Fleet Route Planning via Centralized Road Weight Preprocessing

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Solution Overview

Problem

Existing route planning techniques for vehicles, especially in complex and dynamic environments, face challenges in efficiently determining safe and optimal driving routes due to the need for processing large amounts of raw traffic and road condition data on-board, which overloads computational resources and lacks centralized control.

Innovation Solution

A remote system, such as a fleet management system, preprocesses traffic, road, and fleet data to generate optimized road weights that reflect expected travel times, reducing data transmission and computational load on vehicles by transmitting these weights instead of raw data, allowing for decentralized route planning and dynamic adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If vehicles process large amounts of raw traffic and road condition data on-board, then route planning accuracy is improved, but computational resource overload occurs

Engineering Contradiction:
Improveroute planning accuracyVSAvoidcomputational resource load
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts the heavy computational task of processing raw traffic and road condition data from individual vehicles and centralizes it in a remote server system. The server receives raw data from multiple vehicles, processes it centrally to generate optimized route weights, and transmits only the essential weight parameters back to vehicles. This extraction resolves the contradiction by maintaining route planning accuracy through centralized processing while eliminating on-vehicle computational resource overload.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent transforms the route planning problem from a high-dimensional raw data processing task into a lower-dimensional weight-based decision problem. Instead of vehicles processing complex multi-source raw data (traffic flow, road conditions, weather, etc.), the system converts all this information into simplified weight parameters that represent route desirability. This dimensional reduction allows vehicles to make accurate routing decisions with minimal computational resources.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Measurement precision

If raw data is transmitted to each vehicle, then route planning precision is improved, but data transmission load increases

Engineering Contradiction:
Improveroute planning precisionVSAvoiddata transmission volume
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent extracts only the essential routing information from the complete raw data set and transmits only this condensed information to vehicles. The remote server processes all raw traffic and road condition data, then extracts and transmits only the optimized weight parameters needed for route planning. This extraction maintains route planning precision while dramatically reducing data transmission volume compared to sending complete raw data sets to each vehicle.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent transforms voluminous raw data into compact weight parameters, changing the data representation from high-volume raw measurements to low-volume processed weights. This dimensional transformation preserves the essential routing information needed for precise route planning while reducing data transmission requirements by orders of magnitude.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If centralized route planning is implemented, then fleet-wide optimization is improved, but system complexity increases

Engineering Contradiction:
Improvefleet-wide optimizationVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges the route planning functions of individual vehicles into a centralized remote server system. By combining data collection, processing, and route optimization into a single centralized system, the patent achieves fleet-wide optimization through coordinated routing decisions. The server considers fleet-wide conditions and generates optimized routes for multiple vehicles simultaneously, improving overall fleet productivity while managing system complexity through centralized architecture.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The remote server system performs multiple functions: collecting data from multiple vehicles, processing traffic and road condition information, generating optimized route weights, and distributing routing instructions to vehicles. This multi-functional universal system achieves fleet-wide optimization while consolidating complexity into a single platform that handles all routing operations for the entire fleet.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Adaptability or versatility

If on-vehicle route planning is used, then vehicle independence is improved, but adaptability to dynamic conditions worsens

Engineering Contradiction:
Improvevehicle independenceVSAvoidresponse to dynamic conditions
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The remote server performs preliminary processing of traffic and road condition data before transmitting routing information to vehicles. By pre-calculating optimized route weights based on current dynamic conditions and transmitting them to vehicles in advance, the system enables vehicles to independently follow optimized routes without real-time computational delays. This preliminary action maintains vehicle independence while improving responsiveness to dynamic conditions through pre-processed routing guidance.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by continuously receiving data from vehicles about their locations and conditions, processing this information centrally, and updating route weights accordingly. This feedback loop allows the centralized system to adapt to changing dynamic conditions and communicate updated routing instructions to vehicles, maintaining both vehicle independence through received guidance and high adaptability through continuous central monitoring and adjustment.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250109956A1Distributed vehicle route planning
Publication Date: 2025.04.03 ZOOX INC
  • US20250109956A1 patent drawing
  • US20250109956A1 patent drawing
  • US20250109956A1 patent drawing

AI summary

The techniques described herein relate to controlling and/or influencing the routes driven by vehicles, autonomous or otherwise, such as vehicles in a fleet of vehicles managed by a fleet management system. In some cases, the techniques described herein relate to centrally generating road weights using a remote system such as a fleet management system and providing those pre-calculated weights to vehicles to simplify onboard route planning. Rather than transmitting large amounts of raw traffic, road condition, and other data to each vehicle, the remote system pre-processes the data into condensed road weights optimized for route planning. This architecture provides various technical advantages such as reduced data transmission, decreased computational load on vehicles, and decentralized control of fleet-wide routing.