Title:
SIMULATION EXECUTION DEVICE AND SIMULATION EXECUTION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/173903
Kind Code:
A1
Abstract:
The present invention makes it possible to execute a simulation at high speed after the occurrence of an insignificant parameter change. A simulation execution device (100), wherein the simulation execution device (100) is configured to have an arithmetic device (104) which, when executing a secondary simulation pertaining to a secondary simulation graph (122) after executing a primary simulation pertaining to a primary simulation graph (121) for fixing the value of a constraint variable using a prescribed algorithm (112), compares the secondary simulation graph (122) with the primary simulation graph (121), extracts an equal node, among nodes of the secondary simulation graph (122), to a prescribed node of the primary simulation graph (121), the types of constraint variables and the constraints at an input edge of which nodes are the same, and executes a process for fixing the constraint variable value of the extracted node using the constraint variable value of the corresponding node in the primary simulation graph (121).
Inventors:
TAKAHASHI YOSHIYASU (JP)
TOMIYAMA TOMOE (JP)
SATOU TATSUHIRO (JP)
TOMIYAMA TOMOE (JP)
SATOU TATSUHIRO (JP)
Application Number:
PCT/JP2014/062806
Publication Date:
November 19, 2015
Filing Date:
May 14, 2014
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B61L27/00; G06F19/00; G06Q50/30
Foreign References:
| JPS61138343A | 1986-06-25 | |||
| JP2011218838A | 2011-11-04 |
Other References:
KEISUKE ABE ET AL.: "Train Traffic Simulation Using the Longest Path Method", TRANSACTIONS OF INFORMATION PROCESSING SOCIETY OF JAPAN, vol. 27, no. 1, 15 January 1986 (1986-01-15), pages 103 - 111
YUSAKU NAGASAKI ET AL.: "Application of graph theory to scheduling of train operation -- fundamental theory and possibility of its application to realtime train rescheduling", HEISEI 15 NENDO THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN KOTSU DENKI KENKYUKAI, 5 June 2003 (2003-06-05), pages 20 - 25
YUSAKU NAGASAKI ET AL.: "Application of graph theory to scheduling of train operation -- fundamental theory and possibility of its application to realtime train rescheduling", HEISEI 15 NENDO THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN KOTSU DENKI KENKYUKAI, 5 June 2003 (2003-06-05), pages 20 - 25
Attorney, Agent or Firm:
ISSHIKI & CO. (JP)
All international patent business corporation (JP)
All international patent business corporation (JP)
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