Abstract: At present, in addition to the wired mode (optical fiber, PLC), a variety of new wireless communication technologies (LTE, WiMax, etc.) are also widely applied to the power user electric energy data acquire system. These kinds of wireless communication system use base stations to gather and manage large terminal information within the region. However, when failures of the base stations happen, it couldn't be obtained wide range of power users information which affects the normal operation of the whole power transmission and distribution system. In this paper, an emergency plan by building a low altitude wireless communication platform using unmanned aerial vehicles is designed, and then analyzed and modeled the wireless channel in this scenario. On the basis of this, a long distance uplink channel transmission scheme based on broadband OFDM is designed, and then the communication performance and system capacity of the scheme is analyzed. Simulation results show that the proposed scheme can meet the emergency repair stations within 10 km.

Key words: electrical information acquisition system, unmanned aerial vehicle (UAV), emergency communication, communication performance, platform design