Abstract: Managing visitor access to resources within a physical area includes a mobile user device of a visitor associated to the physical area with a secure component having stored thereon a credential for authorizing the mobile user device to communicate transactions with other components of the system that are remotely located from and coupled with the mobile user device. The components include data structures that define a plurality of entities and associate attributes with the entities corresponding to access to the resources. A first application manages access of the visitor to the resources based on the data structures and information communicated by the mobile user device to the components in transactions that are authorized using the at least one credential. The credential may be a block chain credential and the transactions may be block chain transactions. The mobile user device may be locally coupled to the secure component.

Abstract: A method for optical distance measurement involves transmitting measuring pulses by means of a transmission matrix having a plurality of transmission elements, reflecting transmitted measuring pulses to at least one object, and receiving reflected measuring pulses by a reception matrix. The reception matrix includes a plurality of reception elements each having a plurality of reception sub-elements. The method involves monitoring reception rates of reception sub-elements of the reception matrix for determining a misalignment between the transmission matrix and reception matrix, wherein the transmission matrix and reception matrix define a visual field, and wherein the method is used for the navigation of a vehicle. Monitoring takes place while a vehicle is traveling, wherein the method does not involve the conscious introduction of measuring objects into the visual field for determining a misalignment.

Abstract: In one embodiment, a layer application generates navigation-related data based on observations associated with vehicles. In operation, the layer application generates an attribute based on a first observation associated with a vehicle and an observation type. The layer application then compares the attribute to an existing road database to generate a dynamic layer. Subsequently, the layer application causes the dynamic layer to be transmitted to a navigation subsystem. After receiving the dynamic layer, the navigation subsystem performs navigation operation(s) based on the road database and the dynamic layer. Because the layer application may receive and operate on real-time observations, providers of road databases may produce dynamic layers at a frequency that enables navigation applications to continually provide accurate navigation data.

Abstract: Using a mobile user device of a user to control access to a thing located within a physical area and having a physical locking mechanism includes determining whether a current location of the mobile user device is within a predefined proximity to the thing, accessing, from a secure component proximal to the mobile user device, a credential for authorizing the mobile user device to communicate block chain transactions with one or more other remotely located components, securely accessing one or more first attributes associated with the thing, and locking or unlocking the locking mechanism based at least in part on the one or more first attributes. The credential may be a block chain credential. Securely accessing the one or more first attributes may include accessing one or more blocks of a blockchain on the one or more remotely located components using the credential.

Abstract: An aircraft lighting device includes a circuit board; an LED soldered to the circuit board; an optical element supported by the circuit board and positioned for re-directing at least part of the light emitted by the LED; a magnetic coupling between the circuit board and the optical element; and at least one surface mounted device included in the optical element, such surface mounted device including a pin soldered to the circuit board.

Abstract: Managing a visitor outside of a physical area includes remotely registering the visitor to an access system, installing an application on a mobile user device of the visitor, the application being authorized to access and communicate with the access system, the visitor entering personnel credentials to authorize use of the application while the visitor is outside of the physical area, and, in response to the visitor authorizing use of the application, the application and the access system exchanging data containing information about the visitor, remote executed activities of the visitor, remote data, and/or information about localization of the user device. The application may exchange data with the access system using a RESTful API. Data may be formed in a blockchain prior to being exchanged between the mobile user device and the access system. The access system may add third party information to complement and improve scheduling of the visitor.

Abstract: The present invention relates to a transfer arrangement for transferring sausage-shaped products, like sausages, to a rod-like element, like a smoking rod, provided in a loading position in a hanging line, each of the sausage-shaped products contain a flowable filling material in a tubular or bag-shaped packaging casing provided with a suspension element, like a suspension loop, through which the sausage-shaped products can be suspended on the rod-like element.

Abstract: An adjustable mirror assembly comprising a mirror, a support, a leaf spring element biased between the support and a planar reverse side of the mirror, said leaf spring element generating a spring force, as well as at least two adjusting units mounted in the support and acting on the mirror in opposition to the spring force. The leaf spring element is mounted to the reverse side of the mirror via at least one mirror mounting point by a substance-to-substance bond and to the support via at least one support mounting point. The spring force is directed toward the support.

Abstract: A method for optical distance measurements is suggested which comprises carrying out Radar measurements, building a grid map comprising a plurality of elements based on the Radar measurements, extracting information about the dynamic state of each element and assigning the information to the respective element. The method further comprises carrying out Lidar measurements resulting in a Lidar point cloud and associating the Lidar point cloud with the grid map.

Abstract: A residual current sensor for a residual current protective device for monitoring an electrical load for a vehicle is presented. The residual current sensor has an electrical circuit for identifying a test signal in an electrical forward conductor, which forward-conducts from a control apparatus for controlling the electrical load to the electrical load the test signal represents a request to perform a self-test of the residual current sensor. The residual current sensor also has a residual-current-generating apparatus for generating a test residual current in an electrical reverse conductor, which conducts away from the electrical load, in response to the identified test signal. The residual current sensor furthermore has a measuring apparatus for measuring a differential current between a first electric current in the electrical forward conductor and a second electric current in the electrical reverse conductor.

Abstract: The present invention provides a method and system with a plurality of voice command devices, wherein each of the voice command devices comprises a processor unit, a transceiver coupled to the processor unit and configured to couple to a network, one or more microphones, each configured to capture an audio signal, and at least one loudspeaker, and wherein the processor unit is configured to detect a speech signal in the captured audio signals; upon detection of a speech signal, transmit directivity information with respect to the one or more microphones to a software as a service, SaaS, provider via the network using the transceiver; and receive directivity information with respect to the plurality of voice command devices from the SaaS provider via the network using the transceiver.

