IoT Technology LoRa Wireless AMR/AMI Water Meter

LoRa(Long Range) low power consumption data transmission, using linear frequency modulation ( LFM ) SPSP ( spread spectrum ) modulation technique. Its receiving sensitivity is up to -110dbm,and compared to other chip at advanced level in the industry, the receiving sensitivity is improved by up to 10db to the highest level, assuring the reliability of the network connection, being the mainstream product of the wireless communication.

Technical Features

-- Long transmission distance: peer to peer communication distance up to(2~3) km;
-- Low bit error rate: high efficiency of error correction of coding, which greatly strengthens the antijamming capability;
-- Ad-Hoc Network Technique: Assuring the patency of the data channel by automatically optimizes the routing via the relaying Ad-Hoc Network;
-- Using SPSP (spread spectrum) modulation technique, which makes its coding gain 10dbm higher than that of modulated by conventional modulation mode.
-- No wiring job required, achieving steady upload of data
-- Supports wireless meter reading by handset reader

 
Topology Diagram of Wireless Ad-Hoc Network

Technical Parameters

Supply voltage	（1.8-3.7）V
Transmitting power	17dbm(50mW)
Receiving sensitivity	-110dbm
Peer-to-Peer distance	1KM（Secure and stable distance）
Routing levels of Ad-Hoc Network	3 levels, 4 leaps（Secure and stable levels）
Average current	≤20uA
Network capacity	≤300 units
Coverage range	≤3km