VBOX 3i Manuale utente
Automotive VBOX 3i User Guide
•01 - VB3i Introduction
•02 - VB3i GNSS Antenna Placement
•03 - VB3i Front Panel
•04 - VB3i LE Indicators
•05 - VB3i Logging
•06 - VB3i ual Antenna Setup
•07 - VB3i VBOX Setup Overview
•08 - VB3i CAN
•09 - VB3i Analogue and igital I/O
•10 - VB3i ynamic Modes
•11 - VB3i GPS / RTK
•12-1 - VB3i IMU Integration - In-Vehicle Mounted
•How to Mount the IMU
•Kalman Filter Calibration
•VB3i V3-V5 Additional IMU04 Channels
•12-2 - VB3i IMU Integration - Roof Mounted
•13 - VB3i Bluetooth Pairing
•14 - VB3i Voice Tagging
•VB3i Analogue Input PIN OUTS
•VB3i Cable Identification
•VB3i CAN Output
•VB3i EC eclaration of Conformity
•VB3i PIN OUTS
•VB3i Technical Specification
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01 - VB3i Introduction
Configuration
VBOX 3i can be configured using VBOX Manager via a RLCAB005 cable, or can be connected to a computer and
configured using VBOX Setup software. You can connect to a computer via Bluetooth, a RLCAB001 cable to
the 'SER' input and the computer's serial port (USB-serial adapter may be required), or via a RLCAB066-2 cable to one
of the computer's USB ports.
For A AS applications, connection between the VB3i and computer should be made via USB or Bluetooth to ensure
optimum performance.
Power Supply
Included with the VBOX 3i is a cigar lighter power cable, which is the primary source of power input. This is terminated
in a 2-way connector and mates with the 2-way ‘PWR’ socket on the VBOX 3i.
The VBOX 3i can be powered from a wide range of voltage sources. When considering batteries as a power source,
please note that the minimum operating voltage of the VBOX 3i is 7 V. The maximum operating voltage input must not
exceed 30 V C. Failure to observe this could result in damage to the VBOX.
Note - Using an External Power Backup prevents the system shutting down under temporary power loss.
Warning
The VBOX can be connected to other Racelogic input modules including the A C03, A C02, TC8, FIM02/3 and
multifunction display. Please note that the voltage supply to Racelogic modules connected to the VBOX will be at the
same level as the VBOX power input. Therefore, when using any of the Racelogic peripherals with VBOX 3i, the
input voltage must not exceed 15 V. Failure to observe this could result in damage to the module and possibly the
VBOX 3i.
When running the VBOX from a battery pack, the VBOX will sound a warning tone to indicate when the battery voltage
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is reaching the minimum operating voltage level. When this tone is heard, the battery pack requires re-charging or
replacing.
The VBOX 3i has been designed to generate as little heat as possible, and it has a wide operating temperature range.
However, it is good practice to mount the VBOX 3i in a position where it has sufficient airflow around the case.
You must connect the GNSS antenna before connecting power to the VBOX 3i. This is necessary because on power-up
the VBOX 3i will look for a connected GNSS antenna and automatically adjust its gain for optimum performance.
RACELOGIC external modules operate from a 12 V vehicle supply. Therefore, when using external modules, VBOX
supply must not exceed 15 V C.
Hardware Variants
VBOX 3i is available in three variants:
•VB3i: A single antenna version, offering position accuracy of up to 50 cm.
•VB3iD (formerly VB3iSL): A dual antenna version including the same features as VB3i but with the addition of a
second GNSS Antenna, meaning it can also measure slip angle, pitch/roll angle and heading at 100 Hz.
•VB3iDR (formerly VB3iSLR): A dual antenna version with RTK, offering centimetre level position accuracy and
multi-vehicle/ multi-target A AS testing.
Along with an extra antenna socket for dual antenna systems, variants can also be identified using the product
label sticker on the side of the unit.
VB3i label VB3iD label
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VB3iDR label
Inputs/Outputs
VBOX 3i (VB3i)
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VBOX 3i Dual Antenna (VB3iD)
VBOX 3i RTK (VB3iDR)
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Inputs
•100 Hz GPS / GLONASS Engine
VBOX 3i features a powerful GNSS engine capable of providing 100 Hz signal update rate for all GPS/GLONASS
parameters (i.e. velocity, heading and position). Velocity and heading are calculated via oppler Shift in the GNSS
carrier signal, providing you with unparalleled data accuracy.
•GPS/GLONASS Antenna(s)
All standard parameters like time, speed, distance, and position are measured at the primary antenna. The
secondary antenna (dual antenna systems and VBOX 3i V4G only) enables logging of additional channels like slip
angle, pitch or roll angle (depending on antenna orientation).
•Base Station Radio Link (RTK systems only)
Can be used in conjunction with an RTK differential Base Station to obtain centimetre-level positional accuracy.
•2x CAN Bus
Two CAN Bus interfaces are available; a Racelogic CAN bus and a customer VCI bus. The Racelogic CAN bus is
designed to interface with Racelogic external modules, such as TC8, FIM03 and IMU04. The customer VCI bus is
designed to connect third party CAN devices, to log additional VCI CAN data to the VBOX (i.e. vehicle CAN bus,
Steering wheel sensor). Having separate CAN bus connections allows the user to connect to separate CAN data
sources without risk of re-broadcast on to customer VCI source. 64 external CAN channels can be logged by the
VBOX, of which up to 32 CAN channels can be logged from Racelogic modules, up to 16 CAN signals can be
logged on the VCI customer bus and up to 64 CAN channels can be logged from other channels. When logging
data from another source, VBOX Setup software can be used to load signal data from an industry standard CAN
database file (. BC).
