This diploma thesis is devoted to the upgrade and extension of the software package Pixelman for control, power and data acquisition of pixel detectors of the Medipix type such as Medipix2, MXR and Timepix. The package is designed to op- erate the detectors with devoted interfaces - MUROS2 and the USB-based integrated interfaces. These interfaces with connected detectors are controlled on the PC side by Pixelman software package. Pixelman is now newly extended to support the new Medipix3 detector and the new read-out interface FITPix. Further, the software has been extended so that it is possible to operate it on 3 different operating systems: Microsoft Windows, Mac OS X and Linux. For this purpose the Java programming language and its Swing framework are used. A new graphical user interface was created in Java, which features device window docking and enhanced monitoring. Also, a bridge between the software core written in C++ and Java programming language was developed as well as a framework allowing creation of Java extension modules (plugins). The operation of the package is evaluated and demonstrated by real measurements of a network of neutron detectors in the ATLAS experiment at CERN and tests for dosimetry studies in space with NASA.