Leak Detector System

Abstract

The present invention describes a leak detector system (1) including a sensor unit (2), the sensor unit (2) including a moisture sensor (20) and a transmitter, the leak detector system further including an enclosure material (3) in which the sensor unit (2) is embedded.

Description

[Technical field]

[0001] The present invention relates to a leak detector system. Summary of the Invention

[0002] The present invention relates to a leak detector system including a sensor unit, the sensor unit including a moisture sensor and a transmitter, the leak detector system further including an enclosure material in which the sensor unit is embedded.

[0003] In its broadest sense, the inventive concept is directed to an arrangement in which a moisture sensor is located where water leakage would be of great concern, such as the intended dry side of a moisture barrier, and the sensor unit is embedded by a surrounding material, e.g., part of the material that constitutes the actual moisture barrier, so that according to one embodiment of the invention, the surrounding material is at least part of the moisture barrier. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0004] Specific Embodiments of the Invention DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, specific embodiments of the present invention are disclosed and further described.

[0005] According to one specific embodiment of the invention, the enveloping material is an embedded arrangement, preferably hermetically sealed. It should be mentioned again that the embedded arrangement can actually be part of the installed moisture barrier. Moreover, the embedded arrangement may also be provided as a separate cover for the moisture sensor, in which case the entire unit is placed "directly under" the moisture barrier.

[0006] According to yet another specific embodiment, the transmitter is configured to transmit a signal through an enclosing material.

[0007] According to yet another specific embodiment of the present invention, the leak detector system further includes a charging unit including a battery, the charging unit configured to charge the sensor unit. Moreover, according to yet another specific embodiment of the present invention, the sensor unit is disposed on the sealed side of the moisture barrier and the charging unit is disposed on the other side of the moisture barrier. One such example is shown in FIG. 1. One advantage of such an arrangement is that the charging unit may be easily accessible by a user, for example, if any component, such as the battery, needs to be replaced.

[0008] It should be noted that charging the sensor unit can be achieved in the present invention by different means. One example is to provide the sensor unit with one or more piezoelectric elements. Small deformations in the material, such as those resulting from a temperature difference between the concrete and the upper material, may be used as a driving force to activate the one or more piezoelectric elements.

[0009] Moreover, it should be noted, however, that the connection between the sensor unit and the charging unit may be provided in different ways in the present invention. According to one specific embodiment, the connection between the charging unit and the sensor unit is made by wires. In such a case, the wires may be provided as part of the moisture barrier and may be connected to the charging unit, which is arranged, for example, inside a power outlet. In such a case, the charging unit may be charged by connection to the power outlet.

[0010] According to another embodiment of the invention, the connection between the charging unit and the sensor unit is wireless, preferably applying key charging technology, which may for example be provided by inductance.

[0011] The sensor unit also preferably includes a rechargeable battery or supercapacitor, in which case this may be charged by the charging unit.

[0012] Also, according to one specific embodiment, the leak detector system is configured using Bluetooth Low Energy (BLE) technology, which can be preferably used as an alternative from the charging unit to the receiver, or also between the sensor unit component and another sensor component, or between the sensor unit and the charging unit.

[0013] Moreover, according to yet another specific embodiment, the sensor unit is connected to a network bridge configured to transfer data transmitted from the transmitter of the sensor unit. In this connection, it is noted that one preferred alternative according to the invention is that the charging unit also functions as a data transmitter. In such a case, the charging unit preferably has a wifi connection, in which case it may transmit data received from the sensor unit to the cloud, or to a mobile device, or the like. Thus, the user can receive real-time data in an easy manner.

[0014] The moisture sensor according to the invention may be of different types. According to one embodiment, the moisture sensor is a passive sensor, preferably activated when it comes into contact with moisture. A passive sensor unit may be used in different ways according to the invention. As an example, a current may be sent from the charging unit to the sensor unit when the control system decides that it wants to collect some data. This may then be operated by a signal from another unit. As an example, if the leak detector system according to the invention is installed in connection with a shower unit, a current may be sent, for example, when a shower sequence is being performed. Moreover, in another example, the set operating schedule, which is not only valid in the shower example, may also determine the timing of sending a "request" from the charging unit to the sensor unit. For example, in a summer cottage, the system according to the invention may be set to make a request only when water is consumed, for example based on a signal that the main water intake is activated.

[0015] As can be seen from the above, according to one embodiment of the present invention, the leak detector system is configured to perform measurements by sending signals to the sensor unit, and to transmit measurement data from a transmitter of the sensor unit to the receiver unit. Moreover, as suggested above, according to one embodiment of the present invention, the receiver unit and the charging unit are one and the same unit.

