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The work focuses on the computer simulation modeling of the control system with the network channel of information transmission. We have studied the impact of data buffering on the quality of control for the systems with a limited volume buffer for data packets. It has been expected that the data packet transmission over the network channel for the quantization period is carried out with a given probability. If the data packet from the digital sensor is not transmitted in one quantization tact to the controller, it is placed in the sensor buffer. During data is transmitted over the channel, all packets from the sensor buffer are transmitted to the controller buffer. The controller processes incoming data from the buffer sequentially-one packet per quantization tact. To simulate such situations, it was proposed to use the appropriate developed random processes. The novelty of the developed simulation model lies in the fact that in the basis for the development of this model is accepted the modeling of the time gap of the information flow of data. Simulation of the network control system operation was carried out in the environment Simulink of Matlab system.

The work focuses on analyzing the modern process control systems in the food and agricultural industries for improving management quality. Computer simulation of the control systems with a network channel for transmitting information was carried out for various volumes of data buffers for system elements. The subject of the investigation is to study the effect of data buffering on the quality of process control for systems with a limited buffer volume for data packets. It is assumed that the transmission of a data packet over a network channel during the quantization period is carried out with a given probability. If the data packet from the digital sensor is not transmitted in one quantization cycle to the controller, then it is placed in the sensor buffer. When data is transmitted over the channel, all packets from the sensor buffer are transferred to the controller buffer. The controller processes the incoming data from the buffer sequentially–one packet per quantization cycle. For simulate such situations, it was proposed to use the corresponding developed random processes. The innovation of the developed simulation models is in the fact that the development of the simulation models is based on modelling the time gap of the information data stream. Modelling the functioning of the network control system was carried out in the Simulink environment of the Matlab system.