Mikrofyn A/s

Leica Geosystems Technology A/s

Hexagon Technology Center Gmbh

Anders Lindskov

Lars Kjaergaard

Sean Costello

A system for controlling movement of multiple links of an excavator can move a tool at the end of an excavator arm. The system includes a sensor data interface configured to receive sensor data for determining relative orientations of the multiple links with respect to each other, and a surface setting unit configured to access design data defining a reference surface. The system has a remapping unit configured to remap a user command for moving two links with respect to each other about a corresponding joint to a rotatory tool degree of freedom. The system then coordinates output signals, such that as a function of the remapped user command the tool is rotated within the associated rotatory tool degree of freedom, without the need that an operator coordinates underlying joint movements.

System for remapping a control signal for excavator arm movement to a rotatory degree of freedom of a tool

The result of working with an earth moving machine comprising a bucket may be determined using known dimensions of the bucket combined with determinations of the depth of cutting and the horizontal travel or accumulated length of horizontal travel. The depth of cutting is determined by using the bucket as a receptacle as well as a depth sensor.

Measuring equipment for determining the result of earthmoving work

The complex movements performed by the various components carrying a bucket that performs earth moving work are monitored by means of ultrasound devices relating lengths and angles obtained during a calibration step and instant measurements in a processing unit in order to output either a visual indication of the position of the bucket or signals for automatic control of a digging or other earth-moving operation.

Positioning apparatus for excavating and similar equipment

Earth moving equipment and other heavy machinery for environmentally harsh conditions are controlled by a control panel supplied with a lock, and such panels are frequently removable to prevent theft or unauthorized operation. The interface is in the form of a plug-and-socket, the parts of which have to be sealed against dust and humidity when not interfacing. In order to prevent wear and to assure reliable control, according to the invention, no part of the connection between the control panel and a receptable is galvanic, the power supply for the control panel is wireless, such as inductive or optical, while communications may occur by means of a two-way radio protocol or by optical means.

Control unit for earth moving equipment and the similar

In the use of a backhoe digger an indication of the precise depth of the bucket is required. This may be done by measuring the angles and extensions of the elements of the backhoe and calculating the result. This is commonly done by means of angle resolvers and linear encoders. Retro-fitting and calibration of such equipment is very difficult, and according to the invention the same data may be obtained by means of an inclinometer and length measuring devices based on pulsed ultrasound.

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Ebberup, Denmark

Anders Lindskov