[0016] According to yet another specific embodiment of the invention, the leak detector system is configured to perform measurements by sending a signal to the sensor unit based on the presence of another external event, such as when the shower unit is operated to supply water into the system or the like, and to transmit measurement data from a transmitter of the sensor unit to a receiver unit. As mentioned above, the unit of the leak detector system configured to send a signal to the sensor unit may be a charging unit of the leak detector system.

[0017] Moreover, as alluded to above, in accordance with yet another specific embodiment of the present invention, the charging unit is configured with a wifi connection for transmitting data.

[0018] Also, the technology used for the actual moisture sensor according to the invention may be different. According to the invention, any type of low-power wireless short-range data communication can be used. According to one specific embodiment of the invention, the moisture sensor is a Near Field Radio (NFC) sensor, a so-called NFC tag (Rfid). When an electric field is provided on the sensor, the NFC tag may transmit data with an identifier, etc. If the sensor stops sending back a signal, at that point an alarm may be activated or sent. Moreover, the sensor unit may also include additional components. As an example, according to one specific embodiment, the sensor unit further includes a temperature sensor.

[0019] The leak detector system according to the present invention may be installed in many different locations, and in fact, anywhere there is a risk of water leakage is a potentially suitable location for the leak detector system according to the present invention. One such suitable location is in close proximity to a floor drain unit. Thus, according to one specific embodiment of the present invention, the moisture sensor is located on the sealed side of the moisture barrier in close proximity to a floor drain unit, such as in close proximity to a shower floor drain unit.

[0020] Moreover, the sensor unit according to the invention may comprise a sensor wire, which may for example be placed around the floor drain unit, so that the detection may take place around the entire floor drain unit, so that if a leak is detected it is possible to know where the leak is located, or at least the direction of the leak source. Also according to the invention, a sensor wire may be used, which is placed around the supply tube, so that a leak can be detected very early, since the tube is the most frequent leak source.

[0021] The leak detector system may also include other units. According to one specific embodiment, a protective holder is disposed between the moisture sensor and the surrounding material. Its use can simplify the installation of some of the sensor units, thus ensuring that they are enclosed during the overall installation procedure.

[0022] The invention also relates to a leak detector system, as described above, placed on a floor covering, for example concrete, and embedded in a screed layer, with a moisture barrier further placed on the screed layer.

[0023] Moreover, according to yet another specific embodiment, the leak detector system includes at least two moisture sensors, which may increase redundancy and, as a result, reduce the risk of false alarms.

[0024] The present invention offers several advantages. Non-limiting examples include a smaller size required for the sensor unit compared to existing systems, and a lower energy demand to keep the system operational for extended periods of time. The present invention provides a communication system with efficient energy usage, of which BLE is one possible example. Furthermore, the present invention provides efficient scheduled data transmission using on-demand detection, as one example. These advantages provide a solution that is not demanding in terms of space required and has a battery time that lasts for more than 10 years. [Brief description of the drawings]

[0025] In Fig. 1, an embodiment of a leak detector system 1 according to the invention is shown. The leak detector system 1 comprises a sensor unit 2 including a moisture sensor 20. It is to be noted that in this case the sensor unit 2 also includes a "mother unit", which in this case is a unit preferably including a supercapacitor which is charged by a charging unit 10. It is to be noted that such an alternative may also include multiple moisture sensors 20 or sensor wires with nodes or the like, as seen in Fig. 2a and Fig. 2b. It is also possible to incorporate only the sensor unit 2 as one single unit with the moisture sensor 20 and charging functionality etc.

[0026] The leak detector system 1 also includes an enclosing material 3, which in this case is part of the moisture barrier 4. Also, as alluded to above, in this embodiment the leak detector system 1 also includes a charging unit 10, which charges the sensor unit 2, which may send an identifier and a signal regarding the presence or absence of a moisture alarm back to the charging unit 10, from which this data may then be transmitted to the cloud, or to a mobile device, or the like.

[0027] It should be noted that in this embodiment, the leak detector system 1 is disposed in association with the floor drain unit 5 .

[0028] Additionally, a floor covering 7, for example concrete, and a screed 8 are shown.

[0029] Also in figures 2a and 2b another embodiment of the leak detector system 1 according to the invention is shown, again arranged in relation to a floor drain unit 5. In this particular case the sensor unit 2 comprises a sensor wire arranged around the floor drain unit 5. Thus, if moisture is detected, the direction of the leak around the floor drain unit 5 can also be determined.

