Fieldbus Ethernet Coexistence via Boundary Frequency
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Solution Overview
Problem
Existing communication systems in industrial and transport installations, such as those using fieldbus, are limited by their data flow capacity, requiring additional wiring for new services or modifications, which complicates installations and prevents updates due to the need for new physical media.
Innovation Solution
A communication system that allows simultaneous data transmission through the same physical medium using a field protocol for basic communications and an additional protocol like IP for higher data flow services, without adding new wiring, by determining a boundary frequency that ensures coexistence without data loss or interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If fieldbus is used for communication, then cost-effective physical medium is achieved, but data flow capacity is limited
Solution Approach 1:
The patent combines fieldbus and Ethernet protocols into a single communication infrastructure. The gateway device enables both protocols to coexist on the same physical medium (cable system), allowing existing fieldbus wiring to support both traditional fieldbus communication and high-bandwidth Ethernet services without requiring separate wiring for each protocol.
Solution Approach 2:
The communication system is designed to be universal by supporting multiple protocols (fieldbus and Ethernet) on the same physical infrastructure. The gateway device acts as a multi-functional component that can translate between different protocols and manage simultaneous transmissions, making the wiring system versatile enough to handle both low-bandwidth fieldbus services and high-bandwidth Ethernet services.
2Quantity of substance
If new wiring is added for new services, then data flow capacity is improved, but installation complexity increases
Solution Approach 1:
The patent merges multiple communication protocols onto a single physical wiring infrastructure. By using the gateway device to enable simultaneous fieldbus and Ethernet transmissions over the same cable system, new high-data-flow services can be added without installing new wiring, thus maintaining installation simplicity while increasing data flow capacity.
3Quantity of substance
If multiple protocols are transmitted simultaneously, then data flow capacity is improved, but signal interference may occur
Solution Approach 1:
The gateway device dynamically manages the simultaneous transmission of fieldbus and Ethernet signals by adapting to the specific requirements of each protocol. It can adjust transmission parameters, timing, and signal characteristics in real-time to prevent interference, ensuring that both protocols can coexist reliably on the same physical medium without degrading signal integrity.
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 the integration of new services with high data flow in existing installations without disrupting existing communications, reducing installation complexity and cost, and allowing for simpler updates by using the same physical medium for both protocols.
Implementation Method 1
a boundary frequency is determined above which a second data transmission is performed by means of the second protocol, and below which a first data transmission is performed by means of a field protocol
Data Source
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Figure 3~4
AI summary
Communication system and method for simultaneous data transmissions between nodes (2), through a physical medium (3) to which said nodes (2) are connected. The nodes (2) communicate with one another through the physical medium (3) by means of a given field protocol, and, simultaneously, by means of a given additional protocol adapted for supporting a data flow larger than the data flow that the field protocol is able to support. The nodes (2) communicate by means of the field protocol in a frequency spectrum below a boundary frequency and by means of the additional protocol in a frequency spectrum above said boundary frequency, said boundary frequency being high enough to prevent what is transmitted by means of said additional protocol from significantly altering what is transmitted by means of the field protocol.