Technical Specifications - VBOX 3i Single Antenna (v3)
This page covers the technical specifications for VBOX 3i Single Antenna (v3) units, for areas such as GPS, Slip, Pitch and Roll accuracies, IMU attitude accuracies, inputs, and environmental and physical attributes.
Definitions
| * | 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. |
| ** | Not using DGPS and crossing the start/finish line at 100 km/h. |
| *** | Approximately 29 MB per hour used when logging GPS data at 100 Hz; Approx. 182 MB per hour total logging capacity. |
| **** | With fixed CAN latency. |
GPS Specifications
| Velocity | |||
|---|---|---|---|
| Accuracy | 0.1 km/h (averaged over 4 samples) | ||
| Units | km/h or mph | ||
| Update Rate | 100 Hz | ||
| Maximum Velocity | 1000 mph | ||
| Minimum Velocity | 0.1 km/h | ||
| Resolution | 0.01 km/h | ||
| Latency | 8.5 ms ± 1 or 15.5 ms**** | ||
| Distance | |||
|---|---|---|---|
| Accuracy | 0.05 % (< 50 cm per km) | ||
| Units | metres or feet | ||
| Update rate | 100 Hz | ||
| Resolution | 1 cm | ||
| Absolute Positioning (RMS) | |||
|---|---|---|---|
| Accuracy* (Standalone) | 3m 95% CEP** | ||
| Accuracy* with SBAS DGPS | < 1 m 95% CEP* | ||
| Accuracy* with RTCM DGPS | 80cm 95% CEP** | ||
| Update rate | 100 Hz | ||
| Resolution | 1.8 mm | ||
| Height Accuracy* (Standalone) | 6 m 95% CEP* | ||
| Height Accuracy with DGPS | 2 m 95% CEP* | ||
| Time | |||||||
|---|---|---|---|---|---|---|---|
| Accel/Brake Test (MFD/VBOX Test Suite) | Lap Timing (MFD/VBOX Test Suite) | ||||||
| Resolution | 0.01 s | Resolution | 0.01 s | ||||
| Accuracy | 0.01 s | Accuracy | 0.01 s** | ||||
| Precision | 0.005 s | ||||||
| Acceleration | |||
|---|---|---|---|
| Accuracy | 0.5 % | ||
| Maximum | 20 G | ||
| Resolution | 0.01 G | ||
| Update rate | 100 Hz | ||
| Heading | |||
|---|---|---|---|
| Resolution | 0.01° | ||
| Accuracy | 0.1° | ||
| Memory | |||
|---|---|---|---|
| Compact Flash | Type I | ||
| Recording Time | Dependent on flash card capacity*** | ||
| Brake Stop Accuracy | |||
|---|---|---|---|
| Accuracy | ± 2 cm | ||
Outputs
| CAN Bus | |||
|---|---|---|---|
| Bit rate |
Selectable baud rate:
|
||
| Identifier type | Standard 11 bit 2.0 A | ||
| Data available |
|
||
| Analogue | |||
|---|---|---|---|
| Voltage range |
0 to 5 V DC (Internally protected by a 350 mA thermal fuse.) |
||
|
Default setting |
Velocity |
||
| Accuracy | 0.1 km/h | ||
| Update rate | 100 Hz | ||
| Digital | |||
|---|---|---|---|
| Frequency range | DC to 44.4 kHz | ||
|
Default setting
|
Velocity 90 pulses per metre |
||
| Accuracy | 0.1 km/h | ||
| Update rate | 100 Hz | ||
Inputs
| CAN Bus | |||
|---|---|---|---|
| RACELOGIC modules | Up to 32 channels from any combination of Racelogic modules, such as TC8 and FIM03. | ||
| External CAN Bus |
Up to 16 channels of user-definable CAN signals from external bus, such as Vehicle CAN bus. Can load signal data from an industry standard DBC database file. |
||
| Other channels | Channels that fall outside of the standard channel tab in VBOX Setup, such as AD inputs, IMU KF channels, twin antennas channels and ADAS channels. | ||
| Analogue | |||
|---|---|---|---|
| Number of channels | 4 | ||
| Input range | ± 50 V | ||
| Channel sample order | Synchronous | ||
| Resolution | 24-bit | ||
| DC accuracy | ± 1 mV | ||
| Digital | |||
|---|---|---|---|
| Brake event trigger | 25 ns resolution | ||
| On/Off logging control | Remote log control from hand-held switch | ||
Environmental and Physical |
|||
|---|---|---|---|
| Input Voltage | 7 to 30 V DC | ||
| Power | 5.5 W (maximum) | ||
| Size | 170 mm x 121 mm x 41 mm | ||
| Operating Temperature | – 20° C to + 60° C | ||
| Weight | 900 g (approximate) | ||
| Storage Temperature | – 30° C to + 80° C | ||