More Information on Rugged Electronics for Rail & Public Transport
Modern vehicles for public transport for rail or road have many functions directly controlled by computer systems such as the drive and speed control, the control of doors, lighting or heating.
As environments are often harsh and narrow, computers in transportation applications must be robust and compact. They are typically networked by fieldbuses (CAN bus, MVB/WTB, ProfiNet), increasingly also by safe Ethernet variants. For trains compliance with at least parts of the EN 50155 is often mandatory. Buses and coaches require ISO 7637-2 automotive certification.
Onboard devices in transportation support, e.g., satellite positioning, data logging and wireless data communication. They are often capable of retrieving data from vehicle electronics systems and can be integrated with other systems present in the vehicles.
Vehicle gateways are increasingly used to enable a common communication platform. Real-time passenger information (RTPI) based on current vehicle positions, infotainment functionality and automated fare collections (AFC) are provided on board the vehicles.
CCTV solutions enabling live transfer of stills and videos are often installed as part of security solutions for public transport. Such video surveillance systems can be integrated with the panic buttons which public transport drivers often have access to for use in case of emergencies.
IT Infrastructure for Trains and Buses
Computers for communication have mission-critical tasks when they transmit data and voice information between the vehicle, the wayside equipment and control center. They are also used for passenger convenience (infotainment), with up-to-date information loaded to onboard servers and transferred to displays. And they support security (surveillance systems), recording camera data streams to video recorders and transmitting data to the control center. With in-vehicle communication mostly based on standard Ethernet, the outside is connected using different wireless standards (GSM-R/P, GPRS, Edge, UMTS, HDSPA, LTE, WLAN).
Reliable Functional Safety for Vital Train Control
Many applications in railways are safety-critical and demand safety levels from SIL 1 to SIL 3 or SIL 4, often resulting in redundant systems with defined error handling. These include automatic train operation and protection (ATO/ATP), the safe operation of signals and switches and other functions in wayside control and traffic management. MEN railway electronics are in accordance with all national train control systems like the European ERTMS/ETCS, the American PTC system, the Chinese CTCS or the Russian KLUB-U and are deployed in applications like permanent positioning, signaling control, diagnosis, wireless service and several applications for automatic train control and protection.
MEN is certified to IRIS (International Railway Industry Standard).
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Application Examples for Rail & Public Transport
Passenger Information Systems
Modular 19-inch systems like 3U CompactPCI or CompactPCI Serial are ideal for passenger information solutions in transportation applications.
Panel PC Driver Desk HMIs for Trains and Coaches
The driver desk in a train is controlled by EN 50155 compliant standard display computers in combination with a customized panel PC version.
Maintenance of tracks is usually performed by special machines and during nighttime when railway traffic is lower. In this application the online track measurement is done with regular trains, replacing specialized measurement trains.
Based on menRDC, applications like fleet management, energy management and driver assistance systems can be combined on a single general purpose platform, taking care of all kinds of efficiency management functions.
In one application the train exchanges diagnosis data with the depot, gets route information and transmits data from its surveillance systems.
Diagnosis and Maintenance Systems
In one application, a predictive maintenance system is combined with passenger information services like pending seat reservation, current trip information and potential connections.
Passenger Information and Security Services
PIS and entertainment solutions give passengers orientation regarding stops, schedules and routes, hints for changing trains, short-term changes of the route or delays.
Permanent Train Positioning
Exact positioning of the train down to the track offers crucial advantages regarding track utilization, waiting times and power consumption.
Advanced Train Management System
ATMS is designed to support the objectives of the Australian Rail Track Corporation, improving rail network capacity, operational flexibility, train service availability, transit times, rail safety and system reliability.
Vital Train and Wayside Control
ATO (Automatic Train Operation) and ATP (Automatic Train Protection) minimize accidents caused by human error, increase the train frequency on the tracks, or avoid overspeed and overrunning red signals.
Passenger Information and Server Systems for Buses
Rugged embedded box PCs are the ideal solution to build server, storage and PIS systems for public and private buses. They can be used to control any kind of passenger information system, for example infotainment streaming, entertainment, next stop signs, audio systems or ticketing machines.