LiDAR Handheld Scanner for Real-Time BIM Construction Progress
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Solution Overview
Problem
Current construction progress monitoring methods lack real-time integration with BIM models, making it difficult to efficiently track quality and progress on construction sites without regular on-site visits by supervisors.
Innovation Solution
A system utilizing LiDAR technology with a handheld device and cloud server for real-time measurement and comparison of construction site data, enabling augmented/mixed reality displays for immediate progress and quality assessment, and integrating with BIM for comprehensive management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional monitoring methods with supervisors visiting construction sites regularly are used, then construction progress and quality can be monitored, but real-time monitoring capability is lost and work efficiency is reduced
Solution Approach 1:
The patent replaces the mechanical system of manual supervisor visits with an automated LiDAR-based measurement system. The handheld LiDAR device automatically captures construction site data, the cloud server processes and stores the information, and the system generates progress reports without requiring physical supervisor presence, thus maintaining monitoring reliability while dramatically improving work efficiency
Solution Approach 2:
The system enables self-service monitoring where the construction site itself provides the measurement data through LiDAR scanning. The automated system continuously captures and uploads progress data without human intervention, allowing the construction process to monitor itself while reducing the need for manual inspection visits
2Loss of information
If manual measurement and recording methods are used, then construction data can be collected, but real-time data acquisition and processing capability is lost
Solution Approach 1:
The patent implements continuous data acquisition through automated LiDAR scanning that continuously captures construction site measurements. The system maintains continuous operation by automatically uploading data to the cloud server in real-time, eliminating the interruptions and delays associated with manual measurement and recording processes
Solution Approach 2:
The cloud server acts as an intermediary that receives, processes, and stores measurement data from multiple handheld LiDAR devices. This intermediary system automatically manages data consolidation, comparison with BIM models, and generation of progress reports, eliminating the time-consuming manual data processing while ensuring complete data capture
3Ease of operation
If traditional measurement methods without BIM integration are used, then basic progress tracking is possible, but comprehensive quality assessment and compliance verification cannot be achieved
Solution Approach 1:
The patent merges the LiDAR measurement system with BIM (Building Information Modeling) technology. The system automatically compares LiDAR-captured point cloud data with the BIM model to verify construction compliance, integrating progress tracking and quality assessment into a unified platform that maintains operational simplicity while achieving high measurement precision
Solution Approach 2:
The system implements automated feedback by comparing real-time LiDAR measurements with the BIM model and immediately identifying deviations or non-compliance issues. This feedback mechanism provides instant quality assessment results, enabling rapid correction of construction errors while maintaining simple operation through automated verification processes
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
Enables real-time monitoring and reporting of construction progress and quality, improving efficiency and accuracy by providing immediate feedback on site conditions and compliance with BIM specifications through augmented reality displays.
Implementation Method 1
The handheld measurement device is provided with a LiDAR and a positioning device; the system is used to monitor the construction progress of the building which includes the following steps: S1. enter the building with the handheld measurement device, measure the building using the LiDAR of the handheld measurement device
Data Source
AI summary
The invention provides a system for construction progress management based on LiDAR technology, comprising a cloud server containing a BIM of a building under construction or in operation; and a handheld measurement device with a LiDAR and a positioning device. The user uses the handheld LiDAR scan at a specified location in the building and obtains point cloud data of the building structure in real time, which is transmitted via the network to the cloud server, where the cloud server obtains the comparison results and the attribute data of the building components in real time by comparing the real time measurement data with the historical measurement data and/or the building BIM, and then uses augmented/mixed reality to display on the handheld measurement device’s display screens so that users with different access rights can quickly, directly and clearly understand the progress and quality of the work, etc.