[0030] In Fig. 3 yet another specific embodiment of the invention is shown. In this case an alternative is shown in which the sensor unit 2 is protected by a protective holder 6 arranged between the moisture sensor 20 and the enveloping material 3. In this case the leak detector system 1 is arranged on a floor material 7, for example concrete, in which a layer of screed 8 is embedded a moisture barrier 4 arranged on top of the layer of screed 8. On top of the moisture barrier mortar, plaster or adhesive is arranged and further an outer surface of tiles or for example carpet is applied.

[0031] Second aspect of the invention According to a second aspect of the invention, this refers to a floor drain unit including a leak detector system including a sensor unit, the sensor unit including a moisture sensor and a transmitter.

[0032] The concepts of the present invention are intended to be used in a configuration for a floor drain unit in which the moisture sensor is located on the intended dry side of a moisture barrier created around the floor drain unit, where the sensor unit is embedded by the moisture barrier material.

[0033] Specific embodiments of the second aspect of the invention Specific embodiments of the present invention are disclosed and further described below.

[0034] In accordance with one specific embodiment of the present invention, the floor drain unit is intended to be placed in association with a moisture barrier material configured to embed a moisture sensor.

[0035] According to one specific embodiment, the transmitter is configured to transmit a signal through a moisture barrier material.

[0036] According to yet another specific embodiment of the present invention, the leak detector system further includes a charging unit including a battery, the charging unit configured to charge the sensor unit. Moreover, according to yet another specific embodiment of the present invention, the sensor unit is disposed on the sealed side of the moisture barrier and the charging unit is disposed on the other side of the moisture barrier. One such example is shown in FIG. 1. One advantage of such an arrangement is that the charging unit may be easily accessible by a user, for example, if any component, such as the battery, needs to be replaced.

[0037] It should be noted that charging the sensor unit can be achieved in the present invention by different means. One example is to provide the sensor unit with one or more piezoelectric elements. Small deformations in the material, such as those resulting from a temperature difference between the concrete and the upper material, may be used as a driving force to activate the one or more piezoelectric elements.

[0038] Moreover, it should be noted, however, that the connection between the sensor unit and the charging unit may be provided in different ways in the present invention. According to one specific embodiment, the connection between the charging unit and the sensor unit is made by wires. In such a case, the wires may be provided as part of the moisture barrier and may be connected to the charging unit, which is arranged, for example, inside a power outlet. In such a case, the charging unit may be charged by connection to the power outlet.

[0039] According to another embodiment of the invention, the connection between the charging unit and the sensor unit is wireless, preferably applying key charging technology, which may for example be provided by inductance.

[0040] The sensor unit also preferably includes a rechargeable battery or supercapacitor, which may then be charged by the charging unit. According to one specific embodiment, the leak detector system is also configured using Bluetooth Low Energy (BLE) technology. BLE can preferably be used as an alternative from the charging unit to the receiver, or also between the sensor unit component and another sensor component, or between the sensor unit and the charging unit.

[0041] Moreover, according to yet another specific embodiment, the sensor unit is connected to a network bridge configured to transfer data transmitted from the transmitter of the sensor unit. In this connection, it is noted that one preferred alternative according to the invention is that the charging unit also functions as a data transmitter. In such a case, the charging unit preferably has a wifi connection, in which case it may transmit data received from the sensor unit to the cloud, or to a mobile device, or the like. Thus, the user can receive real-time data in an easy manner.

[0042] The moisture sensor according to the invention may be of different types. According to one embodiment, the moisture sensor is a passive sensor, preferably activated when it comes into contact with moisture. A passive sensor unit may be used in different ways according to the invention. As an example, a current may be sent from the charging unit to the sensor unit when the control system decides that it wants to collect some data. This may then be operated by a signal from another unit. As an example, if the leak detector system according to the invention is installed in connection with a shower unit, a current may be sent, for example, when a shower sequence is being performed. Moreover, in another example, the set operating schedule, which is not only valid in the shower example, may also determine the timing of sending a "request" from the charging unit to the sensor unit. For example, in a summer cottage, the system according to the invention may be set to make a request only when water is consumed, for example based on a signal that the main water intake is activated.

[0043] As can be seen from the above, according to one embodiment of the present invention, the leak detector system is configured to perform measurements by sending signals to the sensor unit, and to transmit measurement data from a transmitter of the sensor unit to the receiver unit. Moreover, as suggested above, according to one embodiment of the present invention, the receiver unit and the charging unit are one and the same unit.

