Hitachi, Ltd.

Xanavi Informatics Corporation

Other

Opnext Japan, Inc.

Clarion Co

Takaharu Ishida

Kimiya Yamaashi

Osamu Tomobe

Yukihiro Kawamata

Shigeru Matsuo

Yoshinori Endo

Kozo Nakamura

Katsuaki Tanaka

Kimiyoshi Machii

Michio Morioka

Yoshihito Sato

Tohru Watanabe

Hiroshi Kuroda

Hideki Inoue

Hiroki Uchiyama

Masahiro Watanabe

Chihiro Fukui

Taminori Tomita

Toshiyuki Oda

Yoshiyuki Tajima

Hiroki Satoh

Michiki Nakano

Yasuko Shiga

Kazumi Rissen

Toru Yamada

Koichiro Iijima

Tomoo Yasukawa

A communicating unitof a power interchange management systemis coupled to a plurality of power interchange apparatusesthat control electrical equipmentto. Each power interchange apparatus is coupled via a system power supply line. A computing unitcreates a group for interchanging power by acquiring prescribed pieces of informationtofrom the respective power interchange apparatuses and selecting a plurality of prescribed power interchange apparatuses based on the prescribed pieces of information. Prescribed conditions include a condition related to control power. The condition related to control power may be that a first power interchange apparatus on a power transmitting side has power for power transmission control necessary for transmitting power and, at the same time, a second power interchange apparatus on a power receiving side has power for power reception control necessary for receiving power.

Power interchange management system and power interchange management method for maintaining a balance between power supply and demand

A plurality of storage battery modules include storage battery control devices that can mutually communicate with each other and obtain a demand for electric power in a predetermined consumer in which the plurality of storage battery modules are provided. The storage battery control devices mutually transmit and receive charging/discharging electric power of the storage batteries and control charging/discharging of the plurality of storage battery modules, respectively, on the basis of the demand for electric power in the predetermined consumer.

Storage battery control device and storage battery control method

There is a request for charging and discharging of a lithium-ion battery with as less degradation as possible. In an operation using only binary values as in conventional technology, however, in a charged state in which the battery is used, there is a high possibility that the battery is used toward accelerating the degradation thereof. In a power distribution device for distributing power between a plurality of batteries and a plurality of customers, when distributing the power of the batteries to the loads of the customers, by being based at least on the degradation information of the batteries, the state of charge, and the temperature data of the batteries, a battery discharging function is achieved that makes the degradation of the batteries minimum.

Power distribution device

A calculation device is provided that executes calculations within real-time restrictions. The calculation device implements a step of predicting a processing time of a calculation related to the amount and property of input data based on a prediction model; a step of adjusting the processing time by decreasing the amount of data used for the calculation or decreasing the number of iterative calculations when the processing time exceeds a time slice allocated to the calculation; a step of executes the calculation using the adjusted processing time; a step of updating, as required, the prediction model used for predicting the processing time according to the result of the calculation which is executed in a period where the calculation is not performed while implementing a change of the amount of data or the number of iterative calculations or change to an approximation.

Predictive sequential calculation device

A power monitoring and control apparatus and system are provided, which level charge loads of electric vehicles over an overall power system as well as make the power loads fall within the maximum contract power, in plug-in charging of the electric vehicles in individual houses. The power monitoring and control apparatus is used in charging a battery-mounted equipment from the power system through a battery charger. The apparatus compares a current value available for charging the battery-mounted equipment from the power system with a charging current value requested to the battery charger from the battery-mounted equipment, and employs as the charging current to the battery-mounted equipment a smaller one among the charging current available value and the charging request value.

Power monitoring and control apparatus and power monitoring and control system

The battery charging of electric vehicles, etc. is controlled so that the impact on the electric power system is lightened even when a lot of electric vehicles, etc. start the charging all at once. A device for controlling an electricity storage device installed in an electric vehicle or the like calculates a voltage drop by applying a load current at the time of performing the charging of the electricity storage device, and limits the charging quantity of the storage battery (installed in the electric vehicle or the like) based on the calculated voltage drop so that the voltage drop of the electric power system remains less than a prescribed level. Consequently, it becomes possible to reduce the voltage fluctuation around each of the electric vehicles, etc. that is about to execute the charging in cases where a lot of electric vehicles, etc. start the charging all at once.

Storage battery control device, charging station, and storage battery control method

Provided are charging/discharging spots which are connected to a power grid and which charge storage batteries of electric vehicles connected thereto and discharge charged power of the storage batteries to the power grid; a data center which collects and stores current position information of electric vehicles located in a territory and charging state information of storage batteries of the electric vehicles; and a power aggregator which ranks degrees of necessity of charging/discharging the storage batteries of the respective electric vehicles based on the stored position information, the charging state information of the storage batteries and position information of the charging/discharging spots and creates a ranking list indicating the ranks. The power aggregator distributes information for guiding each of the electric vehicles to a designated one of the charging/discharging spots for charging or discharging in accordance with the ranking list. Accordingly, moving electric vehicles can be guided to charging/discharging spots, so that power charged/discharged on the power grid side can be kept more surely.

