Measuring Apparatus Tracking Restoration via Imaging Recognition
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Solution Overview
Problem
Measuring apparatuses that track targets with light beams face challenges in restoring the tracking state when interrupted, particularly due to the difficulty in locating the light beam's trajectory at long distances, leading to time-consuming manual adjustments by the measurer.
Innovation Solution
Incorporating an imaging unit and recognition unit to capture and analyze the target's vicinity, allowing the angle control unit to adjust the light beam's emission angle to re-establish tracking by identifying specific features or positions, such as the measurer's face or center of gravity, and optionally using a display unit for guide images to aid in re-establishing the tracking state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the measurer manually moves the target to restore tracking by relying on intuition, then the tracking state can be restored, but it takes a lot of time especially when the distance is several tens of meters
Solution Approach 1:
The patent introduces a light beam trajectory display device as an intermediary between the laser beam and the measurer. This device visually displays the trajectory of the laser beam, allowing the measurer to see where the beam is pointing and adjust the target position accordingly. This mediator resolves the contradiction by providing visual guidance that speeds up the restoration process while maintaining reliable tracking recovery.
Solution Approach 2:
The system implements feedback by displaying the laser beam trajectory in real-time. The measurer can observe the displayed trajectory and adjust the target position based on this visual feedback, creating a closed-loop control system that enables quick and accurate restoration of tracking state without relying on intuition or trial-and-error movements.
2Productivity
If the light beam trajectory is made visible to help the measurer, then the restoration process is accelerated, but the device complexity increases
Solution Approach 1:
The patent makes the laser beam trajectory display device serve multiple functions: it displays the beam trajectory for guidance, indicates the current tracking state, and can show positional information. By making this single device multi-functional, the patent achieves high productivity in tracking restoration without proportionally increasing device complexity, as the same hardware infrastructure supports multiple operational needs.
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
Facilitates quick and accurate restoration of the tracking state without manual searching, enhancing measurement efficiency by directing the light beam towards recognizable features, thus reducing the time and effort required to re-establish the tracking.
Implementation Method 1
a light source for emitting a light beam L
Implementation Method 2
an imaging unit for capturing the target or the vicinity of the target
Data Source
AI summary
It is an object of the present invention to provide a measuring apparatus capable of easily restoring the tracking state when the tracking state of the target is interrupted. One aspect of the present invention is a measuring apparatus that emits a light beam toward a target, captures and tracks the target, and measures the three-dimensional coordinates of the target. The measuring apparatus includes: a light source for emitting light beam; an angle control unit for controlling the emission angle of the light beam emitted from the light source so as to track the moving target; an imaging unit for capturing the target or the vicinity of the target, and a recognition unit for recognizing the target or the specific portion including the target from an image captured by the imaging unit. The angle control unit controls the emission angle of the light beam so as to emit light beam toward the target or the specific portion including the target recognized by the recognition unit when the tracking of the target is released.