[0044] According to yet another specific embodiment of the invention, the leak detector system is configured to perform measurements by sending a signal to the sensor unit based on the presence of another external event, such as when the shower unit is operated to supply water into the system or the like, and to transmit measurement data from a transmitter of the sensor unit to a receiver unit. As mentioned above, the unit of the leak detector system configured to send a signal to the sensor unit may be a charging unit of the leak detector system.

[0045] Moreover, as alluded to above, in accordance with yet another specific embodiment of the present invention, the charging unit is configured with a wifi connection for transmitting data.

[0046] Also, the technology used for the actual moisture sensor according to the invention may be different. According to the invention, any type of low-power wireless short-range data communication can be used. According to one specific embodiment of the invention, the moisture sensor is a Near Field Radio (NFC) sensor, a so-called NFC tag (Rfid). When an electric field is provided on the sensor, the NFC tag may transmit data with an identifier, etc. If the sensor stops sending back a signal, at that point an alarm may be activated or sent. Moreover, the sensor unit may also include additional components. As an example, according to one specific embodiment, the sensor unit further includes a temperature sensor.

[0047] Moreover, the sensor unit according to the invention may comprise a sensor wire, which may for example be arranged around the floor drain unit, so that detection may be performed around the entire floor drain unit, so that if a leak is detected it is possible to know where the leak is located, or at least the direction of the leak source.

[0048] The leak detector system may also include other units. According to one specific embodiment, a protective holder is disposed between the moisture sensor and the surrounding material. Its use can simplify the installation of some of the sensor units, thus ensuring that they are enclosed during the overall installation procedure.

[0049] The invention also relates to a leak detector system, as described above, placed on a floor covering, for example concrete, and embedded in a screed layer, with a moisture barrier further placed on the screed layer.

[0050] Moreover, according to yet another specific embodiment, the leak detector system includes at least two moisture sensors, which may increase redundancy and, as a result, reduce the risk of false alarms.

[0051] The present invention offers several advantages. Non-limiting examples include a smaller size required for the sensor unit compared to existing systems, and a lower energy demand to keep the system operational for extended periods of time. The present invention provides a communication system with efficient energy usage, of which BLE is one possible example. Furthermore, the present invention provides efficient scheduled data transmission using on-demand detection, as one example. These advantages provide a solution that is not demanding in terms of space required and has a battery time that lasts for more than 10 years.

[0052] Provisions according to the second aspect of the invention 1. A floor drain unit (5) comprising a leak detector system (1) including a sensor unit (2), the sensor unit (2) including a moisture sensor (20) and a transmitter.

[0053] 2. A floor drainage unit (5) according to claim 1, wherein the floor drainage unit is intended to be placed in association with a moisture barrier material (4) configured to embed a moisture sensor (2).

[0054] 3. A floor drain unit (5) as claimed in claim 2, wherein the transmitter is adapted to transmit a signal through the moisture barrier material (4).

[0055] 4. A floor drainage unit (5) as described in any one of claims 1 to 3, wherein the leak detector system (1) further includes a charging unit (10) including a battery, and the charging unit (3) is configured to charge the sensor unit (2).

[0056] 5. A floor drainage unit (5) as claimed in claim 4, wherein the sensor unit (2) is arranged on a sealed side of the moisture barrier (4) and the charging unit (10) is arranged on the other side of the moisture barrier (4).

[0057] 6. The floor drainage unit (5) according to claim 4 or 5, wherein the charging unit (10) and the sensor unit (2) are connected by wiring.

[0058] 7. A floor drainage unit (5) according to claim 4 or 5, wherein the connection between the charging unit (10) and the sensor unit (2) is wireless, preferably applying key charging technology.

[0059] 8. A floor drainage unit (5) according to any one of claims 1 to 7, wherein the sensor unit (2) includes a rechargeable battery or a supercapacitor.

[0060] 9. A floor drain unit (5) according to any one of claims 1 to 8, wherein the leak detector system (1) is configured using Bluetooth Low Energy (BLE) technology.

[0061] 10. A floor drainage unit (5) according to any one of claims 1 to 9, wherein the sensor unit (2) is connected to a network bridge configured to forward data transmitted from the transmitter of the sensor unit (2).

[0062] 11. A floor drain unit (5) according to any one of claims 1 to 10, wherein the moisture sensor is a passive sensor, preferably activated upon contact with moisture.

[0063] 12. A floor drain unit (5) as claimed in any one of claims 1 to 11, wherein the leak detector system (1) is configured to perform measurements by transmitting a signal to the sensor unit (2) and further to transmit measurement data from a transmitter of the sensor unit (2) to a receiver unit.

