Abstract: In a method for measuring the wing edge of a vehicle on a test bed, the test bed has a coordinate system in which the Z-axis is the vertical axis, the X-axis is an axis on the test bed extending in the horizontal plane in the longitudinal direction of a vehicle located on the test bed for testing, and the Y-axis is an axis of the test bed extending perpendicular to the X-axis in the horizontal plane. In determining the position and orientation of the wing edge, a light pattern projected onto a vehicle by an illumination unit is moved and recorded by two imaging units. A subset for evaluation is formed from the 3D point clouds determined stereophotogrammetrically from the recordings.

Abstract: An antenna (100) comprising a plurality of like antenna elements (10) is disclosed. Each antenna element comprises: a radiating element (12, 13); a feed point (14); and a short to ground (16). The elements are spaced apart in different positions and oriented in different directions. Also provided are a GNSS receiver module (150) comprising the antenna, and a method of manufacturing the antenna. The antenna may be used, in particular, for receiving a circularly polarised signal.

Abstract: A 3D printer comprising a resin vat, a component carrier, a transport box for depositing the component carrier, a transport device for removing the component carrier from the transport box and transporting it into the resin vat, and for moving the component carrier downward and upward in the resin vat The transport device has translatory axes in the vertical and horizontal directions, each of which can be driven independently by a motor, the transport device having a locking device that detachably connects the component carrier. The locking device, during the downward movement along the vertical translatory axis, reaches a specific position (P) by the drive of the respective motor, at which a stop located on the vertical translatory axis sets a coupling element in motion. A spring-loaded locking pin arranged in contact with the coupling element is immersed in a bayonet opening of the component carrier by the movement.

Abstract: The disclosure relates to an antenna assembly, a receiver assembly, communication methods for the same and a system. The antenna assembly comprises a signal line for connecting the antenna assembly to a single line communication cable. The antenna assembly further comprises an antenna, arranged to receive a radio frequency signal and to apply the radio frequency signal to the signal line of the antenna assembly. The antenna assembly further comprises an antenna multiplexer, arranged to separate a superimposed signal from the radio frequency signal on the signal line, wherein the superimposed signal comprises a supply voltage for the antenna assembly and a communication signal. The antenna assembly further comprises an antenna controller, arranged to receive the communication signal and to perform a monitoring and/or a control operation in response to the communication signal.

Abstract: An electro-hydraulic steering system (1) comprises a hydraulic steering actuator (11) and a hydro-mechanical steering unit (6) for actuating the hydraulic steering actuator in response to a steering demand from a steering wheel (2) connected to the hydro-mechanical steering unit by a steering shaft (3). An electric motor (5) is operative to apply a torque to the steering shaft and is controlled to provide a haptic steering torque feedback to a user through the steering wheel. The motor (5) is controlled to provide haptic steering torque feedback during a dead band range of movement of the steering member (2) before the hydro-mechanical steering unit begins supplying fluid to the steering actuator. The motor (5) may be controlled to provide a haptic steering torque feedback that follows a predetermined profile compensating for the effects of a spring in the hydro-mechanical steering unit which opposes movement of the steering member.

Abstract: A method is provided for calibrating a vehicle mounted GNSS antenna. The method comprises measuring a response of the antenna, while the antenna is mounted on the vehicle. Based on the measured response, data characterizing a group delay variation of the antenna is calculated. The data may be used to correct ranging measurements derived from GNSS signals received via the vehicle-mounted antenna. Alternatively, or in addition, the data may be used in estimating the integrity of a position fix.

Abstract: A method is provided for calibrating a vehicle-mounted GNSS antenna. The method comprises measuring a response of the antenna, while the antenna is mounted on the vehicle. Based on the measured response, data characterizing a group delay variation of the antenna is calculated. The data may be used to correct ranging measurements derived from GNSS signals received via the vehicle-mounted antenna. Alternatively or in addition, the data may be used in estimating the integrity of a position fix.

Abstract: A broadcast device (10) for wirelessly broadcasting information pertaining to a first aircraft (1) comprises a positioning device (11) configured to determine a position (PI) of the broadcast device (10). The position comprises a latitude, a longitude, and an altitude. A control unit (12) of the broadcast device (10) is configured to receive this position (PI) via an internal bus. Further, the broadcast devices (10) maintains a list of maximum supported foreign protocol versions (VER2_MAX, VER3 MAX) of nearby foreign broadcast devices (20, 30). The control unit (12) then determines a packet protocol version (VER1) of a data packet (D1) which is dynamically depending on these maximum supported foreign protocol versions (VER2_MAX, VER3_MAX). The data packet (D1) is then broadcasted by means of a radio transmitter (13) of the broadcast device (10). Thus, even older foreign broadcast devices can understand at least some of the broadcasted data packets (D1).

Abstract: A broadcast device (10) for wirelessly broadcasting information pertaining to a first aircraft (1) comprises a positioning device (11) configured to determine a position (P1) of the broadcast device (10). The position comprises a latitude, a longitude, and an altitude. A control unit (12) of the broadcast device (10) is configured to receive this position (P1) via an internal bus. Then, the control unit (12) truncates the latitude and the longitude and generates a data packet (DI) based on the truncated latitude, the truncated longitude, the altitude, and an identifier (ID1) of the broadcast device (10). Further, the data packet (D1) comprises a pair c1=(e1, m1) with an exponent (e1) being a natural number and with a mantissa (m1) being a natural number. This pair (c1) is indicative of a value (v1). The data packet (D1) is then wirelessly broadcasted by means of a radio transmitter (13) of the broadcast device (10).

