Wireless Machine Coordination for Paving Operations

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Solution Overview

Problem

Coordination of paving operations between machines is challenging due to difficulties in communication, particularly between paving machines and supply machines, which affects efficiency and coordination in paving operations.

Innovation Solution

A wireless communication system is implemented between paving machines and supply machines, enabling the exchange of operational characteristics and control signals to optimize the operation of both machines, including ground engaging drive mechanisms, material transport, and application systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If communication between paving machine and supply machine is coordinated through remote personnel or central server, then communication can be established, but communication efficiency deteriorates and coordination difficulty increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidcoordination difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent divides the communication system into distributed wireless communication units on each machine (paving machine and supply machine) rather than relying on a centralized server. Each machine has its own controller and wireless communication capability, enabling direct peer-to-peer communication and eliminating the need for remote coordination personnel.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces wireless communication systems as intermediaries between machines, replacing the need for human operators or centralized server mediation. The wireless communication transmits operational data and coordination signals directly between machine controllers, enabling autonomous coordination.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If machines operate independently without direct communication, then machine complexity is reduced, but productivity deteriorates due to coordination inefficiency and idling time

Engineering Contradiction:
Improvepaving operation efficiencyVSAvoidcommunication system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent enables machines to self-coordinate through automated wireless communication between their controllers. The supply machine and paving machine independently exchange operational data (position, speed, material flow rates) and autonomously adjust their operations without external intervention, improving productivity while keeping the communication system relatively simple.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent implements feedback loops where each machine's controller continuously receives operational data from the other machine via wireless communication and automatically adjusts its operation. For example, the supply machine receives paving rate information and adjusts material delivery accordingly, eliminating idling time and improving overall efficiency.

Inventive Principle:
Principle #23Feedback

3Ease of operation

If wireless communication system is implemented between machines, then coordination efficiency is improved, but device complexity increases

Engineering Contradiction:
Improvecoordination efficiencyVSAvoidwireless communication system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent integrates wireless communication functionality into the existing machine control systems rather than adding completely separate communication hardware. The controllers on each machine perform multiple functions including operation control, data processing, and wireless communication, reducing overall system complexity while improving coordination efficiency.

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

Data Source

PatentUS9845578B2System for wireless communications between machines
Publication Date: 2017.12.19 CATERPILLAR PAVING PROD INC
  • US9845578B2 patent drawing
  • US9845578B2 patent drawing
  • US9845578B2 patent drawing

AI summary

A system for controlling a supply machine and a paving machine includes a supply machine having a first sensor for generating first signals indicative of a first characteristic associated with the supply machine, and a first controller configured to determine a first characteristic associated with the supply machine. The paving machine includes a second sensor for generating second signals indicative of a second characteristic associated with the paving machine and a second controller configured to determine the second characteristic associated with the paving machine, receive first operating signals indicative of the first characteristic associated with the supply machine, and generate command signals to control operation of the paving machine based upon the first characteristic associated with the supply machine and the second characteristic associated with the paving machine.