Railway AI-enabled video analytics

Issue 7 2022 Surveillance

Built on the latest industrial version of Nvidia's Jetson AGX Xavier module, the AVA-RAGX provides a compact, rugged AI-enabled solution for both onboard and wayside railway applications that delivers reliability and performance in harsh operating environments. The AVA-RAGX is a new addition to ADLINK’s railway AI-enabled video analytics (AVA) platform portfolio, the AVA-RAGX offers rail solution providers a high level of flexibility to select the configuration best suited to their application.

AI is accelerating the digital transformation of the railway industry to improve operational efficiency, deliver smarter and safer customer services, and create new business opportunities. The AVA-RAGX platform is ideal for real-time video and graphics analysis applications – vital in today's increasingly complex railway operations.

With an 8-core Nvidia Carmel CPU and a 512-core Nvidia Volta GPU, the platform exemplifies Adlink’s expertise in developing next-generation railway systems. Combining AI, machine learning, edge computing and IoT technologies, and certified to EN 50155 specifications, the AVA-RAGX is a rugged, fanless and compact platform designed for flexible deployment in harsh operating environments.

With its compact 288 x 190 x 78 mm dimensions, the AVA-RAGX specifically targets space-restricted environments, making it ideal for edge-type railway applications with small solution enclosures. It provides a full complement of I/O ports, including four M12 gigabit ports and wireless connectivity (5G/LTE and Wi-Fi), as well as four digital inputs and four outputs (24-110 V DC with 1,5 kV isolation).

When integrated with an advanced camera system, radar, lidar, GNSSC and AI software stack, the AVA-RAGX system can provide precise information about the train's surroundings and exact position. A challenge particular to the rail industry is the long braking distance of trains. The AVA-RAGX can be used as the heart of a hazard detection system to detect emerging hazards far ahead to increase warning time when connected to appropriate sensors, improving operational efficiency and safety and helping to prevent accidents, especially when trains run at night or in adverse weather conditions that reduce visibility.

When installed on an inspection train, a trackside equipment fault detection system processes images captured from wayside equipment such as the pantograph and track in real time. Driven by Nvidia's GPU accelerated computing, the system can effectively identify potential equipment faults at a train speed of up to 120 km/h.

Incorporating AI-at-the-edge into onboard legacy IP camera networks enhances passenger travel conditions. The AVA-RAGX can perform checking for unattended luggage, seat occupancy and passenger counting. When deployed in train stations, the AVA-RAGX can analyse the real-time video stream received from station platforms to detect suspicious or aggressive human behaviours and crowd movement.


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