Abstract: Various embodiments include a scattered light smoke detector comprising: a two-color LED for emitting light of a first wavelength and a second wavelength; a photosensor spectrally matched with said two-color LED; and a control unit connected to the two-color LED and to the photosensor. The control unit is configured to control the two-color LED to emit light of the first wavelength or the second wavelength and to detect a photosensor signal of the photosensor. The control unit is further configured to analyze the photosensor signal for a first scattered radiation intensity and a second scattered radiation intensity allocated respectively to the first wavelength and the second wavelength. There is a polarizer optically connected upstream of the photosensor or downstream of the two-color LED. The polarizer polarizes light passing through at different intensities in dependence upon the respective wavelength of said light.

Abstract: In order to detect movements of objects and/or living beings in a radio range, which enables easily with a minimum of hardware complexity an automated movement detection based on a Single-Sensor, it is proposed to: Collect as input data for the movement detection based on received radio signals of an intended or unintended communication between a transmitting radio terminal being mobile or fixed and a receiving local fixed radio device in the radio range a set of “Channel State Information”-values, determine a change in the received radio signals, which are derived from the facts that the movement influences the transmitted radio signal in the radio range based on the collected CSI-values by the indication of a statistical parameter value, and assess on the basis of the statistical parameter value a “chaos index” value until the “chaos index” value in accordance with a threshold check provides a reliable statement.

Abstract: Various embodiments include a gateway comprising a communication component configured for data communication with a central cloud service. The communication component is configured to send a verification message to the central cloud service to check the operational readiness of a communication connection between the gateway and the central cloud service. The verification message comprises payload information from further components of the gateway.

Abstract: Method and arrangement for the output of location-specific information, in particular in buildings, on a mobile communication terminal of a user, wherein the location position of the mobile communication terminal is determined; and wherein location-specific information is provided as a function of the location position on the mobile communication terminal by means of a server connected via data technology with the mobile communication terminal and configured accordingly.

Abstract: This disclosure describes an infrastructure management system and method for identifying risk potentials within the infrastructure or for the infrastructure. A dedicated sensor system for identifying risk potentials is provided within the infrastructure or for the infrastructure. A gateway (for example an interface) is configured to receive sensor values that originate from sensors of mobile devices that are temporarily located within the infrastructure or within a defined range (radius) from the infrastructure. A processing unit (for example a server) is configured to receive the sensor values that are reported by the dedicated sensor system and to receive the sensor values of the mobile devices that are provided by the gateway and further to analyze the received sensor values in order to identify risk potentials for the infrastructure or within the infrastructure.

Abstract: A method, digital tool, device, and system for detecting movements of objects and/or living beings in a radio range, which enables easily with a minimum of hardware complexity an automated movement detection based on a Single-Sensor, is provided. The method includes collecting as input data for the movement detection based on received radio signals of an intended or unintended communication between a transmitting radio terminal being mobile or fixed and a receiving local fixed radio device in the radio range “Received Signal Strength” values related quantities, determining a change in the received radio signals, which are derived from the facts that the movement influences the transmitted radio signal in the radio range based on the RSS-values related quantities by the indication of a statistical parameter value, and assessing the statistical parameter value until the statistical parameter value in accordance with a threshold check provides a reliable statement for controlling purposes.

Abstract: Various embodiments include a device securing an actuating drive on a duct outer face of an HVAC duct against rotation. The actuating drive includes an actuator for driving an actuation connection about an actuation axis. The actuation connection interacts with a flap arranged in the ventilation duct to set a gaseous volumetric flow. The actuating drive includes a housing with a ledge formed on a bottom side of the housing and surrounding the actuation connection coaxially relative to the actuation axis. The housing bottom side lies opposite the duct outer face. The device may include: a fastening part for fastening to the outer face; and a fork-shaped receptacle formed at an end. The receptacle geometrically matches a radial outer face of the housing ledge such that after lateral sliding onto the outer face of the ledge, the receptacle fixes said ledge and thus the actuating drive against rotation.

