Work Machine Data Priority Control Under Fleet Network Limits

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Solution Overview

Problem

Existing systems struggle to appropriately transmit operation data from multiple machines when the number is large, leading to potential loss or delayed transmission of critical information, especially for high-priority machines.

Innovation Solution

A work machine and management system that determine transmission priority based on failure probability, importance level, and replaceability, using a controller to prioritize and manage data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the number of work machines is large, then the total amount of operation information data increases, but the network traffic capacity becomes insufficient to transmit all data

Engineering Contradiction:
Improvenumber of work machinesVSAvoidnetwork traffic capacity
Core Design Contradiction:
Quantity of substanceVSLoss of energy

Solution Approach 1:

The patent applies local quality by assigning different priority levels to different work machines based on their individual characteristics (failure probability, importance level, replaceability). This allows the system to differentiate transmission requirements for each machine rather than treating all machines uniformly, enabling efficient use of limited network capacity by prioritizing critical data from high-risk machines.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent changes the parameter of data transmission by introducing priority-based transmission timing. Instead of transmitting all operation information simultaneously or at fixed intervals, the system adjusts transmission parameters (timing, frequency) based on the calculated priority level of each machine, thereby optimizing network traffic utilization.

Inventive Principle:
Principle #35Parameter changes

2Loss of energy

If data transmission is delayed or discarded due to capacity limits, then network traffic capacity is preserved, but critical information from high-priority machines may be lost

Engineering Contradiction:
Improvenetwork traffic capacityVSAvoidoperation information
Core Design Contradiction:
Loss of energyVSLoss of information

Solution Approach 1:

The patent applies preliminary action by calculating and determining the priority level of each work machine in advance, before actual data transmission occurs. This pre-assessment allows the system to prepare transmission schedules and allocate network resources proactively, ensuring that critical information from high-priority machines is transmitted first and not lost during capacity constraints.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback by continuously monitoring operation information and adjusting transmission priorities based on current machine status. The priority determination is not static but dynamically updated based on changing conditions, ensuring that critical information is always identified and transmitted appropriately.

Inventive Principle:
Principle #23Feedback

3Loss of information

If all operation information is transmitted simultaneously, then complete information is available, but transmission time and network congestion increase

Engineering Contradiction:
Improveoperation information completenessVSAvoidtransmission time
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The patent applies segmentation by dividing the transmission of operation information into priority-based segments. Instead of transmitting all data simultaneously, the system segments transmission into multiple batches according to priority levels, with high-priority machines transmitted first. This reduces overall transmission time and prevents network congestion while ensuring complete information is eventually received.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4242384B1Work machine and work machine management system
Publication Date: 2025.12.10 HITACHI CONSTRUCTION MACHINERY CO LTD
  • EP4242384B1 patent drawingFigure 1
  • EP4242384B1 patent drawingFigure 2
  • EP4242384B1 patent drawingFigure 3(a)~3(b)

AI summary

Provided is a work machine and a work machine management system that enable more appropriate transmission of information of a high-priority work machine even when there is a large number of work machines. A work machine 10 comprises an information controller 20. The information controller 20 acquires operation information of the work machine 10; receives management server information from a management server 90 provided outside the work machine 10; determines a transmission priority order of the operation information based on content of the operation information and the management server information; and transmits the operation information to the management server 90 or a relay 80 according to the transmission priority order.