Abstract: A system for forming a controlled safety area for a manipulator which system comprises a control unit being arranged to monitor the controlled safety area in order to prevent human entering to the controlled safety area to be hit by the manipulator working within the controlled safety area. The system according to the invention comprises at least one laser scanner being arranged to form at least one laser scanning wall such that the controlled safety area is divided in to a high grade safety area in between the at least one laser scanning wall, and to low a grade safety area outside the at least one laser scanning wall. The system comprises also at least one area detecting laser scanner arranged to detect humans at least in the low grade safety area around the high grade safety area.

Abstract: A system for forming a controlled safety area for a manipulator which system comprises a control unit being arranged to monitor the controlled safety area in order to prevent human entering to the controlled safety area to be hit by the manipulator working within the controlled safety area. The system according to the invention comprises at least one laser scanner being arranged to form at least one laser scanning wall such that the controlled safety area is divided in to a high grade safety area in between the at least one laser scanning wall, and to low a grade safety area outside the at least one laser scanning wall. The system comprises also at least one area detecting laser scanner arranged to detect humans at least in the low grade safety area around the high grade safety area.

Abstract: In a method of performing a network survey for a radio telecommunications network, signals from a location system external to the network are received for determining the location of the network survey device. The network survey device is located at a first location. Signals from a first base station of the network are received at the first location by the means of the network survey device, thereby measuring the synchronization of the first base station relative to a reference time-frame determined from the location system. The network survey device is moved to a second location. Signals from the first base station are received at the second location by the means of a network survey device, thereby measuring the synchronization of the first base station. The results of the measurements are compared with pre-determined network management criteria. Based upon the result of the comparison, the configuration of the network is modified.