Design and realization of fault diagnostic system for trunking base station based on LabVIEW and Visual Basic

Trunking communication system is a sort of specialized command and control system. It is widely used in rescue work and public safety emergency. The peculiar occasion of its application requires more efficient fault diagnostic system. The rapid development of virtual instrument provides a new approach to the fault diagnosis of communication equipment. In this paper, the construction and the realization of fault diagnostic system for trunking base station are discussed and described in detail. The VI which contains signal acquiring unit and signal processing unit is developed by LabVIEW. And the fault diagnosing unit is developed by Visual Basic. The fault diagnosing unit analyzes the physical parameters and the waveform provided by VI. Finally, the fault diagnostic result is given, and the scheme of resolving faults is provided. By analyzing, it can be shown that this kind of fault diagnotic means can be used in other communication equipments.