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Method for realizing video network map multilevel cache based on spatial roaming position

A network map and caching technology, applied in the computer field, can solve problems such as low client access efficiency, small amount of information, and video interruption, and achieve the effects of improving user experience quality, moderate message granularity, and eliminating potential bottlenecks

Inactive Publication Date: 2013-03-20
周寅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One: Due to many uncertain factors on the network, the reading of road information and video is not timely, resulting in video interruption and instability of roaming experience
[0006] Two: Too many times of accessing the database through the network, the amount of information for each visit is small, the additional overhead of network communication and database operations is too much, and the client access efficiency is low
[0007] Three: The server is accessed many times, the additional cost of the service is too large, and the service is busy

Method used

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  • Method for realizing video network map multilevel cache based on spatial roaming position
  • Method for realizing video network map multilevel cache based on spatial roaming position
  • Method for realizing video network map multilevel cache based on spatial roaming position

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] Such as Figure 1 to Figure 5 shown. A method for realizing multi-level caching of video network maps based on spatial roaming positions, including a client algorithm and a server algorithm, wherein: the client algorithm includes the following steps :

[0042] step 1: Set the graph cache C1 to store the structural information of the graph, including the information of the points and edges in the graph and the latest update time and version number of each point and each edge; set the video cache C2 to store the video associated with the edge in the graph and each The latest update time and version number of a video; the latest update time of each object in the initialization cache is the current time; the version number of each object in the initialization cache is zero;

[0043] Step 2: At the beginning of each user's roaming, se...

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Abstract

The invention relates to a method for realizing a video network map multilevel cache based on a spatial roaming position. The method comprises a client algorithm and a server algorithm and is characterized by comprising the following steps of: establishing an image cache C1 and a video cache C2 at a client and establishing an image cache SC1 and a video cache SC2 at a server respectively, so that a network-based multilevel cache structure is formed, wherein the cache of the client is used for improving the information extraction efficiency of user roaming operation, while the cache of the server is used for improving the service efficiency by reducing the access to a database. By separately setting two different caches for images and videos, the influence of different information limit of the two caches can be eliminated. The method for realizing the video network map multilevel cache based on the spatial roaming position also has the characteristics of high stability of actual scenery roaming, no breaking phenomenon, moderate information granularity, and low extra expense of communication and the database, and can generally improve the query efficiency of a system and the user experience quality of the actual scenery roaming.

Description

technical field [0001] The invention belongs to the field of computer technology. In particular, it relates to a method for caching computer multimedia information, and especially relates to a method for realizing multi-level caching of video network maps based on spatial roaming positions. Background technique [0002] With the rapid development of multimedia technology and network map technology, network video map technology has become an important direction for the future development of network map. Network video map technology can not only provide traditional electronic map functions such as place name search and route navigation, but also provide route-synchronized real-scene video for route navigation, which greatly improves the user's sense of presence and navigation experience. [0003] In order to support distributed processing and arbitrary line query operations, the discrete mathematical structure "graph" is an ideal storage method for large-scale video electroni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/06
Inventor 周寅
Owner 周寅
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