Radio Module for Field Devices Bi-Directional Automation
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Solution Overview
Problem
Existing radio networks for field devices in automation technology are complex and expensive to develop, and they only allow one-way data transmission from sensors to superordinated units, preventing configuration or parameterization of field devices.
Innovation Solution
A radio module that connects to field devices via a field device interface, incorporating a microcontroller for function control, a radio unit for data communication, and an energy supply unit, enabling bi-directional data transmission and energy supply, which can be easily integrated with conventional field devices to support radio network usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional field devices are used in radio networks, then data transmission is possible, but two-way communication (configuration and parametering) is not enabled
Solution Approach 1:
The patent combines the radio unit, microcontroller, and energy supply unit into a single integrated radio module that interfaces with the field device. This merging of multiple functional components into one module enables two-way communication while managing device complexity through unified design.
Solution Approach 2:
The radio module serves multiple functions: it enables bidirectional data transmission (measured values from field device and configuration data to field device), provides energy supply, and interfaces with conventional field devices. This multi-functionality resolves the communication limitation while maintaining practical complexity.
2Adaptability or versatility
If field devices are equipped with radio modules for two-way communication, then configuration and parametering become possible, but development complexity and cost increase
Solution Approach 1:
The system is segmented into a radio module and the conventional field device. The radio module handles all radio communication and configuration functions, while the field device maintains its original simple structure. This segmentation allows conventional field devices to gain configurability without requiring complete redesign, reducing development costs.
Solution Approach 2:
The radio module acts as an intermediary between the superordinate unit and the conventional field device. It handles the complex radio communication and configuration protocols, allowing the field device to remain simple while still achieving full configurability through the mediating radio module.
3Adaptability or versatility
If energy supply is provided via the radio module, then field devices can be installed at any location, but energy consumption must be minimized
Solution Approach 1:
The microcontroller and radio unit operate in periodic cycles with sleep and active phases. During sleep phases, energy consumption is minimized; during active phases, data transmission and reception occur. This periodic operation enables wireless installation flexibility while controlling overall energy consumption of the battery-powered system.
Data Source
AI summary
A radio module RM for field devices of automation technology is connectable with a field device, e.g. F1, via a field device interface. The radio module RM includes a microcontroller μC for function control, a radio unit RF for data communication with a superordinated unit, and an energy supply unit ESU. With the help of the radio module RM, conventional field devices can be adapted simply to become radio-capable field devices, in order that they can then also be used in radio networks.