Light Emitting Apparatus Staggered Blink Pattern Recognition
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Solution Overview
Problem
In a light emitting apparatus recognition system, when multiple objects with attached light emitting devices approach each other, their blink patterns may overlap in the camera's image, making it difficult to recognize individual tags.
Innovation Solution
The light emitting apparatus includes a processor that controls the light source to blink in a unique pattern, with adjustable time intervals between blinks, ensuring that even when tags are close, their patterns do not overlap, allowing for accurate identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple light emitting apparatuses blink with the same time interval, then the blink patterns are simple and easy to generate, but the blink patterns overlap when objects approach each other making recognition difficult
Solution Approach 1:
The patent changes the time interval parameter of the blink pattern dynamically. Each light emitting apparatus is assigned a different time interval (e.g., 100ms, 200ms, 300ms) between blinks. This parameter differentiation allows the recognition system to distinguish between multiple apparatuses even when they appear in the same image region, resolving the contradiction between simple pattern generation and accurate recognition.
2Device complexity
If light emitting apparatuses use fixed blink patterns, then the system is simple to implement, but overlapping patterns cannot be distinguished when multiple tags are close together
Solution Approach 1:
The patent introduces dynamic variation in the blink pattern by changing the time interval between blinks for different apparatuses. Instead of using fixed, identical patterns, each apparatus has a dynamically assigned time interval that varies from others. This dynamic differentiation maintains relatively simple system architecture while significantly improving tag identification reliability in scenarios where multiple tags are detected simultaneously.
Data Source
AI summary
A light emitting apparatus includes a light source, and a processor configured to perform control to cause the light source to blink in a blink pattern corresponding to output information including identification information unique to the light emitting apparatus, and configured to, when causing the light source to blink by repeating the blink pattern, change a time interval between the blink patterns.