The invention relates to the technical field of unmanned aerial vehicles, and particularly discloses a geographic information surveying and mapping unmanned aerial vehicle. An antenna mechanism is mounted on a rack and comprises an antenna and an antenna rotating assembly; the antenna rotating assembly comprises a gas generating unit, a starting switch and a gas chamber cavity, a first piston rod is arranged in the gas chamber cavity, the opening of the gas chamber cavity faces the upper portion of the unmanned aerial vehicle and is hinged to the outer wall of the antenna, and the hinged position of the gas chamber cavity and the antenna is wrapped with an elastic sealing film; and the end of the first piston rod abuts against the inner wall of the antenna. A control device comprises a signal detection module and an antenna rotation control module; the signal detection module is used for sending an antenna extension instruction to the antenna rotation control module if the signal intensity is lower than a preset signal intensity threshold value; and after the antenna rotation module receives the antenna extension instruction, the gas generation unit continuously generates gas within a preset first time by controlling the starting switch. By adopting the technical scheme of the invention, the signal intensity can be enhanced when the unmanned aerial vehicle is shielded by vegetation.

    本发明涉及无人机技术领域,具体公开了一种地理信息测绘无人机,机架上安装有天线机构,天线机构包括天线和天线转动组件;天线转动组件包括气体发生单元、启动开关和气室腔,气室腔内设第一活塞杆,气室腔的开口朝向无人机的上方,气室腔的开口和天线的外壁铰接,气室腔与天线铰接处包裹有弹性密封膜;第一活塞杆的端部抵向天线内壁;控制装置包括信号检测模块和天线转动控制模块;信号检测模块用于若信号强度低于预设信号强度阈值,则向天线转动控制模块发送天线伸出指令;天线转动模块接收到天线伸出指令后,通过控制启动开关使气体发生单元持续产生预设第一时间的气体。采用本发明的技术方案能够在无人机被植被遮挡时,增强信号强度的问题。


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    Title :

    Geographic information surveying and mapping unmanned aerial vehicle


    Additional title:

    一种地理信息测绘无人机


    Contributors:
    LI LING (author) / BAI WENJUAN (author) / ZHAO SHIBAO (author) / LI JIAN (author)

    Publication date :

    2021-06-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01Q Antennen , ANTENNAS, i.e. RADIO AERIALS / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G01V Geophysik , GEOPHYSICS



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