When you need to keep track of people for safety and medical reasons (in airports, retirement houses, hospitals.), or when you are dealing with containers that have to be identified and located automatically (in ports, warehouses, stockyards...), there is no way to use passive or other common "short-range" active RFID solutions. The only cost-effective technology for these scenarios is UHF RFID.
Wavenis is perfectly compatible with UHF RFID application requirements, as it offers the Ultra Low Power and long range features you need at a price that makes deployment attractive. With the Wavenis technology and its network features you will not no longer need to use large passive readers to send signals out to collect information from tags. The one tag / one reader model can now be replaced by a wireless sensor network architecture that is very robust and reliable in terms of data transmission and identification.
Today Wavenis meets the needs of UHF RFID solutions :
- 868 MHz (UE/SEA), 915 MHz (US), 2.4 GHz
- Cost-effective 2-way radio communications
- Optimized power management for battery-operated devices
- Range over several hundred meters in free space
- Robustness and reliability (FHSS, data interleave, FEC...) optimized in comparison to typical ASK modulation of passive solutions
- Self-repair and self-configuration
- PPP, broadcast, pooling, repeater, mesh topology
- Specific applications for network management and data collection
Automatic toll-taking systems are one example of applying this technology in the real-world. Now proven effective for reducing traffic jams, automatic toll-taking systems allow cars to drive through a toll plaza without stopping. Their passage is recorded and payment is handled by a specific back-end system. For each transaction, the detection system needs to identify vehicles at a distance of around 150 feet -- giving time to confirm ID and exchange data. Wavenis RF technology's FHSS and FEC make this operation fool-proof, especially with its self-repair and self-configuration features that ensure an unbroken wireless link during transmission.
At this time, standardization efforts for UHF RFID solutions are only just emerging. Recent work by ANSI (American National Standards Institute) is investigating how to master compatibility and interoperability of Real Time Localization Systems (RTLS) dedicated to tracking goods. Along the same lines, EPC global is working towards real-time, automatic identification of items in supply chains. Based on our expertise in ULP and long range wireless network design, plus our field experience, Wavenis radio PHY and MAC layers provide an ideal match for UHF RFID requirements while maintaining compatibility with the ANSI & EPC global Application Program Interface.