Work Machine Telemetry Prioritization Under Network Capacity Limits
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Solution Overview
Problem
Existing systems struggle to appropriately transmit operation information from a large number of work machines due to network capacity limitations, leading to potential loss or significant delay of critical data, especially for high-priority machines with high failure risk or importance in work sites.
Innovation Solution
A work machine and management system that determine transmission priority based on failure probability, importance level, and availability of replacement machines, using a controller to prioritize and manage data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If operation information from all work machines is transmitted continuously, then complete monitoring data is collected, but network capacity is exceeded and transmission reliability deteriorates
Solution Approach 1:
The patent applies local quality by assigning different transmission priorities to different work machines based on their individual characteristics. Each work machine is classified into priority levels (e.g., high, medium, low) according to its failure probability and importance to construction progress. This differential priority assignment ensures that network resources are allocated efficiently, with critical machines receiving guaranteed bandwidth while less critical machines use remaining capacity, thereby maintaining transmission reliability without overwhelming the network.
Solution Approach 2:
The patent changes the parameter of transmission priority dynamically based on work machine status and network conditions. The controller adjusts transmission parameters such as data sampling frequency, packet size, and transmission interval according to the assigned priority level. High-priority machines transmit data at higher frequencies with larger packet sizes, while low-priority machines reduce their transmission load, thus adapting the system to network capacity constraints while maintaining reliability for critical machines.
2Reliability
If data transmission priority is based on first-in-first-out principle, then simple queue management is achieved, but critical data from high-priority machines may be delayed or lost
Solution Approach 1:
The patent implements local quality in the queue management system by creating separate transmission queues for different priority levels instead of a single FIFO queue. High-priority work machines are assigned to a dedicated high-priority queue that is serviced before the medium and low-priority queues. This ensures that critical data from high-priority machines is transmitted first, preventing delays or losses even when the network is congested, while maintaining manageable complexity through structured queue organization.
Solution Approach 2:
The patent introduces a priority management controller as an intermediary between the work machines and the network transmission system. This controller evaluates the priority level of each work machine, assigns appropriate transmission priorities, and manages the transmission queues accordingly. The intermediary handles the complexity of priority-based scheduling, allowing the network system to efficiently differentiate between critical and non-critical data without requiring complex modifications to the underlying transmission infrastructure.
3Reliability
If snap-shot data storage is limited to predetermined period, then storage capacity is managed, but important historical data may be lost when storage is full
Solution Approach 1:
The patent applies local quality to data storage by implementing priority-based storage policies where snap-shot data from high-priority work machines is preserved indefinitely or for extended periods, while data from low-priority machines is stored for shorter durations or with lower retention guarantees. When storage capacity is reached, the system preferentially deletes low-priority data to make space for high-priority data, ensuring that critical historical information is preserved while managing storage capacity constraints through differentiated retention policies.
Data Source
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.