The KJ1879J-K Mining Intrinsically Safe Identification Card is a wearable positioning terminal designed for underground coal mine personnel tracking systems. It provides accurate personnel identification, positioning, communication, and emergency alarm functions.
Based on UWB ultra-wideband positioning technology, the identification card enables high-precision personnel positioning and real-time data communication with underground positioning infrastructure. It integrates emergency alarm, two-way communication, battery monitoring, and safety protection functions, providing reliable support for underground worker safety management and emergency response.
Key Features
High-Precision Personnel Positioning
Adopts UWB ultra-wideband positioning technology to achieve centimeter-level positioning accuracy, with maximum static positioning error ≤ 0.2 m.
Intelligent Safety Warning
Supports emergency alarms through high-brightness LED indicators and audible alerts, while synchronously transmitting alarm information to the monitoring center.
Real-Time Data Interaction
Communicates with positioning substations through wireless networks, enabling real-time upload of personnel location information and receiving control commands from the system.
Multiple Safety Protection Functions
Designed with IP67 protection rating and dust-proof, waterproof, and impact-resistant features to ensure reliable operation in harsh underground environments.
Abnormal Condition Detection
Monitors abnormal conditions such as inactivity or overdue inspection time and automatically sends SOS alarm signals to improve personnel safety management.
Intelligent Power Management
Provides real-time battery status monitoring. When battery power is low, the device automatically activates LED flashing and system alarms to prevent unexpected shutdown.
Long Communication Distance
Supports UWB and LoRa wireless communication technologies, enabling reliable data transmission in underground mine environments.
Applications
Technical Specifications
| Parameter | Specification |
| Positioning Technology | UWB / LoRa |
| UWB Frequency | 3.5–4.5 GHz |
| UWB Transmit Power | ≤25 dBm |
| UWB Receiver Sensitivity | -60 dBm |
| UWB Transmission Distance | ≤600 m (open space, no obstacles) |
| LoRa Frequency | 880–950 MHz |
| LoRa Transmit Power | ≤25 dBm |
| LoRa Receiver Sensitivity | -60 dBm |
| LoRa Transmission Distance | ≤600 m (open space, no obstacles) |
| Protection Rating | IP67 |
| Continuous Operating Time | ≥7 days (depending on usage conditions) |
| Explosion Protection | Intrinsically Safe Design |
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