VBOX Speed Sensors

HomeVBOX Speed Sensors

OVERVIEW

With 5Hz, 10Hz, 20Hz and 100Hz GPS update rate options available, the speed sensor range suits a variety of budgets and requirements.

Units from 10Hz update rate are also compatible with the DGPS Base Station for increased positional accuracy.

If you need to measure speed, position or acceleration, but have no need for internal logging, then the VBOX GPS Speed Sensor range is ideal.

VBOX Speed Sensors are smaller, cheaper and more rugged than the equivalent VBOX range of data loggers, with the same accuracy and quality of signal.

They are designed to integrate directly with your own logging equipment via a CAN or serial interface.

All units are housed in the same small, water resistant package with connections made via a Deutsch motorsport style connector.

FEATURES

The VBOX Speed Sensor Single Antenna has a host of features which makes it a very powerful and flexible item of vehicle testing equipment.

  • High performance GPS receivers
  • CAN Bus output position, velocity, distance, time, heading, height, vertical
    velocity, longitudinal & lateral acceleration, trigger to zero distance, trigger time, trigger speed, radius of turn
  • RS232 Serial Output of NMEA, position velocity and time (except 5Hz unit)
  • User configurable analogue + digital outputs
  • Virtual Lap Beacon Output
  • Compatible with DGPS Base Station (except 5Hz unit)
  • Rugged Deutsch ASDD Autosport connector
  • High quality aluminium enclosure
  • IP66 rated: water + dustproof
  • Wide 6.5V – 30V operating range

APPLICATIONS

With a length of only 9-14cm the unit is easy to mount and transport, making the Speed Sensor perfect for automotive testing, motorsport, marine, and telematics.

  • Brake Testing – Using a brake pedal mounted trigger input, the 100Hz Speed Sensor will measure braking distance to within ±1.8cm.
  • Performance Testing – VBOX Speed Sensors are perfect for all variations of performance testing, the accuracy and quick response of the 100Hz unit gives very repeatable and accurate results.
  • Acceleration Testing

INPUTS / OUTPUTS

 

INPUTS

GPS Antenna
3V Active Antenna (inc) / 5V for 100Hz version.

OUTPUTS

  • CAN Bus
    Output Data Rate: 125Kbit, 250Kbit, 500Kbit & 1Mbit selectable baud rate. Software controlled CAN termination
  • RS232
    NMEA and Racelogic Serial data dependant on unit type
  • Analogue Output
    Either speed, lateral acceleration, longitudinal acceleration, or lap beacon output at 0 to 5v DC
  • Digital Output
    Speed or lap beacon
    Output Data Rate: Low = 0v, High = 5v
    Max frequency 4.4Khz

PARAMETERS

VBOX Speed Sensor Single Antenna measures the following parameters at 5, 10, 20 or 100 samples per second:

  • Time
  • Position
  • Velocity
  • Vertical velocity
  • Longitudinal velocity
  • Lateral velocity
  • Heading
  • True heading
  • Height
  • Radius of turn
  • Lateral acceleration
  • Longitudinal acceleration

SPECS

The specifications below refer to all four VBOX Speed Sensor versions. Whenever values differ from unit to unit, they will be stated from smallest to highest update rate: RLVBSS05| RLVBSS10| RLVBSS20| RLVBSS100.

ABSOLUTE POSITIONING

  • Accuracy: 3m *
  • Accuracy with SBAS DGPS
    Europe (EGNOS): <1| <1| <1| <1m*
    USA (WAAS): <1.8| <1.8| <1.8| <1.8m*
    Asia (MSAS): <1.8| <1.8| <1.8| <1.8m*
  • Accuracy with RTCM DGPS:
    N/A| 40| 40| 80cm*
  • Accuracy with Base Station DGPS and GPS upgrade (RLVBUP30): N/A| 20| 20| N/Acm*
  • Update rate: 5| 10| 20| 100Hz
  • Resolution: 1.8cm
  • Height accuracy: 10| 6| 6| 6m *
  • Height accuracy with DGPS: N/A| 2| 2| 2m *

VELOCITY

  • Accuracy: 0.1Km/h
    (averaged over 4 samples)
  • Units: Km/h or Mph
  • Update rate: 5| 10| 20| 100Hz
  • Maximum velocity: 1000 Mph
  • Minimum velocity: 0.1 Km/h
  • Resolution: 0.01 Km/h
  • Latency: >160| 41.5| 41.5| 8.5 ±1.5 mS

DISTANCE

  • Accuracy: 0.05 % (<50cm per Km)
  • Units: Metres / Feet
  • Update rate: 5| 10| 20| 100Hz
  • Resolution: 1cm

ACCELERATION

  • Accuracy: 1.00| 0.50| 0.50| 0.50%
  • Maximum: 4| 20| 20| 20G
  • Resolution: 0.01G
  • Update rate: 5| 10| 20| 100Hz

LAP TIMING (OLED DISPLAY)

  • Resolution: 0.01s
  • Accuracy: 0.01s**

TIME ACCEL/BRAKE TEST (MF DISPLAY)

  • Resolution: 0.01°
  • Accuracy: 0.2| 0.05| 0.05| 0.01s

BRAKE STOP ACCURACY (TRIGGER ACTIVATED)

  • Accuracy: N/A| ±20| ±10| ±1.8cm***

HEADING

  • Resolution: 0.01°
  • Accuracy: 0.1°

ENVIRONMENTAL AND PHYSICAL

  • Weight: Approx. 190| 250| 250| 250g
  • Size: 90 x 65 x 31.85mm
  • Size (100Hz unit):140 x 92 x 31.85mm
  • Operating temperature: -30˚C to +70˚C
  • Storage temperature: -40°C to +85°C

POWER

  • Input Voltage Range:
    1st Gen = 6.5v–30v DC
    2nd Gen = 7v–30v DC
  • Power: 3.7w Max

DEFINITIONS

* 95% Circle of Error Probable (CEP) = 95% of the time the position readings will fall within a circle of the stated radius. 2cm accuracy requires an RTK option and RTK enabled Base Station.
** Not using DGPS and crossing the start/finish line at 100km/h.
*** Based on <50m brake stop distance.

Download or print datasheet here.

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