Hitachi, Ltd.

Hitachi-ge Nuclear Energy, Ltd.

Kenji Utaka

Kenji Araki

Masatoshi Takada

Toshimi Yokota

Satoru Aoike

Masafumi Noujima

Masakazu Hisatsune

Chikara Takeuchi

Chikara Ota

Noritaka Matsumoto

Ryosuke Shigemi

Kimihiro Kaimori

Kouichi Uesaka

Ryousuke Shigemi

When an RFID is attached to an object to assist testing operations, the following problems are encountered; (1) the RFID of write type tends to cause a failure and is troublesome due to the necessity of rewrite each time the situation is changed, (2) the incorporation of the reader function in a terminal block increases the cost, and (3) the known techniques are targeted for only the connecting operation and are not adapted for a sequence test that takes the most expense in time and effort. The operations are aided by using an RFID reader and a terminal having the function for accessing a database of circuit information, RFID information, and test procedure information.

RFID system, RFID cable system, and RFID cable laying method

Disclosed is a cable identifying system for accurately discriminating one cable from another on site over a long period of time, the system enabling a cable layer or a cable user, when laying out an RFID built-in cable, to do without manually writing any information in the RFID tags built in the cable. One cable having RFID tags built therein can be accurately realized. The individual ID's of the RFID tags are read and stored in a storage apparatus. When a part of the cable is cut, the ID's of the RFID tags nearest to the both end of the cable are read out, and the ID-related data of the RFID tags in the cut-out cable are recorded on a desired medium or electronic information medium.

Methods for manufacturing and application of RFID built-in cable, and dedicated RFID reading systems

A wall-thickness thinning rate at a not-measured position is estimated using information having a small number of measured points. Simulation of behavior of fluid flowing inside a pipe line is performed based on wall-thickness data of pips and three-dimensional layout data of the pipe line including the pips using a computer, and simulated wall-thickness thinned data of the pipes composing the pipe line is calculated from change of the simulated behavior of fluid.

Method of offering wall-thickness thinning prediction information, and computer-readable recording medium storing wall-thickness thinning prediction program, and method of planning piping work plan

Structural members constructing a plant are classified into a plurality of groups on basis of a likeness criterion of a predetermined operation status. An index member having a higher degradation tendency than the structural members belonging to the group is installed at at least a part of at least one of structural member to generate an inspection plan through actual inspection of the index member to provide reduction in the number of structural members to be inspected and an extended inspection interval without decrease in reliability.

Method of managing maintenance and maintenance managing apparatus

A wall-thickness thinning rate at a not-measured position is estimated using information having a small number of measured points. Simulation of behavior of fluid flowing inside a pipe line is performed based on wall-thickness data of pipes and three-dimensional layout data of the pipe line including the pipes using a computer, and simulated wall-thickness thinned data of the pipes composing the pipe line is calculated from change of the simulated behavior of fluid.

Growing community of inventors

Hitachi, Japan

Kenji Utaka