Lora base station coverage

 LoRa yes semtech A low-power LAN wireless transmission standard established by the company , Long distance transmission generally requires high power consumption , Low power transmission is generally difficult to achieve long-distance coverage , In this case, long-distance radio is needed (Long Range Radio)LoRa Debut ,LoRa The biggest feature is that under the same power consumption , It spreads farther than other wireless methods , It realizes the unification of long distance and low power consumption , At the same power consumption, it extends the distance of traditional wireless video communication 3-5 times

LoRa Its advantage lies in its long-distance capability in technology , One lora Base stations and gateways can even cover a city or hundreds of square kilometers , In a particular location , The transmission distance largely depends on the surrounding environment and obstacles , however LoRa and LoRa The gateway has a link budget

Superior to any other standardized communication technology . Link budget , Usually in decibels （dB In units of ） Express , It is the main factor that determines the distance in a given environment .

LoRa What are the features of ?

1、 Long transmission distance ： You can reach 2-5 km , Without obstacles , You can achieve 15 km ;

2、 Working frequency ：ISM Frequency band , Including common 433、868、915 Equal frequency band ;

3、 Node capacity ： One LoRa The gateway base station can connect thousands of LoRa node ;

4、 Transmission rate ： Hundreds to dozens kbps, The lower the rate, the longer the transmission

5、 Modulation mode ： Based on spread spectrum technology , A variant of linear modulation spread spectrum , Forward error correction capability .

LoRa Online structure become

LoRa The network is generally composed of terminal equipment 、 Gateway device 、 Network server 、 The application server consists of four parts

The terminal device is usually a small module or a terminal device with embedded modules , The transmission distance of this kind of equipment can generally reach several kilometers , Such as water and electricity meters 、 smoke detector 、 Logistics locator 、 Temperature and humidity sensor, etc ;

The gateway device is used to receive the data sent by the terminal device , Send them together , So people generally call it LoRa Concentrator , Gather the data together and send them smoothly , According to the network that sends data, it can be divided into Ethernet gateway and 4G Gateway and wifi gateway , At the same time, there are also several gateways together , Gateways that can convert protocols to each other , for example AC701 gateway ;

Network servers are usually built on cloud or private servers , This kind of server is mainly used for processing LoRa Parameters uploaded by gateway and node , The server on the device side ;

The application server is a server directly facing the client terminal , The received signal can be directly converted , Then send it to the client terminal

The above is what Anchuan IOT provides for you LoRa Full text of the coverage of the base station , I hope it can help you