Surveying Apparatus Dynamic Field of View Tracking
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Solution Overview
Problem
Conventional surveying instruments face challenges in accurately tracking and measuring moving objects due to limited field of view and dependency on reflectors, leading to time-consuming adjustments and potential loss of the object, especially when objects are fast-moving or occluded.
Innovation Solution
A surveying apparatus with an optical arrangement that adjusts between close-range and long-range settings based on object parameters, such as distance and angular velocity, to maintain the object in the field of view and on the optical axis, allowing for continuous tracking and reliable distance measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional surveying instrument with a fixed narrow field of view is used, then measurement precision is improved, but the ability to track fast-moving objects deteriorates
Solution Approach 1:
The patent applies dynamics by making the field of view adjustable rather than fixed. The optical arrangement can dynamically change between a first setting with a first field of view and a second setting with a second field of view, allowing the system to adapt to different tracking scenarios and maintain both precision and speed capability
Solution Approach 2:
The patent changes the field of view parameter based on object motion characteristics. When an object moves faster than a threshold speed, the system switches to a wider field of view to maintain tracking capability, and when the object slows down, it switches to a narrower field of view to improve measurement precision
2Speed
If the field of view is widened to track fast-moving objects, then tracking capability is improved, but measurement precision deteriorates
Solution Approach 1:
The system dynamically adjusts the field of view width based on real-time object speed detection. The optical arrangement switches between different field of view settings, enabling the system to capture fast-moving objects without permanently sacrificing measurement precision for objects moving at normal speeds
Solution Approach 2:
The field of view parameter is changed conditionally based on object motion parameters. The system detects object speed and adjusts the field of view accordingly, using a wider field of view only when necessary for tracking fast-moving objects, thereby maintaining high measurement precision for the majority of observation conditions
3Measurement precision
If manual adjustment of the telescope system is required for each object movement, then measurement precision is maintained, but productivity deteriorates
Solution Approach 1:
The system performs automatic tracking and field of view adjustment without requiring manual intervention. The tracking unit detects object position and motion, and the control unit automatically switches between field of view settings, eliminating the need for operators to manually readjust the telescope system for each object movement
Solution Approach 2:
The system uses feedback from the tracking unit to automatically adjust the field of view. The tracking unit continuously monitors object position and speed, providing feedback to the control unit which then adjusts the optical arrangement accordingly, creating a closed-loop system that maintains precision while improving productivity
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 automatic and reliable tracking of moving objects, even at high velocities, by dynamically adjusting the field of view and maintaining the object within the optical axis, ensuring accurate position monitoring and distance measurement.
Implementation Method 1
an optical arrangement (110) to sight an object
Data Source
AI summary
A surveying apparatus and method for surveying and tracking a moving object is disclosed to improve the tracking so that a moving object may be tracked reliably and automatically. The surveying apparatus comprises an optical arrangement to sight an object, and a tracking unit to track the sighted object. The tracking unit obtains an object parameter of the object, wherein the object parameter is associated with a movement of the object. Further, the tracking unit issues an instruction to the optical arrangement to change between a close range setting and a long range setting according to the obtained object parameter, the close range setting corresponding to a wide field of view and the long range setting to a narrow field of view.