Nec Corporation

Mitsubishi Electric Corporation

Hochiki Corporation

Sumitomo Bakelite Company Limited

Sumitomo Seika Chemicals Co., Ltd.

Felica Networks, Inc.

Japan Science and Technology Agency

Hochiki Kabushiki Kaisha

Takeshi Takeuchi

Akihiro Tanaka

Akio Tajima

Tatsuya Sasaki

Shuichi Sekiya

Wakako Maeda

Keiro Komatsu

Kiichi Hamamoto

Hajime Masuda

Takehiro Hiyama

Tomoharu Takeuchi

Norimitsu Nagashima

Seigo Takahashi

Shingo Yoshida

Masakatsu Watanabe

Daisuke Shiigi

Satoshi Kaede

Kenko Taguchi

Toyotaro Maruyama

Masanori Ikenaga

Masako Hayashi

Takao Terasawa

Seigou (deceased) Akazawa

Osamu Sato

Naoki Kimura

Hiroshi Aizawa

Hiroyuki Yamazaki

Kazuo Nakamura

Yusuke Kobayashi

Hideki Akashika

Tsuyoshi Watanabe

Masafumi Yamada

Shigeki Wakasa

Shogo Tatsumi

Ikuo Mito

Akihisa Tomita

Toyokazu Ota

Jun Ogishima

Hirokazu Kagano

Mitsuo Takahashi

Michio Suzuki

Hiroshi Kameo

Shigekazu Harada

Souichi Orita

Hiroshi Tobita

Kazuyuki Iwakai

Hidehiko Myoken

Yukiharu Ono

Yoshihiro Nanbu

Shuuji Suzuki

Shigeyoshi Furuhara

Toshio Nakao

Naomi Irie

Chun Li

Toshihiko Kanki

Seigou Akazawa

Keiko Akazawa, Legal Representative

Hidenobu Kajitani

Masako Yamamoto

Yoshikatsu Inoue

Yukio Tomioka

Minoru Nakada

Ichiro Yokoe

Yutaka Umetsu

Eri Moriya

Hiroshi Takeo

Daisuke Shigi

A device analysis apparatus includes: an operation data storage unit storing operation data indicating an operation state of a device; a feature quantity data generation unit generating feature quantity data of the device by using the operation data; a feature quantity data storage unit storing the feature quantity data; a first computation unit generating first data indicating behavior of the feature quantity data in units of a set term by using the feature quantity data stored in the feature quantity data storage unit; a second computation unit generating second data indicating behavior of latest feature quantity data by using one or more pieces of the latest feature quantity data newer than the feature quantity data used in generating the first data, among the feature quantity data stored in the feature quantity data storage unit; and a display unit displaying the first data and the second data in one graph.

Device analysis apparatus, device analysis method, and storage medium

A train equipment management system includes an information collection apparatus that collects individual identification numbers for identifying devices from identification tags attached to the devices installed in a train, collects device operation information indicating an operating condition of each device, and transmits, for each device, the individual identification number, the device operation information, a car number for identifying a car in which each device is installed, and a formation number for identifying the train, to a ground system; and the ground system that manages the formation number, the car number, and the device operation information in association with the individual identification number of each device.

Train equipment management system, information collection apparatus, and ground system

A deterioration diagnosis apparatus includes: a measurement condition storage unit in which first measurement conditions under which measurement is performed for diagnosing a state of a device installed on a train are stored; a measurement condition determination unit determining whether or not the first measurement conditions meet second measurement conditions in operation data that has been acquired from the train and includes a measurement result indicating the state of the device, the second measurement conditions being conditions under which the measurement result has been obtained; a difference condition extraction unit extracting a difference between the first measurement conditions and the second measurement conditions when it is determined that there is inconsistency between the first measurement conditions and the second measurement conditions; a control command generation unit generating a control command for eliminating the difference; and a control command transmission unit transmitting the control command to the train.

Deterioration diagnosis apparatus, deterioration diagnosis system, and deterioration diagnosis method

A data extraction apparatus includes a parameter analysis unit that performs analysis of learning text information, extracts words that serve as machine learning parameters, and classifies the words into types of parameters; a grouping settings display unit that finalizes search-target data and clustering conditions based on the parameters; at least one clustering training data extraction unit that extracts training data from a database based on the search-target data and the clustering conditions; at least one clustering unit that performs clustering based on the clustering condition on the training data; an applicable-clustering determination unit that performs analysis of search text information and identifies search-target data serving as a narrowing-down condition and which clustering unit is to be operated; and a search range specification unit that causes the clustering unit to operate and extracts a narrowed range of search-target data from the database based on an operation result.

Data extraction apparatus, data extraction method, and storage medium

A driving operation management system includes: an operator information accumulation unit that accumulates operator information; a mobile object information acquisition unit that acquires mobile object information; a driving operation reception unit that receives a driving operation of the operator; a service information management unit that acquires and associates the operator information and at least one of the mobile object information or operation information indicating the driving operation, and causes the acquired and associated information to be accumulated as service information; a service information accumulation unit that accumulates the service information; a determination logic setting unit that sets a determination logic for determining an operating state on the basis of the service information accumulated; a determination logic accumulation unit that accumulates the determination logic; and a determination unit that determines the operating state using the determination logic accumulated.

Driving operation management system, management server, terminal device, and driving operation management method

Included are: a unit that receives an indicated read range for an identification tag being affixed to one of devices installed in a train and storing an individual information item identifying the device; a unit that obtains a design information item indicating a model number of a device within the indicated read range and an installation position of the device with the model number in vehicles of the train; a unit that obtains a model number information item indicating a relationship between the model number and the individual information item; a reader that reads an individual information item of the device stored in an identification tag; and a unit that ascertains a model number of the device having the individual information item read and associates the installation position with the individual information item of the device having the model number when the device ascertained is present in the read range.

