Vehicle Task Prioritization via Operator Cost Optimization

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Solution Overview

Problem

Existing systems lack an efficient method to prioritize the order in which human operators should attend to the needs of multiple autonomous vehicles requiring assistance, especially when multiple vehicles require assistance simultaneously.

Innovation Solution

A system that determines a preferred order for operators to attend to tasks based on urgency metrics and task durations associated with each vehicle, using a method that calculates an order cost for each possible order and selects the order with the lowest cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If operators attend to vehicles in arbitrary order, then all vehicles eventually receive assistance, but the total time to assist all vehicles increases and urgency is not optimized

Engineering Contradiction:
Improveefficiency of assistance providedVSAvoidtotal time to assist all vehicles
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system changes the parameter of task sequencing by calculating an order cost for each possible permutation of tasks based on urgency metrics and task durations. This transforms the arbitrary ordering into an optimized sequence that minimizes total assistance time while prioritizing urgent vehicles.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system performs preliminary calculation of the optimal task order before operators begin assistance. By pre-computing the sequence that minimizes total time based on urgency metrics and estimated task durations, the system ensures that operators immediately begin with the most efficient assignment without wasting time on suboptimal sequencing.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If operators prioritize high urgency vehicles, then urgent needs are met faster, but operators may spend excessive time on single vehicles rather than distributing assistance

Engineering Contradiction:
Improveurgency response accuracyVSAvoidoperator time allocation efficiency
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system changes the parameter of task selection by incorporating both urgency metrics and task duration estimates into an order cost calculation. This transforms simple urgency-based prioritization into a balanced optimization that considers both the criticality of the vehicle's need and the time required to complete the task, ensuring operators distribute time efficiently across multiple vehicles.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250200529A1Vehicle prioritization
Publication Date: 2025.06.19 ZOOX INC
  • US20250200529A1 patent drawing
  • US20250200529A1 patent drawing
  • US20250200529A1 patent drawing

AI summary

A method is provided. The method comprises, for respective vehicles of a plurality of vehicles: (i) determining an urgency metric associated with the vehicle, the urgency metric being indicative of urgency in which to perform a task associated with the vehicle, and (ii) determining a length of time associated with performing the task for the vehicle, the task being performed by an operator of one or more operators, the one or more operators being located remote from the plurality of vehicles and being responsible for monitoring and/or controlling the plurality of vehicles. The method further comprises determining a preferred order in which the one or more operators are to perform the tasks based on the lengths of time and the urgency metrics associated with the plurality of vehicles.