Electronic Tag Wireless Charging via Electromagnetic Induction

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing electronic tags powered by lithium batteries require frequent charging or battery replacement, leading to manpower and energy wastage, and content updates are inconvenient as they need to be rewritten through an interface.

Innovation Solution

An electronic tag system utilizing electromagnetic induction for wireless charging and data transmission, comprising a display screen, a first electromagnetic induction coil, a main controller, and a power receiving controller, which allows for wireless power supply and data transfer without the need for interface-based updates, using a rectification circuit, power receiving controller, and communication controller for efficient operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If a lithium battery is used to power the electronic tag, then the electronic tag can operate independently for a long time, but frequent charging or battery replacement is required, leading to manpower and energy wastage

Engineering Contradiction:

Improveoperating timeVSAvoidcharging convenience

Core Design Contradiction:

Duration of action of moving objectVSEase of operation

Solution Approach 1:

The patent replaces the mechanical battery charging system with an electromagnetic induction system. The electronic tag contains an induction coil that wirelessly receives power and data from an external terminal through electromagnetic coupling, eliminating the need for physical battery replacement or charging operations.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The electromagnetic induction coil serves multiple functions: it acts as both a power receiving antenna and a data communication interface. The same coil structure receives both electrical energy for powering the display and digital signals for content updates, simplifying the overall system architecture.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If content is rewritten into the display controller through an interface, then the display content can be updated, but the process is inconvenient and requires manual intervention

Engineering Contradiction:

Improvecontent update capabilityVSAvoidupdate convenience

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent replaces the manual interface-based content update method with wireless electromagnetic data transmission. The external terminal communicates with the electronic tag's main controller through the induction coil, allowing content to be updated remotely without physical connection or manual intervention.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The electronic tag system enables automatic content updates where the tag can receive new display content directly from the external terminal through electromagnetic coupling, eliminating the need for manual interface operations and making the system self-updating.

Inventive Principle:

Principle #25Self-service

3Illumination intensity

If a lithium battery is used to power the screen, then the screen can display continuously, but significant energy is consumed requiring frequent recharging

Engineering Contradiction:

Improvedisplay brightnessVSAvoidpower consumption

Core Design Contradiction:

Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The patent employs periodic wireless power transfer through electromagnetic induction. The external terminal periodically transmits power bursts to the electronic tag, allowing the screen to operate at required brightness levels during display periods while consuming minimal energy during idle periods when the tag is recharged wirelessly.

Inventive Principle:

Principle #19Periodic action

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 eliminates the need for frequent battery charging or replacement, reduces manpower and energy consumption, and simplifies content updates by enabling wireless charging and data transmission, making the electronic tag system more convenient and efficient.

Implementation Method 1

a first electromagnetic induction coil configured to receive power and display information from a data writing terminal through electromagnetic coupling

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a rectification circuit disposed between the first electromagnetic induction coil and the main controller and configured to rectify induced current generated by the first electromagnetic induction coil

Methodology Applied

Scientific EffectRectification: Diode

Data Source

PatentUS10929733B2Electronic tag, data writing terminal and electronic tag system

Publication Date: 2021.02.23 BOE TECHNOLOGY GROUP CO LTD

AI summary

The present application discloses an electronic tag, a data writing terminal, and an electronic tag system. The electronic tag includes: a display screen; a first electromagnetic induction coil configured to receive power and display information from a data writing terminal through electromagnetic coupling; and a main controller configured to acquire the display information from the first electromagnetic induction coil, and control the display screen to display the display information.