Computer-controlled mobile crane

A computer-controlled mobile crane, comprising:

• a column, with a terminal portion which is faced towards the ground and rotates around a vertical geometric axis by a rotational hydraulic driving apparatus;
• the column mounted on a platform mountable on a motor vehicle;
• wherein the crane is furnished with supports for maintaining the motor vehicle in a secure position during its operation as well as for preventing the crane and also the motor vehicle from being overturned;
• wherein the supports comprise at least two protruding telescopic beams with each of them on its free terminal portion equipped with an approximately vertical telescopic supporting leg which is via hydraulic conduits connected with a control unit of a hydraulic unit of the crane and is movable towards the ground, by which each beam can also be placed in a desired position;
• a primary arm pivotally attached to said column at a terminal end faced away from the ground;
• a secondary arm pivotally attached to said primary arm at the end of the primary arm opposite that of the column;
• an attachment point suitable for attachment of a gripping assembly on a terminal portion of the secondary arm opposite that of the primary arm;
• wherein the primary arm is capable of movement via a first hydraulic cylinder, which is attached to the column and to the primary arm, which is connected via first hydraulic conduits to the control unit of the hydraulic unit of the crane;
• wherein the secondary arm is capable of movement via a second hydraulic cylinder, which is attached to the primary arm and the secondary arm, which is connected via second hydraulic conduits to the control unit of the hydraulic unit of the crane;
• wherein movement of the column, the primary arm, the secondary arm, or the gripping assembly are enabled by the control unit of the hydraulic unit of the crane;
• a computer control unit connected to the control unit of the hydraulic unit of the crane;
• an optical measuring unit connected to the computer control unit capable of optically recognizing a point as marked by a light beam on a surface;
• wherein the computer control unit is capable of generating a coordinate system in which the crane is located;
• wherein the optical measuring unit is capable of determining of a distance between the optical measuring unit and one or more marked reference points within the coordinate system so that on the basis of a measured distance between the optical measuring unit and the one or more marked reference points the coordinates of the one or more marked reference points are mathematically determined;
• a column sensor electrically connected to the computer control unit capable of determining a rotational position of the column within the coordinate system;
• a primary arm sensor electrically connected to the computer control unit capable of determining a position of the primary arm within the coordinate system;
• a secondary arm sensor electrically connected to the computer control unit capable of determining a position of the secondary arm within the coordinate system;
• wherein the computer control unit comprises a software stored on an electronic storage medium which is capable to operate the crane and transfer a load within the coordinate system within which the crane is located by transferring the load from an initial point (T1) to an end point (T2);
• wherein the optical measuring unit defines the initial point (T1) where the load is located and the computer control unit calculates coordinates of the initial point (T1) within the coordinate system (x, y z) based on the defining by the optical measuring unit;
• wherein the optical measuring unit defines the end point (T2) where the load is to be transferred and the computer control unit calculates coordinates of the end point (T2) within the coordinate system (x, y z) based on the defining by the optical measuring unit;
• wherein the optical measuring unit defines at least one intermediate point (T0) on an obstacle to be avoided and the computer control unit is capable of calculating the coordinates of the at least one intermediate point (T0) based on the defining by the optical measuring unit;
• wherein the computer control unit determines the position of the column, primary arm, secondary arm, attachment point, and the gripping assembly within the coordinate system using the column sensor, primary arm sensor, and secondary arm sensor;
• wherein, based on the of the initial point (T1) and the calculated at least one intermediate point (T0), the computer control unit calculates the necessary operation of the crane within the coordinate system to move the gripping assembly from a starting position towards the initial point (T1) and pick up the load, wherein the computer control unit is capable of moving the gripping assembly to avoid the at least one intermediate point (T0) on the obstacle located between the starting position and the initial point (T1);
• wherein, based on the calculated initial point (T1), the calculated end point (T2), and the calculated at least one intermediate point (T0), the computer control unit calculates the necessary operation of the crane within the coordinate system to move the gripping assembly and the load from the initial point (T1) towards the end point (T2) and release the load, wherein the computer control unit is capable of moving the gripping assembly and the load to avoid the at least one intermediate point (T0) on the obstacle located between the initial point (T1) and the end point (T2);
• wherein the computer control unit displays information related to the calculations required to move the load between the starting position, the initial point (T1), and the end point (T2) to a user;
• wherein upon receiving a command from the user, the computer control unit operates the crane within the coordinate system to move the gripping assembly from a starting position towards the initial point (T1), pick up the load and move the gripping assembly and the load from the initial point (T1) towards the end point (T2) and release the load, wherein the computer control unit is capable of moving the gripping assembly and the load to avoid the at least one intermediate point (T0) on the obstacle located between the starting position and the initial point (T1), or between the initial point (T1), and the end point (T2);
• wherein upon releasing the load, the computer control unit displays information related to the completed movement of the load between the initial point (T1), and the end point (T2) to the user.