Mobile map service searching method based on P2P (point to point) node scheduling

A search method and node technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems that affect terminal data access, update and interoperability, poor user experience, and large network load, etc., to achieve improvement The effect of performance load balancing, reduced waiting time, and improved speed

Inactive Publication Date: 2013-02-13
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the geographical information system software used in many regions of my country is different. Most of these systems have their own data structures and formats, and there are different spatial databases, which affect the access, update and interoperability of data by terminals in the mobile network. In addition, through The traditional GIS platform searches for mobile spatial services, which have problems such as heavy network load, slow response speed, and poor user experience. However, the interaction efficiency between mobile clients and servers has become the main bottleneck restricting various mobile map services

Method used

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  • Mobile map service searching method based on P2P (point to point) node scheduling
  • Mobile map service searching method based on P2P (point to point) node scheduling
  • Mobile map service searching method based on P2P (point to point) node scheduling

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Experimental program
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Embodiment

[0049] In the first step, in a system area with multiple mobile devices, group them according to the communication quality of the network between nodes, and each group is identified by a unique group number, such as using to represent the group number of a certain group (i, j). The communication quality between network nodes is divided according to the type of IP address (such as class A, class B, class C, etc.) and network bandwidth. Class nodes are grouped together and given a group number G.

[0050] In the second step, after the grouping is completed, classify according to the communication delay between nodes in this area, calculate the average communication delay T between the classified node and other nodes in the group, and according to the size of the delay T is The nodes are divided into levels. If no matching results can be found, the worst level will be added directly. This makes it possible to put all nodes into multiple different regions.

[0051] The third s...

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Abstract

The invention discloses a mobile map service searching method based on P2P (point to point) node scheduling. The method comprises the steps of: (1) grouping nodes according to the IP type of the network and the network bandwidth in a region when a common node applies to join in a system; (2) dividing the grades of the nodes in a group according to the communication delay of the nodes after grouping is completed; (3) finding out the group with the highest service quality, and updating the shared information to each node; and (4) adopting a function of a semantic retrieval mechanism, which can effectively calculate the similarity of a node and the corresponding node to guide inquiry, and finally obtaining the most suitable map service provider. The method adopts the P2P technology, and provides a grouping and grading strategy of the mobile node and an inquiry processing optimization realizing mechanism, and therefore, the map service searching efficiency is improved. The method has broad application prospect in related work of mobile GIS (Geographic Information System) and the application field of mobile GIS, such as navigation positioning, illegal land monitoring, mineral exploration, urban planning.

Description

technical field [0001] The invention relates to the field of mobile law enforcement and supervision, in particular to an efficient search method for mobile map services based on P2P node scheduling. It also has a certain reference value for other related mobile GIS industries. This method has practical significance for the real-time data update of land and surveying and mapping departments. Background technique [0002] At present, the geographical information system software used in many regions of my country is different. Most of these systems have their own data structures and formats, and there are different spatial databases, which affect the access, update and interoperability of data by terminals in the mobile network. In addition, through The traditional GIS platform searches for mobile spatial services, which have problems such as heavy network load, slow response speed, and poor user experience. However, the interaction efficiency between mobile clients and servers ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30H04L29/08
Inventor 杜震洪张丰刘仁义许丹海
Owner ZHEJIANG UNIV
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