Coaxial Holder Integrating GNSS Receiver with Spray Can
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Solution Overview
Problem
Existing surveying methods for sports fields require handling multiple devices simultaneously, including a surveying pole, display device, and spray can, and are prone to position errors due to the pole's inclination, making them cumbersome and unreliable.
Innovation Solution
A holder that coaxially integrates a GNSS receiver or prism with a cylindrical spray can, allowing for secure and easy attachment to a surveying cart, ensuring accurate marking by maintaining the vertical axis alignment and providing a mechanism for wireless data transmission and real-time position tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a surveyor uses a sharpened pole to mark locations, then the marking can be made, but position errors occur due to pole inclination and the surveyor must constantly maintain perfect upright alignment
Solution Approach 1:
The patent combines the spray can and GNSS receiver into a single integrated holder assembly where both components are mounted on the same vertical axis. This merging eliminates the need for separate pole handling and ensures the spray can nozzle remains vertically aligned with the GNSS antenna, automatically maintaining accurate positioning without requiring the surveyor to manually keep the pole upright.
Solution Approach 2:
The holder assembly serves multiple functions simultaneously: it holds the spray can for marking, mounts the GNSS receiver for position detection, and provides a unified mounting interface for the surveying cart. This multi-functionality reduces the number of separate devices the surveyor must handle while maintaining both marking and positioning accuracy.
2Measurement precision
If the spray can and GNSS receiver are mounted separately on the surveying cart, then both devices can be used, but position errors occur due to misalignment between the marking location and detected location
Solution Approach 1:
The patent merges the spray can and GNSS receiver into a single coaxially-aligned holder assembly that mounts as one unit to the surveying cart. This integration ensures that the spray can nozzle and GNSS antenna share the same vertical reference axis, guaranteeing that the marked location precisely corresponds to the detected GNSS position without requiring complex separate mounting arrangements.
3Adaptability or versatility
If the surveyor handles the surveying pole, display device, and spray can independently, then all functions are available, but the operation becomes cumbersome and time-consuming
Solution Approach 1:
The patent combines the spray can and GNSS receiver into a single integrated holder that mounts to the surveying cart, reducing the number of independently handled items. The surveyor now manages the cart (which carries both devices), the display device, and trigger mechanism as a coordinated system, rather than separately handling a pole, display, and spray can, thereby improving operational efficiency.
Solution Approach 2:
The holder assembly is designed to be self-aligning through its coaxial mounting structure, where the spray can and GNSS receiver automatically maintain proper vertical alignment relative to each other and the cart frame. This self-alignment eliminates the need for the surveyor to manually adjust and maintain alignment during operation.
Data Source
AI summary
A holder (1) for fixing a cylindrical spray can (2). The holder (1) comprises a holding unit (3) for fixing the spray can (2) with a first mechanical interface (4) for connecting a GNSS receiver (5) or prism to the holding unit (3). The holding unit (3) is adapted to hold the spray can (2) such that the GNSS receiver (5) or prism and the spray can (2) are arranged coaxially to each other. The holding unit (3) comprises a second mechanical interface (6) for releasably connecting the holder (1) to a frame (7) of a surveying cart (8).