[0064] 13. A floor drainage unit (5) as claimed in claim 12, wherein the receiver unit and the charging unit (10) are one and the same unit.

[0065] 14. A floor drain unit (5) as claimed in claim 12 or 13, wherein the leak detector system (1) is configured to perform measurements by sending a signal to the sensor unit (2) based on the presence of another external event, such as when the shower unit is operated and water is supplied into the system or the like, and further to transmit measurement data from a transmitter of the sensor unit (2) to a receiver unit.

[0066] 15. A floor drainage unit (5) according to any one of claims 4 to 14, wherein the charging unit (10) is configured with a wifi connection for transmitting data.

[0067] 16. A floor drain unit (5) according to any one of claims 1 to 15, wherein the moisture sensor (2) is a near field communication (NFC) sensor.

[0068] 17. A floor drainage unit (5) according to any one of claims 1 to 16, wherein the sensor unit (2) further includes a temperature sensor.

[0069] 18. A floor drainage unit (5) as described in any one of claims 1 to 17, wherein the sensor unit (2) includes one or more sensor wires, preferably one or more sensor wires arranged around the periphery of the floor drainage unit (5).

[0070] 19. A floor drainage unit (5) according to any one of claims 1 to 18, wherein a protective holder (6) is arranged between the sensor unit (2) and the moisture barrier material (4).

[0071] 20. A floor drainage unit (5) as claimed in any one of claims 1 to 19, wherein the leak detector system (1) is arranged on a floor material (7), such as concrete, and embedded in a screed layer (8), and further comprises a moisture barrier (4) arranged on the screed layer (8).

[0072] 21. A floor drain unit (5) according to any one of claims 1 to 20, wherein the leak detector system (1) comprises at least two moisture sensors (2).

[0073] Third aspect of the invention According to a third aspect of the invention, this refers to a water intake monitoring unit having the following features: - one or more flow measurement units, - one or more water quality measuring units; - a connection unit enabling the intake monitoring unit to be connected to an intake of a house, an apartment complex, a hotel or the like; and - Shutoff or flow diverter valves.

[0074] In connection with the expression "shut-off or flow-diverter valve", it should be mentioned that the intake monitoring unit has the ability to measure the flow, and therefore potential leaks, and the water quality, and can actuate the valve to close or open (or to remain open). This actuation is preferably made possible by a control system. To give some examples, if the flow measurement indicates the occurrence of a leak, the valve can be closed, so that water does not flow into the water distribution system, for example in a home. This is also why the valve can be considered as a shut-off valve in some cases. In another potential system, or as a complementary feature, the water may then be diverted to another unit instead. For example, if a low water quality is detected, the water flow may be directed to a unit where such a low water quality is acceptable, for example for flushing a toilet.

[0075] The concept according to the invention is directed to a unit for measuring various parameters, such as water flow, water quality and / or temperature, all of which may provide important data in relation to whether the water flowing into a house, apartment property, hotel or the like is suitable for use for various purposes and whether there is a leak or a potential risk for a future leak. Based on this, the shutoff valve is also an important feature to be used in case of an unintended flow. Furthermore, in case of low water quality, the intake monitoring unit or a control unit / monitoring system linked thereto may be activated, so that the water may only be used for certain applications, such as the toilet, but not for drinking. An alarm function may then inform the user that the water is not suitable for drinking but can be used for other applications.

[0076] Specific embodiments of the third aspect of the invention DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, specific embodiments of the present invention are disclosed and further described.

[0077] Preferably, the inlet monitoring unit according to the invention is provided with some kind of communication. According to one specific embodiment of the invention, the inlet monitoring unit includes a Bluetooth connection and / or a Wi-Fi connection. It is noted in this regard that other forms are also possible, such as 5G, GSM or other types.

[0078] According to yet another specific embodiment of the present invention, the inlet monitoring unit includes an external power source and / or an internal battery. As described below, the inlet monitoring unit preferably includes or is connected to a control system or some type of operating system. Some components of the power source may be additionally or alternatively provided within the control system.

[0079] Moreover, the inlet monitoring unit may include several different types of sensors. Thus, according to one specific embodiment of the present invention, the inlet monitoring unit further includes a temperature sensor. This sensor may be provided to measure the temperature of the inflow water, preferably the temperature of the cold water inlet. This may thus serve as an alarm for an increased risk of freezing. Moreover, it is noted that in a home or the like, in case cold and hot water flow into a mixer, two inlet monitoring units according to the present invention may be preferably installed, one located at the cold water inlet and the other at the hot water inlet. It is noted that the monitoring unit according to the present invention may be placed only at the cold water inlet, and this cold water may be heated in a boiler to provide hot water.

