Tool Tip Position Tracking for Real-Time Construction Inspection
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Solution Overview
Problem
Current construction site inspection methods require significant workload for builders and designers due to the need for manual measurement and re-measurement, which is inefficient and labor-intensive.
Innovation Solution
A work management system incorporating a tool with a camera unit and surveying instrument that automatically tracks and measures the position of a prism, allowing real-time data collection and storage of tool tip end positions, reducing the need for manual re-measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual inspection methods are used to confirm construction work, then inspection can be performed, but the workload on builders and designers increases significantly
Solution Approach 1:
The patent replaces manual visual inspection and measurement with an automated optical measurement system. A camera captures images of construction work, and image processing algorithms automatically measure and verify dimensions against BIM models, eliminating the need for manual measurement tools and reducing inspector workload.
Solution Approach 2:
The system creates digital copies (photographs) of the construction work and uses these images for measurement and inspection purposes. This allows multiple measurements and inspections to be performed on the same digital copy without requiring repeated physical measurements, significantly reducing workload.
2Reliability
If workers are sent for inspection after construction, then work quality can be verified, but additional workload is imposed on workers
Solution Approach 1:
The construction work essentially inspects itself through the automated system. The camera and image processing automatically verify dimensions and quality without requiring workers to perform separate inspection tasks. The system autonomously compares measured values against design specifications.
Solution Approach 2:
The system performs inspection measurements simultaneously with construction work rather than as a separate subsequent step. By capturing images and performing measurements in real-time during the construction process, the system eliminates the need for workers to stop and perform separate inspection activities.
3Manufacturing precision
If re-measurement is required based on inspection results, then quality control is maintained, but time and resources are wasted
Solution Approach 1:
The system provides immediate feedback by automatically comparing measured dimensions against BIM model specifications. Inspection results are instantly available, allowing for real-time corrections without the need for delayed re-measurement. The automated system continuously monitors and reports deviations.
Solution Approach 2:
The inspection process becomes a continuous activity integrated with construction work rather than an intermittent re-measurement process. The automated system continuously captures data and performs verification, eliminating gaps where re-measurement would be required later.
4Device complexity
If traditional inspection methods are used, then simple equipment is required, but measurement data cannot be efficiently collected and stored
Solution Approach 1:
The camera serves multiple functions: capturing visual records of construction work, extracting measurement data through image processing, and storing digital information. This multi-functional approach replaces multiple specialized tools while improving data management capabilities through centralized digital storage linked to BIM models.
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
The system enables automatic real-time measurement of work positions, reducing the workload on builders and designers, improving inspection efficiency and accuracy, and allowing for comprehensive digital record-keeping of work performance.
Implementation Method 1
a tracking unit configured to automatically track the prism by tracking light
Implementation Method 2
a distance-measuring unit configured to measure a distance to the prism by distance-measuring light
Data Source
AI summary
Provided is a work management system enabling real-time inspection by simultaneously performing work and measurements. The work management system includes a tool including a communication unit and a trigger switch, a camera unit including a communication unit, a camera capable of identifying 3D camera coordinates from an image, a posture detecting device configured to acquire camera posture information, a control unit, and a prism, and a surveying instrument including a communication unit, a tracking unit, a distance-measuring unit, an angle-measuring unit, and a control unit, wherein upon detection that the trigger switch has been used, the camera unit collects camera posture information by the posture detecting device, a tool image by the camera, position coordinates of the prism measured by the surveying instrument, and orientation information of the camera unit viewed from the surveying instrument, and obtains and stores position coordinates of a tip end position of the tool.