Moxa designed its onboard computers specifically to transmit video streams and data from the NVRs to the OCC via wireless networks for real-time monitoring. Our NVR computers enable uninterrupted concurrent video recording from multiple streams. As installation space in the driver cab is very limited, our fanless, compact panel computers can serve as a common display for both PIS and CCTV. Moxa’s Multi-WWAN computers support both cellular and Wi-Fi connection options for streaming live CCTV data to the control center. All Moxa onboard computers are fully compliant with the EN 50155 anti-shock and anti-vibration criteria to ensure reliable operation when the train is on the move.

As trains become more complex, the number of onboard systems and devices, such as CCTV, PIS, and other passenger-oriented systems, increases. Efficient operation requires integrating all these intelligent onboard devices onto a single Ethernet network. CCTV systems, specifically, process several high-definition video streams and connect to multiple bandwidth-intensive end devices, such as NVRs and wireless access points. This requires a robust network backbone that supports high data transfer rates. In addition, the demand for PoE capability to supply onboard devices like IP cameras is surging. Moxa’s lineup of wired and wireless networking solutions for high-speed onboard and train-to-ground communications is designed to meet these growing trends.

While every onboard subsystem performs its own set of tasks, it needs to be interconnected with other systems through the backbone network. A reliable Ethernet Train Backbone (ETB) network, which connects the Ethernet Consist Networks (ECN), is critical for integrating onboard systems. Usually, the onboard CCTV system is built on the ECN so that live video can be streamed to the driver cab and recorded via the IP network. This data then transfers to the remote OCC via a Wi-Fi or cellular connection. Moxa provides a complete line of onboard switches perfect for creating a reliable, intelligent Ethernet train network.

Moxa’s onboard switch solutions simplify network design, installation, and maintenance. Mid-journey, train consists are frequently reconfigured. In a standard redundancy design, the ring coupling has to be reconfigured every time a new consist is coupled to the train. Moxa’s Dynamic Ring Coupling™ (DRC) technology enables inter-consist Ethernet redundancy without disrupting intra-consist networks during reorientation. As a result, all the Ethernet-based services, such as CCTV, Wi-Fi access, and PIS, continue to operate seamlessly even when coupling switches are rearranged mid-journey. For retrofitted trains, Moxa’s Auto Carriage Connection (ACC) technology creates wireless inter-car links and reduces cabling and wiring complexity on the train. Furthermore, Moxa’s switches support Auto Configuration, which configures IP settings for all network devices automatically, saving significant effort, especially for mass device deployments.

Cellular and Wi-Fi networks are becoming the preferred train-to-ground (T2G) communication method. Rail operators may consider adopting LTE and Wi-Fi hybrid solutions for handling T2G communication in different scenarios. When on the move, the train uses cellular connections for seamlessly switching between regional carrier services to ensure uninterrupted video streams. When the train enters the station or returns to the depot, it offloads all recorded data over Wi-Fi, saving on carrier service charges. Moxa provides Wi-Fi and cellular options to cover all scenarios.