Modular Geodetic Instrument Base with Interchangeable Modules
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Solution Overview
Problem
Conventional geodetic instruments are limited in their ability to project spatial points along a predefined horizontal plane, requiring precise adjustment and restricting their work region, and often necessitate multiple setups to cover all points, making them cumbersome and costly for complex surveying tasks, especially in difficult-to-reach locations.
Innovation Solution
A modular geodetic instrument system with a base module and interchangeable surveying/projection modules, allowing for easy mounting and dismounting, and enabling the same instrument to function as a total station, laser scanner, or rotating laser without repositioning, with modules referencing a single origin of coordinates for unified data acquisition and projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional geodetic instruments are used to project spatial points along a predefined horizontal plane, then precise adjustment is achieved, but the work region is restricted and multiple setups are required
Solution Approach 1:
The geodetic instrument is divided into a base module and interchangeable surveying/projection modules. This segmentation allows different functional modules to be mounted on the same base, enabling the system to perform multiple functions (total station, laser scanner, rotating laser) without repositioning the instrument, thereby expanding work region coverage while maintaining projection precision through each module's specialized design
Solution Approach 2:
The base module is designed with universal mounting capabilities that accept various types of surveying and projection modules. This multi-functionality allows a single instrument setup to perform diverse geodetic tasks including spatial point projection, laser scanning, and total station measurements, eliminating the need for multiple separate instruments and expanding the effective work region
2Measurement precision
If conventional geodetic instruments require precise adjustment for horizontal plane projection, then measurement accuracy is maintained, but the instrument becomes cumbersome and requires multiple setups
Solution Approach 1:
By segmenting the instrument into a stable base module and interchangeable functional modules, the system maintains measurement precision through the base's stable mounting structure while reducing setup complexity. Each module can be quickly mounted or dismounted without requiring complex realignment procedures, as the base module provides a consistent reference framework
Solution Approach 2:
The base module is pre-configured with universal mounting interfaces and coordinate reference systems. This preliminary preparation allows surveyors to quickly attach different modules without performing complex adjustment procedures, thereby maintaining measurement accuracy while significantly reducing the complexity and time required for instrument setup
3Adaptability or versatility
If multiple geodetic instruments are used to cover all surveying points, then complete coverage is achieved, but cost and instrument management become higher
Solution Approach 1:
The modular instrument system provides universal functionality through interchangeable modules, allowing a single base to perform the roles of multiple specialized instruments. Surveyors can attach appropriate modules (total station, laser scanner, projection module) based on task requirements, achieving complete surveying coverage with one instrument platform rather than managing multiple separate devices
Solution Approach 2:
The segmentation of functions into separate interchangeable modules allows the system to provide comprehensive surveying capabilities without requiring multiple complete instruments. Each module contains specialized functionality, and by combining different modules with the base, the system achieves versatile coverage while reducing the total number of instruments needed
Data Source
AI summary
A geodetic instrument with a base module and a surveying or projection module. A processor for control of the instrument is situated in the base module. The surveying or projection module is rotatable about two axes by a drive unit of the base. The instrument comprises a mechanical interface connecting the surveying or projection module to the base module and an optical or electrical contact interface between the base module and the geodetic surveying or projection module. The interfaces are designed such that the surveying or projection module is mountable to the base module and dismountable from the base module by a user, whereby the geodetic instrument is designed for mounting of various surveying or projection modules of different geodetic type and execution of accordingly different geodetic surveying or projection functions.