Dual-feet Navigation and Positioning Device

@ Product of SuperNavi Technology, Ltd. 

The device consists of two measurement nodes, one DongleBT node (integrating GNSS RTK and wireless communication), and one data processing software (installed on a user phone for real-time display or computer for post processing). It serves for real-time positioning and autonomous navigation of personnel in known or unknown environments.

Main characteristics:

• Time-synchronized data collection and storage of the two measurement nodes (each node with a built-in 9-axis inertial measurement unit, a built-in barometer and an ultrasonic ranging module for dual-feet distance)
• Time-synchronized GNSS-RTK (Global Navigation Satellite System, Real-Time Kinematic) data collection
• Real-time trajectory plotting on Google Maps
• Exporting and post-processing with the collected raw data. Output formats: KML (Google Maps), NMEA0183, TXT (Cartesian coordinate system)
• Location accuracy better than 0.5% walked distance

Node specifications:

• DongleBT (including RTK antenna): 57*51*109 mm
• DPM Wireless Module: 53*47*26 mm
• Gyro measurement range: ±2000°/s
• Gyro Bias stability: 10°/h
• Gyro Bandwidth: 180Hz
• Accelerometer range: ±16g
• Accelerometer Bias stability: 0.1mg
• Accelerometer Bandwidth: 180Hz
• Magnetic field measurement range: ±0.8Gauss
• Magnetic non-linearity: 0.1% of FS
• Ultrasonic measurement range: 2-100cm
• Ultrasonic measurement accuracy: ±5mm
• RTK positioning accuracy: 2cm (fixed solution)
• Air pressure measurement range: 300-1200 hpa
• working time per charge: >40 min
• Cumulative working time per charge: >3h
• Recommended movement speed: <2.8m/s
• DPM installation position: front foot (one on each side)
• DPM installation method: strap Velcro
• DongleBT installation method: shoulder (strap)
• Charging interface: MicroUSB (DPM/DongleBT)

Software requirements:

• mobile terminal software: Android 8 or above 
• post-processing software: Win 7 or above, 8G memory, 100G hard disk space