A machine implement includes sensors that measure a force imparted by the machine implement to a structure during a machining process. A sensor array coupled to the structure measures the vibrational response of the structure to the imparted force. Analysis software compares the imparted force to the vibrational response to generate a transfer function for the structure. Based on the transfer function, a tool-path of the machine implement may be adjusted such that the resulting structure has precise vibrational characteristics that substantially comply with a set of design goals for the structure.

A sorting facility for items to be sorted, such as postal items, parcels, packages, baggage, suitcases, etc., includes carrying elements, conveyor paths at which the carrying elements are transported to target positions, to empty the items from a carrying element into a target position, a facility controller controlling movement of the carrying elements along the conveyor paths and emptying at the target positions, and a decentralized functional unit receiving process information regarding the conveyor paths and/or the carrying elements and, by comparison with nominal process information, detecting deviation from the nominal process information and reporting it to the controller. The functional units, which monitor the facility or surroundings, have computer-aided intelligence detecting and reporting deviations to the controller. Faults and/or impending faults, which can only be detected with difficulty or not at all, even in sorting facilities, are detected reliably and be reported timely to the controller.

Arrangements related to the confirmation of component connections made during manufacturing or assembly processes are described. Acoustic data resulting from the connection can be received by a microphone. A controller can analyze the acoustic information to determine if a predetermined acoustic signature is present in the acoustic information. Responsive to the determination, a confirmation signal can be generated and transmitted by the controller. One or both of the microphone and controller can be included in a wearable device and worn by a user. In some arrangements, a motion sensor can be included in the wearable device to allow determination whether motion data during a connection is acceptable.