Interactive RFID Tag Switching for Low-Power Direct Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless devices, including RFID systems, face issues such as high power usage, inflexibility in structure and configuration, opacity, large size, and high cost, limiting their user customization and efficiency.
Innovation Solution
An RFID tag with an interactive switch and antenna, allowing physical interaction to trigger signal transmission to an RFID reader, enabling user-controlled electronic device operations without the need for direct contact, and allowing for customizable and flexible device configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional wireless devices are used for data transfer and remote control, then wireless communication functionality is achieved, but power consumption is high requiring frequent battery replacement or recharging
Solution Approach 1:
The RFID tag uses periodic activation through physical interaction (touch or proximity detection) to transmit signals only when needed, rather than continuously transmitting. This on-demand activation dramatically reduces power consumption while maintaining communication functionality when required.
Solution Approach 2:
The system uses the RFID reader's electromagnetic field to power the passive RFID tag during interaction, eliminating the need for an active power source in the tag. The tag harvests energy from the reader's field to enable signal transmission, making the system self-powered during operation.
2Adaptability or versatility
If traditional wireless devices are used, then wireless communication is enabled, but the devices are inflexible in structure and configuration requiring users to adapt to fixed configurations
Solution Approach 1:
The RFID system allows dynamic configuration where multiple RFID tags can be attached to different locations or devices, and their functions can be programmed and modified through the reader. Users can reposition, add, or remove tags as needed, creating a flexible system that adapts to changing requirements rather than being fixed in structure.
3Shape
If RFID tags are made transparent and compact, then aesthetic appeal and ease of integration are improved, but signal transmission capability may be compromised
Solution Approach 1:
The RFID tag uses thin film antenna structures and flexible circuit boards that can be made transparent or translucent. These thin-film constructions maintain electromagnetic signal transmission capability while being visually unobtrusive and suitable for integration into transparent surfaces like glass or clear plastic.
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 reduces power consumption, enhances user interaction flexibility, and lowers costs by enabling efficient control of electronic devices through physical interaction, while maintaining a compact and transparent design.
Implementation Method 1
The antenna is configured to return a modified signal to an RFID reader when a user physically interacts with the interactive switch
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An RFID tag is provided with an RFID chip and an antenna and interactive switch electrically coupled to the RFID chip. When a user physically interacts with the switch (such as by pressing the switch with a finger), the antenna transmits an input signal to an RFID reader of an RFID-based control system. The RFID reader, in turn, transmits a control signal to an electronic device for controlling the device. The RFID tag may be incorporated into any of a number of devices, such as a keyboard or article of clothing, and can function to operate a variety of electronic devices, including audio-visual devices and gaming systems.