Say goodbye to rough-and-ready management! Feiyuanguangdian’s Personnel Positioning System unlocks a new paradigm for tunnel safety management.

In the landscape of urban rail transit, highway and railway, and water conservancy projects, tunnel construction has always been a core high-risk operation—deep underground, natural light is completely blocked, the working face is cluttered with steel reinforcement and complex equipment, and hidden risks such as surrounding rock collapses, water inrushes, and gas leaks pose significant challenges to personnel safety management. As national requirements for tunnel engineering safety management continue to rise, “technology-driven safety” and “mechanization replacing manpower, automation reducing headcount” have become the mainstream directions of industry development. The traditional, extensive management model relying on manual inspections and walkie-talkie communication can no longer meet the demands for refined, intelligent safety control in tunnel construction. Feiyuanguangdian has deeply cultivated the field of positioning technology, focusing on the core pain points of tunnel construction, and developed its proprietary Feiyuanguangdian personnel positioning system. With core capabilities in precise positioning, intelligent early warning, and efficient management, it provides a “safety umbrella” for tunnel construction workers, helping the industry fulfill safety responsibilities and enhance construction efficiency.

The core pain points of safety management in tunnel construction are “unseen, unmanageable, and slow to respond”—unclear distribution of personnel at the excavation face, difficulty in issuing early warnings for unauthorized entry into high-risk areas, and challenges in locating personnel after an emergency. These issues often become critical factors that exacerbate safety incidents. Particularly in long‑distance, large‑cross‑section tunnel projects, under traditional management models, supervisors cannot track underground personnel in real time; when a hazard occurs, rescue teams struggle to quickly pinpoint the location of trapped workers, resulting in significant loss of precious rescue time. Grounded in the realities of tunnel construction, Feiyuanguangdian has developed a targeted personnel positioning system that breaks down the “information barriers” of underground spaces, ensuring that every tunnel worker’s location is clearly traceable and that every safety risk is preventable and controllable. This truly elevates management from “passive response” to “proactive prevention,” aligning with the national core requirements for tunnel engineering safety management: “proactive pre‑control and full‑process dynamic management.”

Unlike general-purpose positioning products, Feiyuanguangdian’s Personnel Positioning System is tailored for the complex environment of tunnels, employing an innovative architecture that combines “UWB ultra-wideband core technology with multi‑technology integration,” thereby effectively addressing industry challenges such as signal interference, inaccurate positioning, and incomplete coverage within tunnels. The system incorporates a TOF time-of-flight positioning algorithm, achieving static positioning accuracy of 0.1–0.3 meters and stable dynamic positioning accuracy of 0.5–1 meter. Even in tunnel bends, junctions, and areas with high electromagnetic interference, it delivers precise, dead‑zone‑free positioning across the entire area, completely overcoming the limitations of traditional ZigBee and RFID technologies—namely, weak anti‑interference capabilities and insufficient accuracy. Meanwhile, the system innovatively integrates BeiDou dual‑mode positioning with LoRa low‑power communication technology, paired with intrinsically safe, explosion‑proof positioning base stations and lightweight, wearable personnel identification cards. This not only adapts to the harsh construction conditions of tunnels—characterized by high humidity, abundant dust, and elevated methane levels—but also meets the long‑duration, low‑power requirements of extended operations, ensuring real‑time, stable transmission of positioning data and providing reliable technical support for tunnel construction safety management.

As a national high-tech enterprise deeply rooted in the positioning field, Feiyuanguangdian has consistently been guided by the safety needs of tunnel construction, assembling a dedicated R&D team to master core tunnel‑positioning technologies. To date, it has secured 17 invention patents and 29 software copyrights, establishing a distinctive technological moat. The core hardware, positioning algorithms, and management platform of Feiyuanguangdian’s personnel‑positioning system are all 100% domestically developed, not only eliminating reliance on external technologies but also precisely meeting domestic regulatory requirements for tunnel construction. The solution comprehensively addresses key needs such as real‑name personnel management, trajectory tracking, subcontractor oversight, and multi‑system integration, fully aligning with the latest national and industry safety‑management standards. Moreover, tailored to the specific characteristics of different tunnel types—railway tunnels, highway tunnels, hydraulic tunnels, and more—Feiyuanguangdian offers end‑to‑end customized solutions, covering everything from preliminary site surveys and Base Station deployment to post‑implementation system debugging and functional optimization, ensuring seamless alignment with each project’s unique requirements.

