Detection apparatus of movement mechanism, movement mechanism and control method thereof

The invention discloses a detection apparatus of a movement mechanism, a movement mechanism and a control method thereof. The apparatus comprises an in-place signal detection unit (31) and a controller (33), wherein the in-place signal detection unit (31) forms a closed circuit (30) with a movement mechanism (32) and used for acquiring a first state variation signal of the closed circuit (30) as an in-place signal that the movement mechanism moves to the preset position when the movement mechanism moves to a preset position; the first state comprises any one of opening and closing of the closed circuit (30); and the controller (33) is used for determining that the movement mechanism already moves to the preset position according to the in-place signal. By adopting the scheme, the defects in the prior art such as complicated structure, low reliability, small application range and the like can be overcome, and the beneficial effects such as simple structure, high reliability and wide application range can be re