Universal Wireless Adapter Interface for Field Devices
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Solution Overview
Problem
Conventional wireless adapters lack flexibility to be easily connected and integrated into various field installations, including two-wire and four-wire devices, and operating devices, due to complex implementation requirements.
Innovation Solution
A universal interface with at least five connection terminals that can be configured to support different field devices and operating devices, allowing for flexible connection options by utilizing multiple terminal functions and ensuring explosion-proof operation through voltage and current limitation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless adapter is designed with a fixed interface configuration for specific field devices, then the device can be manufactured with simpler internal wiring, but the adapter lacks flexibility to be integrated into various field installations including two-wire and four-wire devices
Solution Approach 1:
The interface is designed with five connection terminals (A, B, C, Da, Db, E) that can serve multiple functions depending on the connected field device. The same terminals can accommodate two-wire field devices, four-wire field devices, and operating devices through different connection configurations, making the wireless adapter universally applicable without requiring device-specific interface designs
Solution Approach 2:
The interface configuration is made dynamic through selectable connection options. The wireless adapter can dynamically reconfigure which terminals are connected to which functions based on the type of field device being installed. This allows the same physical interface to adapt to different installation scenarios without requiring complex hardwired connections for each device type
2Adaptability or versatility
If multiple dedicated connection terminals are provided for different field device types, then the adapter can support various installations, but the internal wiring becomes more complex
Solution Approach 1:
Instead of providing separate dedicated terminals for each field device type, the patent uses a universal set of five terminals that can be configured for different purposes. Terminal A can serve as positive pole for power supply or communication depending on the device type. Terminal B can serve as negative pole, communication, or ground. This multi-functional approach reduces the total number of terminals needed while maintaining compatibility with various field device configurations
Solution Approach 2:
The interface is segmented into functional groups that can be independently configured. The terminals are divided into power supply functions (A, B), communication functions (B, C, Da, Db), and ground/reference functions (C, E). This segmentation allows flexible combination of functions across terminals based on the specific field device being connected, reducing the need for dedicated terminals for each function
3Reliability
If the wireless adapter is designed with explosion-proof operation capabilities, then safety in hazardous areas is ensured, but the design and implementation becomes more complex
Solution Approach 1:
The wireless adapter implements explosion-proof operation by dynamically adjusting electrical parameters based on the connected field device. The adapter can limit voltage and current output to safe levels required for hazardous area operation. By changing operational parameters rather than requiring complex structural modifications, the adapter achieves intrinsic safety certification more efficiently
Solution Approach 2:
The wireless adapter incorporates built-in protection mechanisms that automatically ensure safe operation in hazardous areas. The device monitors its own output parameters and automatically limits voltage and current to prevent ignition of explosive atmospheres. This self-regulating capability reduces the need for external protection circuits and simplifies the overall implementation of explosion-proof operation
Data Source
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AI summary
A universal interface for a wireless adapter, which supports a communication protocol used in automation technology, wherein associated with the wireless adapter are a first energy supply unit for energy supply of the wireless adapter and a radio module for communication with a superordinated control unit via a radio network, wherein provided on the interface are at least five connection terminals, which are so embodied that, as a function of a field installation that is to be connected, a portion of the connection terminals is connectable either with different embodiments of field devices or with a servicing device.