RFID Tag Dynamic Power Mode Switching
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Solution Overview
Problem
Current RFID tag designs are limited to a single setting of center-frequency, frequency response, and bandwidth, making them inflexible and unable to adapt to different application needs, such as close-coupled tags or tags on various materials, and struggle to efficiently switch between low and high power modes.
Innovation Solution
An RFID device with a control unit and processing unit that can switch between low and high power modes based on configuration signals, allowing for optimization of center-frequency, frequency response, and bandwidth, enabling the device to adapt to specific application requirements by modifying its operating parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single setting of center-frequency, frequency response, and bandwidth is used in RFID tag design, then the device complexity is reduced, but the adaptability to different application needs deteriorates
Solution Approach 1:
The patent implements dynamic reconfigurability in RFID tags by introducing control units that can switch between different operating states (first and second states) based on application requirements. This allows the tag to dynamically adjust its center-frequency, frequency response, and bandwidth settings rather than being fixed, thereby achieving adaptability without proportionally increasing complexity.
Solution Approach 2:
The patent changes the operating parameters of the RFID tag by providing multiple predefined configurations for center-frequency, frequency response, and bandwidth. The control unit selects appropriate parameter sets based on the application scenario, enabling the same hardware to adapt to different materials and coupling conditions through parameter switching rather than hardware redesign.
2Use of energy by moving object
If low power mode is used in RFID tags, then energy consumption is reduced, but the functionality and performance deteriorate
Solution Approach 1:
The patent implements dynamic power mode switching between low power mode and high power mode based on application requirements. The control unit determines the appropriate operating state and switches the tag accordingly, allowing the system to consume minimal power during normal operation while being capable of transitioning to full functionality when needed, thus resolving the contradiction between energy savings and functional capability.
Solution Approach 2:
The patent creates a universal RFID tag design that can perform multiple functions across different power modes. The same hardware infrastructure supports both low power operation and high power extended functionality, allowing the tag to adapt its capability set based on the application scenario rather than requiring separate hardware for each mode.
3Adaptability or versatility
If high power mode is used in RFID tags, then extended functionality is achieved, but energy consumption increases
Solution Approach 1:
The patent implements dynamic power mode switching between low power mode and high power mode based on application requirements. The control unit determines the appropriate operating state and switches the tag accordingly, allowing the system to consume minimal power during normal operation while being capable of transitioning to full functionality when needed, thus resolving the contradiction between energy savings and functional capability.
4Reliability
If RFID tags are designed for specific applications with optimized parameters, then performance in that application is improved, but the ability to operate on different materials and configurations deteriorates
Solution Approach 1:
The patent changes the operating parameters of the RFID tag by providing multiple predefined configurations for center-frequency, frequency response, and bandwidth. The control unit selects appropriate parameter sets based on the application scenario, enabling the same hardware to adapt to different materials and coupling conditions through parameter switching rather than hardware redesign.
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
Enables efficient operation in both low and high power modes, extending the range and functionality of RFID tags, and allowing them to operate on different materials and in close-coupled configurations, thereby improving their performance and energy management.
Implementation Method 1
Such systems use the emission and reflection/absorption of electromagnetic waves, particularly in the high frequency domain
Data Source
AI summary
An RFID device (100) being operable in a first and a second operating state, the RFID device comprises a control unit (102), wherein the control unit comprises a configuration input terminal for receiving a configuration signal, and a processing unit (101), which is coupled to the control unit, wherein the control unit is adapted for switching the processing unit between the first and the second operating state based on the configuration signal, wherein the control unit (102) comprises an activation input terminal for receiving an activation signal.