Electromagnetic Imaging System Interference Detection and Control

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Solution Overview

Problem

Electromagnetic imaging systems face interference from radiation in similar frequency ranges used by technologies like 5G telecommunication, leading to disturbances or complete hindrance in imaging procedures, with existing solutions being costly to implement.

Innovation Solution

An electromagnetic imaging system equipped with a transmit antenna, multiple receive antennas, a control unit, and an interference detection unit that analyzes interference signals and adjusts operational parameters such as frequency and power levels to minimize interference, allowing the system to operate reliably in the presence of interference radiation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the electromagnetic imaging system uses frequencies in the 5G telecommunication range, then the system can operate in a cost-efficient manner without restricted frequency bands, but interference radiation from telecommunication technologies disturbs or hinders the imaging procedure

Engineering Contradiction:
Improvefrequency band flexibilityVSAvoidinterference radiation
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The interference detection unit continuously monitors the measurement signal for interference radiation before and during the imaging procedure. By detecting interference signals in advance and during operation, the system can take preliminary actions to mitigate interference effects, such as adjusting operational parameters or delaying the imaging procedure until interference levels are acceptable.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The interference detection unit provides real-time feedback about the presence and strength of interference signals to the control unit. This feedback loop enables the control unit to dynamically adjust operational parameters such as frequency, power levels, or timing of the imaging procedure to minimize the impact of interference radiation while maintaining cost-efficient frequency usage.

Inventive Principle:
Principle #23Feedback

2Reliability

If the system delays or replans the imaging procedure when interference is detected, then the imaging can be performed when interference is minimal, but the productivity and time efficiency of the imaging system decreases

Engineering Contradiction:
Improveimaging qualityVSAvoidimaging throughput
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The imaging procedure is made dynamic rather than static. The control unit continuously adjusts the timing, frequency, and power parameters of the imaging procedure based on real-time interference conditions. This allows the system to perform imaging when interference is low and adapt quickly when interference increases, optimizing both reliability and productivity through flexible, dynamic operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The interference detection unit operates periodically or continuously to monitor interference levels, and the control unit implements periodic adjustments to the imaging procedure. By using periodic monitoring and adjustment cycles, the system can maintain high productivity while ensuring imaging quality through regular checks and adaptations to interference conditions.

Inventive Principle:
Principle #19Periodic action

3Adaptability or versatility

If the system adjusts operational parameters such as frequency and power levels to minimize interference, then the imaging can proceed in the presence of interference radiation, but the device complexity increases due to additional control mechanisms

Engineering Contradiction:
Improveoperation in interference environmentVSAvoidcontrol unit functionality
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control unit is designed with multi-functionality, serving both as the operational controller for the imaging procedure and as the coordinator for interference mitigation strategies. By integrating interference detection coordination and operational parameter adjustment into the existing control unit, the system achieves adaptability to interference environments without proportionally increasing device complexity.

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

Solution Approach 2:

The system implements self-service mechanisms where the interference detection unit automatically monitors and reports interference conditions, and the control unit automatically adjusts operational parameters without requiring external intervention. This self-service approach enables the system to adapt to interference environments autonomously, reducing the need for additional complex external control systems.

Inventive Principle:
Principle #25Self-service

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 reliable operation of electromagnetic imaging systems in the presence of interference radiation by detecting and analyzing interference signals, adjusting operational characteristics to mitigate their impact, thereby ensuring effective imaging without the need for expensive interference-free environments or restricted frequency use.

Implementation Method 1

The at least one transmit antenna is configured to generate radio frequency signals with at least one planned frequency at several planned times

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

The multiple receive antennas are configured to receive radio frequency signals and to generate a corresponding measurement signal

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS10895630B2Electromagnetic imaging system and method for operating an electromagnetic imaging system
Publication Date: 2021.01.19 ROHDE & SCHWARZ GMBH & CO KG
  • US10895630B2 patent drawing
  • US10895630B2 patent drawing

AI summary

An electromagnetic imaging system for creating an image of an object is disclosed. The electromagnetic imaging system comprises at least one transmit antenna, multiple receive antennas, a control unit, a processing unit, and an interference detection unit. The at least one transmit antenna is configured to generate radiofrequency signals with at least one planned frequency at several planned times. The multiple receive antennas are configured to receive radiofrequency signals and to generate a corresponding measurement signal. The control unit is configured to control at least the multiple transmit antennas. The processing unit is configured to process the measurement signal into the image of the object. The interference detection unit is configured to detect and analyze an interference signal in the measurement signal, and the interference detection unit is connected to the control unit in a signal transmitting manner so as to control the control unit. Moreover, a method for operating an electromagnetic imaging system is disclosed.