Building Ad Hoc Based On WiFi Direct And Collecting?Sharing Environment Information Technology

With the development of internet and smart devices,LBS(location based service)has extent to all walks of life and played an important role in them,which influent the daily life very much.However,when battle teams perform some tasks(e.g.relief)in wild environment,they often have a problem that there are no internet and roads,which leads LBS to be unable.This paper provides some simple location based service by building ad hoc to keep the ability to communicate and collecting important points data and trajectory data,which has great significance to cognize environment and provide crosscountry movement paths.The main content of this paper is list as follow:(1)This paper elaborates the importance of LBS in wild environment,and from the point of situation performing tasks in wild always face,the background and research purpose are decribed.This paper also summarizes and analysizes the research status of related technologies.and builds the research focus and the overall research framework.(2)An ad hoc based on WiFi Direct is built.Firstly,this paper introduces the related konwledge of ad hoc and WiFi Direct technology,as well summarizes and analysizes the characteristics of the technology,whare an ad hoc net is build based.A mechanism of communication and sharing is designed and implemented.Finally,the transmission performance of the net is tested.(3)This paper ensures the content of point information in wild and trajectory attribute information oriented cross country movement(CCM)by analysizing data collection in wild environment.For the former is based on the combining POI and cognition surrounding of the army,and the latter is based on the combining supporting data of CCM and fact.(4)the functions of points information collection and trajectory data oriented CCM are designed and implemented,and information sharing is implemented through the ad hoc.The former is implemented on Android by using and improving existing collection applications,the latter is combining supporting data oriented CCM and trajectory data.This paper tests sharing function by using points information to prove the effectiveness of ad hoc built,and and the whole process is implemented form collection to sharing.