The kit will allow customers to quickly evaluate the performance of DecaWave’s UWB technology in multiple real-time location systems (RTLS) use cases. A concept can be proofed in hours and prototyped in days, the company says, to bring new and innovative products to the market faster. Based on the two-way ranging scheme, the kit will offer the possibility to test three different topologies.
The kit is based on the DW1000 chip which is the first IEEE802.15.4-2011 UWB compliant wireless transceiver. The chip, while allowing the location of objects to a precision of 10 cm, is also capable of high data-rate communications, up to 6.8 Mb/sec. This combined capability makes it a perfect fit to answer the “What, When, Where” questions essential to the deployment of the Internet of Things.
DecaWave’s Mickael Viot explains that the DW1000 is quite unlike a number of UWB proposals that emerged several years ago (and that failed to take off), “Those were aimed at very high bandwidth over a very short distance to transfer large files between devices: they used OFDM whereas the DW1000 is an impulse-radio-architecture chip that makes use of the characteristics of the RF signal to maximise [distance] accuracy and reliability.” It has in common with other UWB offerings the characteristic that the signal is a very low level – essentially, in the noise – and use of a coherent receiver enables reception of a useful amount of data in addition to its ranging performance. The chip is built, despite its operation over 3.5 to 6.5 GHz bands, in standard 90-nm CMOS, which enables DecaWave to be “open to” IP licensing in addition to its fabless chip supply model.
Due to its communications range of up to 290m in line-of-sight and up to 35m in non-line-of-sight, it also reduces the system cost by reducing the need for infrastructure. The three location modes use time-of-flight or time-difference of [signal] arrival methods of determining