Method for realizing space positioning of artificial limbs with multiple degrees of freedom to random targets

The invention discloses a method for realizing space positioning of upper artificial limbs with multiple degrees of freedom to random targets, which comprises the following steps: respectively installing a three-dimensional attitude sensor on each upper artificial limb with multiple degrees of freedom; installing another three-dimensional attitude sensor on the head or the cap of a user; installing a laser ranging sensor on the head or the cap of the user; and providing an artificial limb controller for the user. When a random target needing to be operated appears, the user independently adjusts the attitude of the head to enable the laser beam sent from the laser ranging sensor to aim at the target, the controller sends an instruction to measure the value of the distance between the target and the laser ranging sensor in real time, and simultaneously, the controller computes and converts the value of the distance into the real-time operating space coordinate value of the target in a base coordinate system of the artificial limb. The method of the invention is used for realizing real-time operation and space positioning of upper artificial limbs with multiple degrees of freedom of disabled people with shoulder disarticulation prosthesis to random targets in an unstructured environment.