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Wi Fi 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。 When the mobile device is offline, it is difficult to implement location-based information sharing between the devices. This paper attempts to use the Android device equipped Wi Fi Direct technology to establish a wireless ad hoc network method to achieve the sharing of location information in the network, and the performance of the network were tested, taking into account the presence of equipment and server devices Connection information sharing situation. The experiment shows that this method can solve the problem of network interruption, the sharing of information such as the location of devices can not be obtained or the information from the server to a certain extent.