US Patent 10521646 Monitoring shelves with pressure and light sensors

A system for monitoring planogram compliance on a store shelf is disclosed. The system may include a plurality of detection elements and a processor. The processor may be configured to receive first signals from a first subset of detection elements after a plurality of products are placed on the store shelf, and use the first signals to identify at least one pattern associated with a product type of the products. The processor may further be configured to receive from a second subset of detection elements second signals indicative of no products being placed on at least one area of the store shelf, and use the second signals to determine at least one empty space on the store shelf. The processor may also be configured to determine, based on the at least one pattern and the at least one empty space, at least one aspect of planogram compliance.