System and method for parcel singulation based on collision detection
US8301298B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 2009 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Jun 24, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G43/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
According to an aspect of the invention, there is provided a method for detecting collisions of parcels on a moving conveyor belt, including the steps of representing each belt with a rectangular cell mesh of columns and rows, for each parcel on the belt system, identifying those cells on a belt where each parcel contacts the belt, marking a parcel's new cell position after a predetermined time frame in a direction parallel to the motion, for each marked cell, incrementing a corresponding collision detector counter in a collision detection table, marking a parcel's new cell position after the predetermined time frame in a direction perpendicular to the motion, for each marked cell, incrementing a corresponding collision detector counter in the collision detection table, and checking the collision detector counter value in each cell, where a value greater than or equal to 3 indicates a parcel collision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.