[0080] Now, returning to possible sensors. According to one specific embodiment, the inlet monitoring unit also includes a sensor for measuring the ambient temperature. In this case, this sensor measures the temperature of the outer surface of the tube, which may serve as a strong indicator for the risk of frost on the tube. Moreover, in warm climates, such an ambient temperature sensor may also serve as an alarm if the cold water is too warm. This may be considered as a Legionella alarm. By way of example, if a drinking water outlet or shower unit is connected to the inlet monitoring unit according to the invention, measuring the ambient temperature, or indeed the temperature of the cold water, may serve as a warning function to ensure that this water is not used for drinking or showering, but instead is sent to a waste system. This may be directly processed by the control system, or may only serve as a warning function to inform a specific user.

[0081] Moreover, according to yet another specific embodiment of the invention, the one or more water quality measurement units are at least one sensor that measures conductivity, preferably electrical conductivity (EC), for the water, or a turbidity sensor, or a combination of these. The EC value may be used as an indicator of water quality. Measuring the water quality here may be for providing valuable big data uses, and also for providing a water quality indication for a particular user, or for providing a calibration for e.g. a water circulation unit or a unit that depends thereon, such as e.g. a circulation shower. Another possible sensor to incorporate is one or more biosensors. The use of sensors that can measure different types of water properties may be interesting in the unit according to the invention. Electrical conductivity is one such, but others are possible.

[0082] Also, according to one specific embodiment of the present invention, the one or more flow measurement units are one low flow meter and one high flow meter. Incorporating a low flow meter and a high flow meter respectively is a way to ensure a wide measurement range for the water flow. Also, according to the present invention, a low flow meter that operates using pressure may be used.

[0083] The intake monitoring unit according to the invention may also function as a warning / alarm system. As suggested above, this alarm function may target the risk of frost / freezing, which can be very problematic for the tubes. Moreover, low water quality, for example from an EC measurement, may also be an alarm indicator. Also, with regard to the flow rate, the flow rate may be used to allow a comparison of the instantaneous consumption behavior with the consumption behavior over time, as will be explained below in connection with the method according to the invention. When a consumption behavior that is clearly out of the normally detected consumption is detected, this may indicate that there is a leak somewhere. This means that the intake monitoring unit according to the invention may also have a leak detection function. It should be noted that by measuring further other parameters, such parameters may also be used as a single indicator or as multiple indicators used together with other indicators. An example is measuring the pressure drop in the tubes. This may also serve as an indicator of a leak or of something problematic.

[0084] The intake monitoring unit may also include other means or units. According to one specific embodiment of the present invention, the intake monitoring unit includes both Bluetooth and Wi-Fi connections. Moreover, according to yet another specific embodiment of the present invention, the intake monitoring unit includes an external power source and a battery that provides power to maintain the connection when the power is interrupted.

[0085] Moreover, the present invention also concerns a water distribution system intended for domestic water use, the water distribution system comprising at least one intake monitoring unit according to the invention. As alluded to above, according to one specific embodiment of the invention, a running water boiler is provided to provide a hot water supply from a cold water supply. Moreover, the intake monitoring units according to the invention may be provided separately for the cold water supply and for the water supply. Thus, according to one specific embodiment of the invention, the water distribution system comprises one intake monitoring unit according to the invention for the hot water intake and one intake monitoring unit according to the invention for the cold water intake. In case separate monitoring units are installed, it is interesting that they can communicate with each other so that a complete consumption profile can be measured and evaluated.

[0086] The invention is also directed to a method for detecting potential or ongoing leaks, comprising monitoring flow rate behavior over time in an intake monitoring unit according to the invention linked to water usage in one or more water-using units, which may be considered as a type of AI application, where the monitoring unit compares instantaneous data with a user profile and indicates a leak if the consumption behavior appears abnormal.

[0087] According to yet another specific embodiment of the present invention, the method includes comparing the particular flow behavior with the flow behavior over time and sending an alarm to the user if there is a difference in the particular flow behavior compared to the flow behavior over time. In one example, this can be driven by measuring water consumption over time and comparing different time periods, such as in a home or hotel or the like.

[0088] Moreover, in accordance with yet another specific embodiment of the present invention, the method further comprises measuring the ambient temperature and may send an alarm when there is a risk of frost or a risk of Legionella growth.

