Detection assembly, man-machine interaction device and mobile platform

A detection assembly, a man-machine interaction device and a mobile platform are used for being arranged on the mobile platform, the detection assembly comprises a rotating shaft and a detection mechanism, and the rotating shaft is provided with a containing cavity and is suitable for being rotationally connected with the mobile platform; the detection mechanism is contained in the containing cavity and used for detecting information of a cabin of the mobile platform. The rotating shaft and the detection mechanism are arranged, the detection mechanism is contained in the containing cavity formed in the rotating shaft, the rotating shaft rotates to enable the detection mechanism to detect external information, the detection assembly is not exposed out of the cabin, and the user experience can be improved. 一种探测组件、人机交互装置和移动平台，用于设置于移动平台，探测组件包括转轴和探测机构，转轴具有收容腔，转轴适于与移动平台转动连接；探测机构收容于收容腔，并用于探测移动平台的座舱的信息。通过设置转轴和探测机构，探测机构收容在转轴开设的收容腔中，转轴转动以使探测机构探测外部信息，探测组件不外露于座舱，能够提升用户体验。