Protocol Conversion Apparatus for Wireless Field Device Integration
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Solution Overview
Problem
Process control systems face challenges in integrating wireless field devices with different communication protocols, requiring separate configuration tools and protocols, which can be costly and require users to learn new protocols, leading to increased complexity and costs.
Innovation Solution
An apparatus and method that convert information between different field device protocols, such as HART and wireless protocols, using mapping information and device descriptors, allowing a single configuration tool to manage devices with different protocols, eliminating the need for multiple tools and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple configuration tools are used for different field device protocols, then each protocol can be managed with dedicated tools, but the system complexity and costs increase
Solution Approach 1:
The patent implements a universal configuration tool that can manage multiple field device protocols (HART, wireless, and others) through a single interface. The system uses protocol conversion functionality to translate between different protocols, allowing one configuration tool to perform the functions previously requiring multiple specialized tools, thereby reducing system complexity while maintaining protocol-specific compatibility
Solution Approach 2:
The patent introduces a protocol conversion layer that acts as an intermediary between the configuration tool and field devices using different protocols. This mediator translates configuration commands and device responses between protocols, enabling a single configuration tool to communicate with diverse field devices without requiring users to learn multiple protocol-specific tools
2Reliability
If multiple configuration tools are used for different field device protocols, then each protocol can be managed with dedicated tools, but training costs and user learning time increase
Solution Approach 1:
The configuration tool provides a unified interface for managing multiple field device protocols, eliminating the need for users to learn and switch between multiple protocol-specific tools. The single tool handles HART, wireless, and other protocols through automatic protocol detection and conversion, significantly reducing training requirements and improving ease of operation
3Ease of operation
If protocol conversion is implemented, then a single configuration tool can manage multiple protocols, but conversion accuracy and data integrity may be compromised
Solution Approach 1:
The protocol conversion layer acts as an intelligent intermediary that maintains data integrity during protocol translation. It uses detailed protocol mapping information and device descriptors to ensure accurate conversion of configuration commands and device responses, preserving measurement precision and data accuracy while enabling tool consolidation
Solution Approach 2:
The system performs preliminary protocol analysis and mapping before actual conversion, using pre-defined protocol relationships and device descriptors to ensure accurate translation. This preliminary preparation ensures that data integrity is maintained during conversion by establishing correct mapping relationships in advance
Data Source
AI summary
An apparatus is provided for facilitating communication between, for example, a configuration tool in a process control system and a wireless field device (such as a wireless sensor or actuator). The configuration tool and the wireless field device use different protocols, and the apparatus converts between the different protocols. The protocol used by the configuration tool could include HART. From the perspective of the wireless field device, the apparatus could appear to support the application protocol of the wireless field device. From the perspective of the configuration tool, the apparatus could simulate a HART multiplexer. This may allow a user to use the configuration tool to configure, commission, and monitor the wireless field device, even when the user does not know or understand the protocol used by the wireless field device.