NFC Field Device Access for Automatic Program Launch and Login
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Solution Overview
Problem
The operation of field devices in process automation technology is cumbersome, requiring operators to manually search for and initiate operating programs, establish connections, and perform multiple authorization steps, especially when dealing with diverse devices from different manufacturers.
Innovation Solution
The method employs an NFC/RFID transponder with an operating unit that reads stored data to automatically trigger the operating program, establish wireless connections, and generate new login data, eliminating the need for manual program selection and authorization steps by using NFC/RFID technology for seamless communication and authorization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation procedures are used for field devices, then operators can access and control devices, but the operation process becomes cumbersome and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-storing operating program identifiers and connection parameters in the NFC/RFID transponder of the field device. When a service technician brings an operating unit close to the field device, the system automatically retrieves and executes the appropriate operating program without requiring manual selection or connection establishment steps. This pre-prepared data structure enables instant program initiation and automatic connection setup.
Solution Approach 2:
The patent extracts the essential operating information (program identifiers, connection parameters, authorization data) from the complex operating system and concentrates it in a simple NFC/RFID transponder. This extracted data subset can be quickly read and processed, eliminating the need to navigate through multiple menus and connection settings in the full operating system.
2Reliability
If multiple authorization steps are required for field device access, then security is maintained, but the operation process becomes more complex
Solution Approach 1:
The patent merges multiple authorization verification steps into a single NFC/RFID authentication event. The transponder contains pre-configured authorization data that is automatically verified when read by the operating unit, combining what would otherwise be separate login, password verification, and permission checking steps into one seamless authentication process.
Solution Approach 2:
The field device's NFC/RFID transponder performs self-service authentication by automatically providing verified authorization data to the operating unit. The system self-validates the service technician's access rights without requiring manual intervention from security administrators or complex multi-step authorization protocols.
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 approach simplifies the operation of field devices by automating the initiation of the operating program and connection establishment, reducing the complexity of handling multiple devices and ensuring secure, authorized access without additional authorization steps, especially in potentially explosive areas.
Implementation Method 1
the field device has an NFC/RFID transponder, wherein an operating unit comprises an operating system which has an executable operating program, wherein the operating unit has an NFC/RFID reading unit
Data Source
Figure 1
AI summary
The invention relates to a method for operating a field device used in process automation technology, wherein the field device has an NFC/RFID transponder, wherein an operating unit comprises an operating system which has an executable operating programme, in particular application software, wherein the operating unit has an NFC/RFID reader. The method is characterised in that the NFC/RFID transponder comprises a memory which has data which, when read out using the NFC/RFID reader, triggers the calling up of the operating programme in the operating unit.