The invention relates to the technical field of computer vision, in particular to an efficient expressway data storage system based on computer vision. The system comprises a data acquisition module used for acquiring perception data and risk data; a trend correlation acquisition module used for acquiring the trend correlation between the lane speed and the lane flow; a road section priority value acquisition module 30 used for acquiring the correlation between the perception data and the risk data and obtaining the priority value of road sections according to the trend correlation and the road bending degree; a road section score acquisition module used for acquiring the score of each road section according to the long-range correlation of the historical perception data, the priority value of the road section and the data access frequency and time of the road section; and a data caching module used for performing data caching according to the score of each road section, and releasing the data with the lowest score of the road section preferentially when the caching space is insufficient. The technical problems of low reading efficiency of important data in the expressway data and low hit rate of the data in the caching space in the prior art are solved.

    本发明涉及计算机视觉技术领域,具体涉及一种基于计算机视觉的高速公路数据高效存储系统。该系统包括数据获取模块,用于获取感知数据和风险数据;趋势相关性获取模块,用于获取车道速度和车道流量之间的趋势相关性;路段优先值获取模块30,用于获取感知数据和风险数据之间的相关性,并结合趋势相关性和道路弯曲程度得到路段优先值;路段评分获取模块,用于根据历史感知数据的长程相关性、路段优先值、路段数据访问频率和时间得到每个路段评分;数据缓存模块,用于根据每个路段评分进行数据缓存,当缓存空间不足时,优先释放路段评分最低的数据,解决了现有技术中高速公路数据中重要数据的读取效率低,且缓存空间中数据命中率低的技术问题。


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    Title :

    Efficient expressway data storage system based on computer vision


    Additional title:

    基于计算机视觉的高速公路数据高效存储系统


    Contributors:
    ZHANG LIHAI (author)

    Publication date :

    2021-09-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr



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