Surveying Device Site Calibration via Coordinate Transformation
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Solution Overview
Problem
Conventional surveying systems face challenges in interpreting and facilitating the use of measurement data between local and global coordinate systems, leading to potential errors due to different origins, scales, and orientations, as well as difficulties in accurately transforming coordinates between these systems.
Innovation Solution
A system and method for site calibration that determines coordinates in both local and global coordinate systems using a surveying device and a global positioning device, allowing for the calculation of a transformation between the two systems, thereby enabling the transformation of coordinates from one system to another without the need to switch instruments or define different point names.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional surveying methods use separate local and global coordinate systems with different origins, scales, and orientations, then measurement data can be recorded in local coordinate systems, but it becomes difficult to interpret and facilitate use of measurement data between the two coordinate systems
Solution Approach 1:
The patent combines local coordinate system measurements with global coordinate system data by establishing a transformation relationship between them. The system integrates both coordinate systems through a unified transformation model that accounts for differences in origins, scales, and orientations, allowing seamless interpretation and use of measurement data across both systems.
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting transformation parameters (origin offsets, scale factors, orientation angles) to convert coordinates between local and global systems. The system calculates and applies these parameter transformations in real-time to facilitate accurate data interpretation across different coordinate systems.
2Productivity
If conventional systems calculate projections post measurement of data, then measurement data can be collected efficiently, but measurement and survey errors increase when improperly marked locations or points are employed
Solution Approach 1:
The patent implements preliminary action by establishing control points and calculating transformation parameters before conducting the main surveying work. The system pre-processes reference data and sets up the coordinate transformation framework in advance, which enables accurate real-time coordinate conversion during field measurements and reduces errors from improper point marking.
3Measurement precision
If conventional surveying systems require switching instruments or defining different point names for coordinate transformation, then coordinate systems can be differentiated, but setup time increases and operational efficiency decreases
Solution Approach 1:
The patent applies universality by creating a multi-functional system that can handle both local and global coordinate systems with a single instrument setup. The system universally processes measurement data from both coordinate systems through a unified transformation framework, eliminating the need to switch instruments or redefine point names, thereby reducing setup time while maintaining coordinate system distinction.
Data Source
AI summary
A system and method for site calibration of a controller is provided. In one embodiment, a method may include determining coordinates of a point in a first coordinate system based on at least one measurement by a surveying device, determining coordinates of the point in a second coordinate system based on data provided by a global positioning device, and calculating a transformation of the first coordinate system relative to the second coordinate system based on the coordinates determined for the point. The method may further include calibrating the controller based, at least in part, on the transformation.