RFID Transceiver Communication for Metal-Heavy Moving Machines
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Solution Overview
Problem
Existing wireless communication systems, such as those based on the IEEE-802.11 standard, are costly and inefficient for industrial applications, particularly in safety-critical environments where high energy consumption and interference from metallic objects are concerns, and they lack adequate availability and interference security.
Innovation Solution
A communication system utilizing RFID transponders and reading devices for bidirectional signal transmission, with standardized components allowing for cost-effective implementation, using safe transmission protocols and vehicle-specific identifiers to ensure reliable communication in industrial environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless LAN is used for bidirectional communication, then communication availability is improved, but energy consumption increases
Solution Approach 1:
The patent changes the fundamental communication parameter from wireless LAN to RFID technology, operating at different frequency ranges (LF 125kHz, HF 13.56MHz, UHF 433MHz) to achieve lower energy consumption while maintaining communication reliability for industrial applications
2Reliability
If transmission power is increased to compensate for metallic interference, then communication reliability is improved, but operating duration decreases
Solution Approach 1:
The patent selects specific RFID frequency parameters (LF 125kHz, HF 13.56MHz, UHF 433MHz) that are less susceptible to metallic interference, allowing reliable communication at lower transmission power levels and thus extending operating duration with limited energy storage
3Ease of manufacture
If standardized RFID components are used, then manufacturing cost is reduced, but communication precision may be compromised
Solution Approach 1:
The patent employs standardized RFID components across multiple frequency ranges (LF, HF, UHF) that can be universally deployed in industrial environments, achieving cost-effective implementation while maintaining sufficient communication precision for safety-related applications through protocol-level error correction
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
The system provides a cost-effective, reliable, and energy-efficient means of bidirectional communication in industrial settings, enhancing safety and reducing interference, while enabling precise control commands and object identification for driverless vehicles.
Implementation Method 1
Each transmission device (3) comprises an RFID transponder (7) that is configured to transmit the signals as transponder signals
Data Source
AI summary
The invention relates to a communication system (1) having at least one first and one second transceiver (18, 38) for the wireless bidirectional transmission of signals between the transceivers (18, 38), wherein each transceiver (18, 38) has a transmission device (3) and a reception device (5). It is proposed that each transmission device (3) comprises an RFID transponder (18) that is configured to transmit the signals as transponder signals and that each reception device (5) comprises an RFID reading device (9) that is configured for receiving transmitted transponder signals. The invention further relates to a machine arrangement having at least one moving machine element and having such a communication system (1), wherein the second transceiver (38) is arranged at the moving machine element.