From “Positioning” to “Protection”: A Popular Science Explanation of the Personnel Positioning System

When inspection personnel in a chemical industrial park inadvertently enter a hazardous area, the system immediately issues an alert; when an accident occurs underground in a mine, rescue teams can use precise positioning to quickly locate those trapped; and when a dementia patient at a nursing home steps outside the safe zone, caregivers receive an immediate notification—these seemingly “smart” scenarios all rely on the support of a Personnel Positioning System. With the emphasis on intelligent safety production in the 15th Five-Year Plan and the mandatory enforcement of relevant industry standards, Personnel Positioning Systems have evolved from “optional tools” into “essential infrastructure,” permeating many aspects of our work and daily life. Today, we’ll provide a comprehensive overview to demystify these systems.

I. What is a Personnel Positioning System? It’s more than just “knowing where people are”

Many people’s understanding of a Personnel Positioning System is limited to “viewing personnel locations in real time,” but that’s only its most basic function. A true Personnel Positioning System is an intelligent solution that integrates technologies such as the Internet of Things, big data, and artificial intelligence, enabling end-to-end closed-loop management encompassing “perception—early warning—coordination—response—traceability.” At its core, it transforms “location data” into actionable value, elevating it from mere “location awareness” to a dual pillar of “life protection” and “efficiency enhancement.”

Simply put, a complete personnel positioning system consists of three main components: first, positioning terminals (such as positioning wristbands, chest badges, and employee ID cards) worn on personnel to transmit location signals; second, positioning Base Stations (such as UWB Base Stations and Bluetooth Beacons) deployed in designated areas to receive terminal signals and calculate locations; and third, a management platform that centrally displays real-time personnel locations, movement tracks, alert information, and more, enabling remote monitoring and data analysis. Working in concert, these three components can handle the entire process—from “signal acquisition” to “data processing” and finally to “decision output.”

It is worth noting that the “Industrial Internet + Hazardous Chemical Safety Production” Construction Specification, Part 3: Personnel Positioning (AQ 3064.3-2025), issued by the Ministry of Emergency Management on January 4, 2026, came into mandatory effect on July 1 of the same year. This marks the entry of personnel positioning management in China’s hazardous chemical sector into a new phase of standardization and regularization, further highlighting the importance of personnel positioning systems.

II. Unveiling Core Technologies: Different Scenarios, Different Choices

The accuracy, coverage, and cost of a Personnel Positioning System largely depend on the positioning technology employed. Currently, the mainstream technological approaches on the market are divided into three major camps, each catering to the distinct needs of different scenarios. We’ll break down several of the most commonly used positioning technologies in plain language:

1. UWB (Ultra-Wideband): The “King” of High-Precision Positioning

UWB is currently the absolute benchmark in the field of high-precision indoor positioning, with positioning accuracy ranging from 10 to 30 centimeters; under ideal conditions, it can even achieve sub-10-centimeter precision, effectively pinpointing an individual’s exact standing position. Its core principle involves transmitting ultra-narrow nanosecond pulses and employing a “time-of-arrival difference” algorithm to accurately measure the distance between the positioning terminal and the Base Station, thereby calculating the precise coordinates.

The greatest advantage of this technology is its strong anti-interference capability; even in environments cluttered with metal equipment and characterized by complex electromagnetic conditions—such as chemical industrial parks and mines—it can maintain stable positioning. Moreover, it offers rapid data refresh rates, enabling real-time trajectory tracking. However, its drawbacks are also quite apparent: the hardware costs are relatively high, a large number of Base Stations must be deployed to achieve comprehensive coverage, and network deployment is comparatively complex. As such, it is best suited for high-risk scenarios that demand extreme precision, such as areas containing major chemical hazards, underground mine shafts, and correctional facilities.

2. Bluetooth: The “Balancer” of Cost-Effectiveness and Flexibility

Bluetooth-based positioning—particularly low-energy Bluetooth—is one of the most widely deployed positioning technologies today, offering accuracy within 3 to 5 meters, which is sufficient for “rough‑location” needs in most scenarios. Its underlying principles fall into two categories: traditional Bluetooth determines location by measuring received signal strength, while the AOA/AOD techniques introduced in the Bluetooth 5.1 standard leverage antenna arrays to measure the angle of arrival, enabling sub‑meter‑level precision.

