With the continuous development of Internet of Things technology, wireless communication technology has been widely used in various fields. LoRa is a low-power, long-distance wireless communication technology, while LoRa MESH is a self-organizing network communication protocol based on LoRa technology. To put it simply, LoRa MESH is a MESH networking solution based on LoRa transmission.
Before introducing LoRa MESH, you need to understand what LoRa technology is.
LoRa technology is an Internet of Things communication technology developed by Semtech, which is characterized by low power consumption, long range and strong anti-interference ability.
Long distance
LoRa has a low transmission rate but high sensitivity, and its transmission distance is much longer than other wireless communication technologies, and it can transmit distances of several kilometers in outdoor environments, and even cover longer distances in urban environments. Therefore, it is suitable for long-distance, low-rate, and small-data applications.
Low power consumption
LoRa technology uses a low-power transmission method, which enables the device to operate on battery power for long periods of time. This feature is ideal for devices that require long-term operation and are difficult to replace batteries, such as sensor nodes, smart city devices, etc.
Strong anti-interference ability
LoRa uses spread spectrum technology, which makes it excellent anti-interference. When encountering external electromagnetic signal interference during communication, LoRa can continue to communicate stably, while traditional wireless technology cannot communicate.
Connect at scale
It supports large-scale device connectivity, and each base station can handle thousands of devices at the same time, making it suitable for building wide-area Internet of Things (LPWAN) networks.
什么是LoRa MESH？
LoRa MESH is an ad hoc network communication protocol based on LoRa technology. Using LoRa wireless communication technology, multiple devices are formed into a self-organizing network to form a mesh topology to realize the interconnection between devices. It has both the advantages of LoRa technology and the characteristics of Mesh ad hoc network.
Ad hoc network features
LoRa MESH network has the characteristics of self-organizing network, which can automatically build and maintain the network. When a device joins or leaves the network, the network automatically adjusts the topology to ensure the stability of data transmission. This ad hoc networking feature makes the LoRa MESH network highly flexible and scalable.
Routing node: The routing node receives data from the network for route update and data forwarding.
Endpoint: Endpoint nodes do not have the routing function, and endpoints are generally deployed at the edge of the network.
Multi-hop transmission
The LoRa MESH network adopts a multi-hop transmission method, and data can be forwarded through multiple nodes and finally reach the destination node. This multi-hop transmission mode can effectively extend the communication distance, improve the signal penetration ability, and reduce the communication pressure of a single node.
It is particularly important for equipment that operates in the workplace, such as smart homes, environmental monitoring, and other fields.
High capacity
Multi-hop communication improves the capacity and reliability of the network, and even if a node fails, data can still be transmitted through other paths. Therefore, LoRa MESH has a high capacity and can support the access of a large number of devices. This makes LoRa MESH networks very suitable for large-scale IoT scenarios, such as smart cities, smart agriculture, etc.
Low cost
LoRa MESH lowers the cost barrier for IoT applications by employing low-cost devices and solutions. More enterprises and developers will be able to participate in the innovation and application of the Internet of Things.
LoRa MESH technology communication mode
Single-hop communication
Single-hop communication is the most basic communication method, that is, the node directly communicates with the gateway or other nodes, and the data transmission path is relatively simple and direct.
Multi-hop communication
Multi-hop communication refers to the transmission of data from one node through multiple relay nodes to the destination node or gateway. This communication method can extend the network coverage and enhance the stability and reliability of the network.
Ad hoc networking
The LoRa MESH network supports the ad hoc networking function, that is, nodes can automatically discover and join the network without manual intervention. Communication connections are automatically established between nodes, forming a self-organizing network structure.
Multipath communication
Multipath communication means that data can reach the target node or gateway through different paths, which increases the flexibility and reliability of communication. When a communication path is blocked or fails, data can be transmitted through other paths to ensure the continuity of communication.
Frequency hopping technology
LoRa MESH networks can make use of frequency hopping technology to improve the security and anti-interference ability of communication. During the communication process, the node will dynamically switch channels to avoid interference and channel collision and ensure the stability of data transmission.
Wireless data transmission module LoRa611Pro transmission mode
LoRaPro module is the latest series of upgraded networking wireless communication modules launched by Siwei Wireless, which is based on Semtech's SX127X chip and developed, using advanced LoRa spread spectrum modulation frequency hopping technology, efficient reception sensitivity, so that its penetration ability and communication distance are far beyond the current general FSK and GFSK products, and has stronger anti-interference. In order to meet the application needs of different customers, LoRa611Pro provides two different transmission modes: Non MESH and MESH networking, which are suitable for various application scenarios. The wireless data transmission module software is designed as an all-in-one self-selected mode, the user can switch between the module in different working modes through the PC software configuration, and in the MESH mode, the routing module has the function of automatic routing, and the user can form a network transmission without blind area and distance restriction through the combination of multiple modules. At the same time, users can also encrypt wireless data with AES128 through PC software or serial port commands, making data transmission more secure. In the wireless data transmission module, the non-mesh transmission mode is suitable for simple and fast point-to-point transmission, and is suitable for small-scale and high-real-time applications.
LoRaMESH自组网应用分享
LoRaMESH makes full use of the advantages of LoRa's low-power, long-distance and small data transmission technology, and is an excellent solution for LoRa applications of the Internet of Things.
The application of LoRaMESH in IoT scenarios has many advantages, let's take a look at the specific examples:
Smart city: LoRa MESH network can be used for intelligent lighting control, intelligent traffic management, trash can monitoring and other applications in smart cities to achieve intelligent management and optimization of urban infrastructure.
Agricultural Internet of Things: LoRa MESH network can be used for soil moisture monitoring, meteorological data collection, farmland irrigation control and other applications in agricultural Internet of Things, improving the efficiency and quality of agricultural production.
Industrial automation: LoRa MESH networks can be used for equipment monitoring, production line management, logistics tracking and other applications in industrial automation to realize intelligent production and management of factories.
Logistics tracking: The LoRa MESH network can be used for applications such as cargo positioning, temperature and humidity monitoring, and transportation route planning in logistics tracking to improve the efficiency and safety of logistics and transportation.
Environmental monitoring: LoRa MESH network can be used for air quality monitoring, water quality monitoring, noise monitoring and other applications in environmental monitoring to achieve real-time monitoring and early warning of the environment.
Smart home: LoRa MESH network can be used for smart home appliance control, security monitoring, smart door locks and other applications in smart home to improve the comfort and convenience of home life.
IoT sensor network: LoRa MESH network can be used to build large-scale IoT sensor networks to achieve real-time monitoring and data collection of the physical world, and provide data support for various applications.
In general, LoRa MESH technology has a wide range of application prospects in various vertical IoT applications, and can provide reliable technical support for the realization of intelligent, convenient and efficient ways of living and working.
For more information about LoRaMesh solutions or customized solution needs, please contact Siwei Wireless Technology.