Hitachi, Ltd.

Hitachi Information Control Systems, Inc.

Toshihiro Eguchi

Setsuo Tsuruta

Kojin Yano

Tomohito Takai

Hirofumi Nagano

Tomohiro Nakamura

Toshiro Sasaki

Hiroaki Fujii

Michio Sato

Kuniaki Matsumoto

Masaru Takeuchi

Manabu Miyatake

Kazuya Hisaki

Eiji Nishijima

Kiyomi Kishi

Chiaki Kato

Toshiya Ooshima

Kenichi Ishii

Yoshihito Ide

Toshiya Oshima

An object is to improve the accuracy of prediction of deterioration of railroad ground equipment. Provided is a maintenance assistance system for railroad ground equipment, comprising: an environmental-information storage part storing environmental information containing information on weather observed at a plurality of geographical points and on geographical conditions at the geographical points; and an environmental-load estimation part holding a relational formula indicating the relationship between aged deterioration of railroad ground equipment and the environmental information, and configured to, upon specification of railroad ground equipment for which to execute deterioration prediction, acquire the environmental information which is recorded at a point near the installed position of the railroad ground equipment, during the target period of the deterioration prediction, and predict the degree of aged deterioration of the railroad ground equipment by using the acquired environmental information and the relational formula.

Maintenance assistance system and maintenance assistance method for railroad ground equipment

A degradation estimation system includes a processing unit simulating an operation mode of equipment on a corresponding railroad section at each set-up timing based on corresponding railroad section timetable information, and processing respective simulation results, and an estimation unit aggregating respective processing results of the processing unit. The processing unit simulates a travel transition of each training existing in the corresponding railroad section timetable information as a dynamic of each train based on corresponding railroad section timetable information and a running curve, simulates a state change of each track circuit based on the simulation result and railroad track information, and simulates an operational change of the equipment on each track circuit. The estimation unit aggregates the simulation result of the processing unit indicating the operational change of the equipment disposed on each track circuit, and estimates the degradation of the equipment from the aggregation result.

Degradation estimation system of railroad ground equipment and method thereof

Reliability is evaluated in constructing a component based-on application and an application for realizing reliability required can be constructed efficiently. A run-time history such as an occurrence frequency of errors, a recovery time required at error occurrence, and a processing capacity at preventive maintenance is added per software component to a run-time history list having been recoded per execution environment such as an application ID, combined component IDs, and executed hardware ID. From these pieces of information, an interval of performing preventive maintenance recommended per software component during system construction is calculated. By comparing reliability per software component and reliability required for the system, advisability is determined and conformance is evaluated. An execution schedule for preventive maintenance and a processing capability are calculated about the entire component-based application created by combining the software components. By calculating the reliability and the processing capability in the entire system to be compared to those required for the entire system, advisability is determined and conformance is evaluated.

Component-based application constructing method

When a user accesses an IC card system, the user intentionally registers processing or actions necessary for an IC card to an IC card management system, or the system determines a predetermined state to register the processing to the IC card management system. The IC card management system beforehand delivers the actions to an IC card terminal. Thereafter, when the user inserts the IC card of which the necessary actions have been registered to the IC card management system to the IC card terminal, the IC card terminal executes the actions corresponding to the IC card.

Service providing method

To generate a problem solving plan and/or a system control plan respectively in association with the contents of the problem and/or the system operation conditions, there are disposed element knowledge for storing therein problem solving methods and system control guidelines and harmonizing knowledge for selecting and/or modifying the element knowledge. Depending on the contents of the problem and/or the system operation conditions, selections and modifications are executed on the problem solving methods and system control guidelines so as to produce an optimal problem solving method and/or an optimal system control guideline. Even when the solving method, the problem solving condition, and system executing situation vary depending on a given problem solving condition and a given system executing situation, an appropriate solving plan can be proposed.

Problem solving method and system

The present invention automatically generates a data block indicating the problem to be solved and the status to be aimed at which is called a goal by goal generating knowledge which is stored beforehand for a message given from the external or internal according to a situation change, dynamically generates and executes a plurality of goals in correspondence with the situation which changes with time by attaining the generated goal using goal attaining knowledge such as a goal strategy net and obtaining a solution, performs cooperation control consisting of at least one of partition, integration, and suspension of a goal, and realizes advanced intelligence for a system which corrects a schedule in real time.

Dynamic information processing system and method for the same

The present invention enables change, inactivation and deletion of the value and content of the knowledge data stored for problem solution, by creating the assimilation proposal to assimilate the said knowledge based on the knowledge data stored in advance to solve object problems, by evaluating the created assimilation plan according to the evaluation standards stored in advance, by determining the adequate assimilation plan based on the evaluation result, and by changing the knowledge data stored in advance according to the adequate assimilation plan; thereby improving the solution precision and ensuring satisfactory assimilation precision within reasonably short time.

Knowledge data assimilation method and system

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Tokyo, Japan

Toshihiro Eguchi