Multithread Software Architecture for Processing Multichannel Medical Signals

The purpose of research is development of a method for processing and graphical display of multichannel medical signals in quasi-real time.

Methods. The method assumes segmentation of the program into easily used class modules, which are combined into a common hierarchy using object-oriented inheritance principles. It allows building medical signal registration systems of wide complexity. The method is based on the division of the general computational process into certain stages, called steps. A separate part of the hardware is allocated for each stage, and the process of transferring input-output data is organized between the stages. The set of steps is a pipeline for data processing. The proposed architecture of the medical signal processing system allows pipelined multi-threaded processing of multichannel medical signals, which increases the efficiency of using multi-core computing platforms.

Results. Based on the proposed method, a modular structure of medical signal processing software for a multichannel data acquisition system was developed. Data processing in pipeline processing stages includes such typical operations as writing data to a hard disk or to a separate memory buffer, signal filtering - removing a constant component or suppressing a certain frequency spectrum, calculating signal diagnostic indicators, analyzing the obtained indicators, making decisions, and etc. According to the proposed modular structure, software for processing multichannel medical signals in real time has been developed.

Conclusion. In the course of the study, software for processing multichannel medical signals in real time was developed. A method has been developed that allows the program to be segmented into easily used class modules, which are combined into a common hierarchy using object-oriented inheritance principles.

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