Abstract: Various embodiments of the teachings herein include an actuating drive comprising: a drive element; an actuation element; and a restoring spring. The drive element drives the actuation element indirectly about an actuation axis. The actuation element includes a shaft portion concentric to the actuation axis and extends at least partially circumferentially. The restoring spring includes a wound flat spring providing a restoring torque on the actuation element, acting tangentially on the shaft portion, and a free spring end tangentially fastened to the shaft portion. The free spring end is radially externally disposed with respect to the spring axis and fastened tangentially to the shaft portion. The spring is mounted rotatably so the spring axis is radially spaced apart from the actuation axis and aligned parallel to the actuation axis.

Abstract: Various embodiments include an actuator comprising: a motor; a transmission; an actuating connection; a first motor line and second motor line and a ground line. The motor is driven in a first or second direction by a motor voltage applied to the first or second motor line. There is also a motor control unit comprising a signal evaluation unit and a downstream actuating device for the motor, and a voltage supply unit to provide, from the first and/or second motor voltage, a supply DC voltage for a power supply of the motor control unit. The signal evaluation unit produces, for the duration of the application of the first and/or second motor voltage to the first and second motor line, associated actuating signals. The motor control unit electrically controls the motor in the associated first or second direction of rotation on the basis of actuating signals.

Abstract: Various embodiments include a site controller comprising: a processor; a memory storing a parametrized model for control of a HVAC system; a sensor interface connected to a first sensor; an actuator interface connected to a first actuator; and a cloud interface connected to a remote controller. The processor is configured to: read a first set of sensor signals from the first sensor; process the first set of signals into a set of measured values; transmit the measured values to the remote controller; in response, receive a set of model parameters from the remote controller; read the parametrized model from the memory; read an additional sensor signal from the first sensor; compute an actuator setting signal from the additional signal using the parametrized model and the set of model parameters; and transmit the actuator setting signal to the first actuator.

Abstract: Various embodiments of the teachings herein include a resource scheduling method comprising: receiving data to be processed collected by a sensor in an Internet of Things system; determining a processing priority of the data to be processed; predicting, according to the determined processing priority, a computing resource amount and duration required for processing the data to be processed; and scheduling a computing resource of an edge computing device in the IoT system according to the predicted computing resource amount and duration to process the data to be processed.

Abstract: A danger detector, for example a flame detector, includes an alarm housing with an alarm cover. The housing part of the alarm cover is permeable to heat radiation in the central infrared range. A non-contact, optical heat radiation sensor which is sensitive to the incoming heat radiation and optically oriented to the housing part is arranged in the alarm housing. A processing unit for further processing a sensor signal emitted by the heat radiation sensor is mounted downstream of the heat radiation sensor. The processing unit is designed to monitor the signal emitted by the sensor with respect to significant fluctuations or flicker frequencies for open flames and to determine, based on a direct component of the signal emitted by the sensor, a temperature value for the ambient temperature in the surroundings of the danger detector. The heat radiation sensor may be a thermopile or a bolometer.

Abstract: Various embodiments include an actuator comprising: a power supply connection; a processor for controlling and monitoring the actuator; a peripheral unit with power consumers; and a connection socket connected to a serial interface of the processor. The processor receives primary configuration data from an operating device connected to the connection socket and/or sends secondary configuration data and/or diagnostic data to the operating device. A respective current fed in externally feeds exclusively into a common connection. There is a voltage regulator for supplying power to the processor and a switch configured to be activated by the processor for supplying power to the peripheral unit, both connected downstream of the common connection. The processor activates the switch to close only if the voltage detected at a feed-in point of the power supply connection exceeds a first limit or if the voltage detected at the common connection exceeds a second limit.