[0089] With regard to the inlet monitoring unit according to the invention, the following may also be mentioned: Machine learning is very suitable to be used as a technique for most applications. To give some examples, most taps have the same flow / pressure drop profile, toilets have the same type / size of water tank and flush volume, washing machines have the same flow rate, shower units have the same flow rate over time, etc. Thus, the control unit / measurement system may set a user profile based on all such inputs, based only on measurements of the flow rate and / or volume used by the different units. Linking this with the inlet monitoring unit may act as an alarm / alarm system. A red flag may be provided when it is clear that the usage does not correlate with the normal consumption profile. An example is a water leak, but a dripping tap may also be such a behavior that should provide a red flag alert.

[0090] Of course, when multiple units are used simultaneously, this is more difficult, but the system can also learn this behavior over time. As an example, even if the system of the present invention red flags a particular behavior the first time, it may recognize this the second time it occurs if it is informed that the particular event should not have indicated a leak.

[0091] Based on the above, it should be noted that the more units with clearly defined water usage profiles there are, the better the setup of the monitoring system as a whole can be obtained. The software used in the control and / or monitoring system according to the invention will in such cases become fully operational faster, and in other cases will have to learn certain things over time. In this connection, it can also be mentioned that a user links different applications with the control and / or monitoring system according to the invention, and that in a start-up phase, the user preferably runs the applications towards the control and / or monitoring system, so that everything is set up initially. It should be noted that this can be one possible start-up procedure, but other more automatic and direct aspects are also entirely possible.

[0092] Moreover, in accordance with yet another specific embodiment of the present invention, there is provided a method that includes using a water intake monitoring unit according to the present invention to measure water quality over time.

[0093] Detailed description of FIG. 4 in relation to the third aspect of the invention In figure 4 one possible embodiment of an inlet monitoring unit 60 according to the invention is shown, in this case at the cold water intake, the unit 60 being provided with the following functions: - monitoring the actual flow rate (low and high flow rates); - monitoring the ambient and / or water temperature; - Monitoring the conductivity of water, e.g. for big data purposes or for the calibration of specific water user units; - Involvement of shutoff or flow-switching valves in the event of unintended flow; - have a Bluetooth and / or Wi-Fi connection; - having an external power source; - Having a battery operation to provide power to maintain connectivity in the event of a power interruption.

[0094] Provisions according to the third aspect of the invention 1. A water intake monitoring unit (60), comprising: - one or more flow measurement units; - one or more water quality measuring units; a connection unit enabling the intake monitoring unit (60) to be connected to an intake of a house, an apartment property, a hotel or the like; - a water intake monitoring unit (60) including a shutoff valve or a flow switching valve.

[0095] 2. The intake monitoring unit (60) of claim 1, further comprising a Bluetooth connection and / or a Wi-Fi connection.

[0096] 3. The water intake monitoring unit (60) of claim 1 or 2, further comprising an external power source and / or an internal battery.

[0097] 4. The water intake monitoring unit (60) according to any one of claims 1 to 3, wherein the water intake monitoring unit (60) further includes a temperature sensor.

[0098] 5. The water intake monitoring unit (60) according to any one of claims 1 to 4, wherein the water intake monitoring unit (60) further includes a sensor for measuring an ambient temperature.

[0099] 6. A water intake monitoring unit (60) as claimed in any one of claims 1 to 5, wherein the one or more water quality measurement units are at least one sensor measuring the conductivity and / or turbidity of the water and / or are biosensors.

[0100] 7. The intake monitoring unit (60) of any one of claims 1 to 6, wherein the one or more flow measurement units are one low flow meter and one high flow meter.

[0101] 8. The water intake monitoring unit (60) according to any one of claims 1 to 7, wherein the water intake monitoring unit (60) includes a Bluetooth connection and a Wi-Fi connection.

[0102] 9. The water intake monitoring unit (60) according to any one of claims 1 to 8, wherein the water intake monitoring unit (60) includes an external power source and a battery that supplies power to maintain connection when the power source is interrupted.

[0103] 10. A water distribution system intended for domestic water use, the water distribution system comprising at least one water intake monitoring unit (60) according to any one of claims 1 to 9.

[0104] 11. The water distribution system of claim 10, wherein a flow-through boiler is provided to provide a hot water supply from the cold water supply.

[0105] 12. A water distribution system intended for domestic water use, the water distribution system comprising one intake monitoring unit (60) according to any one of claims 1 to 9 for a hot water intake and one intake monitoring unit (60) according to any one of claims 1 to 9 for a cold water intake.

