Products
VBOX 3iSDR (Dual Antenna RTK INS)
VBOX 3iSDR
●GNSS-aided Inertial Navigation System (INS) with integrated IMU and CAN bus wheel speed input
●Built-in RTK and dual antenna – position accuracy of 5 mm horizontal / 10 mm vertical (RMS) with RTK
●Dual antenna for slip angle measurement at 5 locations
●Motion Pack for driving robots and Guided Soft Targets (GST)
●100 Hz multi-frequency, multi-constellation GNSS receiver (GPS/GLONASS)
●Ideal for multi-vehicle, multi-target ADAS testing
●Connects to your existing control system or data logger via RS232, CAN bus or Ethernet
Overview
VBOX 3iSDR builds on VBOX 3iS by adding dual antennas and RTK (Real-Time Kinematic), making it ideal for ADAS testing, sensor validation and high-accuracy vehicle dynamics testing.
Its multi-frequency, multi-constellation GNSS receiver works together with an internal high-grade IMU, which smoothly fills short gaps in satellite reception such as under trees or bridges. During longer outages, such as in tunnels or urban canyons, wheel speed data from the vehicle's CAN bus is used to significantly reduce drift.
VBOX 3iSDR vs. VBOX 3iS
●Built-in RTK
The standard VBOX 3iS cannot accept RTK corrections. VBOX 3iSDR accepts DGPS/RTK corrections directly and achieves 5 mm horizontal / 10 mm vertical (RMS) position accuracy when used with a base station or NTRIP modem.
●Dual antenna for slip angle measurement
VBOX 3iS uses a single antenna. With dual antennas, VBOX 3iSDR measures slip angle at 5 locations on the vehicle, with accuracy down to <0.04° (RMS) at 2.5 m antenna separation.
Left: VBOX 3iS (single antenna connector) / Right: VBOX 3iSDR (dual antenna connectors A and B)
●Motion Pack for driving robots
Combining RTK accuracy with the IMU, VBOX 3iSDR provides the speed, position and attitude data required to control driving robots and Guided Soft Targets (GST).
●More included in the box
In addition to the standard VBOX 3iS contents, VBOX 3iSDR comes with a GPS/GLONASS L1/L2 antenna and a VBOX Manager display.
Key Benefits
●Keep testing in tunnels and urban areas
Combining wheel speed, GNSS and inertial data significantly improves speed and position accuracy where satellite reception is poor.
●No external wheel speed sensors needed
Uses existing wheel speed data from the vehicle's CAN bus to reduce drift, saving the cost and installation time of external sensors.
●Cost-effective multi-target ADAS testing
In multi-target testing such as swarm testing, every target vehicle needs an accurate data source but not its own data logging – exactly what VBOX 3iSDR provides.
●Integrates with your existing system
Outputs via RS232, CAN bus or Ethernet (100 Hz) to your existing control system or data logger.
●Compatible with most major steering robot manufacturers
Highly accurate and repeatable path following for autonomous vehicle testing.
●RTK without your own base station
With the VBOX NTRIP Modem, VBOX 3iSDR can receive correction data via Network RTK without a VBOX Base Station.
●Even better slip angle accuracy
The antenna mounting pole (RLACS171) extends antenna separation up to 2.5 m for slip angle and other dynamic testing.
●UKAS calibration certificate included
Every unit ships with a UKAS accredited calibration certificate.
●Free lifetime support
Comprehensive support and software updates at no extra cost for the entire lifetime of the product.
Applications
ADAS testing: Adaptive Cruise Control, Autonomous Emergency Braking, Lane Departure Warning, Park Assist
Autonomous vehicle testing: highly accurate and repeatable path following
Handling & dynamics: suspension, chassis and brake testing
Multi-target ADAS testing (e.g. swarm testing)
GNSS Specifications
Velocity
●Accuracy: 0.1 km/h (averaged over 4 samples)
●Update rate: 100 Hz
●Maximum velocity: 1200 km/h
●Minimum velocity: 0.1 km/h
●Resolution: 0.01 km/h
●Latency: 20 ms (fixed)
Absolute Positioning (RMS)*
●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.