The core advantages of Bluetooth-based positioning are its low cost and minimal power consumption; a single button-cell battery can power the Location Tag for several years. Moreover, the widespread adoption of smartphones makes it extremely easy to deploy, eliminating the need to carry dedicated terminals. However, its drawback is susceptibility to environmental interference—walls and obstacles can cause signal drift—making it best suited for high‑density, cost‑sensitive settings such as smart offices, commercial complexes, nursing homes, and hospitals.

3. Fusion-based Localization: The “Optimal Solution” for Complex Scenarios

Single technologies often struggle to meet all the demands of complex scenarios, so “fusion positioning” (such as UWB + Bluetooth) is becoming the industry mainstream. Its core concept is “high precision in critical areas, low cost in ordinary areas”: deploy UWB Base Stations in hazardous core zones to achieve centimeter-level monitoring; and install Bluetooth Beacons in standard office spaces, corridors, and other areas to enable presence-based positioning or coarse‑grained location tracking—balancing safety with effective overall cost control.

Fusion technology is well-suited for “zone‑based positioning” (e.g., determining whether a person has entered or exited a specific area), with extremely low costs, and is commonly used for warehouse inventory management and access‑control check‑ins. In contrast, LoRa technology excels at long‑range transmission, making it ideal for outdoor, wide‑area applications such as livestock farming and outdoor pipeline inspections; it is often paired with Bluetooth to achieve a combination of “wide coverage plus low cost.”

III. Application Scenarios: Beyond Industry, Pervading All Aspects of Daily Life

The application of the Positioning System has long gone beyond the scope of industrial safety; from high-risk industries to areas vital to people’s livelihoods, and from public safety to everyday management, its presence is evident everywhere. Let’s categorize it by scenario to see what practical problems it can actually address:

1. Industrial Safety: Safeguarding the “Lifeline” of High-Risk Workers

This is the most critical application scenario for the Positioning System. In high-risk environments such as chemical parks, mines, tunnels, and power facilities, the system can perform four key functions: first, it provides real-time monitoring of personnel distribution to prevent unauthorized entry into hazardous areas; second, it establishes electronic fences that immediately trigger audible and visual alarms when personnel trespass into restricted zones; third, it supports emergency rescue operations by quickly pinpointing the location of trapped individuals during an incident, thereby gaining precious time for rescue efforts; and fourth, it enables trajectory tracking, allowing users to review past movement paths for accident analysis and liability determination.

For example, in a large chemical industrial park, an inspector fainted after inhaling trace amounts of harmful gas. The system detected that the inspector’s movement had been stationary for more than five minutes, immediately triggering an alarm and displaying the on-site surveillance feed. Rescue personnel arrived at the scene within three minutes, successfully preventing the incident from escalating—this is a true demonstration of the life-saving value of the Personnel Positioning System.

2. Public Services: Thoughtful Care for the Elderly, the Weak, the Sick, and the Disabled

In nursing homes, Location Tags (wristbands) can monitor seniors’ activity in real time; if a senior leaves a safe zone or experiences a fall or an emergency request for help, caregivers receive immediate alerts, making this solution especially suitable for caring for individuals with dementia. In hospitals, the Positioning System enables staff scheduling and prevents special patients from getting lost, while also optimizing patient flow through movement‑pattern analysis to enhance the efficiency of medical services. In kindergartens, location‑enabled name tags allow parents to track their children’s whereabouts in real time, helping to ensure they remain under supervision.

3. Public Administration and Business: Enhancing Efficiency, Optimizing Experience

In large shopping malls and convention centers, the Positioning System can provide visitors with intelligent navigation, guiding them to quickly locate their target stores or booths, while also tracking visitor traffic and identifying popular areas, thereby offering data support for business operations. In enterprises and public institutions, the Positioning System enables automated attendance recording and real-time monitoring of employees’ presence, and it can also help equipment maintenance personnel swiftly pinpoint devices requiring repair, thus enhancing management efficiency. In special facilities such as prisons and detention centers, the Positioning System allows for real-time monitoring of inmates, reducing supervision risks.

