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Development of a file system for storing data of an intelligent video surveillance system

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The article considers the problem of creating a file system with characteristics different from universal ones for storing data of intelligent video surveillance systems. Access to the file system is a determining factor on which the performance of the entire system depends. A fast data bus and a modern processor do not always determine the speed of data operations, but also the hard disk access driver which, accordingly, can limit the system ability to perform basic functions: surveillance, image analysis, detection of images and events. It is necessary to select a more productive server which is expensive, or use a specialized driver to increase the speed of writing and reading on the hard disk. The use of a specialized file system focused on solving one or a limited number of problems can significantly increase the speed of systems in cases where the server is used with the same technical characteristics. In intelligent video surveillance systems, the use of a specialized file system can provide an increase in the speed of image processing and the accuracy of object detection in the video stream, due to the increased speed of reading and writing from the disk. An analysis of existing file systems has shown that the existing solutions do not provide the required speed of working with data in intelligent video surveillance systems when using technical means with the same computing characteristics. In this article, the authors propose a specialized file system for storing data in intelligent video surveillance systems. A file system has been developed that is focused on solving one problem: storing data in intelligent surveillance systems. The developed driver increases the speed of accessing the data on the hard drive. The new file system for storing data in an intelligent video surveillance system works together with a database for one, separate task. A comparison of the speed of writing and reading data using the developed driver and using existing universal drivers made. As a result of the comparison, it has been established that the use of the new driver has increased the speed of writing and reading by 43.4 % relative to NTFS file system. As part of the study, a file system for intelligent video surveillance systems was developed, but similar specialized file systems can be developed for use in other areas where it is necessary to increase the speed (reduce the time) of writing and reading data from the file system. 

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