Issue link: https://read.uberflip.com/i/1423253
LoRaWAN ™ and LoRa Alliance ™ are marks used under license from the LoRa Alliance ™ www.lora-alliance.org GEOLOCATION WHITEPAPER LoRaWAN™ GEOLOCATION TAKEAWAYS Summarizing the discussions above: • LoRaWAN TDOA geolocation is able to provide positioning accuracies of 20m to 200m. • Benefits of LoRaWAN geolocation are achievable with long-lived, battery-powered Class A end-devices at zero additional BOM cost. • Mitigation of multipath errors and sound gateway-placement geometry will provide accuracies approaching 20m. • LoRaWAN TDOA geolocation is particularly well suited for application such as: • Geo-fencing. Has a normally stationary asset moved? (anti-theft for construction sites, utility yards, airport, campuses, etc.). • Tracking slow-moving assets requiring infrequent position updates (people, pets, livestock herds, vehicles, etc.), particularly applicable to smart agriculture and smart cities use cases. • LoRaWAN TDOA geolocation may not be well suited for use cases such as: • Real-time mobile-asset tracking. Higher frequency positioning fixing means more power consumption, usage of Class C end-devices, etc. • High-dynamics asset tracking. • High-precision positioning (sub-meter … at least using the current gateway spacing and clock sources). • The LoRaWAN protocol can be used as the transport layer for use cases requiring GPS capabilities. 6 FOOTNOTES i. Simplified for two-dimensional positioning. In general, for three dimensions, the time difference defines a hyperboloid. ii. Simplified for two-dimensional positioning. In general, for three dimensions, the time difference defines a hyperboloid.