en.Wedoany.com Reported - The first "Smart Detection System for Stranded Personnel in Expressway Tunnels" in Hebei Province, jointly developed by China Communications Asset Management | China Communications Maintenance Chengping Expressway and Chengde Mobile, was recently officially deployed on the Chengping Expressway. It aims to address the safety control challenges of extra-long tunnels and empower the coordinated development of the Beijing-Tianjin-Hebei region. This system provides technical support for emergency rescue operations in Chengping Expressway tunnels, filling the gap in related key technologies.
As a key corridor between Beijing and Hebei, the Chengping Expressway has a bridge and tunnel ratio as high as 67.1% along its entire length, traversing the core area of the Yanshan orogenic belt. The expressway features dramatic terrain fluctuations and complex rock mass structures, making tunnel safety operations and emergency response a core management issue. Before the system's deployment, there had been a technological shortfall in monitoring stranded personnel within the enclosed environment of tunnels.
China Communications Asset Management | China Communications Maintenance Chengping Expressway is responsible for the expressway's operation and management, while Chengde Mobile provides communication technology support. The two parties jointly formed a research team to advance the system's development. This system integrates communication technologies such as 5G networks, deploys dedicated base stations at tunnel entrances, and constructs a full-area signal sensing network capable of accurately capturing mobile phone signals to achieve personnel positioning.
The system enables non-contact, all-weather, round-the-clock intelligent monitoring in complex tunnel environments and integrates deeply with tunnel video surveillance feeds. Equipped with backend intelligent algorithms, it establishes a closed-loop management system of "perception—analysis—warning—response," which can significantly improve the efficiency and accuracy of emergency rescue operations, driving the transformation of tunnel safety management towards "technical prevention."
The deployment of this system is a practical step in implementing Hebei's "15th Five-Year Plan" for the construction of an intelligent, comprehensive, and multi-dimensional transportation network. In the next step, Chengping Expressway will deepen strategic cooperation with leading enterprises, actively explore potential expressway operation projects, and contribute to the high-quality development of transportation. The implementation of this system also provides valuable experience for safety control in mountainous expressway tunnels.
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