Ticket Drawer Gauge Sensing for Lottery Vending Inventory
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Solution Overview
Problem
Existing lottery ticket vending machines lack the ability to accurately determine the quantity of tickets in multiple drawers, leading to inefficiencies in inventory management and potential overdispensing or underdispensing.
Innovation Solution
A lottery ticket vending machine equipped with a ticket indicator assembly, including a ticket engaging roller and movable gauge, connected to a sensor that communicates with a controller to determine the quantity of tickets in each drawer, allowing for precise inventory management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual inventory checking is used in lottery ticket vending machines, then device complexity is reduced, but measurement precision of ticket quantity is insufficient leading to understocking or overstocking
Solution Approach 1:
The patent replaces manual mechanical inventory checking with an automated sensor-based detection system. The sensor optically detects the position of the gauge indicator to determine ticket quantity, eliminating the need for manual visual inspection and significantly improving measurement precision while managing device complexity through automation.
Solution Approach 2:
The system enables self-service inventory monitoring where the sensor and controller automatically detect and record ticket quantities without human intervention. The gauge mechanism automatically responds to ticket levels, and the sensor automatically reads and reports the quantity, creating a self-monitoring system that improves precision without requiring complex manual procedures.
2Loss of information
If no inventory monitoring system is installed, then device complexity is minimized, but loss of information regarding ticket quantity occurs leading to inefficient inventory management
Solution Approach 1:
The patent implements a feedback mechanism where the sensor continuously monitors the gauge position and transmits ticket quantity information to the controller. This closed-loop feedback system ensures accurate information availability about inventory levels, enabling timely replenishment decisions while maintaining relatively simple system architecture through direct sensor-controller communication.
3Measurement precision
If frequent manual inventory checks are performed, then measurement precision is improved, but productivity is reduced due to operational interruptions
Solution Approach 1:
The automated sensor system enables continuous or periodic monitoring of ticket quantities without interrupting machine operations. The sensor can read the gauge position while the machine remains operational, eliminating the need to stop service for inventory checks and maintaining both high measurement precision and continuous productivity.
Data Source
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AI summary
A lottery ticket vending machine configured to determine, for each of a plurality of ticket drawers, if lottery tickets are in the ticket drawer, and to take one or more actions based on such determinations.