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What is the focus of LoRaWAN and LoRa?

LoRaWAN (Long Range Wide Area Network) and LoRa (Low Power Wide Area Network) are communication technologies used in Internet of Things (IoT) applications, including monitoring traffic, parking, and air quality in smart cities. Although they use similar underlying LoRa modulation technology, their focus and applications are different.


Focus: LoRaWAN is a wide-area network protocol whose main focus is to provide a long-distance, low-power wide-area IoT communication solution. It focuses on connecting large numbers of low-power sensors and devices to enable communication over long distances.

Network Topology: LoRaWAN usually adopts a star network topology, where end nodes (sensors and devices) are connected to a central network server through a gateway. This structure is suitable for large-scale sensor deployment, such as sensor networks in smart cities.

Security: LoRaWAN has strong security features, including data encryption and authentication, to ensure that transmitted data maintains confidentiality and integrity.

Device Management: LoRaWAN supports device management and remote device configuration to simplify large-scale device deployment and maintenance.

Open Standards: LoRaWAN uses open standards, allowing devices and networks from different vendors to work together, improving interoperability.


Focus: LoRa is the underlying physical layer technology of LoRaWAN, which mainly focuses on providing long-distance, low-power communication. It can be used for a variety of different communication protocols and applications, not just LoRaWAN.

Communication flexibility: LoRa is generally more flexible and can be used for point-to-point communication, point-to-multipoint communication or other communication with specific needs. It can be customized according to the requirements of the specific application.

Low power consumption: LoRa's low power consumption characteristics make it suitable for battery-powered sensors and devices, allowing long-term operation.

Proprietary or custom protocols: LoRa can be used with custom or proprietary communication protocols, customized to the needs of specific applications.

In general, LoRaWAN is more suitable for large-scale IoT deployments, such as monitoring systems in smart cities. It provides a standardized, secure, and low-power communication solution. LoRa is more flexible and can be used for various specific purposes of communication, but usually requires more customization and configuration. In practical applications, the choice of which technology to use depends on the specific needs and deployment situation.

What is SAE-J1939?

SAE J1939 (hereinafter referred to as J1939) is the recommended standard of the American Society of Automotive Engineers (SAE). digital communication between electronic components.