Blog: What is LoRa IoT?
by bluelora

What is LoRa IoT?

the endpoint Netcom transmission technology of the Internet of things

Date:   11/9/2021 2:16:41 AM   ( 6 mon ) ... viewed 57 times

There are many technical solutions for the endpoint Netcom transmission technology of the Internet of things. The more famous technical solutions include NB-IoT, Lora, WiFi, Bluetooth, ZigBee, dustl and sub GHz. Different communication technologies have different characteristics and have their own application scenarios. Among them, Lora and Nb-IoT are the most used and most concerned in the Internet of things application scenarios. Lora IoT technology can meet long-distance and low-power data transmission. This application scenario can not be fully met by other IoT communication technologies, which is also the original intention of Lora IoT technology. Lora IoT technology is applicable to scenarios with wide range, small amount of data and low timeliness. To build Internet of things applications and build Internet of things systems, we must carefully understand the purpose, requirements and environment of the application scenario. Only with a detailed and objective understanding of the requirements and environment can we correctly determine the transmission technology. Choosing a manufacturer that can manufacture Internet of things devices with multiple protocols can make your Internet of things project progress more smoothly.

LoRa, what exactly is it?

Lora is a low-power WAN transmission technology. Lora is mostly used in the Internet of things. Lora is the abbreviation of the English word longrange. Long range also represents a core advantage of Lora, with long transmission distance.

Lora is a kind of lpwan communication technology. It is an ultra long distance wireless transmission scheme based on spread spectrum technology. Lora is based on linear frequency modulation spread spectrum, which not only maintains the low power consumption characteristics of signal spectrum modulation, but also significantly increases the communication distance. Lora IoT technology has high sensitivity and strong signal-to-noise ratio. The emergence of Lora can well solve the application scenarios of long-distance, low power consumption and small signal in the transmission of Internet of things. Lora has incomparable performance and has a wide range of applications in the era of Internet of things.

Introduction to the Internet of Things

Internet of things (IoT) refers to devices and technologies that connect objects to the network. The object itself cannot sense the change of the environment. It is necessary to install various Internet of things devices on the object, such as information sensor, laser scanner, radio frequency identification instrument, temperature and humidity sensor, etc. after these data are collected, they are transmitted to the server or processing center for processing. After the server processes the data, it will feed back according to the information. Objects are connected to objects and servers through sensors, network devices and gateways, so as to realize the intelligent perception, recognition and management of objects and processes. The Internet of things is an information carrier based on the Internet and traditional telecommunications networks. It allows all ordinary physical objects that can be independently addressed to form an interconnected network.

Introduction to Lora IoT

The LoRa IoT refers to the connection of objects to the network through LoRa modules, gateways and other devices. The Lora IoT is the transmission of various required information collected by various sensors and sensors and other terminal devices to network nodes and servers through the LoRa system. The terminal device can also react according to the information sent by the server or other terminal devices. The connection of the LoRa IoT system is bidirectional.

Advantages and disadvantages of LoRa IoT system
advantage:LoRa IoT network has the characteristics of long transmission distance, low working power consumption, many network nodes, strong anti-interference ability, and low cost.

Long transmission distance: sensitivity -148dBm, communication distance up to 15 kilometers
Low working energy consumption: Aloha method only connects when there is data, and the battery can work for several years
Multiple network nodes: flexible networking mode, multiple nodes can be connected
Strong anti-interference: The protocol has the function of LBT, based on the aloha method, with automatic frequency jump and rate adaptation functions
Low cost: unlicensed spectrum, low node/terminal cost shortcoming:LoRa IoT network has many advantages, but it also has certain disadvantages.

Spectrum interference: With the continuous development of LoRa, LoRa equipment and network deployment continue to increase, and certain spectrum interference will occur between each other.
Need to build a new network: During the LoRa deployment process, users need to build their own network.
Small payload: The payload of LoRa transmission data is relatively small and has a byte limit.

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