Geographical video data organization management method supporting storage and calculation linkage

Abstract

The invention discloses a geographical video data organization management method supporting storage and calculation linkage. The method comprises the following steps: connecting a video stream to a List data structure of a memory database Redis according to a video frame sequence, wherein real-time query is supported; performing analysis by utilizing the video frame sequence to extract a change element, and storing the change element in a change element memory table of a relational database MySQL; detecting an abnormal event in real time through a trigger mechanism of the MySQL, and storing the abnormal event in an event memory table; establishing an Insert trigger in the event memory table, and synchronizing the event to the Redis in real time when the event is written; pushing the event to a geographic object subscribing the event by utilizing a "subscription / release" message mechanism of the Redis, and driving active execution of video analysis; writing video frames in the memory database into a distributed file system MongoDB in group and in batch according to a time period delta t, and establishing a mixed sheet key of "DAY+CAMERA_ID", so that dispersed storage of mass geographic videos is realized; and forming a motion track of a camera by viewing range sequences of the video frames, and updating the motion track as a node to a time-space index constructed based on the viewing range sequences.

Description

technical field [0001] The invention belongs to the technical field of geospatial information systems, in particular to a method for organizing and managing geographic video data for real-time analysis and processing. Background technique [0002] Faced with real challenges such as high incidence of urban crime, insufficient police resources, and high labor costs, video surveillance, as a new police strategy for crime prevention and control, has been widely used in the security field. At present, my country has built the world's first large-scale multi-level urban networked video surveillance network, which generates dynamic access to TB-level / day real-time video streams and total PB-level video files, providing support for national public security and emergency management technology The system provides important basic data. Public security emergencies in complex geographical environments have large-scale mobility. The traditional decentralized processing of independent vi...

AI Technical Summary

Problems solved by technology

This type of method avoids the waste of storage space caused by long-term monitoring of the same scene that has not changed. It belongs to the category of video compression storage, but small or irrelevant scene changes will be brought, and the subject of monitoring cannot be highlighted, which not only wastes storage space, And it's a big distraction from finding important information

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