Abstract: An earthworking machine having a working tool at the end of an articulated arm is automatically calibrated. The calibration method includes collecting angular position data relating to different articulated components, after a series of movements of the end of the working tool between reference points located in accordance with a given geometrical configuration. These data are derived by imprecisely positioned detectors on each articulated component and then sent to a machine calibration system that executes a calculation module of the calibration system to determine, by use of known input data, unknown parameters which, once determined, control a luminous indicator display which guides the machine operator in the horizontal and/or vertical movements for the depth of the tool.

Abstract: The system is used to determine the position of a tool mounted on a digging machine. It includes a monitoring appliance and several independent position-detecting devices each including a face equipped with attachment elements to be held flush against an articulated component of the machine, a wireless communication module remotely sending data to the monitoring appliance, an independent electrical power supply source, a processing unit, and an electronic module with angular position sensors. The devices are distributed so that each is on a different articulated part of the machine. They need no cables, and are easy to fit. The signals emitted by the devices are received by the monitoring appliance, which calculates a setpoint for positioning the tool.

Abstract: A system for determining the position of a tool mounted on a digging machine includes a monitoring appliance and several independent position-detecting devices each including: an attachment face including attachment elements held flush against an articulated component of the machine, a wireless communication module that sends data to the monitoring appliance, an independent electrical power supply source, a processing unit, an electronic module with angular position sensors. The devices are distributed so that each is on a different articulated part of the machine. The devices need no cables and are easy to fit. Signals emitted by the devices are received by the monitoring appliance, which calculates a set point for positioning the tool. The set point is displayed on a screen for viewing by an operator located in a cab.

Abstract: An earthworking machine having a working tool at the end of an articulated arm is automatically calibrated. The calibration method includes collecting angular position data relating to different articulated components, after a series of movements of the end of the working tool between reference points located in accordance with a given geometrical configuration. These data are derived by imprecisely positioned detectors on each articulated component and then sent to a machine calibration system that executes a calculation module of the calibration system to determine, by use of known input data, unknown parameters which, once determined, control a luminous indicator display which guides the machine operator in the horizontal and/or vertical movements for the depth of the tool.