The invention belongs to a parallel
robot device with the functions of
fault tolerance and
fault correction and a fault tolerating and correcting method thereof. The device comprises a movable platform, a fixed platform and a driving leg thereof, a flexible
rope connected with a displacement sensor and a tensioning spring in series, a
transmission system and a
control system containing a
field programmable gate array (FPGA). The fault tolerating and correcting method comprises the following steps of state monitoring, fault diagnosis, fault positioning and
fault tolerance and correction of a fault sensor. Because the flexible
rope with the displacement sensor and the tensioning spring is additionally arranged between the centers of the movable platform and the fixed platform and an FPGA controller is adopted in the
control system, the parallel
robot device has the characteristics that on-line reconstruction and
self maintenance can be carried out for the faults of a driving leg sensor, the parallel
robot device has short reconstructing time, high speed and high reconstructing and self-maintaining efficiency of a
system, and can ensure that a robot can normally work when the driving leg sensor generates the faults so that the working efficiency and the working and operating safety and reliability are effectively enhanced and the heavy losses caused by the sudden faults of the driving leg sensor can be avoided, and the like.