Acceleration
●Accuracy: 0.50%
●Maximum: 20 g
●Resolution: 0.01 g
●Update rate: 100 Hz
Distance
●Accuracy: 0.05% (<50 cm per km)
●Update rate: 100 Hz
●Resolution: 1 cm
Heading
●Accuracy: 0.1°
●Resolution: 0.01°
Brake Distance
●Accuracy (trigger activated): ±1.8 cm
Time
●Resolution: 0.01 s
Slip Angle Accuracy (dual antenna, RMS)
●0.5 m antenna separation: <0.2°
●1.0 m antenna separation: <0.1°
●1.5 m antenna separation: <0.067°
●2.0 m antenna separation: <0.05°
●2.5 m antenna separation: <0.04°
IMU Specifications
Gyroscopes
●Dynamic range: ±450°/s
●Nonlinearity: 0.01% of full scale
●Effective resolution: 20 bits (0.00085°/s)
●Bandwidth: 50 Hz
●Noise density: 0.01°/s/√Hz
●Bias stability: 0.0028°/s
Accelerometers
●Dynamic range: ±20 g
●Nonlinearity: 0.1% of full scale
●Effective resolution: 20 bits
●Bandwidth: 50 Hz
Roll and Pitch Angle Accuracy (IMU, RMS)
●Pitch angle: 0.06°
●Roll angle: 0.06°
Inputs / Outputs
●Input voltage: 7.5–30 V DC, power consumption 7.5 W max
●Digital input: brake event trigger / track marker
●CAN input: wheel speed
●RS232 input: DGPS/RTK corrections, configuration, external IMU
●CAN bus output: 125 kbit/s, 250 kbit/s, 500 kbit/s & 1 Mbit/s selectable
●RS232 output: up to 100 Hz
●Ethernet output: 100 Hz
Physical
●IP rating: IP67
●Weight: approx. 480 g
●Size: 139.21 x 78.5 x 38 mm
Package Contents
●VBOX 3iSDR unit
●GPS/GLONASS L1 antenna with 4 m SMA cable
●GPS/GLONASS L1/L2 antenna with 4 m SMA cable
●Serial configuration cable (2 m)
●Deutsch 23W to multiple connectors interface cable
●VBOX Manager display
●VBOX module power/CAN cable (2 m)
●Carry case
●UKAS accredited calibration certificate
VBOX 3iSDR builds on VBOX 3iS by adding dual antennas and RTK (Real-Time Kinematic), making it ideal for ADAS testing, sensor validation and high-accuracy vehicle dynamics testing.
Its multi-frequency, multi-constellation GNSS receiver works together with an internal high-grade IMU, which smoothly fills short gaps in satellite reception such as under trees or bridges. During longer outages, such as in tunnels or urban canyons, wheel speed data from the vehicle's CAN bus is used to significantly reduce drift.
VBOX 3iSDR vs. VBOX 3iS
●Built-in RTK
The standard VBOX 3iS cannot accept RTK corrections. VBOX 3iSDR accepts DGPS/RTK corrections directly and achieves 5 mm horizontal / 10 mm vertical (RMS) position accuracy when used with a base station or NTRIP modem.
●Dual antenna for slip angle measurement
VBOX 3iS uses a single antenna. With dual antennas, VBOX 3iSDR measures slip angle at 5 locations on the vehicle, with accuracy down to <0.04° (RMS) at 2.5 m antenna separation.
Left: VBOX 3iS (single antenna connector) / Right: VBOX 3iSDR (dual antenna connectors A and B)
●Motion Pack for driving robots
Combining RTK accuracy with the IMU, VBOX 3iSDR provides the speed, position and attitude data required to control driving robots and Guided Soft Targets (GST).
●More included in the box
In addition to the standard VBOX 3iS contents, VBOX 3iSDR comes with a GPS/GLONASS L1/L2 antenna and a VBOX Manager display.
Key Benefits
●Keep testing in tunnels and urban areas
Combining wheel speed, GNSS and inertial data significantly improves speed and position accuracy where satellite reception is poor.
