valve 14, which is first removed from the controller 6 and then repaired.

[0084] 10A-10C show an embodiment of a flow regulator 14 in the form of a valve. The flow regulator 14 comprises a valve house 14A, 14B, two adjusting elements 15A, 15B (see also FIGS. 11A and 11B), and a step motor 16. The step motor 16 is configured to move one adjusting element 15B relative to the other adjusting element 15A. It should be understood that the step motor in alternative embodiments can be replaced by another type of motor or drive element capable of moving at least one of the adjusting elements.

[0085] The inlets to the flow regulator 14 include a hot water inlet 17A and a cold water inlet 17B. When one of the regulating elements 15B is moved, the aperture ratio is adjusted, thereby adjusting the water flow and temperature of the water leaving the flow regulator 14. The hot water inlet 17A and the cold water inlet 17B are located on one side of the regulating elements 15A, 15B, while the outlet 18 of the flow regulator 14 is located on the opposite side of the regulating elements. A mixing chamber 118 is formed on this opposite side of the regulating elements 15A, 15B. The outlet 18 is in fluid communication with the mixing chamber 118 to provide water at the required flow rate and temperature at each tap.

[0086] Figures 11A-11B show embodiments of the adjusting elements 15A, 15B of the flow regulator in Figures 10A-10C. In the embodiment shown, the adjusting element 15B is a movable element and the other adjusting element 15A is a stationary element.

[0087] The openings 19A in the fixed adjusting element 15A are in fluid communication with the hot water inlet 17A and the cold water inlet 17B, respectively. In the illustrated embodiment, the movable adjusting element 15B includes ten openings 19B. Some of the openings 19B are of different sizes. In the illustrated embodiment, the openings 19B are pairwise identical, i.e., the ten openings 19B are formed such that there are five different sizes. The flow through the flow regulator 14 depends on the overlap between the openings 19A of the fixed adjusting element 15A and the openings 19B of the movable adjusting element 15B. The overlap also determined the temperature of the water flow.

[0088] Figures 12A-12E show the adjusting element 15B of Figure 11B in different positions, which correspond to different temperatures of the water flow. Figure 12A-1 / 5 flow rate and 6 degree water flow. Figure 12B-60 degree water flow at 5 / 5 flow rate (full open). Figure 12C-2 / 5 Water flow at 20 degrees. Figure 12D-4 / 5 Flow rate at 38 degrees. Figure 12E - Zero water flow.

[0089] Water flows through the flow regulator through the uncolored openings in Figures 12A-12E. The dark openings and the openings outlined in diagonal lines are the openings in movable adjusting element 15B that are blocked by fixed adjusting element 15A.

[0090] It should be understood that the above diagrams correspond to the specific embodiment of flow regulator 14 having regulating elements 15A, 15B shown in Figures 11A and 11B. The flow rate and water temperature can be varied by providing regulating elements of different sizes and / or shapes, having different numbers of openings, openings of different sizes and / or shapes.

[0091] FIG. 13 shows a schematic cross-section of a part of a controller 6 for a water supply system 1. The flow regulator 14 comprises two regulating elements 15A, 15B (see also FIGS. 11A and 11B) and a step motor 16. The inlets to the flow regulator 14 comprise a hot water inlet 17A and a cold water inlet 17B. The hot water inlet 17A and the cold water inlet 17B are located on one side of the regulating elements 15A, 15B, while the outlet 18 of the flow regulator 14 is located on the other side of the regulating elements. On this other side a mixing chamber 118 is formed. The outlet 18 is in fluid communication with the mixing chamber 118 and provides water at the required flow rate and temperature at each tap. An additional valve 114 is provided to allow the supply of an additional medium to at least one tap. The additional medium is supplied to the mixing chamber 118 via the additional valve 114.

[0092] When the additional medium is supplied via the additional valve 114, the regulating elements 15A, 15B may be in a closed configuration, whereby water cannot flow through the openings 19A, 19B (see Figures 11A, 11B) of the regulating elements, thereby achieving a backflow of the additional medium into the hot and cold water supplies.

[0093] 14 shows a cross-section of a portion of the controller 6 for the water supply system 1. The flow regulator 14 comprises two regulating elements 15A, 15B and a stepper motor 16. The inlets to the flow regulator 14 comprise a hot water inlet 17A and a cold water inlet 17B. Additional medium is provided at inlet 17C. The outlet 18 is in fluid communication with a mixing chamber 118 to provide water at the required flow rate and temperature at each tap.

[0094] Figure 15 shows a schematic representation of an embodiment of the water supply system 1. The upper controller 6A comprises eight manifolds for supplying water to eight different taps. The middle controller 6B comprises eight manifolds for supplying water to eight different taps in the form of heaters, such as radiators and / or underfloor heating. The lower controller 6C comprises eight manifolds for returning water from the eight different heaters.

[0095] The flow direction is indicated by arrows 30. The water supply system 1 further comprises a number of check valves 32 and a pump .

[0096] The water supply system further comprises three different reservoirs 36. In the illustrated embodiment, the upper reservoir 36 labeled 1 is for boiling water, the middle reservoir 36 labeled 2 is for cold water, and the lower reservoir 36 labeled 3 is for cold sparkling water. The three reservoirs 36 (i.e., each an additional supply containing an additional medium) are in fluid communication, and controller 6D enables the supply of additional medium to controllers 6A, 6B, and 6C via additional inlets (not shown) in each of the controllers.

[0097] Figure 16 shows an embodiment of the operating device 4. In the left part of Figure 9, the operating device 4 is mounted in the form of a basin on the wall next to the tap 3. The upper part of the operating device 4 displays the water temperature, here 28.6 degrees Celsius. The touch panel 20 is for registering touches to operate the controller.

[0098] The illustrated control device 4 includes a gesture sensor 22 configured to sense user gestures. In one embodiment, the gesture sensor 22 can be configured to control operations based on the following gestures: an "up" gesture can increase the flow, while a "down" gesture can decrease the flow. A "left" gesture and a "right" gesture can increase and decrease the temperature, respectively. A gesture toward the gesture sensor 22 can turn the water on and / or off. It should be understood that the above gestures are meant only as examples of gestures. In an alternative embodiment, a "left" gesture and a "right" gesture can increase and decrease the flow, respectively.

[0099] Additionally, it should be appreciated that other gestures are also applicable, such as gestures of different speed / sensitivity, or circular gestures.

[0100] Figures 17A and 17B show an alternative embodiment of the control device 4. In Figure 17B, the interior portion of the control device 4 is visible. The control device 4 includes a battery 28, a proximity sensor 24, and three distance sensors 26. In the embodiment shown, the user can select between five levels of water flow and ten levels of water temperature. This is done by hovering a hand over the three distance sensors 26. Moving the hand up, down, left and right controls the flow and temperature. The proximity sensor 24, which can be a touchless or on / off button, can be used to turn the faucet on and off.

[0101] An LED 28 is integrated into the control 4. The LED 28 may be used to provide feedback to the user.

[0102] Figures 18A-18D show an alternative embodiment of an actuator 4. The actuator 4 shown is sized and shaped to allow it to be incorporated into a fixture 40 for a conventional wall outlet. The fixture 40 is shown from the front and rear in Figures 18C and 18D. Figure 18A is a front view of the actuator 4, and Figure 18B shows the actuator 4 inserted flush into the wall within the fixture 40.

[0103] The control 4 shown includes four push buttons 42 for controlling water flow and temperature, an LED 28 to provide feedback to the user, and a sensor 24 that can be used to turn the tap on and off.

[0104] Figures 19A-19C show an alternative embodiment of a control device 4. The illustrated control device 4 is also sized and shaped to allow the control device to be incorporated into a fixture 40 for a conventional wall socket. The fixture 40 is shown in a front view in Figure 19C. Figure 19A is a front view of the control device 4, and Figure 19B shows the control device 4 inserted flush into the wall within the fixture 40.

[0105] The illustrated control device 4 includes four touch sensors 44 for controlling water flow and temperature by touching the sensors 44, and an LED 28 for providing feedback to the user. The present disclosure also includes the following aspects. [Aspect 1] 1. A water supply system comprising: - a central water supply; -Multiple faucets and - an operating device arranged on one of the taps; a piping system connecting the central water supply and the plurality of water taps, the piping system including a separate flow path from the central water supply to each of the water taps; a controller for individually controlling the water flow from the central water supply to the plurality of taps and for individually controlling the outlet temperature of the water flow at the outlet of the central water supply, A water supply system, wherein the controller is located in the central water supply, and the controller is operable via the operating device of a water faucet. [Aspect 2] The water supply system of claim 1, wherein the operating device is configured to generate an electrical demand signal, and the controller is configured to receive the electrical demand signal and to control water flow and the outlet temperature in response to the demand signal. [Aspect 3] 3. The water supply system of claim 1 or 2, wherein an operating device is disposed at each water faucet, the operating device configured to communicate with the controller to control water flow to the faucet and to control an outlet temperature of the water flow from the central water supply. Aspect 4 A water supply system as described in any one of aspects 1 to 3, wherein the operating device is configured to receive an operation signal in the form of at least one of a touch signal, an audible signal, and a gesture signal, and is configured to operate the controller based on the received signal. Aspect 5 5. The water supply system of any one of aspects 1 to 4, wherein the controller is in communication with a database comprising a plurality of predefined control strategies, each of the plurality of predefined control strategies defining a desired water flow and a desired temperature, and the operating device is configured to select at least one of the predefined control strategies. Aspect 6 6. The water supply system of any one of the preceding aspects, wherein the controller includes at least one flow regulator for controlling water flow. Aspect 7 A water supply system described in any one of aspects 1 to 6, wherein the piping system comprises an inner pipe and an outer pipe arranged coaxially, the outer pipe being configured to protect the inner pipe. Aspect 8 A water supply system as described in any one of aspects 1 to 7, further comprising a monitoring unit, wherein the controller is configured to transfer a usage signal identifying water flow from the central water supply to the monitoring unit, and the monitoring unit is configured to store the usage signal. Aspect 9 The water supply system of aspect 8, wherein the controller is further configured to transmit a temperature signal identifying a temperature of the water flow from the central water supply to a monitoring unit, the monitoring unit being configured to store the temperature signal. Aspect 10 A water supply system as described in any one of aspects 1 to 9, wherein the central water supply is in fluid communication with an additional supply device containing an additional medium, and the supply of the additional medium to at least one water faucet is controlled by the controller. Aspect 11 11. The water supply system of claim 10, wherein the controller is configured to simultaneously control the supply of water flow and the supply of additional medium to at least one faucet. Aspect 12 1. A method of controlling a water supply system, comprising: The water supply system comprises: A central water supply section; Multiple faucets and An operating device disposed on one of the faucets; a piping system connecting the central water supply and the plurality of faucets, the piping system including a separate flow path from the central water supply to each faucet; a controller for individually controlling the water flow from the central water supply to at least one water tap and for individually controlling an outlet temperature of the water flow at an outlet of the central water supply, the controller being disposed in the central water supply; The method includes operating the controller via the operating device on the faucet. Aspect 13 1. A controller for controlling water flow in a water supply system, comprising: The controller an operating device for receiving a user request; a flow regulator and a temperature regulator for controlling the flow in the water supply system and for controlling the outlet temperature of the water flow at the outlet of the central water supply; A communication device for communicating with the operation device, The controller is configured to control the water flow at an outlet of the central water supply and an outlet temperature of the water flow based on a request received from the operating device. Aspect 14 14. The controller of claim 13, wherein the flow regulator and the operating device are two separate devices, and the flow regulator is configured to be located in the central water supply. Aspect 15 15. The controller of any one of embodiments 13 to 14, wherein the flow regulator and the temperature regulator are a single regulating unit.

