01 · CROSS-LINE OPERATION
Cross-line Operation
A streamlined electronic map supports operation across different lines, enabling protection functions to be deployed efficiently while retaining flexible engineering-vehicle operation.
EV-IPS · ENGINEERING VEHICLE INTELLIGENT PROTECTION
Engineering Vehicle Intelligent Protection Solution
Actively Perceive Forward Risks and Close the Warning-to-protection Loop
For urban rail engineering vehicles, industrial locomotives and dedicated lines, fused vision and LiDAR combine with positioning, speed measurement, electronic maps, onboard HMI and vehicle interfaces to provide graded warnings and protection against obstacles, stop signals, work-boundary overruns and overspeed.
PERCEIVELOCATEDECIDEWARNPROTECT
WHY EV-IPS
Upgrade Driver Lookout to Always-on Intelligent Protection
Metro engineering vehicles perform shunting, construction, maintenance and rescue alongside other work. EV-IPS not only detects targets; it combines real-time perception with vehicle position, speed, line limits and work tasks to provide understandable, actionable safety prompts.
Complete DeliveryEV-IPS onboard controller + front/rear sensing modules + HMI terminals + positioning and speed units + RFID and vehicle interfaces; ground communications and ATS / CI access are optional by project
THREE KEY CHARACTERISTICS
Three Characteristics for Multi-line, Multi-environment Operations
For cross-line operation, independent onboard protection and positioning in complex environments, EV-IPS uses configurable engineering options to adapt to different line conditions and operating modes.
02 · AUTONOMOUS OPERATION
Autonomous Operation
Supports operation without ground route-information input, independently recognizes signals ahead and coordinates driving protection; driver operation and intervention remain available when an abnormal condition occurs.
03 · MULTIMODAL POSITIONING
Multimodal Positioning
Fuses RTK, lineside signals, track beacons and driver-forced calibration to support surface, elevated, underground, depot and garage environments, including positioning initialization, in-operation positioning continuity and abnormal-positioning alerts.
FIELD RISKS
Four Frequent Risks Require a Closed-loop Protection Chain
Forward Obstacles
Workers, vehicles, buffer stops, grounding rods, cables and tools may intrude into the vehicle's operating clearance.
Passing a Stop Signal
During cross-line work, restricted visibility or operation without interlocking data, drivers face greater recognition and decision pressure.
Work-boundary Overrun
Possession work requires clear boundaries to prevent vehicles leaving the designated section and affecting other operations.
Overspeed & Braking Risk
Permanent and temporary speed limits, work mode and targets ahead jointly determine safe operating speed.
TWO OVERRUNS · ONE OVERSPEED · ONE PROTECTION
Core Protection against Two Overruns, Overspeed and Obstacles
From risk detection and safe-speed-curve generation to driver warnings and vehicle protection, all four capabilities share the same perception, positioning and computing foundation.
Obstacle Detection & Protection
Recognize track geometry, establish a 3D operating clearance, and fuse vision with point clouds to identify intrusions affecting safety.
Red / Blue Stop-signal Protection
Combine electronic maps, vehicle position and visual signal recognition to create prompts, protection endpoints and speed curves for mainline red and depot blue signals.
Work-zone Protection
The driver sets work-section boundaries on the HMI; the system creates a protected range and prompts or intervenes as the vehicle approaches it.
Graded Overspeed Protection
Permanent, temporary and work speed limits, signal state and obstacle distance combine into warning, service-braking and emergency-braking strategies.
SYSTEM ARCHITECTURE
Five Onboard Layers with Optional Ground and Wayside Integration
Depending on project conditions, the system can use fully onboard active perception or connect to interlocking, wireless communications, RTK or wayside beacons for enhanced route and positioning information.
Front & Rear Sensing Units
Industrial cameras and LiDAR capture images, point clouds and track-environment information ahead.
Positioning & Speed Measurement
Fuse speed sensors, inertial data, RFID and electronic maps to continuously update vehicle position and speed.
Onboard Control Computer
Performs multi-source processing, target recognition, risk assessment, protection-curve calculation and event recording.
HMI Interaction
Displays speed, limits, signals, obstacles, route and system status, with voice prompts and mission configuration.
Vehicle Protection Interface
Outputs alerts and coordinates with service braking, emergency braking or traction inhibit according to project interfaces.
SYSTEM COMPOSITION
Input, Computing, Interaction and Vehicle Protection Form an Onboard Loop
The system selects the appropriate front or rear sensing unit from the active cab and fuses positioning, speed, electronic-map and vehicle-state data for risk calculation.
INPUTFront / Rear Detection Sensors RTK and environmental-feature positioning 4× Speed Sensors Vehicle Status & Electronic Map
Obstacle, signal and environmental-feature perception
Open-air and underground fused positioning
Vehicle speed and direction calculation
Active cab, controller status and line information
Multi-source Fusion · Vehicle Positioning · Target Recognition
Safe-speed Curve · Risk Assessment · Event Recording
OUTPUTFront / Rear HMI Terminals Vehicle Braking & Control Interfaces TCMS Interface
Visual and voice warnings, mission configuration
Vehicle protection coordinated to project conditions
Synchronize system status and required data as needed
Typical system architecture. Equipment quantity, interface scope, installation and coordination strategy depend on vehicle type, line conditions and project safety boundaries.
