GRTK is a dual-antenna high-precision differential positioning and directional module (Real Time Kinematics) independently developed by Blicube. A complete RTK system can be formed through two GRTK modules (one mobile terminal and one base station terminal).
The module is based on a new generation of high-performance GNSS SoC chip design,supports multi-system multi-frequency RTK positioning, supports dual-antenna high-precision orientation, and supports GPS&GLONASS&Beidou&Galileo&QZSS navigation and positioning. It is mainly for high-precision positioning and orientation requirements such as drones, robots and intelligent driving.
Figure 1.1 Physical image of GRTK centimeter-level positioning and orientation system
|Single Point Positioning (RMS)||Horizontal：1.5m
|Heading Accuracy (RMS)||0.2 degree/1 m baseline|
|Velocity Accuracy (RMS)||0.03 m/s|
|Time Accuracy (RMS)||20 ns|
|Time to First Fix (TTFF)||Cold start < 25 s|
|Initialization Time||< 5s (typical)|
|Reacquisition||< 1 s|
|Update Rate||20 Hz|
|Inertial Navigation Accuracy||< 5% of distance travelled during GPS denied conditions|
|Working Temperature||-20℃ to +85℃|
|Power Supply||5v to 35v|
Figure 1.2 Schematic diagram of physical size
- Unmanned vehicle automatic route mission measurement.