Power grid control system using electric vehicle, power grid control apparatus, information distribution apparatus, and information distribution method

A digital broadcast receiving apparatus receives a digital broadcast signal, which consists of layers each obtained by dividing a transmission bandwidth into a plurality of segments and combining some of the segments, and outputs images and/or sound from one of the layers constituting the received digital signal. This apparatus is characterized by comprising broadcasting format retention means (channel to broadcasting format correspondence table database) for retaining the broadcasting format, for each layer, of each broadcast station and switching means (layer switching means) for switching the output layer based on the broadcasting format, for each layer, of each broadcast station retained in the broadcasting retention means. Thus, this apparatus can output images and sound without interruption.

Digital broadcast receiving apparatus

A relay station comprises an emergency information detection unit for detecting an emergency information broadcasting flag in the digital broadcasting TMCC signal transmitted from the center station; a replacement data creation unit for issuing an instruction for creating replacement contents and replacing the data when emergency information is multiplexed in the TS; and a time synchronization unit for executing time synchronization between the TS created by the data replacement and the TS before the data replacement. On a receiving terminal, the replaced data broadcasting contents can be received while prefectural broadcasting video and audio contents are continuously received.

Broadcasting data converter

In a digital broadcast multiplexing apparatus for multiplexing a plurality of programs on a single physical channel so as to broadcast the digital multiplexed broadcasting program, there are provided with an apparatus for correcting positions of PCR packets contained in transport streams within the respective programs, and a PCR correction value forming apparatus for applying values of correcting PCR values with respect to a result of the position corrections in order to simply execute a function capable of uniformly synchronizing the PCR packets contained in the transport streams and capable of viewing the received programs without any interruption on the reception side even when a tuning operation is carried out. Then, the digital broadcast multiplexing apparatus outputs such a broadcast program packet stream which has been multiplexed as a single broadcast program in such a manner that the PCR packets are synchronized with each other among the plurality of programs.

Digital broadcast multiplexing apparatus

Provided is a digital broadcast receiving device () which can display a high resolution image longer without burdening users with a cumbersome operation. The digital broadcast receiving device () of the present invention switches, based on vehicle information, between switching thresholds by which switching is made between plural digital broadcast decoders outputting different digital broadcast images from one another in accordance with a reception state of digital broadcast waves. The plural digital broadcast decoders include, for example, a stationary reception decoder (), which outputs a digital broadcast image for stationary receivers, and a mobile reception decoder (), which outputs a digital broadcast image for mobile receivers.

Digital broadcast receiving device, digital broadcast receiving method, and program therefor

In the digital broadcast to a mobile unit, the continuous reproduction of an image cannot be guaranteed when switching the hierarchical level in accordance with the receiving condition of the radio wave and therefore the viewer has a sense of discomfort. A digital broadcast sending apparatus sends out by encoding a plurality of simultaneous broadcast streams in the same sync signal generator. A switching determination unit of the receiving apparatus switches the plurality of simultaneous broadcast streams in accordance with the receiving condition (weak hierarchical level/strong hierarchical level), and a sync adjustment unit continuously displays an image without interruptions based on the received sync signal. At the time of this switching operation, one stream is gradually switched to the other.

Digital broadcast sending apparatus, receiving apparatus and digital broadcast system

A digital broadcast receiver (mobile's receiver terminal)for receiving a digital broadcast signal DS carrying many contents and also outputting the content based on thus received digital broadcast signal DS, including a content accumulation portion (database)for accumulating received contents, a reception state detection portion for detecting whether the digital broadcast signal DS can be received normally, and a switch-over portion (reproduction/switch-over portion)for switching from output of the content received to reproduction of the content accumulated in the content accumulation portionif the reception state detection portion detects that the digital broadcast signal cannot be received normally.

Digital broadcast receiver

With regard to electric-power-supply control, there is provided an electric power supply control system for implementing load control used to be executed for each individual customer consuming electric power as coordinated control for all customers and for selecting an optimum electric-power supplier in case there are a plurality of electric-power suppliers supplying electric power to the customers. Disclosed is the electric power supply control system for purchasing electric power from a plurality of electric-power suppliers and distributing purchased electric power to any arbitrary number of customers, the system comprising: an electric-power-purchase determining apparatus for selecting some of the electric-power suppliers and determining amounts of electric power to be purchased from the selected electric-power suppliers in accordance with a predetermined rule; an electric-power storage apparatus for storing electric power; and a demand control apparatus for transmitting electric power obtained by synthesizing electric power determined by the electric-power-purchase determining apparatus with electric power generated or absorbed by the electric-power storage apparatus to the customers.

Electric power supply control system

A communications-type car navigation system including a vehicle-mounted terminal and a server. When transferring, to the terminal, the result of a route searching which the server has performed, the server transfers the data that will satisfy the requirements of a route guiding method which the user wishes. Also, the server transfers the route data that has been compressed. Concerning the map data as well, the server transfers only the necessary attributes thereof. Moreover, the following conditions allow the operability to be enhanced: the selection of a map transferring method and the route guiding method where the driving state has been taken into consideration, and the selection of a guiding unit which the user wishes.

Growing community of inventors

Hitachinaka, Japan

Takaharu Ishida