测绘通报 ›› 2017, Vol. 0 ›› Issue (3): 62-66.doi: 10.13474/j.cnki.11-2246.2017.0085

• 学术研究 • 上一篇    下一篇

一种基于WiFi Direct技术的位置信息共享方法

王冰冰1, 陈刚1, 张锦明1,2   

  1. 1. 信息工程大学地理空间信息学院, 河南 郑州 450001;
    2. 中国科学院遥感与数字地球研究所, 北京 100081
  • 收稿日期:2016-08-31 修回日期:2017-01-10 出版日期:2017-03-25 发布日期:2017-03-31
  • 作者简介:王冰冰(1991-),男,硕士生,主要研究方向为位置服务。E-mail:641397730@qq.com
  • 基金资助:
    国家自然科学基金(41371383)

A Method for Location-based Information Sharing Based on WiFi Direct

WANG Bingbing1, CHEN Gang1, ZHANG Jinming1,2   

  1. 1. Institute of Geography Space Information, Information Engineering University, Zhengzhou 450001, China;
    2. Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100081, China
  • Received:2016-08-31 Revised:2017-01-10 Online:2017-03-25 Published:2017-03-31

摘要: 当移动设备处于离线状态时,设备之间难以实现基于位置的信息共享。本文尝试利用Android设备搭载的WiFi Direct技术建立无线自组织网络的方法,实现了在该网络下位置信息的共享,并对该网络的性能进行了测试,同时考虑了设备中存在有设备与服务器连接时的信息共享情况。试验表明,该方法可在一定程度上解决因网络中断,设备之间不能进行位置等信息的共享或从服务器获取信息的问题。

关键词: 位置服务, WiFi Direct, 自组织网络, 位置信息共享

Abstract: It is difficult for devices to share location-based information with each other, when they are off-line. A method that builds and tests wireless ad hoc networks for Android devices based on WiFi Direct is tried, by which we implement the location-based information sharing, as well as we take the situation in which some devices in the group have a connection to the server into consideration. The test shows that the method could be a solution to the problem that devices can't share location-based information with each other or request information from the server to some extent, which is caused by network interruption.

Key words: location-based service, WiFi Direct, ad hoc network, location-based information sharing

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