[0106] 13. A method for detecting potential or ongoing leaks, comprising monitoring flow rate behavior over time in a water intake monitoring unit (60) according to any one of claims 1 to 9 linked to water usage in one or more water-using units.

[0107] 14. The method of claim 13, wherein the method includes comparing the particular flow behavior to a flow behavior over time, and sending an alarm to a user if there is a difference in the particular flow behavior compared to the flow behavior over time.

[0108] 15. The method of claim 13 or 14, further comprising measuring the ambient temperature and capable of sending an alarm when there is a risk of frost or a risk of Legionella growth.

[0109] 16. A method comprising using a water intake monitoring unit (60) according to any one of claims 1 to 9 to measure water quality over time.

Claims

1. A leak detector system (1) including a sensor unit (2), The sensor unit (2) includes a moisture sensor (20) and a transmitter, and the leak detector system further includes an enclosure material (3) in which the sensor unit (2) is embedded, The leak detector system (1) further comprises a charging unit (10) including a battery, the charging unit (10) being configured to charge the sensor unit (2), the sensor unit (2) being disposed on a sealed side of a moisture barrier (4) and the charging unit (10) being disposed on another side of the moisture barrier (4) relative to the sensor unit (2); and The moisture sensor (2) is a passive sensor, preferably activated upon contact with moisture, leak detector system (1).

2. The leak detector system (1) according to claim 1, wherein the enclosing material (3) is of buried configuration and is preferably hermetically sealed.

3. The leak detector system (1) according to claim 1 or 2, wherein the transmitter is adapted to transmit a signal through the enclosing material (3).

4. The leak detector system (1) according to any one of claims 1 to 3, wherein the enclosing material (3) is at least part of a moisture barrier (4).

5. 2. The leak detector system (1) according to claim 1, wherein the charging unit (10) and the sensor unit (2) are connected by wires.

6. 2. The leak detector system (1) according to claim 1, wherein the connection between the charging unit (10) and the sensor unit (2) is wireless, preferably applying key charging technology.

7. The leak detector system (1) according to any one of claims 1 to 6, wherein the sensor unit (2) comprises a rechargeable battery or a supercapacitor.

8. The leak detector system (1) according to any one of claims 1 to 7, wherein the leak detector system (1) is configured using Bluetooth Low Energy (BLE) technology.

9. The leak detector system (1) according to any one of claims 1 to 8, wherein the sensor unit (2) is connected to a network bridge configured to forward data transmitted from the transmitter of the sensor unit (2).

10. The leak detector system (1) according to any one of claims 1 to 9, wherein the leak detector system (1) is configured to perform measurements by transmitting signals to the sensor unit (2) and further to transmit measurement data from the transmitter of the sensor unit (2) to a receiver unit.

11. The leak detector system (1) according to claim 10, wherein the receiver unit and the charging unit (10) are one and the same unit.

12. The leak detector system (1) according to claim 10 or 11, wherein the leak detector system (1) is configured to perform measurements by sending a signal to the sensor unit (2) based on the presence of another external event, such as when a shower unit is operated and water is supplied into the system or the like, and further to transmit measurement data from the transmitter of the sensor unit (2) to a receiver unit.

13. The leak detector system (1) according to any one of claims 1 to 12, wherein the charging unit (10) is configured with a wifi connection for transmitting data.

14. The leak detector system (1) according to any one of the preceding claims, wherein the moisture sensor (2) is a Near Field Communication (NFC) sensor.

15. The leak detector system (1) according to any one of the preceding claims, wherein the sensor unit (2) further comprises a temperature sensor.

16. The leak detector system (1) according to any one of claims 1 to 15, wherein the moisture sensor (2) is arranged on a sealed side of a moisture barrier (4) in the vicinity of a floor drain unit (5).

17. The leak detector system (1) according to any one of the preceding claims, wherein the sensor unit (2) comprises one or more sensor wires.

18. 18. The leak detector system (1) according to claim 17, wherein the one or more sensor wires are arranged around a supply tube.

19. The leak detector system (1) according to any one of the preceding claims, wherein a protective holder (6) is arranged between the moisture sensor (20) and the surrounding material (3).

20. The leak detector system (1) according to any one of claims 1, 4 and 16, wherein the leak detector system (1) is arranged on a floor material (7), such as concrete, and embedded in a screed layer (8), and further comprises the moisture barrier (4) arranged on the screed layer (8).

21. The leak detector system (1) according to any one of the preceding claims, wherein the leak detector system (1) comprises at least two moisture sensors (2).

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