Technical Specification - VBOX 3iS Single Antenna (v1) - Racelogic Support Centre

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VBOX Automotive

VBOX Motorsport

LabSat

VBOX Positioning

General Knowledge Bases

GNSS Specifications

Velocity
Accuracy	0.1 km/h (averaged over 4 samples)
Update rate	100 Hz
Maximum velocity	655 kts (1200 km/h)
Minimum velocity	0.1 km/h
Resolution	0.01 kts (0.0185 km/h)
Latency	20 ms (fixed)

Absolute Positioning
Accuracy	3 m (95 % CEP*)
Accuracy with SBAS DGPS	<1.8 m (95 % CEP*)
Accuracy with RTCM DGNSS Base Station	40 cm (95 % CEP*)
Update rate	100 Hz
Height accuracy	6 m (95% CEP*)
Height accuracy with DGNSS	2 m (95% CEP*)

Distance
Accuracy	0.05% (>50 cm per km)
Update rate	100 Hz
Resolution	0.078 mm

Acceleration
Accuracy	0.5 %
Maximum	20 g
Resolution	0.01 g
Update rate	100 Hz

Heading
Resolution	0.01°
Update rate	100 Hz

Time
Resolution	0.01 s
Accuracy	30 ns

Brake Stop Accuracy (Trigger activated)
Accuracy	±1.8 cm**

Definitions

* Circle of Error Probable (CEP): 95 % of the time the position readings will fall within a circle of the stated diameter

** Based on <50 m brake stop distance

IMU Specifications

	Gyroscopes (Angular rate sensors)	Accelerometers
Dynamic range	±450°/s	±20 g
Nonlinearity	0.01 % of full scale	0.1 % of full scale
Resolution	16 bit ADC (0.014°/s)	16 bit ADC (0.15 mg)
Bandwidth	50 Hz	50 Hz
Noise density	0.01°/s/√Hz	60 μg/√Hz
Bias stability	0.003°/s	15 μg
Bias repeatability (1 year)	0.2°/s	0.005 g

Outputs

CAN Output
Output data rate	125 kbit/s, 250 kbit/s, 500 kbit/s and 1 Mbit/s 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.with IMU enabledResults: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

Digital Output
Signal levels	Low = 0 V, High = 5 V, Max. frequency 4.4 kHz
Output type	Speed, 1 PPS or Lap Beacon

GNSS Antenna Supply
Supply voltage	5 V DC

Inputs

Input Power
Input voltage range	6.5 – 30 V DC
Power	7.5 W (maximum)

Digital Input
Input function	Brake event trigger/ track marker

Environmental and physical

Weight	480 g (approximate)
Size	133.2 mm x 98 mm x 37.5 mm
Operating temperature	-20°C to +70°C
Storage temperature	-40°C to +85°C
IP rating	IP67