Managed Remote Access, Centralized Communication and Data Management - Secure and Efficient for Bus and Train Fleets

Modern public transport vehicles contain numerous digital systems - ticketing, infotainment, diagnostics, cameras, sensors and more. Managing all of these across a fleet is a real challenge.

Our platform provides a unified, secure and flexible solution for managing communication, remote access, data processing and device management.

Key benefits

• For bus operators - rapid deployment and full compatibility with vehicle constraints and E-certifications make this platform ideal for city and regional bus networks
• For rail fleets - high reliability and compliance with rail standards make it perfect for safety-critical operations
• Operational efficiency - a single device consolidates connectivity, access control, monitoring, and data management
• Lower costs, higher security - local data processing reduces cellular data usage while maintaining security
• Data sovereignty - full control over where and how data is stored or processed, no forced reliance on third-party clouds

What you can achieve

• Secure communication through VLANs, firewalls, and authenticated access
• Device management with centralized subsystem control and remote health monitoring
• Data collection & processing, aggregating onboard data locally or via cloud
• Deployment flexibility, supporting cloud, on-premise, or edge operation

How it works

1. Digital systems are connected via a managed network with VLAN segmentation
2. Edge data processing minimizes uploads and latency
3. Secure remote access provides central control and complete logging
4. Modular expansion supports AI, custom software, and fleet analytics

Case study: ABB, Adelaide, Australia

ABB required continuous monitoring of traction converters in trains with strict access control, while managing mobile network challenges including high latency, intermittent connectivity, and the complexities of managing remote devices across a multi-vendor vehicle environment.

Parametric delivered the RAR4000 Mobile Edge Computer with robust hardware security, redundant mobile connectivity, and certified remote access software - “Your Infrastructure. Your Rules.”

Benefits achieved: security through integrated firewall and VLAN separation, efficiency via real-time data and remote diagnostics, traceability through central audit logs, and reliability via redundant communication channels.

System architecture

• Edge-based processing - process and analyze data directly inside the vehicle for real-time decision-making without relying on network uptime
• Cloud integration - securely transmit selected data for analytics, maintenance planning, and dashboarding
• On-premise compatibility - for operators with strict IT policies, the entire platform can run without cloud access, ensuring full data sovereignty

Components - modular, scalable, field-proven

• Base configuration - LTE/5G modem support, WiFi & GPS, VLAN-enabled Ethernet switch, firewalling, and update management
• Remote access module - role-based access control, audit logging, and real-time monitoring, fully centralized and certified
• Data aggregation module - timestamped collection of logs and sensor data with secure upload and external system integration
• Edge intelligence module - run AI models or your own software on the device using a container sandbox and integrated Neural Processing Unit (NPU)

Over 5,000 units have been deployed across Europe and Australia in buses, trams, and trains since 2014.