Abstract: An apparatus or an add-on module for a, in particular mobile, device, is disclosed. In an embodiment, the device to be localized or the add-on module uses a measuring unit to measure, via suitable sensors, a local electromagnetic field distribution generated by a given infrastructure. An instantaneous position of the add-on module or of the device equipped therewith is then determined by comparing the measured field distribution with a specified map. In order to facilitate tracking of the add-on module or of the device, the measured field distribution and/or the determined position can be sent via a wireless data connection to a server unit.

Abstract: An apparatus or an add-on module for a, in particular mobile, device, is disclosed. In an embodiment, the device to be localized or the add-on module uses a measuring unit to measure, via suitable sensors, a local electromagnetic field distribution generated by a given infrastructure. An instantaneous position of the add-on module or of the device equipped therewith is then determined by comparing the measured field distribution with a specified map. In order to facilitate tracking of the add-on module or of the device, the measured field distribution and/or the determined position can be sent via a wireless data connection to a server unit.

Abstract: A method of an embodiment includes obtaining first measurement data indicative of one or more environmental conditions of field devices during a shipment of the field devices; obtaining second measurement data indicative of one or more operational conditions of the field devices during an operation of the of field devices; and performing a comparison of the first measurement data and the second measurement data to obtain correlation data indicative of an impact of the one or more environmental conditions on the operation of the field devices.

Abstract: The present invention provides a flapping apparatus with a large flapping angle. The flapping apparatus includes a frame, a drive motor, a slider, connection links, actuating links and wings. The frame includes I-shaped plates which face each other in parallel, and coupling rods which couple the opposite corners of the upper ends of the I-shaped plates to each other. The drive motor is fastened to the frame such that a rotating shaft thereof is disposed inside the frame. The slider includes lateral bars which are reciprocated upwards and downwards. The connection links are rotatably coupled at first ends thereof to both ends of the lateral bar. The actuating links are rotatably coupled at first ends thereof to second ends of the connection links. The actuating links are rotatably coupled at second ends thereof to the coupling rods. The wings are respectively attached to the upper surfaces of the actuating links.

Abstract: The present invention provides a flapping apparatus with a large flapping angle. The flapping apparatus includes a frame, a drive motor, a slider, connection links, actuating links and wings. The frame includes I-shaped plates which face each other in parallel, and coupling rods which couple the opposite corners of the upper ends of the I-shaped plates to each other. The drive motor is fastened to the frame such that a rotating shaft thereof is disposed inside the frame. The slider includes lateral bars which are reciprocated upwards and downwards. The connection links are rotatably coupled at first ends thereof to both ends of the lateral bar. The actuating links are rotatably coupled at first ends thereof to second ends of the connection links. The actuating links are rotatably coupled at second ends thereof to the coupling rods. The wings are respectively attached to the upper surfaces of the actuating links.