Avionics I/O Device Ethernet Frame Management
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Solution Overview
Problem
Conventional control devices in the avionics field require extensive and costly reliability tests due to their integrated inputs/outputs, which are inflexible and need requalification upon upgrades, leading to increased financial and temporal burdens.
Innovation Solution
An input/output device that transfers data over Ethernet using UDP/IP protocol, allowing connection to multiple data processing devices and enabling easy addition or removal of inputs/outputs, reducing the need for requalification and simplifying certification by managing data transmission over a single Ethernet connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If inputs/outputs are integrated in the control device, then the control device can process data from various equipment, but the number of inputs/outputs cannot be easily changed and requalification is required upon upgrades
Solution Approach 1:
The patent separates the input/output functions from the control device by introducing a dedicated I/O device that communicates with the control device via Ethernet connection. This segmentation allows the control device to maintain its certification while the I/O device can be independently modified, added, or removed without requiring requalification of the control device.
Solution Approach 2:
The patent introduces an Ethernet communication interface as an intermediary between the control device and various input/output devices. This intermediary layer enables flexible connection to multiple data processing or acquisition devices while maintaining stable, certified communication protocols, thus allowing adaptability without compromising reliability.
2Adaptability or versatility
If multiple input/output devices are connected to the control device, then more data processing capability is available, but more connections and management complexity are required
Solution Approach 1:
The patent merges multiple input/output devices into a unified Ethernet-based communication system. Instead of requiring separate connections for each I/O device, multiple devices can be connected through the Ethernet network, allowing the control device to access multiple data processing or acquisition devices through a standardized interface, thus reducing connection management complexity.
Solution Approach 2:
The patent implements a universal Ethernet communication interface that can connect to various types of data processing or acquisition devices. This universal interface allows the control device to communicate with different I/O devices using the same protocol and connection method, simplifying management while maintaining high data processing capability.
Data Source
AI summary
The invention relates to a input/output device transferring and/or receiving data to and/or from a control device, wherein the input/output device transfers the data to the control device over a physical connection of the Ethernet type according to a UDP/IP protocol, the input/output device being connected to a plurality of data processing or acquisition devices by means of at least one connection different from the Ethernet physical connection and in that the input/output device includes means for connecting at least one other input/output device to the Ethernet connection and for managing the transmission over the Ethernet connection of the data transmitted by the input/output devices to the control device.