Abstract: A water meter (1) comprising: a volume flow-measuring device (2) by means of which a volume flow of a liquid flowing through a water pipe (3) can be measured from outside the water pipe (3); and a clamping device (4) by means of which the water meter (1) can be clamped to the water pipe (3). In addition, a method for attaching a water meter (1) to a water pipe (3).

Abstract: Device (1) for detecting a liquid leakage, wherein a leakage detection function of the device (1) is lockable so that the leakage detection function is protectable against unauthorized use.

Abstract: Method for monitoring a water supply network (1) in an infrastructure object (2) having water pipes (3) and at least one measuring device (4) for monitoring the water supply network (1) that contains at least the following steps: a) determining at least one structure parameter (5) which characterizes at least one structure of the infrastructure object (2) or the water supply network (1); b) determining at least one water parameter (6) using the at least one measuring device (4), and c) determining at least one probability value (7) for water damage, wherein at least one structure parameter (5) and the at least one water parameter (6) are taken into consideration.

Abstract: The present invention relates to a hygiene system comprising at least one sanitary fitting (1), wherein the sanitary fitting has at least one fluid outlet (2.1, 2.2) for dispensing at least one fluid, at least one camera (3) for recording the hands (6) of a user, at least one optical display (4) and a control (5), wherein the control is connected to the camera (3) and the optical display (4).

Abstract: A method for detecting a leak, having at least the following steps: a) capturing a flow volume of a liquid through a liquid line during a multiplicity of liquid removal processes; b) comparing the flow volumes of the liquid in the respective liquid removal processes with an alarm value; c) outputting an alarm signal if the flow volume of the liquid in a liquid removal process exceeds the alarm value; d) adapting the alarm value on the basis of a frequency of the occurrence of the flow volumes of the liquid in the liquid removal processes above an adaptation value.

Abstract: A water meter (1) comprising: a volume flow-measuring device (2) by means of which a volume flow of a liquid flowing through a water pipe (3) can be measured from outside the water pipe (3); and a clamping device (4) by means of which the water meter (1) can be clamped to the water pipe (3). In addition, a method for attaching a water meter (1) to a water pipe (3).

Abstract: Method for monitoring a water supply network (1) in an infrastructure object (2) having water pipes (3) and at least one measuring device (4) for monitoring the water supply network (1) that contains at least the following steps: a) determining at least one structure parameter (5) which characterizes at least one structure of the infrastructure object (2) or the water supply network (1); b) determining at least one water parameter (6) using the at least one measuring device (4), and c) determining at least one probability value (7) for water damage, wherein at least one structure parameter (5) and the at least one water parameter (6) are taken into consideration.

Abstract: A method for monitoring a water supply network (1) with a water distribution system (2), water channels (3) and a building's water connections (4) that includes at least the following steps: a) capturing at least one local water condition parameter in areas of a plurality of a building's water connections (4); b) capturing at least one central water condition parameter in at least one area of a water channel (3) or the water distribution device (2); c) comparing the water condition parameters with one another; and d) detecting at least one fault (5) with respect to at least one of the water channels (3) on the basis of the comparison according to step c).

Abstract: Device (1) for detecting a liquid leakage, wherein a leakage detection function of the device (1) is lockable so that the leakage detection function is protectable against unauthorized use.

Abstract: A method and apparatus for detecting users of a sanitary installation, with which at least one sanitary sensor system is associable. At least one use profile is detected for at least one user of the sanitary installation via the at least one sanitary sensor system in a first timeframe. The specified use profile is associated with at least one specified user in a database. The use profile of the sanitary installation is monitored by the at least one sanitary sensor system in a second timeframe. A specific use profile of at least one specified user is identified from the use profile of the sanitary installation, an individual use of at least one specified user is ascertained from the use profile of the sanitary installation, and/or an ascertained individual use of at least one specified user is stored in the database.

Abstract: A method for detecting a leak, having at least the following steps: a) capturing a flow volume of a liquid through a liquid line during a multiplicity of liquid removal processes; b) comparing the flow volumes of the liquid in the respective liquid removal processes with an alarm value; c) outputting an alarm signal if the flow volume of the liquid in a liquid removal process exceeds the alarm value; d) adapting the alarm value on the basis of a frequency of the occurrence of the flow volumes of the liquid in the liquid removal processes above an adaptation value.

Abstract: A method for determining an energy efficiency of a piece of real estate, which includes: determining a volume flow and a first temperature of a heat transfer medium, which flows from at least one heating device to at least one heat transfer device; determining at least one second temperature in the piece of real estate with the aid of at least one temperature sensor; and calculating an energy efficiency of the piece of real estate based on the volume flow, the first temperature and the second temperature.

Abstract: A method of locating a leak on at least one liquid line having at least the following steps: closing the at least one liquid line with a first valve; opening a second valve so that a signal gas flows from a signal gas source via the second valve into the at least one liquid line, and from the at least one liquid line out of the leak. A device for locating a leak on at least one liquid line is also provided.