●No external wheel speed sensors needed
Uses existing wheel speed data from the vehicle's CAN bus to reduce drift, saving the cost and installation time of external sensors.
●Cost-effective multi-target ADAS testing
In multi-target testing such as swarm testing, every target vehicle needs an accurate data source but not its own data logging – exactly what VBOX 3iSDR provides.
●Integrates with your existing system
Outputs via RS232, CAN bus or Ethernet (100 Hz) to your existing control system or data logger.
●Compatible with most major steering robot manufacturers
Highly accurate and repeatable path following for autonomous vehicle testing.
●RTK without your own base station
With the VBOX NTRIP Modem, VBOX 3iSDR can receive correction data via Network RTK without a VBOX Base Station.
●Even better slip angle accuracy
The antenna mounting pole (RLACS171) extends antenna separation up to 2.5 m for slip angle and other dynamic testing.
●UKAS calibration certificate included
Every unit ships with a UKAS accredited calibration certificate.
●Free lifetime support
Comprehensive support and software updates at no extra cost for the entire lifetime of the product.
Applications
ADAS testing: Adaptive Cruise Control, Autonomous Emergency Braking, Lane Departure Warning, Park Assist
Autonomous vehicle testing: highly accurate and repeatable path following
Handling & dynamics: suspension, chassis and brake testing
Multi-target ADAS testing (e.g. swarm testing)
GNSS Specifications
Velocity
●Accuracy: 0.1 km/h (averaged over 4 samples)
●Update rate: 100 Hz
●Maximum velocity: 1200 km/h
●Minimum velocity: 0.1 km/h
●Resolution: 0.01 km/h
●Latency: 20 ms (fixed)
Absolute Positioning (RMS)*
●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.
Acceleration
●Accuracy: 0.50%
●Maximum: 20 g
●Resolution: 0.01 g
●Update rate: 100 Hz
Distance
●Accuracy: 0.05% (<50 cm per km)
●Update rate: 100 Hz
●Resolution: 1 cm
Heading
●Accuracy: 0.1°
●Resolution: 0.01°
Brake Distance
●Accuracy (trigger activated): ±1.8 cm
Time
●Resolution: 0.01 s
Slip Angle Accuracy (dual antenna, RMS)
●0.5 m antenna separation: <0.2°
●1.0 m antenna separation: <0.1°
●1.5 m antenna separation: <0.067°
●2.0 m antenna separation: <0.05°
●2.5 m antenna separation: <0.04°
IMU Specifications
Gyroscopes
●Dynamic range: ±450°/s
●Nonlinearity: 0.01% of full scale
●Effective resolution: 20 bits (0.00085°/s)
●Bandwidth: 50 Hz
●Noise density: 0.01°/s/√Hz
●Bias stability: 0.0028°/s
Accelerometers
●Dynamic range: ±20 g
●Nonlinearity: 0.1% of full scale
●Effective resolution: 20 bits
●Bandwidth: 50 Hz
Roll and Pitch Angle Accuracy (IMU, RMS)
●Pitch angle: 0.06°
●Roll angle: 0.06°
Inputs / Outputs
●Input voltage: 7.5–30 V DC, power consumption 7.5 W max
●Digital input: brake event trigger / track marker
●CAN input: wheel speed
●RS232 input: DGPS/RTK corrections, configuration, external IMU
●CAN bus output: 125 kbit/s, 250 kbit/s, 500 kbit/s & 1 Mbit/s selectable
●RS232 output: up to 100 Hz
●Ethernet output: 100 Hz
Physical
●IP rating: IP67
●Weight: approx. 480 g
●Size: 139.21 x 78.5 x 38 mm
Package Contents
●VBOX 3iSDR unit
●GPS/GLONASS L1 antenna with 4 m SMA cable
●GPS/GLONASS L1/L2 antenna with 4 m SMA cable
●Serial configuration cable (2 m)
●Deutsch 23W to multiple connectors interface cable
●VBOX Manager display
●VBOX module power/CAN cable (2 m)
●Carry case
●UKAS accredited calibration certificate