Speed sensor AccoSat

Product Overview

True ground speed for Off-Highway Vehicles

Speed sensor AccoSat

The MSO AccoSat is a speed sensor based on DGPS and a 3D accelerometer. By means of this sensor fusion the system reacts rapidly on acceleration (start and stop). This is especially advantageous for monitoring, control and closed-loop control on off-highway and agricultural machinery.

The AccoSat system measures the forward speed by means of a triaxial accelerometer and a DGPS receiver. AccoSat deploys a DGPS receiver optimized for speed measurement. The speed measurement - in contrary to detection on gearbox or wheel - is unaffected by effective tyre circumference, sinking-in and wheel slip. This is particulary advantegous for all applications needing an accurate speed signal for example for product application proportional to distance / area e.g. seeding, spraying and spreading. The AccoSat System does achieve high accuracy, dynamics and reliability of the speed measurement by means of a sensor fusion of a 3D accelerometer with a DGPS receiver.The AccoSat provides for real time true ground speed for “outdoor / off - highway” applications for monitoring, control and closed loop control of machinery functions. Optionally DGPS positioning data (NMEA-0182) are output over a serial (RS232) Interface.

Potted AccoSat

The AccoSat System does achieve high accuracy, dynamics and reliability of the speed measurement by means of a sensor fusion of a 3D accelerometer with a DGPS receiver.The AccoSat provides for real time true ground speed for “outdoor / off - highway” applications for monitoring, control and closed loop control of machinery functions. Optionally DGPS positioning data (NMEA-0182) are output over a serial (RS232) interface.

Benefits/Use

Benefits/Use

  • Exact measurement of speed over ground and distance covered independent on wheel slip, effective tyre circumference and sinking in of the tyre
  • No calibration required
  • High dynamics and update rate for monitoring of wheel slip, control and closed-loop control of application output
  • Easy installation on a vehicle, possibly under plastic cover
  • Unsusceptible to varying ground properties
  • Standard pulse output proportional to speed according to DIN 9684 / ISO 11786, "Radar - compatible"
  • Exact monitoring, control and closed-loop control of application rate proportional to forward speed / area covered
  • Option: DGPS positioning (WAAS / Egnos diff. correction) with NMEA 0183 output for e.g. documentation, telematics

Technical Data

Technical data

Power supply +10 VDC to +16 VDC
Current consumption 400 mA max
Operating temperature -20 °C to +70 °C
Output signal 130 pulses / m (36,1 Hz km-1 h-1) acc. DIN 9684 / ISO 11786
Output signal update rate 25 Hz update rate
System accuracy better than 0,1 m/s
Dimensions - less cable, with flaps 58,84 mm wide, 64 (94) mm long, 35 mm high
Vehicle installation on the vehicle horizontally like the direction (arrow) shows

Download AccoSat Data sheet and further details on request.