Abstract: A system actuates a force mechanism to control a force applied to items on a shelf. An amount of force to be applied to items on a shelf can depend upon context data associated with a user. The user context data may be based on an analysis of sensor data, such as image data or proximity data. Once user context data has been determined, configuration data can be generated and transmitted to the force mechanism to apply the designated amount of force to the items on the shelf. One way to apply the designated amount of force to the items on the shelf is to lift one end of the shelf upwards to create an angle between the shelf and a horizontal surface, using a height adjustment mechanism and a hinge. The variation in the angle produces different levels of force on the items.

Abstract: Described are systems and techniques configured to control force applied by a force mechanism in a self-facing inventory location in a facility. An amount of force to be applied to the items stored at the inventory location may be determined by a user context. The user context may include one or more of presence of a user within a threshold distance of the inventory location, particular gesture by the user such as reaching for an item stowed at the inventory location, and so forth. The user context may be based on processing of images acquired in the facility. In one example, as the user reaches for the item stowed at the inventory location, the force mechanism reduces the amount of force applied, easing removal of the item. With picking complete, the force mechanism increases the amount of force applied causing the remaining items in the inventory location to be faced.