DUAL OPERATING MODES
One Onboard Foundation, Two System Modes
Choose vehicle-infrastructure coordination or locomotive autonomous perception according to existing line systems, operating mode and retrofit scope.
Vehicle-infrastructure Coordination
Connect to interlocking and route data, using vehicle-ground communications to feed signal, route and operating information into protection decisions.
- Supports hauling and propelling operations
- Red / Blue Stop-signal Protection
- Work-section and overspeed protection
- Obstacle Detection & Protection
Locomotive Autonomous Perception
Independent protection based on onboard perception, electronic maps, positioning and speed measurement without relying on ground interlocking interfaces.
- Suitable for existing engineering-vehicle retrofit
- Signal protection during hauling
- Work-section and overspeed protection
- Continuous active obstacle detection
MULTI-SENSOR PERCEPTION
Identify Targets that Truly Affect Movement within the 3D Clearance
The system recognizes track geometry and maps visual targets and LiDAR points into the vehicle clearance. Only targets relevant to the current route and safety boundary proceed to distance, speed-curve and protection calculations.
- Detect trains, pedestrians, buffer stops, grounding rods, cables and small obstacles
- Cover intrusions from the bottom, sides and top of the clearance
- Adapt to tunnels, surface sections, viaducts, curves, gradients and night operation
PROTECTION LOOP
Four Continuous Decisions from Detection to Protection
Perceive the Operating Environment
Front and rear sensors capture vision and LiDAR data in real time to recognize track, signals and targets ahead.
Fuse Position and Mission
Combine vehicle speed, position, electronic map, work route and boundary settings in the current operating scenario.
Calculate the Safe-speed Curve
Dynamically generate prompt, control and protection curves from target distance, line restrictions and braking parameters.
Warn and Apply Protection
The HMI provides visual and voice prompts; when project-defined conditions are met, corresponding protection is applied through vehicle interfaces.
DRIVER INTERFACE
Show the Driver the Current Risk and Why the System Warns
The HMI displays vehicle speed, current limit, target distance, signal state, obstacle count, route and speed curve, with visual and voice prompts supporting driver judgment.
- Mission Configuration
- Operating route, work zone and temporary speed limit
- Real-time Status
- Speed, position, signals, obstacles and system health
- Protection Prompts
- Visual alerts, voice prompts and braking-status feedback
REFERENCE PERFORMANCE
Typical Detection Capabilities
Train Target Detection
Straight-track conditions
Pedestrian Detection
400×1500 mm, straight-track conditions
Signal Recognition
Red, yellow, green, blue and white aspects
Open-air Positioning Accuracy
Using RTK and related positioning data
Underground Positioning Accuracy
Fusing environmental features and other positioning data
Speed-measurement Error
Documented System Specifications
Detection and positioning depend on target size, line curvature, weather, lighting, positioning conditions, installation and vehicle speed. Final values are subject to project specifications, field tests and acceptance criteria.
ONBOARD EQUIPMENT
Three Core Devices Designed for Onboard Environments
The following are typical documented configurations; interfaces, power and mounting must be adapted to the vehicle.
EV-IPS SENSOR
Onboard Sensing Unit
Uses one LiDAR and two cameras to provide front-end perception data for engineering-vehicle protection.
- Vision + LiDAR fusion
- IP66 rating
- -25°C to +55°C operating temperature
EV-IPS COMPUTER
Onboard Control Computer
An onboard processing platform for multi-source perception, intelligent recognition and protection decisions.
- Multi-Source Sensor Access
- Vehicle-Signal Coordination
- -25°C to +70°C operating temperature
IPS-HMI
Onboard HMI Terminal
An integrated terminal for operating status, protection curves, voice alerts and mission configuration.
- 10.1-inch touchscreen
- 1280×800 resolution
- Matrix keypad + dual speakers
ENGINEERING PRACTICE
From Urban Rail Transit to Industrial Dedicated Lines
The latest case adds Foshan Metro Line 2 testing. Field practice across vehicles, line systems and work environments continually validates installation, perception and operating workflows.
Urban Rail Transit · Line Testing
Foshan Metro Line 2
Line-wide testing of HD-map positioning, overspeed protection and detection of small obstacles, pedestrians, buffer stops, grounding rods, trains and signals.
Urban Rail Transit
Shenzhen Metro Lines 7 / 10
Line tests and engineering validation of intelligent safety protection for mainline and depot engineering vehicles.
Urban Rail Transit · Night Operations
MTR Engineering Vehicle
For manual driving inside work zones, detect trains, pedestrians, grounding rods and red boundary beacons to provide active perception assistance.
Port Dedicated Line
Liuzhou Steel Fangchenggang Private Line
Validate onboard perception in industrial rail shunting and transport environments.
Industrial & Mining Railway
Yimin Coal Mine
Field deployment of forward perception and safety protection for locomotives in a mining environment.
CONFIGURE FOR YOUR VEHICLE AND LINE
Contact a Solution Specialist ↗Configure Protection for the Vehicle, Line and Interfaces
From site survey and vehicle adaptation to line testing and delivery, define perception coverage, system boundaries and acceptance conditions.