摘要:
A power receiving unit receives power generated by power generating units via a power system. A power information acquiring unit acquires first system power information showing the proportion of power generated by each power generating unit in a first period. An intensity database stores environmental loading intensities for each power generating unit. A charge load intensity calculator calculates a charge load intensity which is a weighted sum of the environmental loading intensity corresponding to each power generating unit based on the proportion of each power generating unit in the first system power information. A charge/discharge judging unit determines to charge a storage unit in a first period when the charge load intensity is less than a reference value, and not to charge the storage unit in the other cases. A charge/discharge controller charges the storage unit in the first period when determined to charge the storage unit.
摘要:
A user evaluation apparatus includes a parameter determination module which determines parameters of a user evaluation model required to calculate a degree of usage influence so as to maximize a target function. The target function may be defined using weight values, measurement data, and a failure information counting result. The apparatus also includes a user evaluation module which calculates and displays the degree of usage influence using the measurement data and the parameters of the user evaluation model.
摘要:
There is provided a data collecting apparatus in which a collector collects, from demanders, demand record data and demand forecast data of the energy; a data history manager; a reliability level calculator calculates, for each demander, a reliability level of the demand forecast data; a supply plan data receiver receives an acquisition request of demand forecast data of a future predetermined time range with respect to each demander from an energy management system; and a data acquisition plan maker makes a collection plan such that the demand forecast data of the future predetermined time range and the demand record data are collected earlier from a demander with a higher reliability level, wherein the data collector collects according to the collection plan, and the data history manager provides the collected demand forecast data to the energy management system before a start time of the future predetermined time range.
摘要:
An information reproduction method according to an aspect of this invention is directed to an information reproduction method which reproduces information from an information storage medium on which land and groove tracks which can record information are alternately formed in the radial direction along wobbles that represent address information, comprising determining a track structure of a current position traced by a light beam on the basis of the address information, and a track structure of a target position on the basis of a target position address, controlling access to the address of the target position by switching between a first servo polarity corresponding to a land track and a second servo polarity corresponding to a groove track at a predetermined timing as needed on the basis of the determination result of the two track structures, and reproducing predetermined information from the target position address.
摘要:
An optical disk device has a recording information management portion which detects a distribution of a recorded region R and an unrecorded region M based on reflection light received by an optical head and an access target setting circuit which determines an access target of an optical head so as to make access to a target position of a recording layer of an optical disk while avoiding the unrecorded region M based on the detected distribution of the regions. Since an access is made while passing through only the recorded region R, a servo operation can be stabilized.
摘要:
An optical disk apparatus includes an objective lens that condenses light on an information recording layer of an optical disk that has a first area with a first track pitch and a second area with a second track pitch, to form an optical spot. The apparatus also includes a tilt driver that inclines the objective lens; a positioning unit that positions the optical spot on a target track; a position error detector that detects a position error of the optical spot from the target track; a tilt detection correcting unit that calculates a tilt error signal based on a first position error detected when the optical spot is positioned on a target track in the first area and a second position error detected when the optical spot is positioned on a target track in the second area; and a tilt controller that controls an inclination based on the tilt error signal.
摘要:
An optical disk device of the invention comprises a pickup which obtains a reading signal by irradiating an optical disk having plural recording layers with laser beam, a generating unit which generates a focus error signal from the reading signal, a control unit which focuses the laser beam based on the focus error signal, a holding unit which holds changes in a focus drive signal for driving the objective lens in a focus direction and the focus error signal as history information, and a determining section which determines where the focus position exists within the plural recording layers of the optical disk based on the focus error signal, the focus drive signal and the history information.
摘要:
An optical disk apparatus has a first optical system having an objective lens with a first NA, a second optical system having an objective lens with a second NA lower than the first NA. The optical disk apparatus at the time of processing the optical disk, when the optical system suitable recording/reproduction process of the optical disk is the second optical system, via the first optical system detecting a surface run-out of the optical disk and execute the focus lead-in process of the second optical system on the basis of a surface run-out detected; and when at the time of processing the optical disk, when the optical system suitable recording/reproduction process of the optical disk is the first optical system, processing the optical disk with the first optical system without detecting the surface run-out of the optical disk.
摘要:
A photodetector which has the function of measuring the intensity distribution of light with a simple and inexpensive construction and which has a selectivity for a measured wavelength band. The photodetector includes a transparent semiconductor electrode part and counter electrode part on each of which a sensitizing dye is applied, and a buffer layer sandwiched therebetween. The counter electrode part or the transparent semiconductor electrode part is divided into a plurality of electrode cells. Thus, it is possible to realize a compact photodetector which carries out a photoelectric transfer using part of light in a wavelength band absorbed into the sensitizing dye and which has a wavelength selectively.
摘要:
An improved variable valve timing mechanism for an internal combustion engine wherein the variable valve timing mechanism includes a control valve mounted by a bearing cap for the cam shaft and specifically one end of the cam shaft. The bearing cap is fastened to the cylinder head by threaded fasteners that are disposed on opposite sides of a bearing surfaces a cam shaft in which at least one oil control groove is formed. Oil is supplied to this control groove by a valve element that is mounted in the bearing cap in spaced relation to the threaded fasteners.