Signal Processor Isolation for Wireless Noise Reduction

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Solution Overview

Problem

Conventional signal processing devices that combine wireless communication and signal processing functions in a compact configuration face challenges due to electrical interference and noise, leading to larger device sizes and susceptibility to noise from wireless communication components.

Innovation Solution

Incorporating an isolator to separate components of the signal processor from the wireless communicator, allowing for a compact housing while reducing noise interference and mutual influence between channels, and enabling automatic sensor reactivation upon detection of abnormalities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If wireless communication and signal processing functions are combined in a compact configuration, then device size is reduced, but electrical interference and noise increase

Engineering Contradiction:

Improvedevice sizeVSAvoidelectrical interference and noise

Core Design Contradiction:

Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The device is segmented into distinct functional modules: wireless communication unit, signal processing unit, and sensor unit. Each module is electrically isolated from the others using isolation techniques, allowing them to be housed in a compact configuration while preventing electrical interference and noise propagation between modules.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Isolation mechanisms serve as intermediary elements between the wireless communication unit and signal processing unit. These intermediaries block harmful electrical interference and noise while allowing necessary signal transmission, enabling compact integration without compromising signal quality.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Volume of moving object

If wireless communication components are placed close to signal processing components, then device size is reduced, but susceptibility to noise increases

Engineering Contradiction:

Improvedevice sizeVSAvoidnoise susceptibility

Core Design Contradiction:

Volume of moving objectVSReliability

Solution Approach 1:

The device architecture divides functionality into separate units (wireless communication unit, signal processing unit, sensor unit) that can be physically close yet electrically isolated. This segmentation maintains compact size while protecting sensitive signal processing from wireless communication noise through electrical isolation barriers.

Inventive Principle:

Principle #1Segmentation

3Object-affected harmful factors

If isolation components are added to separate signal processing from wireless communication, then noise interference is reduced, but device complexity increases

Engineering Contradiction:

Improvenoise interferenceVSAvoiddevice complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Multiple functions (wireless communication, signal processing, sensing) are merged into a single integrated device housing. The isolation mechanisms are incorporated as integral parts of this unified structure, reducing overall device complexity compared to separate standalone components while still providing effective noise isolation.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20240063828A1Signal processing device

Publication Date: 2024.02.22 YOKOGAWA ELECTRIC CORP

AI summary

A signal processing device includes: a signal processing device configured to process a signal input from a sensor; a wireless communicator configured to wirelessly communicate a signal based on output of the signal processor to an external device; and an isolator that isolates at least a portion of components of the signal processor from the wireless communicator.