Abstract: A monitoring system for automated detection of egress or ingress of a drive unit between first and second spaces in an inventory system includes a path for conveying the drive unit between the first and second spaces that defines an intermediate space between the two spaces. A sensor is configured to detect passage of the drive unit between the first space and the intermediate space, and an identification sensor is arranged to read an identifier of the drive unit. In combination with an inventory management system, the monitoring system can be used to update and maintain accuracy of a virtual representation of a physical inventory space that employs automated drive units or shuttles.

Abstract: A monitoring system for automated detection of egress or ingress of a drive unit between first and second spaces in an inventory system includes a path for conveying the drive unit between the first and second spaces that defines an intermediate space between the two spaces. A sensor is configured to detect passage of the drive unit between the first space and the intermediate space, and an identification sensor is arranged to read an identifier of the drive unit. In combination with an inventory management system, the monitoring system can be used to update and maintain accuracy of a virtual representation of a physical inventory space that employs automated drive units or shuttles.

Abstract: Embodiments herein describe techniques for operating lighting systems which can be used by associates who are colorblind or are susceptible to optically induced seizures (e.g., photosensitive epilepsy). In one embodiment, the lighting system includes programmable light sources which permit the lighting system to use colors that a colorblind person can easily distinguish—e.g., red, blue, orange, etc. Put differently, the lighting system can choose colors which are easily distinguishable to a colorblind associate when instructing the associate to take an action. Moreover, the lighting system can pulse a light source by changing its brightness or intensity over time. The lighting system can control a maximum gradient change rate and a maximum intensity change to mitigate a risk of optical seizures when pulsing the light sources to mitigate the risk of inducing a seizure.

Abstract: Embodiments herein describe techniques for operating lighting systems which can be used by associates who are colorblind or are susceptible to optically induced seizures (e.g., photosensitive epilepsy). In one embodiment, the lighting system includes programmable light sources which permit the lighting system to use colors that a colorblind person can easily distinguish—e.g., red, blue, orange, etc. Put differently, the lighting system can choose colors which are easily distinguishable to a colorblind associate when instructing the associate to take an action. Moreover, the lighting system can pulse a light source by changing its brightness or intensity over time. The lighting system can control a maximum gradient change rate and a maximum intensity change to mitigate a risk of optical seizures when pulsing the light sources to mitigate the risk of inducing a seizure.