What is it? LoRa is a physical layer wireless digital communication modulation technology, known as chirp spread spectrum modulation technology (Chirp Modulation). Common wireless digital communication modulation technologies are FSK, ASK, and PSK. The physical layers of carrier technologies all use these three modulation technologies for communication.
LoRa is only a physical layer modulation technology. All LoRa chips currently on the market only perform simple physical layer work. Other chips such as Wi-Fi, 2G, 3G, NB-IoT, etc., have their own protocol stacks.
It is worth noting that LoRa is a spread spectrum modulation technology that can well balance rate and sensitivity. Its sensitivity is closer to the Shannon limit theorem, breaking the implementation limit of traditional FSK narrowband systems.
LoRa is known as a low-power, long-distance, economical, simple, and efficient wireless digital communication technology, widely used in global smart metering applications and military space communication fields.
With the rapid development of the Internet of Things, LoRa has gradually become the preferred choice for long-distance wireless RF communication. The application of LoRa technology has expanded to more vertical markets, including smart utilities, smart supply chain and logistics, smart home and buildings, smart agriculture, smart health and medical care, smart industrial control, smart community, and smart environment.
RF technology enables the tracking and management of everything, and good communication technology can also "save lives." It is understood that since 2017, Everynet has used LoRaWAN technology for four consecutive years to monitor and ensure the safety of athletes participating in the Tor des Géants ultramarathon in Italy, and has multiple actual rescue cases.
LoRa has many advantages and is a rapidly growing wireless technology. As of June, LoRa connection nodes exceeded 145 million. The number of members in the LoRa Alliance shows that the number of companies engaged in LoRa product development is also growing rapidly. The LoRa Alliance currently has about 500 members, many of whom are from China, such as Alibaba and Tencent.
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