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.

 

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 (RS-232) interface.

Download AccoSat Data sheet and further details on request.

AccoSat DGPS Datasheet

AccoSat Data sheet and further details on request.

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