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Companies Trying Sigfox Spot'It Tags for Low-Cost Tracking
The tags are designed to provide location data on Sigfox's cloud-based server without requiring an installation of readers or access points, or handheld devices to capture the data.
Mar 10, 2017—
Global communications service provider Sigfox has released a technological solution for tracking the locations of goods at a low cost, that serves as an alternative to radio frequency identification or GPS. Several companies are piloting the Spot'It system by tagging and thereby tracking goods through the Sigfox network. The solution is geared toward items that previously were not considered of high enough value to be tracked, or that move through the custody of too many companies, to make the building an RFID infrastructure feasible. Instead, Spot'It is designed to only require a tag that can be tracked while moving through complex supply chains at multiple locations, or while being stored in large facilities, yards or warehouses.
For those within the Sigfox network, Spot'It only requires that they buy a Sigfox communication module that acts as a tag for approximately $2.50 each (in high volume), and that they pay a monthly service fee. They can then simply let the cloud-based system track their goods via each tag's unique ID number.
"The premise is connecting the masses of little things in life," Proithis says, adding that the Internet of Thing Spot'It tags whisper rather than shout their presence. In other words, they transmit an ID number at preset intervals or when awoken. The location data is typically much less precise than with an active or passive RFID system. Because the Spot'It tags can remain dormant until woken up, he says, they have a battery life that can span several decades.
The shortcoming of RFID, according to Proithis, is that lower-cost passive tags can only be tracked when interrogated by a reader, requiring either a fixed reader infrastructure or an individual to carry a mobile reader past the tags. GPS systems are simply too expensive for low-cost items and do not work well indoors. "When you look at three million pallets," he states, "there's nothing that enables affordable tracking."
The Spot'It tag consists of a Sigfox-based transponder that can receive and transmit data. Users can determine how granular the location data needs to be, and can opt for a low-cost service that locates an item within 5 kilometers (3.1 miles) or so, 1 kilometer (0.6 mile) or 500 meters (1,640 feet). The system can also be built with other technologies, such as Bluetooth Low Energy (BLE) beacons, to make that location data much more specific. "Spot'It is a multi-level service," says Michael Orr, Sigfox's sales VP. In fact, about half of the company's customers are also using other technologies integrated with the Sigfox solutions. For instance, beacons could enable workers to gain updates regarding a tagged item via their smartphone.
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