摘要:
Disclosed is a technique for detecting a relay fusion in a battery system. In particular, the disclosed technique protects the battery system by being able to determine whether all of the relays in the battery system are fused without any omission. In particular, the disclosed technique alternates between two processes to ensure all relays are operating correctly.
摘要:
A power-supply circuit for a DC appliance includes an input unit including a first terminal and a second terminal so as to receive a DC current, an output unit including a third terminal to output the DC current entered by the input unit and a fourth terminal, a connection unit including a first conductive line and a second conductive line so as to interconnect the input unit and the output unit, a rectifier unit including first to fourth diodes coupled as a bridge diode format so as to rectify the input DC current in a predetermined direction, an inductor unit that is connected in series to the rectifier unit in such a manner that the input DC current is gradually increased from an abrupt change time point of the DC current, and a condenser unit that is connected in series to the inductor unit.
摘要:
A power management apparatus includes a communication unit to receive power rate information from a power provider and receive power consumption information and reservation information from an electric device, and a controller to decide an operation order on the basis of power consumption information and reservation information of the electric device, perform scheduling to decide an operation start time on the basis of the power rate information and reservation information in the operation order, and control an operation time of the electric device on the basis of the scheduling result. As a result, the power management apparatus performs optimum scheduling of an electric device using power rate information provided from the power provider, and power consumption information and reservation information of the electric device, resulting in an increase in user satisfaction.
摘要:
A method and apparatus for recording and/or reproducing holographic data and a holographic information storage medium, wherein the apparatus for recording and/or reproducing holographic information includes an optical pickup emitting light onto a holographic information storage medium and receiving the emitted light. The optical pickup includes: a light source unit emitting a signal beam and a reference beam in a recording mode; and a focusing optical system focusing the signal beam and the reference beam on one focal point in the holographic information storage medium so that information can be recorded by using an interference pattern formed along a depth direction of the holographic information storage medium in the vicinity of the focal point, wherein the numerical aperture of the focusing optical system for the signal beam is different from the numerical aperture of the focusing optical system for the reference beam.
摘要:
A power monitoring apparatus is externally coupled to a household appliance so that the power monitoring apparatus can provide a communication function and a power metering function to the household appliance. As a result, the household appliance need not include the power monitoring apparatus, resulting in reduction in production costs of the household appliance.
摘要:
A method and apparatus for controlling operations of a controlled devices in a network including a control device and at least one controlled device are provided. The method includes: receiving information about a device usage history of a user for the at least one controlled device from the at least one controlled device; setting an optimum power consumption level corresponding to the controlled device from among a plurality of power consumption levels classified based on power consumption of the controlled device, based on the received information about the device usage history and information about time-based price; and controlling operations of the controlled device based on the set optimum power consumption level.
摘要:
A method of controlling operations of a participating controlled device in a network that includes a control device and the participating controlled device, the method including: receiving operation limiting information from the participating controlled device, the operation limiting information including combinations of allowed operations from among a plurality of operations that the participating controlled device is capable of performing, and power consumption levels that are relative amounts of power consumption of the combinations of allowed operations; setting a power consumption level corresponding to the participating controlled device, from among the power consumption levels, based on information regarding time-based price and the operation limiting information; and controlling the operations of the participating controlled device based on the set power consumption level.
摘要:
A holographic storage medium, and a method and an apparatus for recording/reproducing data on/from the holographic storage medium, the method recording data on the holographic storage medium as holograms recorded in datapages, and dividing one of the datapages into a plurality of regions; and recording the data at various sampling rates in the respective regions.
摘要:
An apparatus and method for measuring the quality of a signal on an optical disc based on level information of a viterbi decoder are provided. The signal quality measuring apparatus includes: a binary unit that generates binary signals from input RF signals; a channel identifier that receives the input RF signals and the binary signals output from the binary unit and outputs reference level values corresponding to the binary signals; and an information calculator that receives the reference level values and detects a signal quality value.
摘要:
A signal quality measuring apparatus includes a binary signal generating unit to generate a binary signal from an input signal; a level information extracting unit to extract level information from a relationship between the input signal and the binary signal using at least two window lengths; and a quality calculating unit to calculate a quality of the input signal based on the level information.