A computer includes a processor and a memory storing instructions executable by the processor to receive data indicating a plurality of tasks to be performed at a site by a plurality of electric machines, receive charge statuses of the electric machines and of a plurality of first electric vehicles at the site, and generate an ordered allocation of a plurality of charging operations for the electric machines and first electric vehicles based on the plurality of tasks and on the charge statuses. The charging operations include charging at least one of the electric machines or first electric vehicles from a second electric vehicle with charge ports that is scheduled to visit the site from offsite.

A computer includes a processor and a memory storing instructions executable by the processor to receive data indicating a plurality of tasks to be performed at a site by a plurality of electric machines, receive charge statuses of the electric machines and of a plurality of first electric vehicles at the site, and generate an ordered allocation of a plurality of charging operations for the electric machines and first electric vehicles based on the plurality of tasks and on the charge statuses. The charging operations include charging at least one of the electric machines or first electric vehicles from a second electric vehicle with charge ports that is scheduled to visit the site from offsite.

An inventory tracking and management system includes storage devices comprising carts, cabinets, or shelves, sensors and/or monitoring devices associated with the storage devices, a central database connecting the storage devices, sensors, and monitoring devices within a hospital, and a processing server associated with the central database. The processing server including a software system controlling operation of the inventory tracking and management system.

A method includes generating movement signals indicative of sensed movement of a powered system in one or more directions and generating fluid level signals indicative of a sensed amount of fluid in the powered system. The method also includes, with one or more processors, receiving the movement signals and the fluid level signals from one or more accelerometers and a fluid level sensor, wherein the one or more processors also configured to filter at least some of the movement signals based on a speed at which the powered system operates. The method also includes, with a first antenna of the sensor assembly, wirelessly communicating one or more of the movement signals or the amount of fluid to a remote location.

A method includes generating movement signals indicative of sensed movement of a powered system in one or more directions and generating fluid level signals indicative of a sensed amount of fluid in the powered system. The method also includes, with one or more processors, receiving the movement signals and the fluid level signals from one or more accelerometers and a fluid level sensor, wherein the one or more processors also configured to filter at least some of the movement signals based on a speed at which the powered system operates. The method also includes, with a first antenna of the sensor assembly, wirelessly communicating one or more of the movement signals or the amount of fluid to a remote location.

An electric drive unit having an electric motor having a flange-mounted adapter that is attached to the electric motor and has a motor shaft extension for extending the motor shaft through the adapter. The electric drive unit has at least one sensor for measuring at least one operating variable of the electric motor and an evaluation unit for evaluating the operating variable(s) measured by the sensor(s). The sensor(s) and evaluation unit are arranged in and/or on the electric motor and/or adapter. The evaluation unit is designed to evaluate the measured operating variable(s) with respect to the need for maintenance and/or repair and to output a signal about the need for maintenance and/or repair via a signal transmission device for signaling the need for maintenance if the result of the evaluation of the operating variable(s) indicates the need for maintenance.

A secure enclosure is described which is designed to offer inventory management and tamper detection for the storage and removal of rolled coins and other valuable items. Within the secure enclosure a plurality of shelves are provided. Each shelf may have its own scale for the purpose of weighing the contents supported by its shelf. Each shelf may be designed for the storage of one particular denomination of rolled coin. Monitoring circuitry interfaces with the scales for the purpose of determining the quantity of rolls upon each shelf, and the possibility for an erroneous deposit or removal of rolls supported by a shelf or an improper access to other contents on the shelf. A further approach detects multiple types of rolls of coins utilizing a single scale.

Methods of estimating tribological damage described herein include examples where varying power is applied between surfaces engaged in frictional contact. Calculations evaluate power consumed at the relevant frictional contact and temperature values may be gathered to supplement the calculated power. Instantaneous and cumulative assessments of damage are calculated based on that information. Measurements or calculations of electrical power may be used as part of the damage assessment.

Methods of estimating tribological damage described herein include examples where varying power is applied between surfaces engaged in frictional contact. Calculations evaluate power consumed at the relevant frictional contact and temperature values may be gathered to supplement the calculated power. Instantaneous and cumulative assessments of damage are calculated based on that information. Measurements or calculations of electrical power may be used as part of the damage assessment.

A sensor system for identifying a state of at least one machine includes one or more sensors for acquiring measured values of the at least one machine, at least one communication interface, and an evaluation unit configured to acquire a plurality of data sets containing measured values of the one or more sensors, select a portion of the data sets by active learning, and provide the selected portion of the data sets to the at least one communication interface for the purpose of identifying the state of the at least one machine.