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SPEEDBOX / Specifications

SPEEDBOX Specification

SPEEDBOX Accuracy Specification

 

SPEEDBOX

Options
IMU RTK IMU/ RTK INS Tactical
Typical Position Accuracy1 3m 3m 3m 3m 2m
Optimum Position Accuracy1 1m 1m 1m 1m 1m
Typical Acceleration Accuracy 0.1 m/s2 0.05m/s2 0.1 m/s2 0.05m/s2 0.01 m/s2
Typical Speed Accuracy 0.02m/s 0.015 m/s 0.02 m/s 0.015 m/s 0.015 m/s
Distance Accuracy2 3cm in

40m

3cm in

40m

3cm in

40m

3cm in

40m

3cm in

40m

Typical Gyro Accuracy n/a 0.1o/S n/a 0.1o/s 0.01o/s
Yaw Accuracy3 n /a n /a 0.2o 0.2o 0.08o
Roll / Pitch Accuracy3 n /a n /a 0.6o 0.6o 0.04o
Gradient Accuracy4 0.015o 0.015o 0.015o 0.015o 0.015o
Heading Accuracy4 0.01o 0.01o 0.01o 0.01o 0.01o

Notes:

  1. 50% CEP.
  2. Straight-line testing through laser traps, including harsh acceleration and braking.
  3. Unfiltered 200Hz output during dynamic manouvering with good GPS lock.
  4. Assumes good GPS lock, 20Hz measurements filtered over a 2s window.


SPEEDBOX General Specification

 

SPEEDBOX

Options
IMU RTK IMU/ RTK INS Tactical
Output Rates:
Speed 200Hz 200Hz 200Hz 200Hz 200Hz
Acceleration 200Hz 200Hz 200Hz 200Hz 200Hz
Position 20Hz 20Hz 20Hz 20Hz 200Hz
Gyro Rates n/a 200Hz n/a 200Hz 200Hz
Yaw/Pitch/Roll n/a n/a 20Hz1 20Hz1 200Hz
Heading/Gradient 20Hz 20Hz 20Hz 20Hz 200Hz
GPS Receiver Race Technology PurePhase, 20Hz output rate
Accelerometer:
Range ±2g2 ±18g ±2g2 ±18g ±5g
Resolution3 1mg 3.33mg 1mg 3.33mg 1.3e- 5mg
3dB Bandwidth 40Hz 33Hz 40Hz 33Hz 100Hz
Gyro:
Range n/a ±300o/s n/a ±300o/S ±300o/s
3dB Bandwidth 40Hz 33Hz 40Hz 33Hz 100Hz
Pulse Output, Either:
Speed Pulse 0-5V, 10-100uS high time or 50% duty cycle, 1-400 pulses per meter. 12ms latency (SPEEDBOX INS)

Frequency range DC- 50kHz

Time Pulse 0-5V, 1Hz @ 50% duty cycle, rising edge synchronised to GPS & UTC time, accuracy better than 200ns.
Analog Output Up to 4, -5 to 5V @ 50ohm load, -10 to 10V @ infinite impedence
Analog Input Up to 4, 0-20V single ended, 16bit resolution
Trigger Input ±20µs timing accuracy, Input levels. Low<0.5v, High>2.1v, biased to 2.5v
Latency4 CAN 30 or 150ms, pulse 12ms (INS), ADC <4ms
Power Requirement:
Voltage 9-30V (9 - 15V for SPEEDBOX- MINI)
Power Consumption 2.7W 3W 3W 3.4W 4.7W
Weight5 800g
Dimensions5

199mm x 135mm x 43mm

160mm x 111 mm x 27mm (SPEEDBOX- MINI)

Antenna 3.3v, active

Notes:

  1. Either roll or pitch is available for the RTK option, not both simultaneously.
  2. A 6g factory option is available (resolution 2.94mg).
  3. This is the measurement resolution of the sensor, available internally to the SPEEDBOX for calculations. Depending on the output message chosen, the full resolution may not be available in the output.
  4. Latency of the speed output, or all INS system outputs, compared to their timestamp, or when output using DAC.
  5. Weight and dimensions are for the base unit only excluding protruding connectors, and excluding any antennas. Please refer to the detailed drawings for further clarification.
Page last modified on January 06, 2017, at 02:27 PM