UAV, system and method for determining landing status of UAV

An unmanned aerial vehicle (UAV), comprising:

• a landing gear;
• a plurality of sensors, furnished to the landing gear;
• and
• a processing unit, coupled electrically with the plurality of sensors, being configured to determine, while the UAV is landing towards a landing surface, whether a number of the plurality of sensors that contact the landing surface synchronously within a land-judging time is greater than or equal to a predetermined land-judging number, wherein determining whether the number of the plurality of sensors that contact the landing surface synchronously within the land-judging time is greater than or equal to the predetermined land-judging number comprises:
• starting to count a time at a first moment that one of the plurality of sensors touches the landing surface;
• and
• determining whether the land-judging time is reached;
• wherein if the land-judging time is not yet reached, determining whether the number of sensors out of the plurality of sensors that touch the landing surface synchronously is greater than or equal to the predetermined land-judging number;
• and
• if the number of sensors out of the plurality of sensors that touch the landing surface synchronously is greater than or equal to the predetermined land-judging number, then determining that the UAV is landed.

An unmanned aerial vehicle (UAV) method for determining a landing status of a UAV, comprising:

• landing the UAV towards a landing surface, wherein the UAV has a landing gear furnished thereon with a plurality of sensors;
• determining whether the UAV has landed completely on the landing surface by judging if a number of sensors out of the plurality of sensors that touch the landing surface synchronously within a land-judging time is greater than or equal to a predetermined land-judging number;
• wherein determining whether the UAV has landed completely on the landing surface comprises:
• starting to count a time at a first moment that one of the plurality of sensors touches the landing surface;
• and
• determining whether the land-judging time is reached;
• wherein if the land-judging time is not yet reached, determining whether the number of sensors out of the plurality of sensors that touch the landing surface synchronously is greater than or equal to the predetermined land-judging number;
• and
• if the number of sensors out of the plurality of sensors that touch the landing surface synchronously is greater than or equal to the predetermined land-judging number, then determining that the UAV is landed.