Wireless Data Reader Induction Charging System
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Solution Overview
Problem
Traditional retail checkout systems face limitations in the arrangement and configuration of portable data readers, particularly due to cord constraints and the need for efficient power management, which hinders flexibility and efficiency in scanning operations.
Innovation Solution
The implementation of a cordless, movable data reader with an induction charging system that allows for wireless power transfer using a network of transmission coils integrated into the checkout counter, enabling the data reader to be easily repositioned and charged without physical electrical contact, and a control system to optimize power transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cordless data reader with induction charging system is implemented, then flexibility and ease of operation are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent replaces the mechanical connection system (physical cords and plugs) with an electromagnetic induction system. The data reader contains a receiving coil that wirelessly receives power from transmission coils embedded in the checkout counter, eliminating the need for physical electrical contacts and significantly improving operational flexibility while reducing mechanical wear and safety hazards.
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary medium for power transfer. The induction charging system uses transmitting coils in the counter and receiving coils in the data reader to create magnetic coupling, allowing energy transfer without direct contact. This intermediary approach resolves the contradiction by providing both wireless power delivery and operational flexibility.
2Productivity
If multiple transmission coils are integrated into the checkout counter for wireless power transfer, then productivity and duration of action are improved, but loss of energy increases
Solution Approach 1:
The patent divides the power transfer system into multiple discrete transmission coils distributed across the checkout counter surface. Each coil can independently activate to serve data readers at different positions. This segmentation allows the system to maintain continuous power delivery (improving productivity) while only activating the necessary coils, thereby reducing overall energy loss compared to a single high-power system.
Solution Approach 2:
The induction charging system operates by periodically activating transmission coils based on the presence and position of data readers. The system detects when a reader is placed on the counter and activates the appropriate coil only during the charging period, rather than continuously operating all coils. This periodic activation maintains continuous scanning capability while minimizing energy waste through selective, time-based operation.
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
This solution enhances the flexibility and efficiency of scanning operations by eliminating cord constraints and allowing multiple configurations of the checkout system, ensuring continuous operation while maintaining optimal power transfer and reducing the risk of overheating.
Implementation Method 1
The data reader includes an induction receiving coil and an internal power source operably connected to the induction receiving coil. The checkstand includes a charging unit including at least one induction charge transmission coil... the induction receiving coil and the induction charge transmission coil are inductive coupled to one another when the data reader is placed on the charging unit
Implementation Method 2
the induction receiving coil and the induction charge transmission coil are inductive coupled to one another when the data reader is placed on the charging unit
Data Source
AI summary
A checkstand system including a counter surface within which a plurality of induction charge transmission coils are embedded in or disposed below the counter at selected charge positions about the countertop whereby a cordless peripheral, such as a data reader, is positionable and movable between multiple positions about the counter surface, the peripheral including an induction charge receiving coil operative to receive a charge current from one of the induction charge transmission coils when the peripheral is placed in proximity of a selected one of the charge positions on the checkstand. In one configuration, the system includes a temperature sensing component disposed proximal to an induction charge transmission coil and a controller operative for receiving a temperature signal from the temperature sensing component and adjusting the charge current delivered to the induction charge transmission coil in response to the signal.