Personnel Positioning Management System Project of Fujian Huadian Kemen Power Generation Co., Ltd.
I. Project Background
Fujian Huadian Kemen Power Generation Co., Ltd. is located on the southern shore of Luoyuan Bay, within the Kemen Port Area in Lianjiang County, Fuzhou City. It is a wholly owned subsidiary of China Huadian Corporation’s Fujian Branch. Established in 2003, the company has a total installed capacity of 2.4 million kilowatts, comprising four 600 MW ultra-supercritical coal-fired generating units, a 70,000‑ton class coal terminal, and a 10,000‑ton class heavy‑lift terminal. It serves as a key power‑supply backbone for Fujian Province and a critical power plant within the East China Grid.
Due to the complex architectural layout of the plant—comprising the main workshop, coal‑handling trestle, wharf, and other facilities—along with dense equipment installations and a large number of personnel and departments, conventional management approaches struggle to achieve integrated control over people, equipment, and the environment. This results in significant safety risks, slow emergency response times, and low production‑collaboration efficiency.
II. Project Objectives
Enhanced Safety Management: Enables real-time personnel tracking and risk alerts within the plant, helping to prevent hazards such as unauthorized entry into hazardous areas and non-compliant operations.
Enhanced Management Efficiency: By leveraging features such as trajectory playback and electronic fencing, inspection workflows are optimized, reducing unnecessary inspections and equipment failure rates.
Emergency Response Optimization: In the event of an accident, rapidly locate trapped individuals, integrate video surveillance and emergency broadcasting, and reduce response times.
Compliance and Cost Reduction: Meet the requirements of the Measures for the Supervision and Administration of Power Safety Production, reduce labor‑intensive inspection costs, and enhance management transparency.
III. Technical Solution
1. System Architecture
Positioning Layer: A Bluetooth-based indoor–outdoor integrated positioning network that provides coverage across the entire plant area, including the main workshop, coal-handling system, and wharf.
Transport Layer: A hybrid network of Bluetooth Beacon and LoRa Base Station, supporting signal penetration in complex environments and low-power transmission.
Platform Layer: Feiyuanguangdian’s self-developed “Power Plant Personnel Positioning and Management Platform,” which integrates GIS mapping, video surveillance, emergency broadcasting, and other systems.
Application Layer: Provides dual-platform support for web and mobile, with multi-role permission management.
2. Hardware Deployment
Bluetooth Beacon: Deployed at key locations throughout the plant—such as equipment floors, stairwells, and the boundaries of hazardous areas—at intervals of 50–80 meters. It features an IP67 protection rating and supports operation across a wide temperature range of −40°C to +85°C.
Personnel tag: badge‑style dual‑mode tag (Bluetooth + LoRa), featuring an integrated SOS emergency button and low‑battery alert, with a battery life of ≥6 months.
Gateway devices: Deployed in distribution rooms, control centers, and other areas to aggregate data and perform protocol conversion.
3. Positioning Technology
Indoor–Outdoor Integrated Positioning: Based on a fused algorithm that combines Bluetooth Angle of Arrival (AOA) and Received Signal Strength Indicator (RSSI), it achieves:
Indoor: positioning accuracy of 3–5 meters, with metal‑interference resistance improved by 40%;
Outdoor: Using LoRa signal fingerprint matching, positioning accuracy is ≤10 meters, covering open areas such as terminals and coal‑handling trestles.
Dynamic Calibration: By integrating the plant’s GIS map with the equipment topology, it automatically corrects positioning errors caused by multipath effects.
IV. Core Functional Modules
Real-time positioning | Real-time display of personnel locations across the entire plant, with support for hierarchical viewing on a 3D map (e.g., main plant building, wharf, office area). | Based on the fusion of GIS maps and Bluetooth positioning data, the update frequency is ≤2 seconds. |
Trajectory Query | Trace personnel historical trajectories, with support for filtering by time and location, and display of stop durations and event logs at trajectory points. | Data is stored for at least one year and can be exported in Excel or PDF format. |
Electronic fence | Customize safety zones, no‑entry zones, and work zones; when a boundary is crossed, trigger an audio‑visual alarm, send an SMS notification, and activate video linkage. | Supports polygonal and circular fence drawing, with a false alarm rate of ≤0.5%. |
One-click alarm | When personnel press and hold the SOS button on the tag, the system automatically sends their location and health data (heart rate/temperature) to the emergency command center. | Alarm response time ≤ 3 seconds, with automatic retrieval of footage from nearby cameras upon activation. |
Video linkage | Integrates with the plant’s video surveillance system, enabling automatic retrieval of the nearest camera feed when a personnel location is clicked. | Supports protocols from mainstream brands such as Hikvision and Dahua, with latency ≤ 500 ms. |
Data statistical analysis | Generate reports on employee attendance rates, inspection coverage, boundary‑crossing incidents, and more, with filtering options by department and time period. | Employing big data visualization techniques, we generate heat maps, bar charts, and trend analyses. |
Emergency rescue | At the time of an incident, the system automatically plans the shortest rescue route and coordinates with the refuge chamber access control and the compressed-air self-rescue system. | The path-planning algorithm integrates with the plant’s 3D model and supports offline operation. |
V. System Advantages
High precision and high reliability
Bluetooth AOA + RSSI fusion positioning technology delivers 40% improved resistance to metal interference and achieves a positioning availability of ≥99.9% in complex environments.
Full-scenario coverage
Integrated indoor–outdoor positioning seamlessly covers areas such as the main plant building, coal‑handling trestle, and the wharf, eliminating signal blind spots.
Deep business integration
Integrates with the plant’s video surveillance, emergency broadcasting, and work‑permit systems to enable closed-loop management encompassing “location tracking–early warning–response.”
Low-cost and easy to deploy
Bluetooth Beacons require no wiring, reducing installation time by 60% and maintenance costs by 45%.
VI. Implementation Outcomes
Safety Benefits
Incidents of boundary violations have decreased by 92%, and violations of operating procedures have dropped by 85%. Over the past three years, there have been zero safety production liability accidents.
Management Efficiency
Inspection efficiency has improved by 40%, equipment failure rates have dropped by 30%, and annual labor‑cost savings exceed RMB 2 million.
Social benefits
It was recognized as a Level‑1 Enterprise for Power Safety Production Standardization in Fujian Province, setting a benchmark for regional safety management.
VII. Project Summary
The personnel positioning management system of Fujian Huadian Kemen Power Generation Co., Ltd. leverages a fused Bluetooth AOA and RSSI positioning technology, integrated with the plant’s GIS map and multi-system interconnection, to achieve unified control over personnel, equipment, and the environment. Since its deployment, the system has significantly enhanced the plant’s safety management capabilities and emergency response efficiency, offering a replicable solution for the intelligent transformation of the power industry.
Experience the intelligent integrated personnel positioning system solution now.
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