Siemens Schweiz

The invention concerns a building air cooling system that comprises a thermoelectric heat pump (10) with a cold plate (11) and a hot plate (12), an indoor heat exchanger (3) for indoor air at the cold plate (11), a water duct (8) at the hot plate (12), an entry water conduit (50) at the water entry (30) of the water duct (8) and an exit water conduit (51) at the water exit (31) thereof. The entry water conduit (50) is configured flow-capably to connect to a plumbing system (40, 41) of a building. The exit water conduit (51) is configured to dispose of heat from the indoor heat exchanger (3) towards an outdoor environment. A flow-influence device (34, 35, 36, 37, 38) that is configured to influence the flow through the water duct (8) and to do so in the entry water conduit (50), the water duct (8) or the exit water conduit (51). The invention also concerns a method for installing suchlike building air cooling systems. The invention further concerns a room air cooling unit that comprises a thermoelectric heat pump (10) in between a heat-conductive foam (3) and a water duct (8), which are fixedly connected with respect to each other.

Apparatus and methods unobtrusively inspect an audio device (100). A signal generator (270) receives a pulse signal (272) from a controller (250). A low pass filter circuit (308, 310) creates a first signal (312) in response to the pulse signal (272). The first signal (312) has a fade-in and fade-out discharging phase (436, 446) corresponding to upper and lower voltages of the pulse signal (272), respectively. A transistor (316) creates a second signal (318) in response to the first signal (312). The second signal (318) is a modified version of the first signal (312) that includes a leveled-off portion in the fade-in charging phase (432, 442, 434, 444). The audio device (100) creates a third signal (320) in response to the second signal (318). The third signal (320) is a resulting version of the second signal (318) subjected to an audio element (210) of the audio device (100). The controller (250) determines whether the third signal (320) indicates a fault condition of the audio device (100) in response to subjecting the second signal (318) to the audio element (210) of the audio device (100).

The invention relates to a method for providing a building equipment model (12), wherein the method comprises the following steps performed by a building equipment modeling device (10): Receiving building equipment training data (18) comprising sensor variables (20) of respective sensor devices (16) of a building equipment (14) and index variables (22) indicating a state of the building equipment (14); Performing, for predefined targets (28) of the building equipment (14) a respective submodel generation procedure, the respective submodel generation procedure. Generating the submodel (26) representing the predefined target (28) of the building equipment (14) based on the training set (30) for the respective predefined part in a predefined training procedure; and combining the submodels (26) of each of the predefined parts of the building equipment (14) to a building equipment model (12).

The invention relates to a method for providing at least one document (12, 14) related to at least one device (16) of a predetermined region (18) for a user (20) by an electronic computing device (10), comprising the steps of: providing the at least one document (12, 14) by the electronic computing device (10); analyzing the document (12, 14) depending on a relation to the at least one device (16) and depending on an affiliation to the region (18) by the electronic computing device (10); linking the at least one document (12, 14) to the at least one device (16) and to the at least one region (18) depending on the analyzation by the electronic computing device (10); receiving a search query (26) for the at least one device (16) and/or region (18) of the user (20) by an input device (22) of the electronic computing device (10);- linking the search query (26) to the at least one document (12, 14) by the electronic computing device (10); and providing the linked document (12, 14) for the user (20) by an output device (24) of the electronic computing device (10). Furthermore, the present invention relates to a computer program product, a computer-readable storage medium, as well as an electronic computing device (10).

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