Optical Shooting Accuracy Indication System Using Periodic Light Switching
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Solution Overview
Problem
Conventional optical shooting accuracy indication systems are costly and energy-intensive due to the need for multiple light emitters and struggle to distinguish between shadowed regions produced by overlapping wide-angle beams, leading to inaccurate determination of projectile impact points.
Innovation Solution
A single-layer optical shooting accuracy indication system with a U-shaped array of light receivers and alternatingly switching light sources, allowing for the distinction between shadowed regions by controlling the activation of light sources in different time domains, using a control apparatus with a data bus and analysis module to determine the projectile's impact region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple light emitters are used to illuminate the frame interior, then the illumination coverage is improved, but the cost and energy consumption increase
Solution Approach 1:
The patent implements periodic action by alternatingly switching the first and second light sources on and off in different time domains. Instead of having multiple light sources operate simultaneously (which would consume high energy), the system uses two light sources that take turns illuminating the frame interior. This periodic switching maintains adequate illumination coverage while significantly reducing energy consumption compared to having all light sources operating at the same time.
2Illumination intensity
If two light sources illuminate simultaneously, then the illumination coverage is improved, but the shadowed regions cannot be distinguished
Solution Approach 1:
The patent resolves this contradiction by using periodic action with alternating light sources. The first light source illuminates during a first time domain, and the second light source illuminates during a second time domain. This temporal separation ensures that when one light source is active, its shadowed region can be clearly detected without being overwhelmed or confused by the other light source. The control apparatus distinguishes shadowed regions by analyzing light receiver signals during the specific time domains when each light source is active, thereby maintaining both illumination coverage and shadowed region distinguishability.
3Device complexity
If a single-layer optical screen with alternating light sources is used, then the cost and complexity are reduced, but the shadowed region distinction becomes difficult
Solution Approach 1:
The patent maintains shadowed region distinguishability in a single-layer system by implementing periodic action with alternating light sources. The control apparatus is configured to alternately switch the first and second light sources on and off, creating distinct time domains for each light source's operation. During the first time domain, the first light source is active and its shadowed region is detected; during the second time domain, the second light source is active and its shadowed region is detected. This temporal multiplexing allows the system to distinguish between shadowed regions from different light sources without requiring multiple layers of light receivers, thereby reducing device complexity while preserving information distinguishability.
4Quantity of substance
If wide-angle beams are used to illuminate the frame, then the number of light emitters is reduced, but the shadowed regions overlap and cannot be distinguished
Solution Approach 1:
The patent resolves the overlap problem of shadowed regions from wide-angle beams by implementing periodic action. Instead of having two wide-angle beams illuminate simultaneously (which causes overlapping shadowed regions that cannot be distinguished), the system alternates the activation of the first and second light sources in different time domains. When the first light source is active during the first time domain, its wide-angle beam creates a shadowed region that can be clearly detected. When the second light source is active during the second time domain, its wide-angle beam creates a different shadowed region that can also be clearly detected without interference. This temporal separation maintains the advantage of using fewer light emitters with wide-angle beams while eliminating the information loss from overlapping shadowed regions.
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 system effectively distinguishes between shadowed regions, reducing costs and energy consumption while providing accurate determination of projectile impact points without the need for expensive hardware, enabling immediate feedback on shooting accuracy without physical approach to the target.
Implementation Method 1
a first light source (21) mounted at a first corner of the frame and emitting a beam of light (26) directed to the frame interior, a second light source (22) mounted at a second corner of the frame and emitting a beam of light (27) directed to the frame interior
Implementation Method 2
When a projectile (10) is fired through the frame interior (4), the projectile interrupts a portion of beams (12, 13) and produces a shadowing effect whereby regions of the U-shaped array do not receive the emitted light due to the temporary interruption caused by the passage of projectile (10) through frame interior (4)
Data Source
AI summary
An optical shooting accuracy indication system, comprising apparatus for generating a single-layer optical screen with alternatingly switching first and second light sources; a control apparatus for distinguishing between the light that is emitted by said first and second light sources during different first and second time domains, respectively, and for identifying an impingement region of a fired projectile through the generated optical screen.