Consider the hundreds of thousands of desktop and laptop computer units throughout offices, classrooms and satellite locations through out the school and government systems, manufacturing and logistics facilities in the United States. Most computer equipment has a life cycle of three to five years and 20-30 percent of the total units are replaced annually. This cost is in the hundreds of millions of dollars and, if lost or stolen, can cost companies, the government and taxpayers millions of dollars.
Typically, when a new piece of equipment is deployed, the manufacturer’s serial number is logged and a sequentially numbered bar code tag is attached to the computer and usually logged in via a hand written document book or keyed into an accounting system. The system is then audited by an internal team or external company, which locates and updates the system on a quarterly or annual basis. Once the audit has been completed, a printed discrepancy report provides the serial number and description of the item that has not been located. The problem with this “manual” or even “barcoded” systems is that the process relies on human intervention and provides many opportunities for logging or key entry errors. Studies have shown that 1 in 500 keystrokes can lead to an error and since a direct line of sight is required to scan a barcode, it is only effective when the asset can be physically located. Given the monetary impact, the human error factor is not an acceptable solution.
In most situations, manual audits become “search and destroy” missions. Teams of auditors are setup with auditing books and they are sent out to log or scan each and every asset that has been logged. If the assets have been tagged or logged correctly initially, this usually captures only about 80 percent of the items. Assets that maybe in a closet, drawer, packed in boxes or have simply been pilfered are not found and are written off the books and the system takes the loss and the dollar impact.
RFID is a seamless wireless environment that allows for noncontact identification reading that is similar to barcodes, but offers a more extensive list of benefits than current barcode systems. Although barcode systems are still workable, effective processes must be put in place in order for them to be successful. In recent installations companies have bypassed manual or barcode deployments and opted for RFID since the cost to deploy is not much more than traditional barcode applications and in some cases there is no additional cost to deploy the system.
RFID is comprised of three main components: an antenna or coil, a transceiver with decoder and a transponder (could be a handheld), or radio frequency (RF) tag, which is electronically programmed with information suited to your specific needs.
The RF tag allows for additional specific information to be added and information to be stored about the tagged item rather than a traditional barcode that can only reference a general item description. This enables companies to track carton or pallet level data, track assets, vehicles, manage tractor trailer/containers and control inventory as well as personnel. The other great benefit is that RFID software and configured hardware can read a multiple number of tags instantaneously instead of the traditional one-scan-ata-time that is currently provided by traditional barcodes and no line-of-sight is required.