Railway track bolt looseness detection method and device, unmanned aerial vehicle and medium

The invention relates to the field of automatic detection technologies, in particular to a railway track bolt looseness detection method and device, an unmanned aerial vehicle and a medium. The method comprises the following steps: acquiring area image information of each railway preset area of a railway track; according to the regional image information, whether a loose bolt exists in the railway track or not is recognized; if the loose bolt exists, the position of the loose bolt is determined according to the railway preset area corresponding to the loose bolt and the area image information of the railway preset area; the position of the loosened bolt is fed back to a maintainer terminal device; according to the area image information corresponding to the loosened bolt, the spraying direction is determined, and a spraying device is controlled to spray paint to the loosened bolt according to the spraying direction. The method has the effect of reducing the waste of human resources. 本申请涉及自动检测技术的领域，尤其是涉及一种铁路轨道