Task Schedule Creation for Railroad Vehicle Inspection Constraints
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Solution Overview
Problem
Current task scheduling methods for railroad vehicles, such as train inspections, often require manual adjustments to cyclic schedules, which fail to accommodate individual vehicle restrictions and cannot efficiently allocate tasks based on varying vehicle states.
Innovation Solution
A task schedule creation apparatus that includes a task schedule creator, which generates schedules based on restriction conditions such as the number of task implementations per unit period and the length of the period between tasks, using input devices for schedule conditions, capacity information, cycle information, and operation information to optimize task allocation across vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a cyclic schedule is created for all vehicles, then scheduling efficiency is improved, but individual vehicle restrictions cannot be satisfied
Solution Approach 1:
The patent segments the scheduling problem into two levels: first creates a common cyclic schedule template applicable to all vehicles, then individually adjusts the schedule for each vehicle based on its specific restrictions. This segmentation allows the system to maintain overall scheduling efficiency while accommodating individual vehicle requirements.
Solution Approach 2:
The patent applies local quality by allowing each vehicle to have customized schedule parameters (such as different inspection intervals, maintenance requirements, or operational constraints) while following the same overall cyclic schedule structure. This enables individual vehicle restrictions to be satisfied without compromising the global scheduling framework.
2Adaptability or versatility
If manual correction of cyclic schedule is performed, then individual vehicle restrictions can be satisfied, but scheduling efficiency deteriorates
Solution Approach 1:
The patent performs preliminary action by automatically generating the common cyclic schedule template and pre-calculating the individual vehicle adjustments before final schedule implementation. This preliminary automated processing reduces the need for manual correction while ensuring individual restrictions are satisfied from the outset.
Solution Approach 2:
The system enables self-service by automatically adjusting individual vehicle schedules based on their specific restrictions without requiring manual intervention. The scheduling system itself performs the customization, eliminating the need for manual correction and maintaining high scheduling efficiency.
3Adaptability or versatility
If task schedule is created without considering capacity restrictions, then scheduling flexibility is improved, but feasibility of task allocation deteriorates
Solution Approach 1:
The patent applies dynamics by making the schedule adaptable to capacity restrictions through automatic adjustment mechanisms. The system dynamically modifies task allocation based on real-time capacity information, maintaining scheduling flexibility while ensuring feasibility constraints are met.
Solution Approach 2:
The patent implements feedback by continuously monitoring capacity restrictions and using this information to adjust the task schedule. The system receives feedback on capacity availability and automatically modifies allocations to ensure feasibility, maintaining both flexibility and reliability.
Data Source
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Figure 3A~3B
AI summary
According to one approach, a task schedule creation apparatus includes a task schedule creator configured to create a task schedule including a plurality of tasks for a target task based on a first restriction condition concerning a number of times of implementation of a task per unit period and a second restriction condition concerning length of a period between the tasks.