Surveying Preparation System for Unknown Reference Point Assignment
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Solution Overview
Problem
Conventional surveying systems require a fixed station at a known reference point, limiting the use of that point for other objects and necessitating repeated data acquisition to accurately determine an unknown reference point's position coordinate, which is time-consuming.
Innovation Solution
A preparation system that disposes a fixed station at an unknown reference point, determines its position coordinate using independent positioning methods, and assigns it as a known reference point, allowing a mobile station to occupy the known reference point, thereby improving convenience and reducing the need for repeated data acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fixed station is disposed at a known reference point, then the position coordinate is known and RTK surveying can be performed, but the known reference point cannot be used for other objects and the surveying operation flexibility is reduced
Solution Approach 1:
The invention inverts the conventional approach by disposing the fixed station at an unknown reference point instead of a known reference point. The system then performs independent positioning to determine the position coordinate of this unknown point, subsequently using it as a known reference point for RTK surveying. This inversion resolves the contradiction by allowing the known reference point to remain available for other objects while achieving the same surveying functionality.
2Measurement precision
If the preparation system determines the position coordinate through independent positioning method with repeated data acquisition and statistical processing, then the position coordinate accuracy is improved, but the time required for preparation is increased
Solution Approach 1:
The invention replaces the conventional statistical processing method (which requires repeated data acquisition) with a carrier phase differential positioning method. By using carrier phase measurements and differential correction, the system can determine the position coordinate of the unknown reference point with high accuracy in a single measurement, eliminating the need for repeated acquisitions and statistical processing, thus significantly reducing preparation time while maintaining or improving accuracy.
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 easy determination and assignment of an unknown reference point's position coordinate as a known reference point, enhancing surveying operation efficiency and convenience by eliminating the need for the fixed station at a known reference point.
Implementation Method 1
receives positioning data from satellites by the mobile station and the fixed station
Data Source
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AI summary
To provide a preparation system for surveying operation that disposes a fixed station at a reference point where the position coordinate is unknown, determines the position coordinate of the reference point, and assigns the determined position coordinate as a known reference point. A preparation system for surveying operation of the present invention includes a mobile station (2) disposed at an unknown observation point and a fixed station (1) disposed at a known reference point. The preparation system is used for the surveying operation which receives positioning data from satellites (Sa1 to Sa4) by the mobile station (2) and the fixed station (1) and determines the position coordinate of the unknown observation point based on the positioning data of the fixed station. The preparation system includes an arithmetic step to determine the position coordinate of the unknown reference point (A") based on positioning data received by the mobile station (2), positioning data received by the fixed station (1), and a position coordinate of the known observation point (B"), and an assigning step to assign the unknown reference point (A") whose position coordinate is determined as the known reference point A.