Pill Dispenser Using Optical Volume Detection and Conductive Grounding
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Solution Overview
Problem
Existing pill dispensing systems face challenges with reliability and maintenance due to dust buildup, electrostatic charges, and the need for frequent calibration and modification to handle various pill sizes and shapes, leading to inaccuracies and equipment wear.
Innovation Solution
A pill dispenser with a hopper, feed chute, and microcontroller that uses conductive materials to ground electrostatic charges, incorporates multiple singulation stages, and employs a vibrating plate for accurate pill conveyance, reducing dust accumulation and maintenance needs while self-calibrating to accommodate wear and change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional pill dispensing mechanisms are used to handle various pill sizes and shapes, then the device can accommodate different pill types, but the reliability and counting accuracy deteriorate due to dust buildup and electrostatic charges
Solution Approach 1:
The patent replaces traditional mechanical counting mechanisms with an optical detection system. Optical sensors detect pills as they pass through a detection zone, eliminating the need for mechanical contact that generates dust and electrostatic charges. This substitution maintains versatility in handling different pill types while significantly improving counting accuracy and reliability.
Solution Approach 2:
The patent creates a controlled environment within the dispensing mechanism that minimizes dust generation and electrostatic charge accumulation. By designing the pill flow path and detection zone to reduce friction and contact, the system maintains a cleaner, more stable environment that prevents dust buildup and maintains optical sensor accuracy over time.
2Measurement precision
If frequent cleaning and maintenance are performed to remove dust buildup, then the counting accuracy is maintained, but the productivity and operational continuity are reduced
Solution Approach 1:
The patent implements a self-cleaning design where the pill flow itself helps remove dust and contaminants from critical surfaces. The continuous movement of pills through the dispensing mechanism acts as a natural cleaning process, reducing the frequency of manual maintenance while maintaining counting accuracy and operational continuity.
Solution Approach 2:
The patent incorporates design features that prevent dust buildup before it affects accuracy. By optimizing the pill flow path, surface materials, and electrostatic discharge mechanisms, the system proactively prevents contaminant accumulation, eliminating the need for frequent interruptions for cleaning and maintenance.
3Adaptability or versatility
If mechanical adjustments are made during operation to accommodate different pills, then the adaptability is improved, but the device complexity and ease of operation are worsened
Solution Approach 1:
The patent designs a universal dispensing mechanism with adjustable parameters that can handle various pill sizes and shapes without requiring physical modifications. The system includes programmable control that allows operators to input pill characteristics, and the mechanism automatically adjusts flow rates, detection sensitivity, and dispensing timing, maintaining ease of operation while achieving high adaptability.
Solution Approach 2:
The patent incorporates dynamically adjustable parameters in the dispensing mechanism, including variable speed motors, adjustable aperture sizes, and programmable detection thresholds. These dynamic elements allow the system to adapt to different pill types through software control rather than mechanical reconfiguration, simplifying operation while maintaining versatility.
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 achieves high accuracy and reliability in counting and dispensing pills of varying sizes and shapes with reduced maintenance requirements, effectively addressing dust buildup and electrostatic issues, and maintaining precise counting over time.
Implementation Method 1
the use conductive materials to ground electrostatic charges
Implementation Method 2
incorporates multiple singulation stages, and employs a vibrating plate for accurate pill conveyance
Data Source
AI summary
A self-contained pill dispenser is disclosed. A housing is provided and a hopper for containing a plurality of pills is supported by the housing. A feed chute having a detector mechanism is operatively connected to the hopper for receiving pills therefrom. A microcontroller is also operatively connected to the hopper, the feed chute, and the detector mechanism. The microcontroller calculates the volume of each of the pills transiting the detector mechanism based on occluded electromagnetic signals detected by the detector mechanism and the time of transit of each pill relative thereto.