Position Guiding Device Using Corrected Target Markers
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Solution Overview
Problem
Existing position guiding devices for surveying operations face challenges in accurately and easily confirming the target position, as operators rely on comparing actual field conditions with displayed information on mobile terminals, which can lead to misinterpretation due to depth information absence in the scene images.
Innovation Solution
A position guiding device and method that utilize a surveying instrument to determine three-dimensional coordinates and communicate with a mobile terminal to display corrected target position markers and direction markers, ensuring accurate positioning by adjusting the display based on the surveying instrument's measurements and tilt sensors, allowing operators to easily identify the target position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the operator uses a mobile terminal to display an installation map showing current position and target position, then the operator can confirm the positional relationship between current position and installation point, but it is not easy to confirm the installation point in the actual field due to lack of depth information in the displayed image
Solution Approach 1:
The patent merges the scene image capture function with the position display function by integrating the display device with the imaging device. The target position marker is superimposed directly onto the captured scene image, combining visual navigation information with the actual field view, eliminating the need for operators to mentally map between separate displays and physical space.
Solution Approach 2:
The patent adds depth information to the two-dimensional scene image by incorporating three-dimensional position data from the surveying instrument. The target position marker includes vertical position information that provides depth perception, allowing operators to understand elevation differences and accurately locate target positions on uneven terrain.
2Measurement precision
If the display shows the target position marker based on two-dimensional coordinates, then the position can be displayed simply, but the accuracy is reduced when working on uneven surfaces or at varying heights
Solution Approach 1:
The patent changes the coordinate system parameters from two-dimensional (horizontal only) to three-dimensional by incorporating vertical position data. The surveying instrument measures elevation information, and this vertical parameter is integrated into the target position marker display, enabling accurate positioning on uneven surfaces without significantly increasing system complexity.
3Ease of operation
If the operator moves the collimation target to the predetermined horizontal coordinate position using traditional surveying methods, then the positioning can be performed with basic equipment, but it is not easy and convenient to move the collimation target to the predetermined position
Solution Approach 1:
The patent creates a visual copy of the target position by displaying a target position marker that appears directly on the scene image at the exact location where the target should be placed. This visual copy guides the operator's movement in real-time, eliminating the need for trial-and-error positioning and reducing the time required to locate the target position.
Solution Approach 2:
The system provides continuous feedback by displaying the target position marker on the scene image as the operator moves. The marker's position on the display updates in real-time based on the operator's location, giving immediate feedback on whether the operator is approaching the correct position, thereby speeding up the target location process.
Data Source
AI summary
A position guiding device includes a mobile terminal having an imaging part and display, a position information acquiring part for acquiring current coordinate information and target coordinate information, a direction sensor for acquiring direction information, and a controller to generate a target image. The mobile terminal is attached to a pole so as to position a pole tip within an angle of view. The controller acquires, from the position information acquiring part, current coordinate information representing a position at where the pole tip points, defines a horizontal surface including the pole tip as a measurement surface, generates corrected coordinate information by shifting the target coordinate information to a position on the measurement surface, generates the target image in which a target position marker is put at a position representing the corrected coordinate information in the image obtained by the imaging part.