Electrostatic Paintball Position Detection Avoiding Light Interference
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Solution Overview
Problem
Conventional paintball gun detection systems using infrared sensors are prone to false determinations due to interference from light sources and contamination, leading to inaccurate detection and potential malfunctions, especially with transparent or translucent paintballs and broken paintballs.
Innovation Solution
An electrostatic capacity detection apparatus using an induction plate responsive to the paintball's electrification, positioned within the firing area, measures changes in electrostatic capacity to accurately detect the paintball's position, avoiding light interference and contamination issues, and allowing for easy cleaning and low power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If light-blocking type sensors are used to detect paintball position, then detection reliability is improved under normal conditions, but false determination occurs when external light sources interfere or paintballs are transparent/translucent
Solution Approach 1:
The patent replaces the optical detection system (light transmitter and receiver) with an electrostatic capacity detection system. The induction plate detects changes in electrostatic capacity caused by the paintball's proximity, eliminating dependence on light transmission and avoiding interference from external light sources and transparent paintball materials.
Solution Approach 2:
The patent changes the detection parameter from optical properties (light blocking) to electrostatic properties (capacity change). By measuring the change in electrostatic capacity between the induction plate and the paintball, the system achieves reliable detection regardless of paintball transparency or external lighting conditions.
2Ease of operation
If light transmitter and receiver openings are provided for detection, then detection function is enabled, but paint filling contaminates the openings causing function failure and damage
Solution Approach 1:
The patent replaces the optical detection system requiring openings with a contactless electrostatic detection system. The induction plate detects paintball position through electrostatic field changes without requiring physical openings, thereby eliminating paint contamination and corrosion risks to the detection circuit.
Solution Approach 2:
The electrostatic field acts as an intermediary between the induction plate and the paintball, enabling detection without direct physical contact or openings. This eliminates the contamination pathway that previously existed through optical openings.
3Difficulty of detecting and measuring
If infrared sensors are used for paintball detection, then detection capability is provided, but power consumption increases and detection accuracy decreases under light interference
Solution Approach 1:
The patent replaces the power-intensive infrared optical system with a low-power electrostatic detection system. The electrostatic capacity detection circuit consumes significantly less power while providing reliable detection capability, eliminating the trade-off between detection capability and power consumption.
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 electrostatic capacity detection system provides reliable, accurate, and low-power paintball detection, reducing false determinations and extending battery life, while allowing for immediate recovery of firing power without internal cleaning needs.
Implementation Method 1
an induction plate 70 responsive to electrostatic capacity is positioned at a corresponding side of the ball-falling tube 40 within the firing area 31
Implementation Method 2
the induction plate 70 consists of a conductive terminal piece 71 and equivalent electrostatic capacity Cx
Data Source
AI summary
An apparatus for detecting the position of the paintball of a paintball gun includes an induction plate responsive to electrostatic capacity. The induction plate is positioned at a corresponding side of the ball-falling tube within the firing area of the gun barrel, and the induction plate consists of a conductive terminal piece and equivalent electrostatic capacity. An insulated body is interposed between the terminal piece and the gun barrel. Besides, an electrostatic capacity detection circuit is electrically coupled to the induction plate for detecting the change of the electrostatic capacity of the induction plate. Moreover, the signal of the change of the electrostatic capacity is transmitted to the paintball-firing circuit for a reliable detection if the paintball accurately reaches the firing area such that the push tube may be actuated in accordance with this information. In this way, an accurate detection is ensured without being disturbed by other light sources. Moreover, an undesired firing action is avoided when the paintball is still not fed in position. In addition, it is not required to clean up the firing area. Furthermore, a low power consumption is achieved.