Abstract: A switch cabinet for an exhaust-gas measurement installation includes a cabinet body with two side walls, a ceiling, a floor, a front side and a back wall, a door to close the front side, a measurement gas distributor arranged in the cabinet body with an outlet, a coupling element fastened to the measurement gas distributor to form the outlet, at least one measuring device arranged in the cabinet body with an inlet, and a coupling element fastened to the at least one measuring device to form the inlet. The inlet is connected to the outlet to provide a gas-tight connection. The measurement gas distributor moves relative to the cabinet body so that the coupling element fastened to the measurement gas distributor and forming the outlet can be connected by insertion to the coupling element fastened to the at least one measuring device and forming the inlet.

Abstract: A refrigeration unit such as a refrigerated counter or horizontal deep freezer, having a refrigeration chamber serving to accommodate goods and surrounded by a base group, a front group, and a back group, and having a stack marking device. A reliable monitoring of a stack height to be maintained is achieved by embodying the stack marking device as a monitoring apparatus that operates based on electromagnetic beams, in particular IR radiation, and has a transmitter device that emits the beams, a receiver device that receives the beams, and an evaluation unit that processes their output signals.

Abstract: An agricultural distribution machine that includes a carrier vehicle with a distributor boom that is movable at least about a pivot axis is described. The machine also includes a controlling apparatus that generates a controlling force to move the distributor boom about the pivot axis. A first sensor apparatus detects an angular rate (?) of the distributor boom. The control apparatus implements a first operating mode to hold the distributor boom in a currently set target rotational position in which disturbance torques acting on the distributor boom, resulting from movements of the carrier vehicle about the longitudinal axis, are compensated. In the first operating mode, the control apparatus is configured to regulate the angular rate (?) detected by the first sensor apparatus as a controlled variable to a target value which has an absolute value of between zero and a threshold value (?0).

Abstract: An agricultural distribution machine, such as a field sprayer or a pneumatic fertilizer spreader is described. The agricultural distribution machine includes a carrier vehicle and a distributor boom for spreading material, such as a fertilizer, a plant protection agent, or seed. The boom is indirectly or directly arranged on the carrier vehicle so as to be movable at least about a pivot axis running in the direction of travel. The boom has segments which are pivotable relative to one another about upright axes and/or in a plane arranged perpendicular to the direction of travel of the agricultural distribution machine. The boom includes an acceleration-compensated inclinometer apparatus for determining a rotational position of the distributor boom.

Abstract: Multi-channel audio signal processing includes receiving a left stereo audio signal from a first channel and a right stereo audio signal from a second channel; up-mixing the left and the right stereo audio signals to generate an up-mixed audio signal for a third channel; de-correlating the up-mixed audio signal from the left and the right stereo audio signals to generate a de-correlated up-mixed audio signal; providing the left and right stereo signals and the de-correlated up-mixed audio signal to first, second, and third loudspeakers respectively to generate first, second, and third sound signals, respectively; picking up the first, second and third sound signals with a microphone to generate a microphone output signal; and adaptively filtering the microphone output signal with an acoustic echo canceller based on the left, the right, and the de-correlated up-mixed audio signal to generate an echo compensated microphone signal.

Abstract: An aircraft beacon light for being mounted to an aircraft fuselage includes: a support structure, having a carrier, and a stem for supporting the carrier and for spacing the carrier from the aircraft fuselage; and a lighting system, supported by the support structure, the lighting system having a plurality of light sources, light optics for redirecting at least a portion of the light emitted by the plurality of light sources, and a lens cover, with the plurality of light sources and the light optics being arranged between the carrier and the lens cover; wherein the aircraft beacon light is configured to emit a red-flashing beacon light output in operation.

Abstract: The present disclosure relates to an actuator for controlling a wheelset of a rail vehicle comprising: an axle casing for fastening to an undercarriage or to a wheelset bearing housing of the rail vehicle; a synchronized cylinder that is provided in the axle casing and that comprises a piston surface that has a piston rod passing through the axle casing at each of its two areal sides; and a housing that is movable in accordance with a movement of the synchronized cylinder with respect to the axle casing, wherein a piston spring element that connects a respective piston rod to the housing is arranged at the end of the respective piston rod remote from the piston surface.

Abstract: The application provides an antenna element comprising a circuit board with a transmission line, the transmission line comprising at least a first conductor and a second conductor, a separate 3-dimensional, metallic or metallized ring-shaped structure mounted on a surface of the circuit board, a first galvanic contact between the first conductor and a first part of the separate 3-dimensional, metallic ring-shaped structure, and a second galvanic contact between the second conductor and a second part of the separate 3-dimensional, metallic ring-shaped structure, wherein at least one of the first galvanic contact and the second galvanic contact comprises at least two substantially L-shaped sections and an antenna array comprising several such antenna elements.

Abstract: A band steering method for a wireless network comprising access points, for example legacy access points, is disclosed. The network comprises a first and second radio bands, the wireless access point, and one or more client devices. The method comprises receiving an open authentication request at the wireless access point from the client device on one or more of its radio bands. If the open authentication request is received on the second radio band, the method comprises generating an open authentication response, whereas if the open authentication request is received only on the first radio band, the method comprises generating a delayed open authentication response.