Abstract: Various embodiments of the teachings herein include a building object detection system for a building comprising: a scanner to generate scan data; an artificial intelligence module implemented on a processing unit trained to process the scan data to detect and automatically classify building objects installed within the space; a database to store different types of building objects and associated installation rules; and a verification unit to verify the classification of a building object based on compliance with the installation rules. The AI is trained using labeled training data comprising labels derived from scan data of previously scanned building objects provided with associated object identifiers. A second set of installation rules is loaded from the database based at least in part on a location of the building.

Abstract: Various embodiments include a method of controlling heat exchange via a terminal unit of a terminal-side circuit of a system for HVAC with a source-side circuit coupled to the terminal-side circuit comprising: reading a terminal-side supply temperature signal; producing a supply temperature from the terminal-side supply temperature signal; estimating a percentage demand signal as a function of the supply temperature; estimating an actual demand for power by rescaling a value of maximum available power by the percentage demand signal; comparing the actual demand for power to the value of maximum available power; and if the actual demand for power exceeds the value of maximum available power: producing a first flow control signal based on the value of maximum available power; and controlling a flow of a fluid through the source-side circuit based on the first flow control signal.

Abstract: Various embodiments of the teachings herein include an axle receiving arrangement for fixing to an axle comprising multiple components movable in opposite directions with respect to an axle received by the axle receiving arrangement. The multiple components are parts of a tensioning side or compressing side of the axle receiving arrangement. There is a tension bracket movable on the tensioning side, the tension bracket including a thread in engagement with a thread of a nut. The thread of the tension bracket on a tension bracket upper part, starting on an underside of the tension bracket upper part and terminating below an upper side of the tension bracket upper part. A circumferential annular gap on the upper side of the tension bracket upper part is defined by the termination of the thread below the upper side.

Abstract: Various embodiments of the teachings herein include an axle receiving arrangement with components that can move in opposite directions and in each case move in the direction of an axle that is received by the arrangement. These components can be part of a tensioning side or a compressing side of the arrangement. The arrangement has at least two components that can be combined with one another and one of said components is in contact with the axle surface participates in a positive-locking and non-positive locking fixing of the axle by the axle receiving arrangement and the other of said components ensures the movability in the direction of the axle. The components in the combined state enclose a gap between on the one hand convex and on the other hand concave curved surfaces.

Abstract: Various embodiments include a method for operating a hazard notification system including a plurality of notification appliances connected to a bus system, each notification appliance having a signal element and an activatable energy consumption simulation unit comprising: receiving a switchover telegram at each notification appliance; attaching the respective energy consumption simulation unit of each notification appliance to the bus system in place of the signal element; measuring an energy consumption resulting in the bus system due to the activation of each energy consumption simulation unit in the course of a load test; comparing the measured energy consumption with predefined comparison values; and generating an alarm signal or a fault message as a function of the result of the comparison.

Abstract: Various embodiments include a fire or smoke alarm comprising: a detection arrangement arranged within an alarm housing; and an alarm-housing cover having, on an inner side, a plurality of housing ribs pointing radially in the direction of an alarm dome. The detection arrangement comprises a level divider with an opening. A maximum possible spacing between two points on a peripheral line of the opening or on a common peripheral line of a plurality of openings is larger than a diameter of the alarm dome. The peripheral line of the opening or the common peripheral line of a plurality of openings in the level divider extends beyond the alarm dome of the alarm-housing cover on all sides.

Abstract: Various embodiments include a device comprising: two connectors for powering the device; a controller to operate an HVAC system; a memory; a transponder controller and an antenna for near field communication; and a transponder memory storing a configuration version and an address list. Firmware in the transponder memory includes instructions for the controller to: connect to a handheld device; determine an address thereof; determine whether the address is on the list; if so: receive initial configuration data from the handheld device, and store it in the transponder memory. There is firmware in the device memory telling it to: connect to the transponder controller; read a device version; read the configuration version in the transponder memory; determine whether the configuration version is compatible with the device version; and if so, transfer the initial configuration data to the memory, and thereafter use the initial configuration data in operation of the system.