Construction Management System for Precise Element Positioning
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Solution Overview
Problem
In construction management, the complexity of building projects with multiple stakeholders and resources leads to errors and inefficiencies in positioning and mounting building elements, particularly due to deviations from planned layouts and the need for precise orientation in six degrees of freedom.
Innovation Solution
A construction management system utilizing a central computing unit with a building information model, a machine controlling unit, and a pose determining unit, which includes a laser tracker or articulated arm coordinate measuring machine, to determine the optimal mounting position and orientation of building elements in real-time, allowing for precise movement instructions for heavy lifting machines like cranes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual positioning and orientation determination of building elements is used, then workforce requirements are high and positioning time is long, but measurement precision and positioning accuracy are insufficient
Solution Approach 1:
The patent replaces manual mechanical positioning methods with an automated system that uses surveying devices (laser trackers, total stations) and computing units to determine the position and orientation of building elements. The pose determining unit automatically calculates six-degree-of-freedom pose data, substituting human manual measurement and calculation with automated optical/electronic measurement systems, thereby achieving both high precision and improved productivity
Solution Approach 2:
The system enables self-service by allowing the building element to be automatically tracked and positioned without continuous human intervention. The surveying devices continuously monitor the element's position, and the computing unit automatically generates movement instructions, reducing the need for manual workforce while maintaining high positioning accuracy and speed
2Productivity
If complex manual coordination among multiple parties is used, then adaptability to deviations is high, but error rates increase and efficiency decreases
Solution Approach 1:
The patent implements a feedback mechanism where the pose determining unit continuously monitors the actual position and orientation of building elements during movement and mounting. This real-time feedback is fed back to the machine controlling unit, which automatically adjusts movement instructions to correct deviations from the planned mounting position, thereby ensuring high positioning accuracy while maintaining efficient automated operation
Solution Approach 2:
The system performs preliminary action by pre-calculating the optimal mounting position and orientation using the building information model before the actual mounting operation. The surveying devices and computing unit prepare the six-degree-of-freedom pose data in advance, allowing the heavy lifting machine to execute precise movement instructions without manual coordination during the critical mounting phase, thus improving both efficiency and reliability
3Measurement precision
If real-time pose determination in six degrees of freedom is implemented, then positioning precision is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by using a single integrated system that combines surveying devices (laser trackers, total stations) with a central computing unit to perform multiple functions: tracking position, determining orientation, calculating six-degree-of-freedom pose data, and generating movement instructions. This multi-functional approach achieves high measurement precision while avoiding the need for separate complex devices for each measurement function, thereby managing system complexity through consolidation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system enables faster, more precise, and cost-effective positioning of building elements with reduced workforce requirements, minimizing errors by providing real-time movement instructions and accurate pose determination in six degrees of freedom.
Implementation Method 1
Said pose determining unit (e.g. comprising a laser tracker)
Implementation Method 2
the retroreflector is tracked by the at least one surveying device
Data Source
AI summary
A construction management system for constructing a building including at least one heavy lifting machine for moving a one building element to a mounting position on the building, a central computing unit providing a building information model comprising at least a construction plan comprising a target state of the construction of the building, a three-dimensional model of an actual construction state of the building, and a three-dimensional model of the element, wherein the central computing unit is adapted to determine the mounting position for the element based on the construction plan, the model of the current construction state and on the model of the element.