The invention relates to a method and a device for communication with a plant, in particular, for the operation and monitoring of an automated plant in industrial manufacture. The state of charge of the battery, in a battery-operated communication device, for exchange of data with the plant, is recorded. The predicted remaining operation time of the communication device is determined from the state of charge and, depending on the state of charge, measures are taken in the plant, or in the commun...

According to one exemplary embodiment, a synchronous power gauge is coupled to a processor for determining total charge consumed from a power source in an electronic device. The synchronous power gauge includes a controller for receiving a synch signal that indicates whether the electronic device is in an operating power mode or a low power mode. The synchronous power gauge further includes an analog to digital converter controlled by the controller and is configured to process a signal associat...

A fuel-cell power generation system includes a fuel-cell power generator, a power measurement section for measuring an actual power-consumption value in a household appliance, and a power-consumption estimation section for estimating a future power-consumption value over a given time-period after a given time point, in accordance with the actual power-consumption value measured by the power measurement section. Moreover, the system includes a power-generation instruction section for determining ...

A circuit inspection method includes supplying electric charges to a first, second, and third electric charge holding electrodes in an electric circuit; outputting the electric charges held in the first electric charge holding electrode after a predetermined period of time from supplying of the electric charges; changing voltages of the first and second scan lines to a drive voltage to output the electric charges held in the second electric charge holding electrode; and determining whether an el...

A bus line address changing apparatus for use in an electronic instrument including a plurality of battery unit attaching sections configured to accommodate a plurality of battery units respectively composed of at least one battery. A bus line receives a communication signal from at least one battery unit. A body side controller receives the communication signal from the at least one battery unit via the bus line. A bus line address storing device stores a plurality of bus addresses allocated fo...

An electronic battery tester includes a calibration interface. A microprocessor is configured to calibrate the battery tester by coupling to a calibrator through the calibration interface.

A system for identifying electric device includes a charging/discharging circuit comprised of at least one electric capacitor and one additional electric element, such as an electric resistor or an electric inductance. The charging/discharging circuit is connected to at least one input/output port of a central processing unit and has a particular charging/discharging characteristics based on values of the capacitor and the resistor or the inductance. The particular charging/discharging character...

A method for determining a state of charge (SOC) or state of health (SOH) of a battery system includes performing a first step. The first step includes determining a set of initial values for parameters, coefficients, and derivatives based upon linear functional relationships. A result is computed based on the determination. After execution of the first step, intermediate functions are calculated based on the result. The parameters are updated based on the intermediate functions. An open circuit...

A method and apparatus for simulating a battery tester with a fixed resistance load, such as a widely used Japanese load tester that rates the strength of Japanese batteries that are categorized under the Japanese Industrial Standard (JIS), are provided. This invention simulates such a device without invoking large current loads, yields familiar results, utilizes an existing database and provides more conclusive testing. The method includes measuring an open circuit voltage (OCV), temperature an...

An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined based upon one or more responses to one or more queries provided to an operator. The responses are used to determine battery type.