Technical Specification - VBOX 3iS Dual Antenna RTK
GNSS Specifications
Velocity |
|
|---|---|
| Accuracy | 0.1 km/h (averaged over 4 samples) |
| Update rate | 100 Hz |
| Maximum velocity | 1200 mph |
| Minimum velocity | 0.1 km/h |
| Resolution | 0.01 km/h |
| Latency | 20 ms (fixed) |
Absolute Positioning |
|
|---|---|
| Accuracy* with RTK |
V: 10 mm H: 5 mm |
| Accuracy* with DGPS |
V: 0.5 m H: 0.3 m |
| Accuracy* with SBAS |
V: 1.2 m H: 0.8 m |
| Accuracy* Standalone |
V: 1.8 m H: 1.2 m |
| Update rate | 100 Hz |
| Resolution | 1.8 mm |
*Specifications will vary depending on the number of satellites used, obstructions, satellite geometry (PDOP), multipath effects, and atmospheric conditions. For maximum system accuracy, always follow best practices for GNSS data collection.
Distance |
|
|---|---|
| Accuracy | 0.05% (>50 cm per km) |
| Units | m |
| Update rate | 100 Hz |
| Resolution | 1 cm |
Acceleration |
|
|---|---|
| Accuracy | 0.5 % |
| Maximum | 20 g |
| Resolution | 0.01 g |
| Update rate | 100 Hz |
Heading |
|
|---|---|
| Resolution | 0.01° |
| Accuracy | 0.1° |
Time |
|
|---|---|
| Resolution | 0.01 s |
| Accuracy | 0.01 s |
Brake Distance Accuracy |
|
|---|---|
| Accuracy | ± 1.8 cm |
Slip, Pitch, Roll Angle Accuracies
Dual antenna (GNSS) derived.
|
Antenna Separation |
Slip Angle (RMS) |
|---|---|
| 0.5 m | < 0.2° |
| 1.0 m | < 0.1° |
| 1.5 m | < 0.067° |
| 2.0 m | < 0.05° |
| 2.5 m | < 0.04° |
IMU Specifications
|
|
Gyroscopes (Angular rate sensors) |
Accelerometers |
|---|---|---|
| Dynamic range | ± 450°/s | ± 20 g |
| Nonlinearity | 0.01 % of full scale | 0.1 % of full scale |
| Effective Resolution | 20 bits (0.00085°/s) | 20 bits (0.00004 mg) |
| Bandwidth | 50 Hz | 50 Hz |
| Noise density | 0.01°/s/√Hz | 60 μg/√Hz |
| Bias stability | 0.0028°/s | 15 μg |
| Bias repeatability (1 year) | 0.2°/s | 0.005 g |
Roll and Pitch Angle Accuracies
IMU derived (IMU Kalman Filter enabled)
|
Pitch Angle |
Roll Angle | |
|---|---|---|
| Accuracy (RMS) | 0.06° | 0.06° |
Outputs
CAN Output |
|||
|---|---|---|---|
| Output data rate |
Selectable baud rate:
Software controlled CAN termination. |
||
| Data available |
Outputs: Satellite count, time, position, speed, heading, body heading, height, vertical velocity, longitudinal acceleration, lateral acceleration, distance, IMU heading* , IMU roll angle* , IMU pitch angle* , X acceleration, Y acceleration, Z acceleration, pitch rate, roll rate, yaw rate, Robot heading *with IMU enabled. Results: Trigger event time, trigger speed, start speed, end speed, deceleration test time, lap time, split time, radius of turn. |
||
RS232 Output |
|
|---|---|
| Output data rate | Up to 100 Hz |
Ethernet Output |
|
|---|---|
| Output data rate | 100 Hz |
Digital Output |
|
|---|---|
| Signal levels |
Low = 0 V, High = 5 V. Max. frequency 4.4 kHz |
| Output type | Speed or Lap Beacon |
GNSS Antenna Supply |
|
|---|---|
| Supply voltage | 5 V DC |
Inputs
Input Power |
|
|---|---|
| Input voltage range | 7.5 – 30 V DC |
| Power | 7.5 W (maximum) |
Digital Input |
|
|---|---|
| Input function | Brake event trigger / track marker |
CAN Input |
|
|---|---|
| Input function | Wheel Speed Input |
RS232 Input |
|
|---|---|
| Input functions | DGPS/RTK Corrections |
| Configuration / External IMU | |
Environmental and Physical
| Weight | 480 g (approximate) |
| Size | 139.21 mm x 78.5 mm x 38 mm |
| Operating temperature | - 20 °C to + 70 °C |
| Storage temperature | - 40 °C to + 85 °C |
| IP rating | IP67 |