# US 2019/0318253 A1 · Schedule analysis support device and method

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2019/0318253 A1
- Document ID: US20190318253A1
- Status: Published application
- Kind: A1
- Application number: 16/298,004
- Filed: 2019-03-11
- Published: 2019-10-17
- Earliest claimed: 2018-04-16
- Assignees: Hitachi, Ltd.
- Applicants: Hitachi, Ltd.
- Inventors: Yuki MAEKAWA; Tomoe TOMIYAMA; Natsumi OKAHARA; Tomohito TAKAI
- Web page: https://patentgrep.com/patent/US20190318253A1

## CPC

- G06N 5/04: Inference or reasoning models
- B61L 27/12: Preparing schedules
- G06F 30/20: Design optimisation, verification or simulation (optimisation, verification or simulation of circuit designs G06F30/30)
- G06Q 10/04: Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem" (market predictions or forecasting for commercial activities G06Q30/0202)
- G06Q 10/0631: Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q 50/40: Business processes related to the transportation industry (shipping G06Q10/083)
- G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- B61L: GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC (brakes or auxiliary equipment B61H, B61K; point or crossing construction E01B)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR

## 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.

## Claims

### Claim 1

A schedule analysis support device to support analysis work of schedules of mobile bodies in a transport system, the device comprising:
a model generation unit to generate a statistical model of a delay time of each of the mobile bodies to a plan schedule that is a transport schedule preplanned for the mobile body in each 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 respective delay factors in the section in chronological order;
an analysis unit to execute at least either of past result analysis processing of classifying a first delay time that is a delay time of the mobile body in the section into second delay times that are delay times of the delay factors in the section 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 in the section on the basis of the statistical model and assumed values of the delay factors with respect to a new plan schedule; and
an output unit to display a processing result of the past result analysis processing or the future prediction analysis processing in a predetermined representation form.

### Claim 2 (depends on 1)

The schedule analysis support device according to claim 1,
wherein the analysis unit
in the past result analysis processing, calculates a fourth delay time by multiplying the second delay times by magnifications designated to the delay factors respectively and adding up the multiplication results of the delay factors, in each of the sections of each of the mobile bodies and
in the future prediction analysis processing, with respect to the new plan schedule, calculates the third delay time by multiplying fifth delay times that are delay times of the respective delay factors calculated on the basis of the statistical model and the assumed values of the delay factors by magnifications designated to the delay factors respectively and adding up the multiplication results of the delay factors, in each of the sections of each of the mobile bodies; and
the output unit displays the fourth delay time calculated in the past result analysis processing or the third delay time calculated in the future prediction analysis processing in the predetermined representation form.

### Claim 3 (depends on 2)

The schedule analysis support device according to claim 2, wherein the representation form is a form of displaying a line segment of a color tone corresponding to the magnitude of the fourth delay time or the third delay time by overlapping with a part corresponding to a corresponding section of a line segment representing a schedule of a corresponding mobile body in a diagram of the plan schedule.

### Claim 4 (depends on 1)

The schedule analysis support device according to claim 1, further comprising a delay time refinement unit to calculate the first delay time by excluding secondary delay from a fifth delay time that is a delay time of the mobile body calculated on the basis of the plan schedule and the actual schedule, in each of the sections of each of the mobile bodies,
wherein the model generation unit generates a statistical model of a delay time of the mobile body to the plan schedule in each of the sections on the basis of the first delay time calculated by the delay time refinement unit.

### Claim 5 (depends on 4)

The schedule analysis support device according to claim 4, wherein the delay time refinement unit calculates the first delay time excluding the secondary delay while the restriction of the mobile body on a target railway is taken into consideration, in each of the sections of each of the mobile bodies.

### Claim 6

A schedule analysis support method executed by a schedule analysis support device to support analysis work of schedules of mobile bodies in a transport system, the method comprising:
a first step of generating a statistical model of a delay time of each of the mobile bodies to a plan schedule that is a transport schedule preplanned for the mobile body in each 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 respective delay factors in the section in chronological order;
a second step of executing at least either of past result analysis processing of classifying a first delay time that is a delay time of the mobile body in the section into second delay times that are delay times of the delay factors in the section 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 in the section on the basis of the statistical model and assumed values of the delay factors with respect to a new plan schedule; and
a third step of displaying a processing result of the past result analysis processing or the future prediction analysis processing in a predetermined representation form.

### Claim 7 (depends on 6)

The schedule analysis support method according to claim 6,
wherein at the second step,
in the past result analysis processing, a fourth delay time is calculated by multiplying the second delay times by magnifications designated to the delay factors respectively and adding up the multiplication results of the delay factors, in each of the sections of each of the mobile bodies and
in the future prediction analysis processing, with respect to the new plan schedule, the third delay time is calculated by multiplying fifth delay times that are delay times of the respective delay factors calculated on the basis of the statistical model and the assumed values of the delay factors by magnifications designated to the delay factors respectively and adding up the multiplication results of the delay factors, in each of the sections of each of the mobile bodies; and
at the third step, the fourth delay time calculated in the past result analysis processing or the third delay time calculated in the future prediction analysis processing is displayed in the predetermined representation form.

### Claim 8 (depends on 7)

The schedule analysis support method according to claim 7, wherein the representation form is a form of displaying a line segment of a color tone corresponding to the magnitude of the fourth delay time or the third delay time by overlapping with a part corresponding to a corresponding section of a line segment representing a schedule of a corresponding mobile body in a diagram of the plan schedule.

### Claim 9 (depends on 6)

The schedule analysis support method according to claim 6,
wherein at the first step:
the first delay time is calculated by excluding secondary delay from a fifth delay time that is a delay time of the mobile body calculated on the basis of the plan schedule and the actual schedule, in each of the sections of each of the mobile bodies; and
a statistical model of a delay time of the mobile body to the plan schedule is generated in each of the sections on the basis of the calculated first delay time.

### Claim 10 (depends on 9)

The schedule analysis support method according to claim 9,
wherein at the first step, the first delay time excluding the secondary delay is calculated while the restriction of the mobile body on a target railway is taken into consideration, in each of the sections of each of the mobile bodies.