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    Product Description

    High-speed train testing can require normal onboard safety functions to be temporarily disabled or bypassed to validate vehicle behavior beyond normal operating conditions. In these situations, the test train needs an independent protection layer capable of reacting autonomously if the predefined safety envelope is exceeded.

    Developed and deployed in collaboration with SNCF Connect, ESVE continuously compares train speed with its position on the track and automatically commands emergency braking when predefined limits are exceeded. Built on the proven U-TEST® real-time platform, it combines deterministic processing, railway-grade hardware, onboard diagnostics and data recording in a compact embedded system designed for demanding railway test environments.

    Key Benefits

    • Provides an independent safety barrier when onboard train protections are unavailable during testing

    • Protects personnel, rolling stock and infrastructure through autonomous overspeed protection

    • Applies position-dependent speed limits throughout the test route

    • Long-term maintainability

    • Provides onboard diagnostics and event recordings for post-test analysis

    • Adaptable to future safety monitoring applications

    Application Areas

    Features & Additional Information

    • Adds an independent safety layer during high-speed rail testing
    • Automatically triggers emergency braking when overspeed conditions occur
    • Continuously monitors train speed and location during testing
    • Applies predefined position-dependent speed limits independently from the train systems under test
    • Operates autonomously from the train functions being validated
    • Designed specifically for high-speed train validation programs

    • Powered by U-TEST real-time Platform
    • Supports deterministic processing for safety-critical applications
    • Integrates with onboard railway systems and sensors
    • Processes operational data in real time
    • Enables future adaptation to customer-specific applications

    • Ethernet connectivity for remote access and communications
    • Supports communication with sensors and actuators
    • USB connectivity
    • ATESS train system communications support
    • Optional Wi-Fi communications
    • Optional GPRS/UMTS/LTE connectivity
    • Optional RS232, RS422, and RS485 communication interfaces

    • Integrated self-test capabilities
    • Embedded maintenance software
    • Data recording for operational analysis and troubleshooting
    • Railway-specific I/O interfaces
    • Supports maintenance and investigation activities following test runs

    • Precise localization through GPS/GNSS technology
    • Optional inertial measurement unit (IMU)
    • Optional temperature and humidity monitoring
    • Supports analog and discrete inputs
    • Dry-contact outputs for system integration
    • Scalable configuration depending on program requirements

    • Modernized architecture to address component obsolescence
    • Optional cybersecurity features available
    • Designed for long-term deployment and support
    • Provides a reusable hardware architecture
    Technical Specifications
    Primary Function

    Embedded Overspeed Protection

    Application

    High-Speed Rail Testing

    Processing Platform

    U-TEST® Real-Time Engine

    Positioning

    GPS / Optional Multi-Constellation GNSS

    Communications

    Ethernet, USB, ATESS

    Optional Communications Wi-Fi, GPRS, UMTS, LTE
    Serial Interfaces RS232, RS422, RS485
    Inputs Analog & Discrete Inputs
    Outputs Dry Contact Outputs
    Data Functions Monitoring, Self-Test & Data Recording
    Cybersecurity Optional
    IMU Optional
    Operating Temperature -25°C to +70°C
    Humidity 0-90%
    Maximum Altitude 1,400 m
    Supply Voltage 24 VDC to 138 VDC
    Power Consumption  30 W

    Contact us

    Secure high-speed rail testing when normal onboard protection functions cannot be relied upon. ESVE provides an independent, autonomous safety barrier combining position-based overspeed monitoring and automatic emergency braking to protect personnel, rolling stock and infrastructure.