2
1.
Introduction
This device is a simple positioning function (which can detect the position status of the device), and
periodically reports RSSI and SNR.
The information is processed by the gateway, and the location range of the device is detected
according to the reported RSSI and SNR information. The device applies SX1276 wireless
communication module. For reported RSSI, SNR information location status, the acceptance
sensitivity is -136 dBm (LoRa, Spreading Factor = 12, Bit Rate = 293 bps).
LoRa Wireless Technology:
LoRa is a wireless communication technology dedicated to long distance and low power
consumption. Compared with other communication methods, LoRa spread spectrum modulation
method greatly increases to expand the communication distance. Widely used in long-distance,
low-data wireless communications. For example, automatic meter reading, building automation
equipment, wireless security systems, industrial monitoring. Main features include small size, low
power consumption, transmission distance, anti-interference ability and so on.
LoRaWAN:
LoRaWAN uses LoRa technology to define end-to-end standard specifications to ensure
interoperability between devices and gateways from different manufacturers.