Position specifying device, position specifying system, position specifying method, and computer readable storage medium

Included are: a storage unit that stores device installation position information indicating installation positions for devices installed under floors of vehicles of a train, stores reading locations at each of which at least one individual information item identifying one of the devices is read from an identification tag storing the individual information item, each of the reading locations being where radio waves are emitted toward the identification tag affixed to corresponding one of the devices, and stores, correspondingly to radio wave strength for each of the plurality of the reading locations, at least one individual information item that is read with varied radio wave strengths in radio wave emission; and a position specifying unit that ascertains which device carrying the individual information item is in which installation position of the vehicles of the train and associates the installation position with the individual information item identified.

A fuel efficiency estimation system includes: a velocity profile calculation unit to calculate a velocity profile indicating a change in velocity of a motor vehicle traveling a traveling route; a velocity disturbance calculation unit to calculate, based on disturbance information indicating a disturbance event occurring on the traveling route and traveling history information collected from the motor vehicle traveling the traveling route, an attenuation factor, which is a ratio of attenuation of the velocity of the motor vehicle traveling the traveling route, as a velocity disturbance correction coefficient; and a fuel efficiency calculation unit to calculate fuel efficiency of the motor vehicle traveling the traveling route by using the velocity profile and the velocity disturbance correction coefficient.

Fuel efficiency estimation system, fuel efficiency estimation method, and computer readable medium

A fuel efficiency estimation system includes a traveling velocity calculation unit () to store a link traveling velocity () for each link as a road section configuring a road in a traveling velocity DB () and a traveling velocity extraction unit () to extract, based on a traveling route (), a link traveling velocity () on a link included in the traveling route () from the traveling velocity DB (). The fuel efficiency estimation system also includes a velocity profile generation unit () to generate a velocity profile () indicating a change in velocity of a motor vehicle traveling the traveling route () by using the link traveling velocity () and an estimated fuel efficiency calculation unit () to calculate fuel efficiency of the motor vehicle traveling the traveling route () based on the velocity profile ().

An extraction unit () determines, by using a fixed composition file, a fixed composition including a car having a specified equipment installed thereon as a fixed specified composition. The extraction unit determines, by using an operation composition file, an operation composition including the fixed specified composition as an operation specified composition. The extraction unit extracts, from an environment file, environment information corresponding to a set of a specified time and the operation specified composition. A conversion unit () converts, by using the environment information, state information indicating the state of the specified equipment at the specified time to comparative information indicating the state of the specified equipment in a reference environment. An evaluation unit () compares the comparative information with reference information. Then, the evaluation unit evaluates the state of the specified equipment at the specified time based on the comparison result.

Train equipment management system, train equipment management method and computer readable medium

An object is to enable wireless communication between a portable terminal and on-board devices, and enable wireless connection to a train composition to be subjected to maintenance even in the presence of a plurality of train compositions. A control transmission device is mounted on a train and includes: a port connectable by wire to a maintenance communication device that is an external terminal; a train composition number notification unit that provides notification of a train composition number of the train; and a wireless network ID reception unit that receives a wireless network ID for constructing a wireless network. The wireless network ID received by the wireless network ID reception unit is generated based on the train composition number provided by the train composition number notification unit.

Control transmission device, maintenance communication device, and train maintenance system

A first computation unit acquires a first variation coefficient representing characteristics of linear variation of first time-series data, and calculates a value of a start time point and a value of an end time point of the first time-series data. A second computation unit acquires a second variation coefficient representing characteristics of linear variation of second time-series data, and calculates a commencing time point in the second time-series data, and a completing time point obtained by adding a time width between the start time point and the end time point to the commencing time point. A difference integrated value is calculated between paired time points which are in the same positional relationship in a range from the start time point to the end time point and in a range from the commencing time point to the completing time point, without calculating values of intervening time points.

Analysis device, analysis method, and computer readable medium

There is provided a wireless communication system that includes two information communication terminals with built-in IC chips engaged in alternating wireless communication with each other through noncontact communication, wherein one of the information communication terminals includes a reception unit that receives a packet originating from the other information communication terminal, a transmission unit that wirelessly transmits a single packet or a plurality of packets to the other information communication terminal by transmitting all packets that can be transmitted to the other information communication terminal instead of engaging in alternating wireless communication if a specific condition is satisfied and an identifier appending unit that appends a last packet identifier to a packet to be transmitted last from the transmission unit among all the packets that can be transmitted to the other information communication terminal.

Wireless communication system, information and communication terminal, portable telephone, reader/writer, communication method and computer program

Disclosed is a photodiode carrier which can equalize the frequency response characteristics of a plurality of mounted photodiodes. A photodiode carrier as disclosed includes a diode array connection region, first and second signal side electrodes connected to the diode array connection region, first and second bias side electrodes connected to the diode array connection region, and first and second condensers connected between the electrode disposed on the way of the first and the second bias side electrodes and the ground electrode, wherein the electrodes disposed on the way of the first and the second bias side electrodes are located in the about equal distance from the diode array connection regionas a start point.

Photodiode carrier and photo sensor using the same

The present invention provides a method for producing 1,2-benzisothiazol-3-one compounds by reacting a 2-(alkylthio)benzonitrile compound with a halogenating agent in the presence of water, the method being characterized in that the reaction proceeds while the halogenating agent and water are gradually and simultaneously added to a reaction system containing the 2-(alkylthio)benzonitrile compound. The invention allows the simple and economical production of highly pure 1,2-benzisothiazol-3-one compounds, which are useful as antimicrobial agents, antifungal agents, etc.

1,2-benzisothiazol-3-one compound production method

Growing community of inventors

Tokyo, Japan

Takeshi Takeuchi