With the Linentracker system, however, laundry employees can monitor each linen closet's inventory remotely, by checking stock levels displayed on a computer in the laundry area. Each
tag is encoded with a unique ID number that identifies the type of linen. The
reader mounted within each closet collects the tag ID numbers, and
RFID middleware provided by
KeyTone Technologies, a Santa Clara, Calif., provider of enterprise solutions, filters out redundant reads and sends the clean data to a software application that Linentracker developed in house. This software allows the hotel staff to view the inventory levels for each type of linen inside the closets in real time.
Combining the inventory numbers and tracking the soiled linens as they enter the laundry area, the Linentracker software also generates instructions for laundry workers regarding how much of the soiled linens they will need to launder in order to fulfill expected demand for the following day. This means the laundry staff can optimize their wash cycles and avoid running unnecessary, less-than-full loads, thereby reducing energy and water usage.
Using the real-time inventory data for the linen closets, the staff can stock the housekeeping carts for the next day without having to manually check each linen closet. Serbin says the hotel running the pilot project has identified this as one of the greatest benefits the Linentracker system offers—not only because it saves times, but also because it ensures inventory accuracy. "The biggest thing they are excited about," he says, "is seeing inventory—having the right numbers on floors so the closets are properly stocked when housekeepers get to work."
According to Serbin, the RFID tags can withstand at least 150 wash-and-dry cycles. This exceeds the industry average of 100 laundering cycles before a piece of hotel linen is discarded (due to staining or being threadbare) or lost, he says.
The Linentracker software maintains lifecycle data on each item, tracking the number of wash-and-dry cycles through which it is put until the point at which the staff determines it should be discarded. Consequently, hotels will be able to ascertain which linen suppliers provide the highest quality, longest-lasting products. On the flipside, they will also be able to identify poor stock that does not last as long as expected.
"Our mission is to assist hotels in tracking their moveable assets efficiently, in order to enhance the guest experience," Serbin states. "The existing process [for maintaining laundry] is manual and time-consuming. We are unlocking the mysteries by knowing where the items are at all times."
Another potential Linentracker application is deterring employee theft. At the pilot site, an RFID reader is mounted at the employee exit and entrance point. This way, the system can detect whether workers are bringing tagged linens into or out of the facility. Serbin declines to comment on whether the system had actually spotted any theft at the pilot site.