| 摘要 |
A position control system for a manual picking workstation having a plurality of component bins includes a light device and a process controller. The light device projects a light beam along a plane. The process controller includes a processor and memory containing a calibrated assembly sequence and predetermined bin coordinates for each of the component bins. The process controller executes a method to detect, via the light device, an instance of beam breakage wherein the light beam is interrupted or broken, and to determine two-dimensional (2D) coordinates of the beam breakage. The process controller also determines corresponding bin coordinates of an expected bin via the calibrated assembly sequence, compares the determined 2D coordinates to the corresponding bin coordinates, and executes a control action when the determined coordinates do not match the corresponding bin coordinates. The light device may be an oscillating laser scanner or fixed lasers. |
