--- title: "WIZnet Success Stories: Railway Sensing Data Communication System Powered by W55RP20" url: "https://maker.wiznet.io/Alan/resellers/wiznet-success-stories-railway-sensing-data-communication-system-powered-by-w55rp20/" markdown_url: "https://maker.wiznet.io/Alan/resellers/wiznet-success-stories-railway-sensing-data-communication-system-powered-by-w55rp20/md" type: "VAR: Value-Added Reseller Products" author: "Stransport" author_url: "https://www.stransport.co.kr/board/view.do?iboardmanagerseq=7" editor: "WIZnet" editor_url: "https://maker.wiznet.io/" original_author: "Stransport" original_url: "https://www.stransport.co.kr/board/view.do?iboardmanagerseq=7" published: "2026-04-12" language: "en" likes: 0 views: 608 comments: 0 source: "WIZnet Makers (https://maker.wiznet.io/)" --- # WIZnet Success Stories: Railway Sensing Data Communication System Powered by W55RP20 > Railway Sensing Data Communication System Powered by W55RP20 Original author: Stransport (source: https://www.stransport.co.kr/board/view.do?iboardmanagerseq=7) ## Article ## Overview ![](https://maker.wiznet.io/upload/ckeditor5/425642189%5F1776033504%2Epng) S-Transport is a company specializing in railway and transportation infrastructure, with capabilities in signaling, communications, and system integration. In this project, the company adopted **WIZnet’s W55RP20** for an onboard railway sensing data communication system, enabling sensor data collected inside a train to be reliably connected to Ethernet and transmitted to the Cloud. The core of this system is the implementation of a **Serial-to-Ethernet function**. Sensor values are received through a single Serial interface, then converted and monitored continuously over Ethernet. A key feature of the product is its **dual Ethernet port design**, while only **one Serial channel** is used for sensor data input. Installed inside the train, the system collects sensing data whenever the train passes a station and sends that data to the Cloud through Ethernet. --- ## Background ![](https://maker.wiznet.io/upload/ckeditor5/425642189%5F1776033563%2Epng) In railway environments, sensing data generated inside train cars is critical for operational safety, condition monitoring, and maintenance efficiency. However, many field devices still rely on Serial-based interfaces, which makes it difficult to directly connect collected data to external networks or Cloud platforms. This creates several technical requirements: - Reliable acquisition of Serial-based sensing data - Stable wired communication inside railway vehicles - Continuous real-time or near real-time monitoring - Event-based data transmission when passing stations - Easy integration with upper-level servers or Cloud systems To address these needs, S-Transport designed a system that could reliably bridge Serial sensor data to Ethernet, with **WIZnet’s W55RP20** at the center of the solution. --- ## Solution ![](https://maker.wiznet.io/upload/ckeditor5/425642189%5F1776033517%2Epng) In this system, the **W55RP20** was used to implement the core **Serial-to-Ethernet communication function**. The W55RP20 integrates **WIZnet’s W5500 Ethernet controller** and the **RP2040 MCU** into a single SiP, making it well suited for compact and efficient embedded Ethernet applications. For this project: - **One Serial interface** is used to receive sensing data - The received data is converted and delivered through **Ethernet** - The product architecture features **two Ethernet ports** - The system allows sensed data to be monitored continuously and transmitted to the **Cloud** This approach makes it possible to extend legacy Serial-based sensing systems into modern network-based infrastructures without redesigning the sensing side itself. --- ## System Architecture The system can be understood as follows: ### 1. Sensor Interface Sensors installed inside the train generate various operational and environmental values. ### 2. Serial Input These sensing values are collected through a single Serial interface. ### 3. W55RP20-based Communication Module The W55RP20 receives the Serial data and converts it into Ethernet data for network transmission. ### 4. Dual Ethernet Connectivity A distinctive feature of the applied product is its **two Ethernet ports**, allowing flexible integration with onboard network structures and upper-level communication systems. ### 5. Cloud Transmission Whenever the train passes a station, the sensed data is collected and transmitted through Ethernet to the Cloud, where it can be monitored and managed continuously. --- ## Key Technologies ### W55RP20 The W55RP20 combines Ethernet connectivity and MCU functionality in a single chip package, helping simplify embedded system design. It is an effective solution for applications requiring stable Ethernet communication in constrained environments. ### Serial-to-Ethernet Many railway subsystems still output data through Serial communication. By using the W55RP20, these existing Serial signals can be converted into Ethernet data and integrated into modern network-based systems. ### Cloud Connectivity Once sensing data is available over Ethernet, it becomes much easier to forward it to Cloud platforms for centralized monitoring, storage, and further analysis. --- ## Benefits This W55RP20-based system provides several advantages: - **Legacy sensor integration** Existing Serial-based sensing devices can be connected to Ethernet without major redesign. - **Reliable wired communication** Ethernet provides stable and predictable communication, which is especially important in railway environments. - **Continuous visibility of sensing data** Sensor values can be monitored continuously over the network. - **Easy Cloud integration** Data collected when the train passes stations can be transmitted to Cloud systems for centralized management and analytics. - **Simplified embedded design** By integrating Ethernet and MCU functionality, the W55RP20 helps reduce system complexity. --- ## Conclusion This project by S-Transport is a strong example of how Serial-based sensing data inside railway vehicles can be extended into Ethernet and Cloud-connected systems. In many railway applications, sensors and field devices still use Serial communication, but operational efficiency and data utilization increasingly require network-based access. By adopting **WIZnet’s W55RP20**, S-Transport successfully implemented a practical **Serial-to-Ethernet solution** that enables reliable onboard data collection, continuous Ethernet monitoring, and Cloud transmission. In particular, the combination of **a single Serial input and dual Ethernet ports** makes this system a highly practical choice for railway sensing data applications. --- Source: https://maker.wiznet.io/Alan/resellers/wiznet-success-stories-railway-sensing-data-communication-system-powered-by-w55rp20/