Elevator Hoistway Marking Positioning With 3D Flight Control

The patent replaces the traditional mechanical guide rail system with an aerial robot that flies freely within the hoistway. The robot uses flight control mechanisms instead of mechanical constraints, allowing it to reach any location without being bound by fixed rails. This substitution of mechanical guidance with autonomous flight control resolves the contradiction between structural simplicity and location flexibility.

The marking positioning device transitions from a static, rail-bound system to a dynamic, freely flying aerial robot. The robot can change its position, orientation, and movement path dynamically to adapt to different marking locations and three-dimensional surfaces, thereby achieving versatility without requiring complex mechanical guide rail structures for each possible location.

The aerial robot is equipped with self-positioning capabilities through onboard detecting units that automatically detect the robot's position within the hoistway. The control unit uses this detected position information along with three-dimensional shape data to autonomously calculate and execute the flight path needed to reach designated marking positions, eliminating the need for complex external control systems or manual operation.

The system implements a feedback loop where the detecting unit continuously monitors the robot's position, the control unit compares the current position with the target marking position, and adjusts the flight control accordingly. This feedback mechanism enables precise positioning and easy operation by automatically correcting any deviations from the intended flight path.