DEVICE TO DETERMINE POSITION OF ROAD BUILDING MACHINE WORK TOOL BY SATELLITE SYSTEMS OF NAVIGATION GPS/GLONASS OR LIGHT, FOR INSTANCE, LASER RADIATORS Russian patent published in 2012 - IPC E02F9/08 G05D3/00 

FIELD: construction.

SUBSTANCE: device comprises an antenna of GPS/Glonass systems or a photodetector installed on a vertical rod fixed on a work tool with the help of a bracket with a biaxial hinged joint. Hinged joint axes are equipped with units of rotation with sensors of turn angle and units of braking with electromagnets. A counterweight is fixed in the lower part of the rod. As position of the road building machine or work tool changes relative to the horizon, the rod under action of the counterweight is turned on axes of the biaxial hinged joint and preserves its vertical position. The device is equipped with a system unit supplying control pulses to electromagnets of braking units. The system unit may receive data from sensors of turn angle, has a differentiating link in its composition, a relay link with an area of insensitivity, a unit of pulses generation and an amplification link.

EFFECT: reduced additional error of measurement, higher accuracy of works carried out with a road-building machine.

2 cl, 7 dwg