•Brake Trigger
By using a physical pressure switch on the brake pedal, a precise 'start of braking event' can be captured. The
brake/event trigger input is oversampled to 25 ns for high distance accuracy.
•Log Switch
A start/stop logging switch allows users to manually choose when they wish to record data.
•4x Analogue Inputs
Each of the four analogue input channels has a dedicated analogue converter. ata is recorded from each channel
simultaneously to avoid latency between analogue channel data. The name, scale and offset of each analogue
input channel can be adjusted using VBOX Setup software to allow sensor calibration and therefore logging of data
in standard SI units. The analogue input connector also provides two power outputs that may be used for driving
sensors. These are in the form of a 5 V C supply and an output equal to the VBOX power supply voltage. If the
VBOX is set to 100 Hz log rate, then the additional option of 500 Hz analogue data sampling will be present and
available.
•Voice Tagging
VBOX 3i can record a GNSS synchronised WAV audio tag of up to 30 seconds long, captured to a time accuracy of
0.5 sec. The recorded WAV file is then logged to the CF card.
•Power Supply
VBOX 3i can accept a supply voltage between 7 – 30 V C. Low current consumption results in extended battery
life.
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Outputs
•CAN Bus
The VCI customer CAN bus can be utilised to output standard VBOX data parameters, plus up to 12 additional data
channels from connected external source or internal modules (i.e. A AS, dual antenna).
The baud rate and CAN I 's for these outputs are user configurable.
•RS232
The RS232 connector is used for VBOX configuration and output of real-time GNSS data. Provides the facility to
connect to a radio telemetry system to offer PC monitoring of test data.
•USB
VBOX 3i USB connector can be used for VBOX configuration and to output real-time data at 100 Hz to a PC.
•Bluetooth
VBOX 3i comes equipped with an internal Bluetooth Radio, allowing remote configuration and remote output of real-
time GNSS data to any Bluetooth capable PC or ata logger. The Bluetooth connection is capable of sending data
at the full 100 Hz rate.
•2x Digital Outputs
The first digital output is assigned to 'Speed/ istance' with adjustable 'Pulses per Meter' setting, while the second
output is a level switch output enabling users to select any one of the logged channels and assign it a threshold
value, e.g. output high (5 V) when speed greater than 20 kmh.
•2x Analogue Outputs
Both 16 bit analogue outputs can be configured to output any data channel being logged by the VBOX for use by
additional data logging equipment. The voltage output range is from 0 to 5 V C, with a resolution of 76 μV per bit.
•CF Card
ata is logged in a space-delimited text format. Recording time dependent on flash card capacity, log frequency,
number of channels and logging conditions. Approximately 29 MB per hour used when logging GNSS data at 100
Hz; approx. 182 MB per hour total logging capacity.
Note: Large VBO files may cause issues when loading into VBOX Test Suite, depending on PC specification. The
higher the set recording frequency, the larger the logged data file will be.
Technical specifications vary for each VBOX 3i version. Please see the datasheets for detailed information.
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02 - VB3i GNSS Antenna Placement
Single Antenna Systems
The GNSS antenna supplied with the VBOX is a 5 V active antenna. For the best possible signal quality, it is important
to maintain a clean connection between the antenna and the VBOX. Before fixing the antenna to the VBOX, ensure that
there are no dust particles in either connector. Replacement antennae are available by contacting your VBOX
distributor.
The antenna is a magnetic mounting type for quick and simple mounting to the vehicle roof. For optimum GNSS signal
reception, make sure that the antenna is fitted to the highest point of the vehicle away from any obstructions that may
block satellite reception. The GNSS antenna works best with a metal ground plane underneath (a metallic vehicle roof is
perfect for this)
Please also note that when using any GNSS equipment, a clear sky view is important. Objects in the surrounding area
such as tall buildings or trees can block the GNSS signal causing a reduction in the number of satellites being tracked,
or introducing reflected signals that can decrease the accuracy of the system. Note that clouds and other atmospheric
conditions do not affect the VBOX’s performance.
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GNSS antennas require a ground plane to operate correctly. This helps to reduce unwanted reflections of the GNSS
signal caused by nearby objects, and usually the metal roof of a vehicle performs this function. However, if a test
requires an antenna to be placed either off the vehicle, or on a vehicle that does not have a metallic roof, a special
ground plane antenna must be used. This has an internal ground plane and can operate perfectly without the need for
mounting on a metal surface. Ground plane antennas are available from your VBOX distributor.
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ual Antenna Systems
For further info on slip/pitch and slip/roll setups, click here.
When testing using dual antenna mode, the greater the antenna separation, the greater the accuracy of the dual
antenna derived data channels.
Slip Angle Accuracy Pitch/Roll Angle Accuracy
<0.2° rms at 0.5 m antenna separation
<0.1° rms at 1.0 m antenna separation
<0.067° rms at 1.5 m antenna separation
<0.05° rms at 2.0 m antenna separation
<0.04° rms at 2.5 m antenna separation
<0.14° rms at 0.5 m antenna separation
<0.07° rms at 1.0 m antenna separation
<0.047° rms at 1.5 m antenna separation
<0.035° rms at 2.0 m antenna separation
<0.028° rms at 2.5 m antenna separation
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