Field Device Inductive Data Galvanic Power Interface
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Solution Overview
Problem
Existing field devices and remote stations face limitations in transmitting energy and data due to the constraints of inductive interfaces, particularly in terms of maximum power transmission, which hinders efficient communication and operation in process automation systems.
Innovation Solution
A field device and remote station configuration that includes multiple inductive interfaces for energy and data transmission, with a first interface for receiving data and a second interface for receiving energy, along with a coupling body for secure and hermetically sealed connections, allowing for flexible and high-power communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a single inductive interface is used for both energy and data transmission, then device complexity is reduced, but power transmission capability is limited
Solution Approach 1:
The patent divides the interface system into separate functional components: a first inductive interface dedicated to data transmission and a second interface (inductive or galvanic) dedicated to energy transmission. This segmentation allows each interface to be optimized for its specific function, enabling higher power transmission through the second interface while maintaining data communication through the first interface, thereby resolving the contradiction between power capability and device complexity.
2Power
If inductive coupling is used for interface connection, then ease of operation is improved, but power transmission is limited
Solution Approach 1:
The patent merges two different coupling technologies: inductive coupling (for ease of operation and data transmission) and galvanic coupling (for high power transmission). The field device includes both a first inductive interface and a second galvanic interface, allowing the system to leverage the advantages of both methods: contactless data communication through inductive coupling and high-power energy transmission through galvanic coupling, thus resolving the contradiction between ease of operation and power transmission capability.
3Power
If multiple interfaces are added for high-power transmission, then power capability is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal field device design where the coupling body integrates multiple interfaces (first inductive interface for data, second interface for energy) that can work together as a unified system. The control unit coordinates both interfaces to perform their respective functions, creating a multi-functional device that achieves high power transmission capability while managing complexity through integrated design and centralized control.
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
This configuration enables more universal and efficient energy and data transmission between field devices and remote stations, supporting high-performance sensors and remote stations, and ensuring compatibility with various sensor types, thereby enhancing the operational capabilities in process automation systems.
Implementation Method 1
a first inductive interface, at least for transmitting and receiving data
Implementation Method 2
at least one second interface at least for receiving energy
Data Source
AI summary
The present disclosure relates to a field device, comprising: a first inductive interface, at least for transmitting and receiving data, especially for transmitting a value dependent on the measured condition; at least one second interface at least for receiving energy; and a first coupling body comprising the first, inductive interface and the second interface.