In mine and tunnel operation scenarios, the environment is complex and ever-changing, with numerous hazardous factors. Accidents such as collapses, gas leaks, and water inrush can occur at any time. Traditional personnel positioning methods, such as GPS-based positioning, encounter signal blockage in underground environments and cannot provide accurate locations. Some simple positioning means suffer from low accuracy and poor stability, making it difficult to meet actual safety management requirements. Once an accident occurs, the inability to quickly determine personnel locations will delay rescue efforts, resulting in severe casualties and property losses. Therefore, the development of a high-precision and reliable personnel positioning solution is urgently needed, and the one-dimensional mine/tunnel personnel positioning solution has emerged accordingly.
(A) Unveiling the Principles of UWB Technology
UWB (Ultra-Wideband) technology is a wireless carrier communication technology that does not employ sinusoidal carriers but instead uses nanosecond-level non-sinusoidal narrow pulses to transmit data. These extremely narrow pulses possess extremely high time resolution, enabling accurate measurement of signal flight time in complex propagation environments and thus achieving high-precision positioning. In mines/tunnels, UWB signals can effectively overcome multipath effects and interference, maintaining positioning accuracy even in the presence of obstacles and reflected signals.
(B) Unique Advantages of UWB Positioning
(A) Base Station Design: Single Base Station for One-Dimensional Positioning
This solution adopts an innovative base station design, where one base station board integrates two base station modules, enabling a single base station to achieve one-dimensional positioning functionality. This design significantly reduces the number of base stations, lowering deployment costs and complexity. In mines/tunnels, only a few base stations need to be strategically placed to cover the entire operational area and achieve precise personnel positioning.
(B) Rich Interfaces: Seamless Integration with Various Systems
Base stations provide multiple interfaces such as TTL/485/RJ45, facilitating seamless integration with existing monitoring and management systems, data analysis platforms, etc. Through these interfaces, real-time data transmission and sharing can be achieved, combining personnel positioning information with other safety monitoring data to provide more comprehensive and in-depth support for safety management.
(C) Positioning Tags: Compact, Portable, and Feature-Rich
Positioning tags are devices carried by personnel. They are compact and portable, making them convenient for workers to wear. The tags incorporate UWB modules, sensors, and communication modules, enabling real-time transmission of personnel location information and reception of system-issued instructions. Additionally, the tags feature an SOS alarm function. In case of an emergency, workers can simply press the alarm button to send a distress signal to the system.
(A) Real-Time Positioning and Tracking: Dynamically Monitoring Personnel Movements
The system can obtain real-time location information of personnel in one-dimensional spaces (such as mine roadways or tunnels) and display it intuitively on the backend interface. Managers can view the real-time positions, movement states, and distribution of personnel at any time, promptly detecting abnormal behaviors and potential safety hazards. For example, when personnel remain in a hazardous area for an extended period, the system will issue a warning to remind managers to take appropriate measures.
(B) Electronic Fence Management: Defining Safety Boundaries
Based on the actual conditions of mines/tunnels, the system can flexibly set up electronic fences, designating hazardous areas (such as excavation faces and gas accumulation zones) as prohibited entry areas. When personnel approach or enter the electronic fence, the system will immediately issue audible and visual alarms and notify managers and relevant personnel via SMS, APP push notifications, etc. Additionally, the system can record personnel violations, providing evidence for subsequent safety management and accident investigations.
(C) SOS Alarm and Paging: Rapid Response in Emergency Situations
In case of an emergency, on-site personnel can simply press the SOS alarm button on the positioning tag. The system will immediately receive and process the alarm information, promptly notifying the monitoring room or backend personnel. Monitoring room personnel can conduct voice calls with the alarming personnel through the system to understand the on-site situation and organize rescue efforts in a timely manner. Furthermore, the system features a paging function, allowing monitoring room personnel to issue call instructions to specific individuals or all personnel to convey important information or organize evacuations.
(D) Historical Trajectory Storage and Playback: Tracing the Truth of Events
The system has the capability to store personnel movement trajectories over an extended period, recording activity paths and time information of personnel within a certain timeframe. Managers can replay the activity trajectories of personnel during a specified period based on card numbers, regions, time, etc. Through trajectory playback, the movement routes and behavior patterns of personnel can be clearly understood, aiding in the discovery of potential safety hazards, accident investigations, and liability determinations.
(A) Enhancing Safety Management Efficiency
Through real-time personnel positioning and electronic fence management, managers can promptly grasp the dynamic distribution of personnel,合理安排 (rationally arrange) work tasks, and prevent personnel from entering hazardous areas. Meanwhile, the system can automatically generate various statistical reports and analysis data, providing scientific basis for safety management decisions and improving safety management efficiency.
(B) Reducing Safety Accident Risks
High-precision positioning and timely alarm functions can detect potential safety hazards before accidents occur and take corresponding preventive measures. In case of an accident, they can quickly determine personnel locations and organize effective rescue operations, reducing casualties and property losses.
(C) Complying with Industry Safety Standards
This solution complies with the requirements of relevant national and industry safety standards, providing compliant personnel positioning solutions for mine/tunnel enterprises. Adopting this solution can help enterprises meet the requirements of safety regulatory authorities, enhance their safety management levels, and improve market competitiveness.
FR4PCB.TECH is a high-tech enterprise specializing in the wireless radio frequency field. It boasts a research and development technical team composed of senior industry engineers. Team members possess rich project experience and professional knowledge, enabling them to research, develop, and produce relevant products and solutions such as radio frequency modules, UWB positioning, digital voice coding and decoding, and power sensors according to the personalized needs of different customers. Against the backdrop of the Internet of Things (IoT), we are committed to providing users with high-quality wireless data transmission solutions, helping them enhance market competitiveness and create greater value for customers. Choosing our one-dimensional mine/tunnel personnel positioning solution means choosing safety, reliability, and efficiency.
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