Signal repetition
Visual and acoustic indications of track signals, repeated in the driver’s cab.
← All services
AT Solutions
Automatic train protection and control. AT Solutions
Medha designs and builds the hardware and software for automatic train protection. Its ASFA Digital system reads driving information from track beacons, repeats signal aspects in the cab, supervises speed and applies the emergency brake automatically if limits are exceeded. It runs on a wide range of RENFE vehicles in Spain and is certified to SIL-4. Medha also offers system integration for other railway applications.
Speed supervision
Continuous speed monitoring from track beacons, with automatic emergency braking.
Driver monitoring
Supervises how the driver responds to signals.
Train integration
Interfaces with brakes, battery, legal recorders, ERTMS/LZB and frequency sensing.
Event logging
Detailed signal and event logs for analysis software.
Configurable
Parameters can be set to match each operator’s rules.
Medha safety & signalling
- Automatic Train Protection (ASFA Digital)
- Train Collision Avoidance System
- Communication Based Train Control
- Single, multi-section and block-proving axle counters
- SIL-4, CENELEC EN 50126 / 50128 / 50129