Analytical model for monitoring the technical condition of radio equipment of radio line in the process of functioning with a preliminary assessment of the signal and interference situation in the communication channel
The article presents a model for monitoring the technical condition of radio facilities in the process of operation. Application of the presented model will allow to reveal gradual latent failures, arising in the process of radio facilities operation due to deviations (drift) of parameters beyond tolerance limits. To identify this type of failures, elimination of deviations, annual technical maintenance (preventive maintenance system) with the involvement of engineering and technical personnel and measuring instruments is currently carried out. As practice shows, maintenance by the engineering staff with low qualification often leads to inoperability of radio facilities on the one hand, as well as the existence of long periods, hidden from the operating services, with the causes of reduced technological indicators of communication facilities, which are many days and even many months in nature, on the other hand. In this case, for the transition from the planned preventive maintenance strategy of communication facilities and systems to maintenance according to the actual technical condition, the development of reliable automated means of technical condition monitoring, working both in continuous and discrete modes is necessary. The aim of the work is to reliably identify the technical condition of radio facilities in the process of radio link operation. The novelty of the work consists in the system approach to the definition of the technical state of radio facilities in the process of their functioning, taking into account the "technical state of the environment", which is expressed in the evaluation of the quality of the signal formed by the transmitting device in the environment of the receiving radio centers and the joint influence of the transmitting and receiving parties to the main target indicator - the probability of communication with the required reliability (error probability) in the formed radio links. Result: the analytical model of the relative identification of the technical condition of the functioning radio receiver device was obtained, and the conditions for ensuring the required reliability of determining its technical condition were identified. Practical significance lies in the possibility of using the obtained analytical model for monitoring the technical condition of functioning radio facilities, which will allow to detect the onset of gradual hidden failures in a timely manner.