Moving Body Optical Communication System Without Electro-Optical Conversion

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Solution Overview

Problem

Conventional moving body communication systems experience delays and high latency due to the need for modulation, demodulation, and protocol conversion when transmitting large amounts of data, especially when using optical communication, which complicates the process and increases power consumption.

Innovation Solution

A communication system that eliminates the need for conversion between light and electrical signals, using optical fibers for direct communication between the moving body and external networks, thereby bypassing modulation, demodulation, and protocol conversion processes, and incorporating an optical amplifier to reduce signal attenuation and error rates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If modulation and demodulation processing is performed in relay devices for optical communication, then protocol conversion and signal conversion can be achieved, but communication latency increases and transmission speed decreases

Engineering Contradiction:

Improveprotocol conversion capabilityVSAvoidcommunication latency

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent extracts and removes the modulation/demodulation processing function from relay devices in the optical communication path. By eliminating these conversion devices from the data transmission path, the system achieves direct optical signal transmission without intermediate conversions, thereby reducing communication latency while maintaining protocol conversion capabilities through alternative means at endpoint devices.

Inventive Principle:

Principle #2Taking out (Extraction)

2Ease of operation

If optical signals are converted to electrical signals and back to optical signals in relay devices, then signal processing and routing can be performed, but transmission speed decreases and communication time increases

Engineering Contradiction:

Improvesignal processing capabilityVSAvoidtransmission speed

Core Design Contradiction:

Ease of operationVSSpeed

Solution Approach 1:

The patent substitutes optical switching technology for traditional electro-optical conversion systems. Instead of converting optical signals to electrical signals for processing and then back to optical signals, the system uses all-optical switching devices that can directly route and process optical signals, eliminating conversion bottlenecks and significantly improving transmission speed.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If relay devices with modulation and demodulation are used for data transmission, then protocol conversion can be achieved, but large amount of data cannot be transmitted in short period

Engineering Contradiction:

Improveprotocol conversion functionVSAvoiddata transmission throughput

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent establishes continuous optical signal transmission through the network by eliminating electro-optical conversion stops. The optical communication system maintains uninterrupted signal flow through optical switches and direct optical connections, allowing large volumes of data to be transmitted continuously at high speeds without the periodic interruptions caused by modulation/demodulation cycles.

Inventive Principle:

Principle #20Continuity of useful action

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 high-speed, low-latency data transmission and reduces power consumption by eliminating unnecessary processing steps and signal conversions, allowing for efficient transfer of large data volumes without protocol or media conversion between the moving body and external networks.

Implementation Method 1

incorporating an optical amplifier to reduce signal attenuation and error rates

Methodology Applied

Scientific EffectOptical amplification:

Implementation Method 2

each of the first transmission line, the second transmission line and the third transmission line is an optical fiber, and the information form is an optical signal

Methodology Applied

Scientific EffectOptical signal transmission: Optical Fibre

Data Source

PatentUS11546009B2Moving body-mounted communication system and communication system

Publication Date: 2023.01.03 YAZAKI CORP

AI summary

A moving body-mounted communication system includes an internal connector, a third transmission line and a first information transmitting and receiving device. The internal connector is mounted in a moving body and connected to an external connector which is connected to a second transmission line. The third transmission line is arranged in the moving body and connected to the internal connector. The first information transmitting and receiving device is connected to the third transmission line. Information is transferred between a first transmission line used in an information and communication network outside the moving body and the second transmission line, and is transferred between the second transmission line and the third transmission line, without performing conversion of the information form of the information between light and electricity.