Abstract: A system is disclosed comprising: (a) apparatus for mounting on personal protective equipment (PPE) of a user located on premises in a hazardous environment. The apparatus is configured for providing data monitoring and communication of the user for remote review, analyses and/or user deployment and navigation guidance in hazardous environments. The apparatus includes a user tracking device for tracking location of the user on premises comprising: an inertial measurement unit for measuring and reporting acceleration, velocity and position data of the user on premises; an infrared camera for creating image data as the user moves through the premises; a GPS receiver; an ultrasound sensor; and a microcontroller unit for processing and transmitting data from the inertial measurement unit, ultrasound sensor and GPS remotely; and (b) a mounting accessory for mounting the user tracking device to the user's personal protective equipment.

Abstract: An antenna includes an optically transparent substrate layer having a first surface and an opposing second surface; a radiating element having a first mesh structure and disposed on the first surface of the substrate layer; a ground plane having a second mesh structure formed on the second surface of the substrate layer; at least two feed lines configured to connect the radiating element to an external circuit; and at least two stubs connected to the radiating element.

Abstract: An antenna includes an optically transparent substrate layer having a first surface and an opposing second surface; a radiating element having a first mesh structure and disposed on the first surface of the substrate layer; a ground plane having a second mesh structure formed on the second surface of the substrate layer; at least two feed lines configured to connect the radiating element to an external circuit; and at least two stubs connected to the radiating element.

Abstract: A method for producing non-human conditionally immortalized mast cell progenitors comprises: introducing a nucleic acid molecule comprising an inducible homeobox gene into myeloid progenitor cells, wherein said myeloid progenitor cells are derived from a non-human animal and are engineered to express a heterologous high-affinity IgE receptor alpha subunit (Fc?RI?); and selecting for cells which contain the nucleic acid molecule. The non-human conditionally immortalized mast cell progenitors may be cultured to obtain differentiated mast cells. The mast cells find utility in assays for the determination of IgE mediated allergies.

Abstract: An antenna is provided comprising a substrate formed of a dielectric material. The substrate has an upper surface, a lower surface, and one or more side surfaces connecting the upper surface with the lower surface. The antenna further comprises a conductive patch on the upper surface of the substrate; a first conductive strip on one of the one or more side surfaces; and a second conductive strip on one of the one or more side surfaces. The first and second conductive strips are arranged at opposing sides of the conductive patch. The antenna further comprises a ground plane, wherein the first and second conductive strips are galvanically isolated from the conductive patch and galvanically connected to the ground plane.

Abstract: An antenna includes an optically transparent substrate layer having a first surface and an opposing second surface; a radiating element having a first mesh structure and disposed on the first surface of the substrate layer; a ground plane having a second mesh structure formed on the second surface of the substrate layer; at least two feed lines configured to connect the radiating element to an external circuit; and at least two stubs connected to the radiating element.

Abstract: An antenna includes a substrate layer having a first surface and an opposite second surface, the second surface having a metallization layer; a conductive layer disposed on the first surface of the substrate layer; a slot formed in the conductive layer, the slot including a first part and a second part that are symmetric to each other about a diagonal of the conductive layer; and at least one feed point on the conductive layer and spaced from the slot by a predetermined distance.

Abstract: Methods and apparatus for detecting a potential fault in a positioning device, the apparatus including at least one memory for storing instructions, and at least one controller configured to execute the instructions to perform operations including obtaining information about a received signal received by the positioning device, the information including at least one of a control parameter or an estimation of bias based on the received signal; determining whether the potential fault is detected, based on the information and a detection threshold; and in response to a determination that the potential fault is detected, generating an indication that the potential fault is detected.

Abstract: An antenna (100) comprising a plurality of like antenna elements (10) is disclosed. Each antenna element comprises: a radiating element (12, 13); a feed point (14); and a short to ground (16). The elements are spaced apart in different positions and oriented in different directions. Also provided are a GNSS receiver module (150) comprising the antenna, and a method of manufacturing the antenna. The antenna may be used, in particular, for receiving a circularly polarised signal.

Abstract: The disclosure relates to an antenna assembly, a receiver assembly, communication methods for the same and a system. The antenna assembly comprises a signal line for connecting the antenna assembly to a single line communication cable. The antenna assembly further comprises an antenna, arranged to receive a radio frequency signal and to apply the radio frequency signal to the signal line of the antenna assembly. The antenna assembly further comprises an antenna multiplexer, arranged to separate a superimposed signal from the radio frequency signal on the signal line, wherein the superimposed signal comprises a supply voltage for the antenna assembly and a communication signal. The antenna assembly further comprises an antenna controller, arranged to receive the communication signal and to perform a monitoring and/or a control operation in response to the communication signal.

Abstract: An antenna is provided comprising a substrate formed of a dielectric material. The substrate has an upper surface, a lower surface, and one or more side surfaces connecting the upper surface with the lower surface. The antenna further comprises a conductive patch on the upper surface of the substrate; a first conductive strip on one of the one or more side surfaces; and a second conductive strip on one of the one or more side surfaces. The first and second conductive strips are arranged at opposing sides of the conductive patch. The antenna further comprises a ground plane, wherein the first and second conductive strips are galvanically isolated from the conductive patch and galvanically connected to the ground plane.