Excavator Construction Management Device Position Switching
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Solution Overview
Problem
Existing construction management systems for excavation machinery fail to accurately determine the current shape of a construction target during excavation work, leading to inaccuracies in construction results, as they do not effectively utilize the movement of the work machine and traveling body to update construction position information in real-time.
Innovation Solution
A construction management device that includes a vehicle state detection part, work machine position information generation part, and traveling body position information generation part, which use either the work machine or traveling body position information to generate construction position information based on the detected state of the excavation machinery, ensuring accurate updates during both travel and stationary operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the work machine position information is used to generate construction position information during travel, then the construction position information can be continuously updated, but the accuracy of construction position information deteriorates because the work machine position does not reflect the actual construction location when moving
Solution Approach 1:
The system dynamically switches between using work machine position information and traveling body position information based on the operational state (traveling vs. stationary). When the excavator is traveling, the traveling body position information is used; when stationary and working, the work machine position information is used. This dynamic adaptation resolves the contradiction by selecting the appropriate position source for each operational phase.
Solution Approach 2:
The system changes the parameter used for construction position information generation based on the travel state. The control unit monitors whether the excavator is traveling or stationary and switches the position information source accordingly, changing the system parameter from work machine position to traveling body position and vice versa, thereby maintaining accuracy across different operational states.
2Loss of energy
If the excavation machinery travels with the work machine stopped, then fuel consumption is reduced, but the construction result accuracy deteriorates because the work machine position information becomes outdated
Solution Approach 1:
The traveling body position information serves as an intermediary to maintain construction position information accuracy during travel. Instead of relying on the stationary work machine position, the system uses the traveling body's position as a mediator to continuously update the construction position information, ensuring accuracy is maintained even when the work machine is not actively moving.
3Measurement precision
If land surveys are conducted frequently to verify construction results, then construction accuracy can be maintained, but the time consumption and cost increase
Solution Approach 1:
The excavation machinery performs self-monitoring and self-correction by continuously tracking its own position through GPS and comparing it with the construction plan. The system automatically generates construction position information and compares it with target position information, enabling the machinery to self-verify construction accuracy without external surveying interventions, thereby eliminating the need for frequent time-consuming land surveys.
Solution Approach 2:
The system implements continuous feedback by comparing the generated construction position information with the target position information from the construction plan. This real-time feedback loop allows the operator to immediately see the construction status and make adjustments, replacing the need for periodic external land surveys with continuous automated monitoring.
Data Source
AI summary
A construction management device generates construction information for an excavation machinery having a work machine, a swing body to which the work machine is attached, and a traveling body traveling with the swing body mounted thereon. The construction management device includes a work machine position information generation part determining work machine position information as information on a position of the work machine; a traveling body position information generation part determining traveling body position information as information on a position of the traveling body; and a construction position information generation part using either the work machine position information or the traveling body position information to generate construction position information as information on a position of construction by the excavation machinery, and while the excavation machinery travels, using not the work machine position information, but the traveling body position information to generate the construction position information.