Construction Management Device Landform Data Update
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Solution Overview
Problem
Current landform data updating techniques fail to accurately reflect the actual status during banking work with work machines, as they do not account for the bucket's position higher than the construction object's height, leading to deviations from the actual landform.
Innovation Solution
A construction management device that includes a current status landform storage unit, a bucket position acquisition unit, and a landform update unit capable of updating the landform data to an upper value based on the bucket's height during banking work, using three-dimensional data and contour point positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current status landform data is updated only based on the lowest point of the bucket teeth during excavation work, then the landform data accurately reflects excavation status, but the landform data becomes deviated during banking work when the bucket operates at a position higher than the construction object height
Solution Approach 1:
The patent applies dynamics by making the landform data update rule changeable based on the detected work type. The system dynamically switches between two update modes: for excavation work, it updates based on the lowest point of bucket teeth; for banking work, it updates based on the upper value of the bucket height. This dynamic adaptation resolves the contradiction between maintaining accuracy for specific work types and adapting to different work types.
Solution Approach 2:
The patent changes the update parameter based on work type detection. When excavation work is detected, the system uses the lowest point of bucket teeth as the update parameter. When banking work is detected, it switches to using the upper value of the bucket height as the update parameter. This parameter change allows the system to maintain measurement precision across different work types.
2Ease of operation
If the bucket operates at a position higher than the construction object height during banking work, then the banking operation can be performed, but the current status landform data is not updated and becomes deviated from the actual current status landform
Solution Approach 1:
The patent implements feedback by continuously detecting the work type based on bucket position and operation state, and using this feedback to determine the appropriate landform data update rule. The system monitors whether the bucket is performing excavation or banking work, and automatically adjusts the update mechanism accordingly. This feedback loop ensures that landform data remains accurate while allowing flexible operation including banking work at higher positions.
Solution Approach 2:
The patent applies preliminary action by detecting the work type in advance and pre-setting the appropriate update rule before landform data update occurs. The system identifies whether banking work is about to occur based on bucket position and operation parameters, and prepares the correct update mechanism (using upper value instead of lowest point) to prevent data deviation before it happens.
Data Source
AI summary
A bucket position acquisition unit acquires a plane position of a contour point of a bucket in a plan view from the top and a height thereof from a work machine having work equipment including a boom, an arm, and the bucket. A current status landform update unit updates a height in current status landform data related to the plane position of the bucket to an upper value on the basis of the height of the bucket in a case where a work state is a predetermined work state.