4. Other Scenarios: Unlock More Possibilities

In addition to the aforementioned scenarios, the Positioning System is also widely used in logistics and warehousing (tracking the movement of personnel and goods), scientific research and the military (locating researchers and monitoring military operations), construction (ensuring the safety and management of workers), and other fields. As the technology evolves, its scope of application continues to expand.

IV. Industry Standards and Key Considerations for Selection: Avoid Common Pitfalls and Choose the Right Solution

With the mandatory implementation of the AQ 3064.3-2025 standard, the deployment and selection of Personnel Positioning Systems have also been subject to clear specifications. For enterprises, when making a selection, it is essential to pay attention to the following points to avoid pitfalls:

First, clearly define the application requirements. For high‑risk core areas, prioritize UWB technology; in general‑purpose zones, Bluetooth or fused positioning can be used; and for wide‑area scenarios, consider a LoRa‑plus‑Bluetooth solution to avoid unnecessarily driving up costs in pursuit of “high precision.” Second, ensure compliance. Particularly in industries such as hazardous chemicals and mining, positioning devices must obtain explosion‑proof certification and meet an ingress protection rating of IP68 or higher, while also satisfying the standards’ requirements for positioning accuracy, data upload frequency, and alarm response time—for example, static positioning error no greater than ±3 meters, with one‑button alarms triggered and notifications delivered within 5 seconds.

In addition, be wary of three common pitfalls: first, the “laboratory‑grade accuracy” trap—some manufacturers claim centimeter‑level accuracy, but this is typically measured in open, interference‑free environments; in real industrial settings, you should focus on the system’s resistance to interference. Second, the “feature bloat” trap—while a system’s core value lies in the timeliness and accuracy of its early warnings, a system with a high false‑alarm rate will only increase management overhead. Third, the “hardware silo” trap—good positioning systems should integrate seamlessly with existing platforms such as MES, video surveillance, and emergency broadcasting, enabling closed‑loop management.

V. Future Trends: From “Capable of Positioning” to “More Intelligent”

With the continuous advancement of artificial intelligence and big data technologies, the Personnel Positioning System is evolving toward “greater intelligence, greater integration, and greater convenience.” In the future, it will no longer be limited to “positioning” and “early warning”; instead, it will integrate functions such as personnel behavior analysis and risk prediction to achieve “proactive prevention”—for example, by analyzing individuals’ movement patterns to anticipate risks of non-compliant operations and issue timely alerts. At the same time, positioning devices will become more compact and energy-efficient, with simpler deployment; for instance, wireless-synchronized UWB technology can significantly shorten the construction timeline in older factories.

From the perspective of market structure, as industry standards become more refined and technology advances, market concentration will continue to rise. Leading companies that possess independently developed core technologies, extensive industry experience, and a comprehensive service system will capture an increasing share of the market. Meanwhile, personnel positioning systems will evolve from “industrial safety infrastructure” to “the central hub of intelligent management,” playing an even greater role in areas such as production safety, public services, and public administration.

Conclusion: Boundaries Defined, Protection Endless

From centimeter-level precise tracking to a closed-loop safety system covering the entire process; from safeguarding lives in high-risk industries to providing thoughtful companionship in everyday life, the evolution of the Personnel Positioning System is, at its core, a process of leveraging technology to enhance both “safety” and “efficiency.” It not only addresses the fundamental question of “where people are,” but also tackles deeper issues such as “whether human behavior is safe,” “whether risks are controllable,” and “whether emergency responses are timely.”

As the 15th Five-Year Plan continues to advance the intelligentization of workplace safety and related technologies keep evolving, personnel positioning systems will find their way into more settings, becoming the “invisible guardians” in our daily lives. With the support of technology, we can look forward to safer production, greater peace of mind, and precise protection for everyone’s safety.