Kabushiki Kaisha Toshiba

Nec Corporation

Toshiba Corporation

Yokohama National University

Toshiba Energy Systems & Solutions Corporation

Shigeki Katayama

Hiroyuki Maehara

Tomonori Nishida

Yuji Kimura

Kotaro Ise

Minoru Saito

Tsutomu Matsumoto

Jun Takehara

Katsuhiko Sekiguchi

Yasuyuki Kozakai

Minoru Saitoh

Kazuto Fukushima

Yukihiko Maede

Tetsuo Otani

Wataru Yamamori

Takaya Shono

Disclosed is a dynamic facility management system that is able to start quickly and monitor a state when various measuring instruments are attached to or removed from the facility to be securely monitored and maintained. The system includes a sensor as a measuring instrument. A measuring instrument reading device, which is a lower level device, transmits a type of the measuring instrument and a purpose of connecting the measuring instrument to a directory server. The directory server generates an instance by referring to class information and generates and registers a relation instance by referring to an inter-class relationship. The directory server transmits the generated instance to related devices on the basis of an inter-instance relationship, and the directory server exchanges facility management data between instances on the basis of the inter-instance relationship.

Dynamic facility management system

According to one embodiment, a measuring device includes a clock output unit, a receiving unit, an adjusting unit, a generating unit, and a transmitting unit. The clock output unit generates a clock, counts the clock, and outputs a count value. The receiving unit receives a first message including time information. The adjusting unit adjusts time at which acquires a physical amount on the basis of the time information included in the first message and the count value output from the clock output unit when the first message is received. The generating unit generates a second message including a value of the physical amount acquired at the adjusted time. The transmitting unit transmits the second message to a device, which is a transmission source of the first message.

Measuring device, protection relay, and program product

According to one embodiment, there is provided a breaker-phase-control switching system including a merging unit, a superordinate unit, and a circuit-breaker control unit. The circuit-breaker control unit includes a waveform-zero-point-calculation processing unit configured to calculate a current phase, based on absolute time kept by an internal clock and waveform data, and a predicted-breaker-operating-time-calculation processing unit configured to predict a predicted operating time. Further, a command-output-timing-determination processing unit is included which determines a timing for electrically conducting a coil from the absolute time, a preset target phase, a current phase, and a predicted operating time.

Breaker-phase-control switching system and circuit-breaker control unit

A substation instrument control system is disclosed. The substation instrument control system includes a plurality of transformers that generate a plurality of waveform signals representing electric properties of a substation instrument main body. A merging unit is communicatively coupled to the plurality of transformers and includes a signal processing unit and a control unit. The signal processing unit receives the plurality of waveform signals from the plurality of transformers and converts the plurality of waveform signals to a digital signal. The control unit controls operation of the signal processing unit using a setting data. An intelligent electronic device is communicatively coupled to the merging unit and receives the digital signal from the merging unit.

Substation instrument control system

According to one embodiment, when sending a transmission target main data, an authentication-tag generator unitgenerates an authentication tagby using a main dataand a key datastored in a key-data storage unit. A transmitter/receiver unitadds the authentication tagto the main datasends as a transmission data. When receiving the received data, the transmitter/receiver unitdivides the received data into a main dataand an authentication tag. The authentication-tag generator unitgenerates an authentication tagfor comparison. A received-data authentication unitdetermines whether or not those the received authentication tagand the authentication tag for comparisonmatch with each other. A different key data is used every time upon the authentication-tag generation and use time of each key data during a set period is restricted.

Protective-control measuring system and device and data transmission method

In a color image processor for converting a RGB input image data into a CMYK image output data, it is determined whether a data format of the input image data is a non-picture image format or a picture image format. For the input image data of the non-picture image format, a color conversion is performed with values of C, M and Y colors made minimum and a value of K color made maximum, when values of all of the R, G and B colors are minimum, and, for the input image data of the picture image format, a color conversion is performed with the values of the C, M and Y colors set to temporary values slightly smaller than the maximum values thereof when values of all of the R, G and B colors are minimum. Final C, M, Y and K colors are obtained by performing the Black-Generation and Under-Color-Removal processing for the temporary values.

Color image processor

Growing community of inventors

Tokyo, Japan

Shigeki Katayama