Overview

The CFJZ GNSS/Beidou Differential Reference Station is a high-performance GNSS correction base station designed to improve mobile positioning accuracy from meter-level to centimeter-level RTK and achieve sub-meter static accuracy.
It continuously tracks satellite signals, compares them with the known fixed coordinates, calculates satellite errors, and broadcasts correction data to mobile positioning terminals.

This reference station is widely used in mines, ports, construction sites, industrial parks, petrochemical areas, municipal management, intelligent transportation, and other outdoor fixed-point positioning environments.

Key Features

1. Centimeter-Level Accuracy

• RTK dynamic accuracy: 2 cm

• Static accuracy:

  • Horizontal: 2.5mm + 0.5ppm

  • Vertical: 5.0mm + 0.5ppm

2. Multi-Format Differential Output

Supports mainstream differential formats:

• RTCM 2.x

• RTCM 3.x

• Ntrip

Compatible with all major GNSS receivers and positioning terminals.

3. Multi-Mode Communication

• 4G full-netcom backhaul

• Optional 5G/WiFi

• Supports TCP, UDP, HTTP network protocols

• Optional UWB differential broadcast (>100m) for local positioning networks

4. Industrial-Grade Outdoor Design

• Fully sealed fiberglass + aluminum alloy housing

• IP67 waterproof/dustproof

• Works in harsh environments: –40°C to +80°C

• Suitable for long-term rooftop / pole installation

5. High Stability & Reliability

• Initialization reliability > 99.9%

• LED status lights for easy status monitoring

• Stable 24/7 continuous operation

System Architecture

① Beidou/GNSS Satellite → Base Station → Mobile Positioning Terminals

1. The base station receives high-precision satellite signals.

2. Compares with preset known coordinates.

3. Calculates satellite clock/orbit atmospheric errors.

4. Broadcasts correction data via:

   • 4G/5G/WiFi network

   • RJ45 wired network

   • UWB short-distance broadcast

② Mobile terminals using correction data

• Vehicle positioning terminals

• Personnel positioning tags

• Smart helmets

• Portable RTK units

• UWB hybrid positioning terminals

All can receive differential data to achieve centimeter-level positioning.

Device Structure

• LED indicator area

• DC input port

• RJ45 network port

• Mounting holes

• Reinforced waterproof shell (fiberglass + metal)

Shell size: φ218 × 115 mm
Weight: <1.2 kg

Application Scenarios

• Mining open-pit positioning

• Petrochemical plant management

• Port vehicle dispatching

• Industrial park RTK positioning

• Tunnel construction

• Smart manufacturing zones

• Municipal engineering

• Outdoor RTK fixed infrastructure