Proximity Sensor Activates Pressure Array via Resonance Shift
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Solution Overview
Problem
Existing pressure sensor systems are inefficient and computationally intensive due to the need for multiple scans to determine the amount of force exerted by an object, often resulting in the transmission of irrelevant data and slowing down the process of obtaining relevant data.
Innovation Solution
A system utilizing a proximity sensor to detect an approaching object by measuring changes in resonance frequency, allowing the controller to designate specific pressure sensor arrays as active or inactive, thereby focusing data transmission on areas where force is applied, using inductor-capacitor circuits and compliant cells filled with electromagnetic fluid to measure force deformation efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional scanning techniques are used to determine force exerted by an object, then comprehensive data can be collected, but the process becomes computationally intensive and time-consuming
Solution Approach 1:
The system performs preliminary scanning to identify regions where objects are present before conducting detailed force measurements. This preliminary action filters out irrelevant areas, allowing the system to focus computational resources only on regions where force measurement is necessary, thereby reducing overall processing time while maintaining measurement accuracy.
Solution Approach 2:
The scanning area is divided into multiple regions, and the system selectively scans only those regions where objects are detected. This segmentation approach avoids the computational overhead of scanning entire areas uniformly, reducing data acquisition time while ensuring accurate force measurement in relevant regions.
2Measurement precision
If multiple scans are performed to determine force amount, then measurement accuracy can be improved, but device complexity and computational requirements increase
Solution Approach 1:
The system performs a preliminary scan to identify object locations before conducting detailed force measurements. This two-stage approach allows the system to achieve accurate force measurements through targeted scanning rather than multiple comprehensive scans, reducing computational complexity while maintaining measurement precision.
Solution Approach 2:
Instead of performing multiple complete scans of the entire area, the system performs partial scans focused only on regions where objects are present. This partial action approach achieves sufficient measurement accuracy without the computational burden of multiple full-area scans, simplifying the overall system complexity.
3Reliability
If all pressure sensor arrays are scanned continuously, then no relevant data is missed, but irrelevant data transmission increases and efficiency decreases
Solution Approach 1:
The system performs preliminary scanning to identify regions with objects before conducting detailed force measurements. This allows the system to transmit only relevant data from regions where objects are present, ensuring data completeness for force measurement while eliminating unnecessary data transmission from empty regions, thereby improving processing efficiency.
Solution Approach 2:
The system extracts and transmits only the relevant data from regions where objects are detected, separating useful information from irrelevant data. This extraction approach maintains reliability by ensuring all relevant force data is captured while improving productivity by reducing the volume of irrelevant data that needs to be transmitted and processed.
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 approach significantly reduces the time and computational resources required to determine the amount of force exerted by an object, enhancing the efficiency of data transmission and reducing irrelevant data transmission, making it a more effective method compared to traditional scanning techniques.
Implementation Method 1
A system utilizing a proximity sensor to detect an approaching object by measuring changes in resonance frequency
Implementation Method 2
using inductor-capacitor circuits and compliant cells filled with electromagnetic fluid to measure force deformation efficiently
Data Source
AI summary
An example system comprising a pressure sensor array, a proximity sensor comprising circuitry to sense an object approaching the pressure sensor array based on a change in a resonance frequency of the proximity sensor, and a controller to receive from the proximity sensor the sensed change in the resonance frequency and designate the pressure sensor array as active responsive to the sensed resonance frequency being below a threshold or inactive responsive to the sensed resonance frequency being above the threshold, wherein a data transmission rate of the active pressure sensor array is greater than a data transmission rate of the inactive pressure sensor array.