Dangerous incidents at train stations, such as passengers falling onto train tracks or violent attacks, occur much more frequently than almost anyone realizes. Therefore, the popularization of platform screen doors that prevent passengers from falling onto the tracks and AI-driven safety solutions that detect abnormal behaviors and send out warnings have been deployed in countless train stations to keep passengers safe.
Platform Screen Doors for Train Stations
As accidents of passengers falling onto the tracks in train and subway stations are very common today, platform screen doors as a barrier between the platform and the track have become a must-have for worldwide operators to prevent passengers from falling onto the tracks or getting too close to the moving train.
In addition to safety, platform screen doors bring several other advantages. As the platform screen doors open and close automatically when trains arrive at and depart stations, they contribute to the efficient and timely operation of trains. In an emergency, platform screen doors serve as a containment measure, segregating passengers in designated safe areas.
With palm-size and compact embedded systems, system integrators can install them easily and control the open and close via serial communication. With the long life cycle of the systems, the effect and the return would surely be cost-effective.
Sensor Integration & Train Control Communication
In controlling the opening and closing of the platform screen doors, the compact embedded systems can facilitate sensor integration to open the doors when the train is in the proper position. The train doors can be triggered by the sensor or the platform camera to screen the QR code on the trains.
The embedded systems also play a crucial role in the emergency stop of the trains. When an operator or passenger on a railway platform presses the button, a signal is sent to the control system of the train to activate the brake to stop the approaching train.
Compact Fanless Embedded System Safeguards the Passengers
With the eBOX626A and its value-added durability, compact size, and over-voltage protection, system integrators can build a safety barrier system powered by it. The platform screen doors can be controlled by serial communication seamlessly. The vibration endurance and wide operating temperature ensure a long life cycle and stable functioning of the system.
The entry-level eBOX626A powered by the onboard quad-core Intel® Celeron® processor J6412 not only lowers the cost but is also easy to deploy. Weighs just 1.2 kg and with a dimension of 200 mm (7.87") (W) x 120 mm (4.72") (D) x 46 mm (1.81") (H), it is flexible to install. Then, with an M.2 Key E slot for WiFi/WiFi 6 connection, it can transmit the status of platform screen doors to the station control room.
Some subway systems have been operating for over a century and the power system might be in a state of disrepair and unstable. To ensure non-stop operation, the eBOX626A features over-voltage protection (OVP) to protect against sudden surges of power and keep the system working properly.
The eBOX626A has been showcasing its durability in all kinds of field sites and applications, making it a trustworthy piece for IoT solutions. Even in the difficult environments of railway stations, the certification of IEC 60068-2-64, the vibration endurance reaches 3Grms STD, which can withstand the vibration caused by trains every day. More than that, the operating temperature range is from -10°C to +60°C, which is feasible for indoor and semi-outdoor train station platforms.
AI-Driven Safety Solutions for Train Stations
In addition to platform screen doors, train stations can level up the overall public safety of passengers with the power of AI computer vision solutions to identify emergencies and notify all responding agencies of discovered emergencies. The AI vision can identify common accidents such as falls and medical emergencies, and then activate warning signals for station agents for fast response.
For the tracks, the AI vision also builds up a virtual electronic fence and detects the intrusion of foreign objects for higher safety standards. Stations being overwhelmed by passengers are also a challenge that is hard to tackle. AI can analyze crowd density and predict potential overcrowding situations on platforms. The data can be used to optimize train schedules and direct passengers to less crowded areas.
Compact Edge AI System Powered by NVIDIA Brings High Performance to the Table
In such scenarios mentioned above, Axiomtek recommends a compact edge AI system, the AIE100-ONX, powered by the NVIDIA® Jetson Orin™ NX, up to 100 TOPS. Equipped with a 15W GbE PoE port, it is suitable for connecting with an IP camera for AI vision use cases in public areas.
Economical access to edge AI solutions
The AIE100-ONX features a super compact design and weighs just one kilogram with sufficient I/O, making it an entry-level but versatile choice for general-purpose use cases. The compact size that fits into a small space enables easy deployment. The AIE100-ONX is powered by the NVIDIA® Jetson Orin™ NX plus an effective passive cooling design to provide stable computing capabilities.
The platform offers two versions for different demands for AI performance to establish the most cost-effective configuration for system integrators and end users. The AIE100-ONX 16GB version offers up to 100 sparse TOPs and 50 dense TOPs; while the 8GB version provides 70 sparse TOPs and 35 dense TOPs.
Durable design for multiple environments
To maximize the versatility and possible use cases, the AIE100-ONX features wide operating temperatures from -25°C to +60°C and provides an optional IP42-rated cover kit to function in semi-outdoor environments. It is a plus while a relatively high percentage of platforms are semi-outdoor.