Claims

1. 1. A water supply system comprising: - a central water supply; - A plurality of faucets; - an operating device arranged on one tap, a piping system connecting said central water supply with said plurality of taps, said piping system including a separate flow path from the central water supply to each tap; a controller for individually controlling the water flow from the central water supply to the plurality of taps and individually controlling the outlet temperature of the water flow at an outlet of the central water supply, the controller comprising a flow regulator for each tap, the flow regulator being configured to control both the water flow and the outlet temperature of the water flow; A water supply system, wherein the controller is disposed in the central water supply, the controller being operable via the operating device of the water faucet, and configured to control water flow and outlet temperature based on requests received from the operating device.

2. 2. The water supply system of claim 1, wherein the operating device is configured to generate an electrical demand signal, and the controller is configured to receive the electrical demand signal and to control water flow and the outlet temperature in response to the electrical demand signal.

3. 3. The water supply system of claim 1 or 2, wherein an operating device is disposed at each water faucet, the operating device configured to communicate with the controller to control the water flow to the faucet and to control the outlet temperature of the water flow from the central water supply.

4. 4. The water supply system of claim 1, wherein the operating device is configured to receive an operation signal in the form of at least one of a touch signal, an audible signal, and a gesture signal, and is configured to operate the controller based on the received signal.

5. The system further comprises a database, the controller being in communication with the database comprising a plurality of predefined control strategies, each of the plurality of predefined control strategies defining a desired water flow and a desired temperature, and the operating device being configured to select at least one of the predefined control strategies. A water supply system according to any one of claims 1 to 4.

6. 6. The water supply system of claim 1, wherein the piping system comprises an inner pipe and an outer pipe arranged coaxially, the outer pipe being configured to protect the inner pipe.

7. 7. The water supply system of claim 1, further comprising a monitoring unit, the controller configured to transfer usage signals identifying water flow from the central water supply to the monitoring unit, the monitoring unit configured to store the usage signals.

8. 8. The water supply system of claim 7, wherein the controller is further configured to transmit a temperature signal identifying a temperature of the water flow from the central water supply to a monitoring unit, the monitoring unit configured to store the temperature signal.

9. 9. The water supply system of claim 1, further comprising an additional supply device, the central water supply being in fluid communication with the additional supply device containing an additional medium, and the supply of the additional medium to at least one water tap being controlled by the controller.

10. 10. The water supply system of claim 9, wherein the controller is configured to simultaneously control the supply of water flow and the supply of additional medium to at least one water faucet.

11. 1. A method of controlling a water supply system, comprising: The water supply system comprises: A central water supply section; Multiple faucets and An operating device disposed on one of the faucets; a piping system connecting the central water supply and the plurality of faucets, the piping system having a separate flow path from the central water supply to each faucet; a controller for individually controlling water flow from the central water supply to a plurality of taps and individually controlling an outlet temperature of the water flow at an outlet of the central water supply, the controller comprising a flow regulator for each tap, the flow regulator configured to control both the water flow and the outlet temperature of the water flow, the controller being located in the central water supply; The method includes operating the controller via the control device on the faucet to control water flow and outlet temperature based on a request received from the control device.

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