LoRa Geolocation
summary
LoRa geolocation determines device position using time-difference-of-arrival (TDoA) measured by multiple gateways with nanosecond-accurate timestamps, with the TDoA processing done in the network server. It requires widespread gateway coverage and careful gateway placement (e.g., high or vehicle-top mounts) to be reliable; benchmarks show about 95% of fixes within 100 m and ~14% within 50 m, a ~90% success rate, and practical issues include urban multipath shifts and benefits from combining occasional GPS fixes with LoRa fixes to improve recoverability and battery life.
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chapters (13)
- 0:00LoRa geolocation intro
- 1:25No device changes
- 3:14Time difference of arrival
- 5:23Accuracy benchmarks
- 6:51LoRa geolocation services
- 7:33Bike tracking use case
- 9:43Affordable bike tracking
- 10:24Construction asset tracking
- 11:49Public transport monitoring
- 13:11Optimizing device placement
- 14:57LoRa vs GPS accuracy
- 16:23LoRa geolocation lessons
- 17:52Final tips
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