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ShelfX Unveils Store Shelves for Automating Purchases
The system, slated for supermarket pilots, will weigh products, determine what has been removed, and automatically charge a customer based on that person's RFID-enabled loyalty card or wristband.
Nov 02, 2011—Two major grocery chains, one located in Israel, the other in the United States, will begin piloting a new RFID-based system that provides intelligence to store shelves by detecting when a product is placed onto or taken off a shelf, as well as who is performing that action. The solution, scheduled for deployment early next year, was developed by Colorado-based startup firm ShelfX.
Ran Margalit, ShelfX's founder and CEO, has a background in both software and hardware for mobile phones. He says he was inspired to create a system that would make the shopping experience more like it once was—when customers were greeted by name, selected the items they wished to buy and then completed their purchases without having to wait in line or have bar codes scanned. The technology is intended to eliminate point-of-sale (POS) counters at which each item's bar code must be scanned, along with the resulting queues, while making more space previously dedicated to POS terminals available for stocking additional product. The solution is also intended to help stores track their own product inventory, and ensure that items are restocked in a timely manner.
Upon installing the system, a store would first situate the mat on the shelf, with the unit's reader and LCD screen positioned at the shelf edge, then place products on top of the mat. Each staff member would be issued an ID badge containing a high-frequency (HF) 13.56 MHz passive RFID tag made with an NXP Semiconductors Mifare chip that stores a unique ID number linked to that employee's identification. A worker would wave his badge within 7 inches of the reader, causing the unit's LCD screen to greet that individual by name. The first time that a product is placed on a shelf's weight-sensing mat, a worker would employ an Apple iPad to input the stock-keeping unit (SKU) of the product being loaded, as well as the quantity of items. Later, once that shelf requires replenishment, an employee would again place his badge near the unit's reader, and the system's back-end software would calculate the quantity of additional products being stocked (based on the changes in width, as measured by the sensor mat), and record that stocking event.
The mat's sensors can not only measure the amount of weight on top of it, thereby enabling the back-end software to calculate the quantity of products, but also detect where the products are located on the mat, based on the level of pressure exerted on those sensors. Therefore, if a shelf has all of its products pushed to the rear, or if it needs to be restocked, the system could detect that status and send a text message or e-mail to a staff member to take corrective action.
Upon arriving at the store to shop, a customer first picks up a bracelet or ID badge containing the same type of built-in RFID tag being used by the staff. (As an alternative to the badge, employees or shoppers could also utilize a Near Field Communication [NFC]-enabled mobile phone.) Before removing a product from the shelf, a customer would present the bracelet or badge to the reader, which would transmit the tag's ID number via an 802.15 ZigBee mesh network, formed by all of the shelf units installed throughout the store, until it is received by ShelfX software running on local and cloud-based servers. The LCD screen also displays the product's cost, while storing a record of the total cost of the goods being purchased. With each new selection, the individual would bag the items in his cart while shopping. The system in the produce area, for example, can detect the weight of a piece of fruit or vegetable being removed, and automatically bill accordingly.
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