Client monitoring based method for dynamically selecting on-line tile map servers

Abstract

The invention discloses a client monitoring based method for dynamically selecting on-line tile map servers. The method comprises the following steps: numbering the tile map servers providing the same service content at the server terminal; storing in the form of a circular linked list; compiling information of the circular linked list to expose to the client in an interface form; when the client in the C / S mode begins to request for downloading an on-line tile map, calculating the average velocity v of downloading a tile from a certain tile map server to the local within the specific time t in the multithreading environment; comparing and analyzing the v value with the user highest access velocity v1 and the undermost access velocity v2, and judging whether switching to other tile map servers is necessary or not. The method realizes the functions of conducting server loading balance adjustment at the client, reduces calculation load for the servers, can guarantee the velocity of downloading the tile maps for users with different accesses through parameter control when the user amount to access the data is relatively large, and improves operation efficiency.

Description

technical field [0001] The invention relates to the fields of public map network release, urban planning information release, land resource management, etc., and specifically relates to a method for dynamically selecting an online tile map server based on client monitoring. Background technique [0002] In recent years, tile-style online network maps have penetrated into all aspects of people's lives, such as driving navigation and topic information query through Google Maps in mobile phones, and online real estate sales using Baidu Maps. Users only need to enter the specified map URL to quickly browse to the map content they need to view. The content of these maps can rapidly change the fineness and geographic scope of the map content as the user zooms in and out, which is highly dynamic. So how are these online tile maps transmitted to the client? In fact, when the client requests to browse the map, the remote tile map server will calculate the required tiles according t...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, and propose a method for dynamically selecting an online tile map server based on client monitoring, so as to solve the load balancing of multiple servers of the online tile map at present, and to perform the process according to user authority. The problem of access speed control is suitable for the overlay processing of a map of planning scheme content and various basic terrain data in urban planning

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