Hitachi, Ltd.

Hitachi Information Control Systems, Inc.

Hitachi Microcomputer Engineering, Ltd.

Hitachi Control Systems, Inc.

Hitachi Building Systems and Engineering Service Co.

Setsuo Tsuruta

Kuniaki Matsumoto

Toshihiro Eguchi

Kiyomi Kishi

Shoji Miyamoto

Masahiro Matsumoto

Makoto Nohmi

Nobuhisa Kobayashi

Akira Taniguchi

Akio Nakano

Masaki Honma

Eiji Nishijima

Shigenobu Yanai

Nobuhiro Fujino

Kiminori Nakamura

Toshiya Ooshima

Kenichi Ishii

Yoshihito Ide

Toshiya Oshima

Seiichi Sasaki

Isamu Asahi

Kouzou Mabuti

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

On knowledge information processing and especially in a plan making system such as a system for generating schedule diagrams of trains and personnel, it becomes necessary to make or modify a plan by using a plurality of work stations when the plan becomes large-sized. At this time, the work stations are provided with equal plan making function. Thus, the work stations can divide planning responsibilities. Further, work stations are provided with priorities. Thus, management of competition among a plurality of work stations is facilitated and overhead caused by communication among a plurality of devices is reduced.

Cooperation scheme for plural work stations

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

A system is provided for the preparation of a cyclic maintenance work schedule table. The system includes a display unit which can show boxes defined by dates in a desired period and the names of individual workers. The system also has a worker data memory for storing scheduled work information of the individual workers during the period and work qualifications of the individual workers; a building data memory for storing the names, work details, last working dates, and contracted frequencies of maintenance work of buildings to be worked with during the period; a processor for deciding working dates in the period for the buildings stored in the building data memory; and another processor for allocating the names of the buildings in the descending order of the difficulty of work items on the basis of data - which have been obtained from the worker data memory, building data memory and working date deciding means - and, after one of the boxes has been filled with a predetermined working time, moving to another one of the boxes.

Cyclic maintenance work schedule table preparation system

A problem solving system including apparatus for representing a relationship between a goal including subgoals and its lower level subgoals and for achieving the goal as a strategy of a first kind. Apparatus is provided for repetitively dividing a goal including subgoals into its lower level subgoals according to the relationship between the goal and the subgoals. A strategy of a second kind is used to specify the functions to be performed by the apparatus to achieve the lowest subgoal. Apparatus is also provided for simplifying and solving a complicated problem by executing the goal including subgoals by use of the strategies of the first and second kinds.

Information processing system

Inference management to estimate conflicting strategies for automatic presentation of a reliable strategy. Where a conflict is generated, the inferring are executed in parallel using replicated knowledge objects Hypothetical situation control includes a hypothetical situation relational table for describing the relationships between the strategies and hypothetical situations, an estimated contents decision program for fetching a hypothetical situation that is not usually generated when strategies are adopted from the hypothetical situation relational table to establish such hypothetical situation by interacting with the user, an estimated contents recording table for recording in a group the inferring results, estimated strategies, hypothetical situations and current situation data before the estimate with an estimate case number, and a hypothetical situation control program for controlling the inferring for the inferring results, for fetching hypothetical situations corresponding to a strategy to be estimated and for executing an estimate of its result.

Inference method and system

This invention relates to a method of and a system for generating and correcting or regulating a transit schedule of a transportation medium, such as a train. Schedule tables for transportation media having numerical values for departure and arrival time, place of departure, transportation media and trainmen to be allotted and connection transportation media are correspondingly shown. Diagrams of plans are edited differently from the schedule tables, and diagrams of all or individual operations to be carried out by trainmen and other workers are all stored in a memory, and these diagrams are displayed in a display unit. Whenever variations occur in the schedules and actual transit condition is checked. Problems are eliminated automatically in a predetermined range of the diagrams, or picture and guidance displayed at once.

Transit schedule generating method and system

A computer system performs processing such as inference processing by sequentially executing rules each with its if-part stored in a working memory. The computer system comprises a production memory storing rules such as the laws of experience and nature and a working memory storing facts and hypothesis. The processing system processes the case where the rules include variables. To this end, this processing system groups the if-items and then-items which may be matched with each other depending on variable values, and takes representatives of the respective grouped items as association items to store the facts by the local parts of the association items.

Information processing system and method for use in computer systems

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Machida, Japan

Setsuo Tsuruta