In terms of tunnel construction safety management, Feiyuanguangdian’s Positioning System has established an end-to-end protection framework encompassing “pre-event early warning, in-process control, and post-event traceability,” with each function precisely tailored to the specific needs of tunnel construction scenarios. Through a visualized intelligent management platform, supervisors can monitor in real time the distribution of personnel across different tunnel sections, their movement trajectories, and dwell times, accurately tracking personnel dynamics in critical areas such as the excavation face, support zones, and hazardous-material storage areas—enabling remote, comprehensive oversight without the need for on-site patrols. For high-risk zones like unsupported exposed faces, areas with excessive gas levels, and blasting operation sites, electronic fences can be flexibly configured; should unauthorized personnel enter or remain in these areas, the system immediately triggers multiple layers of alerts, including on-site audio‑visual alarms, pop-up notifications on the backend, and SMS reminders to management, while simultaneously activating ventilation and surveillance equipment to swiftly address potential safety hazards and nip risks in the bud.

Emergency response capability is the “last line of defense” for tunnel construction safety, and Feiyuanguangdian’s Personnel Positioning System has demonstrated tremendous practical value in emergency rescue operations. When workers encounter a hazardous situation, they can trigger an SOS alarm with a single touch on their positioning card; the system instantly pinpoints the rescuer’s location and displays an alert, enabling the command center to quickly assess the distribution of personnel and equipment in the vicinity and issue evacuation and rescue instructions via system‑wide broadcasts, thereby significantly reducing emergency response time. Meanwhile, the system’s trajectory playback feature allows for precise tracing of workers’ historical movement paths, providing authoritative data to support accident analysis and liability determination, further standardizing tunnel construction safety management procedures. In addition, the system can automatically tally the number of workers and man-hours in each area, enabling digital management of tunnel construction personnel attendance, effectively preventing unauthorized absences and shifts, and offering quantitative evidence to support project management.

In terms of deployment and operations, Feiyuanguangdian’s Personnel Positioning System fully accounts for the dynamic and complex nature of tunnel construction, employing a wired-plus-wireless dual-mode deployment approach. The Base Stations support self-organizing network functionality, eliminating the need for complicated cabling, resulting in short construction cycles and rapid go-live times. Moreover, base station locations can be flexibly adjusted according to tunnel excavation progress, significantly reducing construction disruptions and capital expenditures. Both the positioning base stations and Bluetooth Beacons are equipped with high-capacity, long-life batteries, offering a battery life of 4 to 10 years, thereby minimizing the frequency and cost of subsequent maintenance. In addition, Feiyuanguangdian provides end-to-end, full-lifecycle services—ranging from initial needs consultation and solution design to post‑implementation technical training and 24/7 fault troubleshooting—ensuring the system’s stable operation and giving construction companies peace of mind, confidence, and reassurance.

With its superior product quality, precise positioning capabilities, and customized solutions tailored to specific scenarios, Feiyuanguangdian’s Personnel Positioning System has been successfully deployed in over 3,500 real-world projects, including the Yaxia Hydropower and Water Conservancy Tunnel and the Northern Gulf Water Resource Allocation Project Tunnel. It is widely used in tunnel construction across railways, highways, water conservancy, municipal works, and other sectors, serving numerous key organizations such as the National Energy Group and major state-owned construction enterprises. The system has repeatedly and effectively issued early warnings for risky behaviors like unauthorized intrusions and personnel entrapment. In scenarios involving sudden power outages or potential surrounding rock collapses, it provides accurate data support for orderly personnel evacuation and emergency rescue, earning high recognition and widespread acclaim from the market.

Every meter of tunnel advancement carries the builders’ sweat and hopes for safety, and is crucial to the project’s high-quality progress. Feiyuanguangdian will continue to be guided by national requirements for tunnel engineering safety management, deeply invest in the research and development of tunnel personnel positioning technology, constantly optimize the functions and performance of its Positioning System, and promote the deep integration of positioning technology with tunnel construction. Taking “advancing safety through science and technology” as its mission, it will leverage robust domestically developed technologies to fortify the safety safeguards of tunnel construction, protect the lives and safety of every underground worker, and help China’s tunnel engineering enter a new journey toward greater safety, intelligence, and efficiency.