Lora opens a new era of Internet of things -asr6500s, asr6501/6502, asr6505, asr6601

stay 2018 At the cloud habitat conference in Hangzhou , Ding Xianfeng, chief scientist of Alibaba cloud's smart connect network, announced the launch “ Darwin plan ”, It aims to adopt a series of including platforms 、 Full link ecosystem services including chips and micro base stations , Deliver a self controlled Internet of things to enterprise customers .

A plane with “ Sky Internet of things ”LOGO Airship , At the same time, it carries LoRa IOT gateway , When it is activated , The on-site IOT devices were quickly connected by the signals on the airship . And when closed , Dozens of data on the big data screen will disappear instantly .

Ding Xianfeng said , From this event , We can see from 40000 Meters high, empty to the ground 20 rice , IOT network can be completely covered . The knowledge of airship demonstration is the concrete side of the Internet of things , Alibaba cloud hopes to create a controllable IOT network for enterprise customers . So , Alibaba cloud has worked with ASR The company cooperates to launch the smallest size in the industry LoRa chip , At the same time, we have reached in-depth cooperation with the Department of radio, film and television on the Internet of things , Rely on spectrum resources 、 Internet of things full link resources , Fast 、 Build IOT network at low cost .

01

LoRa chip

Alibaba cloud has worked with ASR The company cooperates to launch the smallest size in the industry LoRa chip ：

ASR6500S、ASR6501/6502、ASR6505、ASR6601

02

Chip features

independent

LoRa Modulation technology is a kind of spread spectrum modulation technology , Also known as Chirp modulation , This modulation technique is Semtech Unique to the company IP.

Ultra high sensitivity

LoRa The highest sensitivity can reach -149.1dBm, And Bluetooth 、ZigBee The sensitivity of wireless technology is -100dBm about .LoRa The demodulable signal strength is Bluetooth 、ZigBee One hundredth of .

LoRa The ultra-high sensitivity comes from the modulation itself , Independent of narrowband （Sixfox Use ultra narrow band technology ）, Nor does it rely on retransmission （NB-IOT Use retransmission Technology ）, Nor does it depend on coding redundancy （ZigBee Use coding redundancy ）.

Ultimate anti-interference

LoRa It has lower noise 20db Extreme anti-interference technology that can still communicate ; Can be under the noise 20db Normal demodulation signal ,FSK Theoretically, it needs to be above noise 8db To ensure demodulation .

low power consumption

The hardware and application protocols of the chip have low power consumption .LoRa Modulation mode with very high modulation efficiency , The operating current is very low , Its quiescent current <1uA; The receiving current is less than 5mA; The transmitting power is 17dBm The current is only 45mA.

 

03

Application field

Security equipment ： Smoke sensation 、 Hazardous gas monitoring

Three meter wireless centralized reading ： water 、 electric 、 Gas meter

Intelligent buildings ： temperature / humidity 、 Air conditioner 、 Lights, etc