公开(公告)号：US20160318534A1

公开(公告)日：2016-11-03

申请号：US15080837

申请日：2016-03-25

Applicant: Hitachi, Ltd.

Inventor： Kojin YANO ,  Tomohito TAKAI ,  Toshihiro EGUCHI

IPC: B61L27/00 ,  B61L25/06 ,  B61L23/04

CPC classification number: B61L27/0083 ,  B61L23/045 ,  B61L25/06 ,  G06Q10/20 ,  G06Q50/30

Abstract: 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.

Abstract translation: 目的是提高铁路地面设备恶化预测的准确性。 提供了一种用于铁路地面设备的维护辅助系统，包括：环境信息存储部分，其存储包含在多个地理点观测的天气的信息以及地理点上的地理条件的环境信息; 以及环境负荷估计部，其保持表示铁路地面设备的老化与环境信息之间的关系的关系式，并且被配置为根据用于执行劣化预测的铁路地面设备的规格，获取记录的环境信息 在铁路地面设备的安装位置附近，在恶化预测的目标期间，通过使用获取的环境信息和关系公式来预测铁路地面设备的老化变形程度。

公开(公告)号：US20170305448A1

公开(公告)日：2017-10-26

申请号：US15528133

申请日：2015-10-16

Applicant: HITACHI, LTD.

Inventor： Kojin YANO ,  Tomohito TAKAI ,  Toshihiro EGUCHI

IPC: B61L23/04 ,  G06F17/50 ,  B61L27/00 ,  B61L1/18 ,  B61L29/08 ,  B61L25/04 ,  G05B13/02 ,  G05B13/04 ,  B61L25/02

CPC classification number: B61L23/04 ,  B61L1/18 ,  B61L25/021 ,  B61L25/04 ,  B61L27/0011 ,  B61L27/0055 ,  B61L27/0088 ,  B61L29/08 ,  G05B13/0265 ,  G05B13/04 ,  G05B23/02 ,  G06F17/5009

Abstract: 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.

公开(公告)号：US20200070861A1

公开(公告)日：2020-03-05

申请号：US16677787

申请日：2019-11-08

Applicant: Hitachi, Ltd.

Inventor： Kojin YANO ,  Tomohito TAKAI ,  Toshihiro EGUCHI

IPC: B61L27/00 ,  B61L25/06 ,  B61L23/04 ,  G06Q10/00 ,  G06Q50/30

Abstract: 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.

公开(公告)号：US20190318253A1

公开(公告)日：2019-10-17

申请号：US16298004

申请日：2019-03-11

Applicant: Hitachi, Ltd.

Inventor： Yuki MAEKAWA ,  Tomoe TOMIYAMA ,  Natsumi OKAHARA ,  Tomohito TAKAI

IPC: G06N5/04 ,  B61L27/00 ,  G06F17/50

Abstract: A statistical model of a delay time of each mobile body to a plan schedule is generated in a predetermined section on the basis of the plan schedule, an actual schedule that is a daily travel result of the mobile body, and actual values of delay factors in a chronological order, at least either of past result analysis processing of classifying a first delay time that is a delay time of the mobile body into second delay times that are delay times of the delay factors of the mobile body on the basis of the generated statistical model and the actual values of the delay factors and future prediction analysis processing of predicting a third delay time that is a delay time of a requested mobile body on the basis of the statistical model and assumed values of the delay factors with respect of a new plan schedule is executed.