Optical State Detection Across EMI-Isolated Device Enclosures

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Solution Overview

Problem

High-density environments face challenges in managing electromagnetic interference (EMI) from tightly packed devices, affecting thermal management, mechanical positioning, and electrical operations.

Innovation Solution

A data processing device with an internal volume for EMI isolation and an optical state detector that determines the optical state of devices within, allowing for effective EMI management and granular control of device operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If devices are tightly packed together in high-density environment, then device density and space utilization are improved, but electromagnetic interference between devices increases

Engineering Contradiction:
Improvedevice densityVSAvoidelectromagnetic interference
Core Design Contradiction:
Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The system divides the device environment into isolated segments using EMI isolation mechanisms. Each device or device group is contained within its own electromagnetically isolated space, preventing interference from propagating to other segments while maintaining high device density in the overall system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Optical communication serves as an intermediary mechanism between isolated device segments. Data and control signals are transmitted through optical fields that can penetrate EMI isolation barriers, enabling communication without direct electromagnetic coupling between devices.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-generated harmful factors

If EMI isolation is implemented for devices, then electromagnetic interference propagation is reduced, but detection and monitoring of device operational state becomes more difficult

Engineering Contradiction:
ImproveEMI propagationVSAvoiddevice operational state detection
Core Design Contradiction:
Object-generated harmful factorsVSDifficulty of detecting and measuring

Solution Approach 1:

An optical field acts as an intermediary to detect device operational states through the EMI isolation barrier. The optical state detector uses optical fields to sense device states without requiring direct electromagnetic access, thereby maintaining isolation while enabling monitoring.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system replaces traditional electromagnetic detection methods with optical detection. By using optical fields instead of electromagnetic fields for detection, the system can penetrate EMI isolation barriers and detect device states without compromising the isolation effectiveness.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If optical state detection is used to monitor devices in EMI isolated environment, then operational state determination accuracy is improved, but system complexity increases

Engineering Contradiction:
Improveoperational state determination accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The optical state detector serves multiple functions simultaneously: it communicates device operational states, enables optical communication through the isolation barrier, and provides monitoring capabilities. This multi-functionality reduces the need for separate systems and mitigates the increase in overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution significantly reduces EMI propagation by at least 90 decibels, enabling the use of EMI-emitting devices in high-density environments without disrupting operations and improving the accuracy of operational state determinations.

Implementation Method 1

an optical state detector to detect an optical state of the device. The optical state detector detects electromagnetic radiation from the device, disposed in the internal volume

Methodology Applied
Scientific EffectElectromagnetic radiation detection: Photoelectric Effect

Data Source

PatentUS11906438B2System and method for optical state determination
Publication Date: 2024.02.20 DELL PROD LP
  • US11906438B2 patent drawing
  • US11906438B2 patent drawing
  • US11906438B2 patent drawing

AI summary

A method for managing electromagnetic interference (EMI) includes: obtaining electromagnetic radiation from a device, disposed in an internal volume of a data processing device, while the internal volume is EMI isolated and after the device performs a function; making a determination that the device disposed in the internal volume has an optical state associated with the electromagnetic radiation; and performing a first action set based on the determination, in which the electromagnetic radiation is obtained through a boundary of the internal volume.