Passive RFID Transponder Remote Control
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Solution Overview
Problem
Conventional remote controls are often cumbersome, require a permanent power supply, and are not easily customizable or adaptable for individual use, lacking flexibility and maintenance-free design.
Innovation Solution
A passive RFID-based remote control system that is thin, flexible, and waterproof, with autonomously switchable transponders that can be cut to size and customized, using resonant frequencies for energy transmission and contact activation, integrated into objects or substrates, and compatible with existing WLAN routers for command processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional remote controls are used, then remote control function is achieved, but the device requires a permanent power supply and is cumbersome
Solution Approach 1:
The passive RFID transponder is powered by the electromagnetic field generated by the reader, eliminating the need for an internal power supply. The system serves itself by harvesting energy from the existing electromagnetic environment rather than requiring dedicated battery power.
Solution Approach 2:
The power supply function is extracted from the remote control device itself and transferred to the reader system. By removing the battery and power management components from the handheld device, the remote control becomes significantly lighter and simpler while the reader assumes the power provisioning role.
2Use of energy by moving object
If passive RFID transponders are used, then no power supply is needed, but energy transmission requires resonant frequencies
Solution Approach 1:
The system utilizes electromagnetic resonance at specific frequencies to transfer energy from the reader to the passive transponder. By tuning the transponder to resonate at the same frequency as the reader's electromagnetic field, efficient wireless power transfer is achieved without physical contact or internal power sources.
3Adaptability or versatility
If the remote control is made flexible and thin, then it can be attached to various surfaces, but it requires waterproofing and special attachment methods
Solution Approach 1:
The passive RFID transponder is constructed as a thin, flexible film that can conform to various surfaces including curved and uneven areas. This flexible film structure eliminates the need for rigid housings while maintaining protective encapsulation of the electronic components.
Solution Approach 2:
The adhesive backing serves multiple functions: it provides waterproof sealing, enables attachment to various surfaces, and protects the transponder components. This multi-functional approach simplifies the overall design by combining protection and mounting into a single integrated layer.
4Adaptability or versatility
If the remote control is customized for individual use, then it meets specific user needs, but it requires cutting and printing processes
Solution Approach 1:
The remote control system is divided into modular components: a reusable passive transponder film and a customizable label layer. Users can cut and customize only the label portion while reusing the electronic components, reducing manufacturing complexity while maintaining customizability.
Solution Approach 2:
The button layout and labeling can be copied from existing remote controls or customized using printing processes. This allows users to replicate familiar interfaces or create custom layouts without redesigning the entire system, simplifying the customization process.
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 solution provides a customizable, low-maintenance, and flexible remote control system that can be used by individuals with disabilities, operates without batteries, and is waterproof, with energy sourced from available radio networks, enabling easy attachment and operation on various surfaces, including uneven or curved ones.
Implementation Method 1
The energy for the switchable RFID transponder is preferably transmitted via the resonant frequencies
Implementation Method 2
The transmission of the signal (information) takes place in particular in the form of the influencing of the electromagnetic field of the transmitter
Implementation Method 3
the remote control for technical devices includes a passive RFID transponder, which triggers a switching contact when a user physically touches it
Data Source
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AI summary
The invention relates to the remote control for technical devices, comprising a passive RFID transponder which triggers a switch contact in the event of a physical contact of a user, in order to emit information to control the technical device.