Two-Wire Field Signal Processing for Multi-Source Measurement Output
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Solution Overview
Problem
Existing field devices are limited in their ability to process data or measured values from different signal generators, restricting their versatility and application scope.
Innovation Solution
A field device with multiple calculation methods stored, allowing it to generate output signals based on input signals from integrated sensors and external signal generators, connected via a two-wire system and additional interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a field device uses a two-wire supply interface for power and signal transmission, then installation complexity and wiring requirements are reduced, but the device's ability to process data from multiple signal generators is limited
Solution Approach 1:
The field device is designed with multi-functionality by storing multiple calculation methods for different signal generator types within a single device. The functional unit can selectively execute different calculation methods based on the connected signal generator type, enabling the device to process data from various sources (integrated sensor, additional interface, or both) without requiring multiple specialized devices or complex wiring configurations.
2Adaptability or versatility
If the field device stores multiple calculation methods for different signal generators, then versatility and application scope are enhanced, but device complexity increases
Solution Approach 1:
The field device implements dynamics by making the calculation method selection adaptive and flexible. The functional unit dynamically chooses which calculation method to execute based on the type of signal generator connected and the available input signals. This dynamic adaptation allows the device to handle diverse applications without requiring hard-coded configurations or manual programming, thereby managing complexity while maintaining versatility.
Data Source
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AI summary
The invention relates to a field device (1) with a two-wire supply interface (3) suitable for receiving energy via a two-wire system and for transmitting signals via the two-wire system, with an integrated sensor (6), with at least one additional interface (5) suitable for receiving signals, and with a functional unit (4) or functional group for data and/or signal processing, which is coupled to the two-wire supply interface (3), the additional interface (5) and the integrated sensor (6).According to the invention, the functional unit (4) or functional group is configured to perform the following steps: receiving at least one first input signal from the integrated sensor (6), receiving at least one second input signal from the auxiliary interface (5), generating an output signal based on the at least one first input signal and the at least one second input signal, and initiating transmission of the output signal via the two-wire system using the two-wire supply interface (3). According to a further aspect of the invention, a measuring arrangement is proposed comprising a field device (1) of the type described above and a signal generator, wherein the field device (1) is connected to the signal generator via the auxiliary interface (5). A method for providing an output signal is also proposed.