Ambient Power Harvesting Chip with Tiered RFID Processing
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Solution Overview
Problem
Conventional RFID chips lack power management capabilities to adapt operations based on varying levels of ambient electromagnetic power, limiting their functionality and security when exposed to different power intensities.
Innovation Solution
An ambient electromagnetic power harvesting (AEPH) chip that receives energy from multiple power levels, enabling different operation modes by activating additional processors, memory, and radio transceiver functions when moderate or high power is available, allowing for secure communication and data processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional RFID chips operate without power management capabilities, then they maintain simplicity and low cost, but they cannot adapt operations based on varying power levels, limiting functionality and security
Solution Approach 1:
The system dynamically adapts its operational mode based on available power levels. When high power is detected from the electromagnetic field, the chip activates advanced features including secure processing zones and memory writing capabilities. When power levels drop, the system automatically transitions to basic identification modes, ensuring continuous operation while maintaining security and functionality appropriate to available energy resources.
Solution Approach 2:
The chip monitors and responds to changes in power parameters by adjusting its operational state. Different power threshold levels trigger transitions between operational modes, enabling the system to optimize performance and security features based on real-time energy availability from the ambient electromagnetic field.
2Reliability
If the AEPH chip activates additional processors and memory functions when high power is available, then enhanced functionality and security are achieved, but energy consumption increases
Solution Approach 1:
The system dynamically activates or deactivates processing zones based on power availability. A trusted security zone processor and memory writing capabilities are enabled only when sufficient power is detected, providing enhanced security and functionality during high-power periods while conserving energy during low-power conditions.
Solution Approach 2:
The chip performs preliminary power level assessment before activating energy-intensive operations. By detecting available power from the electromagnetic field in advance, the system determines whether it can safely activate secure processing zones and memory functions, preventing energy depletion while maintaining security when conditions permit.
3Reliability
If the chip performs secure data processing and memory writing operations, then data security and functionality are improved, but the operational requirements become more stringent
Solution Approach 1:
The system dynamically adjusts operational complexity based on power availability. Secure data processing and memory writing operations are activated only when power thresholds are met, automatically simplifying operations when power is limited while maintaining high security standards when energy resources are sufficient.
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 enhanced functionality, including secure data processing and communication, by leveraging higher power levels to perform tasks that consume more energy, such as writing to memory and engaging in secure wireless links, while conserving energy at lower power levels.
Implementation Method 1
receiving energy from a first ambient electromagnetic field by an AEPH chip
Data Source
AI summary
A method of communicating information from an ambient electromagnetic power harvesting (AEPH) chip. The method comprises receiving energy from a first ambient electromagnetic field by an AEPH chip, wherein the first ambient electromagnetic field provides a first level of power; based on energy received from the first ambient electromagnetic field, performing a first tier of processing by a processor of the AEPH chip; receiving energy from a second ambient electromagnetic field by the AEPH chip, wherein the second ambient electromagnetic field provides a second level of power that is greater than the first level of power; determining by the processor that the second level of power is above a predefined threshold; and based on the second ambient electromagnetic field being above the predefined threshold, performing a second tier of processing by the processor, wherein the second tier of processing comprises writing information by the processor into a non-transitory memory.