Control Device for Work-Machine Power-Feeding Placement
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Solution Overview
Problem
Existing systems fail to efficiently determine optimal locations for power-feeding devices to support work machines, particularly in construction sites where work machines frequently stop and need power replenishment.
Innovation Solution
A control apparatus that acquires operation plans for work machines to identify stop times and frequencies, and based on this information, decides and outputs the most suitable locations for power-feeding devices, such as electric accumulators or generators, to ensure efficient power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power-feeding devices are installed at all possible locations, then power supply reliability is improved, but installation cost and device complexity increase
Solution Approach 1:
The patent applies local quality by determining power-feeding device installation locations based on specific local characteristics of work machine operations at each location. The control device calculates stop time periods and numbers of stops for each location, then selectively installs power-feeding devices only at locations where work machines stop frequently or for extended periods, rather than uniformly installing at all locations. This resolves the contradiction by making the system adaptable to local operational needs.
2Reliability
If power-feeding devices are installed at more locations, then power supply coverage is improved, but loss of time for work machines increases due to longer travel distances
Solution Approach 1:
The patent applies preliminary action by pre-calculating and determining the optimal installation locations for power-feeding devices before actual installation, based on analyzed work machine operation data. The control device processes operation plans and actual operation information to identify locations where work machines stop frequently or for extended periods, then sets these as power-feeding device installation locations in advance. This ensures that power-feeding devices are strategically positioned to minimize travel time while maintaining adequate coverage.
3Reliability
If power-feeding devices are installed at all locations, then power supply availability is improved, but installation cost increases
Solution Approach 1:
The patent applies parameter changes by using operation data parameters (stop time period, number of stops) to dynamically determine installation locations. The control device calculates these parameters for each location and uses them to selectively determine where power-feeding devices should be installed, rather than using a fixed installation strategy. This resolves the contradiction by optimizing the number of devices based on actual operational parameters.
Data Source
AI summary
SOLUTION TO PROBLEM: A control apparatus acquires (i) information indicating the operation plan which indicates a stop time period or a number of stops for a work machine at each of a plurality of locations at which a power-feeding device can be arranged, or (ii) information indicating an actual value of the stop time period or the number of stops of the work machine at each of the plurality of locations, and, based on the information acquired by the acquisition unit, (a) decides a location, among the plurality of locations, at which the power-feeding device should be arranged, and performs control to output information indicating the location decided, or (b) perform control to output information for deciding a location, among the plurality of locations, at which the power-feeding device should be arranged.