Ultrasonic ID Devices Using Membrane Drums
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
RFID devices are often too large and costly for certain applications, necessitating a smaller and more affordable identification solution.
Innovation Solution
Ultrasonic identification devices utilizing membrane drums made of graphene or polyester films, which produce unique resonant frequencies through pressurized airflow, eliminating the need for batteries or power sources and allowing for mass production at a lower cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RFID devices are used for identification and tracking, then identification capability is achieved, but device size and cost increase
Solution Approach 1:
The patent extracts and eliminates the battery and integrated circuit components from traditional RFID devices, retaining only the essential identification function through passive ultrasonic resonance. This removes the power source and processing unit, dramatically reducing device size and cost while maintaining identification capability through the resonant frequency response of the membrane drum alone.
Solution Approach 2:
The invention employs inexpensive membrane drums made from materials like polyester film or graphene that can be mass-produced at very low cost. These simple mechanical resonators replace expensive electronic components, enabling disposable or temporary identification applications where low cost is critical.
2Reliability
If RFID devices are used for identification and tracking, then identification capability is achieved, but device cost increases
Solution Approach 1:
The patent removes the expensive integrated circuit and battery components from traditional RFID devices, retaining only the essential identification function through passive ultrasonic resonance. This eliminates the need for complex electronics manufacturing and reduces production costs significantly.
Solution Approach 2:
The invention employs inexpensive membrane drums made from materials like polyester film or graphene that can be mass-produced at very low cost. These simple mechanical resonators replace expensive electronic components, enabling cost-effective identification solutions for mass application.
Solution Approach 3:
The patent replaces the electronic system (integrated circuit, antenna, battery) with a mechanical resonance system using membrane drums. This mechanical approach simplifies manufacturing and reduces costs while maintaining the core identification function through resonant frequency detection.
3Volume of moving object
If membrane drums are used to generate ultrasonic signals, then device size is reduced, but signal production mechanism changes
Solution Approach 1:
The membrane drums are designed to self-resonate when exposed to ultrasonic sound waves, eliminating the need for external power sources or complex signal generation circuits. The mechanical structure itself generates the ultrasonic response signal through its natural resonant frequency, simplifying the overall device architecture.
Solution Approach 2:
The invention uses mechanical vibration and resonance of membrane drums to generate and respond to ultrasonic signals. The membrane drums vibrate at their natural resonant frequencies when excited by ultrasonic waves, producing identifiable acoustic signals without requiring electronic amplification or processing.
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 ultrasonic identification devices are compact, cost-effective, and capable of producing unique ultrasonic signals, making them suitable for various applications, including inventory management and security, with the potential to be produced in high quantities at a low cost.
Implementation Method 1
The plurality of the weighted membrane drums are operable to resonate in response to a first ultrasonic sound signal. The resonance of the plurality of the weighted membrane drums is operable to produce a second ultrasonic sound signal.
Data Source
AI summary
Ultrasonic identification devices, and methods of making and use same. The present invention further relates to ultrasonic ID devices using membranes (such as membranes made of graphene or a polyester film).