AEPH Chip Reader RF Parameter Control for Power-Aware Operations
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Solution Overview
Problem
Conventional RFID chip readers are limited in their ability to interface with the diverse operations provided by ambient electromagnetic power harvesting (AEPH) chips, which require advanced power management and specific RF parameter configurations.
Innovation Solution
The development of an AEPH reader-writer device that selectively controls RF parameters such as frequency, power level, and beam width of ambient electromagnetic signals transmitted to AEPH chips, allowing for different operational tasks to be invoked based on the specific RF configuration used.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional RFID scanning devices are used to interface with AEPH chips, then basic reading functionality is available, but the ability to control different operational tasks and power management is limited
Solution Approach 1:
The reader-writer device is designed to perform multiple functions by selectively controlling RF parameters (frequency, power level, beam width) to invoke different operational tasks from the AEPH chip. The device can switch between reading modes, writing modes, and different power management configurations, making it a universal interface for various AEPH chip operations rather than being limited to basic scanning.
Solution Approach 2:
The device dynamically adjusts RF parameters based on the operational task being performed. The RF parameter selection processor changes frequency, power level, and beam width settings in real-time depending on which function is being invoked from the AEPH chip, allowing adaptive control without requiring multiple fixed-function devices.
2Adaptability or versatility
If multiple RF parameter configurations are implemented to support different AEPH chip operations, then adaptability improves, but device complexity increases
Solution Approach 1:
Multiple RF parameter configurations are pre-programmed into the reader-writer device before operation. The device stores various frequency, power level, and beam width settings that can be quickly selected based on the operational task, eliminating the need for complex real-time calculations and reducing the complexity of dynamic parameter generation.
Solution Approach 2:
The RF parameter selection processor uses feedback from the operational task requirements to automatically select the appropriate pre-programmed RF parameter configuration. This feedback mechanism simplifies control by allowing the system to autonomously match the right parameters to the right task without requiring complex manual configuration or real-time optimization algorithms.
3Use of energy by moving object
If higher power levels are transmitted to AEPH chips, then power harvesting capability improves, but energy consumption by the reader-writer device increases
Solution Approach 1:
The device changes RF power level parameters dynamically based on the operational task and distance to the AEPH chip. By adjusting the power level parameter to match the specific requirements of each operation, the system maximizes power harvesting at the chip while minimizing unnecessary energy consumption at the reader-writer device.
Solution Approach 2:
The system transmits only the necessary amount of power required for each specific operation rather than continuously transmitting at maximum power. By applying partial action (just enough power for the task), the system achieves sufficient power harvesting for the AEPH chip operations while avoiding excessive energy consumption at the reader-writer device.
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 enables the AEPH reader-writer to efficiently communicate with AEPH chips, triggering appropriate processing resources and managing power consumption effectively, thereby enhancing the functionality and efficiency of AEPH chip operations.
Implementation Method 1
an AEPH chip receives power for operating the electronic circuits of the chip by harvesting power from the EM signals it receives
Data Source
AI summary
Systems and methods for ambient electromagnetic power harvesting (AEPH) chip reader-writer devices are provided that selectively control RF parameters of electro-magnetic (EM) signals transmitted to an AEPH chip. In embodiments, the selection of which RF parameter configuration is applied when transmitting an EM signal is determined by an RF parameter selection processor based on the function being invoked from the AEPH chip. In one embodiment, an AEPH chip reader-writer selects a first configuration of radio frequency (RF) parameters from a plurality of RF parameters based on a determination of a first operation for execution by an ambient electromagnetic power harvesting chip; configures an RF transmit path circuit to use the first configuration of RF parameters; and initiates execution of the first operation in the ambient electromagnetic power harvesting chip by transmitting via the RF transmit path circuit a first electromagnetic signal using the first configuration of RF parameters.