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Overall capability
Enforcement of vehicle speed and movement authority limits with SIL-rated automatic train protection.
Brake enforcement is a capability of EN4CER solutions that ensures a rail vehicle does not exceed the permitted speed or limit of authority, as authorised by a control system.
The EN4CER series is a suite of flexible onboard solutions for automatic train protection, vision and perception, and Advanced Driver Advisory functionality. The system has three levels of deployment, each with a common baseline architecture. EN4CER systems are configured to meet specific functional requirements that can provide train drivers with greater awareness and efficient rail operations.
| Configuration | EN4CER-100 | EN4CER-200 | EN4CER-300 |
|---|---|---|---|
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Summary
Overall capability
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Enforces Movement Authority Limits with ATP functionality | Provides a forward-facing camera system using Horus AI for detecting track hazards and objects | Provides ATP, ADAS, and Horus AI hazard and signal aspect detection for onboard smart train operations |
| Rail vehicle | Locomotives | Locomotives | Locomotives |
| Hardware |
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| Installation | All EN4CER deployments are fully integrated with locomotive system | ||
| Functionality | Communications-based movement authorities Automatic Train Protection via Braking Interface Audible alarms and visual warnings for operational events | Communications-based movement authorities Real-time hazard detection Audible alarms and visual warnings for operational events | Communications-based movement authorities Real-time hazard detection Audible alarms and visual warnings for operational events Automatic Train Protection via Braking Interface Coloured light signalling interface |
When Horus is integrated with an EN4CER system, emergency braking can be automatically engaged (depending on network rules) via an independent SIL4-rated safety computer to create an Automatic Train Protection (ATP) system. Each ATP application does need to undergo functional safety assessment per train type, network and operation. 4AI Systems can provide this capability and has already participated in a functional safety assessment in a client environment. This established and independently verified process enables faster deployment in other environments.
Independent of infrastructure: No requirement for trackside equipment e.g. balises.
Provision of audible & visual alarms: Notify drivers of an impending overspeed occurrence or approaching limit of authority.
Provision of wholly-onboard ATP: Brake activation if drivers fail to respond to warnings and alarms.
Speed enforcement: Against the allowable track speed, including speed restrictions through turnouts.
Management of communications-based movement authorities: For single and multi-track lines.
Designed for safety certification: EN4CER is designed to IEC 61508 for safety integrity certification on a case-by-case basis according to the functional requirements of a given application.