Patent ID: 7681660

Claim:
A method for positioning a drilling unit of a rock drilling rig, the rock drilling rig comprising: at least one drilling boom; a drilling unit arranged in the drilling boom; at least one sensor for determining the location and direction of the drilling unit; at least one control unit provided with a drilling plan; and at least one control element for manually controlling the location of the drilling unit, and the method comprising: determining the location of the drilling unit, positioning the drilling unit at a starting point of a drill hole determined in the drilling plan, aligning the drilling unit in a drilling direction determined in the drilling plan, drilling a drill hole according to the drilling plan, performing a manual displacement of the drilling unit towards one hole of the drilling plan in order to select by the manual displacement a next hole to be drilled, detecting in the control unit the selected next hole to be drilled, and performing sequentially after the hole selection and detection an automatic positioning, where the drilling unit is moved under the control of the control unit to the location of a starting point of the selected next drill hole in order to initiate drilling.