Product--Traffic control technology

导航

Perception-Based Train-to-Train Autonomous Control System (PB-TACS)

Background

Amidst the rapid development of urban rail transit, traditional train control systems face challenges such as complex system architecture, numerous ground-based equipment, lengthy installation and commissioning periods, limited transport efficiency, and high construction and maintenance costs. Meanwhile, high-density train operation and complex environments impose higher demandson resource utilization, traffic density, operational resilience, and safety of train control systems. Therefore, it has become an urgent industry need to develop a train control system that features simplified architecture, minimal ground equipment, short installation and commissioning time, high transport efficiency, low construction and maintenance costs, and robust safety and resilience.

Product Features

ystem-Wide Intelligent Upgrade:
SThe product marks a milestone in the evolution of signaling systems from automation to intelligence,comprehensively enhancing intelligencethrough intelligent perception, intelligent dispatching, intelligent maintenance, and intelligent training. Traditional CBTC functions are redefined and augmented with intelligent capabilities, significantly reducing system complexity and streamlining trackside equipment while lowering both construction costs and O&M difficulty.
Significant Efficiency Gains
Trains can autonomously request and release resources as needed, moving beyond the traditional route-based resource allocation model. By breaking down line resources into dynamically configurable “minimum units”, the systemimproves resource utilization and traffic density.
Comprehensive Fallback Solution
The system proposes a primary train control solution based on "train-to-train communication", with a fallback mode of "autonomous perception-based operation". It supports seamless, on-site system upgrades, integrated with ground control systems,for rapid service restoration after line failures. This minimizes the impact of failures on train operation and significantly enhances system resilience.
Enhanced Safety Performance:
The system incorporates perception-based clearance detection, enabling immediate obstacle recognition and timely braking to achieve active collision avoidance. It identifies a wide range of intrusions, including trains, pedestrians, etc., significantly improving safety in complex scenarios.
More Flexible Dispatching:
With fine-grained resource management, the system enables trains to reverse at any location along the line. In the event of an emergency, the system can autonomously execute turnback and direction change operations based on dispatcher commands, and continue running toward the designated destination. This reduces reliance on centralized ground control and enhances system flexibility.

Application Examples

Beijing Subway Line 11 Demonstration Project: The Winter Olympics BranchLine has obtained full SIL4 product certification and trial operation authorization. The system architecture is restructured to reduce overall complexity. In degraded mode, autonomous perception–based train operation is adopted to improve operational efficiency under such conditions.

Taiyuan Metro Line 1: PB-TACS fully automated operationpassenger project features active obstacle detection and protection.It is compatible with interlocking-level + perception-based fallback control grade, resulting in a system with enhanced resilience.It also supports triple-redundant train-to-ground communication and ITE SIL4 redundant positioning.

Background

Product Features

ystem-Wide Intelligent Upgrade:

Significant Efficiency Gains

Comprehensive Fallback Solution

Enhanced Safety Performance:

More Flexible Dispatching: