Gripper Arcuate End Face Sensor Array for Pharmaceutical Package Detection

The detection system is segmented into multiple sensors distributed across different locations on the storage table (front, rear, left, right sides). Each sensor monitors a specific zone, ensuring complete coverage including curved areas where packages may get stuck. This segmentation allows the system to detect partial movements that a single light barrier would miss.

The patent transitions from a single-plane light barrier detection to a multi-dimensional sensor array distributed throughout the storage table volume. Sensors are positioned at different heights and locations to create three-dimensional detection coverage, enabling detection of packages in curved front areas that lie outside the original light barrier's detection plane.

The curved front area is divided into multiple detection zones by distributing sensors across the curved surface. Each sensor monitors a specific segment of the curved area, ensuring that the entire curved front surface remains within detection range. This allows the curved design to reduce gaps while maintaining detection precision through localized sensor coverage.

Sensors are strategically positioned to provide enhanced detection coverage in the curved front areas where packages are most likely to get stuck. The detection density is increased in these critical zones compared to straight sections, ensuring that the curved geometry's advantage (reduced gap) does not compromise detection accuracy in the most problematic areas.

The distributed sensor array serves multiple functions: detecting package presence, verifying complete movement onto the storage table, monitoring curved area occupancy, and providing redundancy. This multi-functionality justifies the increased sensor count by making each sensor contribute to several detection objectives simultaneously, reducing the need for separate specialized detection systems.

The patent replaces complex mechanical detection mechanisms (such as physical barriers or mechanical switches) with electronic sensors that can be distributed throughout the storage table. This substitution reduces mechanical complexity while achieving more comprehensive detection coverage, as electronic sensors require less physical space and can be positioned in locations inaccessible to mechanical detection systems.