Optical Positioning Assembly Using Frequency-Coded Light Rings
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Solution Overview
Problem
Conventional satellite navigation and positioning systems suffer from low accuracy, limited application range, and inflexibility, with positioning errors typically around 10 meters and a lack of convenience in operation.
Innovation Solution
A measurement assembly comprising multiple light emitters with different frequencies arranged at intervals, forming light rings that are received by a light receiver on an object, allowing for precise position determination using a position determining unit, which can also measure length and position in two dimensions with the aid of cone lenses and additional light emitter sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If satellite navigation and positioning system is used, then positioning function is provided, but positioning accuracy is low with error about 10 meters
Solution Approach 1:
The patent replaces the satellite-based electromagnetic positioning system with a ground-based optical measurement system. Light emitters positioned at known locations emit light signals that form light rings on the ground, and a light receiver detects these rings to determine position through optical geometry rather than satellite signals, achieving centimeter-level accuracy compared to meter-level satellite positioning
Solution Approach 2:
The patent changes the fundamental measurement parameter from satellite signal timing/distance to optical light ring frequency and position. By using multiple light emitters with different frequency lights and detecting which light rings are visible, the system transforms the positioning problem into an optical frequency detection problem, enabling higher precision measurement
2Adaptability or versatility
If conventional satellite navigation system is used, then positioning is provided, but the function is monotonous and application range is limited
Solution Approach 1:
The patent creates a multi-functional measurement assembly that can perform various measurement tasks including position determination, length measurement, and area measurement using the same basic optical infrastructure. The system can measure positions of multiple objects simultaneously and adapt to different measurement scenarios by adjusting light emitter arrangements and detection parameters
3Ease of operation
If satellite navigation system is used, then positioning is provided, but operation is neither flexible nor convenient
Solution Approach 1:
The measurement assembly operates autonomously with light emitters continuously emitting signals and the light receiver automatically detecting and processing light ring information. The position determination unit automatically calculates positions without requiring manual intervention, making the system convenient to operate while adaptable to different measurement needs through software configuration
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
The solution provides accurate and flexible positioning and measurement capabilities, enhancing precision and convenience while expanding application range, with a simple and cost-effective structure.
Implementation Method 1
a first light emitter set including a plurality of light emitters arranged at equal intervals in a first direction, the light emitters emitting lights of frequencies different from one another
Data Source
AI summary
A measurement assembly includes a first light emitter set including a plurality of light emitters arranged at equal intervals in a first direction, the light emitters emitting lights with frequencies different from one another; a light receiver disposed on an object under measurement and configured to receive incident lights from the light emitter set; and a position determination unit configured to determine a first current position of the object under measurement according to frequencies of incident lights currently received by the light receiver from the first light emitter set.