Structural Pillar Measurement with Sensor-Based Survey Calibration
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Solution Overview
Problem
Existing methods for measuring and constructing architectural structures require repeated measurements using surveying instruments, which are time-consuming, labor-intensive, and prone to measurement errors due to the need for reinstallation and recalibration.
Innovation Solution
A method utilizing a three-dimensional surveying instrument and sensor devices attached to structural materials for precise measurement and calibration, allowing for efficient alignment and adjustment of tilt angles during construction, with the use of calibration information and offset settings based on sensor data to ensure accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If repeated measurements are performed using a total station during positional adjustment, then measurement accuracy is improved, but measurement time and labor effort increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-installing markers on the structural materials before construction begins. These markers remain in fixed positions throughout the construction process, eliminating the need for repeated instrument setup and recalibration. The measurement system can directly reference these pre-positioned markers for multiple measurements without requiring reinstallation of surveying equipment.
2Productivity
If a total station is reused for multiple measurements, then cost efficiency is improved, but the need for reinstallation and resetting reference increases complexity and time consumption
Solution Approach 1:
The patent introduces markers as intermediary elements that mediate between the total station and the structural materials. These markers serve as stable reference points that remain fixed on the construction site, allowing the total station to be reused for multiple measurements without requiring reinstallation or resetting of references. The markers absorb the complexity of establishing reference points, simplifying the measurement process.
3Reliability
If multiple repeated measurements are conducted, then measurement reliability is improved, but measurement errors may accumulate due to repeated setup and adjustment
Solution Approach 1:
By pre-installing markers in fixed positions before construction, the system eliminates the sources of error that arise from repeated instrument setup and adjustment. Each measurement references the same stable marker positions, preventing error accumulation that would occur with repeated total station reinstallation and reference resetting throughout the construction process.
Data Source
AI summary
A measurement method, with which effort involved in installation of a three-dimensional surveying instrument can be reduced, includes measuring positional information at a predetermined measurement point in an erected pillar (structural material) using a sensor device and the three-dimensional surveying instrument, and acquiring calibration information for the positional information measured by the sensor device on the basis of measurement results of both the sensor device and the three-dimensional surveying instrument (Step S104 and Step S106).