Bus Network System with Physical Switches for Collision Prevention

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Solution Overview

Problem

In bus network systems, data collisions occur due to shared communication channels among nodes, leading to inefficient data transmission and potential damage from unintended inter-node currents, especially when multiple nodes transmit simultaneously.

Innovation Solution

The implementation of a bus network system using physical switches, including a master node switch and slave node switches with band limit switches, which are physically controlled to manage network traffic and prevent collisions by selectively turning on/off switches based on bandwidth information and network traffic conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple nodes transmit data simultaneously through a shared bus channel, then network throughput increases, but data collisions occur and transmission reliability deteriorates

Engineering Contradiction:

Improvenetwork throughputVSAvoiddata transmission reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The bus network is segmented into multiple isolated paths using physical switches. Each switch creates dedicated transmission paths between node pairs, dividing the shared bus into multiple independent segments. This allows simultaneous data transmission on different paths without collisions, improving both throughput and reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Physical switches are introduced as intermediary devices between nodes to control and manage data flow. These switches act as mediators that establish dedicated connections, prevent unauthorized access to other nodes' data, and eliminate collisions by controlling which node pairs can communicate simultaneously.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If multiple nodes share a common bus channel, then device complexity is reduced, but unintended inter-node currents cause harmful effects

Engineering Contradiction:

Improvenetwork structure complexityVSAvoidunintended inter-node currents

Core Design Contradiction:

Device complexityVSObject-generated harmful factors

Solution Approach 1:

The electrical bus is divided into multiple isolated segments by physical switches. Each switch creates electrically isolated paths that prevent unintended current flow between non-communicating nodes. This segmentation maintains relatively simple device structures while eliminating harmful inter-node currents.

Inventive Principle:

Principle #1Segmentation

3Reliability

If physical switches are used to control node connections, then data collision prevention improves, but device complexity increases

Engineering Contradiction:

Improvedata collision preventionVSAvoidswitch control structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Multiple switch control functions are merged into a centralized controller that manages all physical switches. This consolidation reduces the overall system complexity by providing unified control logic, while still achieving reliable data collision prevention through coordinated switch management.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS10897377B2System for network using bus protocol

Publication Date: 2021.01.19 DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY

AI summary

Provided is a bus network system including: a master node switch; and a plurality of slave node switches, wherein each of the plurality of slave node switches includes at least one band limit switch configured to transmit signals in a given band, and each of the plurality of slave node switches is configured to be physically on/off controlled.